Load transmission device for training device

Abstract

The invention discloses a load transmission device for training equipment, which can act a plurality of training parts at the same time and apply a composite load. The load transmission device for the training instrument is provided with a driving shaft part, an intermediate shaft part, a first rotation transmission part, a second rotation transmission part for rotation between the intermediate shaft part and a crankshaft part, a sliding shaft part, and a connecting and fixing part for connecting the driving shaft part, the intermediate shaft part, the crankshaft part and a bearing. The linear motion guiding part guides the connecting and fixing part in the linear direction parallel to the extending direction of the first rotation transmission part, the tension component is connected to the sliding shaft part to transmit tension, and the extending direction of the tension component is changed according to the movement of the sliding shaft part in the axial direction and the linear direction, and the end of the tension component is connected to the crankshaft part and the sliding shaft part. And the connecting component is used for converting the rotation linkage of the crankshaft part into the reciprocating motion of the sliding shaft part.

Description

Technical Field

[0001] The present invention relates to a load transfer device for a training apparatus and a training apparatus using the load transfer device. Background Art

[0002] Muscle strength training is not limited to sports; it is also widely recognized as beneficial for healthy daily life. Muscle strength training typically involves applying a load during physical exercise. A wide variety of training equipment is available for this type of training. For example, Patent Document 1 discloses a device that applies a load to the abdomen and waist during exercise.

[0003] The training device described in Patent Document 1 employs two relay rollers between a tension portion (e.g., a suspension strap) extending from a weight plate (load) and an input portion (e.g., a pressure pad pressed by the user). This allows the tension exerted by the weight plate (load) on the tension portion to be reversely transmitted to the input portion. During training using the training device described in Patent Document 1, the load is applied in a unidirectional reciprocating motion, causing the exerciser's upper body to be pulled up or laid down.

[0004] Strength training involves exercising multiple muscles around the skeleton through compound movements, thereby developing muscle strength with both flexibility and elasticity. However, the training device described in Patent Document 1 relies on monotonous movements, involving a limited range of muscle movement, which can lead to stiffening and loss of flexibility and elasticity. Therefore, strength training requires a training device that can simultaneously exercise multiple directions during muscle loading training. Prior art literature Patent Literature

[0005] Patent Document 1: Japanese Patent Publication No. 2004-187724 Summary of the Invention Technical problem to be solved by the invention

[0006] Therefore, the present invention aims to provide a load transfer device for training equipment and a training equipment using the load transfer device, which can apply load to the complex movement of the target training part by moving the target training part in multiple directions at the same time during muscle training. Technical means to solve the problem

[0007] The load transmission device for training equipment of the first embodiment is characterized in that it has an active shaft portion, the end of which is connected to an input portion for user force application and rotates together with the input portion; an intermediate shaft portion, which rotates in conjunction with the rotation of the active shaft portion; a first rotation transmission portion, which is connected to the active shaft portion and the intermediate shaft portion and is used to transmit the rotation between the active shaft portion and the intermediate shaft portion; a second rotation transmission portion, which is provided between the intermediate shaft portion and a crankshaft portion orthogonal to the intermediate shaft portion and is used to transmit the rotation between the intermediate shaft portion and the crankshaft portion; a sliding shaft portion, which is It withstands external pressure, is supported by bearings, and allows reciprocating motion in the axial direction of the bearings; a linear motion guide portion, the linear motion guide portion has a connecting and fixing portion connecting the active shaft portion, the intermediate shaft portion, the crankshaft portion, and the bearing, and guides the connecting and fixing portion in a linear direction parallel to the extension direction of the first rotation transmission portion; a tension member, the tension member is connected to the sliding shaft portion to transmit tension, and changes the extension direction according to the axial direction and linear movement of the sliding shaft portion; a connecting member, the end of the connecting member is connected to the crankshaft portion and the sliding shaft portion, and converts the rotation linkage of the crankshaft portion into reciprocating motion of the sliding shaft portion.

[0008] The training apparatus of the second embodiment is characterized in that it includes the load transmission device for the training apparatus of the first embodiment. Effects of the Invention

[0009] The load transmission device for training equipment of the first embodiment of the present invention is characterized in that it has an active shaft portion, the end of which is connected to an input portion to which a user applies force and rotates together with the input portion; an intermediate shaft portion, which rotates in conjunction with the rotation of the active shaft portion; a first rotation transmission portion, which is connected to the active shaft portion and the intermediate shaft portion and is used to transmit the rotation between the active shaft portion and the intermediate shaft portion; a second rotation transmission portion, which is provided between the intermediate shaft portion and a crankshaft portion orthogonal to the intermediate shaft portion and is used to transmit the rotation between the intermediate shaft portion and the crankshaft portion; a sliding shaft portion, which is used to transmit the rotation between the intermediate shaft portion and the crankshaft portion; The first rotation transmission portion includes a first portion, a second portion, and a second portion. The first portion is supported by a bearing and is subjected to external pressure and is allowed to reciprocate in the axial direction of the bearing. The first portion includes a linear motion guide portion, which includes a connecting and fixing portion connecting the active shaft portion, the intermediate shaft portion, the crankshaft portion, and the bearing, and guides the connecting and fixing portion in a linear direction parallel to the extension direction of the first rotation transmission portion. The first portion includes a tension member, which is connected to the sliding shaft portion to transmit tension and changes its extension direction according to the axial and linear movement of the sliding shaft portion. The second portion includes a connecting member, whose end portion is connected to the crankshaft portion and the sliding shaft portion, and converts the rotation linkage of the crankshaft portion into reciprocating motion of the sliding shaft portion. The above structure allows the target training part to move simultaneously in multiple directions during strength training related to muscle load, thereby applying load to the complex movement of the target training part. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 A front view illustrating the internal structure of a load transfer device 1A for a training apparatus according to a first embodiment; Figure 2 A side view illustrating the structure of a load transfer device 1A for a training apparatus according to a first embodiment; Figure 3 A perspective view for explaining the internal structure of the load transfer device 1A for a training apparatus according to the first embodiment; Figure 4 1A is a structural diagram for explaining a connecting member in a load transmission device 1A for a training apparatus according to a first embodiment; Figure 5 Schematic diagram for explaining the internal operation of the load transmission device 1A for training equipment in the first embodiment; Figure 6 Schematic diagram for explaining the operation of the connecting member in the load transmission device 1A for training equipment in the first embodiment; Figure 7 A front view for explaining the internal structure of a load transmission device 1B for a training apparatus according to a second embodiment; Figure 8 is an oblique view of the first training apparatus for both arms; Figure 9 It is a front view of the first training device for both arms; Figure 10 This is an oblique view of the first training device for both arms in use; Figure 11 It is a front view of the first training device for both arms in use; Figure 12 This is an oblique view of the first training device for single arm; Figure 13 It is a front view of the first training device for single arm; Figure 14 is an oblique view of the second training device; Figure 15 is an enlarged view of the footrest in the second training device; Figure 16 is a side view of the second training device in the first form when in use; Figure 17 is a side view of the second training device in a second configuration when in use; Figure 18 is a side view of the second training device in a third configuration when in use; Figure 19 A front view illustrating the internal structure of a load transfer device 1C for a training apparatus according to a third embodiment; Figure 201D is a front view for explaining the internal structure of a load transmission device 1D for a training apparatus according to a fourth embodiment; Figure 21 It is a front view for explaining the internal structure of the load transmission device 1E for training equipment in the fifth embodiment; Figure 22 A front view illustrating the internal structure of a load transfer device 1F for a training apparatus according to a sixth embodiment; Figure 23 1G is a front view for explaining the internal structure of a load transmission device 1G for a training apparatus according to a seventh embodiment; Figure 24 A perspective view for explaining the internal structure of a load transmission device 1G for a training apparatus according to a seventh embodiment; Figure 25 It is a front view for explaining the internal structure of the load transmission device 1H for training equipment in the eighth embodiment. DETAILED DESCRIPTION

[0011] <Overview of the Load Transmission Device 1A for a Training Apparatus in the First Embodiment> See also Figures 1 to 6 The load transmission device 1A for a training apparatus in the first embodiment (hereinafter referred to as the load transmission device 1A) is described. The load transmission device 1A is used to connect the first training apparatus 100 and the second training apparatus 201 described below, and is used to receive the force applied from the user's hand.

[0012] <Description of the Structure of the Load Transmission Device 1A> See also Figures 1 to 6 The following describes the structure and operation of the load transfer device 1A in the first embodiment. Figures 1 to 4 , the structure of the load transfer device 1A will be described. Figure 1 1A is a front view for explaining the internal structure of the load transfer device 1A. Figure 2 1A is a side view for explaining the structure of the load transfer device. Figure 3 This is a perspective view for explaining the internal structure of the load transfer device 1A. Figure 4 1A is a diagram for explaining the structure of the connection member 30 in the load transmission device 1A.

[0013] The load transfer device 1A is provided with a housing portion 22. Figure 1 and Figure 3 This is a diagram illustrating the internal structure of the load transfer device 1A. Figure 1 and Figure 3In the figure, the housing 22 is indicated by a dotted line. The housing 22 contains a driving shaft 4, an intermediate shaft 5, a crankshaft 6, and a sliding shaft 13. The driving shaft 4 and the sliding shaft 13 can transmit force in two directions between the driving shaft 4 and the sliding shaft 13 via their respective shafts. A grip 11 for inputting user force is connected to the end of the driving shaft 4. The grip 11 rotates in conjunction with the driving shaft 4 and moves horizontally along the longitudinal direction of the housing 22, i.e., toward and away from the sliding shaft 13. A first rotation transmission portion 1K is connected between the driving shaft 4 and the intermediate shaft 5 to transmit rotation between the driving shaft 4 and the intermediate shaft 5. The intermediate shaft 5 rotates in conjunction with the rotation of the driving shaft 4. Furthermore, since the intermediate shaft 5, the crankshaft 6, and the sliding shaft 13 are connected to the driving shaft 4 via a connecting and fixing portion 23 (described later), they move horizontally in sync with the horizontal movement of the driving shaft 4. The housing portion 22 constitutes an outer wall of the load transmission device 1A.

