Spreader

Abstract

The utility model belongs to the technical field of sports equipment, and particularly relates to a releasing device, which comprises a main body, two cams, a cam pin, a connecting seat, a string hanger and a string hanging pin, the main body is provided with three arc-shaped finger holes, a middle arm extending forwards is arranged between the two finger holes at the upper part of the main body, the front end of the middle arm is provided with a groove, and the cam pin is connected with the connecting seat. The two cams are opposite in the left-right direction and fixedly connected together, the two cams are fixed to the front end of the middle arm through the cam pins, the rear ends of the two cams are provided with protruding parts, the protruding parts are inserted into the grooves of the middle arm, the connecting base is arranged on the front sides of the two cams, and the rear end of the connecting base is rotationally connected with the cam pins. The connecting seat is provided with an opening groove with an upward opening and penetrating front and back, a magnet is arranged at the bottom of the connecting seat, and the string hanger is hinged to the front end of the connecting seat through a string hanger pin. The device is simple in structure, convenient to use and low in cost, and compared with an existing release device, the stability is better, the adjusting amount is larger, and the device conforms to human mechanics.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of sports equipment, and particularly relates to a releasing device. BACKGROUND

[0002] As a kind of sports, archery is loved by many people;During archery, the bowstring needs to be pulled apart, and since the diameter of the bowstring is small and the tension is large, it can cause damage to the hands of the person. In order to facilitate the pulling apart of the bowstring and reduce the damage to the human body, people have designed a releasing device to assist in pulling up and releasing the bowstring.

[0003] However, the existing releasing device uses a spring or a rubber band to allow the string to hang back to reset, but the spring and the rubber band will be strained and deformed after long use, affecting the normal rebound of the string, and thus affecting the normal use of the releasing device.

[0004] Therefore, it needs to be improved. INVENTION CONTENTS

[0005] In view of the above defects in the prior art, the utility model provides a releasing device, which comprises a main body, a cam, a cam pin, a connecting seat, a string hanging and a string hanging pin, three arc-shaped finger holes are arranged on the main body, a middle arm extending forward is arranged between the two finger holes at the upper part of the main body, a groove is formed at the front end of the middle arm, the number of cams is two, the two cams are fixedly connected together and opposite to each other, the two cams are fixed at the front end of the middle arm through the cam pin, the rear end of each cam is provided with a protruding part, and the protruding part is inserted into the groove of the middle arm, the connecting seat is arranged at the front side of the two cams, and the rear end of the connecting seat is rotatably connected with the cam pin, the connecting seat is provided with an open slot with an upward opening and extending through the front and back, a magnet is arranged at the bottom of the connecting seat, the string hanging is hingedly connected to the front end of the connecting seat and located in the open slot through the string hanging pin, and the string hanging can be automatically reset by the adsorption of the magnet. The design of the above-mentioned double cam-connecting seat-string hanging can make the adjustment range wider, the fault tolerance better and the adjustment amount larger.

[0006] Optionally, the main body is an integrally formed structure made of 6061-T6 aluminum alloy.

[0007] Specifically, the whole is light in weight and low in cost.

[0008] Optionally, the material of the string hanging is 45 carbon structural steel.

[0009] Specifically, the string hanging made of such material has the characteristics of high strength and good mechanical properties, and can be attracted by the magnet.

[0010] Optionally, the upper and lower ends of the middle arm of the main body are respectively provided with a set of adjusting screw for fixing the adjusting cam, each set of adjusting screw comprises two adjusting screws, and the two adjusting screws correspond to the positions of the two protruding parts of the cam respectively.

[0011] Specifically, the four adjusting screws can be adjusted separately for different positions.

[0012] Optionally, a push rod is threadedly connected to one side of the top of the main body.

[0013] Specifically, a threaded hole is formed in each of the left and right sides of the top of the main body, and the user can select to install the push rod on any side of the main body according to the dominant hand, so as to facilitate the thumb to hold the push rod.

[0014] Optionally, the bottom of the main body is connected with a wristband through a connecting chain, and the connecting chain comprises two key rings and a chain.

