TWI662245B - Crossbow trigger structure - Google Patents

Abstract

The invention discloses a crossbow trigger structure, which is arranged on a crossbow crossbow body and serves as a bow and arrow that constrains the crossbow's bowstring and crossbow body. It includes a crossbow box, a trigger unit, a trigger insurance group, and a Air defense string insurance group. The crossbow box is connected to the crossbow body to provide a space for accommodation. The trigger set is housed in the crossbow box and the crossbow body respectively, to restrain the bowstring from operating. The trigger insurance group and the air string insurance group are respectively housed in a crossbow box and interact with the trigger group, selectively restraining the trigger group action. With the composition of the above components, the trigger insurance group and the air string insurance group are triggered together when the bowstring is tightened, so as to form an automatic lock to ensure the safety of the crossbow.

Description

Crossbow trigger structure

The present invention relates to a crossbow related technical field, and in particular, it can be automatically insured during the process of tightening the bowstring, and the crossbow trigger structure can only be unlocked for firing after the bow and arrow have been put in place. .

According to the structure of the conventional crossbow, as known in the former case of Chinese Patent No. 207344, it includes a crossbow body, a crossbow wing horizontally arranged at the front end of the crossbow body, a bowstring connecting the two ends of the crossbow wing, and a link between A crossbow puller that interacts with the bowstring. Pull the string through the stringer to create tension and interact with the crossbow crossbow machine.

However, the well-known crossbow is the same as the arrows fired by ordinary bows and arrows, and both have a certain lethality. If they are slightly careless during the operation, it may easily cause injuries to users or others. However, most of the cross bows currently in the market do not have a safety device, which is prone to accidental accidents.

For this reason, although the industry proposes to improve the structure and install a safety device on the crossbow, the safety device is designed to activate this safety device when the user tightens the bowstring and snaps it on the crossbow crossbow machine. Because the safety device cannot be triggered automatically, there are often situations where the user forgets it, which results in this safety device being useless.

In addition, because the conventional insurance devices have only a single structure and do not have multiple insurance functions, the benefits of insurance protection cannot be effectively achieved, so it is necessary to improve them.

In view of the problems and deficiencies of the above-mentioned conventional techniques, the main object of the present invention is to provide a crossbow trigger structure, which overcomes the lack and inconvenience of the conventional crossbow insurance mechanism by designing the structure.

According to the above object of the present invention, a crossbow trigger structure is provided, which is arranged on a crossbow crossbow body and serves as a bow and arrow that constrains the crossbow's bowstring and crossbow body. , And an air string insurance group. The crossbow box is connected to the crossbow body to provide a space for accommodation. The trigger set is housed in the crossbow box and the crossbow body respectively, to restrain the bowstring from operating. The trigger insurance group and the air string insurance group are respectively housed in a crossbow box and interact with the trigger group, selectively restraining the trigger group action. With the composition of the above components, the trigger insurance group and the air string insurance group are triggered together when the bowstring is tightened, so as to form an automatic lock to ensure the safety of the crossbow.

10‧‧‧ Crossbow Box

12‧‧‧ half shell

121‧‧‧ Chamber

1212 ‧ ‧ ‧ wall

122, 142‧‧‧arrow tail tank

123、143‧‧‧Arrow

124‧‧‧ trigger connection hole

1251, 1252, 1253, 1254‧‧‧‧ First, second, third, and fourth reset pieces

1261, 1262, 1263 ‧‧‧ first, second and third limit end faces

1271, 1272, 1273, 1274 ‧‧‧ first, second, third, and fourth pivot posts

1281‧‧‧Locking guide groove

129‧‧‧ Link groove

14‧‧‧shell cover

142‧‧‧Arrow

143‧‧‧Arrow

1481‧‧‧Locking guide groove

21‧‧‧Trigger

221, 221, 223‧‧‧‧ First, second and third trigger reset

24‧‧‧Trigger

242‧‧‧T type body

244, 246‧‧‧‧First and Second Blocks

25‧‧‧ connecting rod

26‧‧‧Trigger latch

261‧‧‧First arm

262‧‧‧second arm

263‧‧‧Third Arm

27‧‧‧ Hooked Claw

271‧‧‧claw arm

272‧‧‧claw hook

273‧‧‧Avoidance

274‧‧‧stop

31‧‧‧Limiting trough

321, 322‧‧‧ limit slot

331, 332‧‧‧‧Slide block slide

34‧‧‧ Elastic stop

35‧‧‧ insurance dial

351‧‧‧Locking Department

352, 353‧‧‧‧Slide department

3522, 3524‧‧‧ first and second positioning grooves

354, 355‧‧‧‧Lever

42‧‧‧Pressure reset

44‧‧‧ briquetting

91‧‧‧ Crossbow

92‧‧‧ Bow String

93‧‧‧ Bow and Arrow

FIG. 1 is a schematic diagram of an embodiment of the present invention.