[0014] The crankshaft portion 6 and the intermediate shaft portion 5 are perpendicular to each other. A second rotation transmission portion 1M is connected between the intermediate shaft portion 5 and the crankshaft portion 6 to transmit rotation between the intermediate shaft portion 5 and the crankshaft portion 6. The sliding shaft portion 13 is supported by a sliding bearing 13a while bearing external tension, allowing the sliding shaft portion 13 to reciprocate along the axial direction of the sliding bearing 13a. The tension 19 is generated by load applying portions 130 and 230, which can freely adjust the load on the training device 100.

[0015] The connecting and fixing portion 23 connects the driving shaft portion 4, the intermediate shaft portion 5, the crankshaft portion 6 and the sliding bearing 13a respectively. The connecting and fixing portion 23 also includes a first fixing piece 23a and a second fixing piece 23b. Figure 1 As shown, the first fixing piece 23a is a straight plate, and the second fixing piece 23b is an L-shaped plate.

[0016] The first fixed plate 23a is provided with a main shaft bearing (not shown) and an intermediate bearing 5a. The main shaft bearing is used to freely support the driving shaft portion 4, and the intermediate bearing 5a is used to freely support the intermediate shaft portion 5. The main shaft bearing and the intermediate bearing 5a support the driving shaft portion 4 and the intermediate shaft portion 5 so that they are parallel to each other. The second fixed plate 23b is an L-shaped plate with its short side and long side being orthogonal to each other. Sliding bearings 13a are provided on the short side of the L-shape, and crankshaft bearings 6a are provided on the long side of the L-shape. The sliding shaft portion 13 is supported by the sliding bearings 13a and can reciprocate in the axial direction. The crankshaft bearings 6a rotatably support the crankshaft portion 6. The ends of the connecting member 30, which will be described later, are connected to the sliding shaft portion 13 and the crankshaft portion 6, respectively, and are used to convert the rotational motion of the crankshaft portion 6 into the reciprocating motion of the sliding shaft portion 13.

[0017] The first fixing piece 23a is connected to the second fixing piece 23b so that the long side of the L-shape of the first fixing piece 23a and the second fixing piece 23b are perpendicular to each other. As a result, the driving shaft 4, the intermediate shaft 5, and the sliding shaft 13 are arranged parallel to each other in the connecting and fixing portion 23, while the crankshaft 6 is arranged in the connecting and fixing portion 23 so as to be perpendicular to the driving shaft 4, the intermediate shaft 5, and the sliding shaft 13.

[0018] The driving shaft portion 4 is provided with a driving shaft sprocket 4c, and the intermediate shaft portion 5 is provided with an intermediate shaft sprocket 5c. The sprocket is used to transmit the rotation of the shaft to the transmission chain 10, or to transmit the rotation of the transmission chain 10 to the shaft. The transmission chain 10 is a mechanical element for power transmission, which is used to convert the rotation of the shaft into tension. The driving shaft sprocket 4c and the intermediate shaft sprocket 5c are suspended and connected together by the transmission chain 10, and the transmission chain 10 constitutes the first rotation transmission part 1K. Therefore, as the driving shaft portion 4 rotates, the transmission chain 10 causes the driving shaft sprocket 4c and the intermediate shaft sprocket 5c to rotate, thereby driving the intermediate shaft portion 5 and the driving shaft portion 4 to rotate synchronously.

[0019] The second transmission unit 1M includes an intermediate shaft bevel gear 5d and a crankshaft bevel gear 6c. The intermediate shaft bevel gear 5d and the crankshaft bevel gear 6c transmit rotation to each other through meshing tooth surfaces. The intermediate shaft bevel gear 5d is mounted within the intermediate shaft portion 5, and the crankshaft bevel gear 6c is mounted within the crankshaft portion 6. Bevel gears are gears mounted on two intersecting rotating shafts, each with an umbrella-shaped tooth surface, and are used to transmit rotational motion between the two intersecting shafts. The second rotation transmission unit 1M, consisting of the intermediate shaft bevel gear 5d and the crankshaft bevel gear 6c, is used to connect the intermediate shaft portion 5 and the crankshaft portion 6, which is arranged orthogonally thereto, and transmit rotation between the two.

[0020] The first fixing piece 23a is fixed to the slider 20c of the linear motion guide 20. The linear motion guide 20, as one of the mechanical components, includes guide rails 20a and 20b, a slider 20c, and a guide rail support base 20d. The slider 20c slides along the guide rails 20a and 20b, achieving smooth, low-friction linear motion. The slider 20c is equipped with a connecting and fixing portion 23, which connects the driving shaft 4, the intermediate shaft 5, the crankshaft 6, and the sliding shaft 13, and allows the connecting and fixing portion 23 to move in a direction parallel to the direction in which the first rotation transmission unit 1K extends.

[0021] The linear motion guide 20 includes a first guide rail 20a, a second guide rail 20b, a slider 20c, and a guide rail support base 20d. The guide rail support base 20d is fixed inside the housing 22. The first and second guide rails 20a, 20b are straight bars and are fixed to the guide rail support base 20d, maintaining parallel alignment between the first and second guide rails 20a, 20b. The slider 20c is mounted on the first and second guide rails 20a, 20b and is capable of linear motion along the first and second guide rails 20a, 20b.

[0022] When the user horizontally moves the grip portion 11 serving as the input portion, the connecting and fixing portion 23 moves horizontally smoothly and with low friction along the extension direction of the first guide rail 20a, the second guide rail 20b, and the slider 20c. The intermediate shaft portion 5 and the crankshaft portion 6 move synchronously with the horizontal movement of the connecting and fixing portion 23. The first guide rail 20a and the second guide rail 20b are installed in the housing portion 22 so that the extension direction of the first guide rail 20a and the second guide rail 20b is parallel to the extension direction of the crankshaft portion 6. Therefore, the horizontal movement direction of the crankshaft portion 6 and the horizontal movement direction of the active shaft portion 4 are both parallel to the extension direction of the crankshaft portion 6. The parallelism of the two directions mentioned in this article refers to a parallel relationship in three-dimensional space, that is, the two directions are located in the same plane and do not intersect with each other.

[0023] A vertically extending elongated hole 33 is formed in the upper surface 22a of the housing 22. This elongated hole 33 extends in the direction in which the slider 20c moves linearly. The sliding shaft 13 is inserted into the elongated hole 33. When the user moves the grip 11 horizontally, the sliding shaft 13 moves horizontally within the elongated hole 33.

[0024] The two ends of the connecting member 30 are connected to the sliding shaft portion 13 and the crank portion 6 respectively, and are used to convert the rotational motion of the crank portion 6 into the reciprocating motion of the sliding shaft portion 13 in the vertical direction. Figure 4 As shown. The connecting member 30 includes a first connecting rod 30a and a second connecting rod 30b. The connecting rod is usually in the shape of a slender rod with joints at both ends for transmitting force and motion. One end of the first connecting rod 30a is fixedly connected to the crankshaft part 6, and the other end is connected to one end of the second connecting rod 30b to form a first joint 30c. The first joint 30c is composed of the first connecting rod 30a and the second connecting rod 30b, and is a movable connecting part. The second connecting rod 30b can rotate 360 ​​degrees around the first joint 30c with the first connecting rod 30a as the center. The other end of the second connecting rod 30b is connected to the first end 13b of the sliding shaft part 13 to form a second joint 30d. The second joint 30d is composed of the second connecting rod 30b and the sliding shaft part 13, and is also a movable connecting part. The second connecting rod 30b can rotate 360 ​​degrees around the second joint 30d with the sliding shaft part 13 as the center.

[0025] The tension member 25 is connected to the sliding shaft 13 and is used to transmit the tension 19 and change the front-back direction according to the axial and linear movement of the sliding shaft 13. The tension member 25 is a flexible rope with low elasticity. Its material and thickness are determined according to the load conditions and durability requirements. The main material of the tension member 25 is metal, and a metal chain can also be used. In the first training device 100a for both arms (see Figures 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 first training device 100b for single arm (see Figure 12 and Figure 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 devices 1A, and the other end is connected to the second end portion 13c of the other sliding shaft portion 13. The tension member 25 extends from the load applying portion 130 and is sequentially inserted into and wound around the first guide roller 26, the second guide roller 27, and the direction change guide wheel 170.

[0026] The first guide roller 26 and the second guide roller 27 are disc-shaped, and the outer circumferences thereof are provided with annular grooves 26a and 27a extending in the circumferential direction, respectively (see Figures 1 to 4 The tension member 25 is matched with the annular grooves 26a and 27a and fixed therein. Since the tension member 25 is fixed in the annular grooves 26a and 27a, its movement in the front-back direction (i.e. Figure 1 The left and right directions of the paper are restricted.

[0027] The tension member 25 is fixedly arranged between the first guide roller 26 and the second guide roller 27, and its movement in the left-right direction (i.e. Figure 2 The first guide roller 26 and the second guide roller 27 are restricted due to the friction between them and the tension member 25, and thus rotate as the tension member 25 moves forward and backward.

