U.S. patent application number 11/288002 was filed with the patent office on 2006-09-21 for bullet delivery device for air guns.
Invention is credited to Chu-Min Liang.
Application Number | 20060207585 11/288002 |
Document ID | / |
Family ID | 36929648 |
Filed Date | 2006-09-21 |
United States Patent
Application |
20060207585 |
Kind Code |
A1 |
Liang; Chu-Min |
September 21, 2006 |
Bullet delivery device for air guns
Abstract
A bullet delivery device for an air gun includes strike rod
which is moved by a spring when the trigger is pulled and a spiral
section is connected to the strike rod so that the pressurized air
is guided and accelerated via the spiral groove to deliver the
bullets out from the chamber of the barrel.
Inventors: |
Liang; Chu-Min; (Taichung
City, TW) |
Correspondence
Address: |
NIKOLAI & MERSEREAU, P.A.
900 SECOND AVENUE SOUTH
SUITE 820
MINNEAPOLIS
MN
55402
US
|
Family ID: |
36929648 |
Appl. No.: |
11/288002 |
Filed: |
November 28, 2005 |
Current U.S.
Class: |
124/74 |
Current CPC
Class: |
F41B 11/723 20130101;
F41B 11/62 20130101; F41B 11/55 20130101 |
Class at
Publication: |
124/074 |
International
Class: |
F41B 11/00 20060101
F41B011/00 |
Foreign Application Data
Date |
Code |
Application Number |
Mar 18, 2005 |
TW |
094204286 |
Claims
1. An air gun comprising: a handle and a barrel connected to the
handle, a trigger connected to the barrel; a strike assembly
received in the barrel and including a strike bar which has a pull
end extending from a rear end of the barrel and a push member
connected with the strike bar, a pawl pivotably connected to the
barrel and the push member including a groove so that the pawl is
removably engaged with the groove, the pawl being pivoted by the
trigger, a strike rod having a first end fixed to the strike bar
and a second end of the strike rod having a spiral section, the
spiral section located in a chamber in the barrel, a first spring
connected between the attached member and an end cap connected to
the rear end of the barrel; a valve assembly received in the barrel
and including a tubular member and a piston movably extending
through an axial passage of the tubular member, a gap defined
between the piston and an inner periphery of an aperture defined
through the tubular member, a first end of the piston extending out
from the tubular member and facing the push member, a second end of
the piston fixed to a seal which is biased by a second spring so as
to removably seal the aperture of the aperture in the tubular
member, a radial hole defined through a wall of the tubular member
and communicating with the chamber of the barrel, and a magazine
connected to the barrel and adapted to feed bullets into the
chamber of the barrel.
2. The air gun as claimed in claim 1, wherein the piston has a flat
surface defined in an outside thereof and the gap is defined
between the flat surface and the inner periphery of the aperture of
the tubular member.
3. The air gun as claimed in claim 1, wherein the strike rod has a
threaded section on the first end thereof and the strike bar has a
threaded hole defined therein so that the threaded section is
connected to the threaded hole.
4. The air gun as claimed in claim 1, wherein the second end of the
piston includes a threaded end and the seal has a threaded hole
with which the threaded end is connected.
5. The air gun as claimed in claim 1, wherein the strike bar is
located parallel to the push member, a pin connected between the
strike bar and the push member.
Description
FIELD OF THE INVENTION
[0001] The present invention relates to a bullet delivery device
for ejecting bullets from the barrel of an air gun the device
includes a strike rod with a spiral section which guides the air
flow to eject the bullets.
BACKGROUND OF THE INVENTION
[0002] A conventional air gun such as paint ball marker uses
pressurized air to eject the paint balls which go out from the
barrel at a speed. The speed varies depending on the force that
applies to the paint balls. Generally, the pressurized air is
introduced into the barrel of the air gun via a valve device by
pulling the trigger of the air gun. In order to send the paint
balls to a far distance, the barrel is made as long as possible so
that the paint balls can be kept being pushed by pressurized air
longer. However, the longer barrel makes the air gun to be too
heavy to carry and the users cannot hold the air gun for longer
time.
[0003] The present invention intends to provide a bullet delivery
device of an air gun which includes a strike rod for pushing the
bullets out from the barrel and the strike rod includes a spiral
section which guides and accelerate the air to push the paint balls
at higher speed.
SUMMARY OF THE INVENTION
[0004] The present invention relates to a bullet delivery device
for an air gun and the device includes a strike assembly received
in the barrel and includes a strike bar which has a pull end
exposed out from the barrel and a push member is connected with the
strike bar. A pawl is pivotably connected to the barrel and has one
end removably engaged with a groove of the push member when the
strike bar is pulled backward. The pawl is pivoted to release the
push member by pulling the trigger so that the push member moves
toward a valve assembly by a first spring. A strike rod has a first
end fixed to the strike bar and a second end of the strike rod has
a spiral section. The spiral section is located in a chamber in the
barrel so as to hit the bullets. The valve assembly is received in
the barrel and includes a tubular member and a piston movably
extends through an axial passage of the tubular member. A gap is
defined between the piston and an inner periphery of an aperture
defined through the tubular member. A first end of the piston
extends out from the tubular member and faces the push member. A
second end of the piston is fixed to a seal which is biased by a
second spring so as to removably seal the aperture of the aperture
in the tubular member. A radial hole is defined through a wall of
the tubular member and communicates with the chamber of the barrel.
