KR100395890B1 - Handgrip - Google Patents

Abstract

The present invention includes a pair of handle portions coupled to the rotation shaft and mutually accessible and spaced apart; A spring member elastically biased in a direction in which the handle portions are spaced apart from each other and having a pair of fixed ends fixed to the handle portions, respectively; It characterized in that it comprises an elastic adjustment unit for adjusting so that at least one of the fixed position of the fixed end of the spring member is approached and separated from the rotation shaft. Thereby, a gripper is provided which can easily vary the intensity of elasticity.

Description

Gripper {HANDGRIP}

The present invention relates to a gripper group.

In general, the gripper is a kind of exercise equipment used for the strength of the hands and forearms, it is easy to handle and carry, as well as low cost has the advantage that can be used easily anywhere, anytime, anywhere.

The gripper grips the pair of handles by the user, and then presses the pair of handles to access each other so that the muscles are applied to the hand or the arm by the elastic force of the spring. If you do so, the principle of returning to the original state. Therefore, the user can improve the strength of the hand or the forearm by repeating the act of approaching and separating the pair of handle portions several times.

By the way, in the conventional gripper, the spring provided to the gripper to give elasticity is fixed at a fixed position, there is a disadvantage that the size of the elasticity of a single gripper is always constant. Therefore, if the size of the elastic force of the gripper can be arbitrarily changed by the user, it is possible to have the advantage that both the child and the adult with a constant grip strength can use a single gripper.

Accordingly, it is an object of the present invention to provide a gripper device capable of easily varying the strength of elasticity.

1 is a perspective view of a gripper according to a first embodiment of the present invention,

2 is a partially exploded perspective view of FIG. 1, FIG.

3 is a perspective view of the main part of FIG. 1;

4 is a perspective view of a gripper according to a second embodiment of the present invention;

5 is a partially exploded perspective view of FIG. 4, FIG.

6 is an operating state diagram of a gripper virtually showing a state in which the strength of elasticity of the gripper of FIG. 4 is varied;

7 and 8 are partial cross-sectional views of the gripper according to the third and fourth embodiments of the present invention, respectively.

* Explanation of symbols for the main parts of the drawings

10,10 ': gripper 13a, 13b, 13a', 13b ': handle

16a, 16a ': first working arm 16b, 16b': second working arm

20,20 ': Spring member 30,30': Elastic adjustment part

31: rotating shaft bolt 31 ': pin variable part

38: movable piece

The object is, in accordance with the present invention, a pair of handles coupled by a rotational shaft and mutually accessible and spaced apart; A spring member elastically biased in a direction in which the handle portions are spaced apart from each other and having a pair of fixed ends fixed to the handle portions, respectively; At least one fixed position of both of the fixed end of the spring member is achieved by a gripper, characterized in that it comprises an elastic adjustment unit for adjusting so as to be approached and separated from the rotating shaft.

Here, the handle portion may further include a pair of working arms that are integrally extended and mutually accessible and spaced apart by rotating the handle portion.

At this time, the resilient control unit, the rotating shaft bolt which is rotatably provided along the longitudinal direction of the working arm on at least one of the pair of working arms; A movable piece coupled to the rotating shaft bolt and movable along the axial direction of the rotating shaft bolt when the rotating shaft bolt is rotated; It is provided on both fixed ends of the spring member may be configured to include a engaging portion is coupled to the movable piece and the other end is coupled to the other working arm.

The working arm provided with the rotating shaft bolt is made of a hollow tubular body, the outer side surface is advantageously formed with a guide slot along the longitudinal direction of the rotating shaft.

On the other hand, the resilient control unit, and a fixed pin selectively coupled to a plurality of pin receiving portion formed at a predetermined interval along the longitudinal direction of at least one of the pair of working arms; It is provided on both fixed ends of the spring member may be configured to include a catch portion having one end coupled to the fixing pin and the other end coupled to the other working arm.