Fig. 2 is a partial exploded view of the embodiment shown in Fig. 1.

Fig. 3 is a partial exploded view of the embodiment shown in Fig. 2;

Fig. 4 is a schematic sectional view of the embodiment shown in Fig. 3.

Figure 5 is an exploded view of the embodiment shown in Figure 3.

Figure 6 is a schematic view of a half-shell component of the present invention.

Fig. 7 is a schematic view of a shell cover member of the present invention.

Fig. 8 is a schematic diagram of the safety dial block member of the present invention.

Fig. 9 is a schematic view of the operation of the embodiment of the present invention (1).

Fig. 10 is a schematic diagram of the operation of the embodiment of the present invention (2).

Fig. 11 is a schematic diagram of the operation of the embodiment of the present invention (3).

Fig. 12 is a schematic view of the operation of the embodiment of the present invention (four).

Fig. 13 is a schematic diagram (five) of the operation of the embodiment of the present invention.

Fig. 14 is a schematic view of the operation of the embodiment of the present invention (six).

Fig. 15 is a schematic diagram (No. 7) of the operation of the embodiment of the present invention.

Fig. 16 is a schematic view of the operation of the embodiment of the present invention (eight).

In the following, please refer to the related drawings to further explain the cross-bow trigger structure embodiment of the present invention. In order to facilitate understanding of the embodiment of the present invention, the same components are denoted by the same symbols below.

Please refer to FIG. 1 to FIG. 9. The crossbow trigger structure of the present invention is provided on a crossbow body 91 for restraining (releasing) a bowstring 92 and an arrow 93, which includes a crossbow box 10 and a trigger unit , A trigger insurance group, and an air string insurance group.

The above crossbow box 10, as shown in Figs. 1, 2, 5 to 7, is housed in a preset position of the crossbow body 91 and is composed of a mating half shell 12 and a shell cover 14; A chamber 121, two arrow tail receptacles 122, 142, two arrow tail cutaways 123, 143, a trigger connection hole 124, a first, second, third, and fourth reset member receptacles 1251, 1252, 1253, 1254, A first, second and third limit end faces 1261, 1262, 1263, a first, second, third and fourth pivot post 1271, 1272, 1273, 1274, a locking guide groove 1281, 1481, and a connecting rod capacity Slot 129.

The cavity 121, as shown in FIG. 6, is surrounded by a surrounding wall 1212 and is formed on an end surface of the half-shell 12 that is in contact with the shell cover 14.

Each of the arrow tail receptacles 122 and 142, as shown in FIGS. 5 to 7, is symmetrically recessed in the cavity 121 of the half shell 12, and the end faces of the shell cover 14 and the half shell 12 abut , And communicate with the arrow slot 911 of the crossbow body 91.

The arrow tail section grooves 123 and 143, as shown in FIGS. 5 to 7, are symmetrically formed through the half shell 12 and the shell cover 14, and communicate with the arrow tail grooves 122 and 142.

The trigger connection hole 124, as shown in FIG. 6, is formed through the lower end surface of the half-shell 12 and communicates with the cavity 121 and the outside.

The first, second, third, and fourth resetting member receptacles 1251, 1252, 1253, and 1254, as shown in FIG. 6, are defined by the surrounding wall 1212 of the chamber 121 and are formed in a predetermined position of the chamber.

The first, second, and third limiting end faces 1261, 1262, and 1263, as shown in FIG. 6, are defined by the surrounding wall 1212 of the cavity 121 and formed at a predetermined position of the cavity.

The first, second, third, and fourth pivot posts 1271, 1272, 1273, and 1274, as shown in FIG. 6, are erected in the preset positions of the half-shell 12 corresponding to the chamber 121.

