阅读说明：本技术 弓臂装置 (Bow arm device ) 是由 刘吉昌 于 2018-09-07 设计创作，主要内容包括：本发明一种弓臂装置,其包括：弓身；至少一衔接座组设于弓身任一端,至少一衔接座于对应弓身的一侧进一步设有二接槽,该二接槽在对应弓身的一侧以及相邻侧形成有槽口,该二接槽之间形成隔板,以螺锁件贯穿弓身并再贯穿隔板；至少一弓臂以一端由槽口插入于接槽内,该至少一弓臂另一端以及弓身未设有衔接座的一端进一步装设弓弦组件；弹性塞块夹设于弓身及至少一弓臂之间,弹性塞块一端且对应弓身进一步设有缓冲部,而该弓身对应缓冲部则设弧缺槽,弹性塞块的另一端则朝至少一衔接座延伸,通过该弹性塞块夹设的位置进而配合不同使用者所操作。(The invention provides a bow arm device, comprising: a bow body; at least one joining seat is assembled at any end of the bow body, two connecting grooves are further arranged on one side of the joining seat corresponding to the bow body, notches are formed on one side and the adjacent side of the two connecting grooves corresponding to the bow body, a partition plate is formed between the two connecting grooves, and a screw locking piece penetrates through the bow body and then penetrates through the partition plate; one end of at least one bow arm is inserted into the connecting groove from the groove opening, and the other end of the at least one bow arm and one end of the bow body which is not provided with the connecting seat are further provided with a bowstring component; the elastic plug block is clamped between the bow body and the at least one bow arm, one end of the elastic plug block is further provided with a buffering part corresponding to the bow body, the bow body is provided with an arc notch corresponding to the buffering part, and the other end of the elastic plug block extends towards the at least one connecting seat and is further matched with different users to operate through the clamping position of the elastic plug block.)

1. A pantograph arm assembly, comprising:

a bow body;

at least one connecting seat, which is arranged at any end of the bow body, and is further provided with two connecting grooves at one side corresponding to the bow body, wherein the two connecting grooves form a notch at one side corresponding to the bow body and the adjacent side, a clapboard is formed between the two connecting grooves of the at least one connecting seat, a screw lock piece penetrates through the bow body and then penetrates through the clapboard, and the at least one connecting seat is fixed on the bow body by the penetration lock of the screw lock piece;

at least one bow arm with one end inserted into the connecting slot via the notch of the connecting seat and with the other end and the end without connecting seat in the bow body further installed with one bow string assembly;

the elastic plug block is clamped between the bow body and at least one bow arm, a buffer part is further arranged at one end of the elastic plug block and corresponds to the bow body, an arc notch groove is arranged at the bow body corresponding to the buffer part, the buffer part is contained in the arc notch groove, and the other end of the elastic plug block extends towards at least one connecting seat;

the elastic chock block is clamped at a position and has elastic characteristics, so that elastic pressing margin is formed between each bow arm and the bow body, the elastic chock block can be simply and quickly pulled, and the elastic margin between the at least one bow arm and the bow body can be adjusted and changed by matching with the replacement of the elastic chock blocks with different elastic coefficients, so that the elastic chock block is matched with different users to operate.

2. The bow arm device according to claim 1, wherein the bow further comprises a bottom portion and two pivot portions, wherein the bottom portion is recessed to form a recessed step on two sides of the bottom portion, the two pivot portions are recessed to form a recessed step on a side corresponding to the recessed steps, the pivot portions are assembled with the recessed steps by the recessed steps, a shaft is inserted through the bottom portion and the pivot portions, and a plurality of screws are inserted through the two ends of the shaft and abut against the outer peripheral surface of the pivot portions, thereby firmly and tightly clamping the pivot portions and the bottom portion.

3. The arm device according to claim 2, wherein the slot of the two slots of the at least one engagement base is further divided into a long opening section and a short opening section, each long opening section corresponding to the body of the bow and each short opening section corresponding to each arm.

