JP2016220908A - Training device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a training device capable of adjusting an interval between both hands at respective positions of reciprocating movement of two operation parts, in which shapes of the two operation parts fit palms of hands, at respective positions of reciprocating movement.SOLUTION: A training device comprises: support members 34B for supporting two operation parts 100 in a direction of resisting a load, and a direction where a load acts, so as to freely move by reciprocating movement; and two rotary members 110 rotatably supported to the support member, and respectively rotate the respective operation part to the support member around two first axes X1 vertical to a virtual rotation plane PL. Each of the two operation parts is configured so that, a barycenter P1 on a cross section parallel to the virtual rotation plane is positioned at a position eccentric from the first axis X1, and when an axis parallel to a rotation radius direction on the virtual rotation plane is a second axis X2, a contour length on a cross section orthogonal to the second axis X2 is different on plural positions A1-A3 on the second axis where lengths R1-R3 being lengths of the rotation radius from the first axis.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a training device that moves a muscle or a joint of a body by a user moving and operating two operation units by hand against a load.

  As a training device that moves a muscle or a joint of a body by a user moving and operating two operation parts by hand against a load, for example, a dipping device shown in Patent Literature 1-3 is known. A first position (see FIG. 4 of Patent Document 3) where the user pushed down the two operation parts against the load, and a second position where the two operation parts were pushed up according to the load (FIG. 2 of Patent Document 1). And FIG. 3 of Patent Document 3), it is possible to secure a posture with a high training effect particularly at the second position when the positional relationship between the body side portion of the user and the hand is different.

  In the first position, the fingertips of both hands placed on the operation unit are opened so as to face outward, for example, and the position of the hand is brought close to the body side part. On the other hand, in the second position, the elbows protrude obliquely upward, so that the fingertips of both hands are closed so as to face each other, and the back of the hand is moved away from the side of the body.

  For this reason, in patent document 3, two operation parts (hand pushing rotation part 60) can be rotated around the vertical axis (axis 51). Also in Patent Document 1, the two operation portions (grips 12) are rotatable with respect to the support member 34B (0059). Moreover, the two operation parts (hand pressing rotation part 60) of patent document 3 are formed in a semi-cylindrical shape (0021), and the two operation parts (grip 12) of patent document 1 are formed in an L shape (FIG. 1). .

JP 2011-066761 A (FIGS. 1-5, 0059) Japanese Unexamined Patent Publication No. 2011-200732 (FIG. 1) JP 2006-218194 A (FIGS. 3-6 and 0021)

  As in Patent Documents 1 and 3, when the two operation parts are rotatable about the axis with respect to the support member, the fingertips of both hands face each other when the elbow protrudes obliquely upward in the second position. Two operation parts (hand pushing rotation part 60) are rotated in the closing direction. Thereby, the posture in which the position of the hand is kept away from the body side can be ensured.

  However, the operation parts of Patent Documents 1 and 3 are difficult to fit in the palm of the hand, the load is not evenly distributed to the palm in the second position, and the operation part is moved with equal force across the palm in the first position. I can't press it.

  The present invention provides a training device in which the distance between both hands can be adjusted at each position of the two reciprocating movements of the two operating parts, and the two operating parts are shaped to easily fit the palm at each reciprocating position. With the goal.

(1) One aspect of the present invention is a training apparatus in which a user moves a muscle or a joint of a body by moving and operating two operation parts against a load.
A support member that supports the two operation units so as to be capable of reciprocating in a direction against the load and a direction in which the load acts;
Two rotating members that are rotatably supported by the support member and rotate the two operation units with respect to the support member around two first axes perpendicular to a virtual rotation plane;
Have
Each of the two operation units has a center of gravity in a cross section parallel to the virtual rotation plane at a position eccentric from the first axis, and a second axis on the virtual rotation plane is parallel to the rotation radius direction. The present invention relates to a training apparatus in which the contour length of the cross section orthogonal to the second axis is different at a plurality of positions on the second axis where the length of the rotation radius from the first axis is different.

