U.S. patent application number 10/859316 was filed with the patent office on 2005-01-20 for gas supplying mechanism in a gas powered toy gun.
This patent application is currently assigned to Western Arms. Invention is credited to Kunimoto, Keiichi.
Application Number | 20050011508 10/859316 |
Document ID | / |
Family ID | 33411072 |
Filed Date | 2005-01-20 |
United States Patent
Application |
20050011508 |
Kind Code |
A1 |
Kunimoto, Keiichi |
January 20, 2005 |
Gas supplying mechanism in a gas powered toy gun
Abstract
A gas supplying mechanism in a gas powered toy gun comprises a
gas passage for supplying gas to be used for shooting a sham bullet
put in a bullet holding chamber, a movable valve for controlling
the gas passage to be open for supplying the gas and closed for
ceasing to supply the gas selectively, a hammer operative
selectively to rotate at high speed to a first position from a
second position in response to a triggering operation performed for
shooting the sham bullet and to rotate at low speed to the first
position from the second position independently of the triggering
operation, a positioning member provided to come into contact with
the hammer put in the first position for positioning the same, and
a movable linking member for moving in a first manner corresponding
to the high speed rotation of the hammer to push the movable valve
to move for shifting the gas passage to be open when the hammer
rotates at the high speed and for moving in a second manner
corresponding to the low speed rotation of the hammer to cause the
movable valve to keep the gas passage closed without pushing the
movable valve to move when the hammer rotates at the low speed.
Inventors: |
Kunimoto, Keiichi;
(Shibuya-ku, JP) |
Correspondence
Address: |
NIXON PEABODY, LLP
401 9TH STREET, NW
SUITE 900
WASHINGTON
DC
20004-2128
US
|
Assignee: |
Western Arms
Tokyo
JP
|
Family ID: |
33411072 |
Appl. No.: |
10/859316 |
Filed: |
June 3, 2004 |
Current U.S.
Class: |
124/73 |
Current CPC
Class: |
F41B 11/62 20130101;
F41A 17/74 20130101 |
Class at
Publication: |
124/073 |
International
Class: |
F41B 011/00 |
Foreign Application Data
Date |
Code |
Application Number |
Jun 25, 2003 |
JP |
2003-180511 |
Claims
What is claimed is:
1. A gas supplying mechanism in a gas powered toy gun, which
comprising; a gas passage for supplying gas to be used for shooting
a sham bullet put in a bullet holding chamber, a movable valve for
controlling the gas passage to be open for supplying the gas and
closed for ceasing to supply the gas selectively, a hammer
operative selectively to rotate at high speed to a first position
from a second position in response to a triggering operation
performed for shooting the sham bullet and to rotate at low speed
to the first position from the second position independently of the
triggering operation, a positioning member provided to come into
contact with the hammer put in the first position for positioning
the same, and a movable linking member for moving in a first manner
corresponding to the high speed rotation of the hammer to push the
movable valve to move for shifting the gas passage to be open when
the hammer rotates at the high speed and for moving in a second
manner corresponding to the low speed rotation of the hammer to
cause the movable valve to keep the gas passage closed without
pushing the movable valve to move when the hammer rotates at the
low speed.
2. A gas supplying mechanism according to claim 1, wherein said
hammer is rotated manually at the low speed.
3. A gas supplying mechanism according to claim 1, wherein said
positioning member is constituted with a rear end portion of a
slider provided to be movable to the bullet holding chamber.
4. A gas supplying mechanism according to claim 1, wherein said
movable linking member is separately from the hammer to be able to
engage with both of the hammer and the movable valve for engaging
with a first portion of the hammer so as to push the movable valve
to move when the hammer rotates at the high speed and for engaging
with a second portion of the hammer so as not to push the movable
valve to move when the hammer rotates at the low speed
5. A gas supplying mechanism according to claim 4, wherein said
first portion of the hammer is constituted with a knocking portion
provided on the hammer for striking the movable linking member and
said second portion of the hammer is constituted with an opening
portion provided on the hammer for receiving the movable linking
member coming thereinto.
6. A gas supplying mechanism according to claim 4, wherein said
movable linking member is positioned with an axis to be separated
from the hammer and operative to rotate with the center of rotation
on the axis and to move forward and backward with the guidance by
the axis.
7. A gas supplying mechanism according to claim 1, wherein said
movable linking member is attached rotatably to the hammer to be
forced to rotate in a predetermined direction by an energizing
means provided on the hammer for engaging with the movable valve
and operative to push the movable valve to move with a relatively
small amount of rotation caused by the energizing means when the
hammer rotates at the high speed and not to push the movable valve
to move with a relatively large amount of rotation caused by the
energizing means when the hammer rotates at the low speed.
8. A gas supplying mechanism according to claim 7, wherein a fixed
member is provided to be separated from the hammer and said movable
linking member forced by the energizing means provided on the
hammer comes into contact with the fixed member to be restrained
from rotating.
9. A gas supplying mechanism according to claim 7, wherein the
energizing means provided on the hammer is constituted with a coil
spring having one end portion thereof positioned by the hammer and
another end portion thereof being in contact with the movable
linking member.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The present invention relates generally to a gas supplying
mechanism in a gas powered toy gun, and more particularly to an
improvement in a mechanism provided in a toy gun, which has a
bullet holding chamber and a hammer and powered with gas, for
controlling a movable valve positioned in relation to a gas passage
in the toy gun to be operated by means of the rotation of a hammer
for supplying gas through the gas passage to be used for shooting a
sham bullet put in a bullet holding chamber.
[0003] 2. Description of the Prior Art
[0004] A model gun which is often called an air soft gun is made to
imitate a real gun in not only its color and shape but also its
apparent operations. As one of these model guns, it has been
proposed a gas powered toy gun in which a pressure accumulating
chamber is formed in a grip to be filled with compressed gas and a
gas passage extending from the pressure accumulating chamber is
opened, by means of the rotation of a hammer linked with a trigger
to operate in response to the movement of the trigger, to supply a
bullet holding chamber with the gas discharging from the pressure
accumulating chamber to be used for shooting a sham bullet put in
the bullet holding chamber, or a pressure accumulating chamber is
formed in a grip to be filled with compressed gas and the gas
discharging from the pressure accumulating chamber is supplied
through a gas passage extending from the pressure accumulating
chamber to be used not only for shooting a sham bullet put in a
bullet holding chamber but also for causing a slider provided to be
movable along a barrel to move backward so that the bullet holding
chamber having been made empty is supplied with the next sham
bullet by the slider moving forward after its backward movement, as
shown in, for example, Japanese patent application published before
examination under publication number 8-233492.