4. The arm apparatus of claim 3, wherein the at least one arm insertion set further comprises two arm sections at one end of the short opening section, and the arm sections of the at least one arm are inserted into the receiving slots corresponding to the short opening sections.

5. The pantograph arm assembly of claim 4, wherein each of said resilient blocks extends through a respective aperture in said bumper portion, said apertures being configured to increase a bumper resiliency margin of each resilient block.

6. The pantograph arm device of claim 5, wherein the spring rate of each spring block is greater than or equal to 100 GPa.

7. The arm apparatus of claim 6, wherein said resilient blocks are made of rubber, low density polyethylene, polypropylene, polyethylene terephthalate, polystyrene, nylon, oak, or carbon fiber reinforced plastic.

Technical Field

The invention relates to a bow arm device, in particular to a technology applied to the field of bows and arrows, which mainly aims to be matched with different users to quickly change and adjust the elasticity of a bow arm in a firing range without disassembling complex components to generate danger so as to achieve the change of different strokes, namely the invention with excellent practicability.

Background

The bow and arrow is a dangerous and impatient weapon, but with the progress of the times, the bow and arrow gradually becomes one of the sports items, even in large-scale competition, the shooting competition is established, thereby the method of turning the bow and arrow in the heart is changed, however, the bow and arrow has been developed to have various types, crossbow, hand-pull bow, and the like, the use modes of each type are different, but the structural design on the bow arm and the bow string is not changed, the bow and arrow are driven to be shot towards the target by the pulling of the bow string and the tension of the bow arm, however, the reason why the method is out of alignment is mostly due to the problem of the aiming of the user, but some users have no exact adjustment on the bow and arrow, the arm strength of each person is originally different, so whether the bow string can be pulled fully in the process of pulling the bow string or not affects the shooting range and accuracy of the bow and arrow, therefore, the user can adjust before operation or directly select the bow and arrow with proper arm strength for use.

However, the bow and the arrow are divided into a soft bow and a hard bow, the soft bow is a bow arm with great deformation degree, when a user pulls the bowstring, the original shape of the bow arm can be changed, the bowstring can be pulled to the rearmost, and the bow and the arrow can be ejected after the bowstring is released; the hard bow part is suitable for users with larger strength, the ejected bow has extremely high shooting speed and destructive power due to the harder elasticity of the bow arm, so the users with larger arm strength can shoot with the hard bow, so the bow types suitable for the users with different arm strength are different, if all users are matched, the bow arm must be disassembled and replaced with time, but the replacement and the disassembly of the bow arm are not easy, the bow string must be fixed by a special tool to avoid separation and loosening, then the disassembly of the bow arm can be carried out, all the installation parts of the bow arm must be aligned in the installation process, finally the assembly can be completed only by removing the special fixing tool, then the adjustment is carried out, the whole group of bow reaches the optimal use state, the time consumption and the spirit consumption are achieved, if the replacement of the bow arm is not proper, the above-mentioned actions must be repeated again, and the process is too complicated for the user and does not conform to the rapidity and simplicity of the operation flow. Therefore, the related manufacturers must carefully consider the problems of the bow and arrow, and how to improve the problems to meet the needs of the public.

In view of the above situation, the present inventors have invested much time in studying related knowledge, comparing the merits with each other, conducting research and development of related products, and going through many experiments and tests, and finally have developed a kind of bow-arm device that improves the above drawbacks to meet the needs of the public.

Disclosure of Invention

In order to overcome the defects that the prior bow and arrow needs to be frequently replaced by matched bow arms according to the difference of arm strength of different users, the disassembly and replacement of the bow arms are too troublesome and dangerous, and time and physical power are wasted, the invention provides a bow arm device, which provides rapidity and convenience for the replacement of the bow arms, and can adjust according to the arm strength of the users without disassembling too complicated components so as to maintain better shooting speed, shooting range and precision.