[0015] Specifically, when the dispenser is not used, the user can hang the wristband on the wrist, which can not only avoid the loss of the dispenser due to random placement, but also does not affect other things, and in addition, the wristband is detachable and can be selectively worn, and the use is flexible.

[0016] Optionally, the material of the wristband is polyvinyl chloride, thermoplastic polyurethane or silicone.

[0017] Specifically, it is good in elasticity and not easy to deform.

[0018] Optionally, anti-skid lines are arranged on the concave curved surfaces of the three finger holes.

[0019] Specifically, the anti-skid lines have an anti-skid effect.

[0020] The utility model also includes other components that can make the dispenser normally used, which are all conventional technical means in the field. In addition, the devices or components not limited in the utility model all adopt conventional technical means in the field.

[0021] The working principle of the utility model is that, in use, the user holds the main body with the hand, the index finger, the middle finger and the ring finger are buckled in the three finger holes respectively, the thumb holds the push rod, the user hooks the string to the bowstring and pulls it back, in the state of pulling the string, the string hook is pulled by the bowstring and is separated from the attraction of the magnet, when the user needs to release the bow and arrow, the user slightly bends the angle of the dispenser, the string hook is separated from the bowstring, the bowstring shoots the bow and arrow, at the same time, the string hook is adsorbed by the magnet and automatically returns, and the shooting of the arrow is completed.

[0022] The utility model discloses a beneficial effect is, simple structure, convenient to use, low in cost, compare the existing scatterer, utilize the attraction of magnet and make the string hanging automatic reset, stability is better, effectively guarantee the normal use of scatterer, in addition, the design of double cam - connecting seat - string hanging makes the adjustment mode more widely, through a large number of simulation experiment's verification, its motion track can better satisfy the scatterer opportunity of contestant, accords with the biomechanics. BRIEF DESCRIPTION OF DRAWINGS

[0023] The utility model is further illustrated below in connection with the drawings and examples.

[0024] Fig. 1 It is the whole structure schematic diagram of the utility model.

[0025] Fig. 2 It is the structure schematic diagram of scatterer in string state under the utility model example.

[0026] Fig. 3 It is the structure schematic diagram of scatterer after scattering state under the utility model example.

[0027] In the drawing: 1. main body, 2. cam, 3. cam pin, 4. connecting seat, 5. string hanging, 6. string hanging pin, 7. finger hole, 8. intermediate arm, 9. set screw, 10. magnet, 11. push rod, 12. connecting chain, 13. wrist belt. DETAILED DESCRIPTION

[0028] The utility model is clearly described below in connection with the drawings in the utility model example and specific example, the description in this place is only used to explain the utility model, but does not as the limitation to the utility model. Based on the example in the utility model, all other examples that the person skilled in the art obtains under the premise of not making creative labor, any modification, equivalent replacement, improvement etc. that is done, should include in the protection scope of the utility model.

[0029] EMBODIMENT

[0030] As Figs. 1-3The utility model discloses an embodiment provides a kind of scatterer, including main body 1, cam 2, cam pin 3, connecting seat 4, string hanging 5 and string hanging pin 6, main body 1 is made of 6061-T6 aluminum alloy integrally formed structure, overall quality is light, and cost is low, three arc finger holes 7 are provided on main body 1, the concave arc surface of three finger holes 7 is all provided with anti-skid line, and good anti-skid effect is good, the two finger holes 7 between the upper portion of main body 1 are equipped with the intermediate arm 8 extending forward, and the front end of intermediate arm 8 is provided with recess;The number of cam 2 is two, and the two cams 2 are opposite and fixedly connected together, and the two cams 2 are fixed at the front end of intermediate arm 8 by cam pin 3, and the rear end of the two cams 2 is provided with protruding part, and the protruding part is inserted in the recess of intermediate arm 8, and in addition, the upper and lower ends of the intermediate arm 8 of main body 1 are also respectively provided with one for fixing and adjusting cam 2 tight screw group, each tight screw group includes two tight screws 9, and the two tight screws 9 are respectively and one by one corresponding to the position of the protruding part of the two cams 2, and four tight screws 9 can be separately adjusted for different positions;Connecting seat 4 is arranged at the front side of the two cams 2, and the rear end of connecting seat 4 is rotatably connected with cam pin 3, and connecting seat 4 is provided with opening groove with opening upwards and through front and back, and the bottom of connecting seat 4 is provided with magnet 10, and string hanging 5 is hinged at the front end of connecting seat 4 by string hanging pin 6 and is located in opening groove, and the material of string hanging 5 is 45 carbon structural steel, and the string hanging 5 made of such material has the characteristics of high strength and good mechanical properties, and can be attracted by magnet 10, and can be automatically reset by the adsorption of magnet 10.

