Load transmission mechanism unit for training device and training device using same

Abstract

To provide a load transmission mechanism part for a training device for applying a composite load by simultaneously moving a plurality of training object parts.SOLUTION: Provided is a load transmission mechanism unit for a training device, including: a main drive shaft portion; an intermediate shaft portion; a first rotation transmission portion; a second rotation transmission portion that is used for transmission of rotation between the intermediate shaft portion and an orthogonal shaft portion; a sliding shaft portion; a connection and fixation portion that connects the main shaft portion, the intermediate shaft portion, the orthogonal shaft portion, and a bearing; a linear movement guide portion that guides movement of the connection and fixation portion in a linear direction parallel to the extending direction of the first rotation transmission portion; a tensioning member that is connected to the sliding shaft portion to transmit tension and that changes the direction of elongation in accordance with movement of the sliding shaft portion in the axial direction and the linear direction; and a link mechanism portion that has both ends connected to the orthogonal shaft portion and the sliding shaft portion, and converts rotary motion of the orthogonal shaft portion into reciprocating motion of the sliding shaft portion.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a load transmission mechanism for a training device and a training device using the same.

Background Art

[0002] In order to lead a healthy daily life, not limited to sports, muscle training is considered good. In muscle training, a method of operating while applying a load to the body is widely used. There are various training devices used when performing such training. For example, Patent Document 1 discloses a device for performing training that operates while applying a load to the abdomen and around the waist.

[0003] The training device disclosed in Patent Document 1 uses two relay rollers between a tension member such as a suspension belt extending from a weight plate (load) and an input part such as a pressing pad pressed by a user, and the tension of the tension member generated by the weight plate (load) is transmitted to the input part by reversing its direction. In the training performed using the training device disclosed in Patent Document 1, a load is applied to a one-way reciprocating motion that raises or lays down the upper body of the athlete.

[0004] It is said that muscle training can acquire muscle strength with flexibility and elasticity by moving a plurality of muscles around the skeleton by complex movements. In the training using the training device disclosed in Patent Document 1, it becomes a monotonous exercise by a one-way reciprocating motion for a limited range of muscles, and there is a risk that the muscles targeted by the exercise become hardened and lack flexibility and elasticity. Therefore, in an operation involving a muscle load in muscle training, the appearance of a training device capable of simultaneously performing multi-directional movements of the muscles targeted for training has been demanded.

Prior Art Documents

Patent Documents

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2004-187724 [Summary of the Invention] [Problems to be Solved by the Invention]

[0006] Therefore, an object of the present invention is to provide a load transmission mechanism for a training device and a training device using the same, which can apply a load to a composite movement of a target part by simultaneously moving the target part of training in a plurality of directions in an operation involving a load on a muscle in muscle training. [Means for Solving the Problems]

[0007] That is, the load transmission mechanism for a training device according to the first aspect includes an input part to which a user inputs force connected to an end, a driving shaft part that rotates together with the input part, an intermediate shaft part that rotates in conjunction with the rotation of the driving shaft part, a first rotation transmission part that coordinates between the driving shaft part and the intermediate shaft part and is used for transmitting rotation between the driving shaft part and the intermediate shaft part, an intermediate shaft part, a second rotation transmission part that coordinates between the intermediate shaft part and an orthogonal shaft part orthogonal to the intermediate shaft part and is used for transmitting rotation between the intermediate shaft part and the orthogonal shaft part, a sliding shaft part that receives tension from the outside and is supported by a bearing and allows reciprocating movement in the axial direction of the bearing, a connecting and fixing part that connects the driving shaft part, the intermediate shaft part, the orthogonal shaft part, and the bearing, a linear motion guiding part that guides the connecting and fixing part to move in a linear direction parallel to the extending direction of the first rotation transmission part, a tension member that is connected to the sliding shaft part to transmit tension and changes the extending direction in accordance with the movement of the sliding shaft part in the axial direction and the linear direction, and a link mechanism part that is connected to the orthogonal shaft part and the sliding shaft part and converts the rotational movement of the orthogonal shaft part into the reciprocating movement of the sliding shaft part.

[0008] The training device according to the second aspect is characterized by including the load transmission mechanism for a training device according to the first aspect. [Effects of the Invention]

[0009] The load transmission mechanism part for a training device according to the present invention includes an input part to which a user inputs force and is connected to an end part, a driving shaft part that rotates together with the input part, an intermediate shaft part that rotates in conjunction with the rotation of the driving shaft part, a first rotation transmission part that coordinates between the driving shaft part and the intermediate shaft part and is used for transmitting rotation between the driving shaft part and the intermediate shaft part, a second rotation transmission part that coordinates between the intermediate shaft part and an orthogonal shaft part orthogonal to the intermediate shaft part and is used for transmitting rotation between the intermediate shaft part and the orthogonal shaft part, a sliding shaft part that receives tension from the outside and is supported by a bearing and allows reciprocating movement in the axial direction of the bearing, a connecting and fixing part that connects the driving shaft part, the intermediate shaft part, the orthogonal shaft part, and the bearing, a linear motion guiding part that guides the connecting and fixing part to move in a linear direction parallel to the extending direction of the first rotation transmission part, a tension member that is connected to the sliding shaft part to transmit tension and changes the extending direction in accordance with the axial and linear movements of the sliding shaft part, and a link mechanism part that is connected to the orthogonal shaft part and the sliding shaft part and converts the rotational motion of the orthogonal shaft part into the reciprocating motion of the sliding shaft part. Therefore, in an operation involving muscle load in muscle strength training, by moving the training target part in multiple directions simultaneously, a load can be applied to the composite movement of the target part.

Brief Description of the Drawings

[0010]

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MODE FOR CARRYING OUT THE INVENTION

[0011] <Overview of the load transmission mechanism unit 1A for a training device according to the first embodiment> With reference to FIGS. 1 to 6, the load transmission mechanism unit 1A for a training device according to the first embodiment of the present disclosure (hereinafter referred to as the load transmission mechanism unit 1A) will be described. The load transmission mechanism unit 1A is attached to and used with the first training device 100 and the second training device 201 described later, and receives an input from the user's hand.

[0012] <Explanation of the configuration of the load transmission mechanism unit 1A> With reference to FIGS. 1 to 6, the configuration and operation of the load transmission mechanism unit 1A of the first embodiment will be described. First, with reference to FIGS. 1 to 4, the configuration of the load transmission mechanism unit 1A of the first embodiment will be described. FIG. 1 is a front view for explaining the internal configuration of the load transmission mechanism unit 1A, FIG. 2 is a side view for explaining the configuration of the load transmission mechanism unit 1A, FIG. 3 is a perspective view for explaining the internal configuration of the load transmission mechanism unit 1A, and FIG. 4 is a diagram for explaining the link mechanism unit 30 of the load transmission mechanism unit 1A.

[0013] The load transmission mechanism unit 1A includes a housing unit 22. Since FIGS. 1 and 3 are diagrams for explaining the internal configuration of the load transmission mechanism unit 1A, the housing unit 22 is depicted by imaginary lines in FIGS. 1 and 3. The housing unit 22 houses a driving shaft portion 4, an intermediate shaft portion 5, an orthogonal shaft portion 6, and a sliding shaft portion 13. Bidirectional force transmission between the driving shaft portion 4 and the sliding shaft portion 13 is possible via each shaft portion between the driving shaft portion 4 and the sliding shaft portion 13. The driving shaft portion 4 has a gripping portion 11, which is an input portion where the user inputs force, connected to its end. The driving shaft portion 4 rotates together with the gripping portion 11 and moves horizontally in the longitudinal direction of the housing unit 22, approaching and separating from the sliding shaft portion 13 side. The first rotation transmission portion 1K coordinates between the driving shaft portion 4 and the intermediate shaft portion 5 and is used for transmitting rotation between the driving shaft portion 4 and the intermediate shaft portion 5. The intermediate shaft portion 5 rotates in conjunction with the rotation of the driving shaft portion 4. Also, since the intermediate shaft portion 5, the orthogonal shaft portion 6, and the sliding shaft portion 13 are connected to the driving shaft portion 4 via a connection fixing portion 23 described later, they move horizontally as the driving shaft portion 4 moves horizontally. The housing unit 22 constitutes the outer wall of the load transmission mechanism unit 1A.

[0014] The orthogonal shaft portion 6 is orthogonal to the intermediate shaft portion 5. The second rotation transmission portion 1M coordinates between the intermediate shaft portion 5 and the orthogonal shaft portion 6 and is used for transmitting rotation between the intermediate shaft portion 5 and the orthogonal shaft portion 6. The sliding shaft portion 13 receives tension from the outside and is supported by a sliding bearing 13a, allowing reciprocating motion in the axial direction of the sliding bearing 13a. The tension 19 is generated by a load applying portion 130, 230 described later that freely adjusts the magnitude of the load of the training device 100.

[0015] The connection fixing portion 23 connects the driving shaft portion 4, the intermediate shaft portion 5, the orthogonal shaft portion 6, and the sliding bearing 13a. The connection fixing portion 23 includes a first fixing piece 23a and a second fixing piece 23b. As shown in FIG. 1, the first fixing piece 23a is a linear plate-like body, and the second fixing piece 23b is an L-shaped plate-like body.

[0016] The first fixed piece 23a is provided with a main bearing (not shown) and an intermediate bearing 5a. The main bearing rotatably supports the main shaft portion 4, and the intermediate bearing 5a rotatably supports the intermediate shaft portion 5. The main bearing and the intermediate bearing 5a support the main shaft portion 4 and the intermediate shaft portion 5 so that the main shaft portion 4 and the intermediate shaft portion 5 are parallel to each other. The second fixed piece 23b is an L-shaped plate-like object in which a short side and a long side are orthogonal to each other. A sliding bearing 13a is provided on the L-shaped short side, and an orthogonal bearing 6a is provided on the L-shaped long side. The sliding shaft portion 13 supports the sliding bearing 13a so as to be reciprocally movable in the axial direction. The orthogonal bearing 6a rotatably supports the orthogonal shaft portion 6. The link mechanism portion 30 described later connects both ends to the sliding shaft portion 13 and the orthogonal shaft portion 6, and converts the rotational movement of the orthogonal shaft portion 6 into the reciprocating movement of the sliding shaft portion 13.