  According to this training apparatus, each of the two operation units is located at a position where the center of gravity of the cross section parallel to the virtual rotation plane is decentered from the first axis, so that the two operation units rotate around the first axis. The distance between both hands can be adjusted at each position of the reciprocating movement of the two operation units. In addition, when the axis parallel to the rotation radius direction on the virtual rotation plane is the second axis, the cross section orthogonal to the second axis is at a plurality of positions on the second axis having different rotation radii from the first axis. The contour length is different. As a result, the thumb side is located in a portion where the contour length of the cross section perpendicular to the second axis is short (thin cross section), and the little finger side is located in the portion where the contour length of the cross section perpendicular to the second axis is long (thick cross section). As described above, the palm is placed on the operation unit or the operation unit is gripped. In this way, the operation unit that is gripped so that the little finger side is thicker than the thumb side can easily fit the palm. With such an operation unit, the load can be distributed over the entire palm, or the entire palm can be operated with an equal force.

  (2) In one aspect of the present invention, the contour length of the cross section perpendicular to the second axis at a position where the rotational radius from the first axis is short is the same as that at the position where the rotational radius from the first axis is long. It can be made shorter than the contour length of the cross section perpendicular to the second axis.

  In this way, while placing the palm at a position where the distance between both hands can be adjusted at each position of the reciprocating movement of the two operation parts, the palm is placed on the operation part so that the little finger side is thicker than the thumb side or By gripping, the operation unit can be fitted to the palm.

  (3) In one aspect of the present invention, the two rotating members are two rotating shafts extending along the two first axes, and one of the two rotating shafts is one of the two operating portions. The other of the two rotating shafts may be fixed to the other of the two operation units. In this way, it is possible to place the palm on the rotatable operation unit directly connected to the rotation shaft.

  (4) In one aspect of the present invention, the two rotating members include two rotating shafts extending along the two first axes, and two connecting members that are rotated integrally with the two rotating shafts, respectively. One of the two connecting members may be fixed to one of the two operating portions, and the other of the two connecting members may be fixed to the other of the two operating portions. Thereby, a space space is ensured by the rotating member between the first shaft and the operation portion, and the rotatable operation portion can be gripped with the palm of the hand.

  (5) In one aspect of the present invention, each of the two operation units has a bottom surface and is a (n / N) sphere that satisfies chamfered by the bottom surface and satisfies 1/2 <n / N <1. And the bottom surface may be fixed to the rotating member. Since the operation part can be fixed to the rotating member by using the flat bottom surface, the attachment becomes easier than the operation part of the sphere. In addition, the operation unit, which is an (n / N) sphere, can hold the finger from the upper hemisphere to the lower hemisphere by placing a finger around the lower hemisphere of the (n / N) sphere. Grip power is higher than the operation part.

  (6) In one aspect of the present invention, each of the two operation units has a bottom surface and is a (n / N) sphere that satisfies chamfered by the bottom surface and satisfies 1/2 <n / N <1. The bottom surface may be fixed to the connection member, and the rotation shaft may be connected to the connection member at a position that does not overlap the bottom surface when viewed from the operation unit side. If it carries out like this, while there exists an effect described in (5), a rotation radius can be ensured more largely by arrange | positioning in the position where a rotating shaft does not overlap with the bottom face of an operation part.

  (7) In an aspect of the present invention, each of the two operation units includes the second axis including two rotation axis radii in which the rotation radius from the first axis is opposite to each other on the same straight line. It may be formed over the upper region. As a result, the width of the user to select the palm position with respect to the operation unit is widened according to the skill level and flexibility. For example, by placing the palm on the operation unit on the extension line of the first axis, the distance between both hands can be made equal at each position of the reciprocating movement of the two operation units.

  (8) In one aspect of the present invention, each of the two operation portions may have a center of gravity of a cross section perpendicular to the second axis at a position eccentric from the second axis. As described above, by decentering the center of gravity of the operation unit and the second axis, it is possible to change the rate of change of the contour of the operation unit along the second axis that is the rotational radius direction.

