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Publication numberUS20060117633 A1
Publication typeApplication
Application numberUS 11/002,129
Publication dateJun 8, 2006
Filing dateDec 3, 2004
Priority dateDec 3, 2004
Publication number002129, 11002129, US 2006/0117633 A1, US 2006/117633 A1, US 20060117633 A1, US 20060117633A1, US 2006117633 A1, US 2006117633A1, US-A1-20060117633, US-A1-2006117633, US2006/0117633A1, US2006/117633A1, US20060117633 A1, US20060117633A1, US2006117633 A1, US2006117633A1
InventorsWen-Kwei Chang
Original AssigneeWen-Kwei Chang
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Core structure of a gun trigger lock
US 20060117633 A1
Abstract
A core structure of gun trigger lock comprises two embedded parts. A first embedded part includes a pit and a straight hole; a lock piece and a spring are disposed in the pit; the lock piece, having parallel ratchets formed on one side, is pushed by the spring and moves upward constantly. A second embedded part includes a core rod hole, and a straight core rod is disposed therein; the straight core rod includes a long keyhole at the open end, and a aspheric bump is placed at the bottom of the keyhole; a gear shaft, having parallel ratchets on one side, extends from the straight core rod and can be inserted into the straight hole of the first embedded part. Moreover, a key is also included in the present invention, having an aspheric pit at the front end which matches with the shape of the aspheric bump at the bottom of the keyhole of the second embedded part. Thus, by turning the key to rotate the straight core rod together with the gear shaft, the first and second embedded parts can be combined together or released separately.
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Claims(6)
1. A core structure of a gun trigger lock, comprising:
a first embedded part and a second embedded part to be combined together or release separately;
a pit and a straight hole formed in the first embedded part;
a lock piece and a spring disposed in the pit, the lock piece including ratchets on one side and moving upward constantly by the recovery force of the spring;
a core rod hole formed in the second embedded part;
a straight core rod disposed in the cord rod hole;
a gear shaft at the rear end of the straight core rod inserted into an open groove, having ratchets on one side; combination of the gear shaft and the open groove inserting into the straight hole of the first embedded part;
a keyhole formed at the open end of the straight core rod including a bump at its bottom; and
a key including a pit at the front end corresponding to the shape of the bump inserting into the keyhole.
2. The structure according to claim 1, wherein the straight core rod of the second embedded part has an arc groove at the edge of the end.
3. The structure according to claim 2, wherein the core rod hole of the second embedded part has a block inside the inner edge of hole.
4. The structure according to claim 2, wherein the bump placed at the end of the keyhole of the straight core rod in the second embedded part is aspheric.
5. The structure according to claim 1, wherein the shape of the pit at the front end of the key is the same as the shape of the bump at the bottom of the keyhole in the second embedded part, and both shapes are aspheric.
6. The structure according to claim 1, wherein the key inserted into the keyhole of the straight core rod and the pit of the key matching with and covering around the bump; when the key turned, it can rotate the straight core rod together with the gear shaft.
Description
    BACKGROUND OF THE INVENTION
  • [0001]
    (a) Technical Field of the Invention
  • [0002]
    The present invention relates to a core structure of a gun trigger lock, and more particularly, to a gun trigger lock comprising two embedded parts. The main structure comprises a straight core rod inserted in the core rod hole of one of the embedded parts. A long keyhole is formed at the open end of the straight core rod, having an aspheric bump at the bottom of the keyhole. Moreover, a key shapes a pit corresponding to the bump at its front end. The key can insert into the long keyhole of the straight core rod to turn the rod rotating, and then to lock the two embedded parts by meshing the ratchet wheels, or to release the two embedded parts by separating the ratchet wheels.
  • [0003]
    The present invention comprises a first embedded part and a second embedded part which can be combined together or release separately. The two embedded parts can lock the gun trigger and trigger guard to disable the gun, preventing it from the mis-shooting of the users. The first embedded part includes a pit and a straight hole, where a lock piece and a spring are disposed in the pit. The lock piece, having parallel ratchets formed on one side, is pushed by the spring and moves upward constantly. A washer made of rubber or soft material is disposed adjacent to one side of the first embedded part. Additionally, the second embedded part includes a core rod hole, and a straight core rod is disposed therein, which includes a long keyhole at the open end, and an aspheric bump disposed at the bottom of the keyhole. A gear shaft, having parallel ratchets on one side is formed extending from the straight core rod and is inserted into an open groove of a washer, which is made of rubber or soft material and disposed adjacent to one side of the second embedded part. Combination of the gear shaft and the open groove can insert into the straight hole of the first embedded part. Furthermore, a key also included in the present invention has an aspheric pit at the front end, corresponding to the shape of the aspheric bump at the bottom of the keyhole of the straight core rod in the second embedded part. Thus, by turning the key to rotate the straight core rod, accompanying with the gear shaft, the first and second embedded parts can be combined together or released separately.