[0017] The first fixed side 23a is connected to the second fixed side 23b so as to be orthogonal to the L-shaped long side of the second fixed side 23b. Therefore, the main shaft portion 4, the intermediate shaft portion 5, and the sliding shaft portion 13 are provided in the connection fixing portion 23 so as to be parallel to each other. The orthogonal shaft portion 6 is provided in the connection fixing portion 23 so as to be orthogonal to the main shaft portion 4, the intermediate shaft portion 5, and the sliding shaft portion 13.

[0018] A main shaft sprocket 4c is provided on the main shaft portion 4, and an intermediate shaft sprocket 5c is provided on the intermediate shaft portion 5. A sprocket is a gear for transmitting the rotation of a shaft to a transmission chain 10 or for transmitting the rotation of the transmission chain 10 to a shaft. The transmission chain 10 is one of the mechanical elements used for power transmission that transmits the rotation of a shaft as tension. Since a transmission chain 10 serving as the first rotation transmission portion 1K is suspended and linked between the main shaft sprocket 4c and the intermediate shaft sprocket 5c, the transmission chain 10 rotates the main shaft sprocket 4c and the intermediate shaft sprocket 5c in conjunction with each other, so that the intermediate shaft portion 5 rotates in conjunction with the rotation of the main shaft portion 4.

[0019] The second rotation transmission part 1M includes an intermediate shaft bevel gear 5d and an orthogonal shaft bevel gear 6c. The intermediate shaft bevel gear 5d and the orthogonal shaft bevel gear 6c transmit their respective rotations to each other by meshing their teeth with the teeth of the other. The intermediate shaft bevel gear 5d is provided on the intermediate shaft part 5, and the orthogonal shaft bevel gear 6c is provided on the orthogonal shaft part 6. A bevel gear is a gear that is attached to each of two intersecting rotating shafts, transmits a rotational motion between these two shafts, and the toothed surface of the gear itself is in the shape of a conical frustum. The intermediate shaft bevel gear 5d and the orthogonal shaft bevel gear 6c constitute the second rotation transmission part 1M, cooperate between the intermediate shaft part 5 and the orthogonal shaft part 6 that is orthogonal to the intermediate shaft part 5, and are used for transmitting the rotation between the intermediate shaft part 5 and the orthogonal shaft part 6.

[0020] The first fixing piece 23a is fixed to the slider 20c of the linear motion guide part 20. The linear motion guide part 20 includes guides 20a, 20b that serve as rails (railroads), a slider 20c, and a guide support base 20d, and is one of the mechanical element parts in which the slider 20c that slides along the guides 20a, 20b performs a linear motion smoothly with low friction. The slider 20c has a connecting and fixing part 23 that connects the driving shaft part 4, the intermediate shaft part 5, the orthogonal shaft part 6, and the sliding shaft part 13, and moves the connecting and fixing part 23 along a direction parallel to the extending direction of the first rotation transmission part 1K.

[0021] The linear motion guide part 20 includes a first guide 20a, a second guide 20b, a slider 20c, and a guide support base 20d. The guide support base 20d is fixed inside the housing part 22. The first guide 20a and the second guide 20b are linear rod-shaped bodies, and are fixed to the guide support base 20d while maintaining a parallel state between the first guide 20a and the second guide 20b. The slider 20c is installed straddling the first guide 20a and the second guide 20b, and moves straight on the first guide 20a and the second guide 20b.

[0022] When the gripping portion 11, which is the input portion, is horizontally moved by the user, the connecting and fixing portion 23 moves smoothly and horizontally with low friction along the extending directions of the first guide 20a and the second guide 20b together with the slider 20c. The intermediate shaft portion 5 and the orthogonal shaft portion 6 move horizontally along with the horizontal movement of the connecting and fixing portion 23. The first guide 20a and the second guide 20b are installed in the housing portion 22 such that the extending directions of the first guide 20a and the second guide 20b are parallel to the extending direction of the orthogonal shaft portion 6. Thereby, the direction of the horizontal movement of the orthogonal shaft portion 6 accompanying the horizontal movement of the driving shaft portion 4 becomes parallel to the extending direction of the orthogonal shaft portion 6. Note that the parallelism of the two directions means three-dimensional parallelism, that is, the two directions are on the same plane and do not intersect each other.

[0023] On the upper surface 22a of the housing portion 22, a long hole 33 penetrating vertically is provided. The long hole 33 is formed so as to extend in the direction in which the slider 20c moves straight. The sliding shaft portion 13 is inserted into the long hole 33. Along with the horizontal movement of the gripping portion 11 by the user, the sliding shaft portion 13 moves horizontally within the long hole 33.

[0024] The link mechanism portion 30 has both ends connected to the sliding shaft portion 13 and the orthogonal shaft portion 6, and converts the rotational movement of the orthogonal shaft portion 6 into the reciprocating movement in the vertical direction of the sliding shaft portion 13. The configuration of the link mechanism portion 30 will be described with reference to FIG. 4. The link mechanism portion 30 includes a first link 30a and a second link 30b. A link generally has an elongated rod shape with joints provided at both ends and serves to transmit force and motion. One end of the first link 30a is fixed to the orthogonal shaft portion 6, and the other end of the first link 30a is connected to one end of the second link 30b to form a first joint 30c. The first joint 30c is a joint formed by the first link 30a and the second link 30b and is a movable part. The second link 30b is rotatable approximately 360 degrees with respect to the first link 30a around the first joint 30c. The other end of the second link 30b is connected to the first end portion 13b of the sliding shaft portion 13 to form a second joint 30d. The second joint 30d is a joint formed by the second link 30b and the sliding shaft portion 13 and is a movable part. The second link 30b is rotatable about the second joint 30d by approximately 360 degrees with respect to the sliding shaft portion 13.

[0025] The tension member 25 is connected to the sliding shaft portion 13 to transmit the tension 19, and changes the elongation direction in accordance with the axial and linear movements of the sliding shaft portion 13. The tension member 25 is a flexible rope with low stretchability, and its material and thickness are determined according to load conditions and durability requirements. The material of the tension member 25 is mainly metal. Also, the tension member 25 may be a metal chain. In the case of the two-arm first training device 100a (see FIGS. 8 to 11), one end of the tension member 25 is connected to the second end portion 13c of the sliding shaft portion 13, and the other end is connected to the tension member connection portion 181 of the load applying portion 130. In the case of the single-arm first training device 100b (see FIGS. 12 to 13), one end of the tension member 25 is connected to the second end portion 13c of the sliding shaft portion 13 of one of the two load transmission mechanism portions 1A, and the other end is connected to the second end portion 13c of the sliding shaft portion 13 of the other. The tension member 25 extends from the load applying portion 130 and is inserted and wound around the first guide roll 26, the second guide roll 27, and the direction-changing guide wheel 170.

[0026] The first guide roll 26 and the second guide roll 27 are each disk-shaped, and annular grooves 26a and 27a extending in the circumferential direction are formed on their outer peripheral surfaces (see FIGS. 1 to 4). The tension member 25 is fitted and held in the grooves 26a and 27a. The tension member 25 is restricted from moving in the front-rear direction (left and right on the paper surface of FIG. 1) by being held in the grooves 26a and 27a.

[0027] The tension member 25 is clamped by the first guide roll 26 and the second guide roll 27, and its movement in the left-right direction (left and right on the paper surface of FIG. 2) is restricted. The first guide roll 26 and the second guide roll 27 rotate in accordance with the forward and backward movement of the tension member 25 due to the friction generated between them and the tension member 25.

[0028] The direction-changing guide wheel 170 converts the downward load applied to the tension member 25 by the weight 131 described later into an upward load. The direction-changing guide wheel 170 has a disk shape and an annular groove 170a extending in the circumferential direction is formed on the outer peripheral surface (see FIGS. 1 to 2). The tension member 25 is fitted and held in the groove 170a.

[0029] The first guide roll 26 and the second guide roll 27 are attached near the uppermost part of the guide support 140 via the attachment bracket 141. The load transmission mechanism portion 1A is allowed to make a turning motion about the guide support 140. The attachment bracket 141 changes the direction of the attachment bracket 141 so as to follow the direction of the load transmission mechanism portion 1A in accordance with the direction of the turning load transmission mechanism portion 1A.

[0030] <Explanation of the operation of the load transmission mechanism portion 1A> With reference to FIGS. 5 to 6, the operation of the load transmission mechanism portion 1A will be described. FIG. 5 is a front view for explaining the internal operation of the load transmission mechanism portion 1A, and FIG. 6 is a view for explaining the operation of the link mechanism portion 30 of the load transmission mechanism portion 1A.

[0031] First, with reference to FIGS. 1 and 5, the internal operation when the main shaft portion 4 in the load transmission mechanism portion 1A makes a horizontal movement will be described. In FIG. 5, the housing portion 22 is drawn by an imaginary line. In the change between the state shown in FIG. 1 and the state shown in FIG. 5, the horizontal movement of the grip portion 11 away from the guide support 140 in the housing portion 22 by the user's operation is transmitted as the horizontal movement of the sliding shaft portion 13 via the connection fixing portion 23. The sliding shaft portion 13 moves horizontally within the long hole 33 formed in the upper surface 22a of the housing portion 22. The tension member 25 connected to the second end portion 13c of the sliding shaft portion 13 extends in accordance with the horizontal movement of the second end portion 13c, and changes the angle in the extending direction from the portion held by the grooves 26a and 27a of the tension member 25.