[0028] The direction conversion guide wheel 170 is used to convert the downward load from the counterweight 131 (see the figure below) into an upward load applied to the tension member 25. The direction conversion guide wheel 170 is disc-shaped, and its outer circumference is provided with an annular groove 170a extending in the circumferential direction (see Figure 1 and Figure 2 The tension member 25 is embedded in the annular groove 170a and fixed in the groove, thereby achieving a change in the load direction.

[0029] The first guide roller 26 and the second guide roller 27 are mounted near the top of the guide post 140 via a mounting bracket 141. The load transfer device 1A is rotatable about the guide post 140. As the load transfer device 1A rotates, the orientation of the mounting bracket 141 changes to match the direction of the load transfer device 1A.

[0030] <Operation Instructions for Load Transfer Device 1A> See also Figure 5 and Figure 6 , the movement process of the load transfer device 1A is described below. Figure 51A is a front view for explaining the internal movement of the load transfer device 1A. Figure 6 Schematic diagram for explaining the movement state of the connecting member 30 in the load transfer device 1A.

[0031] First, see Figure 1 and Figure 5 The following describes the internal movement of the driving shaft 4 in the load transfer device 1A when it moves horizontally. Figure 5 In FIG, the housing portion 22 is indicated by a dotted line (imaginary line). Figure 1 The status shown is the same as Figure 5 During the transition between the illustrated states, the user manipulates the grip portion 11 to cause it to move horizontally away from the guide post 140 in the housing portion 22. This movement is transmitted via the connecting and fixing portion 23, converting it into horizontal movement of the sliding shaft portion 13. The sliding shaft portion 13 slides horizontally within the elongated hole 33 provided 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 is stretched as this end portion moves horizontally, and the angle of its extension direction changes from the portion secured by the annular groove 26a of the first guide roller 26 and the annular groove 27a of the second guide roller 27.

[0032] See also Figure 4 and Figure 6 The following describes the operation process of the internal structure when the driving shaft 4 in the load transmission device 1A rotates. Figure 4 The status shown is the same as Figure 6 During the transition between the illustrated states, the user applies a rotational force to the grip portion 11. This rotational motion is sequentially transmitted via the first rotation transmission portion 1K and the second rotation transmission portion 1M, driving the crankshaft portion 6 to rotate. The rotation of the crankshaft portion 6 is further converted into vertical reciprocating motion of the sliding shaft portion 13 via the connecting member 30, thereby driving the extension and retraction of the tension member 25. This structural coordination not only achieves the linear tension generated by the horizontal movement of the grip portion 11, but also combines it with the vertical movement of the sliding shaft portion 13 caused by the rotational motion. This allows the user to apply appropriate torsional loads to their arms, shoulders, and other areas during training, thereby enhancing the overall training effect on all muscle groups.

[0033] <Overview of the Load Transmission Device 1B for a Training Apparatus in the Second Embodiment> See also Figure 7 The following describes a load transmission device 1B for a training apparatus according to a second embodiment (hereinafter referred to as load transmission device 1B). Load transmission device 1B is a modification of load transmission device 1A and is used to connect to a second training apparatus 200 described below and receive force from the user's foot.

[0034] Now combined Figure 7 and Figure 15 , a load transmission device 1B for a training apparatus according to a second embodiment will be described. Figure 7 It is a front view of the internal structure of the load transfer device 1B. Figure 15 This is an enlarged view of the footrest 271 of the second training device 201. Figure 7 , the housing 22 is shown in dashed lines. The aforementioned load transfer device 1A is primarily intended for hand-held use by the user and is suitable for upper limb training. Furthermore, the present invention also provides a load transfer device 1B for lower limb training. The load transfer device 1B is provided with a footrest 271, upon which the user places their foot for lower limb training. Therefore, the structure of the load transfer device for training equipment disclosed in the present invention can be applied to both upper and lower limb training.

[0035] In the load transfer device 1B, the footrest 271, which serves as a structure for inputting user force, is connected to the top end 276c of the active shaft 276. Compared to the load transfer device 1A, the active shaft 276 of the load transfer device 1B is structurally different. The active shaft 276 has a protruding top end 276c located on the same side as the sliding shaft 13, and the footrest 271 is connected to the top end 276c. In the following description of the load transfer device 1B, the above description will be omitted. Figure 7 and Figure 15 Components in common with the load transmission device 1A are denoted by codes, and only the components that differ from the load transmission device 1A are described.

[0036] The load transfer device 1B is different from the load transfer device 1A (see Figure 1 ) is rotated 90 degrees as a whole, so that the axial direction of the crankshaft portion 6 is almost vertical and is used in an upright state. Figure 15 ) is provided with an active shaft portion 276.

[0037] The user can place either foot on the footrest 271. The footrest 271 is designed to be slightly larger than the user's foot. The footrest 271 includes a third rotation axis 273, a side plate 274a, a side plate 274b, and a connecting plate 275.

[0038] The center of the connecting plate 275 is perpendicularly connected to the driving shaft 276. The connecting plate 275 is provided with flat side panels 274a and 274b at both ends thereof, extending perpendicularly thereto. A third rotating shaft 273 is rotatably disposed between the side panels 274a and 274b and is mounted on the footrest 271.

[0039] The third rotating shaft 273 is connected to the bearing 272 (see FIG. Figure 15) realizes slewing support. Thus, the footrest 271 can slew around the third rotation axis 273. In addition, the footrest 271 can also slew around the driving shaft 276.

[0040] The footrest 271 in the load transfer device 1B can rotate around two different axes that are perpendicular to each other. Figure 7 and Figure 15 The structural design shown allows the user to freely adjust the placement of the foot as needed, including the direction and bending angle of the foot, so that the sole of the foot can be placed on the footrest 271 without pressure, and the foot can be used to push the footrest 271 at the desired angle. As a result, the user can adjust the posture (angle and strength) according to their own needs, and use the second training device 201 to perform flexion and extension load training on the foot placed on the footrest 271, while changing the direction of the toes from upward to sideways, thereby applying load to the overall torsional movement of the foot. Therefore, when using the second training device 201 for lower limb training, the user can simultaneously perform loaded flexion and extension exercises and loaded torsional exercises, thereby performing comprehensive training of multiple muscles in the foot with complex movements under appropriately adjusted loads.

[0041] <Description of Operation of the Load Transmission Device 1B for a Training Apparatus According to the Second Embodiment> The user can use the load transfer device 1B to perform a variety of foot exercises. Figure 7 and Figure 15 The following further illustrates the operation of the load transfer device 1B using an example of foot exercise. As an example of foot exercise, the operation of the load transfer device 1B in relation to the user's knee flexion and extension exercise will be described.

[0042] As the user's initial posture, the user bends the knee joint and places the instep of the foot upright on the footrest 271 (see Figure 16 ). In this initial posture, the footrest 271 keeps the user's legs bent and placed close to the side of the body.

[0043] The user then gradually extends the knee joint from a flexed position (see Figure 17 ) and tilt the knee inward to rotate the foot (see Figure 18 During the process of extending the knee joint, the user pushes the foot obliquely upward, thereby driving the footrest 271 upward, causing the footrest 271 to move horizontally upward (see Figure 17 When the knee reaches maximum extension, the user tilts the knee inward as far as possible (see Figure 18 ).

[0044] At this time, the state of the footrest 271 is: the load transfer device 1B stretches the user's legs and places the user's legs on the side away from the body, and at the same time, the footrest 271 rotates to the maximum extent around the axis of the active shaft 276 (see Figure 18 In the load transmission device 1B, the upward parallel movement of the footrest portion 271 causes the sliding shaft portion 13 to move upward accordingly, thereby increasing the load provided by the load applying portion 230 .

[0045] In the load transfer device 1B, by rotating the footrest 271, the rotation of the active shaft 276 is transmitted to the sliding shaft 13 via the first rotation transmission unit 1K, the second rotation transmission unit 1M, and the connecting member 30. The sliding shaft 13 is displaced relative to the housing 22, and this displacement causes the counterweight of the load-applying unit 230 to move up and down. In the load transfer device 1B, the rotation of the footrest 271 about the active shaft 276 causes the sliding shaft 13 to move, thereby causing a change in the load on the load-applying unit 230. The user can rotate the footrest 271 while resisting the rebound force generated by the load-applying unit 230. Furthermore, regardless of the position of the footrest 271 during translation, the load change caused by the load-applying unit 230 can be felt during rotation.

[0046] <Overview of the First Training Device 100 and the Second Training Device 201> See also Figures 8 to 13 , explaining the first training device 100. The first training device 100 is a device for upper limb exercise, which is equipped with a load transfer device 1A that can receive the force from the user's hands. It is worth noting that the first training device 100 is divided into two forms: one is the first training device 100a for both arms (see Figures 8 to 11 ), the other is a first training device 100b for single arm (see Figure 12 and Figure 13 ).

[0047] See also Figures 14 to 18 The second training apparatus 201 is described. The second training apparatus 201 is a device that is equipped with a load transmission device 1A for receiving force applied by the hands and a load transmission device 1B for receiving force applied by the feet, and can train the movements of the upper and lower limbs simultaneously.

[0048] The load transmission device 1A is equipped with a device for transmitting the load (such as weight, etc.) of the first training apparatus 100 and the second training apparatus 201 to the user. The load transmission device 1A includes a handle held by the user, namely a grip portion 11 (see Figure 1 etc.), mainly used for upper limb training, such as arms, shoulders and other parts of the training. The load transfer device 1B is equipped with a user's footrest 271 (see Figure 7), used for lower limb training, such as legs and other parts of the body.

