TWI693372B - Retracting device for pull handle of folding bow - Google Patents

Abstract

The utility model relates to a retracting device for a pull handle of a folding bow, which comprises a gun body, a pull handle group and a telescopic retractor group. One end of the pull handle group is pivoted to the gun body and the other end is moved toward and away from the gun handle. The bottom surface of the group is provided with a sliding port, and the pivot group of the retractable retractor group is accommodated in the handle group and contains an elastic retracting member, a supporting rod, a limit gear plate and a stopper, and the stretching of the elastic retracting member is driven The support rod rotates, and the rotation of the support rod rotates the limit gear to rotate together, and the stopper is pivotally arranged at the sliding handle group where the sliding port is provided, and one end of the stopper is normal The teeth of the limit gear are stuck against, and the other end of the stopper penetrates through the sliding port. When the pivoting motion of the stopper catches and releases the limit gear, it indirectly restricts Rewinding of the elastic receivable.

Description

Retracting device for pull handle of folding bow

The present invention relates to a folding bow pull handle retraction device, especially a technique applied in the field of shooting. Its main feature is that it provides the user with a relatively easy and safe way to retract the pull handle when operating the folding bow handle repeatedly. In order to facilitate the subsequent shooting operation, it is an invention with excellent practicability.

Folded bow is one of the types of bows and arrows. Please refer to Patent No. I591314 "Folding Bow Pulling Device". The operation method of this bow type is mainly to use the repeated pivoting of the stretching group to pull the bow, which in turn drives the bow string towards Pull the rear to form a ready-to-shoot state. After completion, set the arrow body on the bow and arrow, and finally press the trigger to release the bow string, and use the elastic force to fire the arrow body. This completes a series of shooting processes, but this bow type is in operation There are several problems. First of all, for the user, this type of bow has a strong shooting power, so the bow string must be pulled very tightly to get a strong shooting power, and the generally tight bow string is pulling It must be pulled with great force. For users with less strength, the pulling force of the stretching group must be controlled with greater force. Users with low strength must consume great power and It takes time to pull the stretching group back. Another problem is that if the user releases his hand during the control of the stretching group's recovery, the stretching group will pop up in the opposite direction of the recovery, which may cause the user's injury. For a long time, the ejection of the hands is also easy to cause the wear of the parts, so the related industry must think about how to improve to solve the problems encountered in the operation of the stretching group of the folding bow.

In view of the above situation, the inventors put in a lot of time to study relevant knowledge, compare the advantages and disadvantages, conduct research and development of related products, and have gone through many experiments and tests, and finally launched a "folding handle pull-back device" 『Improve the above deficiencies to meet the needs of the public.

The main purpose of the present invention is to provide a more labor-saving and safe control mode, which can provide users with easy and fast operation of the bow during shooting, and can also protect the user's safety in operation, which improves the practice. The operation of the folding bow of the known technology will not be able to successfully reset the stretching group because of the user's low strength, and it will take more effort and time, and the user's unintentional release may also cause danger and acceleration. Damage to parts, etc. To this end, the present inventors have made great efforts to achieve the objectives and effects of the foregoing invention. The present invention provides a folding bow pull handle retraction device, which includes: a gun body with a gun body and a gun handle, the gun handle is connected at one end to At one end of the gun body, a trigger is provided at the angle between the gun handle and the gun body; a pull handle group, one end of which is pivotally arranged at the other end of the gun body, and the other end of the pull handle group faces The position of the handle is close to and far away, and the pull handle group is approached to the handle and is fastened to the gun handle with a fastener group. In addition, the pull handle group is further provided with a slide on the bottom surface and near the position where the fastener group is provided Mouth; and a retractable retractor group whose pivot group is received in the handle group, and the retractable retractor group is adjacent to the sliding port, and the retractable retractor group includes an elastic retractor, a A supporting rod, a limiting gear disc and a stopper, the supporting rod is pivotally grouped in the pull handle group, and the elastic retracting member is arranged at the supporting rod with one end, and the other end of the elastic retracting member After spiral winding, it passes through the pull handle group and is joined to a set of buckle parts of the gun body, and the limiting gear plate is fixed to the support rod and is arranged side by side with the elastic retracting member at a distance from each other, the elastic The stretching of the retracting member drives the support rod to rotate, and the rotation of the support rod rotates the limit gear to rotate together, and the stopper is pivotally arranged at the sliding handle where the slider is provided, and One end of the stopper is normally stuck against the teeth of the limit gear, and the other end of the stopper passes through the sliding port when the stopper The pivoting movement of the snap-in and release of the limit gear disc indirectly restricts the retracting of the elastic retractor. When the stopper releases the limit gear disc, the elastic retractor can be placed on the handle The group is stretched and extended to form a controllable state when pivoting relative to the gun body away from the gun handle, and when the stopper pivots and snaps against the limit gear, the stopper restricts the rotation of the limit gear However, it indirectly restricts the extension of the elastic retractor and forms a restricted state.