Hereinafter, each embodiment of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 1, the gripper 10 according to the first embodiment of the present invention includes a pair of handles 13a and 13b coupled to each other by a rotation shaft 12 and mutually accessible and spaced apart. The handle portion (1) has a pair of working arms (16a, 16b) that are also accessible and spaced apart by rotation of the handle portions (13a, 13b) and a pair of fixed ends respectively coupled to the working arms (16a, 16b). 13a and 13b have a spring member 20 elastically biased in a direction away from each other.

The handle portions 13a and 13b are mutually curved with respect to the vertical axis to facilitate gripping, and either one of the handle portions 13a and 13b has a grip portion in which four fingers except for the thumb are gripped ( 14) is provided. Here, since FIG. 1 is a view showing a first embodiment of the present invention, the handle portions 13a and 13b may be formed to have a straight shape without being curved as shown in the drawing, and the grip portion 14 is gripped. It may also be employed in the form of a rubber pad (not shown) to prevent slipping, not grooves.

The handle portions 13a and 13b are provided with working arms 16a and 16b which are integrally extended to the handle portions 13a and 13b respectively and are also mutually approached and spaced apart by the rotation of the handle portions 13a and 13b. In the first embodiment, the working arms 16a and 16b rotate in the direction in which the handle portions 13a and 13b are spaced apart from each other, and in the direction in which the handle portions 13a and 13b are spaced apart from each other. Rotate to Hereinafter, for convenience of explanation, of the pair of working arms 16a and 16b, the working arm made of a hollow tubular body is called the first working arm 16a and the rest of the working arms 16a and 16b.

A spring member 20 is interposed between the first and second working arms 16a and 16b. The spring member 20 has both fixed ends coupled to the pair of actuating arms 16a and 16b, respectively, and opposes the actuating arms 16a and 16b to mutually open when the handle portions 13a and 13b approach each other. Tension in the direction of tension.

On the other hand, between the pair of working arms 16a and 16b and the spring member 20, as shown in Fig. 2, at least one fixed position of both fixed ends of the spring member 20 is actuated to the working arm 16a. By changing along the longitudinal direction of, 16b), there is provided an elasticity control unit 30 to adjust the elasticity imparted to the grip force 10.

The elasticity adjusting unit 30 is coupled to the rotary shaft bolt 31 rotatably provided along the longitudinal direction of the first action arm 16a and the rotary shaft bolt 31 to rotate the rotary shaft bolt 31 when the rotary shaft bolt 31 is rotated. The movable piece 38 movable along the axial direction of the 31 and both fixed ends of the spring member 20 are provided at one end thereof is coupled to the movable piece 38 and the other end thereof is coupled to the second working arm 16b. It has a locking part.

The rotating shaft bolt 31 accommodated in the hollow first action arm 16a includes a knob 32 exposed to the outside and operable by a user, an insertion portion 33 inserted into the first action arm 16a, And a shaft portion 34 which connects the knob 32 and the insertion portion 33 and has a male thread on the outside thereof. Between the insertion portion 33 and the shaft portion 34, the curved portion 44 is curved in a radially inward direction. ) Is formed. Thus, the pin block 37 is inserted into the pin hole 35 formed in the first action arm 16a so that the side of the pin block 37 is disposed at the curved portion 44, thereby being fixed to the first action arm 16a. By means of the pin block 37, the rotating shaft bolt 31 is rotatable in a fixed position.

The movable piece 38 is screwed to the shaft portion 34 of the rotary shaft bolt 31 and extends from the movable portion 39 and the movable member 39 which are movable by the rotation of the rotary shaft bolt 31. The coupling portion 40 is coupled to any one of both of the engaging portions. In the first embodiment, the locking portion coupled to the coupling portion 40 among the locking portions of the spring member 20 is called the first locking portion 20a and the remainder is called the second locking portion 20b. The coupling part 40 takes the form of an opening in the plate surface so that the first locking part 20a of the spring member 20 can be held, but it can be replaced with a hook shape as well as a ring shape. Of course, it can form.

