U.S. patent application number 11/448666 was filed with the patent office on 2007-12-13 for cylinder tube of toy gun.
This patent application is currently assigned to Enlight Corporation. Invention is credited to Szu-Ming Huang, Chiao-Chih Tai, Chih-Ming Tien, Chia-Chen Wang.
Application Number | 20070283941 11/448666 |
Document ID | / |
Family ID | 38820615 |
Filed Date | 2007-12-13 |
United States Patent
Application |
20070283941 |
Kind Code |
A1 |
Tai; Chiao-Chih ; et
al. |
December 13, 2007 |
Cylinder tube of toy gun
Abstract
A cylinder tube of a toy gun is disclosed. A cylinder head is
mounted on the cylinder tube of the toy gun. A tube passage is
formed to penetrate through the cylinder head. Several air
induction passages are formed circularly around the tube passage. A
control device is applied to the air induction passages for opening
or closing the air induction passages according to the forward or
backward movement of the piston. As a result, much more air can be
sucked into the air storage chamber immediately after the backward
movement of the piston. Accordingly, the air capacity of the
cylinder tube can be increased so as to produce larger air pressure
for pushing the bullet to the outside of the toy gun, thereby
improving the shooting performance of the toy gun and providing the
simulated recoil effect, which simulates the real shooting.
Inventors: |
Tai; Chiao-Chih; (Taoyuan
Hsien, TW) ; Huang; Szu-Ming; (Taoyuan Hsien, TW)
; Wang; Chia-Chen; (Taoyuan Hsien, TW) ; Tien;
Chih-Ming; (Taoyuan Hsien, TW) |
Correspondence
Address: |
TROXELL LAW OFFICE PLLC
Suite 1404, 5205 Leesburg Pike
Falls Church
VA
22041
US
|
Assignee: |
Enlight Corporation
|
Family ID: |
38820615 |
Appl. No.: |
11/448666 |
Filed: |
June 8, 2006 |
Current U.S.
Class: |
124/67 |
Current CPC
Class: |
F41B 11/642 20130101;
F41B 11/646 20130101 |
Class at
Publication: |
124/67 |
International
Class: |
F41B 11/00 20060101
F41B011/00 |
Claims
1. A cylinder tube of a toy gun comprising: a cylinder tube for
holding a piston, said cylinder tube having a cylinder head on a
front end thereof, said cylinder being penetrated through by a tube
passage, said cylinder head having at least an air induction
passage around said tube passage circularly; and a control device
for correspondingly opening or closing said air induction passage
according to the movement of said piston, said control device being
a movable plate.
2. The cylinder tube of the toy gun of claim 1, wherein said
movable plate has an opening on the center thereof corresponding to
said tube passage.
3. The cylinder tube of the toy gun of claim 1, wherein said
movable plate is a thin rubber plate.
4. The cylinder tube of the toy gun of claim 1, wherein said
movable plate is a thin steel plate.
5. The cylinder tube of the toy gun of claim 1, wherein said
movable plate is a thin leaf spring.
6. The cylinder tube of the toy gun of claim 1, wherein an outer
cover is connected to one end of said cylinder head, the center of
said outer cover is communicated with one end of said tube passage
for forming an opening, said outer cover has a plurality of through
holes, which are staggered with said air induction passage, and a
plurality of air inlets formed between notches on the bottom of
said outer cover and said cylinder head for communicating said air
induction passage with said air storage chamber.
7. The cylinder tube of the toy gun of claim 1, wherein an outer
cover is connected to one end of said cylinder head, and said
movable plate is affixed to said outer cover by a light spring.
8. The cylinder tube of the toy gun of claim 1, wherein one end of
said movable plate is affixed to the inside of said cylinder head
by a nail.
9. The cylinder tube of the toy gun of claim 1, wherein said
movable plate is coupled with said tube passage via a hollow
rod.
10. A cylinder tube of a toy gun comprising: a cylinder tube for
holding a piston, said cylinder tube having a cylinder head on a
front end thereof, said cylinder being penetrated through by a tube
passage, said cylinder head having at least an air induction
passage around said tube passage circularly; and a control device
for correspondingly opening or closing said air induction passage
according to the movement of said piston, said control device being
a movable valve.
11. The cylinder tube of the toy gun of claim 10, wherein at least
an air inlet is formed on said movable plat and staggered with said
air induction passage.
12. The cylinder tube of the toy gun of claim 10, wherein two
blocks are formed on both ends of said movable valve, respectively,
for closing said air induction passage and for limiting the
connection of said movable valve.