[0032] Referring to FIGS. 4 and 6, the movement of the internal structure when the driving shaft portion 4 in the load transmission mechanism portion 1A is rotated will be described. In the conversion between the state shown in FIG. 4 and the state shown in FIG. 6, the rotational movement of the grip portion 11 by the user is transmitted as the rotational movement of the orthogonal shaft portion 6 by the first rotational transmission portion 1K and the second rotational transmission portion 1M. Then, the rotational movement of the orthogonal shaft portion 6 is further converted into the vertical movement of the sliding shaft portion 13 by the link mechanism portion 30 to advance and retract the tension member 25, so that for the user who rotates the grip portion 11, the horizontal movement of the grip portion 11 is combined to generate an appropriate torsional load on the body parts such as the user's arm and shoulder, enhancing the training effect of the muscles of the whole body.

[0033] <Regarding the load transmission mechanism portion 1B for the training device according to the second embodiment> Referring to FIG. 7, the load transmission mechanism portion 1B for the training device according to the second embodiment (hereinafter referred to as the load transmission mechanism portion 1B) will be described. The load transmission mechanism portion 1B is a modification of the load transmission mechanism portion 1A, and is attached to and used in the second training device 201 described later, and receives an input from the user's foot.

[0034] Next, referring to FIGS. 7 and 15, the load transmission mechanism portion 1B according to the second embodiment will be described. FIG. 7 is a front view for explaining the internal configuration of the load transmission mechanism portion 1B, and FIG. 15 is an enlarged perspective view of the footrest portion 271 of the second training device 201. In FIG. 7, the housing portion 22 is drawn by an imaginary line. The aforementioned load transmission mechanism unit 1A is mainly a mechanical member for a user to grip by hand and use for upper limb training. In addition to this, a load transmission mechanism unit 1B is proposed for lower limb training. The load transmission mechanism unit 1B is provided with a footrest portion 271, and the user places the foot on the footrest portion 271 to perform lower limb training. Thus, the structure of the load transmission mechanism unit for the training instrument of the present disclosure can be extended for upper and lower limb training.

[0035] The footrest portion 271, which serves as an input portion for the user's force, is connected to the tip portion 276c of the driving shaft portion 276 of the load transmission mechanism unit 1B. The load transmission mechanism unit 1B is different from the driving shaft portion 4 (see FIG. 1) of the load transmission mechanism unit 1A in the configuration of the driving shaft portion 276 as compared with the load transmission mechanism unit 1A. The driving shaft portion 276 projects the tip portion 276c on the same side as the sliding shaft portion 13, and is different from the load transmission mechanism unit 1A in that the footrest portion 271 is connected to the tip portion 276c. Hereinafter, in the description of the load transmission mechanism unit 1B, the components common to the load transmission mechanism unit 1A are denoted by the same reference numerals as those used in the description of the load transmission mechanism unit 1A in FIGS. 7 and 15, and the description thereof is omitted, and only the components different from the load transmission mechanism unit 1A will be described.

[0036] The load transmission mechanism unit 1B is used in a state where it is rotated 90 degrees from the load transmission mechanism unit 1A (see FIG. 1) and erected so that the axial direction of the orthogonal shaft portion 6 is substantially vertical. The driving shaft portion 276 is disposed near the upper part 277 of the main body (see FIG. 15).

[0037] The user places either the left or right foot on the footrest portion 271. The footrest portion 271 has an area that is slightly larger than the size of the user's foot. The footrest portion 271 includes a third rotating shaft 273, side plates 274a and 274b, and a connecting plate 275.

[0038] The driving shaft portion 276 is vertically connected to the center of the connecting plate 275. At both ends of the connecting plate 275, flat side plates 274a and 274b that are perpendicular to the connecting plate 275 are provided. Between the side plates 274a and 274b, the third rotating shaft 273 to which the footrest portion 271 is attached is rotatably installed.

[0039] The third rotating shaft 273 is rotatably supported by a bearing 272 (see FIG. 15) provided on the back surface of the footrest portion 271. Thus, the footrest portion 271 can rotate around the third rotating shaft 273. Further, the footrest portion 271 can rotate around the driving shaft portion 276.

[0040] That is, the footrest portion 271 can rotate around two different axes orthogonal to each other. Therefore, by providing the structure shown in FIGS. 7 and 15, the user has a wider degree of freedom in placing the feet, such as the direction of the feet and the bending angle of the feet, and can place the sole of the foot on the footrest portion 271 stress - free and push the footrest portion 271 with the foot at a desired angle. Thus, the user can, in a desired posture (angle and force), apply a load to the flexion and extension movement of the foot placed on the footrest portion 271 by the second training device 201, and by changing the direction of the toe of the foot from upward to lateral during the flexion and extension movement, apply a load to the twisting movement of the entire foot. Therefore, in the lower limb training using the second training device 201, since the flexion and extension movement with a load on the foot placed on the footrest portion 271 and the twisting movement with a load can be performed simultaneously, a composite movement can be made on a plurality of muscles of the foot under a state of being given an appropriately adjusted load.

[0041] <Explanation of the operation of the load transmission mechanism portion 1B according to the second embodiment> The user can perform various leg movements using the load transmission mechanism portion 1B. With reference to FIGS. 7 and 15, the operation of the load transmission mechanism portion 1B will be described below while showing an example of a leg movement. As an example of a leg movement, the operation of the load transmission mechanism portion 1B accompanying the movement of flexing and extending the user's knee joint will be described.

[0042] As an initial posture of the user, the user bends the knee joint and places the instep straight upward on the footrest portion 271 (see FIG. 16). In the state of the user's initial posture, the footrest portion 271 is located on the side closer to the user's body by bending the user's leg.

[0043] Next, while gradually extending the knee joint from the bent state of the initial posture (see Fig. 17), the user rotates the leg so as to tilt the knee joint inward (see Fig. 18). When extending the knee joint, the user pushes up the footrest portion 271 by pushing the leg diagonally upward, and moves the footrest portion 271 upward in parallel (see Fig. 17). Then, when the knee joint is opened to the maximum, the user tilts the knee joint inward to the maximum (see Fig. 18).

[0044] At this time, the state of the footrest portion 271 is such that the user of the load transmission mechanism portion 1B extends the leg and is located on the side far from the user's body, and the footrest portion 271 is in a state of rotating maximally around the axis of the main drive shaft portion 276 (see Fig. 18). In the load transmission mechanism portion 1B, the upward parallel movement of the footrest portion 271 causes the upward movement of the sliding shaft portion 13, thereby increasing the load by the load applying portion 230.

[0045] In the load transmission mechanism portion 1B, by rotating the footrest portion 271, the rotation of the main drive shaft portion 276 is transmitted to the sliding shaft portion 13 via the first rotation transmission portion 1K, the second rotation transmission portion 1M, and the link mechanism portion 30. The sliding shaft portion 13 is displaced relative to the housing portion 22, and this displacement causes the weight of the load applying portion 230 to be displaced up and down. In the load transmission mechanism portion 1B, the rotation of the footrest portion 271 around the axis of the main drive shaft portion 276 causes the displacement of the sliding shaft portion 13, thereby causing a change in the load by the load applying portion 230. The user can perform the rotational movement of the footrest portion 271 while resisting the urging force generated by the load applying portion 230. Note that the rotational movement at any position during the parallel movement of the footrest portion 271 can receive the change in the load generated by the load applying portion 230.

[0046] <Overview of the First Training Instrument 100 and the Second Training Instrument 201> Referring to FIGS. 8 to 13, the first training device 100 will be described. The first training device 100 is a device for use in upper limb exercises, to which a load transmission mechanism unit 1A for receiving an input from the hand is attached. Note that the first training device 100 is divided into a first training device 100a for both arms (see FIGS. 8 to 11) and a first training device 100b for one arm (see FIGS. 12 and 13).

[0047] Referring to FIGS. 14 to 18, the second training device 201 will be described. The second training device 201 is a device equipped with a load transmission mechanism unit 1A for receiving an input from the hand and a load transmission mechanism unit 1B for receiving an input from the foot, and is adapted to exercises of both the upper and lower limbs.

[0048] The load transmission mechanism unit 1A includes a mechanism for transmitting a load such as the weight of the first training device 100 and the second training device 201 to the user. The load transmission mechanism unit 1A includes a grip portion 11 (see FIG. 1, etc.) which is a handle gripped by the user, and is used for upper limb exercises such as the arm and shoulder. The load transmission mechanism unit 1B includes a footrest portion 271 (see FIG. 7) of the user, and is used for lower limb exercises such as the leg.

[0049] The grip portion 11 gripped by the user and the footrest portion 271 of the user are input portions where the user inputs force. For example, the user turns the back of both hands outward to the left and right outside of the first training device 100 in the initial state (see FIGS. 8 and 9), and grips each of the two grip portions 11 which are input portions with the left and right hands. Then, while gripping the grip portion 11 with both hands, the user inputs a pulling force to the grip portion 11 by moving both arms downward simultaneously. Also, the user turns the back of both hands outward to the left and right outside of the first training device 100 in the initial state (see FIGS. 8 and 9), and grips each of the two grip portions 11 with the left and right hands. Then, while gripping the grip portion 11 with each of both hands, the user performs an open-chest exercise by swinging both arms outward simultaneously in an extended state, and inputs a force to cause the load transmission mechanism unit 1A to swing outward via the grip portion 11. The holding part 11 is an annular object, and the user holds it by passing a hand through the annular holding part 11.

[0050] Also, the user sits on the right side (front in the figure) of the seat 211 of the second training device 201 (see FIGS. 14 to 18) in the initial state. Then, the user raises the right arm and holds the holding part 11 with the right hand. Then, while maintaining the state of holding the holding part 11 with the right hand, the user swings the right arm downward forward to input a pulling-down force to the holding part 11 serving as the input part. Also, the user sits on the right side (front in the figure) of the seat 211 of the second training device 201 (see FIGS. 14 to 18), places the left foot on the footrest part 271 serving as the input part of the load transmission mechanism part 1B, and bends the knee (see FIG. 16). Then, the user inputs a pushing force to the footrest part 271 by extending the left foot (see FIG. 17).