[0049] The gripping portion 11 held by the user and the footrest portion 271 of the user constitute the input portion for the user to apply force. For example, the user places the first training device 100 (see FIG. 1 ) in the initial state with the backs of the arms facing outward. Figure 8 、 Figure 9 ), with both hands holding the two grips 11. Then, while holding the grips 11 with both hands, the user simultaneously moves both arms downward, thereby applying a downward pulling force to the grips 11. In addition, the user also places both arms with the backs of the hands facing outwards in the initial state of the first training device 100 (see Figure 8 、 Figure 9 ), with each hand grasping a grip 11. Subsequently, while grasping, the user straightens both arms and simultaneously rotates them outward, performing a chest-opening maneuver. This inputs rotational force into the load transfer device 1A through the grips 11. The grip 11 is an annular structure, through which the user places their hands to grasp it.

[0050] In addition, the user sits on the second training apparatus 201 in the initial state (see Figures 14 to 18 ) on the right side of the seat 211 (the front position in the figure). Then, the user raises his right arm and grips the grip portion 11 with his right hand. Then, while keeping his right hand gripping the grip portion 11, the user swings his right arm forward, thereby applying a downward force to the grip portion 11 as the input portion. In addition, the user sits on the second training apparatus 201 (see Figures 14 to 18 ) on the right side of the seat 211 (front in the figure), place your left foot on the input portion of the load transfer device 1B, i.e., the footrest 271, and keep your knee bent (see Figure 16 ). Then, the user straightens the left leg and applies a pushing force to the footrest 271 (see Figure 17 ).

[0051] <First training device 100> The structure of the first training device 100 is as follows Figures 8 to 13 The first training device 100 is a training device equipped with a load transfer device 1A. Figures 8 to 13 The first training apparatus 100 shown is divided into two types: one is a first training apparatus 100a for both arms (see Figures 8 to 11 ), the other is a first training device 100b for single arm (see Figure 12 and Figure 13 ).

[0052] like Figures 8 to 11The first training device 100a for both arms is a device that allows users to hold the handles (grips 11) of the left and right load transfer devices 1A with both hands and exercise with both upper limbs at the same height, aiming to promote functional coordination between the left and right upper limbs and improve the interrelationship of functions. Figure 12 and Figure 13 The first training apparatus 100b for single arm shown is similar to the first training apparatus 100a for double arms in that both handles (grips 11) of the left and right load transmission devices 1A can be grasped by both hands. However, the first training apparatus 100b for single arm is mainly a device for exercising one of the left and right upper limbs by grasping one of the grips 11 with one hand. The first training apparatus 100 includes the first training apparatus 100a for double arms (see Figures 8 to 11 ) and the first single-arm training device 100b (see Figures 12 to 13 ), the same symbols are used to represent the common structural parts.

[0053] <Description of the Structure of the First Training Device 100> The first training apparatus 100 is equipped with a load transmission device 1A and can be used for upper limb training of a user. The structure of the first training apparatus 100 will be described by taking the case where the load transmission device 1A is mounted on the first training apparatus 100 as an example.

[0054] The first training device 100 is as follows Figures 8 to 13 As shown, the first training apparatus 100 comprises the following components: a seat 110, a frame 120 supporting the seat 110, a load-applying unit 130 mounted on the frame 120 and capable of adjusting the load, and two guide posts 140 fixed to the frame 120 and spaced appropriately apart in the vertical direction, with the seat 110 positioned in the middle. Furthermore, the first training apparatus 100 includes two load transfer devices 1A, one end of which is vertically movable and horizontally rotatable. The lower end of each load transfer device 1A is connected to the grip 11, and one end is connected to the load-applying unit 130. The other end is looped back through a direction-changing guide wheel 170 mounted on the frame 120 and connected to the other end of the guide post 140, outside the mating position. The load transfer device 1A is equipped with a tension member 25. Within the load transfer device 1A, the load from the load-applying unit 130 is transmitted via the tension member 25, causing the rotation of the grip 11 axis to be affected by changes in the load.

[0055] The seat portion 110 is composed of a front-facing seat 111 and seat posts 112 vertically disposed below the seat 111 , for a user to sit on when using the first training device 100 .

[0056] The frame 120 is used to securely mount the first training device 100 on the ground and serves as the overall framework of the first training device 100, securing components such as the seat 110, the load-applying portion 130, and the two guide posts 140. A vertical through-hole is provided in the lower center of the frame 120, through which the seat posts 112 pass, thereby supporting the seat 110. The frame 120 is also equipped with a thigh support 121, which prevents the user's thighs from lifting when sitting on the seat 111. This thigh support 121 helps the user maintain a proper back arch during exercise.

[0057] The load-giving part 130 is provided on the frame 120 and can adjust the size of the load in the first training device 100. The load-giving part 130 includes a counterweight 131 composed of a plurality of plate-like weight elements made of metal, a counterweight guide pillar 132 that supports the counterweight 131 to move up and down in the frame 120, and a clamp (not shown) for adjusting the number of stacked counterweights 131, so that multiple counterweights 131 can be connected or separated from each other as needed. The change in the number of layers of the counterweight 131 will cause the load (load) of the load-giving part 130 to be adjusted accordingly. The counterweight guide pillar 132 is cylindrical and is provided behind the seat 110 and is vertically fixed to designated positions spaced apart on the left and right sides of the frame 120. Each plate-like element of the counterweight 131 is inserted into the counterweight guide pillar 132 through its through hole and stacked, and can be supported to move freely up and down in the frame 120.

[0058] To connect the load transmission device 1A to the first training apparatus 100, the housing 22 is provided with a connecting portion 7. The connecting portion 7 of the load transmission device 1A is a cylindrical connecting tube 8, through which the guide post 140 is inserted. The connecting tube 8 is made of a low-friction material such as fluororesin to reduce sliding resistance. This allows the load transmission device 1A to smoothly move up and down and rotate within the first training apparatus 100.

[0059] The load transfer device 1A is inserted into the connecting portion 7 and engaged with the guide pillar 140, so that it can move freely up and down and rotate horizontally. The gripping portion 11 connected to the active shaft portion 4 of the two load transfer devices 1A is a ring-shaped handle that the user grasps and applies force. Each gripping portion 11 rotates horizontally around the active shaft portion 4 of the load transfer device 1A. In the initial state of the first training device 100 (see Figure 8 and Figure 9), when the user grasps each grip 11, the back of the hand faces the left or right outer side of the first training apparatus 100, and each grip 11 is positioned above the position of the arm when sitting on the seat 111. The user then grasps the grip 11 and presses the arm downward, causing the grip 11 to move the load transfer device 1A downward. At this time, the user's arms move outward from the midline, completing the chest-opening movement. Figure 10 and Figure 11 The state in which the user uses the first training device 100a for both arms in an open-chest posture is shown.

[0060] In the first training device 100, Figures 8 to 11 The first training device 100a for both arms is shown, which exercises both arms simultaneously. Figure 12 and Figure 13 The first single-arm training apparatus 100b for exercising a single arm is shown. In the first double-arm training apparatus 100a, two ropes or wires of the same length are used as tension members 25. Each end of the two tension members 25 is connected to the counterweight 131, and the other end is connected to the load transfer device 1A. The two tension members 25 are respectively passed over the direction conversion guide wheel 170, and the direction conversion guide wheel 170 converts the downward load applied to the tension members 25 by the counterweight 131 into an upward load. The two tension members 25 are connected to the counterweight 131 at two tension member connection parts 181 (see Figure 9 、 Figure 11 wait).

[0061] Figure 12 and Figure 13 The tension member 25 of the first single-arm training device 100b shown is a rope or wire, and the two ends of the tension member 25 are connected to the two load transfer devices 1A. A movable pulley 134 is provided in the box portion 133 at the upper end of the counterweight 131, and the tension member 25 passes around the movable pulley 134. The tension member 25 is introduced into the box portion 133 through two holes 136 provided above the box portion 133 ( Figure 12 Only one hole 136 is shown. When one of the two load transfer devices 1A is pulled, the tension member 25, using the other load transfer device 1A as a fulcrum, together with the movable pulley 134, lifts the counterweight 131 upward. The pulley 134 is rotatably fixed to a support platform 135 inside the box portion 133.

[0062] from Figure 8 and Figure 9Starting from the initial state, the user opens the chest, causing the guide post 140 of the load transmission device 1A to rotate horizontally outward, and applying a load generated by the tension of the tension member 25. The tension of the tension member 25 is generated by the load-applying section 130 of the first training apparatus 100, whose load magnitude is adjustable. It should be noted that in the second training apparatus 201 described later, similar to the first training apparatus 100, the tension of the tension member 280 is generated by the load-applying section 230 of the second training apparatus 201, whose load magnitude is adjustable.

[0063] This corresponds to Figure 10 and Figure 11 In the illustrated state, the load transmission device 1A is subjected to a load that tends to close inward, causing it to face forward. The user can resist this load by rotating the load transmission device 1A to a predetermined angle. The load tending to close the load transmission device 1A inward is proportional to the load on the load-applying portion 130 and is roughly inversely proportional to the vertical position of the load transmission device 1A.

[0064] In addition, Figure 12 and Figure 13 In the illustrated first single-arm training device 100b, by adjusting the load applying portion 130, each user can receive a different load during the lifting and lowering movement of the load transmission device 1A, thereby achieving personalized training.

[0065] <Description of How to Use the First Training Device 100> The following describes a typical usage of the first training device 100. First, set an appropriate load and adjust the weight of the counterweight 131 based on factors such as the user's muscle strength and training objectives. The user sits facing forward on the seat 111, adjusts the seat height so that the soles of both feet can firmly contact the ground, and secures the seat. Next, adjust the height of the thigh pressing portion 121 so that it properly contacts the user's upper thigh and secure it in place to ensure stability and safety during training.