13. The cylinder tube of the toy gun of claim 10, wherein said
movable valve is coupled with said tube passage via a hollow valve
rod.
14. The cylinder tube of the toy gun of claim 10, wherein two
blocks are formed on both ends of said movable valve, respectively,
said movable valve is pivotally coupled with said tube passage via
a hollow valve rod, and one of said blocks is to shift said movable
valve by connection with a pull rod.
15. The cylinder tube of the toy gun of claim 10, wherein a
plurality of pivotal connection holes are formed circularly on said
cylinder head for pivotal connection with a plurality of valve rods
of said movable valve.
16. The cylinder tube of the toy gun of claim 10, wherein a
plurality of pivotal connection holes are formed circularly on said
cylinder head for pivotal connection with a plurality of valve rods
of said movable valve, said movable valve has an opening
corresponding to said tube passage, and a spring is sleeved onto
each of said valve rods.
17. A cylinder tube of a toy gun comprising: a cylinder tube for
holding a piston, said cylinder tube having a cylinder head on a
front end thereof, said cylinder being penetrated through by a tube
passage, said cylinder head having at least an air induction
passage around said tube passage circularly; and a control device
for correspondingly opening or closing said air induction passage
according to the movement of said piston, said control device being
a steel ball valve.
18. The cylinder tube of the toy gun of claim 17, wherein said air
induction passage of said cylinder tube is a cone-shaped passage,
and at least a blocking pillar is located on a larger opening of
said air induction passage for forming at least two air inlets.
19. The cylinder tube of the toy gun of claim 17, wherein said air
induction passage of said cylinder tube is a cone-shaped passage,
at least a blocking pillar is located on a larger opening of said
air induction passage for forming at least two air inlets, and the
diameter of said steel ball valve is larger than the calibers of
said air inlets and a smaller opening of said air induction
passage.
Description
FIELD OF THE INVENTION
[0001] The present invention relates to a cylinder tube of a toy
gun, and more particularly to a toy gun with increased air suction
area and air suction speed so as to produce larger air pressure for
pushing the bullet away from the toy gun.
BACKGROUND OF THE INVENTION
[0002] The conventional toy gun includes a cylinder tube embedded
securely in a gun body, wherein a rack is mounted on the bottom of
the piston extending to the outside of the cylinder tube for
driving the piston by a gear set. The gear set includes a driving
gear, a steering gear and a final gear, wherein the final gear is a
semi-gear with an incomplete gear ring, whereby the air can be
compressed and exhausted by disengaging a releasing arc edge of the
final gear from the rack after backward driving the rack and the
piston by the final gear.
[0003] The air capacity of the cylinder tube is affected by the
size of the gun body. Besides, the air suction ability of the
cylinder tube is also affected by the size of the gun body. Due to
the fast movement of the piston in the air suction process, the
amount of air sucked into the cylinder tube via the tube passage of
the cylinder head is insufficient. As a result, the shooting
performance of the toy gun is reduced.
SUMMARY OF THE INVENTION
[0004] Whereas the foregoing description, the present inventor
makes diligent studies in providing an improved structure so as to
overcome the conventional problems.
[0005] It is a main object of the present invention to provide a
cylinder tube of a toy gun, wherein air induction passages are
formed circularly on a cylinder head for increasing the area of air
suction such that much more outside air can be sucked into the air
storage chamber immediately after the backward movement of the
piston. As a result, the air capacity of the cylinder tube can be
increased so as to produce larger air pressure for pushing the
bullet away from the toy gun, thereby providing the simulated
recoil effect, which simulates the real shooting, and improving the
shooting performance of the toy gun.
BRIEF DESCRIPTION OF THE DRAWINGS
[0006] FIG. 1 is a three-dimensional view showing the inside
structure of the toy gun of the present invention.
[0007] FIG. 2 is a schematic view showing the motion of the first
preferred embodiment of the present invention.
[0008] FIG. 3 is a schematic view showing another motion of the
first preferred embodiment of the present invention.
[0009] FIG. 4 is a three-dimensional view showing the radial
cross-section of the cylinder head of FIG. 3.
[0010] FIG. 5 is a schematic view showing the motion of the second
preferred embodiment of the present invention.
[0011] FIG. 6 is a schematic view showing another motion of the
second preferred embodiment of the present invention.
[0012] FIG. 7 is a three-dimensional view showing the radial
cross-section of the cylinder head of FIG. 6.
[0013] FIG. 8 is a schematic view showing the motion of the third
preferred embodiment of the present invention.
[0014] FIG. 9 is a schematic view showing another motion of the
third preferred embodiment of the present invention.
