U.S. patent application number 11/048818 was filed with the patent office on 2006-08-03 for shooting structure of a paint bullet gun.
Invention is credited to Bao Shyan Lai.
Application Number | 20060169265 11/048818 |
Document ID | / |
Family ID | 36755196 |
Filed Date | 2006-08-03 |
United States Patent
Application |
20060169265 |
Kind Code |
A1 |
Lai; Bao Shyan |
August 3, 2006 |
Shooting structure of a paint bullet gun
Abstract
A shooting structure of a paint bullet gun, including a body
section and a handle. A gunlock and a shot control unit are
disposed in the body section. An air source serves to fill air into
the body section. A trigger unit is disposed in the handle for
controlling the shot control unit which controls the gunlock to
reciprocally move. An activating chamber is formed in the body
section. The gunlock is slidably disposed in the activating
chamber. The activating chamber has an intake passage communicating
with the air source. A space is defined between the bar body and
inner wall of the activating chamber. The space is movable along
with the gunlock to be aligned with the intake passage. The gunlock
is formed with an internal shooting air reserving room and more
than one exhaust passage communicating therewith. The shooting air
reserving room has several intakes communicating with the space. A
controlling valve is disposed between the exhaust passage and the
shooting air reserving room. The controlling valve is movable along
with the gunlock to control communication between the shooting air
reserving room and the exhaust passage.
Inventors: |
Lai; Bao Shyan; (Taichung
City, TW) |
Correspondence
Address: |
ROSENBERG, KLEIN & LEE
3458 ELLICOTT CENTER DRIVE-SUITE 101
ELLICOTT CITY
MD
21043
US
|
Family ID: |
36755196 |
Appl. No.: |
11/048818 |
Filed: |
February 3, 2005 |
Current U.S.
Class: |
124/71 |
Current CPC
Class: |
F41B 11/723 20130101;
F41B 11/722 20130101; F41B 11/62 20130101 |
Class at
Publication: |
124/071 |
International
Class: |
F41B 11/00 20060101
F41B011/00 |
Claims
1. A shooting structure of a paint bullet gun, comprising a body
section and a handle, a gunlock and a shot control unit being
disposed in the body section, an air source serving to fill air
into the body section, a trigger unit being disposed in the handle
for controlling the shot control unit which controls the gunlock to
reciprocally move, whereby a paint bullet can be controllably
dropped into the body section and the air of the air source can be
controlled to shoot the paint bullet, said shooting structure being
characterized in that: an activating chamber is formed in the body
section, one end of the activating chamber being connected with a
barrel, the gunlock being slidably disposed in the activating
chamber, a bullet-dropping port being disposed on the activating
chamber near the barrel, the activating chamber having an intake
passage communicating with the air source; and the gunlock is a bar
body, a space being defined between the bar body and inner wall of
the activating chamber, the space being movable along with the
gunlock to be aligned with the intake passage, the gunlock being
formed with an internal shooting air reserving room for reserving a
certain amount of air and more than one exhaust passage
communicating with the shooting air reserving room, the shooting
air reserving room having several intakes communicating with the
space, the exhaust passage passing through the gunlock to an end
thereof, a controlling valve being disposed between the exhaust
passage and the shooting air reserving room, the controlling valve
being movable along with the gunlock to control communication
between the shooting air reserving room and the exhaust
passage.
2. The shooting structure of the paint bullet gun as claimed in
claim 1, wherein two air reservoirs are respectively parallelly
disposed on two sides of the activating chamber of the body
section, a front section of the air reservoir near the barrel
communicating with a handle pressure regulator for adjusting the
pressure coming from the air source into the air reservoir, the
intake passage communicating the activating chamber with the air
reservoir, the handle being arranged under the body section near
the handle pressure regulator, the trigger unit being disposed in
the handle corresponding to the shot control unit, the trigger unit
including a trigger, a linking plate and a spring, whereby the
trigger can drive the linking plate to control the shot control
unit.