[0066] Next, the user stands up and, according to the initial state of the load transfer device 1A (see Figure 8 and Figure 9 ), with the backs of their hands facing the left and right sides of the first training device 100, respectively, gripping the grips 11. Subsequently, while gripping the grips 11, the user stretches both hands upward, then pulls the grips 11 downward, and finally returns to the seat 111, sitting facing forward.

[0067] Next, the user resists the rotational thrust proportional to the load applied by the load-applying unit 130 and twists both upper arms outward, rotating each grip 11 horizontally relative to the load transmission device 1A. This positions the backs of the hands held by the grips 11 toward the front and outward of the first training apparatus 100. This "avoidance" posture relaxes the flexor and extensor muscles simultaneously, resulting in a relaxed shoulder and arm state. Furthermore, the load applied by the load-applying unit 130 pushes the grips 11 upward, appropriately stretching muscles in areas such as the shoulder girdle.

[0068] Then, due to the "moderate stretching" of the muscles near the shoulders, the user will trigger a "reflex action" to counteract the load applied by the load-applying part 130, and will flex both arms to "shorten" the muscles, thereby pulling down the gripping part 11. At this time, the user simultaneously cooperates with the "relaxation" and "stretching" movements of the external rotation of the upper arms, while pulling down the gripping part 11 with both hands. Through the external rotation of the upper arms, each gripping part 11 further rotates horizontally on the load transfer device 1A, thereby driving the counterweight 131 to rise, reducing the load in the initial pulling-down action. In this way, when the arms are flexed to pull down the gripping part 11 to "shorten" the muscles, the "relaxation-stretching-shortening" process of the muscle group can be achieved in conjunction with the "relaxation" and "stretching" movements of the external rotation of the upper arms, ensuring the coordination and continuity of the movements.

[0069] Furthermore, by pulling both arms downward while simultaneously rotating and extending the outer sides of the upper arms, the user can apply loads appropriately adjusted by the load-applying unit 130 in the vertical, rotational, and horizontal directions. This allows the appropriately "stretched" muscle groups to perform coordinated movements, coordinated with the timing of "relaxation-stretching-shortening." Furthermore, during the process of extending the outer sides of the upper arms, the horizontal movement of the grip 11 (i.e., the active shaft 4) does not significantly change the load applied by the load-applying unit 130 (counterweight 131).

[0070] When the user flexes their arms and pulls down the grip 11, they resist the driving force causing each load transfer device 1A to rotate forward, gradually abducting their arms and causing each load transfer device 1A to rotate outward. Because the force causing the load transfer device 1A to rotate forward is roughly inversely proportional to its position (height), the resistance to abduction gradually decreases as the arms flex and the grip 11 is pulled down. This allows the user to continuously exert appropriate muscle force to complete the abduction movement while flexing their arms and pulling down the grip 11, and to smoothly abduct their arms while pulling down the grip 11, avoiding the phenomenon of co-contraction of the agonist and antagonist muscles.

[0071] Active muscles are those that generate the primary force to perform a movement. Antagonist muscles are those that work in the opposite direction of the active muscle, providing a degree of resistance or counteraction to a specific movement. Antagonist muscles control the activity of the active muscle and help maintain balance and stability. For example, in elbow flexion, the biceps brachii is the active muscle, while the triceps brachii, located on the opposite side, is the antagonist. Conversely, in elbow extension, the triceps brachii is the active muscle, while the biceps brachii is the antagonist. Muscles are extended when relaxed, and force is generated when they contract (shorten). Elbow flexion is achieved through contraction of the biceps brachii and extension of the antagonist muscle, the triceps brachii. When the active and antagonist muscles contract simultaneously, this is called co-contraction. Co-contraction can hinder the normal completion of the movement, resulting in movement obstruction. This phenomenon is common when muscles are overly tense or unable to relax effectively. Co-contraction affects the fluidity of movement, especially in sports that require rapid release of force, such as throwing and batting. In severe cases, it can impair athletic performance.

[0072] Next, the user lowers each grip 11 to approximately shoulder height. Based on the thrust generated by the load-applying unit 130, the user internally rotates the upper arm and simultaneously draws both arms inward, stretching the arms and slowly returning the back of the hand to a sitting position, following the movement of the grip 11. This completes one training cycle. The user can then repeat this action for an appropriate number of cycles, depending on training needs.

[0073] <Second training device 201> See also Figures 14 to 18 , the structure and operation of the second training device 201 are described. Figure 14 is a perspective view of the second training device 201. Figure 15 This is an enlarged view of the foot support portion 271 of the second training device 201. Figures 16 to 18 These are side views of the first to third states of the second training device 201 during use. <Description of the Structure of the Second Training Device 201> like Figure 14 As shown, the second training apparatus 201 includes a seat 210 for the user, a load-applying portion 230 for applying a load, and a vertically extending cylindrical guide post 240. Furthermore, the second training apparatus 201 is provided with a lifting portion 250 that is movable and rotatable along the guide post 240, and a grip portion 260 is provided on the lifting portion 250. The second training apparatus 201 is also equipped with a support portion 271 for the user's feet to rest on, as well as slide rails 222a and 222b. The load-transmitting device 1B is connected at one end to the lifting portion 250 and at the other end to the load-transmitting device 1B. The load-transmitting device 1B transmits the load generated by the load-applying portion 230 to the lifting portion 250 and the load-transmitting device 1B via a tension member 280.

[0074] The lifting unit 250 may be formed by the load transmission device 1A. The gripping unit 260 corresponds to the gripping unit 11 of the load transmission device 1A and serves as an input unit for the user to apply force.

[0075] First, refer to Figure 14 and Figure 15 The structure of the second training device 201 will be described. Figure 14 As shown, the seat portion 210 of the second training apparatus 201 is supported by a frame 220 of the second training apparatus 201. The frame 220 serves as the overall framework of the second training apparatus 201 and is responsible for firmly securing the second training apparatus 201 to the ground. The frame 220 can be made of a sufficiently rigid material, such as steel, aluminum, stainless steel, or resin. It is typically constructed of square tubes or plates, assembled through bolting or welding.

[0076] The seat portion 210 is composed of a seat 211 on which the user sits and seat posts 212 that support the seat 211. The seat posts 212 are fixed to the frame 220 and support the seat 211. Although the seat posts 212 are not shown in the figure, they have through holes that allow the tension member 280 to pass through in the front-to-back direction. The seat 211 is where the user of the second training apparatus 201 sits. Figure 14 As shown, the seat 211 is rectangular in the left-right direction, which is convenient for users to sit on the left and right sides. However, if the user can sit comfortably, the seat 211 can also be square or round.

[0077] like Figure 14 As shown, the seating portion 210 is located behind the seat 211, and a backrest 215 for supporting the user's body may be provided between the load imparting portion 230 and the seat 211. A guide support 240 extending in a vertical direction is provided on the frame 220. Figure 14 As shown, the guide post 240 is located in front of the load-applying portion 230 and behind the seating portion 210. The frame 220 is provided with an upper housing 225 behind the guide post 240 for vertically guiding the tension member 280. The lower end of the guide post 240 is connected to the frame 220, and the upper end is connected to and fixed to the upper housing 225.

[0078] like Figure 14 As shown, a shock absorber 241 is provided on the guide pillar 240. The shock absorber 241 is used to cushion the impact generated when the lifting part 250 contacts the upper shell 225 and the frame 220. The shock absorber 241 can be made of elastic materials such as rubber and sponge to improve the durability of the structure and comfort of use.

[0079] The guide pillar 240 is provided with Figure 14The lifting unit 250 is shown. The lifting unit 250 is mounted on the guide post 240 and is able to move freely up and down along the guide post 240. Although not shown, the lifting unit 250 has a through hole for inserting the guide post 240, so the lifting unit 250 can slide up and down along the guide post 240. In addition, the lifting unit 250 can rotate relative to the guide post 240 around the guide post 240 as the central axis. Therefore, the guide post 240 is required to have a certain degree of rigidity. The guide post 240 can be made of materials such as stainless steel. In the second training device 201, the lifting unit 250 can adopt the load transfer device 1A described in the first embodiment.

[0080] like Figure 14 As shown, the load transmission device 1B of the second training apparatus 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 apparatus 201 and the frame 221 in front thereof and are fixed at both ends.

[0081] The load applying unit 230 is as follows: Figure 14 As shown, it is composed of a pair of cylindrical counterweight guide pillars 232, the upper and lower ends of the counterweight guide pillars 232 are fixed to the frame 220, and a counterweight 233 that can move up and down on the guide pillars 232 is provided. The counterweight 233 is provided with a through hole for inserting the counterweight guide pillars 232. The load imparting portion 230 can change the size of the load imparted by adjusting the number of counterweights 233. The counterweight 233 is a plate-like component, and the step-by-step adjustment of the load is achieved by increasing or decreasing the number of plates. The load imparting portion 230 can also be equipped with a clamp (not shown) that allows the counterweights to be connected or separated from each other freely. In addition, a shock absorber 231 can be provided on the counterweight guide pillar 232 to suppress the counterweight 233 from colliding with the frame 220 with a force exceeding a certain impact force during movement.

[0082] <How to use the second training device 201> See Figures 16 to 18 , the method of using the second training device 201 is explained. Figure 16 As shown, the user sits on the right side of the second training device 201, that is, the right side of the seat 211 ( Figure 16 In other words, the user should place the load transfer device 1B on the left side, the backrest 215 on the right side, and sit on the seat 211. Figure 16 As shown, the user places his left foot on the footrest 271 of the load transfer device 1B, keeping the knee joint bent.