  • [0004]
    (b) Description of the Prior Art
  • [0005]
    In general, the prior art such as Taiwan Patent Number 272628, a lock device of a gun trigger, comprise a fixation socket and an embedded socket, where a washer socket is disposed on one side of the fixation socket and another washer is disposed on one side of the embedded socket, facing the fixation socket. The features are the fixation socket including a lock core with a combination rod extending from it. The combination rod includes ratchets on one side and is disposed in a containing hole of the embedded socket, where the ratchets can intermesh with the ratchets on a lock piece of the embedded socket to show lock status, or separate to show open status.
  • [0006]
    Accordingly, as the Taiwan Patent Number 496511, trigger lock comprised of multiplicity of steel sheet, comprises two embedded parts which can be interlocked. One of the embedded part has a lock piece and a spring inside, where the lock piece having ratchets on one side. The other embedded part has a lock core, a cylinder and a spring, where the lock core extends to form a gear shaft at the end, having ratchets on one side. One of the embedded part has a straight hole, where the gear shaft corresponding to the straight hole can be inserted into and combined properly. By meshing or releasing ratchets of the gear shaft and the lock piece, the gun trigger lock shows lock or open status. The key features are: the two embedded parts body are packed in a housing with multiplicity of reinforced plates, which are both made of special reinforced steel sheet formed by direct stamping. The housing and multiplicity of reinforced plates are assembled together with other related components, and then are combined and fixed together by stamping and riveting, so as to construct the main body of the embedded parts.
  • [0007]
    Additionally, this prior art relates to two embedded parts which can be intermeshed with each other as in lock position, or be released separately with each other as in open position by way of the ratchet structure inside both the gear shaft and lock piece. The gun trigger and trigger guard can be lock or open by the action of two embedded parts packed therein. The structure can disable the gun trigger and prevent from the mis-shooting of the third party.
  • [0008]
    However, the prior arts involve complicated structures and many components to fabricate the gun trigger lock and much time to assemble it, which results in high manufacturing cost. Thus, in order to reduce the procurement cost from the buyer with the pressure to reduce the street price, the present invention, under the condition to keep the same performance of the gun trigger lock, modifies the structure and successfully cost down its manufacturing cost.
  • [0009]
    Furthermore, in some EU or USA area, the gun is conditionally opened to public and private are capable of owning or collecting guns or weapons personally. Some gun lovers or collectors even have hundreds of guns or weapons collections, while they need hundreds of corresponding gun trigger locks. It is obvious a trouble to manage so many locks and keys. Therefore, some gun and weapon collectors hope manufacturers can simply the management of the corresponding keys and locks, wherein it will benefit them much if one key only can manage all of their locks.
  • SUMMARY OF THE INVENTION
  • [0010]
    The primary purpose of the present invention is to improve and create a new core structure of a gun trigger lock. The primary object of the invention is to make it easy and convenient to use and manage the gun trigger lock by modifying the key design with corresponding bump in the straight core rod, and without disabling overall functions of the gun trigger lock.
  • [0011]
    Another object of the invention is to reduce the manufacturing cost and selling price of the gun trigger lock by the simpler core structure than previous arts.
  • [0012]
    Reference will now be made in detail to the illustrated embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.
  • [0013]
    As shown in FIGS. 1 and 2, the present invention of the gun trigger lock comprises a first embedded part 1 and a second embedded part 2, which can be both combined together or released separately. Additionally, the two embedded parts 1, 2 can lock the gun trigger and trigger guard to disable their functions, and then, to prevent from the mis-shooting of the third party. The first embedded part 1 includes a pit 11 and a straight hole 12, where a lock piece 13 and a spring 14 are disposed in the pit 11. The lock piece 13, having parallel ratchets 131 formed on one side, is pushed by the spring 14 and moves upward constantly. A washer 15 made of rubber or soft material is disposed adjacent to one side of the first embedded part 1.
