WO2014207955A1 - Exercise assistance tool - Google Patents

Abstract

An exercise assistance tool comprising: a body section (11) capable of resisting elastic repulsive force and shrinking; and a pair of operation sections (12, 13) provided on each end of the body section (11). Both operation sections (12, 13) are formed in a shape so as to mutually fit when the body section (11) is shrunk.

Description

Exercise aid

The present invention relates to an exercise assisting device that assists an exerciser's exercise.

Conventionally, an exercise assisting device of a type that is pressed while being sandwiched between an exerciser's hands or both feet is known. For example, Patent Literature 1 discloses a training device including a cylindrical portion that is elastically deformed, an elastic material accommodated in the cylindrical portion, and end plates provided on both sides of the cylindrical portion. When performing training using this, a pressing operation for applying a force against the elasticity of the elastic material is applied by touching each end plate and an operation for releasing the force.

JP 2006-26091 A

However, in the above-described training tool, there is no particular guideline indicating the amount of compression of the tube portion, and the amount of compression of the tube portion may vary depending on the athlete. Furthermore, in the above training device, for example, when performing an isometric exercise in which force is applied without changing the degree of muscle contraction, each end plate tends to be displaced in the circumferential direction even if an attempt is made to maintain the compressed state of the tube portion, and the compressed state is maintained. It was difficult. Such a problem is not limited to the training equipment described above, but is generally common in exercise assisting equipment that is pressed between both hands or feet.

The present invention has been made by paying attention to such problems existing in the prior art. The purpose is to provide an exercise assisting tool that is easy to understand the amount of operation for obtaining a high exercise effect and that can easily maintain a state in which the amount of operation is performed.

In order to achieve the above-described object, the exercise assisting device includes a trunk portion that can contract against an elastic repulsion force, and a pair of operation portions provided at both ends of the trunk portion. It is formed in the shape which mutually fits when a part shrink | contracts.

Therefore, in this exercise assisting tool, since both the operation parts have shapes that fit each other, the usage method and the operation amount are intuitively easy to understand for the exerciser. In addition, since the rotation of the exercise assisting tool around the central axis is restricted by the fitting of the two operation parts, it is easy to maintain the fitted state. For this reason, it is easy to perform an isometric exercise that produces a force without changing the degree of muscle contraction.

According to the exercise assisting tool described above, it is possible to obtain an effect that the operation amount for obtaining a high exercise effect is easy to understand and it is easy to maintain the state in which the operation is performed.

The perspective view which shows the exercise assistance tool of one Embodiment. Sectional drawing of the exercise assistance tool of FIG. The perspective view of the 2nd flame | frame which comprises an exercise assistance tool. The perspective view of the 1st flame | frame which comprises an exercise assistance tool. The perspective view of the flame | frame which comprises an exercise assistance tool. The top view in the natural state of an exercise assistance tool. The perspective view at the time of pressing operation of an exercise assistance tool. (A)-(e) is a top view of the modification of an exercise assistance tool.

Hereinafter, an embodiment of the exercise assisting device will be described.

As shown in FIG. 1, the exercise assisting device 10 is configured by providing operation portions 12 and 13 at both left and right ends of a body portion 11 that can extend and contract in the axial direction. When the exerciser holds both operation parts 12 and 13 with one hand and applies a force in a direction in which both operation parts 12 and 13 approach each other, the body part 11 contracts against the biasing force of a spring, which will be described later. However, both the operation parts 12 and 13 are moved in a direction approaching each other, and an exercise load is applied to the exerciser by a spring described later.

Hereinafter, the configuration of each part of the exercise assisting tool 10 will be described in detail.

As shown in FIG. 2, a first frame 15 made of hard synthetic resin is arranged on the left side of the body 11, and a second frame 16 also made of hard synthetic resin is arranged on the right side. Cylindrical portions 17 and 18 are formed in the first and second frames 15 and 16 respectively, and the cylindrical portion 17 of the first frame 15 is inserted into the cylindrical portion 18 of the second frame 16 so as to be movable along the central axis O. Has been.

As shown in FIG. 3, four guide grooves 19 extending along the axial direction are formed on the inner periphery of the cylindrical portion 18 of the second frame 16. As shown in FIG. 4, guide protrusions 20 that fit into the respective guide grooves 19 are formed on the outer periphery of the cylindrical portion 17 of the first frame 15. Relative movement along the center axis O of both the frames 15 and 16 is guided by the fitting of each guide groove 19 and each guide protrusion 20.