[0005] The gas powered toy gun thus proposed previously is provided
with, in addition to the hammer, the pressure accumulating chamber
and the slider, a movable shooting pin which is struck by the
hammer rotating in response to the pulling operation of the trigger
and a valve means which is constituted with a piston and a valve
body and operative to be moved by the movable shooting pin struck
by the hammer to shift the gas passage extending from the pressure
accumulating chamber to be open. When the gas passage is made open
by the valve means, the gas pressure passing through the gas
passage from the pressure accumulating chamber is used for shooting
the sham bullet put in the bullet holding chamber and also for
moving the slider backward. Then, the hammer put in a position for
pushing the movable shooting pin is rotated to go away from the
movable shooting pin by means of the backward movement of the
slider and thereby the valve means moves to shift the gas passage
extending from the pressure accumulating chamber to be closed. The
slider continues to move backward with inertia after the gas
passage is shifted to be closed and then turns to move forward with
energizing force exerted thereto when having arrived at the most
retreated position. With the forward movement of the slider, a sham
bullet held at the upper end portion of a magazine is carried
toward the bullet holding chamber, so that the bullet holding
chamber which has been made empty is supplied with the next sham
bullet.
[0006] In a gas powered toy gun to which the above mentioned
arrangement wherein the gas passage extending from the pressure
accumulating chamber provided as a gas supplying source is
controlled to be made open or closed by a mechanism constituted
with the hammer, the movable shooting pin operative to be struck by
the hammer and the valve means is applied, as shown in FIG. 1, for
example, a valve means 12 is provided movably to a gas passage 11
extending from a gas supplying source and a movable shooting pin 13
is further provided at the back of the valve means 12.
[0007] In the gas powered toy gun shown in FIG. 1, a rotary lever
17 which engages with a hammer 14, which is put in a cocked
position for making preparation for shooting a sham bullet as
indicated with broken lines in FIG. 1, so as to prevent the hammer
14, to which energizing force by a hammer spring 16 is transmitted
through a hammer strut 15, from rotating in the forward direction,
is caused to be disengaged from the hammer 14 when a trigger not
shown in FIG. 1 is pulled. Thereby, the hammer 14 put in the cocked
position is rotated at high speed in the forward direction with the
energizing force by a hammer spring 16. The hammer 14 thus rotated
causes a knocking portion 14A thereof to come into contact with the
rear end portion of the movable shooting pin 13 detached from the
valve means 12 which is put in a position for closing the gas
passage 11 as indicated with solid lines in FIG. 1, and then comes
into a space 18A formed at the rear end portion of a slider 18 to
strike forcibly the movable shooting pin 13 as shown in FIG. 2.
[0008] The movable shooting pin 13 struck by the hammer 14 moves
against the energizing force by a spring mounted thereon to push
the valve means 12 and thereby the valve means 12 moves to shift
the gas passage 11 to be open.
[0009] General ly, in the case of a gas powered toy gun having a
hammer and a movable shooting pin or a firing pin and a bullet
holding chamber, the hammer put in a cocked position once is
manually rotated slowly in the forward direction to return to a
decocked position without striking the movable shooting pin or the
firing pin so as not to shoot a sham bullet put in the bullet
holding chamber when the gas powered toy gun is kept in custody at
a predetermined place to be unused or put in an unused condition to
be carried, in almost the same manner as a case of a real gun. At
that time, the hammer is slowly brought down to be in the decocked
position from the cocked position.
[0010] To be more concrete, in the case of the gas powered toy gun
proposed previously as shown in FIGS. 1 and 2, which has the gas
passage 11, the valve means 12, the movable shooting pin 13 and the
hammer 14, the hammer 14 released from the engagement with the
rotary lever 17 in response to the pulling operation of the trigger
performed once is manually shifted slowly for restraining the
energizing force by the hammer spring 16 acting on the hammer 14 to
a decocked position as indicated with solid lines in FIG. 1 from a
cocked position as indicated with dash and dot lies in FIG. 1 so as
to stay in the decocked position when the gas powered toy gun shown
in FIGS. 1 and 2 is kept in custody at a predetermined place to be
unused or put in an unused condition to be carried. The hammer 14
put in the decocked position causes the knocking portion 14A
thereof to come close to or come into contact slightly with the
rear end portion of the movable shooting pin 13 without pushing or
moving the movable shooting pin 13 and engages with the rotary
lever 17, so that the valve means 12 is stably put in the position
for keeping the gas passage 11 closed. When the hammer 14 is kept
in the decocked position, the hammer spring 16 is not expanded nor
contracted so as not to exert the energizing force upon the hammer
14.
[0011] As described above, in the gas powered toy gun proposed
previously, the hammer 14 is put in the decocked position when the
gas powered toy gun is kept in an unused state. The hammer 14 thus
put in the decocked position can not be stable enough due to its
mechanical structure. For example, when a relatively large pushing
force is exerted to the hammer 14 put in the decocked position form
behind, it is feared that the hammer 14 is released unintentionally
from the engagement with the rotary lever 17 or the rotary lever 17
engaging with the hammer 14 is deformed or damaged, and then the
hammer 14 is operative undesirably to push the movable shooting pin
13 to move the same so that the valve means 12 is operative
undesirably to shift the gas passage 11 to be open from closed.
When such a situation that the hammer 14 is operative undesirably
to move the movable shooting pin 13 and thereby the valve means 12
is operative undesirably to shift the gas passage 11 to be open
from closed, is brought about, the gas discharged from the gas
supplying source is undesirably supplied through the gas passage 11
to the bullet holding chamber so as to cause an accidental
discharge of the sham bullet put in the bullet holding chamber.
OBJECTS AND SUMMARY OF THE INVENTION
[0012] Accordingly, it is an object of the present invention to
provide a gas supplying mechanism in a gas powered toy gun, in
which a movable valve provided for controlling a gas passage,
through which gas is supplied to be used for shooting a sham
bullet, to be open and closed selectively, is put into its
operation for making the gas passage open by a hammer rotating in
response to a triggering operation performed for shooting the sham
bullet so that the supply of gas through the gas passage is carried
out, and which avoids the aforementioned disadvantages encountered
with the prior art.
[0013] Another object of the present invention is to provide a gas
supplying mechanism in a gas powered toy gun, in which a movable
valve provided for controlling a gas passage, through which gas is
supplied to be used for shooting a sham bullet, to be open and
closed selectively, is put into its operation for making the gas
passage open by a hammer rotating in response to a triggering
operation performed for shooting the sham bullet so that the supply
of gas through the gas passage is carried out, and further in which
the hammer, which has been shifted to a decocked position from a
cocked position independently of the triggering operation, can be
kept in the decocked position with certainty.
[0014] A further object of the present invention is to provide a
gas supplying mechanism in a gas powered toy gun, in which a
movable valve provided for controlling a gas passage, through which
gas is supplied to be used for shooting a sham bullet, to be open
and closed selectively, is put into its operation for making the
gas passage open by a hammer rotating in response to a triggering
operation performed for shooting the sham bullet so that the supply
of gas through the gas passage is carried out, and further in which
the hammer, which has been slowly shifted to a decocked position
from a cocked position independently of the triggering operation,
can be kept in the decocked position with certainty, so that an
undesirable operation of the movable valve caused by a pushing
force exerted undesirably to the movable valve due to the movement
of the hammer can be avoided.