The locking guide grooves 1281 and 1481 are formed in the top surface of the crossbow box 10 (half shell 12 and / or shell cover 14) as shown in Figs. 2 to 7. During implementation, it can be optionally omitted.

The connecting rod accommodating groove 129, as shown in FIG. 6, is formed as a depression on the lower end surface of the crossbow box 10 (half-shell 12 and / or cover 14). During implementation, it can be optionally omitted.

The above-mentioned arrow presser 16, as shown in Figs. 1 and 2, is locked on the top surface of the crossbow box 10, or is locked corresponding to the lock guide slot 1281, 1481, and one end extends above the arrow slot 911 of the crossbow body 91 .

The above tactical fishbone 18, as shown in Figures 1 and 2, is locked on the top surface of the crossbow box 10, or is locked corresponding to the lock guide groove 1281, 1481, and presses against one end of the arrow 16 to provide accessories. (Such as a sight).

The above trigger set, as shown in Figures 2, 4 to 8, is located in the chamber 121 and the crossbow 91 of the crossbow box 10, and includes a trigger member 21, a first, second and third trigger reset member 221. 221, 223, a trigger 24, a connecting rod 25, a trigger catch 26, and a hook claw 27.

The trigger member 21 is shown in FIGS. 1 and 2 and is pivotally arranged at a preset position of the crossbow body 91.

The first, second, and third trigger resetting members 221, 221, and 223, as shown in Figs. 1, 2, 5 to 7, are respectively accommodated in the first, second, and third resetting member receiving slots 1251, 1252, respectively. 1253.

The trigger 24, as shown in FIGS. 4 and 5, has a T-shaped body 242 and a first and second stopper portions 244 and 246. The aforementioned T-shaped body 242 is pivotally connected to the front end of the horizontal section with the first pivot post 1271, and the end of the vertical section penetrates the trigger connection hole 124 to the outside of the crossbow box 10, and is pushed by the first trigger reset member 221 to The horizontal section of the T-shaped body 242 is different from the other end of the first pivot post 1271 and normally presses against the first limit end surface 1261 of the cavity 121. The first and second blocking portions 244 and 246 are erected at the front and rear ends of the top surface of a T-shaped body 242.

One end of the connecting rod 25 is pivotally connected to the trigger 21, and the other end is pivotally connected to the end of the vertical section of the T-shaped body 242 exposed outside the crossbow box 10 of the trigger 24.

The trigger latching member 26, as shown in FIGS. 4 to 6, is pivotally connected to the second pivot post 1272 and has a first arm 261 extending upward and a second arm extending downward. 262, and a third arm 263 extending forward; wherein, the second arm 262 is pushed up by the second trigger reset member 222, so that the third arm 263 is selectively pressed against the second limit end surface 1262 and the trigger 24 (one end of the horizontal section of the T-shaped body 242).

The hook claw 27, as shown in Figs. 4 to 6, is pivotally connected to the third pivot post 1273, and has a claw arm 271, a claw hook 272, an avoidance port 273, and a stopper integrally formed.架 部 274。 Blocking section 274. The claw hook 272 is formed by extending downward from one end of the claw arm 271 in the extending direction. The avoidance opening 273 is formed through the claw hook 282 and corresponds to the arrow groove 911 of the crossbow body 91. The stop portion 274 is formed by extending downward from the claw arm 271 toward the lower end surface, and corresponds to the avoidance opening 273. The hooking claw 27 is pushed up by the third trigger resetting member 223, so that the hooking claw 27 is near one end of the claw hook 272, and normally abuts against the surrounding wall 1212 of the chamber 121; the other claw arm 271 and the trigger latching member 26 The first arm 261 abuts and interacts.

The above trigger insurance group, as shown in Figs. 3 to 8, includes a limit receiving slot 31, two limit slot holes 321, 322, two block slideways 331, 332, an elastic limit member 34, and a The safety dial 35 and a troubleshooting hole 36.

The limiting volume 31 is formed on the end surface of the recessed half-shell 12 in the cavity 121.

Each of the limiting slot holes 321 and 322, as shown in Figs. 3 to 8, is formed concentrically through the crossbow box 10 (half shell 12 and shell cover 14), and matches the position of the limiting slot 31.