[0031] The design of the above-mentioned double cam 2-connecting seat 4-string hanging 5 can make the adjustment range wider, the fault tolerance better, and the adjustment amount larger. When locking the four tight screws 9 to the cam 2, the rotation of the connecting seat 4 is not affected.

[0032] In addition, a push rod 11 is threadedly connected to one side of the top of the main body 1, and threaded holes are formed in the left and right sides of the top of the main body 1. The user can choose to install the push rod 11 on either side of the main body 1 according to the dominant hand, which is convenient for the thumb to hold the push rod 11.

[0033] In addition, the bottom of the main body 1 is connected with a wrist strap 13 through a connecting chain 12, and the connecting chain 12 is composed of two key rings and a chain. When the scatterer is not in use, the user can hang the wrist strap 13 on the wrist, which can avoid the scatterer from being lost due to being placed casually, and does not affect other things. In addition, the wrist strap 13 is detachable, and the user can choose to wear it, which is flexible to use. The material of the wrist strap 13 is silica gel, which is elastic and not easy to deform, and is non-toxic and odorless, harmless to the human body.

[0034] The working principle of this utility model is as follows: When in use, the user holds the main body 1 with his / her hand, with his / her index, middle and ring fingers hooked into the three finger holes 7 respectively, and his / her thumb hooked into the push rod 11. The user hooks the string hook 5 onto the bowstring and pulls it back. In the drawn state, the string hook 5 is pulled by the bowstring and is detached from the attraction of the magnet 10. When it is necessary to release the arrow, the user gently bends the angle of the release device, the string hook 5 is detached from the bowstring, the bowstring shoots the arrow, and at the same time the string hook 5 is attracted by the magnet 10 and automatically returns to its position, thus completing the shooting.

[0035] The embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A dispenser, comprising a body, a cam, a cam pin, a connecting seat, a string hanger, and a string hanger pin, characterized in that: The main body has three arc-shaped finger holes. Between the two finger holes on the upper part of the main body is a forward-extending intermediate arm. The front end of the intermediate arm has a groove. There are two cams, which are opposite each other and fixedly connected together. The two cams are fixed to the front end of the intermediate arm by cam pins. The rear end of each cam has a protrusion, which is inserted into the groove of the intermediate arm. The connecting seat is located on the front side of the two cams, and the rear end of the connecting seat is rotatably connected to the cam pin. The connecting seat has an opening slot that faces upward and runs through the front and back. A magnet is located at the bottom of the connecting seat. The string hanger is hinged to the front end of the connecting seat by a string hanger pin.

2. The dispenser according to claim 1, characterized in that: The main body is a one-piece molded structure made of aluminum alloy.

3. The dispenser according to claim 2, characterized in that: The stringer is made of carbon structural steel.

4. The dispenser according to claim 3, characterized in that: The upper and lower ends of the middle arm of the main body are respectively provided with a set screw group for fixing the adjustment cam. Each set screw group includes two set screws, and the two set screws correspond one-to-one with the positions of the protrusions of the two cams.

5. The dispenser according to claim 4, characterized in that: A push rod is threadedly connected to one side of the top of the main body.

6. The dispenser according to claim 5, characterized in that: The bottom of the main body is connected to a wristband via a connecting chain, which consists of two key rings and a chain.

7. The dispenser according to claim 6, characterized in that: The wristband is made of polyvinyl chloride, thermoplastic polyurethane, or silicone.

8. The dispenser according to claim 7, characterized in that: Anti-slip textures are provided on the concave arc surfaces of the three finger holes.

Images