[0051] <The first training device 100> The configuration of the first training device 100 is shown in FIGS. 8 to 13. The first training device 100 is a training device equipped with and used with the load transmission mechanism part 1A. Note that the first training device 100 shown in FIGS. 8 to 13 is divided into a first training device 100a for both arms (see FIGS. 8 to 11) and a first training device 100b for one arm (see FIGS. 12 and 13).

[0052] The first training device 100a for both arms shown in FIGS. 8 to 11 is a device that holds the handles (holding parts 11) of the left and right two load transmission mechanism parts 1A with both hands and moves with both upper limbs so as to always maintain the same height, aiming to adjust the functions between the left and right upper limbs and enhance the functional relevance. The first training device 100b for one arm shown in FIGS. 12 and 13 is the same as the first training device 100a for both arms in that it can hold the handles (holding parts 11) of the left and right two load transmission mechanism parts 1A with both hands, but the first training device 100b for one arm is mainly a device that holds either one of the holding parts 11 of the left and right two load transmission mechanism parts 1A with one hand and moves with each upper limb on the left or right side. The first training device 100 includes a first training device 100a for both arms (see FIGS. 8 to 11) and a first training device 100b for one arm (see FIGS. 12 to 13). For the common components, the same reference numerals are used.

[0053] <Description of the configuration of the first training device 100> The first training device 100 is equipped with a load transmission mechanism unit 1A and can be used for training the upper limbs of a user. The configuration of the first training device 100 will be described by taking the case where the load transmission mechanism unit 1A is mounted on the first training device 100 as an example.

[0054] As shown in FIGS. 8 to 13, the first training device 100 includes a seating part 110, a framework 120 that supports the seating part 110, a load applying part 130 provided on the framework 120 and having an adjustable load magnitude, and two guide columns 140 that are vertically fixed to the framework 120 at a predetermined interval so that the seating part 110 is at its central position. Further, the first training device 100 includes two load transmission mechanism units 1A that are respectively fitted such that one end side is vertically movable and rotatable in the horizontal direction, a gripping part 11 connected to the lower end part of the driving shaft part 4 of the two load transmission mechanism units 1A, and a tension member 25 having one end connected to the load applying part 130 and the other end wound around a direction-changing guide pulley 170 provided on the framework 120 and connected to the other end side of the fitting position of the guide column 140 of the load transmission mechanism unit 1A. Inside the load transmission mechanism unit 1A, the load from the load applying part 130 causes a load variation with respect to the rotation of the axis of the gripping part 11 via the tension member 25.

[0055] The seating part 110 includes a suitable seat 111 for the user using the first training device 100 to sit facing the front direction, and a seat column 112 vertically provided on the lower surface of the seat 111.

[0056] The frame 120 stably installs the first training device 100 on the floor surface, serves as the framework of the entire first training device 100, and fixes the seating part 110, the load applying part 130, the two guide columns 140, etc. The seat column 112 is inserted into a hole vertically penetrating forward from the central part of the lower surface of the frame 120, and the seating part 110 is supported by the frame 120. The frame 120 is provided with a thigh pressing part 121 that prevents the thighs of the user sitting on the seat 111 from rising. The thigh pressing part 121 is preferably provided for the user to form an appropriate arch in the back during training.

[0057] The load applying part 130 is provided on the frame 120, enables adjustment of the magnitude of the load in the first training device 100, and includes a weight 131 such as a stack weight composed of a plurality of plate-shaped plates that are metal weight members, a weight guide column 132 that supports the weight 131 on the frame 120 so as to be vertically movable, and a clamp (not shown) that can adjust the number of superposed weights 131 by making them connectable and separable from each other. The number of weights 131 is increased or decreased to adjust the load (weight) of the load applying part 130. The pair of columnar weight guide columns 132 are vertically fixed to the frame 120 at the rear of the seating part 110 with a predetermined left-right interval between the upper and lower ends, and each plate-shaped plate of the weight 131 is inserted through its through hole and laminated, and is supported on the frame 120 so as to be vertically movable.

[0058] In order to connect the load transmission mechanism part 1A to the first training device 100, a connection part 7 is provided in the housing part 22. The form adopted by the connection part 7 of the load transmission mechanism part 1A is a cylindrical connection cylinder part 8. The guide column 140 is inserted into the connection cylinder part 8. A member with low sliding resistance such as fluororesin is used for the connection cylinder part 8. As a result, the load transmission mechanism part 1A can smoothly move up and down and turn in the first training device 100.

[0059] The load transmission mechanism unit 1A is fitted to the guide support 140 by inserting the guide support 140 into the connection part 7, and can move up and down and rotate freely in the horizontal direction. The gripping part 11 connected to the driving shaft part 4 of the two load transmission mechanism units 1A is an annular handle that serves as an input part for the user to grip with their hands and input force. Each gripping part 11 rotates horizontally around the driving shaft part 4 of the load transmission mechanism unit 1A. In the initial state of the first training device 100 (see FIGS. 8 and 9), the back of the hand of the user gripping each gripping part 11 faces the outside of the left and right sides of the first training device 100, and each gripping part 11 is further above the position of the hand when the user sitting on the seat 111 extends their arm upward. Then, the user can lower the load transmission mechanism unit 1A through the gripping part 11 by grasping the gripping part 11 with their hand and lowering their arm. At this time, the user moves both arms from the center (the line in the exact middle of the left and right sides of the body) to the outside to perform an operation of opening the chest. FIGS. 10 and 11 show the state of the first training device 100a for both arms when the user is in a posture with the chest opened.

[0060] Among the first training devices 100, FIGS. 8 to 11 show the first training device 100a for both arms that is used by operating both arms simultaneously, and FIGS. 12 and 13 show the first training device 100b for one arm that is used by operating each arm separately. For the first training device 100a for both arms, two ropes or wires of the same length are used as the tension members 25. One end of each of the two tension members 25 is connected to the weight 131, and the other end of each is connected to the load transmission mechanism unit 1A. The two tension members 25 are each wound around the direction-changing guide pulley 170. The direction-changing guide pulley 170 converts the downward load applied to the tension member 25 by the weight 131 into an upward load. The two tension members 25 and the weight 131 are connected at two tension member connection parts 181 (see FIGS. 9, 11, etc.).

[0061] As shown in FIGS. 12 and 13, a single rope or wire is used as the tension member 25 of the one-armed first training device 100b. Both ends of this single tension member 25 are respectively connected to two load transmission mechanism parts 1A. One movable pulley 134 is housed in a box part 133 provided at the upper end of the weight 131, and the tension member 25 is wound around this movable pulley 134. The tension member 25 is drawn into the box part 133 through two holes 136 provided on the upper surface of the box part 133 (only one hole 136 is shown in FIG. 12). When one of the two load transmission mechanism parts 1A is pulled down, the tension member 25 lifts the weight 131 upward together with the aforementioned movable pulley 134 with the other load transmission mechanism part 1A as a fulcrum. The movable pulley 134 is rotatably supported by a support base 135 fixed inside the box part 133.

[0062] By performing an operation of opening the user's chest from the initial state shown in FIGS. 8 and 9, a load due to the tension of the tension member 25 is applied to the horizontal rotation outward about the guide post 140 of the load transmission mechanism part 1A. The tension of the tension member 25 is generated by a load applying part 130 that freely adjusts the magnitude of the load of the first training device 100. In addition, also in the second training device 201 described later, similar to the first training device 100, the tension of the tension member 280 is generated by a load applying part 230 that freely adjusts the magnitude of the load of the second training device 201.

[0063] On the other hand, in the states shown in FIGS. 10 and 11, a load acts to close inward so that the load transmission mechanism part 1A faces the front direction, and the user can rotate the load transmission mechanism part 1A to a predetermined angle so as to oppose the load. The load that acts to close inward so that the load transmission mechanism part 1A faces the front direction is proportional to the load of the load applying part 130 and is approximately inversely proportional to the vertical position of the load transmission mechanism part 1A.

[0064] In the case of the single-arm first training device 100b shown in FIGS. 12 and 13, by adjusting the load applying unit 130, it is possible to train by varying the load associated with the lifting and lowering operation of the load transmission mechanism unit 1A for each user.

[0065] <Explanation of the usage method of the first training device 100> Regarding the first training device 100, typical usage methods will be described in order. First, the weight 131 is set according to the load considering the user's muscle strength, purpose, etc. The user sits on the seat 111 facing forward and adjusts and fixes the seat 111 to an appropriate height so that the soles of the feet are in contact with the floor surface. Further, the thigh pressing part 121 is adjusted and fixed to an appropriate height so as to contact the upper surface of the thigh of the user sitting on the seat 111.

[0066] Next, the user stands up, aligns with the initial state of the load transmission mechanism unit 1A facing the front direction (see FIGS. 8 and 9), turns the back of the hands outward on the left and right sides of the first training device 100, and grips the holding parts 11 respectively. Then, while gripping with the hand that has extended the holding part 11 upward and while pulling the holding part 11 downward, the user sits on the seat 111 facing the front direction.

[0067] Next, the user resists the rotational biasing force acting on the holding part 11 by a force proportional to the load of the load applying unit 130, twists both upper arms outward, rotates each holding part 11 horizontally with respect to the load transmission mechanism unit 1A, and turns the back of the hand holding each holding part 11 outward from the front direction of the first training device 100. By taking the position of this "evasive movement", both the flexor and extensor muscles are "relaxed" and the shoulders and arms are in a relaxed state. Also, the holding part 11 is biased upward by the load of the load applying unit 130, and the muscles around the scapular girdle etc. are moderately "stretched".

[0068] Next, the user bends both arms against the load applied by the load applying unit 130 so that the muscles near the scapular girdle that are moderately "extended" cause a "reflection", shortens the muscles, and pulls down the gripping unit 11. At this time, while adding the operations of "relaxing" and "extending" by twisting the upper arms outward, the user pulls down the gripping unit 11 with both hands. By twisting the upper arms outward, each gripping unit 11 rotates further in the outer horizontal direction with respect to the load transmission mechanism unit 1A, thereby lifting the weight 131 and reducing the load in the initial operation of pulling down both arms. In this way, when shortening the muscles by bending both arms and pulling down the gripping unit 11, by further twisting the upper arms outward, appropriate "shortening" timing is caused while adding the operations of "relaxing" and "extending", so that each muscle group can obtain the timing of "relaxation - extension - shortening" and operate in a coordinated manner.