  (9) In one aspect of the present invention, each of the two operation units may be supported by the two connecting members so as to be rotatable around the second shaft. If it carries out like this, the change rate of the outline of the operation part along the 2nd axis | shaft which is a rotation radius direction can be changed by rotating an operation part around the 2nd axis | shaft.

1 is a schematic perspective view of a training device (dipping device) to which the present invention is applied. It is a schematic explanatory drawing which shows the use condition (2nd position) of the apparatus shown in FIG. It is a figure showing rotation operation of an operation part. It is a figure which shows the improved operation part which is one Embodiment of this invention. It is a front view of the operation part shown in FIG. FIG. 5 is a diagram showing an eccentricity between a center P0 of a first axis X1 projected onto a virtual rotation plane PL shown in FIG. 4 and a center of gravity P1 of one section of an operation unit parallel to the virtual rotation plane. It is a figure which shows the state which hold | gripped the operation part. It is a perspective view which shows an example of a connection member. It is a figure which shows the operation part in which the gravity center of the operation part and the center of the axial center part corresponded. It is a figure which shows the operation part from which the gravity center of the operation part and the center of the axial center part were eccentric. It is a figure which shows embodiment which connected the operation part of the egg shape to the support member by the rotating member. It is a figure which shows embodiment which connected the operation part of the spherical body to the support member by the rotating member. It is a figure which shows embodiment which connected the hemispherical operation part to the support member by the rotating member. It is a figure which shows embodiment which connected the taper-shaped operation part to the support member by the rotating shaft. It is a figure which shows embodiment which connected the egg-shaped operation part to the support member by the rotating shaft. It is a figure which shows embodiment which connected the operation part of the spherical body to the support member by the rotating shaft. It is a figure which shows embodiment which connected the operation part of the hemisphere to the support member by the rotating shaft. It is a figure which shows the embodiment which formed the operation part by the (n / N) sphere which has a bottom face and satisfy | fills 1/2 <n / N <1 chamfered by the bottom face. It is a figure which shows embodiment of the operation part applied to other training apparatuses, such as a high pulley.

  Hereinafter, preferred embodiments of the present invention will be described in detail. The present embodiment described below does not unduly limit the contents of the present invention described in the claims, and all the configurations described in the present embodiment are indispensable as means for solving the present invention. Not necessarily.

1. Training apparatus to which the present invention is applicable A dipping apparatus as an example of a training apparatus to which the present invention can be applied will be described. This dipping device moves both elbows up and down with both shoulders as fulcrums, so that the pectoralis major muscle, latissimus dorsi muscle, lower trapezius muscle, anterior part of the deltoid muscle, triceps, levator levator muscle, upper trapezius muscle, It is an effective device for relaxing stiff muscles by moving muscles such as rhomboid, back of deltoid, and biceps.

  FIG. 1 is a schematic perspective view of the dipping device 10, and FIG. 2 shows a usage pattern of the dipping device 10. The dipping device 10 has two operation parts, for example, two grips 12 and 12 that a user operates with both hands against a load. The two grips 12 and 12 can reversibly rotate in the direction of arrow A around the first shaft 12A shown in FIG. The dipping device 10 is a device for training by moving the above-mentioned muscles by reciprocating these two grips 12 and 12 in the vertical direction B as shown in FIG. In addition, this invention improves the two grips 12 and 12, The description is mentioned later.

  Here, as described above, the first position where the user pushed down the two operation parts against the load (see FIG. 4 of Patent Document 3) and the second operation part where the two operation parts were pushed up according to the load. Depending on the position (see FIG. 2 of Patent Document 1 and FIG. 3 of Patent Document 3), the positional relationship between the body side of the user and the hand is different. In particular, in the second position, as shown in FIG. 2, the elbow protrudes obliquely upward, so that the thumbs of both hands are closed so as to face each other, and the back of the hand is moved away from the side of the body. For this reason, in patent document 3, two operation parts (hand pushing rotation part 60) rotate around the vertical axis (axis 51). In the example of FIG. 1, the L-shaped grip 12 is rotated around the first shaft 12A, and the grip 12 that was at the position indicated by the solid line in the first position is rotated counterclockwise as shown in FIG. The second position is a position indicated by a chain line.