On the plate surface of the first working arm 16a, a predetermined guide is provided along the longitudinal direction of the rotating shaft bolt 31 so that the movable piece 38 to which the first catching portion 20a of the spring member 20 is coupled can move. The slot 17 is formed. At the end of the second working arm 16b, a predetermined pin receiving hole (not shown) is formed. As the pin receiving hole, a fixing pin 19 is inserted to hold the second catching portion 20b of the spring member 20.

With this configuration, the state of use of the gripper 10 according to the first embodiment of the present invention will be described with reference to FIG. 3.

First, when a relatively strong adult wants to use the gripper 10 according to the first embodiment of the present invention, the movable piece 38 is turned by turning the knob 32 of the rotating shaft bolt 31 in one direction. It is biased toward (32). Then, the first catching portion 20a of the spring member 20 coupled to the movable piece 38 is also disposed toward the knob 32, so that the size of the elasticity is greatest in the gripper 10 according to the first embodiment. It can be formed.

On the contrary, in the case where a young child having a weak grip force wants to use the gripper 10 according to the first embodiment of the present invention, the movable piece 38 is inserted by rotating the rotating shaft bolt 31 in the opposite direction as described above. It is biased toward (33) side. Then, the first catching portion 20a of the spring member 20 coupled to the movable piece 38 is also arranged toward the inserting portion 33 side, whereby the size of elasticity is small in the gripper 10 according to the first embodiment. As a result, even a small child can use the gripper 10 easily.

Thus, in the first embodiment of the present invention, by rotating the rotary shaft bolt 31 by operating the knob 32, it is possible to adjust the size of the elasticity formed in the gripper 10, regardless of gender The gripper 10 can be used in accordance with the strength of the grip force.

On the other hand, in the gripper (10a) according to the second embodiment of the present invention, the elastic control unit 30 'is configured as shown in Figs. 4 to 6, only the same reference numerals are shown in the drawings, and the detailed description thereof will be omitted.

As shown, the elasticity control unit 30 'is predetermined along the longitudinal direction of the working arms 16a', 16b 'on either of the pair of working arms 16a', 16b '. A plurality of pin variable parts 31 'provided at a spaced interval of the hooks, and hooks 20a' and 20b 'provided at either one of the fixed ends 20a' and selectively coupled to the pin variable parts 31 '. Has a locking portion. Hereinafter, the working arm provided with the pin variable portion 31 'is called the first working arm 16a' and the rest is called the second working arm 16b '. In addition, the locking ring coupled to the pin variable portion 31 'is called the first locking ring 20a' and the rest of the locking ring is called the second locking ring 20b '.

In the second embodiment of the present invention, the pin variable parts 31 'are formed with a plurality of pin accommodation portions 32a' to 32e 'formed at predetermined intervals along the longitudinal direction of the first working arm 16a'. ) And a fixing pin 33 'that is selectively coupled to the pin receiving portions 32a' to 32e '. The first catching ring 20a 'is formed by bending the end portion in an annular shape so as to be held by the fixing pin 33'. On the side of the fixing pin (33 ') is formed an escape prevention groove (35') to prevent the separation of the first locking ring (20a ') curved in a ring shape.

Then, the second catching ring 20b 'of the spring member 20' is fixed to the end of the second working arm 16b '. At this time, a pin accommodation hole 17 'is also formed in the second working arm 16b' to facilitate assembly, and the pin accommodation hole 17 'is provided with a pin preventing the groove 19'. 18 'is inserted. In addition, the second locking ring 20b 'of the spring member 20' is held in the separation preventing groove 19 'of the pin 18'.

With this configuration, the state of use of the gripper 10a according to the second embodiment of the present invention will be described with reference to FIG.