[0015] According to the present invention, as claimed in any one of
claims 1 to 9, there is provided a gas supplying mechanism in a gas
powered toy gun, which comprises a gas passage for supplying gas to
be used for shooting a sham bullet put in a bullet holding chamber,
a movable valve for controlling the gas passage to be open for
supplying the gas and closed for ceasing to supply the gas
selectively, a hammer operative selectively to rotate at high speed
to a first position from a second position in response to a
triggering operation performed for shooting the sham bullet and to
rotate at low speed to the first position from the second position
independently of the triggering operation, a positioning member
provided to come into contact with the hammer put in the first
position for positioning the same, and a movable linking member for
moving in a first manner corresponding to the high speed rotation
of the hammer to push the movable valve to move for shifting the
gas passage to be open when the hammer rotates at the high speed
and moving in a second manner corresponding to the low speed
rotation of the hammer to cause the movable valve to keep the gas
passage closed without pushing the movable valve to move when the
hammer rotates at the low speed.
[0016] In the gas supplying mechanism thus constituted in
accordance with the present invention, the hammer rotates
selectively at the high speed in response to the triggering
operation performed for shooting the sham bullet and at the low
speed independently of the triggering operation. With each of the
high speed and low speed rotations, the hammer moves to a decocked
position from a cocked position, and the hammer put in the decocked
position is subjected to the positioning by the positioning
member.
[0017] When the hammer rotates at the high speed, the movable
linking member pushes the movable valve to move for shifting the
gas passage to be open in response to the high speed rotation of
the hammer, so that the supply of gas through the gas passage is
carried out, and thereby, for example, the sham bullet put in the
bullet holding chamber is shot. On the other hand, when the hammer
rotates at the low speed, the movable linking member causes the
movable valve to keep the gas passage closed without pushing the
movable valve to move in response to the low speed rotation of the
hammer, so that the supply of gas through the gas passage is not
carried out.
[0018] The movable liking member is provided separately from the
hammer to be able to engage with both of the hammer and the movable
valve for engaging with a first portion, such as a knocking
portion, of the hammer so as to push the movable valve to move when
the hammer rotates at the high speed and for engaging a second
portion, such as an opening portion, of the hammer so as not to
push the movable valve to move when the hammer rotates at the low
speed, as that in an embodiment claimed in claim 4, or mounted
rotatably on the hammer and forced to rotate in a predetermined
direction by an energizing means provided on the hammer so as to be
able to engage with the movable valve for pushing the movable valve
to move with a relatively small amount of rotation caused by the
energizing means when the hammer rotates at the high speed and for
keeping the movable valve staying with a relatively large amount of
rotation caused by the energizing means when the hammer rotates at
the low speed, as that in another embodiment claimed in claim
7.
[0019] With the gas supplying mechanism thus constituted in
accordance with the present invention, by means of the operations
of the movable linking member performed in response to both of the
high speed and low speed rotations, the movable valve is moved to
shift the gas passage to be open so that the gas supply through the
gas passage is carried out and thereby the sham bullet put in the
bullet holding chamber is surely shot with gas when the hammer
rotates at the high speed and the movable valve is not moved to
keep the gas passage closed so that the gas supply through the gas
passage is not carried out when the hammer rotates at the low
speed. The hammer having rotated at the high or low speed to move
to the decocked position from the cocked position is positioned
mechanically by the positioning member to be stably put in the
decocked position. Accordingly, the hammer which has rotated at the
low speed to move to the decocked position from the cocked position
without pushing the movable valve for keeping the gas passage
closed is subjected to the positioning by the positioning member to
be kept in the decocked position with certainty, so that the
undesirable operation of the movable valve caused by the pushing
force exerted undesirably to the movable valve due to the movement
of the hammer put in the decocked position can be avoided.
[0020] The above, and other objects, features and advantages of the
present invention will become apparent from the following detailed
description taken in conjunction with the accompanying
drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
[0021] FIG. 1 is a schematic cross sectional view used for
explaining the construction and operation of an example of a gas
supplying mechanism in a gas powered toy gun proposed
previously;
[0022] FIG. 2 is a schematic cross sectional view used for
explanation of the structure and operation of the example shown in
FIG. 1;
[0023] FIG. 3 is a partially cross sectional schematic side view
showing an example of a gas powered toy gun to which a first
embodiment of gas supplying mechanism in a gas powered toy gun
according to the present invention is applied;
[0024] FIGS. 4, 5, 6, 7, 8 and 9 are schematic cross sectional
views used for explaining the construction and operation of the
embodiment shown in FIG. 3;
[0025] FIG. 10 is a partially cross sectional schematic side view
showing another example of a gas powered toy gun to which a second
embodiment of gas supplying mechanism in a gas powered toy gun
according to the present invention is applied; and
[0026] FIGS. 11, 12, 13, 14, 15 and 16 are schematic cross
sectional views used for explaining the construction and operation
of the embodiment shown in FIG. 10.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0027] FIG. 3 shows an example of a gas powered toy gun to which a
first embodiment of gas supplying mechanism in a gas powered toy
gun according to the present invention is applied.
[0028] Referring to FIG. 3, the gas powered toy gun to which the
first embodiment of gas supplying mechanism according to the
present invention is applied has a body 30 in which a trigger 21, a
barrel 22, a bullet holding chamber 23 positioned in a rear portion
of the barrel 22, a hammer 24 and a grip 25 are provided, a case 31
held to be detachable in the grip 25, and a slider 32 provided to
be movable along the barrel 22. The bullet holding chamber 23 is
formed in a tubular member 23A which is made of elastic frictional
material, such as rubber, and put in the inside of the rear portion
of the barrel 22.
[0029] In the grip 25, a movable bar member 33 extending backward
from the trigger 21 is provided to be movable in the direction
along the barrel 22. When triggering, the trigger 21 is moved
backward from an operational initial position in front of a contact
portion 34 provided on the body 30 and the movable bar member 33 is
also moved backward together with the trigger 1. A leaf spring 35
is in contact with a rear end portion of the movable bar member 33
for exerting an energizing force to push the movable bar member 33
in the forward direction.
[0030] The slider 32 is attached to be movable to a portion of the
body 30 where the barrel 22 is provided. When the trigger 21 is put
in the operational initial position, the slider 32 is put in a
reference position with a front end thereof positioned to be close
to a front end of the portion of the body 30 where the barrel 22 is
provided. Further, the slider 32 is forced by a coil spring (not
shown in the drawings) mounted on the body 30 toward the outside in
front of the body 30.
[0031] The hammer 24 has an upper portion with which a rear end
portion 32A of the slider 32 comes selectively into contact and a
lower portion which is provided with a plurality of engaging steps
and attached to be rotatable with an axis 37 to the rear end
portion of the body 30. One end portion of a hammer strut 40 which
has the other end portion connected with a pin 41 to the lower
portion of the hammer 24 engages through a cap 39 with a hammer
spring 38 provided in the lower portion of the grip 25, and thereby
the hammer 24 is forced upward through the hammer strut 40 and the
cap 39 by the hammer spring 38 to cause the upper portion thereof
to rotate in a direction toward the rear end portion 32A of the
slider 32 as indicated by an arrow a in FIG. 3 (a direction).