  In the dipping device 10, a leg portion 22 is erected vertically on the base base 20, and a seating portion 26 is fixed via an elevating portion 24 that can be raised and lowered with respect to the leg portion 22. The raising / lowering part 24 can adjust the height position of the seating part 26 in multiple steps or continuously.

  A support column 28 is erected on the base substrate 20 at a position separated from the leg portion 22. A support member 30 is provided on the top of the support column 28 to support the two grips 12 and 12 so as to be reciprocally movable in the vertical direction of FIG.

  The support member 30 has a rocking fulcrum 32 (also referred to as a first fulcrum O1) supported on the top of the column 28. The support member 30 further includes a swing arm 34 that is supported by a swing fulcrum 32 so that the intermediate position in the longitudinal direction is swingable.

  The swinging arm 34 is divided into a base 34A having a swinging fulcrum 32 and a fork extending from the base 34A, and two arms 34B and 34B for supporting the two grips 12 and 12 at their free ends, for example. The two arms 34B and 34B include a tail portion 34C extending from the base portion 34A in the opposite direction. In a narrow sense, the two arms 34B and 34B that support the two grips 12 and 12 are referred to as support members. The two grips 12, 12 can be moved and operated in the vertical direction B of FIG. 2 by swinging by the arms 34 B, 34 B around the swing fulcrum 32. The two grips 12 and 12 are pivotally supported by the arms 34B and 34B, and can be freely rotated in the direction of arrow A in FIG. 1 with respect to the arms 34B and 34B.

  The two grips 12 and 12 are operated against a load, and weights are provided for applying a load to the two grips 12 and 12. There are various methods for applying a load. In FIG. 1, first and second weights 50 and 60 are provided. Instead of the load method of FIG. 1, the weight may be moved up and down with a wire.

The second weight 60 is disposed on the free end side of the tail portion 34C. The second weight 60 can be provided on the tail portion 34 </ b> C via the length adjusting device 62. The length adjusting device 62 is capable of adjusting the length from the free end of the tail portion 34C to the second weight 60 in multiple steps or steplessly, and well-known engagement means is adopted. Further, the weight of the second weight 60 itself may be changeable.

  For example, the first weight 50 is rotatably supported by a rotation fulcrum 52 (also referred to as a second fulcrum O2) provided in the support column 28. The first weight 50 is rotated in the forward and reverse directions around the rotation fulcrum 52, thereby changing the moment around the rotation fulcrum 52.

  The first weight 50 can be attached to the weight support member 54. The weight support member 54 has one end rotatably supported by the rotation fulcrum 52 and the other end extending in the rotation radial direction. Further, the first weight 50 can be one or a plurality of unit weight plates 50 </ b> A that can change the number of the weights mounted on the weight support member 54. The weight support member 54 also functions as a load, and is not different from the unit weight plate 50A.

  A connecting member 40 that connects the first weight 50 (or weight support member 54) to the support member 30 is provided. The connecting member 40 connects the support member 30 and the first weight 50 or the weight support member 54 so that the first weight 50 is moved forward and backward in conjunction with the reciprocating movement of the two grips 12 and 12. Rotate in the direction.

  The connecting member 40 includes a connecting fulcrum 42 provided on the tail portion 34C of the swing arm 34, a connecting bracket 44 rotatably supported by the connecting fulcrum 42, one end connected to the connecting bracket 44, and the other end. A string-like member connected to the first weight 50 or the weight support member 54, for example, a wire 46 can be included. The connecting metal fitting 44 has a function of adjusting the length of the wire 46.

2. Improvement of operation unit 2.1. First Embodiment FIG. 4 is a diagram showing one of two operation units 100 provided on a support member 34B in place of two grips 12. FIG. 5 is a front view of the operation unit 100 shown in FIG. 4, and FIG. 5 shows a section of the operation unit 100 parallel to the virtual plane shown in FIG.