The technical scheme adopted by the invention for solving the technical problems is as follows:

an arm device, comprising: a bow body; at least one connecting seat, which is arranged at any end of the bow body, and is further provided with two connecting grooves at one side corresponding to the bow body, wherein the two connecting grooves form a notch at one side corresponding to the bow body and the adjacent side, a clapboard is formed between the two connecting grooves of the at least one connecting seat, a screw lock piece penetrates through the bow body and then penetrates through the clapboard, and the at least one connecting seat is fixed on the bow body by the penetration lock of the screw lock piece; at least one bow arm with one end inserted into the connecting slot via the notch of the connecting seat and with the other end and the end without connecting seat in the bow body further installed with one bow string assembly; the elastic plug block is clamped between the bow body and at least one bow arm, a buffer part is further arranged at one end of the elastic plug block and corresponds to the bow body, an arc notch groove is arranged at the bow body corresponding to the buffer part, the buffer part is contained in the arc notch groove, and the other end of the elastic plug block extends towards at least one connecting seat; the elastic chock block is clamped at a position and has elastic characteristics, so that elastic pressing margin is formed between each bow arm and the bow body, the elastic chock block can be simply and quickly pulled, and the elastic margin between the at least one bow arm and the bow body can be adjusted and changed by matching with the replacement of the elastic chock blocks with different elastic coefficients, so that the elastic chock block is matched with different users to operate.

According to the main technical features defined in the present invention, a further technical feature is that the bow further includes a bottom connection portion and two pivot portions, two sides of the bottom connection portion are recessed to form a recessed step, one side of each recessed step corresponding to each pivot portion is recessed to form a recessed step, each pivot portion is butt-jointed with each recessed step by the recessed step, an axis passes through the bottom connection portion and each pivot portion, and a plurality of screws penetrate through two ends of the axis and abut against the outer peripheral surface of each pivot portion, thereby firmly and tightly clamping each pivot portion and the bottom connection portion.

According to the main technical features defined in the present invention, a further technical feature is that the slot of the two connecting slots of the at least one connecting seat is further divided into a long opening section and a short opening section, wherein each long opening section corresponds to the bow body, and each short opening section corresponds to each bow arm.

According to the above-defined main technical features of the present invention, a further technical feature is that the at least one bow arm insertion set further has two arm sections at one end of the short opening section, and the arm sections of the at least one bow arm are inserted into the connecting grooves corresponding to the short opening sections.

According to the main technical features defined in the present invention, a further technical feature is that each of the elastic stoppers is provided with a through hole penetrating through the buffering portion, and the through holes are arranged to increase the buffering elastic margin of each of the elastic stoppers.

According to the main technical characteristics defined above for the present invention, a further technical characteristic is that the elastic modulus of each elastic plug is equal to or greater than 100 GPa.

According to the main technical features defined in the present invention, a further technical feature is that the material of each elastic stopper may be rubber, low density polyethylene, polypropylene, polyethylene terephthalate, polystyrene, nylon, oak or carbon fiber reinforced plastic.

The invention has the advantages that before the bow holder is ready to shoot, the bow string on the bow can be tried to be pulled, whether the bow string can be pulled smoothly or not can be checked, if the bow string can not be pulled smoothly, the elastic plug blocks can be replaced, the arrangement of the elastic plug blocks can provide that the bow holder can pull the bow string with the best strength and release the bow string in the shooting process, through the elasticity of the elastic plug blocks, the bow arms can not generate over hard bounce force with the bow body and the connecting seats under the reaction force of the bow string, the shooting range and the shooting speed of the shot bow and arrow are more stable and the shooting accuracy is better, importantly, the bow holder with different arm forces can achieve the best shooting according to the self limitation, the bow holder does not need to consume time and physical force for dismounting to replace the bow arms, and the parts can not be combined smoothly, more importantly, any risk and other loss are generated.