Further, an opening 24A is provided on the front side of the lower
portion of the hammer 24.
[0032] In an initial condition wherein the case 31 is inserted into
the grip 25 as shown in FIG. 3, the hammer 24 is so positioned that
the rear end portion 32A of the slider 32 is in contact with the
upper portion of the hammer 24 and a rear end portion 43A of a
movable linking member 43 is in engagement with the opening 24A
provided on the lower portion of the hammer 24. The hammer 24 thus
positioned is put in a decocked position.
[0033] A rotary lever 44 is attached rotatably with an axis 45 to
the body 30 to be positioned close to the lower portion of the
hammer 24 positioned below the movable linking member 43. The axis
45 is also in engagement with a movable contacting member 46.
[0034] A slotted hole 43B is provided on the movable linking member
43 and the movable linking member 43 is attached to be movable with
an axis 42 planted through the slotted hole 43B to the body 30, as
shown in FIG. 4. A coil spring 47 is provided in the slotted hole
43B for energizing the movable linking member 43 in its entirety to
move backward with restraining by the axis 42. Further, a coil
spring 48 is provided between the movable linking member 43 and the
body 30 for energizing the movable linking member 43 to move
downward. Accordingly, the movable linking member 43, which is
forced to move backward by the coil spring 47 and also forced to
move downward by the coil spring 48, is able to move backward and
forward selectively under the guidance by the axis 42 engaging with
the slotted hole 43B and to rotate around the axis 42. Therefore,
the movable linking member 43 is put selectively in a first
condition in which the rear end portion 43A of the movable linking
member 43 is in engagement with the hammer 24 and in a second
condition in which a front end portion 43C of the movable linking
member 43 is in contact with a rear end portion of a rod 51
constituting a movable valve 50 explained later.
[0035] The rotary lever 44 attached to the body 30 to be rotatable
around the axis 45 is provided with a curved shape having an upper
end thereof engaging with the lower portion of the hammer 24 and a
lower portion 44B engaging with a leaf spring 53, as shown in FIG.
4. The leaf spring 53 is operative to exert the energizing force to
the rotary lever 44 for causing an upper end portion 44A of the
rotary lever 44 to come into contact with the lower portion of the
hammer 24.
[0036] A lower end portion of the leaf spring 53 is attached,
together with a lower portion of the leaf spring 35, to a portion
of the body 30 positioned in the grip 25, as shown in FIG. 3.
[0037] The case 31 is inserted into the grip 25 through an opening
provided at a lower end portion of the grip 25 and a bottom portion
of the case 31 is engaged with the lower end portion of the grip 25
so that the case 31 is held in the grip 25, as shown in FIG. 3. The
case 31 is provided therein with a magazine 56 for containing sham
bullets BB, in which a coil spring 55 is provided for pushing up
the sham bullets BB, a pressure accumulating chamber 57 which is
charged with, for example, liquefied gas, a gas leading passage 58
extending from the pressure accumulating chamber 57, the movable
valve 50 provided in relation to the gas leading passage 58, and a
connecting passage 59 connected with the gas leading passage 58.
The connecting passage 59 is provided for connecting the gas
leading passage 58 with a bullet shooting gas passage 61, which is
formed in a movable member 60 provided in the slider 32 to reach
the bullet holding chamber 23, in dependence on the position of the
movable member 60.
[0038] The movable valve 50 is provided to be movable to the gas
leading passage 58 for controlling the gas leading passage 58 to be
open and closed selectively in dependence on its position. A
sealing ring 62 is mounted on the movable valve 50, a portion of
which is shaped into the rod 51, as shown in FIG. 4. Then, the
movable valve 50 thus constituted is normally positioned to make
the gas leading passage 58 closed with an energizing force by a
coil spring 63 mounted on the rod 51, as shown in FIGS. 3 and 4.
The gas leading passage 58 and the connecting passage 59 are formed
in an upper portion of the case 31 which is placed in the grip 25
and therefore the movable valve 50 provided to be movable to the
gas leading passage 58 is also provided in the upper portion of the
case 31 above the pressure accumulating chamber 57 held in the grip
25.
[0039] In the condition wherein the slider 32 is put in the
reference position and the case 31 is held in the grip 25 in such a
manner as shown in FIG. 3, the gas leading passage 58, which is
formed in the upper portion of the case 31 above the pressure
accumulating chamber 57 in the grip 25 and closed by the movable
valve 50, is connected, through the connecting passage 59 formed
also in the upper portion of the case 31 above the pressure
accumulating chamber 57 in the grip 25, with the bullet shooting
gas passage 61 extending to the bullet holding chamber 23. Under
such a condition, the hammer 24 is put in the decocked
position.
[0040] In the gas powered toy gun shown in FIG. 3 and constituted
as described above, a portion including the hammer 24, the rear end
portion 32A of the slider 32, the movable linking member 43, the
gas leading passage 58, the connecting passage 59 and the movable
valve 50 constitutes a first embodiment of the gas supplying
mechanism in the gas powered toy gun according to the present
invention.
[0041] Then, in the gas powered toy gun shown in FIG. 3, under a
condition wherein the case 31 has been held in the grip 25 and the
sham bullet has not been supplied yet to the bullet holding chamber
23, the slider 32 is once moved backward together with the movable
member 60 manually from the reference position and then released to
be move forward by a coil spring not shown in the drawings to
return together with the movable member 60 to the reference
position.
[0042] During such movements of the slider 32, the movable member
60 which makes the upper end portion of the magazine 56 closed is
moved backward together with the slider 32 moving backward, so that
the upper end portion of the magazine 56 is made open and one of
the sham bullets BB at the top in the magazine 56 is pushed up by
the coil spring 55 into the upper end portion of the magazine 56 to
be held therein.
[0043] When the slider 32 is manually moved back, the hammer 24 is
pushed to rotate by the rear end portion 32A of the slider 32 from
the position shown in FIGS. 3 and 4 against the energizing force
transmitted through the hammer strut 40 from the hammer spring 38
in a direction indicated by an arrow b in FIG. 3 (b direction) and
opposite to the a direction, and thereby, the rotary lever 44 is
rotated in the direction following the energizing force by the leaf
spring 53. With the rotation of the hammer 24 in the b direction,
the rear end portion 43A of the movable linking member 43 is
released from the engagement with the opening 24A formed on the
lower portion of the hammer 24.
[0044] After that, the hammer 24 having rotated in the b direction
reaches a cocked position and the upper end portion 44A of the
rotary lever 44 engages with the lower portion of the hammer 24, so
that the hammer 24 and the rotary lever 44 are mutually fixed in
position and the hammer 24 is kept in the cocked position, as shown
in FIG. 5.
[0045] The lower portion of the hammer 24 put in the cocked
position is operative to push up the movable linking member 43 for
rotating the same upward with the center of rotation on the axis
42, so that the movable linking member 43 is put in an upper
position to compress the coil spring 48. As a result, although the
movable linking member 43 is forced downward by the coil spring 48,
the lower portion of the hammer 24 put in the cocked position
prevents the movable linking member 43 from rotating downward with
the center of rotation on the axis 42.