[0083] From this state, the user straightens his left leg and presses the load transfer device 1B. Figure 16As shown, the load transmission device 1B slides along the slide rails 222a and 222b. At this time, the load transmission device 1B is subjected to the load from the rear of the second training device 201 ( Figures 16 to 18 The tension is transmitted to the load transmission device 1B via the tension member 280 connected to the connection portion 279.

[0084] Then, if Figure 16 As shown, the user starts from the state of straightening the legs and slowly slides the load transfer device 1B along the slide rails 222a, 222b to return to the original position. The user repeats this action a certain number of times, that is, repeatedly completes Figure 16 and Figure 17 The posture changes between the shown.

[0085] Furthermore, if Figure 18 As shown, users can also compare Figure 17 The state shown further applies a twist to the waist, pushing the load transfer device 1B further. In this case, the user can stretch the legs while exercising the area around the waist. This posture is possible because the footrest 271 is configured to be freely rotatable relative to the main body of the load transfer device 1B. The user can Figure 16 and Figure 17 Perform leg stretching exercises between Figure 16 and Figure 18 Perform leg stretching exercises in between.

[0086] Again, although not shown, the user can also sit Figures 16 to 18 The opposite side of the seat 211, i.e. the left side of the second training apparatus 201 (at Figures 16 to 18 That is, the user sits on the seat 211 with the load transmission device 1B on the right side and the backrest 215 on the left side, and can therefore also perform training movements with the right leg.

[0087] Therefore, the user can use the second training device 201 to simultaneously exercise their legs and perform bidirectional rotational exercises around their waist. Specifically, the user straightens and spreads their legs, performing a pressing motion by kicking against the load transfer device 1B. This exercise is effective in strengthening the muscles around the user's hip joints, pelvis, thighs, and knees.

[0088] The leg muscle groups can obtain good coordinated movement opportunities in the process of "relaxation-stretching-shortening". Figure 16 In the state shown, it can be considered that the left leg has not yet been subjected to the load of the load applying unit 230, and the muscles are in a "stretched" state. Figure 16The state shown is also a state in which only the feet are placed on the footrest portion 271. Since the entire body is in a relaxed state, it can also be considered a "relaxed" state.

[0089] Then, the user applies force to the foot, pressing the load transmitting device 1B to which the load is applied by the load applying unit 230. Figures 16 and 17 or Figure 18 In the process shown in FIG, by applying the load of the load imparting unit 230 to the user's left leg, the muscles of the user's left leg enter a "shortened" state. Figure 17 or Figure 18 In the state shown, by rotating the pedal portion 271 relative to the load transfer device 1B, the connecting portion 279 is pulled into the load transfer device 1B by the internal rotating device, thereby increasing the load applied by the load applying portion 230 to the leg. Figure 17 or Figure 18 As shown, while the load transmission device 1B is rotating, the user's legs can be placed in a "relaxed" state. Furthermore, since the load transmission device 1B does not apply an excessive load to the load applying portion 230 when the footrest portion 271 translates, the user can focus on the load generated by the rotation of the footrest portion 271.

[0090] And, in Figure 17 or Figure 18 The status shown is transferred to Figure 16 During the process of the state shown, by restoring the legs to Figure 16 The state shown above allows the muscles to enter a "stretched" state. Figure 16 The status shown is transferred to Figure 17 or Figure 18 The load transfer device 1B is moved and repeatedly restored from this state to Figure 16 The movement cycle of the state shown can form a rhythm of "relaxation-stretching-shortening", thereby achieving good linkage of muscle movements. In addition, regarding the movement of the legs, Figure 16 The status shown is set as the initial status, or Figure 17 or Figure 18 The state shown is set as the initial state to perform a cycle of movements. However, since the ideal state is to start the movement from the "relaxed" state, it is more ideal to start the movement from the "relaxed" state with the help of others. Figure 17 or Figure 18 The state shown starts the movement.

[0091] The second training device 201 adopts a single-leg training structure instead of training both legs at the same time, so there is no need to set up two load transfer devices 1B to train both legs at the same time. Therefore, compared with the double-leg training mode, its structure is more compact and can reduce the occupied space area. Furthermore, compared with the design that requires two load transfer devices 1B for each leg, the second training device 201 can effectively reduce the overall width, thereby reducing the required installation space area. Figure 16 and Figure 17 During the exercise shown, the user may choose to face the load transfer device 1B toward himself and sit on the seat 210 with his back against the backrest 215 to perform the exercise.

[0092] <Summary of the First Training Device 100 and the Second Training Device 201> The first training device 100 and the second training device 201 are training devices suitable for performing initial motion load training (registered trademark), thereby effectively exercising muscles such as shoulders, arms, back and legs. Here, initial motion load training is defined as: "Utilizing the changes in the body caused by the position of the reflex and the accompanying changes in the position of the center of gravity, etc., to prompt the agonist muscles to complete a series of movements of 'relaxation-stretching-shortening', and to prevent the antagonist muscles and the muscle groups involved in the antagonism from contracting simultaneously." Initial motion load training is completely different from traditional terminal motion load training. Terminal motion load training refers to applying a continuous load to the muscles until the end of the movement, accompanied by a state of muscle tension (hardening) to cause hypertrophy. Initial motion load training, on the other hand, requires mastering the overall movement perception such as the load application point, load release point, angle, rhythm and continuity of muscle output to implement. Traditional load training has the following problems: due to factors such as body balance or local hardening, it is difficult to achieve appropriate movements or postures. However, the initial load training achieved by the first training device 100 and the second training device 201 can easily guide the user into an ideal training process accompanied by a series of movements or postures.

[0093] Initial load training using the first training device 100 and the second training device 201 achieves "force transmission from the central region (trunk) to the distal regions of the body," allowing muscles to relax and remain in a state even when they naturally contract and are not actively stretched. This training applies appropriate loads to the muscle spindles and tendon organs, which are sensory receptors, allowing the muscles to begin with moderate stretching or exert force when passively stretching the muscles to induce muscle shortening. By gradually reducing the load instantaneously and continuously, this prevents simultaneous contraction of other muscles, known as cardiac muscles, and allows the muscles to reach a state of activity similar to that of the myocardium, where simultaneous contraction does not occur. This promotes and develops neuromuscular control. The muscle stretch reflex is a spinal reflex that occurs when a skeletal muscle is passively stretched and contracts. This contraction is triggered by the tension generated by the stretching muscle, which is sensed by the muscle spindles within the muscle. The muscle stretch reflex serves a defensive function, as overstretched muscles contract to avoid injury. The knee tendon reflex is a typical example of a muscle stretch reflex. The cardiac muscle is the only muscle in the human body that does not contract simultaneously. Therefore, initial load training effectively avoids the co-contraction of muscles other than the myocardium by promoting a series of "relaxation-stretching-shortening" movements, thereby achieving effective training.

[0094] Initial load training using the first training device 100 and the second training device 201 is a training method that uses the load applied by the training device to trigger muscle reflexes, allowing the muscles that should be working to function well, thereby improving the performance of muscles and nerves. The load acts as a catalyst to promote timely relaxation, good contraction and shortening of muscles. Through this training, a series of "relaxation-stretching-shortening" movements can be promoted, thereby preventing simultaneous muscle contraction, improving the function and coordination of nerves and muscles, reducing the burden on the body such as muscle pain or fatigue, and without accompanying muscle hardening, thereby obtaining soft and elastic muscles. In addition, by promoting the forced increase and decrease of heart rate or blood pressure, aerobic metabolism is promoted, which can effectively prevent lifestyle diseases such as diabetes and hypertension, promote the recovery of ligament injuries and fractures, and relieve pressure on nerves, muscles and joints, eliminate waste, and create a state that is beneficial to the body.

[0095] <Configuration of the Load Transmission Device 1C for a Training Apparatus in the Third Embodiment> See also Figure 19 , a load transmission device 1C for a training apparatus in a third embodiment (hereinafter referred to as load transmission device 1C) will be described. Figure 19This is a front view illustrating the internal structure of a load transmission device 1C in the third embodiment. The load transmission device 1C is a modified example of the load transmission device 1A and is mounted on the first training apparatus 100 to receive force applied by the user's hand. The following description of the load transmission device 1C will only describe the differences from the load transmission device 1A. For components identical to the load transmission device 1A, Figure 19 The same reference numerals as those of the load transfer device 1A are used and their description is omitted.

[0096] Compared to load transfer device 1A, load transfer device 1C additionally incorporates a feed roller 28. The first guide roller 26, the second guide roller 27, and the feed roller 28 are all mounted near the top end of the guide support 140 via a mounting bracket 141. A tension member 25 extends from the load-applying portion 130, sequentially passing through the first guide roller 26, the second guide roller 27, the feed roller 28, and the direction-changing guide wheel 170, before returning. The tension member 25 is connected to the sliding shaft 13, transmitting the tension 19 and extending tangentially along the outer circumference of the cylindrical feed roller 28. Its extension direction changes in response to the axial and linear movement of the sliding shaft 13. The tension member 25, connected to the second end 13c of the sliding shaft 13, extends as the second end 13c moves horizontally, changing the angle of extension applied by the feed roller 28.

[0097] The feed roller 28 is in the shape of a disk, and its outer peripheral surface is provided with an annular groove 28a extending in the circumferential direction (see Figure 19 ), the tension member 25 is embedded in and held in the groove 28a. The feed roller 28 is located between the first guide roller 26, the second guide roller 27 and the sliding shaft 13, limiting the tension member 25 in the front-to-back direction ( Figure 19 The feed roller 28 rotates as the tension member 25 moves forward or backward due to the friction between the feed roller 28 and the tension member 25.