  The operation unit 100 shown in FIG. 4 is formed in a truncated cone shape, for example. The operation unit 100 is fixed to a rotation member 110 that rotates the two operation units with respect to the support member 34B around a first axis X1 perpendicular to the virtual rotation plane PL shown in FIG. The operation unit 100 is rotatably supported by the support member 34 </ b> B via the rotation member 110. The rotating member 110 can include a rotating shaft 112 that is rotatably supported by the support member 34B and extends along the first axis X1, and a connecting member 114 that rotates together with the rotating shaft 112.

  In the operation unit 100, the center of gravity P1 of the cross section shown in FIG. 6 parallel to the virtual rotation plane PL shown in FIG. 5 is at a position eccentric from the center P0 of the first axis X1. From this, the two operation units 100, like the two grips 12 and 12 shown in FIG. 3, are in the second position (the position shown in FIG. 2) where the two operation units 100 are pushed up according to the load. It is rotated around one axis X1. That is, as shown in FIG. 3, the first operation position indicated by the solid line in which the two operation units 100 are pushed down against the load is rotated counterclockwise to the second position indicated by the chain line.

  Furthermore, when the axis parallel to the rotation radius direction on the virtual rotation plane PL is the second axis X2, a plurality of positions A1 to A3 on the second axis X2 having different rotation radius lengths from the first axis X1. Then, the contour length of the cross section orthogonal to the second axis X2 is different. In the example of FIG. 5, when the contour length of the cross section at the positions A1 to A3 (circumference of the cross section positions A1 to A3 in FIG. 5) is L1 to L3, L1 <L2 <L3. That is, the contour length L1 of the cross section orthogonal to the second axis at the position A1 where the rotational radius from the first axis X1 is short is the second axis X2 at the positions A2 and A3 where the rotational radius from the first axis X1 is long. Is shorter than the contour lengths L2 and L3 of the cross section perpendicular to the line.

  When a hand is placed on or gripped on such a tapered operation unit 100, the operation unit 100 that is gripped so that the little finger 122 side is thicker than the thumb 120 side as shown in FIG. By such an operation unit 100, the load can be distributed over the entire palm, or the entire palm can be operated with an equal force.

  FIG. 8 shows the connecting member 114. The connecting member 114 includes, for example, a J-shaped fixture 116, an axial center portion 117 parallel to the second axis X <b> 2, and a fixture 118 that fixes the axial center portion 117 to the fixture 116. The attachment 116 is fixed by a rotating shaft 112 such as a bolt, whereby the connecting member 114 rotates integrally with the rotating shaft 102. When the connecting member 114 is provided, not only can a hand be placed like the manual rotation unit 60 of Patent Document 3, but a space space can be secured below the operation unit 100 and the operation unit 100 can be gripped or gripped.

  The operation unit 100 can be formed of a flexible material that easily fits the palm of the hand, such as rubber or urethane. For example, a hole is formed in the center, so that the operation unit 100 is fitted into the shaft center 117 shown in FIG. be able to. FIG. 9 is a rear view of the fixed operation unit 100, and the shaft center part 117 is located at the center of the operation unit 100.

  Here, as is clear from the comparison with the L-shaped grip 12 shown in FIG. 1 schematically shown in FIG. 8, the operation unit 100 has the rotation radii from the first axis X1 on the same straight line. It is formed over a region on the second axis X2 including two rotation axis radii r1 and r2 that are opposite to each other. Thus, by manually operating the area AR1 shown in FIG. 8, the distance between both hands can be changed as shown in FIG. 3, and the area AR2 or the area AR3 on the first axis X1 can be selected and operated. Can do. For example, when the area AR2 on the first axis X1 is operated by hand, the distance between both hands is not changed regardless of the rotation of the operation unit 100. As described above, the width of the user to select the palm position with respect to the operation unit 100 is widened according to the skill level and flexibility.