[0069] Furthermore, the user can apply a load appropriately adjusted by the load applying unit 130 in each of the three directions of downward, rotational, and lateral directions, that is, by pulling down both arms and further stretching them outward while twisting the upper arms outward. Therefore, each muscle group that is moderately "stretched and contracted" can obtain the timing of "relaxation - extension - shortening" and operate in a coordinated manner. When stretching the upper arms outward, there is no significant change in the load applied by the load applying unit 130 (weight 131) with respect to the horizontal movement of the gripping unit 11 (main drive shaft unit 4).

[0070] When the user bends both arms and pulls down the gripping unit 11, the user gradually spreads both arms outward so that each load transmission mechanism unit 1A faces the outside, against the force that biases the rotation of each load transmission mechanism unit 1A to face the front direction. Since the force that biases the rotation of the load transmission mechanism unit 1A to face the front direction is approximately inversely proportional to the position (height) of the load transmission mechanism unit 1A, as the user bends both arms and pulls down the gripping unit 11, the resistance to spreading both arms outward decreases. Therefore, when bending both arms and pulling down the gripping unit 11, the user can smoothly perform the operation of gradually spreading both arms outward while pulling down the gripping unit 11 by outputting a substantially constant muscle force to spread both arms outward, and it is possible to prevent co - contraction of the agonist and antagonist muscles.

[0071] The agonist is the muscle strength that generates the main force for movement. The antagonist is the muscle strength that has the opposite action to the agonist and provides a certain degree of resistance or reverse movement to a specific movement. The antagonist has the role of controlling the function of the agonist by performing the opposite movement. For example, in the movement of bending the elbow, the biceps brachii corresponds to the agonist, and the triceps brachii on the opposite side (the back side) of the biceps brachii corresponds to the antagonist. On the other hand, in the movement of extending the elbow, the triceps brachii corresponds to the agonist, and the biceps brachii corresponds to the antagonist. Muscles are in a relaxed and extended state when no force is applied (relaxed), and muscles exert force by shortening (contracting). For example, the movement of bending the elbow is performed by the shortening of the biceps brachii and the extension of the triceps brachii, which is the antagonist. However, if force is applied to both the biceps brachii and the triceps brachii and they try to shorten simultaneously, the elbow cannot be bent. Cocontraction refers to the situation where both the agonist and the antagonist try to shorten simultaneously, which hinders the intended movement. Cocontraction is likely to occur when excessive force is applied to the body and it is in a strained state and cannot relax. In the field of sports, cocontraction becomes a factor inhibiting a series of smooth movements such as pitching, throwing, and hitting, where force is stored (tamed) first and then released.

[0072] Next, after the user pulls down each gripping portion 11 to approximately shoulder height, while following the respective biasing forces due to the load of the load applying portion 130, the user twists the upper arms inward and closes both arms inward while extending both arms, so as to slowly return the back of the hand to the state of sitting following the gripping portion 11. Thereby, one cycle of the training is completed. Then, this training is repeated for an appropriate number of cycles.

[0073] <Second training device 201> Referring to FIGS. 14 to 18, the configuration and operation of the second training device 201 will be described. FIG. 14 is a perspective view of the second training device 201, and FIG. 15 is an enlarged perspective view of the footrest portion 271 of the second training device 201. FIGS. 16 to 18 are side views showing the first to third modes in the form during the use of the second training device 201. <Explanation of the configuration of the second training device 201> As shown in FIG. 14, the second training device 201 includes a seating portion 210 for the user to sit on, a load applying portion 230 for applying a load, and a columnar guide post 240 extending in the vertical direction. Further, the second training device 201 includes a lifting portion 250 guided by the guide post 240 and movably connected in the vertical direction and rotatably, and a gripping portion 260 provided on the lifting portion 250. Further, the second training device 201 includes a footrest portion 271 for placing the user's sole, slide rails 222a, 222b, a load transmission mechanism portion 1B including the footrest portion 271, a tension member 280 having one end connected to the lifting portion 250 and the other end connected to the load transmission mechanism portion 1B, and applying the load by the load applying portion 230 to the lifting portion 250 and the load transmission mechanism portion 1B.

[0074] The lifting portion 250 can apply and use the load transmission mechanism portion 1A. The gripping portion 260 corresponds to the gripping portion 11 of the load transmission mechanism portion 1A and is an input portion for the user to input force.

[0075] First, the structure of the second training device 201 will be described with reference to FIGS. 14 and 15. In the second training device 201 shown in FIG. 14, the seating portion 210 is supported by a framework 220 that serves as the basic frame of the second training device 201. The framework 220 forms the skeleton of the entire second training device 201 and has the function of stabilizing and installing the second training device 201 on the floor surface. The framework 220 can be formed by processing, for example, square column pipe materials or plate materials made of materials having a certain degree of rigidity such as steel, aluminum, stainless steel, and resin, and fixing them by bolts, welding, etc.

[0076] The seating portion 210 includes a seat 211 on which a user sits and a seat support column 212 that supports the seat 211. The seat support column 212 is fixed to the framework 220. And the seat support column 212 holds the seat 211. Although not shown in the figure, the seat support column 212 is provided with a through hole for allowing a tension member 280 to pass therethrough in the front-rear direction. The seat 211 is a location where the user of the second training device 201 sits. As shown in FIG. 14, it is a rectangle that is long in the left-right direction of the second training device 201. This is to enable the user to sit on either the right side or the left side of the seat 211. However, if the user can sit comfortably, it does not have to be a rectangle, and it can be a square or a circle.

[0077] As shown in FIG. 14, the seating portion 210 may be provided with a backrest 215 behind the seat 211 for the user to support their body during use between the load applying portion 230. The framework 220 is provided with a guide column 240 that extends in the vertical direction. As shown in FIG. 14, the guide column 240 is provided at a position in front of the load applying portion 230 and behind the seating portion 210. As shown in FIG. 14, the framework 220 includes an upper housing 225 behind the guide column 240 for guiding the tension member 280 in the vertical direction. And the guide column 240 has its lower end connected to the framework 220 and its upper end connected and fixed to the upper housing 225.

[0078] As shown in FIG. 14, the guide column 240 may be provided with a shock absorber 241. The shock absorber 241 is a member for alleviating the shock when the lifting portion 250 comes into contact with the upper housing 225 and the framework 220. The shock absorber 241 may be realized by rubber, sponge, or the like as an example.

[0079] The guide post 240 is attached with a lifting part 250 shown in Fig. 14. As shown in Fig. 14, the lifting part 250 is attached to be movable up and down with respect to the guide post 240. Although not shown, the lifting part 250 has a through hole for inserting the guide post 240. Therefore, the lifting part 250 moves up and down along the guide post 240. Further, the lifting part 250 is attached to the guide post 240 so as to be rotatable with respect to the guide post 240 about the guide post 240 as the central axis. Therefore, a certain rigidity is required for the guide post 240. Thus, the guide post 240 may be made of stainless steel or the like as an example. In the second training device 201, the load transmission mechanism part 1A according to the above-described first embodiment may be applied as the lifting part 250.

[0080] As shown in Fig. 14, the load transmission mechanism part 1B of the second training device 201 slides along the slide rails 222a and 222b. The slide rails 222a and 222b are suspended from the frame 220 of the second training device 201 and the frame 221 arranged in front of the frame 220, and are fixed at both ends.

[0081] As shown in Fig. 14, the load applying part 230 includes a pair of columnar weight guide posts 232 whose upper and lower parts are fixed with respect to the frame 220, and a weight 233 that is provided to be movable up and down with respect to the weight guide posts 232. The weight 233 is provided with a through hole for inserting the weight guide post 232. The load applying part 230 is configured to be able to adjust the magnitude of the applied load. Specifically, the weight 233 such as a stack weight serving as a weight member is made into a plate-like member, and the load can be adjusted by the number of the plates. Therefore, the load applying part 230 may be provided with a clamp (not shown) that adjusts the number of superposed weights 233 so that they can be connected and separated from each other. Further, an impact absorbing material 231 is provided on the weight guide post 232 to prevent the weight 233 from colliding with the frame 220 with an impact of a certain level or more.

[0082] <Usage method of the second training device 201> Referring to FIGS. 16 to 18, the usage method of the second training device 201 will be described. As shown in FIG. 16, the user sits on the right side of the second training device 201, that is, on the right side of the seat 211 (the front side on the paper surface of FIG. 16). That is, the user sits on the seat 211 with the load transmission mechanism part 1B on the left side and the backrest 215 on the right side. Then, as shown in FIG. 16, the user places the left foot on the footrest part 271 of the load transmission mechanism part 1B and assumes a state where the knee is bent.

[0083] From this state, the user extends the left foot and pushes the load transmission mechanism part 1B. Then, as shown in FIG. 16, the load transmission mechanism part 1B slides along the slide rails 222a and 222b. At this time, a load that tries to pull the load transmission mechanism part 1B backward (in the left direction on the paper surface of FIGS. 16 to 18) of the second training device 201 is applied to the load transmission mechanism part 1B by the tension member 280 connected to the connection part 279.

[0084] Then, from the state where the foot is extended as shown in FIG. 16, the load transmission mechanism part 1B is slowly slid back to its original position along the slide rails 222a and 222b. This movement is repeatedly executed a certain number of times. That is, the user repeats the posture between FIGS. 16 and 17 a predetermined number of times.