3. The shooting structure of the paint bullet gun as claimed in
claim 2, wherein the shot control unit has a valve body and a
piston body, the body section being formed with a passage between
the activating chamber and the air reservoir in parallel thereto,
the valve body and the linking plate being accommodated in the
passage, the piston body being fixed at one end of the activating
chamber of the body section opposite to the barrel, a rear plug
body sealing the activating chamber.
4. The shooting structure of the paint bullet gun as claimed in
claim 3, wherein the valve body is formed with an internal cavity
in which a shift bar is mounted, a middle section of the valve body
being formed with several cuts communicating with the cavity, at
least one air reservoir being formed with an air duct communicating
with the cuts, whereby part of the air in the air reservoir can
enter the cavity, two ends of the cavity being respectively formed
with a first ventiduct and a second ventiduct communicating with
the interior of the piston body, the shift bar being formed with a
first plug section and a second plug section respectively
corresponding to the first and second ventiducts, one end of the
shift bar being connected with the linking plate of the trigger
unit, the trigger of the trigger unit being able to drive the shift
bar to reciprocally move within the cavity, whereby the first plug
section or the second plug section unblocks/blocks the first
ventiduct or second ventiduct, the piston body being formed with an
internal receiving passage in which a piston rod with a piston
block is accommodated, a front end and a rear end of the receiving
passage respectively communicating with the first and second
ventiducts of the valve body, one end of the piston rod opposite to
the piston block being connected with the gunlock.
5. The shooting structure of the paint bullet gun as claimed in
claim 1, wherein an annular groove is formed on the body of the
gunlock, the space being defined between the annular groove and
inner wall of the activating chamber, the gunlock having a large
diameter section and a small diameter section, the annular groove
being formed on outer circumference of the large diameter section,
the shooting air reserving room being formed in the large diameter
section, the small diameter section being formed with an internal
tunnel, one end of the tunnel extending to one end of the small
diameter section opposite to the large diameter section, the other
end of the tunnel extending to a solid section at the other end of
the small diameter section adjacent to the large diameter section,
the controlling valve being disposed in the solid section, the
controlling valve having a valve rod extending through the solid
section, one end of the valve rod extending into the tunnel of the
small diameter section, the other end of the valve rod extending
into the shooting air reserving room of the large diameter section,
the solid section being formed with several exhaust passages around
the valve rod, two ends of each exhaust passage respectively
communicating with the tunnel and the shooting air reserving room,
whereby the air in the shooting air reserving room can go through
the exhaust passage into the tunnel, a plug body being fixed at one
end of the valve rod in the shooting air reserving room, the plug
body being pushed by a spring, whereby in normal state, the plug
body blocks the exhaust passages, two cuts being respectively
formed on two sides of the tunnel in parallel to the valve rod, a
touch rod being transversely positioned in the cuts, two ends of
the touch rod being fixed on the inner wall of the activating
chamber.
6. The shooting structure of the paint bullet gun as claimed in
claim 5, wherein several O-rings are inlaid in outer circumference
of the large diameter section of the gunlock on two sides of the
annular groove to airtight abut against inner wall of the
activating chamber for avoiding leakage of air.
Description
BACKGROUND OF THE INVENTION
[0001] The present invention is related to a shooting structure of
a paint bullet gun. In the paint bullet gun, a gunlock is
controlled to reciprocally move for shooting the paint bullet. A
certain amount of compressed air is reserved in a shooting air
reserving room of the gunlock and then the air is released for
shooting the paint bullet.
[0002] The existent paint bullet gun has a mechanical type of
trigger unit for controlling a striker and a gunlock for shooting a
paint bullet. Referring to FIG. 5, the paint bullet gun 6 has a
body section 60 formed with an upper activating chamber 61 and a
lower activating chamber 62 in parallel to each other. A vent 601
is formed between the upper and lower activating chambers 61, 62.