As shown in FIGS. 3 and 4, a plurality of claws 21 and 22 that can be engaged with each other are formed at the ends of the cylindrical portions 17 and 18 of the frames 15 and 16, respectively. When the frames 15 and 16 are moved away from each other and the frames 15 and 16 reach a predetermined separation position, the corresponding claws 21 and 22 are engaged with each other as shown in FIG. Thus, further movement of the frames 15 and 16 is restricted and held at the separated position. On the other hand, when both the frames 15 and 16 are moved in a direction approaching each other and the both frames 15 and 16 reach a predetermined approach position, the tip of the cylindrical portion 17 of the first frame 15 is moved inside the second frame 16. Engaging with the end face, further movement of both frames is restricted and held in the approach position.

As shown in FIG. 2, a shrinkable cylindrical outer cylinder 23 made of polyurethane foam is interposed between the flanges 28 and 29 of both the frames 15 and 16. A housing space 24 is formed inside the outer cylinder 23, and a coiled spring 25 is interposed between the inner side surfaces of the housing space 24. The elastic repulsive force of the spring 25 acts on both flanges 28 and 29 via the outer cylinder 23, and is urged by the spring 25 in the direction in which the first and second frames 15 and 16 are separated. On the outer peripheral surface of the outer cylinder 23, a covering cloth 26 serving as a decoration and protection is stretched. A protective cloth 27 is stretched over the entire inner surface of the housing space 24 to prevent the polyurethane foam from peeling off due to contact with the spring 25.

As shown in FIGS. 2 and 5, each operation unit 12, 13 is provided with a frame 30 made of hard synthetic resin that constitutes the skeleton thereof. Each frame 30 includes a base portion 31 having a dome shape and two projecting portions 32 projecting from the base portion 31 with an interval of 180 degrees. A plurality of reinforcing ribs 33 and 34 are formed on the inner surface and the outer surface between the base portion 31 and the protruding portion 32. An inclined portion 35 that is inclined at a gentle angle toward the outside is formed at the tip of each protrusion 32. In other words, the inclined portion 35 is inclined so as to form an obtuse angle with respect to the protruding portion 32. In addition, a hook-like portion 39 is formed so as to protrude inside each base portion 31.

As shown in FIG. 2, each frame 30 is placed on the right end and the left end of the body portion 11 and fixed to the body portion 11 so as not to rotate. In this state, the inner side surface of each base portion 31 is joined to the inclined receiving portions 36 and 37 on the outer peripheral portions of the flanges 28 and 29. A cushion material 40 made of polyurethane foam is fixed to the outer surface of each frame 30. A covering cloth 41 that serves as both protection and decoration is stretched on the outer surface of each cushion member 40 and the outwardly exposed surface of each frame 30. Each covering cloth 41 is hooked on the hook-shaped portion 39, but the hooked state is not shown in FIG. 2 for the sake of convenience.

As shown in FIG. 1, substantially semicircular arc-shaped concave portions 42 and convex portions 43 are alternately formed every 90 degrees on the outer peripheral edge portions of the operation portions 12 and 13 facing each other. Accordingly, the pair of concave portions 42 are arranged 180 degrees apart, and the pair of convex portions 43 are also arranged 180 degrees apart. The left and right operation parts 12 and 13 are provided in the body part 11 in a state in which the mutual concave part 42 and convex part 43 are shifted in phase by 90 degrees. The outer surface of each convex portion 43 is formed in a curved shape. In an unused state immediately after assembly of the exercise assisting tool, that is, in a natural state, the trunk portion 11 is in an extended state in which the claws 21 and 22 are engaged by the repulsive force of the spring 25, and the operation portions 12 and 13 are engaged. Are spaced apart from each other on the left and right. When a force in the approaching direction is applied to each operation portion 12, 13 and the body portion 11 contracts against the repulsive force of the spring 25, both the operation portions 12, 13 approach each other, and the concave portions 42 of each other. And the convex portion 43 are fitted. That is, the left and right operation units 12 and 13 are arranged with a concave-convex fitting relationship. The cushion material 40 is formed such that both the operation parts 12 and 13 are formed in a spherical shape as a whole in a state where the concave part 42 and the convex part 43 are fitted.

Next, the operation of the exercise assisting device 10 configured as described above will be described.

As shown in FIG. 6, the exerciser holds both the operation units 12 and 13 with both hands 100. Since the cushion material 40 is provided in each of the operation parts 12 and 13, the top part is formed in a substantially semi-spherical shape, so that it is easy to follow the curve of the palm and is easy to grip, and also feels good during operation. It becomes.

Further, since the concave portion 42 and the convex portion 43 of the operation portions 12 and 13 face each other in the natural state of the exercise assisting tool, the exerciser has a shape in which the operation portions 12 and 13 can be fitted to each other. It can be easily confirmed visually. For this reason, the exerciser can intuitively understand that the operation units 12 and 13 may be pressed until the operation units 12 and 13 are fitted to each other. The exerciser presses the operation units 12 and 13 in a direction approaching each other against the urging force of the spring 25. At this time, the body portion 11 is not twisted or bent due to the fitting between the guide grooves 19 and the guide protrusions 20, so that the pressing operation can be easily performed.