[0085] In addition, as shown in FIG. 18, the user may push the load transmission mechanism part 1B further by twisting the waist more than the state shown in FIG. 17. In that case, the user can exercise the waist while extending the foot. Such a posture is possible because the footrest part 271 is configured to be rotatable around the axis of the main shaft part 276 with respect to the main body of the load transmission mechanism part 1B. The user may perform the telescopic movement of the foot between FIGS. 16 and 17, or may perform the telescopic movement of the foot with the twisting of the waist between FIGS. 16 and 18.

[0086] Also, although not shown, the user may sit on the opposite side of the seat 211 in FIGS. 16 to 18 and on the left side of the second training device 201 (the back side in the plane of FIGS. 16 to 18). That is, when the user sits on the seat 211 such that the load transmission mechanism portion 1B is on the left side with the backrest 215 located on the right side of the user, the user can also perform movements with the right foot.

[0087] Therefore, the user can use the second training device 201 to perform bidirectional rotational movements around the waist while exercising both feet. Specifically, the user performs an operation of pushing out while spreading the legs and kicking the load transmission mechanism portion 1B. For this reason, it is an excellent example for strengthening the muscles around the hip joint, pelvis, thighs, knees, etc. of the user.

[0088] Each muscle group of the leg can obtain the timing of "relaxation - elongation - shortening" and can operate in a coordinated manner. Specifically, in the state shown in FIG. 16, it can be said that the load of the load applying portion 230 is not applied to the left foot and the muscle is in a state of "elongation". Also, the state shown in FIG. 16 is a state where the foot is just placed on the footrest portion 271 and is in a relaxed state as a whole, so it can also be said that it is in a state of "relaxation".

[0089] From here, the user applies force to the foot and pushes the load transmission mechanism unit 1B to which the load by the load applying unit 230 is applied. That is, in the process shown in FIGS. 16 to 17 or 18, the load of the load applying unit 230 is applied to the user's left foot, and the muscles of the user's left foot can be brought into a "shortened" state. And in the state shown in FIGS. 17 or 18, by rotating the footrest part 271 with respect to the load transmission mechanism unit 1B, the connecting part 279 is drawn into the load transmission mechanism unit 1B by the internal crank mechanism, whereby the load by the load applying unit 230 applied to the foot is reduced. That is, as shown in FIGS. 17 or 18, in the state of rotating the load transmission mechanism unit 1B, the user's foot can be brought into a "shortened" state. Further, since the load applying unit 230 does not apply a large load to the load transmission mechanism unit 1B with respect to the translational movement of the footrest part 271, the user can concentrate on the load associated with the rotation of the footrest part 271.

[0090] And in the process of transitioning from the state shown in FIGS. 17 or 18 to the state shown in FIG. 16, by returning the leg to the state of FIG. 16, the "elongated" state of the muscle can be produced. Therefore, by repeating the cycle of moving the load transmission mechanism unit 1B from the state shown in FIG. 16 to the state shown in FIGS. 17 or 18 and then returning it to the state shown in FIG. 16, the timing of "relaxation - elongation - shortening" can be produced, and the operation can be performed in a well - coordinated manner. Regarding the movement of the leg, the state shown in FIG. 16 may be used as the initial state, or the state shown in FIGS. 17 or 18 may be used as the initial state to perform one - cycle movement. However, since it is desirable to start the movement from the "relaxed" state, when starting the movement with the state shown in FIGS. 17 or 18 as the initial state, it is desirable to start the movement from a load - free state with the cooperation of others, etc. in the initial state.

[0091] The second training device 201 is structured to train one leg at a time instead of both legs, so there is no need to prepare a load transmission mechanism section 1B for training both legs simultaneously. As a result, its size can be made more compact than when configured to accommodate both feet. Additionally, the second training device 201 can be made narrower than if it had two load transmission mechanism sections 1B for both legs, thus reducing the area of the space that needs to be prepared as an installation space. In the movements shown in FIGS. 16 and 17, the user may sit on the seating portion 210 with the load transmission mechanism section 1B facing forward and the backrest 215 on their back, and perform the movement with respect to the second training device 201.

[0092] <Summary of the First Training Device 100 and the Second Training Device 201> The aforementioned first training device 100 and second training device 201 are devices that appropriately perform training on the muscles of the shoulders, arms, back, legs, etc. through initial load training (registered trademark). Here, initial load training is defined as "training that utilizes the body's changes to the position where reflexes occur and the accompanying changes in the center of gravity position, etc., promotes the series of movements of "relaxation - extension - shortening" of the prime mover muscles, and performs the training while preventing the co - contraction of the antagonist muscles and the muscles that act antagonistically." A reflex is an unconscious reaction. Initial load training is completely different from end - load training, which hypertrophies muscles while applying load until the end and accompanied by muscle tension (hardening). For initial load training, it is necessary to grasp the overall movement image, such as the point of applying load, the point and angle of releasing the load, rhythm, and continuity of muscle output, and then perform the training. Conventional load training has the problem that it is difficult to take appropriate actions and forms due to body balance and partial hardening, etc. However, the first training device 100 and second training device 201 that realize initial load training can easily induce training with an ideal series of movements and forms.

[0093] In the initial load training using the first training device 100 and the second training device 201, first, the "force transmission between joints from the central part (the trunk of the body) to the terminal part" is carried out, that is, the muscles of the human body that have the characteristic of not trying to stretch but contracting by themselves are relaxed to a relaxed state. Then, in the initial load training, an appropriate load is applied to the muscle spindles and tendon organs, which are sensory receptors, to cause a muscle stretch reflex and moderately stretch the muscles. From the moment when the muscles are stretched appropriately or when they are passively stretched, the exertion of force when the muscles contract is induced. By gradually reducing the load instantaneously and continuously, an active state without cocontraction can be obtained, and it becomes possible to promote and develop neuromuscular control. The muscle stretch reflex is one of the spinal reflexes and refers to the phenomenon in which skeletal muscles contract when they are passively stretched. This contraction occurs when the muscle spindles in the muscles sense the tension generated by the muscle stretch. The muscle stretch reflex also has a defensive function aspect in that overly stretched muscles contract to avoid damage. An example of the muscle stretch reflex is the knee-jerk reflex. The myocardium is said to be the only muscle in the human body that does not cause cocontraction. The initial load training is a training that promotes a series of actions of "relaxation - extension - contraction" for muscles other than the myocardium while preventing cocontraction.

[0094] The initial load training using the first training device 100 and the second training device 201 is a training that utilizes the load of the training device to cause a reflex in the muscles, enabling the muscles that should originally function to work properly, and enhancing the functions of the muscles and nerves. A load is used as a catalyst to promote good-timed stretching and shortening of the relaxed muscles. Through such training, a series of actions of "relaxation - extension - shortening" are promoted, and furthermore, co-contraction is prevented, thereby enhancing the functions and coordination of the nerves and muscles, reducing the burden on the body such as muscle pain and fatigue, and obtaining flexible and elastic muscles without accompanying muscle hardening. Also, by promoting aerobic metabolism with less forced increase in heart rate and blood pressure, it is effective in preventing lifestyle-related diseases such as diabetes and hypertension, and promoting the healing of ligament injuries and fractures, etc., and can create a beneficial state for the body such as relieving stress on the nerves, muscles, and joints and removing waste products.

[0095] <Configuration of the Load Transmission Mechanism Unit 1C for the Training Device of the Third Embodiment> Referring to FIG. 19, the load transmission mechanism unit 1C for the training device of the third embodiment (hereinafter referred to as the load transmission mechanism unit 1C) will be described. FIG. 19 is a front view for explaining the internal configuration of the load transmission mechanism unit 1C according to the third embodiment. The load transmission mechanism unit 1C is a modified example of the load transmission mechanism unit 1A, is attached to the first training device 100 and used, and receives an input from the user's hand. Hereinafter, in the description of the load transmission mechanism unit 1C, only the differences from the load transmission mechanism unit 1A will be described, and the common points with the load transmission mechanism unit 1A are denoted by the same reference numerals as those of the load transmission mechanism unit 1A in FIG. 19 and the description thereof is omitted.

[0096] The load transmission mechanism unit 1C is configured such that a feed roll 28 is further added to the configuration of the load transmission mechanism unit 1A. The first guide roll 26, the second guide roll 27, and the feed roll 28 are attached near the top of the guide support 140 via a mounting bracket 141. The tension member 25 extends from the load applying portion 130 and is inserted and wound around the first guide roll 26, the second guide roll 27, the feed roll 28, and the direction-changing guide wheel 170. The tension member 25 is connected to the sliding shaft portion 13 to transmit the tension 19, extends in the tangential direction of the outer peripheral surface of the columnar feed roll 28, and changes the extension direction in accordance with the axial and linear movements of the sliding shaft portion 13. The tension member 25 connected to the second end portion 13c of the sliding shaft portion 13 extends in accordance with the horizontal movement of the second end portion 13c and changes the angle of the extension direction from the feed roll 28.

[0097] The feed roll 28 has a disk shape and an annular groove 28a extending in the circumferential direction is formed on the outer peripheral surface (see FIG. 19). The tension member 25 is fitted and held in the groove 28a. The feed roll 28 is disposed between the first guide roll 26 and the second guide roll 27 and the sliding shaft portion 13 to restrict the movement of the tension member 25 in the front-rear direction (left and right on the paper surface of FIG. 19). The feed roll 28 rotates in accordance with the advancement and retraction of the tension member 25 due to the friction generated between the feed roll 28 and the tension member 25.

[0098] <Configuration of the load transmission mechanism portion 1D for the training device of the fourth embodiment> Referring to FIG. 20, the load transmission mechanism portion 1D for the training device of the fourth embodiment (hereinafter referred to as the load transmission mechanism portion 1D) will be described. FIG. 20 is a front view for explaining the internal configuration of the load transmission mechanism portion 1D according to the fourth embodiment. The load transmission mechanism portion 1D is a modified example of the load transmission mechanism portion 1B and a modified example of the load transmission mechanism portion 1C, is attached to the second training device 201 and used, and receives an input from the user's foot. Hereinafter, in the description of the load transmission mechanism portion 1D, only the differences from the load transmission mechanism portion 1B will be described, and the common points with the load transmission mechanism portion 1B are denoted by the same reference numerals as those of the load transmission mechanism portion 1B in FIG. 20 and the description thereof will be omitted.