[0015] FIG. 10 is a three-dimensional view showing one radial
cross-section of the cylinder head of FIG. 9.
[0016] FIG. 11 is a three-dimensional view showing another radial
cross-section of the cylinder head of FIG. 9.
[0017] FIG. 12 is a three-dimensional, partial view of FIG. 10.
[0018] FIG. 13 is a schematic view showing the motion of the fourth
preferred embodiment of the present invention.
[0019] FIG. 14 is a schematic view showing another motion of the
fourth preferred embodiment of the present invention.
[0020] FIG. 15 is a three-dimensional view showing the radial
cross-section of the cylinder head of FIG. 14.
[0021] FIG. 16 is a schematic view showing the motion of the fifth
preferred embodiment of the present invention.
[0022] FIG. 17 is a schematic view showing another motion of the
fifth preferred embodiment of the present invention.
[0023] FIG. 18 is a three-dimensional view showing the radial
cross-section of the cylinder head of FIG. 17.
[0024] FIG. 19 is a schematic view showing the motion of the sixth
preferred embodiment of the present invention.
[0025] FIG. 20 is a schematic view showing another motion of the
sixth preferred embodiment of the present invention.
[0026] FIG. 21 is a three-dimensional view showing the radial
cross-section of the cylinder head of FIG. 20.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
[0027] The descriptions taken with the drawings make the
structures, features, and embodiments of the present invention
apparent to the examiner how the present invention may be embodied
in practice.
[0028] Referring to FIG. 1, a structure of toy gun is illustrated.
A piston 3 is slidable in a cylinder tube 2 of a gun body 1. A
spring 4 is located between the bottom of the gun body 1 and the
piston 3. A high torque motor 5 is located in a gun grip. The motor
5 is connected to a final gear 63, which is partially protrudent
into the cylinder tube 2, via a steering gear 61 and a reduction
gear 62 of a gear set 6 for being connectedly engaged with a rack
on the bottom of the piston 3 and for driving the final gear 63 to
pull back the piston 3 and to lean against a slide block 71 of a
pull rod 7 via a protrudent pin 632 until the motor 5 is exactly
released from an arc-shaped releasing edge 631 of the final gear
63,. thereby completing the process for compressing the air so as
to push a bullet to the outside of the toy gun.
[0029] Prior to describing the preferred embodiment of the present
invention, please refer to FIG. 2. As shown in this diagram, an air
storage chamber 21 with various capacities can be formed in the
cylinder tube 2 by various movements of the piston 3 within the
cylinder tube 2. Besides, a tube passage 22 is formed to penetrate
through the cylinder tube 2. One end of the tube passage 22 is
communicated with the air storage chamber 21, and the other end of
the tube passage 22 is connected to a bullet passage and extended
to the outside of the gun muzzle (not shown). When the piston 3 is
in action, the air can be sucked into the air storage chamber 21
from the front end of the tube passage 22. It is specially
mentioned that in order to improve the shooting performance of the
toy gun for simulating the recoil effect of real shooting, much
more air must be accumulated in the cylinder tube 2 so as to form
larger air pressure for pushing the bullet away from the toy gun.
As a result, the present invention is characterized in that at
least an air induction passages 31 are formed on a cylinder head 23
of the cylinder tube 2 to communicate the air storage chamber 21
with the cylinder head 23, and that a control device 8 is applied
to the air induction passages 31 for correspondingly opening or
closing the air induction passages 31 according to the forward or
backward movement of the piston. Therefore, in the air suction
state, the air suction amount and the air capacity of the cylinder
tube 2 can be increased by using the additionally formed air
induction passages 31. Besides, in the shooting state, the air
induction passages 31 are closed by the control device 8 so as to
produce larger air pressure for pushing the bullet to the outside
of the toy gun.