The body section 60 has an intake section 602 for guiding
high-pressure air into the upper and lower activating chambers 61,
62 as power source. A bullet-loading section 603 is disposed on the
body section 60 for loading a paint bullet into the upper
activating chamber 61. A barrel 604 is connected with one end of
the upper activating chamber 61 near the bullet-loading section
603. A gunlock 63 is slidably disposed at the other end of the
upper activating chamber 61.
[0003] A valve assembly 64 is disposed in the lower activating
chamber 62 corresponding to the vent 601. A rear plug body 65 is
disposed at one end of the lower activating chamber 62 distal from
the intake section 602. A striker 66 is slidably disposed between
in the lower activating chamber 62 between the valve assembly 64
and the rear plug body 65. The body section 60 is formed with a
communicating tunnel 605 between the upper and lower activating
chambers 61, 62 corresponding to the striker 66 and the gunlock 63.
A pin 607 is passed through the communicating tunnel 605 to
drivingly connect the striker 66 with the gunlock 63.
[0004] A handle 68 is disposed under the body section 60 near the
lower activating chamber 62. A trigger unit 69 is disposed in the
handle 68 corresponding to the striker 66. The trigger unit 69
serves to locate and release the striker 66. A push spring 661 is
disposed between the striker 66 and the rear plug body 65. When the
trigger unit 69 releases the striker 66, the push spring 661 pushes
the striker 66 to drive and slide the gunlock 63 for blocking the
bullet-loading section 603 so as to avoid leakage of air. Also, it
is prevented that a second paint bullet drops into the upper
activating chamber 61 so that clog is avoided. Furthermore, the
striker 66 triggers the valve assembly 64, permitting high-pressure
air to enter the upper and lower activating chambers 61, 62 for
shooting the paint bullet out of the barrel 604. Part of the
high-pressure air will pass through the valve assembly 64 to push
and restore the striker 66 back to its home position where the
striker 66 is located by the trigger unit 69.
[0005] In the above structure, the trigger unit 69 serves to chuck
or release the striker 66 for driving the gunlock 63 and
controlling opening/closing of the valve assembly 64. Therefore, it
is necessary to respectively arrange the gunlock 63 for
unblocking/blocking the bullet-loading section 603 and the striker
66 for controlling the high-pressure air. Moreover, it is necessary
to arrange the valve assembly 64 for controlling the air and the
push spring 661 and the pin 607. Accordingly, the structure of the
paint bullet gun is complicated. This leads to high processing and
assembling cost. In addition, the structure includes numerous
components so that the ratio of failure of the paint bullet gun is
increased.
SUMMARY OF THE INVENTION
[0006] It is therefore a primary object of the present invention to
provide a shooting structure of a paint bullet gun. In the paint
bullet gun, a gunlock is controlled to reciprocally move for
shooting the paint bullet. A certain amount of air is reserved in a
shooting air reserving room of the gunlock and then the air is sent
into the gunlock for shooting the paint bullet. Only one single
gunlock is used to unblock/block the bullet-dropping port and
control the intake of the air going into the air duct for shooting
the paint bullet. The structure of the present invention is
simplified so that the ratio of failure of the paint bullet gun is
reduced. Also, the manufacturing cost for the paint bullet gun is
greatly lowered.
[0007] According to the above object, the shooting structure of the
paint bullet gun of the present invention includes a body section
and a handle. A gunlock and a shot control unit are disposed in the
body section. An air source serves to fill air into the body
section. A trigger unit is disposed in the handle for controlling
the shot control unit which controls the gunlock to reciprocally
move, whereby a paint bullet can be controllably dropped into the
body section and the air of the air source can be controlled to
shoot the paint bullet.
[0008] An activating chamber is formed in the body section. One end
of the activating chamber is connected with a barrel. The gunlock
is slidably disposed in the activating chamber. A bullet-dropping
port is disposed on the activating chamber near the barrel. The
activating chamber has an intake passage communicating with the air
source.