The bow arm has the advantages that the bow arm is quick and convenient to replace, and can be adjusted according to the arm strength of a user without disassembling excessively complex components, so that better shooting speed, shooting range and precision are maintained.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a perspective view of the entire set of arches of the present invention.

Fig. 2 is a partially enlarged schematic view of fig. 1.

Fig. 3 is an exploded perspective view of fig. 2.

Fig. 4 is a sectional view of the line IV-IV of fig. 2.

Fig. 5 is a schematic diagram of the action of the bow arm of fig. 4 that is pulled by the bow string to compress the elastic chock.

FIG. 6 is a schematic view of the compression of the resilient plug of the present invention with different spring rates.

The reference numbers in the figures illustrate:

1 bow body 11 arc notch

12 undercut 121

13 hinge part 131 embedded step

2 connecting base 21 connecting groove

22 slot 221 long section

222 short section 23 baffle

3 screw locking 4 bow arm

41 support arm section 5 axle center

6 bowstring component 7 elastic chock

71 buffer 72 perforation

8 spiral lock spare

Detailed Description

Referring to fig. 1 to 6, an arm device according to the present invention includes: a bow body 1 for holding the bow; at least one linking seat 2 is a rectangular block-shaped body, it is assembled at any end of the bow 1, and should link the seat 2 and correspond to one side of the bow 1 and further set up two grooves 21 concavely, and should link the groove 21 and form a notch 22 on one side and adjacent side of the bow 1 correspondingly, make both sides of each groove 21 open, will form a baffle 23 between the two grooves 21 of each linking seat 2, and run through the bow 1 and run through the baffle 23 with a screw lock 3, should link the seat 2 and fix to the bow 1 with the threading lock of the screw lock 3; at least one bow arm 4, one end of which is inserted into the connecting groove 21 from the groove 22 of each connecting seat 2, the at least one bow arm 4 and the bow body 1 are arranged with an included angle and form a shape similar to the shape of ㄈ, the other end of the at least one bow arm 4 and one end of the bow body 1 not provided with the connecting seat 2 are further provided with a bow string component 6, so that the bow string component 6 can be pulled by a bow holder to shoot a bow; and an elastic plug 7 can be compressed elastically, it is located between bow 1 and at least a bow arm 4, the elastic plug 7 is in one end and correspond to bow 1 and have a buffer part 71 further, and the bow corresponds to buffer part 71 and has a arc to lack the trough 11, the buffer part 71 is held in arc to lack the trough 11, another end of the elastic plug 7 extends towards at least a connection seat 2; the elastic blocks 7 are simply and rapidly drawn and pulled, and the elastic margin between the two bow arms 4 and the bow body 1 can be adjusted and changed by matching with the replacement of the elastic blocks 7 with different elastic coefficients, so that the operation of different users can be matched.

According to the main technical features described above for the present invention, in a simple way, the bow holder can pull the string-bow assembly 6 before shooting to see whether the string-bow assembly 6 can be pulled smoothly, if the string-bow assembly 6 is too tight to be pulled with a larger force, that is, if the elasticity of the at least one arm 4 is too hard relative to the bow body 1, the bow holder can pull out the elastic plugs 7 to further replace the suitable elastic plugs 7, where the suitable elastic plugs 7 have a larger elastic coefficient, so that the bow holder can pull the at least one arm 4 relative to the bow body 1 to the maximum deformation, so that the string-bow assembly 6 can be pulled to the maximum extent, the bow holder can easily shoot out the bow without consuming time and physical strength to detach the arm 4, and the occurrence of danger can be avoided, and for the bow holder with a smaller arm force, the elastic chock 7 with larger elastic coefficient can not provide easy pulling outside the bow-string component 6, and can further keep the original optimal shooting speed, stroke and precision; on the contrary, if the user with a large arm force holds the bow, the elastic plug 7 with a low elastic coefficient can be used to reduce the elasticity between the at least one bow arm 4 and the bow 1, and the bow is ejected by purely using the elastic force of the bowstring component 6, but the elastic plug 7 can also prevent the elastic rebound of each bow arm 4 from colliding with each linking seat 2 to cause damage, thereby protecting the bow arm 4 and the linking seat 2, as shown in fig. 4 to 6.