[0030] As shown in FIG. 2 through FIG. 4, the motions of the first
preferred embodiment of the present invention are illustrated. As
shown in FIG. 4, several air induction passages 31 are formed
circularly around the tube passage 22 of the cylinder tube 23, and
the control device 8 is further applied to the cylinder tube 23 for
opening or closing the air induction passages 31. The control
device 8 is a ring-shaped movable plate 81 made of a thin rubber
plate, a thin steel plate, or a thin leaf spring. Besides, the
movable plate 81 has an opening 811 corresponding to the tube
passage 22. One end of the movable plate 81 is affixed to the
inside of the cylinder head 23 by a nail 812, and the other end of
the movable plate 81 is flatly, movably leant on the air induction
passages 31. In the rest and shooting states, the stationary
movable plate 81 is able to close the air induction passages 31, as
shown in FIG. 3. In the air suction state, as shown in FIG. 2, the
piston 3 is shifted backward to compress the spring 4 such that a
suction force is formed immediately to provide the air storage
chamber 21 with a negative pressure, whereby the movable plate 81
is lifted up in the same direction as the movement of the piston 3
to open the air induction passages 31. At the same moment, much
more outside air can be sucked into the air storage chamber 21 via
the air induction passages 31 and the tube passage 22. As a result,
the air suction speed and air suction amount can be both increased
significantly for further increasing the air capacity of the air
storage chamber 21. In the shooting state, as shown in FIG. 3, the
piston 3 is released from the arc-shaped releasing edge 631 of the
final gear 63 (shown in FIG. 1) such that the piston 3 is shifted
rapidly toward the air induction passages 31 by the resilience of
the restored spring 4, which is previously compressed, whereby the
air pressure is produced to force the movable plate 81 to close the
air induction passages 31. As a result, the air inside the air
storage chamber 21 can be exhausted via the opening 811 and air
passage 22 for pushing the bullet to the outside of the toy gun by
larger air pressure.
[0031] The improved means of the present invention are disclosed
adequately in the description of the first preferred embodiment.
Other preferred embodiments, which are derived from the first
preferred embodiment according to the spirit and concept of the
present invention, are disclosed in the following description. It
is additionally mentioned that the motions of the piston and the
capacity changes of the air storage chamber of the following
preferred embodiments, which are described roughly, are identical
to that of the first preferred embodiment.
[0032] Referring further to FIG. 5 through FIG. 7, the motions of
the second preferred embodiment of the present invention are
illustrated. As show in FIG. 5 and FIG. 6, the control devices 8
are steel ball valves 82 held in the additionally formed air
induction passages 32, respectively. The air induction passages 32
are cone-shaped passages. At least a blocking pillar 321 is located
on a larger opening of each of the cone-shaped air induction
passages 32 for forming two or more air inlets (shown in FIG. 7).
The diameter of the steel ball valve 72 is larger than the caliber
of the air inlet and the smaller opening of the air induction
passage 32 to ensure that the steel ball vales 82 are inseparably
shiftable within the respective air induction passages 32. In the
air suction state (shown in FIG. 5), the piston 3 is shifted
backward such that the stationary steel ball valves 82 are also
shifted backward immediately by the suction force until they are
blocked by the blocking pillars 321. At the same moment, much more
outside air can be sucked into the air storage chamber 21 via the
smaller openings of the air induction passages 32 and the air
inlets by the piston 3. In the shooting state (shown in FIG. 6),
the piston 3 is shifted rapidly toward the air induction passages
32 such that the steel ball valves 82 can be shifted in the same
direction as the movement of the piston 3 by the air inside the air
storage chamber 21 so as to close the smaller openings of the air
induction passages 32.
[0033] Referring further to FIG. 8 through FIG. 12, the motions of
the third preferred embodiment of the present invention are
illustrated. As show in FIG. 11, several air induction passages 33
are formed on the cylinder head 23 circularly around the tube
passage 22. As shown in FIG. 10, a cup-shaped outer cover 331 is
extended from and connected to one end of the cylinder head 23. The
center of the outer cover 331 is communicated with one end of the
tube passage 22 for forming an opening. Several through holes 332
and the air induction passages 33 are staggered. Several notches
are formed on the bottom of the outer cover 331 for forming several
arc-shaped air inlets, which communicate the air induction passages
33 with the air storage chamber 21, between the outer cover 331 and
the cylinder head 23, as shown in FIG. 8 and FIG. 9. The control
device 8 is a ring-shaped movable plate 83 having an opening 831
corresponding to the tube passage 22, and it is made of a thin
rubber plate, a thin steel plate, or a thin leaf spring. The
movable plate 83 is affixed to light springs 333 of the outer cover
331 and attached to the outer edge of the tube passage 22 (shown in
FIG. 12). The diameter of the movable plate 83 is approximately
equal to that of the outer cover 331, but it is larger than that of
the air induction passages 33 for closing the air induction
passages 33. In the air suction state, as shown in FIG. 8, the
piston 3 is shifted backward such that the movable plate 83 is
leant on the light springs 333 immediately so as to open the air
induction passages 33 such that the outside air can be sucked into
the air storage chamber 21 via the air inlets. In the shooting
state (shown in FIG. 9), the piston 3 is shifted forward to
compress the air inside the air storage chamber 21 such that the
movable plate 83 is shifted by the resilience of the light springs
333 and the air that passes through the through holes 332 to close
the air induction passages 33.