[0009] The gunlock is a bar body. A space is defined between the
bar body and inner wall of the activating chamber. The space is
movable along with the gunlock to be aligned with the intake
passage. The gunlock is formed with an internal shooting air
reserving room for reserving a certain amount of air and more than
one exhaust passage communicating with the shooting air reserving
room. The shooting air reserving room has several intakes
communicating with the space. The exhaust passage passes through
the gunlock to an end thereof. A controlling valve is disposed
between the exhaust passage and the shooting air reserving room.
The controlling valve is movable along with the gunlock to control
communication between the shooting air reserving room and the
exhaust passage.
[0010] The present invention can be best understood through the
following description and accompanying drawings wherein:
BRIEF DESCRIPTION OF THE DRAWINGS
[0011] FIG. 1 is a sectional assembled view of the present
invention;
[0012] FIG. 1A is a partially sectional view taken along line A-A
of FIG. 1, showing the communication between the air reservoir and
the activating chamber;
[0013] FIG. 1B is a partially sectional view taken along line B-B
of FIG. 1, showing the communication between the air reservoir and
the passage;
[0014] FIG. 2 is a sectional view showing the shooting operation of
the present invention in a first stage;
[0015] FIG. 3 is a sectional view showing the shooting operation of
the present invention in a second stage;
[0016] FIG. 4 is a sectional view showing the shooting operation of
the present invention in a third stage; and
[0017] FIG. 5 is a sectional view of a conventional mechanical
paint bullet gun.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
[0018] Please refer to FIGS. 1 to 1B. The shooting structure of the
paint bullet gun of the present invention includes a body section 1
and a handle 17. An activating chamber 11 and more than one air
reservoir 12 are parallelly arranged in the body section 1. In this
embodiment, two air reservoirs 12 are respectively parallelly
disposed on two sides of the activating chamber 11 of the body
section 1.
[0019] One end of the activating chamber 11 is connected with a
barrel 13. A gunlock 2 is accommodated in the other end of the
activating chamber 11. A bullet-dropping port 111 is disposed on
the activating chamber 11 near the barrel 13, whereby a paint
bullet 5 can be dropped and loaded into the activating chamber 11.
An intake passage 15 is formed between the activating chamber 11
and the air reservoir 12 to communicate the activating chamber 11
with the air reservoir 12. A handle pressure regulator 121 is
disposed under front section of the air reservoir 12 for adjusting
the pressure coming from an air source into the air reservoir 12.
In addition, a shot control unit 3 is disposed in the body section
1 for driving the gunlock 2 to move back and forth.
[0020] The gunlock 2 is a bar body. An annular groove 21 is formed
on the body of the gunlock 2. A space 21a is defined between the
annular groove 21 and inner wall of the activating chamber 11. The
space 21a is movable along with the gunlock 2 to be aligned with
the intake passage 15, whereby the air can go from the air
reservoir 12 into the space 21a. The gunlock 2 is formed with an
internal shooting air reserving room 22 for reserving a certain
amount of air and more than one exhaust passage 23 communicating
with the shooting air reserving room 22. The shooting air reserving
room 22 has several intakes 221 communicating with the space 21a,
whereby the air entering the space 21a can go into the shooting air
reserving room 22 to be reserved therein. The exhaust passage 23
passes through the gunlock 2 to an end thereof. A controlling valve
24 is disposed between the exhaust passage 23 and the shooting air
reserving room 22. The controlling valve 24 is movable along with
the gunlock 2 to control communication between the shooting air
reserving room 22 and the exhaust passage 23.
[0021] In this embodiment, the gunlock 2 has a large diameter
section 25 and a small diameter section 26. The annular groove 21
is formed on outer circumference of the large diameter section 25.