[0046] Then, when the slider 32 moves forward after having moved
backward once, the movable member 60 is also moved forward together
with the slider 32 moving forward so as to cause the front portion
thereof to come into the upper end portion of the magazine 56 and
to carry the sham bullet BB in the upper end portion of the
magazine 56 to the bullet holding chamber 23. On that occasion, the
movable member 60 is operative again to close the upper end portion
of the magazine 56 and to cause the front portion thereof to be
coupled with to the bullet holding chamber 23 formed by the tubular
member 23A so that the movable member 60 is fixed in position. As a
result, the sham bullet BB is supplied to the bullet holding
chamber 23 to be put in the same, as shown in FIG. 3.
[0047] When the slider 32 has returned to the reference position
after its forward movement for supplying the bullet holding chamber
23 with the sham bullet BB, the gas leading passage 58 which is
closed by the movable valve 50 is again connected through the
connecting passage 59 with the bullet shooting gas passage 61
extending to the bullet holding chamber 23.
[0048] After the sham bullet BB has been supplied to the bullet
holding chamber 23 as described above and shown in FIG. 3, when the
trigger 21 is pulled, the movable bar member 33 is moved backward
against the energizing force by the leaf spring 35. With the
backward movement of the movable bar member 33, the rear end
portion of the movable bar member 33 moves to push back the lower
portion 44B of the rotary lever 44 through the lower portion of the
movable contacting member 46 and cause the rotary lever 44 to
rotate against the energizing force exerted by the leaf spring 53,
as shown in FIG. 6. Consequently, the upper end portion 44A of the
rotary lever 44 is released from the engagement with the lower
portion of the hammer 24.
[0049] The hammer 24 released from the positional restriction by
the rotary lever 44 is rotated by the hammer spring 38 at high
speed in the a direction with the center of rotation on the axis
37. With this high speed rotation of the hammer 24, the movable
linking member 43 is released from the engagement with the lower
portion of the hammer 24 so as not to be pushed up by the lower
portion of the hammer 24, as shown in FIG. 7.
[0050] As a result, the movable linking member 43, which is forced
to move downward by the coil spring 48, to be put in tendency of
moving downward, put in such a condition as to be able to rotate
downward with the center of rotation on the axis 42. However, in
practice, before the movable linking member 43 rotates downward to
shift its position substantially, a knocking portion 24B of the
hammer 24 which is rotated at the high speed in the a direction
strikes forcibly the rear end portion 43A of the movable linking
member 43, as shown in FIG. 8, and thereby the movable linking
member 43 is pushed by the knocking portion 24B of the hammer 24 to
move forward rapidly under the guidance by the axis 42 engaging
with the slotted hole 43B formed on the movable linking member
43.
[0051] When the movable linking member 43 thus moves forward
rapidly, the front end portion 43C of the movable linking member 43
comes into contact with the rear end portion of the rod 51
constituting the movable valve 50 to push the rod 51, as shown in
FIG. 8.
[0052] The rod 51 pushed by the movable linking member 43 causes
the movable valve 50 to move forward against the energizing force
by the coil spring 63, together with the sealing ring 62 mounted on
the movable valve 50, so that the movable valve 50 shifts the gas
leading passage 58 to be open.
[0053] Immediately after the gas leading passage 58 is made open by
the movable valve 50, gas discharged from the pressure accumulating
chamber 57 is supplied through the gas leading passage 58 and the
connecting passage 59 to the bullet shooting gas passage 61
extending to the bullet holding chamber 23. The gas which is
supplied through the gas leading passage 58 made open by the
movable valve 50 to the bullet shooting gas passage 61 exerts high
pressure of gas to the sham bullet BB put in the bullet holding
chamber 23. Thereby, the sham bullet BB put in the bullet holding
chamber 23 is caused by the high pressure of gas exerted thereto to
move from the bullet holding chamber 23 into the barrel 22 so as to
be shot from the bullet holding chamber 23.
[0054] As described above, the hammer 24 which is operative to
cause the knocking portion 24B thereof to strike the rear end
portion 43A of the movable linking member 43 for moving the movable
linking member 43 forward, is fixed in position by the rear end
portion 32A of the slider 32 which comes into contact with the
portion higher than the knocking portion 24B of the hammer 24 to be
kept in the decocked position. In this condition, a rocking member
65 provided below the rod 51 constituting the movable valve 50 is
moved upward by a coil spring 66 to engage with the rear portion of
the rod 51 so as to keep the movable valve 50 in the position for
making the gas leading passage 58 open, as shown in FIG. 8.
[0055] After that, for example, a gas blow-back operation is
performed and the slider 32 is moved backward by the pressure of
gas. With the backward movement of the slider 32, the hammer 24 is
rotated by the rear end portion 32A of the slider 32 in the b
direction against the energizing force transmitted thereto through
the hammer strut 40 from the hammer spring 38. Thereby, the movable
linking member 43 is moved backward under the guidance of the axis
42 engaging the slotted hole 43B by the coil spring 47 so that the
front end portion 43C of the movable linking member 43 is released
from the condition for pushing forward the rear end portion of the
rod 51 constituting the movable valve 50.
[0056] In this condition, the movable valve 50 is kept in the
position for making the gas leading passage 58 open by the rocking
member 65 engaging with the rear portion of the rod 51 until the
slider 32 moves backward by a predetermined distance. When the
slider 32 has moved backward by the predetermined distance, the
rocking member 65 is pushed downward against the energizing force
by the coil spring 66 by means of a predetermined member (not shown
in the drawings) engaging with slider 32 to be released from the
engagement with the rear portion of the rod 51 constituting the
movable valve 50. As a result, the movable valve 50 is moved
backward by the coil spring 63 to return to the position for making
the gas leading passage 58 closed.
[0057] The movable member 60 is also moved backward together with
the slider 32 moving backward. Then, the pressure of gas acting on
the slider 32 is rapidly reduced to the atmospheric pressure before
the slider 32 reaches the most retreated position and the slider 32
is further moved backward to reach the most retreated position with
the force of inertia. Just after the slider 32 has reached the most
retreated position, the slider 32 is moved forward, together with
the movable member 60, by a coil spring (not shown in the drawings)
to return to the reference position. When the slider 32 returns to
the reference position from the most retreated position, the
movable member 60 which is moved forward with the forward movement
of the slider 32 is operative to supply the bullet holding chamber
23 with the next sham bullet BB.
[0058] As describe above, the hammer 24 is rotated in the b
direction to the cocked position by the rear end portion 32A of the
slider 32 moving backward to the most retreated position, as shown
in FIG. 5, for making a preparation for shooting the next sham
bullet BB.