According to the above description of the present invention, during the process of erecting the bow and arrow, when the user wants to use the pivot of the pull handle group to reset the bow string, the elastic force of the elastic retractor plus the user's pull The pulling force of the handle set can make the operation of pulling the handle set easier and effortless, providing the user with no arm pain during the subsequent archery process, so that the user can maintain better Shooting status. Therefore, the present invention can be said to be a practical and progressive invention, which is worthy of promotion by the industry and made public.

1: gun body

11: Gun body

113: trigger element

12: Gun handle

122: Pillar

123: Positioning column

14: Buckle

2: handle group

21: Slide

22: Pin

23: Spring

3: fastener set

31: hook fastener

311: Card bump

312: Hook

32: Spring

4: Telescopic retractor group

41: Flexible Receiving

42: pole

43: Stopper

431: Cutting Control Department

432: Pressing part

44: limit chainring

The first figure is a perspective schematic view of the present invention.

The second figure is a partially exploded perspective view of the present invention.

The third figure is a partial perspective view of the first figure.

The fourth picture is the internal schematic diagram of the handle set of the third picture.

The fifth figure is a schematic cross-sectional view of the V-V line segment of the first figure.

The sixth figure is a schematic diagram of the pivoting movement of the pull handle set of the present invention to the furthest point relative to the gun body, and the stopper pivoting.

The seventh figure is a partially enlarged schematic view of the sixth figure.

The eighth picture is a schematic diagram of the action of the spring member driving the stop member to reset and snap against the limit gear after the pivoting of the handle set in the sixth picture.

The ninth picture is a schematic diagram of the action of the stopper snapping against the limit gear plate and stopping the pivoting of the handle set during the process of resetting the handle of the handle set toward the gun handle.

In order to clearly explain that the present invention can achieve the above objectives and effects, the features and functions of the embodiments of the present invention are described in detail with reference to the drawings. Please refer to the first figure to the eighth figure, a folding handle pull-back device of the present invention includes: a gun body 1, which has a gun body 11 and a gun handle 12, the gun handle 12 is connected at one end At one end of the gun body 11, a trigger member 113 is provided at an angle between the gun handle 12 and the gun body 11; a handle set 2, one end of which is pivotally arranged at the other end of the gun body 11, the pull The other end of the handle group 2 approaches and moves away from where the handle 12 is located, and the handle group 2 approaches the handle 12 and is fastened to the handle 12 with a fastener group 3, and the handle group 2 A sliding opening 21 is further provided on the bottom surface and close to the position of the fastener set 3; and a telescopic retractor set 4 whose pivot set is received in the handle set 2 and the telescopic retractor set 4 is adjacent to The sliding port 21 and the retractable retractor set 4 include an elastic retracting member 41, a supporting rod 42, a limiting gear 44 and a stopper 43, the supporting rod 42 is pivotally assembled to the handle In the group 2, one end of the elastic retractor 41 is fixed to the supporting rod 42, and the other end of the elastic retractor 41 is spirally wound after passing through the handle group 2 and joined to a part of the gun body 1 The buckle portion 14 (and the buckle portion 14 of the present creation is presented as an opening for the end of the gun handle 12, but the fixing of the elastic retractor 41 is not restricted by the gun handle 12), and the limit The chainring 44 is fixed to the support rod 42 and is arranged side by side with the elastic retractor 41 at a distance from each other. The stretching of the elastic retractor 41 drives the support rod 42 to rotate, and the rotation of the support rod 42 links the support rod 42 The limit gear 44 rotates together, and the stopper 43 is pivotally disposed at the sliding handle 21 where the sliding port 21 is provided, and one end of the stopper 43 is normally stuck against the limit gear 44 and the other end of the stopper 43 penetrates through the sliding opening 21, when the pivoting motion of the stopper 43 snaps and releases the limiting gear 44 indirectly restricts the elastic volume When the stopper 43 releases the limit gear 44, the elastic retractor 41 can be pulled in When the handle group 2 pivots away from the gun body 12 relative to the gun body 1, it stretches and extends and forms a controllable state, and when the stopper 43 pivots and snaps against the limit gear 44, the stopper 43 restricts The rotation of the limit gear 44 indirectly limits the stretching and extension of the elastic retractor 41 and forms a limited state (the foregoing is the main technical feature of the main embodiment of the present invention, which corresponds to the content of the first item of the patent application of this case In order to know the purpose and implementation of the present invention in detail, the technical features described in the scope of the patent applications of the rest of the applications are for the detailed description of the first item of the patent application scope or additional technical features, not for limiting the scope of the patent application (The definition of the first item should be understood that the first item of the patent scope of this case does not necessarily include the technical features described in the scope of the remaining subsidiary patent applications).