Each of the block slideways 331 and 332, as shown in FIGS. 6 to 7, is a cavity 121 that recesses the end surface of the half-shell 12 symmetrically, and the end surface of the cover 14 and the half-shell 12 abutting each other. , And communicate with the limit receiving groove 31 and each of the limit slot holes 321 and 322.

The elastic limiting member 34, as shown in FIG. 5 to FIG. 6, is accommodated in the limiting receiving groove 31, and one end of the elastic limiting member 34 protrudes into the block slideway 331 of the half shell 12. This end exits the block slide 331.

The insurance dial 35, as shown in Figs. 5 to 6, and 8, is corresponding to each of the dial slideways 331, 332 and each of the limit slot holes 321, 322 for receiving and penetrating. The movement of the claw 27 is displaced between a locked position or an unlocked position. The safety dial 35 has a lock piece portion 351, two slide piece portions 352, 353, and two lever portions 354, 355 integrally formed.

Each of the aforementioned sliding piece portions 352 and 353 is disposed at the two ends of the locking piece portion 351 orthogonally, respectively, and between the end surfaces facing the two sliding piece portions 352 and 353, a chord can be defined respectively. The hollow area where the claw arm 271 and the stopper 274 of the claw 27 move partially. Each slide plate portion 352 and 353 are respectively provided correspondingly to the slide block slideways 331 and 332. Among them, at least one slide plate portion 352 (353) faces the lower end surface and has a first and second positioning grooves 3522 and 3524. When the 35 is shifted to the locked position, the first positioning groove 3522 and the stopper 34 protrude from one end of the slide block 331 to engage with each other, and when the safety dial 35 is shifted to the unlocked position, the second positioning groove 3524 and the limit The position piece 34 protrudes from one end of the block slideway 331 to be engaged with each other.

The two lever portions 354 and 355 are arranged orthogonally to the slider portions 352 and 353, respectively, and are disposed on the outer sides of the slider portions 352 and 353, and extend through the limit slots 321 and 322 protruding from the crossbow box 10 ( The outer half of the half shell 12 and the cover 14). During the implementation, when the lock piece 351 is set to the locked position due to the displacement of the safety dial 35, it is just above the second stopper portion 246 of the trigger 24, thereby blocking the trigger of the trigger 24; and the safety dial 35 is displaced When the unlocking position is set, it corresponds to between the first and second stopper portions 244 and 246 of the triggering member 24 and does not interfere with the movement of the triggering member 24.

The aforesaid troubleshooting hole 36, as shown in FIG. 6, is formed through the half-shell 12, corresponding to the path of the stopper 34 protruding from the slideway 331, and connecting the slideway 331 to the stopper groove. 31. When the stopper 34 is convenient for jamming, the tool can be moved from the outside of the half-shell 12 through the troubleshooting hole 36 to move the stopper 34.

The above-mentioned air string insurance group is housed in the cavity 121 and includes a pressing block resetting member 42 and a pressing block 44.

The pressure piece resetting member 42 is shown in FIGS. 5, 6 and 9 and is housed in the fourth resetting member receiving groove 1254.

The pressure block 44 is shown in Figs. 5, 6, and 9 and is pivotally connected to the fourth pivot post 1274. One end of the pressure block reset member 42 pushes normally toward the arrow tail grooves 122 and 142. And is located on the movement path of the first blocking portion 244 of the triggering member 24 to form a blocking on the triggering member 24.

Therefore, the above is an introduction to the components and assembly methods of the crossbow trigger structure of a preferred embodiment of the present invention, and the operating characteristics of the embodiments of the present invention are described below.

<Wind and synchronized lock>

Please refer to Figures 9 to 13 to pull the bowstring 92 into the crossbow box 10 through the tail slits 123 and 143 through the puller of the crossbow body 91 (not shown in the art). Abutting on the stopper portion 274 of the hook claw 27, the linked hook claw 27 is swung around the third pivot post 1273; in the process, the claw arm 271 is opposite to the other end of the claw hook 272, and is displaced upward and compresses the third trigger The reset member 223 is no longer pressed against the first arm 261 of the trigger latching member 26, so that the trigger latching member 26 is pushed by the second trigger resetting member 222, and pivots with the second pivot post 1272 as the center. Reply, let the third arm 263 of the trigger latch 26 press against the second limit end face 1262 and the trigger 24 (one end of the horizontal section of the T-shaped body 242), and let the first arm of the trigger latch 26 The 261 pair of claw arms 271 form abutment toward the lower end surface.