[0059] When the hammer 24 is shifted to the decocked position from
the cocked position without shooting the shame bullet BB, under the
situation in which the upper end portion 44A of the rotary lever 44
is released from the engagement with the lower portion of the
hammer 24, the hammer 24 put in the cocked position is rotated
manually at low speed in the a direction with the center of
rotation on the axis 37, as shown in FIG. 9. With such low speed
rotation of the hammer 24 in the a direction from the cocked
position, the movable linking member 43 is also released from the
engagement with the lower portion of the hammer 24 so as not to be
pushed up by the lower portion of the hammer 24.
[0060] Then, the movable linking member 43 forced to move downward
by the coil spring 48 rotates downward with the center of rotation
on the axis 42 to reach the lower position as shown in FIG. 9
without being interrupted by the hammer 24 which is rotated at the
low speed. After that, the hammer 24 is continuously rotated
manually at the low speed in the a direction toward the decocked
position and the rear end portion 43A of the movable linking member
43 put in the lower position enters into the opening 24A, which is
formed in the lower portion of the hammer 24 to be positioned below
the knocking portion 24B, to engage with the same, as shown in FIG.
9.
[0061] Accordingly, when the hammer 24 having been rotated in the a
direction from the cocked position as shown in FIG. 9 reaches the
decocked position, such a situation that the movable linking member
43 is pushed forward by the hammer 24 is not brought about.
Consequently, the movable linking member 43 is kept in the lower
position without moving forward and thereby the front end portion
43C of the movable linking member 43 does not push the rear end
portion of the rod 51 constituting the movable valve 50.
[0062] As a result, the hammer 24 is put in the decocked position
and the movable valve 50 keeps the gas leading passage closed, as
shown in FIG. 4, so that the supply of gas from the pressure
accumulating chamber 57 through the gas leading passage 58 and the
connecting passage 59 to the bullet holding chamber 23 is not
carried out and therefore the sham bullet BB put in the bullet
holding chamber 23 is not shot. That is, the hammer 24 put in the
cocked position is shifted to be put in the decocked position
without shooting the sham bullet BB.
[0063] When the hammer 24 is put in the decocked position, as shown
in FIG. 4, the rear end portion 43A of the movable linking member
43 engages with the opening 24A formed in the lower portion of the
hammer 24 and the rear end portion 32A of the slider 32 is in
contact with the upper portion of the hammer 24. The rear end
portion 32A of the slider 32 functions to position mechanically the
hammer 24 in the decocked position.
[0064] Accordingly, the hammer 24 is subjected to the positioning
by the rear end portion 32A of the slider 32 to be kept in the
decocked position with certainty, so that, even if a relatively
large pushing force is exerted to the hammer 24 from behind, such a
situation that the hammer 24 pushes undesirably the movable linking
member 43 to cause the movable valve 50 to make the gas leading
passage 58 open undesirably is surely avoided.
[0065] FIG. 10 shows an example of a gas powered toy gun to which a
second embodiment of gas supplying mechanism in a gas powered toy
gun according to the present invention is applied.
[0066] Referring to FIG. 10, the gas powered toy gun to which the
second embodiment of gas supplying mechanism according to the
present invention is applied has a body 80 in which a trigger 71, a
barrel 72, a bullet holding chamber 73 positioned in a rear portion
of the barrel 72, a hammer 74 and a grip 75 are provided, a case 81
held to be detachable in the grip 75, and a slider 82 provided to
be movable along the barrel 72. The bullet holding chamber 73 is
formed in a tubular member 73A which is made of elastic frictional
material, such as rubber, and put in the inside of the rear portion
of the barrel 72.
[0067] In the grip 75, a movable bar member 83 extending backward
from the trigger 71 is provided to be movable in the direction
along the barrel 72. The trigger 71 is attached with an axis 84 to
the body 80. When triggering, the trigger 71 is rotated backward
from an operational initial position with the center of rotation on
the axis 84 and the movable bar member 83 is moved backward by
means of the rotation of the trigger 71.
[0068] The slider 82 is attached to be movable to a portion of the
body 80 where the barrel 72 is provided. When the trigger 71 is put
in the operational initial position, the slider 82 is put in a
reference position with a front end thereof positioned to be close
to a front end of the portion of the body 80 where the barrel 72 is
provided. Further, the slider 82 is forced by a coil spring (not
shown in the drawings) mounted on the body 80 toward the outside in
front of the body 80.
[0069] The hammer 74 has an upper portion with which a rear end
portion 82A of the slider 82 comes selectively into contact and a
lower portion which is provided with a plurality of engaging steps
and attached to be rotatable with an axis 85 to the rear end
portion of the body 80. An upper end portion of a hammer strut 87
which is forced upward by a hammer spring 86 provided in a lower
portion of the grip 75 engages with the lower portion of the hammer
74, and thereby the hammer 74 is forced upward through the hammer
strut 87 by the hammer spring 86 to cause the upper portion thereof
to rotate in a direction toward the rear end portion 82A of the
slider 82 as indicated by an arrow a in FIG. 10 (a direction).
[0070] A hole having its bottom is provided in a mid portion of the
hammer 74 to open toward the outside in front of the hammer 74 and
a pushing pin member 89 is provided, together with a coil spring
88, to be movable in the hole in such a manner that the pushing pin
member is forced forward by the coil spring 88, as shown in FIG.
11. Further, a movable linking member 90 is attached rotatably with
an axis 91 to the mid portion of the hammer 74 and the pushing pin
member 89 provided in the mid portion of the hammer 74 is in
contact with a rear end portion 90A of the movable linking member
90, as shown also in FIG. 11.
[0071] In an initial condition wherein the case 81 is inserted into
the grip 75 as shown in FIG. 10, the hammer 74 is so positioned
that the rear end portion 82A of the slider 82 is in contact with
the upper portion of the hammer 74 to fix the hammer 74 in its
position. The hammer 74 thus positioned is put in a decocked
position.
[0072] A rotary lever 92 is attached rotatably with an axis 93 to
the body 80 to be positioned below the movable linking member 90.
This rotary lever 92 extends upward from the axis 93 so as to
position an upper end portion 92A thereof to be close the lower
portion of the hammer 74. An upper end portion 92A of the rotary
lever 92 is able to engage with the lower portion of the hammer 74.
A lower end portion of the hammer spring 86 is in engagement with a
lower portion of the rotary lever 92 so that the rotary lever 92 is
forced by the hammer spring 86 to be put in tendency of rotating
backward with the center of rotation on the axis 93.
[0073] A pin member 94 is planted on the body 80 in the vicinity of
the movable linking member 90. The movable linking member 90, with
the rear end portion 90A of which the pushing pin member 89
provided in the hammer 74 is in contact, is able to be positioned
for causing an upper side portion thereof to be in contact with the
pin member 94 from the lower side, as shown in FIG. 11.
[0074] The case 81 is inserted into the grip 75 through an opening
provided at a lower end portion of the grip 75 and a bottom portion
of the case 81 is engaged with the lower end portion of the grip 75
so that the case 81 is held in the grip 75, as shown in FIG. 10.