[0034] Referring further to FIG. 13 through FIG. 15, the motions of
the fourth preferred embodiment of the present invention are
illustrated. As show in FIG. 15, several air induction passages 34
and several pivotal connection holes 341 are formed on the cylinder
head 23 circularly around the tube passage 22 circularly. The
control device 8 is a movable valve 84 for opening or closing the
air induction passages 34, and is pivotally, correspondingly
inserted into the pivotal connection holes 341 by using several
valve rods. A block 841 and several blocks 841' are mounted on both
ends of the movable valve 84, respectively. An opening 842 is
formed on the movable valve 84 corresponding to the tube passage
22. Several air inlets 843 of the movable valve 84 and the air
induction passages 34 of the cylinder head 23 are staggered. A
spring 844 is sleeved onto each valve rod of the movable valve 84,
and located between the blocks 841' and one end of the pivotal
connection holes 341. The blocks 841 and 841' are for closing the
air induction passages 34 and for limiting the pivotal connection
according to the length of the valve rods. In the air suction
state, as shown in FIG. 13, the piston 3 is shifted backward for
driving the backward movement of the movable valve 84 so as to
compress the springs 844 for opening the air induction passages 34
such that a lot of outside air can be sucked into the air storage
chamber 21 via the air inlets 843. In the shooting state, as shown
in FIG. 14, the piston 3 is shifted forward to compress the air
inside the air storage chamber 21 such that the movable valve 84 is
shifted forward by using the resilience of the springs 844. When
the air induction passages 34 are closed by the block 841, the air
inlets 843 and the air induction passages 34, which are staggered,
are not communicated with each other such that the air can be
exhausted to the outside via the opening 842 and the tube passage
22.
[0035] Referring further to FIG. 16 through FIG. 18, the motions of
the fifth preferred embodiment of the present invention are
illustrated. As show in FIG. 18, several air induction passages 35
are formed on the cylinder head 23 circularly around the tube
passage 22 circularly. The tube passage 22 is also for insertion of
the control device 8. The control device 8 is a ring-shaped movable
plate 85 made of a thin rubber plate, a thin steel plate, or a thin
leaf spring. The movable plate 85 has an opening 851 corresponding
to the tube passage 22. The movable plate 85 is coupled with the
tube passage 22 by using a hollow rod 852, wherein the hollow rod
852 is located to interpose through the opening 851 for closing the
air induction passages 35 completely, as shown in FIG. 17. In the
air suction state, as shown in FIG. 16, the piston 3 is shifted
backward such that the movable plate 85, which is stationary, is
lifted backward correspondingly for opening the air suction
passages 35 such that a lot of outside air can be sucked into the
air storage chamber 21 via the gap between the movable plate 85 and
the cylinder tube 2. In the shooting state, as shown in FIG. 17,
the piston 3 is shifted forward to compress the air inside the air
storage chamber 21 to close the air induction passages 35 by using
the movable plate 85.
[0036] Referring further to FIG. 19 through FIG. 21, the motions of
the sixth preferred embodiment of the present invention are
illustrated. As show in FIG. 21, several air induction passages 36
are formed on the cylinder head 23 circularly around the tube
passage 22. The tube passage 22 is for insertion of the control
device 8. The control device 8 is a movable valve 86 having a block
861 and a block 861' on both ends. Several air inlets 863 of the
movable valve 86 and the air induction passages 36 of the cylinder
head 23 are staggered. The movable valve 86 is coupled with the
tube passage 22 by using a hollow valve rod, wherein the block 861
is for closing the air induction passages 36 and for limiting the
pivotal connection. The block 861' is for limiting the pivotal
connection and further for connection with a pull rod 7 so as to
shift the movable valve 86.
[0037] In the air suction state, as shown in FIG. 19, the piston 3
is driven by the final gear 63 to further pull back the pull rod 7
(as shown in FIG. 1), whereby the movable valve 86 is shifted
backward for opening the air induction passages 36. In the shooting
state, as shown in FIG. 20, the piston 3 is shifted forward to
compress the air inside the air storage chamber 21 such that the
air induction passage 36 can be closed by the movable valve 86.
[0038] It is additionally mentioned that the shape, size and amount
of the air induction passage of the cylinder tube can be adjusted
so as to provide the optimum air pressure according to the
practical requirement. However, this is not the key feature of the
present invention and is not detailedly described herein.
[0039] While the preferred embodiment of the invention has been set
forth for the purpose of disclosure, modifications of the disclosed
embodiment of the invention as well as other embodiments thereof
many occur to those skilled in the art. Accordingly, the appended
claims are intended to cover all embodiments, which do not depart
from the spirit and scope of the invention.
* * * * *