  • [0014]
    The second embedded part 2 includes a core rod hole 21, where a straight core rod 22 is disposed herein. The straight core rod 22 includes an arc groove 223 at the edge of the open end, providing insertion for a block 211 extending from the inner edge of the core rod hole 21 and limiting the rotation angle of the straight core rod 22 when inserted in the core rod hole 21.
  • [0015]
    The open end of the straight core rod 22 forms a hollow cylindrical keyhole 221, where an aspheric bump 222 is disposed at the bottom. A gear shaft 224, extending from the straight core rod 22 and formed as one unity, have parallel ratchets 225 on one side and is inserted into an open groove 23 of a washer 24, which is made of rubber or soft material and disposed adjacent to one side of the second embedded part 2. Combination of the gear shaft 224 and the open groove 23 of the washer 24 can be inserted into the straight hole 12 of the first embedded part 1.
  • [0016]
    Furthermore, a key 3 is also included in the present invention and has an aspheric pit 31 at the front end, corresponding to the shape of the aspheric bump 222 at the bottom of the keyhole 221 of the straight core rod 22 in the second embedded part 2.
  • [0017]
    The key 3 can be inserted into the keyhole 221 of the straight core rod 22 and the pit 31 of the key 3 matches well with the bump 222. By turning the key 3, the straight core rod 22 can be rotated together with the gear shaft 224.
  • [0018]
    The foregoing object and summary provide only a brief introduction to the present invention. To fully appreciate these and other objects of the present invention as well as the invention itself, all of which will become apparent to those skilled in the art, the following detailed description of the invention and the claims should be read in conjunction with the accompanying drawings. Throughout the specification and drawings identical reference numerals refer to identical or similar parts.
  • [0019]
    Many other advantages and features of the present invention will become manifest to those versed in the art upon making reference to the detailed description and the accompanying sheets of drawings in which a preferred structural embodiment incorporating the principles of the present invention is shown by way of illustrative example.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • [0020]
    FIG. 1 is an exploded view, illustrating the present invention;
  • [0021]
    FIG. 2 is a cross-sectional view, illustrating the internal structure when the present invention is locked;
  • [0022]
    FIG. 3 is a cross sectional view taken along 3-3 of FIG. 2;
  • [0023]
    FIG. 4 is a cross-sectional view, illustrating the internal structure when the present invention is opened;
  • [0024]
    FIG. 5 is a cross sectional view taken along 5-5 of FIG. 4;
  • [0025]
    FIG. 6 is an exemplary view, illustrating a triangle bump at the bottom of the long keyhole according to an embodiment of the present invention;
  • [0026]
    FIG. 7 is an exemplary view, illustrating a gear-shaped bump at the bottom of the long keyhole according to an embodiment of the present invention;
  • [0027]
    FIG. 8 is an exemplary view, illustrating an S-shaped bump at the bottom of the long keyhole according to an embodiment of the present invention;
  • [0028]
    FIG. 9 is an exemplary view, illustrating a star-shaped bump at the bottom of the long keyhole according to an embodiment of the present invention;
  • [0029]
    FIG. 10 is an exemplary view, illustrating an oval-shaped bump at the bottom of the long keyhole according to an embodiment of the present invention; and
  • [0030]
    FIG. 11 is an exemplary view, illustrating an intercrossed double oval-shaped bump at the bottom of the long keyhole according to an embodiment of the present invention.
  • DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
  • [0031]
    The following descriptions are of exemplary embodiments only, and are not intended to limit the scope, applicability or configuration of the invention in any way. Rather, the following description provides a convenient illustration for implementing exemplary embodiments of the invention. Various changes to the described embodiments may be made in the function and arrangement of the elements described without departing from the scope of the invention as set forth in the appended claims.
  • [0032]
    As shown in FIGS. 2 and 3, the gear shaft 224 and the open groove 23 of the second embedded part 2 can be matched well and inserted into the straight hole 12 of the first embedded part 1. By intermeshing the ratchets 225 on one side of the gear shaft 224 in the second embedded parts 2 and the ratchets 131 on one side of the lock piece 13, the two embedded parts 1, 2 of the present invention are locked, as shown in FIG. 2.
  • [0033]
    The two embedded parts 1, 2 of the present invention can be fastened and fixed at two sides of the gun trigger and the trigger guard, and then clamp the gun trigger and trigger guard there between, in order to enclose the gun trigger and disable its functions.