2.2. Second Embodiment FIG. 10 shows an example in which the center of gravity of the cross section of the operation unit 130 orthogonal to the second axis X2 parallel to the shaft center part 117 and the shaft center part 117 are eccentric, unlike FIG. Yes. If it carries out like this, the distance from the center of the axial center part 117 to the outer peripheral surface of the operation part 130 will differ from S1-S3. Therefore, for example, the distance from the axial center part 117 to the uppermost surface of the operation part 130 can be set according to the user's preference. For this purpose, a click mechanism or the like that rotates the operation unit 130 around the shaft center part 117 and fixes the operation unit 130 and the shaft center part 117 at a predetermined position may be added. As described above, when the distance from the shaft center part 117 to the uppermost surface of the operation unit 130 is selected, the operation unit 130 protrudes from the shaft center part 117 or the second axis X2 direction parallel to the shaft center part 117. It is possible to adjust the rate of change in the amount of protrusion according to the user's preference.

2.3. Third Embodiment FIGS. 11 to 13 show operation units 140 to 160 having shapes different from those in FIGS. 4 and 10. The operation unit 140 has an egg shape, the operation unit 150 is a sphere, and the operation unit 160 is a hemisphere. In any of the operation units 140 to 160, the center of gravity P1 of the cross section parallel to the virtual rotation plane PL is at a position eccentric from the center P0 of the first axis X1, and the length of the rotation radius from the first axis X1 is different. At a plurality of positions on the second axis X2, the contour length (circumference etc.) of the cross section orthogonal to the second axis X2 is different. Therefore, the same effects as those of the operation units 100 and 110 shown in FIGS. 4 and 10 can be obtained.

2.4. Fourth Embodiment The operation units 170 to 200 shown in FIGS. 14 to 17 show an embodiment different from those in FIGS. 4 and 10 to 13. The operation unit 170 is tapered, the operation unit 180 is an egg, the operation unit 190 is a sphere, and the operation unit 200 is a hemisphere, but these are directly connected to the rotating shaft 112 that is rotatably supported by the support member 34B. 4 and FIG. 10 to FIG. In any of the operation units 170 to 200, the center of gravity P1 of the cross section parallel to the virtual rotation plane PL is at a position eccentric from the center P0 of the first axis X1, and the length of the rotation radius from the first axis X1 is different. At a plurality of positions on the second axis X2, the contour length (circumference etc.) of the cross section orthogonal to the second axis X2 is different. Therefore, the same effects as those of the operation units 100, 110, and 130 to 160 shown in FIGS. 4 and 10 to 13 can be obtained.

  As shown in FIG. 18, instead of the operation units 150 and 190 which are spheres shown in FIGS. 12 and 16 and the operation units 160 and 200 which are hemispheres shown in FIGS. For example, the operation unit 210 may be a (n / N) sphere that satisfies 1/2 <n / N <1, such as a 3/4 sphere. Since the operation unit 210 can be fixed using the flat bottom surface 210A, it is easier to install than the operation units 150 and 190 of a sphere. Further, the operation unit 210 that is an (n / N) sphere can hold the finger from the upper hemisphere to the lower hemisphere by putting a finger around the lower hemisphere side of the (n / N) sphere shown in FIG. In this respect, the grip force is higher than that of the hemispherical operation units 160 and 200.

  Here, in FIG. 18, the rotary shaft support base 34D is fixed to the support member 34B, and the rotary shaft 112 supported by the rotary shaft support base 34D is disposed at a position that does not overlap the bottom surface 210A when viewed from the operation unit 210 side. . In this way, it is possible to secure a larger radius of rotation of the operation unit 210 as compared to the embodiments shown in FIGS. 4 and 10 to 17.

3. The present invention is widely applicable to training devices that move the muscles or joints of the body when the user moves the two operation units against the load, in addition to the dipping device. Is possible. As this type of training device, a high pulley (see FIGS. 6 to 8 of Patent Document 1 and FIG. 3 of Patent Document 2) that pulls down two operation units against a load, and two operation units against a load. For example, a chest press that pushes out substantially horizontally forward and a rowing that pulls two operation parts horizontally can be used.