The case 31 is provided therein with a magazine 96 for containing
sham bullets BB, in which a coil spring 95 is provided for pushing
up the sham bullets BB, a pressure accumulating chamber 97 which is
charged with, for example, liquefied gas, a gas leading passage 98
extending from the pressure accumulating chamber 97, a movable
valve 99 provided in relation to the gas leading passage 98 and a
connecting passage 100 connected with the gas leading passage 98.
The connecting passage 100 is provided for connecting the gas
leading passage 98 with a bullet shooting gas passage 102, which is
formed in a movable member 101 provided in the slider 82 to reach
the bullet holding chamber 73, in dependence on the position of the
movable member 101.
[0075] The movable valve 99 is provided to be movable to the gas
leading passage 98 for controlling the gas leading passage 98 to be
open and closed selectively in dependence on its position. A
sealing ring 105 is mounted on the movable valve 99, a portion of
which is shaped into a rod 106, as shown in FIG. 11. Then, the
movable valve 99 thus constituted is normally positioned to make
the gas leading passage 98 closed with an energizing force by a
coil spring 107 mounted on the rod 106, as shown in FIGS. 10 and
11. The gas leading passage 98 and the connecting passage 100 are
formed in an upper portion of the case 81 which is placed in the
grip 75 and therefore the movable valve 99 provided to be movable
to the gas leading passage 98 is also provided in the upper portion
of the case 81 above the pressure accumulating chamber 97 held in
the grip 75.
[0076] In the condition wherein the slider 82 is put in the
reference position and the case 81 is held in the grip 75 in such a
manner as shown in FIG. 10, the gas leading passage 98, which is
formed in the upper portion of the case 81 above the pressure
accumulating chamber 97 in the grip 75 and closed by the movable
valve 99, is connected, through the connecting passage 100 formed
also in the upper portion of the case 81 above the pressure
accumulating chamber 97 in the grip 75, with the bullet shooting
gas passage 102 extending to the bullet holding chamber 73. Under
such a condition, the hammer 74 is put in the decocked
position.
[0077] In the gas powered toy gun shown in FIG. 10 and constituted
as described above, a portion including the hammer 74, the rear end
portion 82A of the slider 82, the movable linking member 90, the
gas leading passage 98, the movable valve 99 and the connecting
passage 100 constitutes a second embodiment of the gas supplying
mechanism in the gas powered toy gun according to the present
invention.
[0078] Then, in the gas powered toy gun shown in FIG. 10, under a
condition wherein the case 81 has been held in the grip 75 and the
sham bullet BB has not been supplied yet to the bullet holding
chamber 73, the slider 82 is once moved backward together with the
movable member 101 manually from the reference position and then
released to be moved forward by the coil spring not shown in FIG.
10 so as to return together with the movable member 101 to the
reference position.
[0079] During such movements of the slider 82, the movable member
101 which makes the upper end portion of the magazine 96 closed is
moved backward together with the slider 82 moving backward, so that
the upper end portion of the magazine 96 is made open and one of
the sham bullets BB at the top in the magazine 96 is pushed up by
the coil spring 95 into the upper end portion of the magazine 96 to
be held therein.
[0080] When the slider 82 is manual ly moved backward, the hammer
74 is pushed to rotate by the rear end portion 82A of the slider 82
from the position shown in FIGS. 10 and 11 against the energizing
force transmitted through the hammer strut 87 from the hammer
spring 86 in a direction indicated by an arrow b in FIG. 10 (b
direction) and opposite to the a direction, and thereby, the rotary
lever 92 is slightly rotated in the counterclockwise direction
following the energizing force by the hammer spring 86. After that,
the hammer 74 having rotated in the b direction reaches a cocked
position with the pushing pin member 89 provided in the mid portion
of the hammer 74 to be in contact with the rear end portion 90A of
the movable linking member 90, so that the hammer 74 and the rotary
lever 92 are mutually fixed in position and the hammer 74 is kept
in the cocked position, as shown in FIG. 12.
[0081] Under such a condition, although the rear end portion 90A of
the movable linking member 90 which is attached to be rotatable
with the axis 91 to the hammer 74 is pushed by the pushing pin
member 89 so that the movable linking member 90 is put in tendency
of rotating with the center of rotation on the axis 91 for causing
a front end portion 90B thereof to move upward, the upper side of
the front end portion 90B of the movable linking member 90 is in
contact with the pin member 94, as shown in FIG. 12, so as to
prevents the movable linking member 90 from rotating.
[0082] Then, when the slider 82 moves forward after having moved
backward once, the movable member 101 is also moved forward
together with the slider 82 moving forward so as to cause the front
portion thereof to come into the upper end portion of the magazine
96 and to carry the sham bullet BB in the upper end portion of the
magazine 96 to the bullet holding chamber 73. On that occasion, the
movable member 101 is operative again to close the upper end
portion of the magazine 96 and to cause the front portion thereof
to be coupled with to the bullet holding chamber 73 formed by the
tubular member 73A so that the movable member 101 is fixed in
position. As a result, the sham bullet BB is supplied to the bullet
holding chamber 73 to be put in the same, as shown in FIG. 10.
[0083] When the slider 82 has returned to the reference position
after its forward movement for supplying the bullet holding chamber
73 with the sham bullet BB, the gas leading passage 98 which is
closed by the movable valve 99 is again connected through the
connecting passage 100 with the bullet shooting gas passage 102
extending to the bullet holding chamber 73.
[0084] After the sham bullet BB has been supplied to the bullet
holding chamber 73 as described above and shown in FIG. 10, when
the trigger 71 is pulled, the movable bar member 83 is moved
backward to cause the rotary lever 92 to rotate counterclockwise
slightly with the center of rotation on the axis 93 against the
energizing force by the hammer spring 86. Consequently, the upper
end portion 92A of the rotary lever 92 is released from the
engagement with the lower portion of the hammer 74, as shown in
FIG. 13, so that the hammer 74 is released from the positional
restriction by the rotary lever 92.
[0085] The hammer 74 released from the positional restriction by
the rotary lever 92 is rotated by the hammer spring 86 at the high
speed in the a direction with the center of rotation on the axis
37. With this high speed rotation of the hammer 74, the movable
linking member 90 attached with the axis 91 to the hammer 74 is
also rotated counterclockwise at high speed. Accordingly, the
movable linking member 90 is put in a lower position for causing
the front end portion 90B thereof to go away downward from the pin
member 94 with the force of inertia and come into contact with the
rear end portion of the rod 106 constituting the movable valve 99,
as shown in FIG. 14.
[0086] The hammer 74 having rotated in the a direction at the high
speed with the center of rotation on the axis 85 reaches the
decocking position in which the rear end portion 82A of the slider
82 is in contact with the upper portion of the hammer 74 and the
movable linking member 90 having the front end portion 90B in
contact with the rear end portion of the rod 106 constituting the
movable valve 99 is operative to push the rod 106 for causing the
movable valve 99 to move forward, as shown in FIG. 15. With the
forward movement of the movable valve 99, the sealing ring 105
mounted on the movable valve 99 is moved forward, so that the
movable valve 99 shifts the gas leading passage 98 to be open.