The shooting air reserving room 22 is formed in the large diameter
section 25. The small diameter section 26 is formed with an
internal tunnel 261. One end of the tunnel 261 extends to one end
of the small diameter section 26 opposite to the large diameter
section 25. The other end of the tunnel 261 extends to a solid
section 262 at the other end of the small diameter section 26
adjacent to the large diameter section 26. The controlling valve 24
is disposed in the solid section 262. The controlling valve 24 has
a valve rod 241 extending through the solid section 262. One end of
the valve rod 241 extends into the tunnel 261 of the small diameter
section 26. The other end of the valve rod 241 extends into the
shooting air reserving room 22 of the large diameter section 25.
The solid section 262 is formed with several exhaust passages 23
around the valve rod 241. Two ends of each exhaust passage 23
respectively communicate with the tunnel 261 and the shooting air
reserving room 22. The air in the shooting air reserving room 22
can go through the exhaust passage 23 into the tunnel 261. A plug
body 242 is fixed at one end of the valve rod 241 in the shooting
air reserving room 22. The plug body 242 is pushed by a spring 243,
whereby in normal state, the plug body 242 blocks the exhaust
passages 23. Two cuts 263 are respectively formed on two sides of
the tunnel 261 in parallel to the valve rod 241. A touch rod 264 is
transversely positioned in the cuts 263. Two ends of the touch rod
264 are fixed on the inner wall of the activating chamber 11.
Several O-rings 27 are inlaid in outer circumference of the large
diameter section 25 of the gunlock 2 to airtight abut against inner
wall of the activating chamber 11 for avoiding leakage of air.
[0022] The handle 17 is arranged near the handle pressure regulator
121. A trigger unit 18 is disposed in the handle 17 corresponding
to the shot control unit 3 for controlling the same. In this
embodiment, the trigger unit 18 includes a trigger 181, a linking
plate 182 and a spring 183. The trigger 181 can drive the linking
plate 182 to control the shot control unit 3.
[0023] The shot control unit 3 has a valve body 30 and a piston
body 40. In this embodiment, the body section 1 is formed with a
passage 19 between the activating chamber 11 and the air reservoir
12 in parallel thereto. The valve body 30 and the linking plate 182
are accommodated in the passage 19. The valve body 30 is formed
with an internal cavity 32 in which a shift bar 31 is mounted. A
middle section of the valve body 30 is formed with several cuts 34
communicating with the cavity 32. The air reservoir 12 is formed
with an air duct 122 communicating with the cuts 34, whereby part
of the air in the air reservoir 12 can enter the cavity 32. Two
ends of the cavity 32 are respectively formed with a first
ventiduct 33 and a second ventiduct 35 communicating with the
interior of the piston body 40. The shift bar 31 is formed with a
first plug section 311 and a second plug section 312 respectively
corresponding to the first and second ventiducts 33, 35. One end of
the shift bar 31 is connected with the linking plate 182 of the
trigger unit 18. The trigger 181 of the trigger unit 18 can drive
the shift bar 31 to reciprocally move within the cavity 32, whereby
the first plug section 311 or the second plug section 312
unblocks/blocks the first ventiduct 33 or second ventiduct 35.
Accordingly, the air in the air reservoir 12 is controllable to
enter the piston body 40, making the piston body 40 drive the
gunlock 2 to reciprocally move.
[0024] The piston body 40 is fixed at one end of the activating
chamber 11 of the body section 1 opposite to the barrel 13. A rear
plug body 16 seals the activating chamber 11. The piston body 40 is
formed with an internal receiving passage 41 in which a piston rod
42 with a piston block 421 is accommodated. A front end and a rear
end of the receiving passage 41 respectively communicate with the
first and second ventiducts 33, 35 of the valve body 30. One end of
the piston rod 42 opposite to the piston block 421 is connected
with the gunlock 2. By means of controlling intake of the first
ventiduct 33 or second ventiduct 35 of the valve body 30, the
piston rod 42 is controllable to move forward or backward.
Accordingly, the gunlock 2 is drivable to move back and forth.