Further, since the inclined portion 35 is formed in each frame 30, the corresponding convex portion 43 is smoothly inserted into each concave portion. Thus, when an exerciser presses each operation part 12 and 13, a load is applied to the muscles around the chest such as the great pectoral muscle, the back muscles, and the arm muscles.

As shown in FIG. 7, an exerciser presses each operation part 12 and 13 until the convex part 43 corresponding to each recessed part 42 fits. In a state where both the operation units 12 and 13 are fitted to each other (fitted state), the urging force of the spring 25 is adjusted so that the load applied to the muscle of the exerciser becomes an appropriate load. In a state in which the operation parts 12 and 13 are fitted to each other, the exercise assisting tool 10 is substantially oblate as a whole.

In addition, the respective concave portions 42 and the respective convex portions 43 are fitted to each other, and the side surfaces of the respective convex portions 43 and the side surfaces of the respective concave portions 42 are brought into contact with each other, whereby both the operation portions 12 around the central axis O of the exercise assisting tool, 13 relative rotation is restricted. For this reason, it can hold stably in the state where both operation parts 12 and 13 were fitted. Therefore, in particular, it is easy to perform an isometric exercise in which a force is applied to the operation units 12 and 13 without changing the degree of muscle contraction.

Further, the exercise assisting device 10 can be pressed not only by the hand 100 but also between the knees of the feet. In this case, the operation portions 12 and 13 can be stably sandwiched between the knees due to the flexibility of the cushion material 40.

Therefore, according to this embodiment, the following effects can be obtained.

(1) In this exercise assisting tool 10, since both operation parts 12 and 13 have a shape that fits each other, it is intuitively easy for an exerciser to know how to use and the amount of operation with which a high exercise effect can be obtained. Moreover, since both the operation parts 12 and 13 are formed in the shape which mutually fits, the relative rotation of both the operation parts 12 and 13 is controlled. Therefore, both the operation parts 12 and 13 in the fitted state can be stably held, and in particular, an isometric exercise that produces a force without changing the degree of muscle contraction is easy to perform.

(2) In this exercise assisting tool 10, the body 11 is twisted when the operation parts 12, 13 are pressed by fitting the guide grooves 19 provided in the body 11 with the guide protrusions 20. Since it does not turn or bend, it is easy to press.

(3) In this exercise assisting tool 10, both the operation parts 12 and 13 in the fitted state have an oblate shape as a whole. For this reason, the amount of operation with which a high exercise effect can be obtained is easily understood by the exerciser. In addition, the tops of the operation units 12 and 13 are easy to follow the curve of the palm, and are easy to press.

(4) In this exercise assisting tool 10, both operation parts 12 and 13 are provided on the body part 11 with the concave part 42 and the convex part 43 being shifted in phase by 90 degrees. For this reason, if one kind of part which comprises an operation part is prepared, it can be shared by right and left. As a result, the exercise assisting tool 10 can be composed of two types of parts such as the two operation parts 12 and 13 and the trunk part 11.

Note that this embodiment can be modified and embodied as follows.

(Example of change)
As shown in FIGS. 8A to 8B, the shapes of the operation portions 12 and 13 that can be fitted to each other may be different from those of the above embodiment. For example, in FIG. 8A, the operation parts 51 and 52 are formed with three or more peak parts 53 and the same number of valley parts 54 as the peak parts 53 at a predetermined interval. Both the operation parts 51 and 52 are provided with a phase shift with respect to the body part 11 so that the mountain part 53 and the valley part 54 face each other. FIG. 8B shows a configuration in which the number of convex portions and concave portions in the above embodiment is increased for both operation portions 55 and 56. Both the operation parts 55 and 56 are provided in the trunk | drum 11 by shifting a phase so that the mutual recessed part 57 and the convex part 58 may face each other.

As shown in FIG. 8 (c), the shapes of the operation portions 12 and 13 that can be fitted to each other may be different from the concave and convex portions. For example, the operation units 59 and 60 have stepped steps 61 and 62 in a plan view. Both steps 61 and 62 have shapes that mesh with each other. Both ends of the body portion 11 are fitted in recesses formed in the operation portions 59 and 60, respectively. When the operating portions 59 and 60 are pressed, the steps 61 and 62 are engaged with each other. In the fitted state, the operating portions 59 and 60 form a rectangular parallelepiped or a cube as a whole.

As shown in FIG. 8 (d), both the operation parts 63 and 64 may have different shapes. For example, the left operation unit 63 includes a convex portion 65 and a rectangular concave portion 66. The right operation section 64 includes a rectangular parallelepiped base 67 and a protrusion 68 having a shape that can be fitted into the recess 66. During the pressing operation, the protruding portion 68 is fitted into the recessed portion 66, and the base 67 contacts the end surface of the protruding portion 65. In the fitted state, the exercise assisting tool 10 as a whole has a cubic or cuboid shape.