First, in a case where an adult having a large grip strength wants to use the gripper 10a according to the second embodiment, the pin receiving portion 32a 'formed at the top of the plurality of pin receiving portions 32a' to 32e '. After the fixing pin 33 'is inserted into the fixing pin 33', the first catching ring 20a 'of the spring member 20' is held by the fixing pin 33 ', thereby allowing the gripper 10a to have a size of elasticity. It is possible to form the largest.

On the contrary, when the grip strength is weak, such as a young child, the fixing pin 33 'is inserted into the pin receiving portion 32e' formed at the bottom of the plurality of pin receiving portions 32a 'to 32e', By allowing the first catching ring 20a 'of the spring member 20' to be held therein, a small child can easily use the gripper 10a.

As described above, in the second embodiment of the present invention, the fixing pin 33 'is inserted into any one of the plurality of pin receiving portions 32a' to 32e 'and the first catching ring of the spring member 20' 20a ') can be held so that the gripper 10a can be used in accordance with the strength of its grip.

In the above-described embodiment, the second engaging portion of the spring member is fixed to the second working arm, but the pin actuating portion may also be provided on the second working arm so that the strength of the grip force can be adjusted more variously. There is nothing to say. In addition, in another embodiment, the number of the pin receiving portion may be formed to be configured to be able to adjust the strength of the grip more finely.

In the above embodiments, a spring member having a tensile force is employed. However, unlike the drawing, the operation of the handle portion and the working arm, when configured in the form of a general scissors, can be replaced by a spring member having a compressive force. This is illustrated in the embodiment in FIGS. 7 and 8.

7 is a partial cross-sectional view of a gripper according to a third embodiment of the present invention. As shown in this figure, the gripper 10b according to the third embodiment of the present invention is coupled by the pivot shaft 54 and has a pair of handle portions 50a and 50b which are mutually accessible and spaced apart. The spring member 60 is interposed between the handle portions 50a and 50b and elastically biases in a direction in which the handle portions 50a and 50b are spaced apart from each other. In the third embodiment, the compression spring is adopted as the spring member 60.

The rotating shaft 54 is provided in the edge part of each handle part 50a, 50b. The handle portions 50a and 50b are bent to each other with the rotation shaft 54 interposed therebetween. End portions of the handle portions 50a and 50b are formed so that one side partially surrounds a portion of the other side such that the handle portions 50a and 50b are not spaced apart from each other. Hereinafter, for convenience of description, the handle part disposed on the left side of FIG. 7 is referred to as the left handle part 50a and the handle part disposed on the right side is referred to as the right handle part 50b and distinguished from the reference numerals.

The left handle part 50a has a grip part 51a and a bent part 52a bent with respect to the grip part 51a. Inside the bent portion 52a, a locking projection 56 is inserted into which the second locking portion 60a of the spring member 60 is inserted and held. At this time, a part of the locking protrusion 56 is embedded in the bent portion 52a and is rotatably supported by the pin 57, and the remaining portion 56 is provided to be exposed from the bent portion 52a. Thus, it can easily correspond to the rotation of the spring member (60).

In addition, the position of the locking projection 56 is provided so as to correspond to the center region of the rotating shaft bolt 31 'to which the movable piece 38' is moved, when adjusting the position of the spring member 60, each handle 50a, 50b) can be prevented from being in mutual access.

The right handle portion 50b also has a grip portion 51b. And it has the flat part 52b connected to the holding part 51b. The flat part 52b is provided with an elasticity adjusting part 30 'that adjusts the elasticity of the spring member 60. Since the elastic control unit 30 ′ disclosed in FIG. 7 has the same configuration as the elastic control unit disclosed in the above-described first embodiment, description thereof is omitted and only reference numerals are distinguished.