[0087] Immediately after the gas leading passage 98 is made open by
the movable valve 99, gas discharged from the pressure accumulating
chamber 97 is supplied through the gas leading passage 98 and the
connecting passage 100 to the bullet shooting gas passage 102
extending to the bullet holding chamber 73. The gas which is
supplied through the gas leading passage 98 made open by the
movable valve 99 to the bullet shooting gas passage 102 exerts high
pressure of gas to the sham bullet BB put in the bullet holding
chamber 73. Thereby, the sham bullet BB put in the bullet holding
chamber 73 is caused by the high pressure of gas exerted thereto to
move from the bullet holding chamber 73 into the barrel 72 so as to
be shot from the bullet holding chamber 73.
[0088] As described above, when the hammer 74 is rotated at the
high speed in the a direction to be shifted to the decocked
position from the cocked position and thereby the movable valve 99
is pushed by the movable linking member 90 attached with the axis
91 to the hammer 74 to move forward for making the gas leading
passage open, a rocking member 110 provided below the rod 106
constituting the movable valve 99 is moved upward by a coil spring
111 to engage with the rear portion of the rod 106 so as to keep
the movable valve 99 in the position for making the gas leading
passage 98 open, as shown in FIG. 15.
[0089] After that, for example, a gas blow-back operation is
performed and the slider 82 is moved backward by the pressure of
gas. With the backward movement of the slider 82, the hammer 74 is
rotated by the rear end portion 82A of the slider 82 in the b
direction shown in FIG. 15 against the energizing force transmitted
thereto through the hammer strut 87 from the hammer spring 86.
Thereby, the movable linking member 90 attached with the axis 91 to
the hammer 74 is rotated clockwise in FIG. 15 so that the front end
portion 90B of the movable linking member 90 is released from the
condition for pushing forward the rear end portion of the rod 106
constituting the movable valve 99.
[0090] In this condition, the movable valve 99 is kept in the
position for making the gas leading passage 98 open by the rocking
member 110 engaging with the rear portion of the rod 106 until the
slider 82 moves backward by a predetermined distance. When the
slider 82 has moved backward by the predetermined distance, the
rocking member 110 is pushed downward against the energizing force
by the coil spring 111 by means of a predetermined member (not
shown in the drawings) engaging with the slider 82 to be released
from the engagement with the rear portion of the rod 106
constituting the movable valve 99. As a result, the movable valve
99 is moved backward by a coil spring 107 to return to the position
for making the gas leading passage 98 closed.
[0091] The movable member 101 is also moved backward together with
the slider 82 moving backward. Then, the pressure of gas acting on
the slider 82 is rapidly reduced to the atmospheric pressure before
the slider 82 reaches the most retreated position and the slider 82
is further moved backward to reach the most retreated position with
the force of inertia. Just after the slider 82 has reached the most
retreated position, the slider 82 is moved forward, together with
the movable member 101, by a coil spring (not shown in the
drawings) to return to the reference position. When the slider 82
returns to the reference position from the most retreated position,
the movable member 101 which is moved forward with the forward
movement of the slider 82 is operative to supply the bullet holding
chamber 73 with the next sham bullet BB.
[0092] As describe above, the hammer 74 is rotated in the b
direction to the cocked position by the rear end portion 82A of the
slider 82 moving backward to the most retreated position, as shown
in FIG. 12, for making a preparation for shooting the next sham
bullet BB.
[0093] When the hammer 74 is shifted to the decocked position from
the cocked position as shown in FIG. 12 without shooting the shame
bullet BB, under the situation in which the upper end portion 92A
of the rotary lever 92 is released from the engagement with the
lower portion of the hammer 74, the hammer 74 put in the cocked
position is rotated manually at low speed in the a direction with
the center of rotation on the axis 85, as shown in FIG. 16. With
such low speed rotation of the hammer 74 in the a direction from
the cocked position, the movable linking member 90 attached with
the axis 91 to the hammer 74 is also rotated counterclockwise in
FIG. 16 at the low speed. Since the movable linking member 90 is
rotated at the low speed and therefore the force of inertia acting
upon the movable linking member 90 is so small, the movable linking
member 90 having the rear end portion 90A thereof pushed by the
pushing pin member 89 is rotated clockwise in FIG. 16 with the
center of rotation on the axis 91 relatively to the hammer 74 so as
to be kept in the condition wherein the upper side of the front end
portion 90B of the movable linking member 90 is in contact with the
pin member 94 from the lower side. Consequently, the front end
portion 90B of the movable linking member 90 does not come into
contact with the rear end portion of the rod 106 constituting the
movable valve 99, as shown in FIG. 16.
[0094] When the hammer 74 having been rotated manually at the low
speed in the a direction with the center of rotation on the axis 85
reaches the decocked position in which the rear end portion 82A of
the slider 82 is in contact with the upper portion of the hammer
74, as shown in FIG. 11, the movable linking member 90 having the
rear end portion 90A thereof with which the pushing pin member 89
is in contact and the front end portion 90B thereof, the upper side
of which is in contact with the pin member 94, is put in an upper
position for causing the front end portion 90B not to come into
contact with the rear end portion of the rod 106 constituting the
movable valve 99. Accordingly, such a situation that the movable
linking member 90 moves the movable valve 99 forward is not brought
about when the hammer 74 has reached the decocked position as shown
in FIG. 11.
[0095] As a result, the hammer 74 is put in the decocked position
and the movable valve 99 keeps the gas leading passage 98 closed,
as shown in FIG. 11, so that the supply of gas from the pressure
accumulating chamber 97 through the gas leading passage 98 and the
connecting passage 100 to the bullet holding chamber 73 is not
carried out and therefore the sham bullet BB put in the bullet
holding chamber 73 is not shot. That is, the hammer 74 put in the
cocked position is shifted to be put in the decocked position
without shooting the sham bullet BB.
[0096] When the hammer 74 is put in the decocked position, as shown
in FIG. 11, the rear end portion 82A of the slider 82 is in contact
with the upper portion of the hammer 74 to position the hammer 74
in the decocked position. Accordingly, the hammer 24 is subjected
to the mechanical positioning by the rear end portion 32A of the
slider 32 to be kept in the decocked position with certainty, so
that, even if a relatively large pushing force is exerted to the
hammer 74 from behind, such a situation that the hammer 74 pushes
undesirably the movable linking member 90 to cause the movable
valve 99 to make the gas leading passage 98 open undesirably is
surely avoided.
[0097] The structure including the hammer 24, the rear end portion
32A of the slider 32, the movable linking member 43, the gas
leading passage 58, the connecting passage 59 and the movable valve
50 in the first embodiment shown in FIG. 3 and the structure
including the hammer 74, the rear end portion 82A of the slider 82,
the movable linking member 90, the gas leading passage 98, the
connecting passage 100 and the movable valve 99 in the second
embodiment shown in FIG. 10 are provided for representing just
examples of the gas supplying mechanism in the gas powered toy gun
according to the present invention and it should be understood that
the present invention is not limited to these structures.
* * * * *