[0025] In normal state, that is, a ready state, as shown in FIG. 2,
the shift bar 31 of the valve body 30 of the shot control unit 3 is
controlled by the trigger unit 18 to move backward. At this time,
the first plug section 311 of the shift bar 31 unblocks the first
ventiduct 33 of the cavity 32, while the second plug section 312 of
the shift bar 31 blocks the second ventiduct 35 of the cavity 32.
After the air of the air source goes through the handle pressure
regulator 121 into the air reservoir 12, part of the air will go
through the air duct 122 and the cuts 34 into the cavity 32 and
then go through the unblocked first ventiduct 33 into the receiving
passage 41 of the piston body 40 for pushing and retreating the
piston block 421 of the piston rod 42. At this time, the piston rod
42 will drive the gunlock 2 to retreat, whereby front end of the
gunlock 2 will move backward away from the bullet-dropping port
111. Under such circumstance, a paint bullet 5 is dropped to the
front end of the gunlock 2 into a ready state. At the same time,
the space 21a defined between the annular groove 21 of the gunlock
2 and the inner wall of the activating chamber 11 will be moved
along with the gunlock 2 to the intake passage 15, whereby the air
in the air reservoir 12 will go through the intake passage 15 into
the space 21a and then go through the intake 221 into the shooting
air reserving room 22 for shooting the paint bullet 5.
[0026] When pulling the trigger 181, as shown in FIGS. 3 and 4, the
trigger 181 drives the linking plate 182 to pull the shift bar 31
in the valve body 30 forward. At this time, the first plug section
311 of the shift bar 31 blocks the first ventiduct 33 of the cavity
32, while the second plug section 312 of the shift bar 31 unblocks
the second ventiduct 35 of the cavity 32. At this time, the air
goes through the unblocked second ventiduct 35 into the receiving
passage 41 of the piston body 40 to push the piston block 421 of
the piston rod 42 forward. Accordingly, the gunlock 2 is driven by
the piston rod 42 to move forward, whereby the front end of the
gunlock 2 blocks the bullet-dropping port 111 to avoid leakage of
air and prevent a second paint bullet 5 from dropping so as to
avoid clog. When the gunlock 2 moves forward, the space 21a will be
moved along with the gunlock 2 away from the intake passage 15,
whereby the air in the air reservoir 12 is prevented from further
going into the shooting air reserving room 22. Therefore, a certain
amount of air is kept in the shooting air reserving room 22. At
this time, the controlling valve 24 will be moved forward along
with the gunlock 2, making the valve rod 241 collide the touch rod
264 to drive and displace the plug body 242. At this time, the
exhaust passage 23 is unblocked and the certain amount of air
reserved in the shooting air reserving room 22 will go through the
exhaust passage 23 into the tunnel 261 of the small diameter
section 26 of the gunlock 2 to shoot the paint bullet 5 at front
end of the gunlock 2. The capacity of the air reserved in the
shooting air reserving room 22 has been calculated so that the
speed of the shot paint bullet 5 is controllable as required.
[0027] After shooting the paint bullet 5, the trigger 181 is
released. The spring 183 resiliently drives the linking plate 182
backward. Accordingly, the shift bar 31 of the valve body 30 is
moved backward and restored to the original ready state for next
shooting.
[0028] According to the above arrangement, by means of moving the
gunlock, a certain amount of air is reserved in the shooting air
reserving room. The air is then sent into the gunlock for shooting
the paint bullet. Only one single gunlock is used to unblock/block
the bullet-dropping port and control the intake of the air going
into the air duct for shooting the paint bullet. The structure of
the present invention is simplified so that the ratio of failure of
the paint bullet gun is reduced. Also, the manufacturing cost for
the paint bullet gun is greatly lowered.
[0029] The above embodiment is only used to illustrate the present
invention, not intended to limit the scope thereof. Many
modifications of the above embodiment can be made without departing
from the spirit of the present invention.
* * * * *