In addition, the claw arm 271 swings downward near the end of the claw hook 272, and pushes the locking piece portion 351 of the safety pad 35, so that the safety pad 35 is pushed from the unlocked position to the locked position, and the slide piece 352 faces downward The first positioning groove 3522 on the end face is separated from the limiting member 34, and the second positioning groove 3524 and the limiting member 34 are changed instead. At this time, the locking piece portion 351 of the safety dial 35 is located above the first stop portion 244 of the trigger member 24.

Return the string puller to hook the bow string 92 on the hook 272 of the hook claw 27. Since the other end is pressed against the first arm 261 of the trigger latch 26, the bow string 92 cannot be released. This completes the winding and automatic locking operation. Because the locking piece portion 351 of the safety dial 35 is located above the second stop portion 246 of the trigger member 24, the user cannot pull down the trigger member 21 to link the trigger member 24 to trigger.

When the lock block 35 was intentionally moved from the locked position to the unlocked position, the pressure block 44 of the air string insurance group was pushed up by the block reset member 42 to the movement path of the trigger member 24 (the first stop 244). The trigger member 24 is still unable to be linked by the trigger member 21.

<Up Arrow and Unlock Air Defense String>

Please refer to Figures 13 to 14, slide the bow and arrow 93 in the arrow slot 911 of the crossbow body 91, and insert the tail of the bow and arrow 93 into the crossbow machine through the tail slits 123 and 143 and the tail grooves 122 and 142. In the box 10, when the tail of the bow and arrow 93 enters the crossbow box 10, it will simultaneously press against the pressure block 44 of the air string insurance group, so that the pressure block 44 pivots around the fourth pivot post 1274, and compresses the pressure. The block restoring member 42 is configured to avoid the movement path of the triggering member 24 (the first stopper 244).

<Unlock trigger insurance and fire>

Please refer to FIGS. 14 to 16, the lever portions 354 and 355 protruding from the crossbow box 10 are clamped to move the locking paddle 35 from the locked position to the unlocked position; in the process, the original sliding blade portion 352 The first positioning groove 3522 fits with the limiting member 34, and the second positioning groove 3524 fits with the limiting member 34 after displacement.

At this time, the lock piece portion 351 of the safety dial 35 is located between the first and second stop portions 244 and 246 of the trigger member 24, so that the user can link the link 25 and the trigger member 24 through the trigger member 21 to allow the trigger Piece 24 is centered on the first pivot post 1271 Swing with the heart, push the third arm 263 of the trigger latch 26 to swing about the second pivot post 1272 as the center, so that the second arm 263 no longer abuts against the claw arm 271 of the hook claw 27, so that The hooking claw 27 is pushed up by the third trigger reset member 223. The hooking hook 272 of the hooking claw 27 swings upward to escape from the resistance to the bowstring 92. At this time, the bowstring 92 will move the bow 93 along the arrow slot of the crossbow 91. 911 advances, achieving the purpose of shooting bow and arrow 93.

The above description is only a preferred embodiment of the present invention, and is intended to clarify the features of the present invention, and is not intended to limit the scope of the embodiments of the present invention. Equal changes made by those skilled in the art based on the present invention , And changes well known to those skilled in the art, should still fall within the scope of the present invention.

Claims (8)