As shown in FIG. 8 (e), both the operation parts 69 and 70 are formed in different shapes, and in the fitted state, the entire right operation part 70 is formed in a shape that can be accommodated in the left operation part 69. Also good. The left operation unit 69 has a shape in which a rectangular recess 71 is formed in a rectangular parallelepiped. The right operation unit 70 has a shape that can be fitted into the recess 71. The depth D1 (depth) of the recess 71 is larger than the depth D2 of the operation unit 70. When the two operation parts 69 and 70 are fitted, the body part 11 is compressed and accommodated in the recess 71 together with the operation part 70.

The first frame 15 and the second frame 16 may be made of a hard material other than resin such as metal.

Each frame 15 and 16 may be configured differently from the above embodiment. When the frames 15 and 16 can be fixed to the outer cylinder 23, the flanges 28 and 29 may be omitted. Further, each of the frames 15 and 16 may have a shape other than a cylindrical shape such as a plate shape or a U-shaped cross section. The number of guide grooves 19 and guide protrusions 20 may be changed. Alternatively, the first frame 15 may be provided with a guide groove, and the second frame 16 may be provided with a guide protrusion. Each nail | claw 21 and 22 may be a simple buttocks.

Other biasing members may be provided in place of the spring 25. For example, a cylindrical rubber member or a member provided with a spring inside the rubber member can be used.

Instead of the protective cloth 27, a spring washer that supports the winding end of the spring 25, and a stretchable rubber material or resin material that protects the inner surface may be provided inside the outer cylinder 23.

At least one of the outer cylinder 23 and the cushion material 40 of the trunk portion 11 may be made of a stretchable material other than a foamed resin other than foamed polyurethane and rubber. When the outer cylinder 23 and the cushion material 40 are made of a highly durable material, the covering cloths 26 and 41 can be omitted.

The frame 30 may be formed in a shape different from that of the above embodiment. For example, the inclined portion 35 provided at the tip of the frame 30 can be omitted and can be made linear. When the protrusion 32 has sufficient strength, the reinforcing ribs 33 and 34 can be omitted.

Both the operation parts 12 and 13 may be provided with a member harder than the cushion material 40 instead of the cushion material 40. When the rigidity can be maintained by the member, the frame 30 can be omitted.

Both the operation parts 12 and 13 in the fitted state may be formed in a shape other than oblate shape such as spherical shape, cubic shape, rectangular parallelepiped shape and the like.

A flat surface may be formed at the top of each operation unit 12, 13.

A support frame that can be expanded and contracted may be provided inside or inside the outer cylinder 23 so that it is difficult to twist during the pressing operation. When the rigidity can be maintained only by the outer cylinder 23, the frames 15 and 16 can be omitted.

The size of the exercise assisting device 10 is not limited to the size of the exercise assisting device 10 shown in FIGS. 6 and 7 as long as the body 11 can be contracted by holding the top portions of the operation units 12 and 13 by hand.

DESCRIPTION OF SYMBOLS 10 ... Exercise assistance tool, 11 ... Trunk part, 12, 13, 51, 52, 55, 56, 59, 60, 63, 64, 69, 70 ... Operation part, 19 ... Guide groove, 20 ... Guide protrusion, 42 , 57, 66, 71 ... concave portion, 43, 58, 65 ... convex portion.

Claims (7)

1. It has a barrel portion that can contract against an elastic repulsion force, and a pair of operation portions provided at both ends of the barrel portion, and both the operation portions are formed in shapes that fit each other when the barrel portion contracts. There are exercise aids.
2. 2. The exercise assisting device according to claim 1, wherein the trunk portion includes a guide groove extending along a central axis of the exercise assisting tool and a guide protrusion that is guided by the guide groove.
3. The exercise assisting device according to claim 1 or 2, wherein the two operation parts are spherical or oblate as a whole in a state of being fitted to each other.
4. Each of the operation portions includes at least two convex portions and at least two concave portions, and is provided on the trunk portion in a state where the phases of the convex portions and the concave portions of the respective operation portions are shifted. The exercise assistance device according to any one of the above.
5. The exercise assisting device according to any one of claims 1 to 4, wherein each of the operation units includes a frame and a cushion material provided outside the frame.
6. The exercise assisting device according to claim 5, wherein the frame includes an inclined portion that is inclined toward an outer side of each of the operation portions at a distal end portion thereof.
7. The operation units according to any one of claims 1 to 6, wherein the operation units abut on each other in a fitted state of the operation units, and restrict the rotation of the operation units around the central axis of the exercise assisting tool. Exercise aids.

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