[0099] The load transmission mechanism unit 1D has a configuration in which a feed roll 28 is further added to the configuration of the load transmission mechanism unit 1B. Also, the load transmission mechanism unit 1D is different from the load transmission mechanism unit 1C in the configuration of the driving shaft portion 276. The driving shaft portion 276 protrudes the tip portion 276c on the same side surface as the sliding shaft portion 13, and is different from the load transmission mechanism unit 1A in that the footrest portion 271 is connected to the tip portion 276c.

[0100] The first guide roll 26, the second guide roll 27, and the feed roll 28 are attached near the tip of the guide support 140 via the mounting bracket 141. Note that the load transmission mechanism unit 1B shown in FIG. 7, the load transmission mechanism unit 1D shown in FIG. 20, and the load transmission mechanism unit 1F shown in FIG. 22 are equipped with the footrest portion 271 and mounted on the second training device 201. In this case, the first guide roll 26, the second guide roll 27, and the feed roll 28 are installed near the lower part of the seat 211 or the like via the mounting bracket 141. The tension member 25 extends from the load applying portion 230 and is inserted and wound around the first guide roll 26, the second guide roll 27, the feed roll 28, and the pulley 285h. Similar to the load transmission mechanism unit 1C, the tension member 25 is connected to the sliding shaft portion 13 to transmit the tension 19, extends in the tangential direction of the outer peripheral surface of the cylindrical feed roll 28, and changes the extension direction in accordance with the axial and linear movements of the sliding shaft portion 13. The tension member 25 connected to the second end portion 13c of the sliding shaft portion 13 extends in accordance with the horizontal movement of the second end portion 13c and changes the angle in the extension direction from the feed roll 28.

[0101] Similar to the load transmission mechanism unit 1C, the feed roll 28 has a disk shape and an annular groove 28a extending in the circumferential direction is formed on the outer peripheral surface (see FIG. 20). The tension member 25 is fitted and held in the groove 28a. The feed roll 28 is disposed between the first guide roll 26 and the second guide roll 27 and the sliding shaft portion 13 to regulate the movement of the tension member 25 in the front-rear direction (the vertical direction on the paper surface of FIG. 20). The feed roll 28 rotates in accordance with the advancement and retraction of the tension member 25 due to the friction generated between the feed roll 28 and the tension member 25, similar to the load transmission mechanism section 1C.

[0102] <Configuration of the Load Transmission Mechanism Section 1E for the Training Instrument of the Fifth Embodiment> Referring to FIG. 21, the load transmission mechanism section 1E for the training instrument of the fifth embodiment (hereinafter referred to as the load transmission mechanism section 1E) will be described. FIG. 21 is a front view for explaining the internal configuration of the load transmission mechanism section 1E according to the fifth embodiment. The load transmission mechanism section 1E is a modified example of the load transmission mechanism section 1A, is attached to the first training instrument 100 and used, and receives an input from the user's hand. Hereinafter, in the description of the load transmission mechanism section 1E, only the differences from the load transmission mechanism section 1A will be described, and the common points with the load transmission mechanism section 1A are denoted by the same reference numerals as those of the load transmission mechanism section 1A in FIG. 21, and the description thereof will be omitted.

[0103] The load transmission mechanism section 1E has a configuration in which the first guide roll 26, the second guide roll 27, and the mounting bracket 141 are removed from the configuration of the load transmission mechanism section 1A. The tension member 25 extends from the load applying section 230, is inserted into and wound around the direction-changing guide wheel 170, and is connected to the sliding shaft portion 13. The tension member 25 is connected to the sliding shaft portion 13 to transmit the tension 19, and changes the extension direction in accordance with the axial and linear movements of the sliding shaft portion 13. The tension member 25 connected to the second end portion 13c of the sliding shaft portion 13 extends in accordance with the horizontal movement of the second end portion ************* 13c and changes the angle of the extension direction from the direction-changing guide wheel 170.

[0104] <Configuration of the Load Transmission Mechanism Section 1F for the Training Instrument of the Sixth Embodiment> It should be noted that there seems to be some text missing in the middle of the translation of item . You can check and provide the complete text for a more accurate translation.Referring to FIG. 22, the load transmission mechanism unit 1F for the training device according to the sixth embodiment (hereinafter referred to as the load transmission mechanism unit 1F) will be described. FIG. 22 is a front view for explaining the internal configuration of the load transmission mechanism unit 1F according to the sixth embodiment. The load transmission mechanism unit 1F is a modified example of the load transmission mechanism unit 1B and also a modified example of the load transmission mechanism unit 1E. It is attached to the second training device 201 and used to receive an input from the user's foot. Hereinafter, in the description of the load transmission mechanism unit 1F, only the differences from the load transmission mechanism unit 1B will be described, and the same reference numerals as those of the load transmission mechanism unit 1B in FIG. 22 are given for the common points, and the description thereof will be omitted.

[0105] The load transmission mechanism unit 1F has a configuration in which the first guide roll 26, the second guide roll 27, and the mounting bracket 141 are removed from the configuration of the load transmission mechanism unit 1B. Further, the load transmission mechanism unit 1F is different from the load transmission mechanism unit 1E in the configuration of the drive shaft portion 276 as compared with the load transmission mechanism unit 1E. The drive shaft portion 276 projects the tip portion 276c on the same side as the sliding shaft portion 13, and is different from the load transmission mechanism unit 1A in that the footrest portion 271 is connected to the tip portion 276c. The tension member 25 extends from the load applying portion 230, is inserted through and wound around the pulley 285h, and is connected to the sliding shaft portion 13. The tension member 25 is connected to the sliding shaft portion 13 to transmit the tension 19, and changes the extension direction in accordance with the movement of the sliding shaft portion 13 in the axial direction and the linear direction. The tension member 25 connected to the second end portion 13c of the sliding shaft portion 13 extends in accordance with the horizontal movement of the second end portion 13c, and changes the angle of the extension direction from the pulley 285h.

[0106] <Configuration of the load transmission mechanism unit 1G for the training device according to the seventh embodiment> Referring to FIGS. 23 and 24, the load transmission mechanism unit 1G for the training device according to the seventh embodiment (hereinafter referred to as the load transmission mechanism unit 1G) will be described. FIG. 23 is a front view for explaining the internal configuration of the load transmission mechanism unit 1G, and FIG. 24 is a perspective view for explaining the internal configuration of the load transmission mechanism unit 1G. The load transmission mechanism unit 1G is a modified example of the load transmission mechanism unit 1B, and is attached to the second training device 201 and used to receive an input from the user's foot. Hereinafter, in the description of the load transmission mechanism unit 1G, only the differences from the load transmission mechanism unit 1B will be described, and the common points with the load transmission mechanism unit 1B are denoted by the same reference numerals as the load transmission mechanism unit 1B in FIGS. 23 and 24, and the description thereof will be omitted.

[0107] The guiding direction of the linear guiding part 20 of the load transmission mechanism unit 1G is different from that of the load transmission mechanism unit 1B. The guiding direction of the slider 20c of the linear guiding part 20 of the load transmission mechanism unit 1G is a direction perpendicular to the paper surface of FIG. 23 and perpendicular to the extending direction of the transmission chain 10. Therefore, the extending directions of the first guide 20a and the second guide 20b of the linear guiding part 20 are a direction perpendicular to the paper surface of FIG. 23 and perpendicular to the extending direction of the transmission chain 10.

[0108] Since the connection fixing part 23 is fixed to the slider 20c, the connection fixing part 23 reciprocates in the horizontal direction in a direction perpendicular to the paper surface of FIG. 23. The driving shaft part 276 and the sliding shaft part 13 move horizontally together with the connection fixing part 23. The horizontal movement of the driving shaft part 276 involves a load because it pulls the tension member 25 connected to the sliding shaft part 13. Further, the rotational movement of the driving shaft part 276 involves a displacement in the axial direction of the sliding shaft part 13 and further involves a load because it pulls the tension member 25.

[0109] The upper surface 22a of the housing part 22 is provided with a long hole 34 for the driving shaft part 276 to protrude to the outside. The driving shaft part 276 reciprocates inside the long hole 34 in the direction of arrow 276a. Further, the upper surface 22a of the housing part 22 is provided with a long hole 33 for the sliding shaft part 13 to protrude to the outside. The sliding shaft part 13 reciprocates inside the long hole 33 in the direction of arrow 13d.

[0110] The rotational movement of the footrest portion 271 attached to the tip portion 276c of the drive shaft portion 276 is transmitted as the rotational movement of the intermediate shaft bevel gear 5d via the transmission chain 10. The rotational movement of the intermediate shaft bevel gear 5d is transmitted to the orthogonal shaft bevel gear 6c that constitutes the second rotational transmission portion 1M together with the intermediate shaft bevel gear 5d. Since the resistance due to the load of the tension member 25 acts on the rotational movement of the orthogonal shaft bevel gear 6c via the link mechanism portion 30 and the sliding shaft portion 13, a force that moves the intermediate shaft bevel gear 5d in the horizontal direction in the same direction as the rotational movement acts on the intermediate shaft bevel gear 5d as a reaction to the rotational movement. The force that moves the intermediate shaft bevel gear 5d in the horizontal direction acts on the drive shaft portion 276 and the footrest portion 271 via the connection fixing portion 23.

[0111] Therefore, when the user rotates the foot placed on the footrest portion 271 clockwise, the footrest portion 271 moves horizontally with a load in the right direction as viewed from the user. On the other hand, when the user rotates the foot placed on the footrest portion 271 counterclockwise, the footrest portion 271 moves horizontally with a load in the left direction as viewed from the user. For this reason, the user's leg moves horizontally in the same direction as the rotational movement along with the rotational movement of the footrest portion 271. Therefore, since both rotational movement and lateral movement occur simultaneously in the user's leg, a composite movement using a plurality of leg muscles can be performed. Furthermore, when the user adds a flexion and extension movement of the leg placed on the footrest portion 271, the user's leg can perform three-directional movements of rotational movement, lateral movement, and flexion and extension movement simultaneously. Therefore, a three-directional composite movement using a wide range of leg muscles can be performed.