A magazine is connected to the barrel so as to feed bullets into
the chamber of the barrel.
[0005] The present invention will become more obvious from the
following description when taken in connection with the
accompanying drawings which show, for purposes of illustration
only, a preferred embodiment in accordance with the present
invention.
BRIEF DESCRIPTION OF THE DRAWINGS
[0006] FIG. 1 shows the air gun of the present invention;
[0007] FIG. 2 is an exploded view to show the bullet delivery
device and the air gun of the present invention;
[0008] FIG. 3 shows that the strike bar is not pulled backward and
the bullet does not enter the chamber of the barrel;
[0009] FIG. 4 shows that the strike bar is pulled backward and the
bullet enters the chamber of the barrel;
[0010] FIG. 5 shows that the bullet is ejected out from the barrel
when the trigger is pulled, and
[0011] FIG. 6 is an enlarged view to show the air enters the
chamber to send the bullet out from the barrel.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
[0012] Referring to FIGS. 1 to 3, the air gun 1 of the present
invention comprises a handle 11 with a barrel 12 connected to the
handle 11, and a trigger 15 is connected to the barrel 12. A
magazine 13 is connected to a top of the barrel 12 so as to feed
bullets into the chamber of the barrel 12. An air bottle is
connected to the barrel 12 to provide pressurized air into the
barrel 12.
[0013] The bullet delivery device includes a strike assembly 2
which is received in the barrel 12 and includes a strike bar 21
which has a pull end 27 extending from an open path in a rear end
of the barrel 12 and a push member 23 is connected to the strike
bar 21 by a pin 22 connected therebetween. The strike bar 21 is
located parallel to the push member 23.
[0014] A pawl 16 is pivotably connected to the barrel 12 and the
push member 23 includes a groove 231 so that the pawl is removably
engaged with the groove 231 when the user pulls the pill end 27
backwards as shown in FIG. 4. When the trigger 15 is pulled, the
pawl 16 is pivoted so that the pawl 16 is disengaged from the
groove 231 and the push member 23 moves left in FIG. 4. A strike
rod 26 has a threaded section 261 on the first end thereof and the
strike bar 21 has a threaded hole 211 defined therein so that the
threaded section 261 is connected to the threaded hole 211. A
second end of the strike rod 26 has a spiral section which is
located in a chamber in the barrel 12. The bullets 5 such as paint
balls enter the chamber when the spiral section is moved backward.
A first spring 25 is connected between the attached member 14 and
an end cap 14 connected to the rear end of the barrel 12. The end
cap 14 is positioned by a position rod 141 extends laterally into
the barrel 12.
[0015] A valve assembly 3 is received in the barrel 12 and
communicates with a path from which the pressurized air is provided
from the air bottle. The valve assembly 3 includes a tubular member
31 and a piston 33 movably extends through an axial passage 311 of
the tubular member 31. The piston 33 has a flat surface 331 defined
in an outside thereof and a gap is defined between the flat surface
331 and the inner periphery of an aperture defined in an end of the
tubular member 31. A first end of the piston 33 extends out from
the tubular member 31 and faces the push member 14. A second end of
the piston 33 includes a threaded end 332 and a seal 32 has a
threaded hole 321 with which the threaded end 332 is connected. The
seal 32 is biased by a second spring 34 so as to removably seal the
aperture of the aperture in the tubular member 31. A radial hole
312 is defined through a wall of the tubular member 31 and
communicates with the chamber of the barrel 12.
[0016] As shown in FIGS. 5 and 6, when pulling the trigger 15, the
push member 23 is released and pulled by the first spring 25, so
that a boss 24 on an end of the push member 23 hits the first end
of the piston 33, so that the piston 33 is moved and the seal 32 is
removed from the aperture of the tubular member 31. It is noted
that when the trigger 15 is not pulled, the space around the piston
33 and the seal 32 is filled with the pressurized air, so that when
the seal 32 moves away, the pressurized air enters the tubular
member 31 via the gap and enters the chamber. In the meanwhile,
when the push member 32 is released, the strike bar 21 and the
strike rod 26 move to hit the bullet 50 in the chamber. The
pressurized air is guided and accelerated when passing through the
spiral groove of the spiral section of the strike rod 26.
Therefore, the bullets 50 can be delivered at high speed.
[0017] While we have shown and described the embodiment in
accordance with the present invention, it should be clear to those
skilled in the art that further embodiments may be made without
departing from the scope of the present invention.
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