According to the main technical features described above for the present invention, further detailed technical features are described, first, for each connecting seat 2, the slot 22 of each connecting seat 2 is designed to be divided into a long opening section 221 and a short opening section 222, the long opening section 221 corresponds to the bow 1, the short opening section 222 corresponds to the bow 4, one end of the at least one bow 4 is inserted into the connecting groove 21 through the short opening section 222, the bow 1 can be pressed against the bow 4 toward the long opening section 221 by the locking relationship between the at least one connecting seat 2 and the bow 1, so that the elastic plug 7 can be firmly clamped between the bow 4 and the bow 1, while one end of the at least one bow 4 inserted into the short opening section 222 has two supporting arm sections 41, each supporting arm section 41 is inserted into each connecting groove 21 of the corresponding connecting seat 2, and the supporting arm sections 41 are combined with the lower connecting seat 2, so as to make the connection between each bow arm 4 and the connecting base 2 more stable, please refer to fig. 4 and fig. 5. In addition, as shown in fig. 3, the bow 1 further includes a bottom portion 12 and two hinge portions 13 at one end thereof having an arc notch 11, the two sides of the bottom connection portion 12 are recessed to form a recessed step 121, and the two hinge portions 13 are recessed to form an embedded step 131 corresponding to one side of each recessed step 121, the arc notch 11 of the bow 1 is set on the bottom of the two pivot parts 13, each pivot part 13 is butt jointed with each concave step 121 by the embedded step 131, and an axis 5 penetrates the bottom part 12 and each pivot part 13, and several screw members 8 are inserted and locked at two ends of the axle center 5 and abut against the outer peripheral surface of each pivotal connection portion 13, so as to tightly clamp each pivotal connection portion 13 and the bottom connection portion 12, and through the close-fitting locking setting between the bow 1 and the linking seat 2, the elastic chock 7 can be more reliably arranged between the bow 1 and the bow arm 4 and the effective pulling change of the bowstring component 6 is provided.

Further, the description will be made with respect to each elastic chock 7, each elastic chock 7 mainly provides a space for each bow arm 4 to be elastically pressed down by the pulling of the bowstring assembly 6 during the shooting process, so that each bow arm 4 can compress each elastic chock 7, however, with the arrangement of the elastic chocks 7 with different elastic coefficients, it is more possible for different bow holders to operate and use, and each elastic chock 7 can also provide different bow holders to rapidly pull and replace the elastic chocks 7 with different elastic coefficients, so in order to provide the bow holders to rapidly replace and assemble, therefore, the bottom of the bow body 1 is utilized, that is, the bow body 1 is provided with the arc slot 11 at the side corresponding to the buffer part 71 of the elastic chock 7, the buffer part 71 of the elastic chock 7 is provided to be accommodated in the corresponding arc slot 11, a larger space is formed between the bottom of the bow body 1 and the bow arm 4 by the arrangement of the arc slot 11, the elastic plug 7 can be not only reliably clamped between the bow 1 and the bow arm 4, but also easily pulled out for replacement, as shown in fig. 5 and 6.

In addition, the bow and arrow will produce slight noise during the shooting process, and the noise is easy to influence the concentration of the bow holder during the shooting process, so the invention respectively penetrates a through hole 72 in the buffer part 71 of each elastic chock 7, each through hole 72 longitudinally penetrates the buffer part 71, and the arrangement of each through hole 72 mainly provides the buffer part 71 of the elastic chock 7 with the compression margin of the buffer elasticity, more importantly, the noise produced during the shooting process can be reduced, and the noise can be kept quiet during the shooting process.