A crossbow trigger structure is provided on a crossbow body for restraining (releasing) a bowstring and an arrow. The crossbow trigger structure includes a crossbow box that is placed in a preset position of the crossbow body and includes a half shell that is mated. The body and a shell cover have a cavity formed in the half shell, a trigger connection hole connecting the cavity and the outside formed in the half shell, and are symmetrically divided between the half shell and the half shell Two arrow tail grooves and two arrow tail cut grooves; a trigger unit, including: a trigger member, pivotally arranged at the preset position of the crossbow body; a first, second and third trigger reset member, accommodated in One end of the chamber is in abutment with a surrounding wall of the chamber; a trigger is pivotally arranged in the chamber so that the trigger connection hole is extended downward to the outside of the crossbow box, and is in contact with the first The trigger reset member abuts, and the pusher is pushed to cause the trigger member to normally pivot and press against one of the first limit end faces of the chamber; a connecting rod, both ends of which are pivotally connected to the trigger and the trigger member, respectively; A trigger latch is pivotally disposed in the cavity and abuts against the second trigger resetting member. When the trigger latch is pushed, the trigger latch is normally pivoted to the trigger. A hook claw is pivotally disposed in the chamber and abuts the third trigger resetting member, and one end of the hook claw is normally pivoted to abut the trigger catch by being pushed by it, The other end selectively buckles the bowstring; a trigger safety group includes: a limit receiving groove formed by recessing the end face of the half-shell in the cavity; two limit slot openings passing through the half-shell The body and the shell cover are formed and matched with the position of the limiting volume; two slide blocks are symmetrically provided on the end faces of the half shell and the shell cover respectively, and are matched with each other. The limit receiving slot is in communication with each of the limit slot holes; an elastic limit piece is accommodated in the limit receiving slot, one end of which protrudes from each of the matching block slideways; an insurance dial is corresponding to each The slide block of the dial block and each of the limit slot holes are accommodated and extended, and are displaced between a locked position or an unlocked position by external force, and have a locking piece portion, and two orthogonally connected to the locking piece portion and are slidably arranged. At the slide piece part of the slide of the paddle block, two orthogonally connected to the slide piece part and penetrating each of the limit slot holes, and one of the other slide piece parts One of the first and second positioning grooves is fitted with one end of the matching elastic limit piece; an air string insurance group includes: a pressure piece reset member, which is accommodated in the chamber, and one end is further connected to the surrounding of the chamber. The wall abuts; a pressure block is pivotally arranged in the cavity and abuts the pressure block reset member, and one end of the pressure block is normally pivoted toward each of the arrow tail receptacles by being pushed by the pressure block and is located in the cavity. On the movement path of the trigger member, wherein when the safety dial is in the locked position, the first positioning groove is fitted with one end of the elastic stopper, so that the lock piece portion is located on the movement path of the trigger member. When the safety dial is in the unlocked position, one end of the elastic stopper is detached from the first positioning groove and fits with the second positioning groove, and the locking piece portion is far from the movement path of the trigger. The cross-bow trigger structure described in item 1 of the scope of patent application, wherein the half-shell further includes a boundary defined by the surrounding wall, and sequentially provides the first, second, and third trigger reset pieces and the pressure block reset piece accommodation. One of the first, second, third, and fourth reset member receptacles; and one, two, and one of the trigger, the trigger latch, and the normal contact of the pressure block defined by the surrounding wall and provided in order. Three limit end faces. The crossbow trigger structure according to item 2 of the scope of the patent application, wherein the trigger member has a T-shaped body and a first and a second stopper standing on the top surface of the T-shaped body, wherein the insurance dial When in the locked position, the lock piece portion corresponds to the second stop portion, and the normal block pivoting corresponds to the first stop portion; in addition, the front end of the horizontal section of the T-shaped body and one of the chambers The first pivot post is pivoted, and the rear end is normally pressed against the first limit end surface. The crossbow trigger structure according to item 3 of the patent application scope, wherein the trigger catch is pivotally connected to a second pivot post of the chamber, and has a first arm extending upward, A second arm extending downward and a third arm extending forward, and the first arm is interacted by the hook claw, and the second arm is pushed up by the second trigger resetting member, so that The third arm is selectively pressed against the second limiting end surface and the trigger. The crossbow trigger structure according to item 4 of the scope of patent application, wherein the hook claw is pivotally connected to a third pivot post of the chamber, has a claw arm integrally formed, and a direction extending from the claw arm A claw hook formed with an end facing downward, an avoidance opening formed through the claw hook, and a stop portion extending downward from the claw arm and corresponding to the avoidance opening. The crossbow trigger structure described in item 1 of the scope of patent application, wherein the trigger insurance group further includes a troubleshooting hole formed through the half-shell, corresponding to the stopper protruding from each of the slideways of the block. path. The crossbow trigger structure described in item 1 of the scope of patent application, wherein the top surface of the crossbow box is further locked with an arrow pressing device. The crossbow trigger structure described in item 1 of the scope of the patent application, wherein the top surface of the crossbow box is further locked with a tactical fishbone.