[0098] <Configuration of the Load Transmission Device 1D for a Training Apparatus in the Fourth Embodiment> See also Figure 20 , a load transmission device 1D for a training apparatus according to a fourth embodiment (hereinafter referred to as load transmission device 1D) will be described. Figure 20 This is a front view illustrating the internal structure of a load transfer device 1D according to a fourth embodiment. The load transfer device 1D is a modified example of the load transfer device 1B and also a modified example of the load transfer device 1C. It is mounted on the second training apparatus 201 to receive force from the user's foot. The following description of the load transfer device 1D will only describe the differences from the load transfer device 1B. For components identical to the load transfer device 1B, Figure 20 The same reference numerals are used in the figures and the related descriptions are omitted.

[0099] The load transfer device 1D has an additional feed roller 28 compared to the load transfer device 1B. In addition, the load transfer device 1D differs from the load transfer device 1C in the structure of the driving shaft 276. The driving shaft 276 is different from the driving shaft 4 of the load transfer device 1D (see Figure 19 The top end 276c of the driving shaft portion 276 protrudes from the same side as the sliding shaft portion 13, and the top end 276c is connected to the pedal portion 271, which is different from the load transmission device 1A.

[0100] The first guide roller 26, the second guide roller 27 and the feed roller 28 are all mounted near the uppermost end of the guide support 140 via the mounting bracket 141. Figure 7 The load transfer device 1B shown, Figure 20 The load transfer device 1D shown, and Figure 22 The load transfer device 1F shown is equipped with a footrest 271 and is mounted on the second training apparatus 201. In this case, the first guide roller 26, the second guide roller 27, and the feed roller 28 are mounted via a mounting bracket 141, such as near or below the seat 211. The tension member 25 extends from the load-applying portion 230, passing through and around the first guide roller 26, the second guide roller 27, the feed roller 28, and the pulley 285h. Similar to the load transfer device 1C, the tension member 25 is connected to the sliding shaft 13, transmitting the tension 19 while also stretching tangentially along the outer circumference of the cylindrical feed roller 28, adjusting its stretching direction based on the axial and linear motion of the sliding shaft 13. The tension member 25, connected to the second end 13c of the sliding shaft 13, stretches as the second end 13c moves horizontally, changing the stretching angle applied by the feed roller 28.

[0101] The feed roller 28 is the same as the load transfer device 1C and is in the shape of a disk. The outer peripheral surface of the feed roller 28 is provided with an annular groove 28a extending in the circumferential direction (see FIG. Figure 20 ), the tension member 25 is embedded in and held in the groove 28a. The feed roller 28 is located between the first guide roller 26, the second guide roller 27 and the sliding shaft 13, limiting the tension member 25 in the front-to-back direction (i.e. Figure 20 The feed roller 28 also rotates as the tension member 25 moves forward or backward due to the friction between the feed roller 28 and the tension member 25.

[0102] <Configuration of the Load Transmission Device 1E for a Training Apparatus in the Fifth Embodiment> See also Figure 21 , a load transmission device 1E for a training apparatus according to a fifth embodiment (hereinafter referred to as load transmission device 1E) will be described. Figure 21This is a front view illustrating the internal structure of the fifth embodiment of the load transmission device 1E. The load transmission device 1E is a modified example of the load transmission device 1A and is mounted on the first training apparatus 100 to receive the force applied by the user's hand. In the following description of the load transmission device 1E, only the differences from the load transmission device 1A are described. For the same components as the load transmission device 1A, Figure 21 The same reference numerals are used in the figures and the related descriptions are omitted.

[0103] The load transfer device 1E is constructed based on the load transfer device 1A, but without the first guide roller 26, second guide roller 27, and mounting bracket 141. The tension member 25 extends from the load-applying portion 230, passes through and loops back around the direction-changing guide pulley 170, and is then connected to the sliding shaft portion 13. The tension member 25 is connected to the sliding shaft portion 13, transmitting the tensile force 19 while extending tangentially along the outer circumference of the cylindrical feed roller 28. The direction of extension is adjusted according to the axial and linear movement of the sliding shaft portion 13. The tension member 25, connected to the second end portion 13c of the sliding shaft portion 13, extends as the second end portion 13c moves horizontally, changing the angle of its extension from the direction-changing guide pulley 170.

[0104] <Configuration of the Load Transmission Device 1F for a Training Apparatus in the Sixth Embodiment> See also Figure 22 , a load transmission device 1F for a training apparatus according to a sixth embodiment (hereinafter referred to as load transmission device 1F) will be described. Figure 22 This is a front view illustrating the internal structure of a load transfer device 1F according to the sixth embodiment. Load transfer device 1F is a modified example of load transfer device 1B and also a modified example of load transfer device 1E. It is mounted on the second training apparatus 201 to receive force from the user's foot. The following description of load transfer device 1F will only describe the differences from load transfer device 1B. For components identical to load transfer device 1B, Figure 22 The same reference numerals are used in the figures and the related descriptions are omitted.

[0105] The structure of the load transfer device 1F is based on the load transfer device 1B, but without the first guide roller 26, the second guide roller 27, and the mounting bracket 141. Furthermore, the structure of the drive shaft 276 of the load transfer device 1F is different from that of the load transfer device 1E. The drive shaft 276 is different from the drive shaft 4 of the load transfer device 1E (see FIG. Figure 21) is different from the load transfer device 1A in that the top end 276c of the driving shaft 276 protrudes from the same side as the sliding shaft 13 and is connected to the pedal portion 271. This is also different from the load transfer device 1A. The tension member 25 extends from the load-applying portion 230, passes through and loops around the pulley 285h, and is connected to the sliding shaft 13. The tension member 25 is connected to the sliding shaft 13, capable of transmitting the tension 19 and adjusting its extension direction according to the axial and linear movement of the sliding shaft 13. The tension member 25, connected to the second end 13c of the sliding shaft 13, extends as the second end 13c moves horizontally, changing the angle of its extension from the direction conversion guide wheel 170.

[0106] <Configuration of the Load Transmission Device 1G for a Training Apparatus in the Seventh Embodiment> See also Figure 23 and Figure 24 , a load transmission device 1G for a training apparatus according to a seventh embodiment (hereinafter referred to as load transmission device 1G) will be described. Figure 23 This is a front view illustrating the internal structure of the load transfer device 1G according to the seventh embodiment. Figure 24 This is a perspective view illustrating its internal structure. The load transmission device 1G is a modified example of the load transmission device 1B and is installed on the second training device 201 to receive the force applied by the user's foot. In the following description of the load transmission device 1G, only the differences from the load transmission device 1B are described. For the same components as the load transmission device 1B, Figure 23 and Figure 24 The same reference numerals are used in the figures and the related descriptions are omitted.

[0107] The load transmission device 1G has a different guide direction of the straight guide portion 20 than the load transmission device 1B. In the load transmission device 1G, the guide direction of the slider 20c of the straight guide portion 20 is relative to Figure 23 The direction perpendicular to the paper is perpendicular to the extending direction of the conveyor chain 10. Therefore, the extending direction of the first guide 20a and the second guide 20b of the straight guide portion 20 is also perpendicular to the paper. Figure 23 The direction is perpendicular to the paper and is orthogonal to the extension direction of the transfer chain 10.

[0108] Since the connecting and fixing portion 23 is fixed to the slider 20c, the connecting and fixing portion 23 will be relative to the slider 20c. Figure 23The driving shaft 276 and the sliding shaft 13 move horizontally, along with the connecting and fixing portion 23, in a reciprocating horizontal direction. The horizontal movement of the driving shaft 276 pulls on the tension member 25 connected to the sliding shaft 13, generating a load. Furthermore, the rotational movement of the driving shaft 276, accompanied by the axial displacement of the sliding shaft 13, also pulls on the tension member 25, generating a load.

[0109] The upper surface 22a of the housing 22 is formed with an elongated hole 34 for accommodating the outwardly protruding driving shaft portion 276. The driving shaft portion 276 reciprocates within the elongated hole 34 in the direction indicated by arrow 276a. Furthermore, the upper surface 22a of the housing 22 is also formed with an elongated hole 33 for accommodating the outwardly protruding sliding shaft portion 13. The sliding shaft portion 13 reciprocates within the elongated hole 33 in the direction indicated by arrow 13d.

[0110] The rotational motion of the pedal portion 271, mounted on the top end 276c of the driving shaft 276, is transmitted via the transmission chain 10 to the intermediate bevel gear 5d. The rotational motion of the intermediate bevel gear 5d is further transmitted via the second rotation transmission portion 1M to the crankshaft bevel gear 6c, which is a co-existing component of the intermediate bevel gear 5d. Because the rotational motion of the crankshaft bevel gear 6c is affected by the resistance generated by the load applied by the tension member 25 transmitted via the connecting member 30 and the sliding shaft 13, the intermediate bevel gear 5d experiences a reaction force, which causes the intermediate bevel gear 5d to move horizontally along its rotational direction. This horizontal displacement force acting on the intermediate bevel gear 5d is transmitted via the connecting and fixing portion 23 to the driving shaft 276 and the pedal portion 271.

[0111] Therefore, when the user places their foot on the pedal portion 271 and rotates it clockwise, the pedal portion will move horizontally with a load toward the right side of the user's perspective. Conversely, when the user places their foot on the pedal portion 271 and rotates it counterclockwise, the pedal portion 271 will move horizontally with a load toward the left side of the user's perspective. As a result, the user's legs will move horizontally in the same direction as the pedal portion 271 rotates, so the legs will simultaneously perform a compound motion of rotation and lateral movement, thereby exercising multiple leg muscle groups. Furthermore, if the user adds flexion and extension movements to the pedal portion 271, the legs will simultaneously perform rotational movement, lateral movement, and flexion and extension movements in three directions, thereby achieving three-dimensional compound training covering a wide range of leg muscles.