By such a configuration, when a young child having a relatively weak grip force wants to use the gripper 10b according to the third embodiment of the present invention, the knob 32 'of the rotating shaft bolt 31' is rotated in one direction to move. Make sure piece 38 'is biased toward knob 32'. Then, since the 1st catching part 60b of the spring member 60 couple | bonded with the movable piece 38 'is also arrange | positioned toward the knob 32', the distance to the rotating shaft 54 is shortened. In such a state, when the pair of holding portions 51a and 51b are pressed in the approaching direction, the gripper 10b according to the third embodiment can have the smallest size of elasticity, so that even a small child can easily grip the gripper 10b. ) Can be used.

On the contrary, when a relatively strong adult wants to use the gripper 10b according to the third embodiment, the movable piece 38 'is inserted into the insertion part 33 by rotating the rotary shaft bolt 31' in the opposite direction as described above. It is biased toward ')'. Then, since the 1st catching part 60b of the spring member 60 couple | bonded with the movable piece 38 'is also arrange | positioned at the insertion part 33' side, the distance from the rotation shaft 54 becomes large. Therefore, the gripper 10b according to the third embodiment has the greatest size of elasticity, so that the muscles having strong muscle strength can use the gripper 10b.

Meanwhile, FIG. 8 shows a gripper according to a fourth embodiment of the present invention. The gripper 10c according to the fourth embodiment has a plurality of locking projections 70a to 70e formed on the elastic control portion formed on the right handle 50b '. Therefore, one end 60b 'of the spring member 60' employed as the compression spring is coupled to any one of the engaging projections 70a to 70e in the right handle 50b ', and the other end 60a'. By coupling to the engaging projection 56 'provided on the left handle portion 50a', the same effect as in FIG.

In this case, as shown in FIG. 7, the position of the locking protrusion 56 ′ provided in the left handle 50 a ′ is provided so as to correspond to the center axis of the plurality of locking protrusions 70 a ˜ 70 f formed in the right handle 50 b ′. When the spring member 60 'is moved in position, it is possible to prevent the pair of handle portions 50a' and 50b 'from being in close proximity to each other by the repulsive force.

If the position of the spring member 60 'is to be changed, the stopper 80 provided adjacent to the rotating shaft 54' is rotated as shown by the dotted line. Then, the pair of handle portions 50a 'and 50b' are spaced apart from each other by the repulsive force of the spring member 60 'which is the compression spring. At this time, if the position of the spring member 60 'is changed and then the stopper 80 is inserted into the groove provided at the end of the left handle portion 50a', the handle portions 50a 'and 50b' are not spaced apart. It can be arrange | positioned in a fixed position, and may use the gripper 10c in this state.

As described above, according to the present invention, there is provided a gripping force capable of easily varying the strength of elasticity.

Claims (5)

A pair of handle portions coupled by a rotation shaft and mutually accessible and spaced apart; A spring member elastically biased in a direction in which the handle portions are spaced apart from each other and having a pair of fixed ends fixed to the handle portions, respectively; And a resilient adjustment unit for adjusting the fixed position of at least one of both fixed ends of the spring member to be approached and separated from the rotation shaft. The method of claim 1, And a pair of working arms extending integrally with each of the handle portions to be accessible and spaced apart from each other by rotating the handle portion. The method of claim 2, The elasticity control unit, A rotating shaft bolt provided on at least one of the pair of working arms to be rotatable along the longitudinal direction of the working arm; A movable piece coupled to the rotating shaft bolt and movable along the axial direction of the rotating shaft bolt when the rotating shaft bolt is rotated; The gripper is provided on both fixed ends of the spring member, one end is coupled to the movable piece and the other end is engaged with the other working arm. The method of claim 3, The working arm provided with the rotating shaft bolt is made of a hollow tubular body, the gripper, characterized in that the outer surface is formed with a guide slot along the longitudinal direction of the rotating shaft. The method of claim 2, The elasticity control unit, A fixing pin selectively coupled to a plurality of pin accommodation portions formed at predetermined intervals along at least one of the pair of working arms in a longitudinal direction; The gripper is provided on both fixed ends of the spring member, one end is coupled to the fixing pin and the other end is engaged with the other working arm.