According to the above description, please refer to the fourth to eighth figures, when the user is shooting the bow and arrow, the initial step is to pull the bow string to the shooting position, so the pivot of the pull handle set 2 is used to drive the The hair buckling device on the gun body 11 moves toward the bowstring direction, and hooks the bowstring. After completion, the user pivots the handle set 2 again to reset. At this time, the hair buckle device will move and reset along the original position. You can drive the bowstring towards the rear and pull it tight, and then you can set the bow and arrow on the gun body 11 to prepare for shooting. However, in the process of resetting the handle set 2, it is known that the bowstring is extremely tight, so it is more powerful In the process of pulling the bowstring, a small user must use great force to pull. Therefore, in order to provide users with easy operation, the present invention utilizes the setting of the retractable retractor group 4, when the user pulls the handle When the group 2 pivots out from the direction of the gun handle 12 to form a controllable state, and during the pivoting process of the handle group 2, the setting of the teeth of the limit gear 44 causes the pulling of the handle group 2 to drive The elastic retracting member 41 stretches and stretches elastically, and the elastic retracting member 41 and the limiting gear 44 both use the supporting rod 42 as the axis, so the elastic retracting member 41 will drive the limiting tooth through the supporting rod 42 The disc 44 rotates together. At this time, the rotation of the limit gear 44 will cause the stopper 43 to form a tooth jumping action relative to the limit gear 44, thereby allowing the user to quickly swing the handle set 2 to pull the bowstring; and When the user needs to pivot the handle set 2 to return to its original position and the gun handle 12 When buckling, the elastic winding force of the elastic winding member 41 is matched with the pulling force applied by the user, so that the user does not need to reset the pivoting of the handle group 2 pivotally, which is easy and labor-saving. During the process, the stopper 43 must be turned to make the stopper 43 and the limit gear 44 form a controllable state, so that the pivoting of the handle set 2 can be performed, and the elastic retracting member 41 and the pulling force exerted by the user can allow the user to keep the physical strength and carry out the subsequent shooting operation, which is different from the conventional technology, which requires a lot of power to pull the bow string, resulting in the subsequent inability to perform the shooting operation. Figures 6 to 9 are shown, and the second figure is used as an auxiliary explanation.

In addition, in order to prevent the user from having unexpected things during the pivoting and resetting operation of the handle set 2 (such as hand weakness, forgetting to open the insurance, etc.), the use of the stopper 43 can allow the user to operate The operation is suspended at any time during the process, the sliding port 21 is connected to the inside of the handle group 2, and the stopper 43 includes all control parts 431 and a pressing part 432, the pressing part 432 is connected to the cut One side of the control portion 431 is located inside the handle group 2, and the cutting control portion 431 partially passes through the sliding port 21 and is located outside the handle group 2, and the stopper 43 pivots on the sliding port 21 Swing and press the pressing portion 432 against the limit gear 44 to limit the rotation to form a restricted state. For simplicity, please refer to the ninth figure, and assist with the second figure. When the user is pulling the handle set When the pivoting operation of 2 is about to pull the bow string, after confirming that the bow string has been hooked, the user can touch the cutting control portion 431 with his finger and apply force to slide, so that the stopper 43 is opened along the sliding opening 21 The pivoting action of the direction, and the swinging of the cutting and controlling portion 431 drives the pressing portion 432 to move together (as indicated by the solid arrow in the seventh figure, the swinging direction of the stopper 43), which is the normal pivoting of the user The operation of resetting; when a short pause is needed in the process of resetting the pivot, the stopper 43 can be controlled by pivoting again (as indicated by the hollow arrow in the seventh figure to the other pivoting direction of the stopper 43) , The stopper 43 drives the displacement of the pressing part 432 by the cutting control part 431, and the displacement of the pressing part 432 can be snapped with the end toward the limit gear 44 so that the elasticity can be indirectly Receiving 41 to restrict without letting the bomb The retractable piece 41 is self-winding, so that the user can perform other things, check, rest, etc., or when the handle group 2 is suddenly weak during the reset process, the stopper 43 can also be slid The pivoting operation of the handle set 2 is interrupted, allowing the user to continue to switch the stopper 43 after a short rest in a timely manner to form a released state, and then the pivoting reset of the handle set 2 can be performed, thereby providing For better safety protection, the reset of the handle set 2 is prevented to cause problems such as pinching and bumping of the user.