  • [0034]
    As shown in FIG. 4 and 5, when the corresponding key 3 was inserted into the keyhole 221 of the straight core rod 22 in the second embedded part 2, the pit 31 of the key 3 can match well with the bump 222 at the bottom of the keyhole 221. While turning the key 3, the straight core rod 22 can be rotated together with the gear shaft 224. Furthermore, by separating the ratchets 225 on one side of the gear shaft 224 in the second embedded parts 2 and the ratchets 131 on one side of the lock piece 13, the two embedded parts 1, 2 of the present invention are opened, as shown in FIG. 4.
  • [0035]
    Accordingly, as shown in FIGS. 6 to 11, there are several types of the bumps 222 in the second embedded part 2 and they have to be in aspheric shapes. Meanwhile, it is apparent that those shapes in FIGS. 6 to 11 represent, but not limited to, the modifications and variations. Thus, it is intended that the present invention covers different shapes of aspheric bumps without departing from the spirit or scope of the inventions.
  • [0036]
    Thus, FIG. 6 illustrates a triangle bump 222 a, FIG. 7 illustrates a gear-shaped bump 222 b, FIG. 8 illustrates a S-shaped bump 222 c, FIG. 9 illustrates a star-shaped bump 222 d, FIG. 10 illustrates an oval-shaped bump 222 e, FIG. 11 illustrates an intercrossed double oval-shaped bump 222 f It is certain that there should be all kinds of pits 31 of the keys 3 to match with all kinds of shapes of the bump 222 such that both kinds of them can function well.
  • [0037]
    To sum up, the present invention relates to a straight core rod 22 of a second embedded part 2, having a deep and long keyhole 221 at its open end, where a bump 222 is disposed at the bottom of the keyhole 221. In general, because the bump 222 is concealed deeply at the bottom of the key sink 221, the trigger lock is not easy to be poked open by other tools such as to reach the burglarproof function. Furthermore, because the bump 222 and the pits 31 of the key 3 have different kinds of aspheric geometric shapes, gun collectors can select a group of gun trigger locks with the same bump 222 so that all the locks and keys can be compatible with each other. Thus, it will be very easy and convenient for the gun collectors to use and manage their gun trigger locks.
  • [0038]
    It will be understood that each of the elements described above, or two or more together may also find a useful application in other types of methods differing from the type described above.
  • [0039]
    While certain novel features of this invention have been shown and described and are pointed out in the annexed claim, it is not intended to be limited to the details above, since it will be understood that various omissions, modifications, substitutions and changes in the forms and details of the device illustrated and in its operation can be made by those skilled in the art without departing in any way from the spirit of the present invention.
Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US3616559 *Sep 12, 1968Nov 2, 1971Sobolewski Edward JFirearm trigger lock fitting on the trigger guard
US3624945 *Apr 13, 1970Dec 7, 1971Master Lock CoUniversal self-conforming trigger lock for firearms
US5488794 *Feb 21, 1995Feb 6, 1996Arreguin; Phillip M.Tamper proof gun lock
US5638627 *Mar 1, 1996Jun 17, 1997Franzen International, Inc.Lock for firearms with trigger blocking function
US6269575 *Aug 17, 1999Aug 7, 2001Wen-Kwei ChangLocking device for the trigger of a pistol
US6308540 *Oct 22, 1999Oct 30, 2001Li-Chiue LeeCable-type fastening device for pistol trigger lock
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US6550176 *May 15, 2002Apr 22, 2003Fabbrica D'armi Pietro Beretta S.P.A.Perfected mechanical safety device for light firearms such as semiautomatic rifles
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US7281397 *Dec 14, 2004Oct 16, 2007Hugh VictorSecuring system and method
US7584566 *Aug 9, 2007Sep 8, 2009Hugh VictorSecuring system with housing for hardware
US7730750Sep 25, 2007Jun 8, 2010Hugh VictorSecuring system and method
US8186088Aug 7, 2009May 29, 2012Hugh VictorSecuring system with housing for hardware
US8402799May 10, 2010Mar 26, 2013Hugh VictorSecuring system and method
US20050229654 *Dec 14, 2004Oct 20, 2005Hugh VictorSecuring system and method
US20080034635 *Aug 9, 2007Feb 14, 2008Hugh VictorSecuring system with housing for hardware
US20080245117 *Sep 25, 2007Oct 9, 2008Hugh VictorSecuring system and method
US20100218567 *May 10, 2010Sep 2, 2010Hugh VictorSecuring system and method
Classifications
U.S. Classification42/70.07
International ClassificationF41A17/00
Cooperative ClassificationF41A17/02, F41A17/54
European ClassificationF41A17/02, F41A17/54