  For example, in a high pulley or rowing training apparatus, as shown in FIG. 19, a rod-like member 300 is loaded with a string-like member 310 such as a wire in the vertical or horizontal direction, which is one of the reciprocating directions shown in the figure. It is acting. The two operation units 100 shown in FIG. 19 are formed in a tapered shape, for example, similarly to FIG. 4, and are rotatably supported with respect to the rod-shaped member 300 via the rotating member 110 (the rotating shaft 112 and the connecting member 114). . In this way, for example, in the case of a high pulley, when the operation unit 210 is pulled down with both hands against the load, both hands are close to the side of the body (the space between the left and right hands is narrow) and operated according to the direction in which the load acts. When the part 210 is pushed up with both hands, both hands move away from the side of the body as the elbow faces outward (the space between the left and right hands is wide).

  Although the present embodiment has been described in detail as described above, those skilled in the art can easily understand that many modifications can be made without departing from the novel matters and effects of the present invention. Accordingly, all such modifications are intended to be included in the scope of the present invention. For example, a term described at least once together with a different term having a broader meaning or the same meaning in the specification or the drawings can be replaced with the different term in any part of the specification or the drawings.

10 dipping device, 12 grip (operation part), 30, 34B support member,
50, 60 weight (load), 100, 110, 130 to 210 operation unit, 110 rotating member, 112 rotating shaft, 114 connecting member, 117 axial center, A1 to A3 different positions on the second axis, P1 operating unit Centroid of cross section, PL virtual rotation plane, R1-R3, r1, r2 rotation radius, X1 first axis, X2 second axis

Claims (9)

In the training device that moves the muscles or joints of the body by the user moving the two operation parts against the load,
A support member that supports the two operation units so as to be capable of reciprocating in a direction against the load and a direction in which the load acts;
Two rotating members that are rotatably supported by the support member and rotate the two operation units with respect to the support member around two first axes perpendicular to a virtual rotation plane;
Have
Each of the two operation units has a center of gravity in a cross section parallel to the virtual rotation plane at a position decentered from the first axis, and sets an axis parallel to the direction of the rotation radius on the virtual rotation plane. When two axes are used, the contour length of the cross section orthogonal to the second axis is different at a plurality of positions on the second axis where the length of the rotation radius from the first axis is different. Training device. The training device according to claim 1,
The contour length of the cross section perpendicular to the second axis at a position where the rotational radius from the first axis is short is the contour of the cross section perpendicular to the second axis at the position where the rotational radius from the first axis is long. A training device characterized by being shorter than the length. The training device according to claim 1 or 2,
The two rotating members are two rotating shafts extending along the two first axes,
One of the two rotation shafts is fixed to one of the two operation units, and the other of the two rotation shafts is fixed to the other of the two operation units. The training device according to claim 1 or 2,
The two rotating members include two rotating shafts extending along the two first axes, and two connecting members that are rotated integrally with the two rotating shafts, respectively.
One of the two connection members is fixed to one of the two operation units, and the other of the two connection members is fixed to the other of the two operation units. The training device according to claim 3 or 4,
Each of the two operation units has a bottom surface, and is a sphere that satisfies a half <n / N <1 chamfered by the bottom surface (n / N), and the bottom surface is fixed to the rotating member. A training apparatus. The training device according to claim 4,
Each of the two operation parts has a bottom surface, and is a sphere that satisfies a half <n / N <1 chamfered by the bottom surface (n / N), and the bottom surface is fixed to the connecting member. The rotating shaft is coupled to the coupling member at a position that does not overlap the bottom surface when viewed from the operation unit side. The training device according to claim 3 or 4,
Each of the two operation portions is formed over a region on the second axis including two rotation axis radii in which the rotation radius from the first axis is opposite to each other on the same straight line. A training device characterized by. The training device according to claim 7,
Each of the two operation units has a center of gravity of a cross section perpendicular to the second axis at a position eccentric from the second axis. The training device according to claim 8,
Each of the two operation units is supported by the two connecting members so as to be rotatable around the second shaft.

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