Continuing the above description, in order to allow the user to maintain safety when stopping the pivoting of the handle set 2 halfway, and not to be injured by the pivoting of the handle set 2 and being injured, the stopper 43 must be reliable The locking gear 44 is clamped, so the handle group 2 is further provided with a pin 22 and a spring member 23, the pin 22 is adjacent to the telescopic retractor group 4, and the spring member 23 is sleeved at one end The other end of the pin 22 is connected to the end of the stopper 43 that is clamped against the limit gear 44. When the pivot of the stopper 43 is released from the limit gear 44, the stop The stop member 43 pulls the elastic stretch of the spring member 23 and generates an elastic stored force, and after the external force applied to the pivot of the stop member 43 disappears, the spring member 23 drives the stop member 43 to pivot by the elastic stored force The pendulum resets and snaps against the limit gear 44, so when the stop 43 is not pivoted, one end of the stop 43 will normally snap against the teeth of the limit gear 44 by This indirectly restricts the elastic retracting of the elastic retracting member 41, thereby effectively controlling the pivoting of the handle set 2, please refer to the seventh figure, and the second figure is for assistance. In addition, in order to allow the pull handle group 2 to reliably drive the elastic retractor 41 to be stretched and extended, the buckle portion 14 of the gun body 1 is mainly provided with an opening at the end of the gun handle 12 as the main implementation. Therefore, a bolt 122 is further provided in the assembly of the gun handle 12 corresponding to the elastic retractor 41, and one end of the elastic retractor 41 is fixed to the bolt 122, and the handle group 2 is opposite to the gun The pivot of the body 1 drives the elastic retractor 41 to stretch, please refer to the second and fifth figures.

Finally, after the user controls the pull handle group 2 to reset, in order to avoid the pull handle group 2 from disengaging from the combination with the gun handle 12, which affects the tension of the bow string and the shooting of the bow and arrow, etc., so through the buckle The setting of the component group 3 prevents the handle group 2 from detaching itself, and the fastener group 3 further includes a hook 31 and a spring 32, and one end of the hook 31 is pivotally assembled in the handle group 2 , And the spring 32 is set at one end on the handle group 2 and the other end springs against a locking protrusion 311 of the hook member 31, and the hook member 31 is pivotally arranged on the opposite end of the handle group 2 A hook portion 312 is provided. In addition, a positioning post 123 is provided in the gun handle 12. After the hook member 31 pivots into the gun handle 12, the hook portion 312 is hooked against the positioning post 123. After the handle group 2 is reset, it can be surely hooked with the gun handle 12 to prevent the handle group 2 from detaching itself and affecting the shooting. Please refer to the second and third figures.

In summary, the present invention mainly provides that the user can operate in a more easy and labor-saving manner during the reset process of operating the handle group 2, so the setting of the retractable retractor group 4 is utilized to retract with the elasticity The elastic winding force of the piece 41 cooperates with the user's own force to pull the handle group 2 to reset, so that the handle group 2 can be quickly and effortlessly reset to prevent the soreness of the arm from affecting subsequent shooting operations , And the pivoting of the stopper 43 can provide users with a short rest in operation, which is very suitable for users with less strength. Compared with the operation of folding bows listed in the prior art, due to the tightness of the bow string The setting is such that the user needs to pull the bowstring with great force. For users with less strength, it is undoubtedly that more power is wasted, which leads to the subsequent weakness of the archery operation, which cannot stabilize the shooting and affect the accuracy. The present invention has indeed improved the lack of conventional bows and problems, and obviously has a certain degree of progress and practicality. . The above are only preferred embodiments for explaining the present invention, and are not intended to limit the present invention in any form, so that any modifications made to the present invention under the same spirit of the invention Or the changes, which can be implemented according to other types and have the same effect, should still be included in the scope of protection of the present invention.

To sum up, the "pull handle pull-back device" of the present invention is indeed fully practical and cost-effective to meet the needs of industrial development, and the disclosed structural invention also has Unprecedented innovative structure, so its "novelty" should undoubtedly be considered, and the present invention can be more effective than the conventional structure. Therefore, it also has "progressiveness", which is fully in line with China's patent law. The requirements of the application requirements are to file a patent application in accordance with the law, and the Jun Bureau is urged to review it as soon as possible and give affirmation.