[0112] <Configuration of the load transmission mechanism portion 1H for the training device according to the eighth embodiment> Referring to FIG. 25, the load transmission mechanism portion 1H for the training device according to the eighth embodiment (hereinafter referred to as the load transmission mechanism portion 1H) will be described. FIG. 25 is a front view for explaining the internal configuration of the load transmission mechanism portion 1H. The load transmission mechanism part 1H is a modified example of the load transmission mechanism part 1A and also a modified example of the load transmission mechanism part 1G. It is attached to the first training device 100 and used to receive an input from the user's hand. While the load transmission mechanism part 1G is mainly used for the movement of the lower limbs and is mounted on the second training device 201, the load transmission mechanism part 1H is mainly used for the movement of the upper limbs and is mounted on the first training device 100 for use. Also, the load transmission mechanism part 1H is different from the load transmission mechanism part 1G in the configuration of the driving shaft part 4. The driving shaft part 4 has its tip protruding from the side surface opposite to the sliding shaft part 13, and is different from the load transmission mechanism part 1G in that the gripping part 11 is connected to the tip. Hereinafter, in the description of the load transmission mechanism part 1H, only the differences from the load transmission mechanism part 1A will be described, and for the common points with the load transmission mechanism part 1A, the same reference numerals as those of the load transmission mechanism part 1A are given in FIG. 25 and the description thereof is omitted.

[0113] The load transmission mechanism part 1H has a different guiding direction of the linear motion guide part 20 from that of the load transmission mechanism part 1A. The guiding direction of the slider 20c of the linear motion guide part 20 of the load transmission mechanism part 1H is a direction perpendicular to the paper surface of FIG. 25 and perpendicular to the extending direction of the transmission chain 10. Therefore, the extending directions of the first guide 20a and the second guide 20b of the linear motion guide part 20 are a direction perpendicular to the paper surface of FIG. 25 and perpendicular to the extending direction of the transmission chain 10.

[0114] The rotational motion of the gripping part 11 attached to the tip of the driving shaft part 4 is transmitted as the rotational motion of the intermediate shaft bevel gear 5d via the transmission chain 10. The rotational motion of the intermediate shaft bevel gear 5d is transmitted to the orthogonal shaft bevel gear 6c constituting the second rotational transmission part 1M. Since a resistance force due to the load of the tension member 25 acts on the rotational motion of the orthogonal shaft bevel gear 6c via the link mechanism part 30 and the sliding shaft part 13, a force for moving the intermediate shaft bevel gear 5d in the horizontal direction in the same direction as the rotational motion acts on the intermediate shaft bevel gear 5d as a reaction to the rotational motion. The force for moving the intermediate shaft bevel gear 5d in the horizontal direction acts on the driving shaft part 4 and the gripping part 11 via the connection fixing part 23.

[0115] Therefore, for example, in accordance with the initial state of the load transmission mechanism unit 1H (see FIGS. 8 and 9) where the user stands up and faces the front direction, with the back of the hand facing the outside of the left and right of the first training device 100, the gripping portions 11 are respectively gripped. When the user rotates the gripping portion 11 clockwise as viewed from above in this state, the gripping portion 11 undergoes a horizontal movement with a load in the same direction as the rotational movement, that is, in the right direction as viewed from the user. On the other hand, when the user rotates the gripping portion 11 counterclockwise as viewed from above in this state, the gripping portion 11 undergoes a horizontal movement with a load in the same direction as the rotational movement, that is, in the left direction as viewed from the user.

[0116] For this reason, the user's arm undergoes a horizontal movement in the same direction as the rotational movement along with the rotational movement of the gripping portion 11. Therefore, since both the rotational movement and the lateral movement occur simultaneously in the user's arm, a combined movement using a plurality of muscles in the arm can be performed. Furthermore, by adding a movement of pulling the arm downward, the user's arm can perform three-directional movements of rotational movement, lateral movement, and pulling-down movement simultaneously. Therefore, a three-directional combined movement using a wide range of muscles in the arm can be performed.

[0117] It should be noted that the present invention is not limited to the load transmission mechanism units 1A, 1B, 1C, 1D, 1E, 1F, 1G, and 1H for the training device according to the above-described embodiments, and the training devices 100 and 201 using the same. It can be implemented by various other modified examples or application examples without departing from the gist of the present invention described in the claims.

Explanation of Reference Numerals

[0118] 1A Load transmission mechanism unit for the training device of the first embodiment 1B Load transmission mechanism unit for the training device of the second embodiment 1C Load transmission mechanism unit for the training device of the third embodiment 1D Load transmission mechanism unit for the training device of the fourth embodiment 1E Load transmission mechanism part for training equipment of the fifth embodiment 1F Load transmission mechanism part for training equipment of the sixth embodiment 1G Load transmission mechanism part for training equipment of the seventh embodiment 1H Load transmission mechanism part for training equipment of the eighth embodiment 1K First rotation transmission part 1M Second rotation transmission part 4 Driving shaft part 4a Driving bearing 4b Driving bearing 4c Driving sprocket 5 Intermediate shaft part 5a Intermediate bearing 5b Intermediate bearing 5c Intermediate sprocket 5d Intermediate bevel gear 6 Orthogonal shaft part 6a Orthogonal bearing 6c Orthogonal bevel gear 7 Connection part 8 Connection cylinder part 10 Transmission chain 11 Gripping part 11a Gripping bar 11b Frame part 13 Sliding shaft part 13a Sliding bearing 13b First end part 13c Second end part 13d Arrow 19 Tension 20 Straight path guiding part 20a First guide 20b Second guide 20c Slider 20d Guide support base 22 Housing part 22a Upper surface 23 Connecting and fixing part 23a First fixing piece 23b Second fixing piece 25 Tensile member 26 First guide roll 26a Groove 27 Second guide roll 27a Groove 28 Feed Roll 28a Groove 30 Link Mechanism Section 30a First Link 30b Second Link 30c First Joint 30d Second Joint 33 Slot 34 Slot 100 First Training Device 100a First Training Device for Both Arms 100b First Training Device for One Arm 110 Seating Section 111 Seat 112 Seat Support 120 Frame 121 Thigh Pressing Section 130 Load Application Section 131 Weight 132 Weight Guide Support 133 Box Section 134 Movable Pulley 135 Support Stand 136 Hole 140 Guide Support 141 Mounting Bracket 170 Direction Changing Guide Wheel 170a Groove 181 Tensile Member Connection Section 201 Second Training Device 210 Seating Section 211 Seat 212 Seat Support 215 Backrest 220 Frame 221 Frame 222a Slide Rail 222b Slide Rail 225 Upper Housing 230 Load Application Section 231 Shock Absorbing Material 232 Weight Guide Support 233 Weight 240 Guide Support 241 Shock Absorbing Material 250 Lifting and rocking member 251 Shaft 271 Footrest part 272 Bearing 273 Third rotating shaft 274a Side plate 274b Side plate 275 Connection plate 276 Driving shaft part 276a Arrow 276c Tip part 277 Upper part of the body 278 Lower part of the body 279 Connection part 280 Tensile member 280a First tensile member 280b Connection part 280c Second tensile member 285h Pulley

Claims

1. An input unit for a user to input force is connected to an end, a driving shaft portion that rotates together with the input unit, an intermediate shaft portion that rotates in conjunction with the rotation of the driving shaft portion, a first rotation transmission portion that cooperates between the driving shaft portion and the intermediate shaft portion and is used for transmitting rotation between the driving shaft portion and the intermediate shaft portion, a second rotation transmission portion that cooperates between the intermediate shaft portion and an orthogonal shaft portion orthogonal to the intermediate shaft portion and is used for transmitting rotation between the intermediate shaft portion and the orthogonal shaft portion, a sliding shaft portion that receives tension from the outside and is supported by a bearing and allows reciprocating movement in the axial direction of the bearing, a connecting and fixing portion for connecting the driving shaft portion, the intermediate shaft portion, the orthogonal shaft portion, and the bearing, and a linear motion guiding portion for guiding the connecting and fixing portion to move in a linear direction parallel to the extending direction of the first rotation transmission portion, a tension member that is connected to the sliding shaft portion to transmit the tension and changes the elongation direction in accordance with the movement of the sliding shaft portion in the axial direction and the linear direction, a link mechanism portion with both ends connected to the orthogonal shaft portion and the sliding shaft portion, which converts the rotational movement of the orthogonal shaft portion into the reciprocating movement of the sliding shaft portion, A load transmission mechanism portion for a training device, characterized by comprising the above.

2. The load transmission mechanism portion for a training device according to claim 1, wherein the input unit is a gripping portion for a user to grip or a footrest portion for a user.

3. The load transmission mechanism portion for a training device according to claim 1, characterized by comprising a connection portion for connecting to a training device.

4. The first rotation transmission portion is a transmission chain, a driving shaft sprocket is provided on the driving shaft portion, an intermediate shaft sprocket is provided on the intermediate shaft portion, The load transmission mechanism portion for a training device according to claim 1, characterized in that the transmission chain is suspended between the driving shaft sprocket and the intermediate shaft sprocket.

5. The second rotation transmission portion is an intermediate shaft bevel gear provided on the intermediate shaft portion, The load transmission mechanism portion for a training device according to claim 1, characterized by comprising an orthogonal shaft bevel gear provided on the orthogonal shaft portion and meshing with the intermediate shaft bevel gear.

6. The load transmission mechanism portion for a training device according to claim 2, characterized in that the gripping portion is an annular object.

7. The load transmission mechanism for a training device according to claim 1, wherein the tension is generated by a load applying unit that freely adjusts the magnitude of the load of the training device.

8. A training device comprising the load transmission mechanism for a training device according to claim 1.

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