12: Gun handle

122: Pillar

123: Positioning column

14: Buckle

2: handle group

22: Pin

23: Spring

3: fastener set

31: hook fastener

4: Telescopic retractor group

41: Flexible Receiving

42: pole

43: Stopper

431: Cutting Control Department

432: Pressing part

44: limit chainring

Claims (6)

A retracting device for pulling handle of folding bow includes: A gun body has a gun body and a gun handle, the gun handle is connected to one end of the gun body at one end, and a trigger is provided at an angle between the gun handle and the gun body; A pull handle set, one end of which is pivotally arranged at the other end of the gun body, the other end of the pull handle set approaches and moves away from where the gun handle is located, and the pull handle set approaches toward the gun handle and uses a fastener set It is buckled to the gun handle, and the pull handle group is further provided with a sliding opening on the bottom surface and close to the position where the fastener group is provided; And a retractable retractor group whose pivot group is accommodated in the handle group, and the retractable retractor group is adjacent to the sliding opening, and the retractable retractor group includes an elastic retractor and a rod , A limit gear plate and a stopper, the support rod is pivotally assembled in the handle group, and the elastic retractor is set at the support rod at one end, and the other end of the elastic retractor is spiral After winding, the pull handle group is passed out and joined to a set of buckle parts of the gun body, and the limit gear is fixed to the support rod and is arranged side by side with the elastic retracting member at a distance from each other, the elastic retracting The extension of the part drives the support rod to rotate, and the rotation of the support rod rotates the limit gear to rotate together, and the stopper is pivotally arranged at the sliding handle group where the sliding port is provided, and the stop One end of the stopper is normally stuck against the teeth of the limit gear, and the other end of the stopper penetrates through the sliding port. When the stopper pivots to lock the limit gear Resisting and releasing, indirectly restricting the retracting of the elastic retracting member, when the stopper releases the limit gear, the elastic retracting member can stretch when the pull handle group pivots away from the gun body relative to the gun body Extend and form a controllable state, and when the stopper pivots and snaps against the limit gear, the stop restricts the rotation of the limit gear and indirectly limits the extension of the elastic retractor And form a restricted state. According to the retractable handle pull-back device described in item 1 of the patent application scope, wherein the stopper includes all control parts and a pressing part, the pressing part is connected to one side of the cutting control part and It is located inside the handle group, and the cutting part partially penetrates the sliding port and is located outside the handle group, and the stopper pivots at the sliding port and locks the limiting tooth with the pressing portion The disk is restricted from rotation. According to the retractable handle pull-back device described in item 1 of the patent application scope, a pin and a spring are further provided in the handle set, the pin is adjacent to the retractable retractor set, and the When the spring member is sleeved at one end to the other end of the pin, it is connected to the end of the stopper which is clamped against the limit gear. When the stopper pivots and releases the lock against the limit gear, the The stop member pulls the elastic stretch of the spring member and generates an elastic force storage, and after the external force applied to the pivot swing of the stop member disappears, the spring member drives the pivot swing of the stop member to reset and snap against The limit chainring. According to the retractable handle pull-back device described in item 2 of the patent application scope, a pin and a spring are further provided in the handle set, the pin is adjacent to the retractable retractor set, and the When the spring member is sleeved at one end to the other end of the pin, it is connected to the end of the stopper which is clamped against the limit gear. When the stopper pivots and releases the lock against the limit gear, the The stop member pulls the elastic stretch of the spring member and generates an elastic force storage, and after the external force applied to the pivot swing of the stop member disappears, the spring member drives the pivot swing of the stop member to reset and snap against The limit chainring. According to any one of items 1 to 4 of the patent application scope, the pull handle retracting device for a bow is further provided with a bolt on the assembly of the handle corresponding to the elastic retractor, and the elastic One end of the retracting member is fixed to the stud, and the pivoting of the handle group relative to the gun body drives the stretching of the elastic retracting member. According to the retractable handle pull-back device described in item 5 of the patent application scope, wherein the fastener set further includes a hook and a spring, one end of the hook is pivotally assembled in the handle set, The spring is elastically pressed against the other end of the pull handle group by one end, and a locking protrusion of the hook member is set, and the hook member is provided with a hook portion pivotally at the opposite end of the handle group. A positioning post is provided in the gun handle. After the pivoting member of the hook swings toward the inside of the gun handle, the hook is hooked against the positioning post.

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