[0112] <Configuration of the Load Transmission Device 1H for a Training Apparatus in the Eighth Embodiment> See also Figure 25, the load transmission device 1H for training equipment in the eighth embodiment (hereinafter referred to as the load transmission device 1H) is described. Figure 25 This is a front view illustrating the internal structure of the load transmission device 1H of the eighth embodiment. The load transmission device 1H is a modified example of the load transmission device 1A and also a modified example of the load transmission device 1G. It is installed on the first training device 100 to receive the force applied by the user's hand. It is different from the load transmission device 1G mainly used for lower limb exercise (see Figure 23 and Figure 24 ), the load transmission device 1H is mainly used for upper limb exercise and is mounted on the first training apparatus 100. In addition, the load transmission device 1H differs from the load transmission device 1G in the structure of the active shaft portion 4. The active shaft portion 4 protrudes from the opposite side of the sliding shaft portion 13, and the end portion is connected to the grip portion 11, which is different from the active shaft portion 276 ( Figure 23 and Figure 24 In the following description of the load transmission device 1H, only the differences from the load transmission device 1A are described. For the common configuration with the load transmission device 1A, Figure 25 The same reference numerals are used in the figures and the related descriptions are omitted.

[0113] The load transmission device 1H has a different guide direction of the linear motion guide 20 than the load transmission device 1A. In the load transmission device 1H, the guide direction of the slider 20c of the linear motion guide 20 is relative to Figure 25 The direction perpendicular to the paper is perpendicular to the extending direction of the transmission chain 10. Therefore, the extending direction of the first guide 20a and the second guide 20b of the linear motion guide portion 20 is also perpendicular to the paper. Figure 25 The direction is perpendicular to the paper and is orthogonal to the extending direction of the transmission chain 10 .

[0114] The rotational motion of the grip 11, attached to the tip of the drive shaft 4, is converted into rotational motion of the intermediate bevel gear 5d via the transmission chain 10. This rotational motion of the intermediate bevel gear 5d is further transmitted to the crankshaft bevel gear 6c, which constitutes the second rotation transmission unit 1M. Because the rotational motion of the crankshaft bevel gear 6c is subject to resistance generated by the connecting member 30 and the sliding shaft 13, namely, the load from the tension member 25, the intermediate bevel gear 5d is subjected to a horizontal force in reaction to its rotational motion, causing it to move in the same direction as the rotational motion. This horizontal thrust acting on the intermediate bevel gear 5d is transmitted to the drive shaft 4 and the grip 11 via the connecting and fixing portion 23.

[0115] Therefore, it is assumed that the user sets the load transfer device 1H according to the initial state (see Figure 8 and Figure 9) Stand facing forward, with the backs of their hands facing the left and right sides of the first training device 100, and grasp the grip 11. From this position, if the user rotates the grip 11 clockwise, the grip 11 will move with the load in the same direction as the rotation, i.e., to the right from the user's perspective. On the other hand, if the user rotates the grip 11 counterclockwise, the grip 11 will also move with the load in the same direction as the rotation, i.e., to the left from the user's perspective.

[0116] Therefore, the user's arm will move horizontally in the same direction as the rotation of the grip 11, thereby generating both rotational and lateral movement in the user's arm, allowing multiple muscles in the arm to perform a complex exercise. Furthermore, if the user adds the action of pulling the arm downward, the arm will simultaneously perform rotational movement, lateral movement, and downward pulling movement, thus performing a three-directional exercise, thereby utilizing a wide range of arm muscle groups for a three-directional complex training.

[0117] The present invention is not limited to the load transmission devices 1A, 1B, 1C, 1D, 1E, 1F, 1G, and 1H for training apparatuses according to the above-described embodiments, and the first training apparatus 100 and the second training apparatus 201 using these devices. The present invention can be implemented according to various other modifications or applications without departing from the spirit of the invention as set forth in the claims. Description of Reference Numerals

[0118] 1A: The load transfer device for the training apparatus in the first embodiment; 1B: The load transfer device for the training apparatus in the second embodiment; 1C: The load transfer device for the training apparatus in the third embodiment; 1D: The load transfer device for the training apparatus according to the fourth embodiment; 1E: The load transfer device for the training apparatus according to the fifth embodiment; 1F: The load transfer device for the training apparatus according to the sixth embodiment; 1G: The load transfer device for the training apparatus according to the seventh embodiment; 1H: The load transfer device for the training apparatus in the eighth embodiment; 1K: 1st rotation transmission part; 1M: second rotation transmission part; 4: Active shaft; 4a: driving shaft bearing; 4b: driving shaft bearing; 4c: driving shaft sprocket; 5: intermediate shaft; 5a: intermediate shaft bearing; 5b: intermediate shaft bearing; 5c: intermediate shaft sprocket; 5d: intermediate shaft bevel gear; 6: Crankshaft; 6a: crankshaft bearing; 6c: crankshaft bevel gear; 7: connecting part; 8: Connecting cylinder; 10: transmission chain; 11: grip part; 11a: Grip the stick; 11b: frame; 13: sliding shaft; 13a: Sliding bearing; 13b: 1st end; 13c: second end; 13d: arrow; 19: tension; 20: linear motion guide; 20a: 1st guide rail; 20b: 2nd rail; 20c: slider; 20d: guide support platform; 22: housing portion; 22a: upper surface; 23: connecting fixing portion; 23a: 1st fixing plate; 23b: second fixing piece; 25: Tension member; 26: 1st guide roller; 26a: slot; 27: 20th guide roller; 27a: slot; 28: feeding roller; 28a: slot; 30: connecting components; 30a: 1st connecting rod; 30b: 2nd connecting rod; 30c: 1st joint; 30d: second joint; 33: long hole; 34: long hole; 100: No. 1 training device; 100a: First training device for both arms; 100b: Single-arm training device No. 1; 110: Sitting Department; 111: Seat; 112: seat pillar; 120: frame; 121: Thigh pressing area; 130: load imparting unit; 131: counterweight; 132: counterweight guide pillar; 133: Box Department; 134: pulley; 135: Support desk; 136: hole; 140: guide pillar; 141: Mounting bracket; 170: Direction conversion guide wheel; 170a: slot; 181: Tension member connection part; 201: 2nd training device; 210: Sitting Department; 211: Seat; 212: Seat pillar; 215: backrest; 220: frame; 221: frame; 222a: slide rail; 222b: slide rail; 225: upper shell; 230: load imparting unit; 231: shock absorber; 232: counterweight guide pillar; 233: counterweight; 240: guide pillar; 241: shock absorber; 250: lifting part; 251: axis; 271: footrest; 272: bearings; 273: 3rd rotation axis; 274a: side panels; 274b: side panels; 275: connecting plate; 276: driving shaft; 276a: arrow; 276c: top; 277: Upper part of the body; 278: Lower part of the body; 279: connection part; 280: Tension member; 280a: 1st tension member; 280b: connecting portion; 280c: second tension member; 285h: Pulley.

Claims

1. A load transfer device for a training apparatus, characterized in that: have: An active shaft portion, the end of which is connected to an input portion to which a user applies force and rotates together with the input portion; an intermediate shaft portion that rotates in conjunction with the rotation of the driving shaft portion; a first rotation transmission portion, the first rotation transmission portion being connected between the driving shaft portion and the intermediate shaft portion and configured to transmit rotation between the driving shaft portion and the intermediate shaft portion; a second rotation transmission portion, the second rotation transmission portion being provided between the intermediate shaft portion and a crankshaft portion perpendicular to the intermediate shaft portion and configured to transmit rotation between the intermediate shaft portion and the crankshaft portion; a sliding shaft portion, which is subjected to external pressure and supported by a bearing and is allowed to reciprocate in the axial direction of the bearing; a linear motion guide portion having a connecting and fixing portion connecting the driving shaft portion, the intermediate shaft portion, the crankshaft portion, and the bearing, and guiding the connecting and fixing portion in a linear direction parallel to the extending direction of the first rotation transmitting portion; a tension member connected to the sliding shaft portion to transmit tension and changing an extension direction according to movement of the sliding shaft portion in the axial direction and the linear direction; and A connecting member, the end of which is connected to the crankshaft portion and the sliding shaft portion, and converts the rotation of the crankshaft portion into a reciprocating motion of the sliding shaft portion.

2. The load transfer device for a training apparatus according to claim 1, wherein: The input portion may serve as a grip portion held by the user or a footrest portion for the user.

3. The load transfer device for a training apparatus according to claim 1, wherein: It further includes a connecting portion for connecting to the load transfer device for the training apparatus.

4. The load transfer device for a training apparatus according to claim 1, wherein: The first rotation transmission part may be a transmission chain, wherein the driving shaft portion includes a driving shaft sprocket, the intermediate shaft portion includes an intermediate shaft sprocket, and the transmission chain is suspended between the driving shaft sprocket and the intermediate shaft sprocket.

5. The load transfer device for a training apparatus according to claim 1, wherein: The second rotation transmission portion further includes an intermediate shaft bevel gear provided on the intermediate shaft portion, and a crankshaft bevel gear provided on the crankshaft portion and meshing with the intermediate shaft bevel gear.

6. The load transfer device for a training apparatus according to claim 2, wherein: The gripping portion is a ring.

7. The load transfer device for a training apparatus according to claim 1, wherein: The external force is generated by a load applying portion that can freely adjust the magnitude of the load of the load transmitting device for the training apparatus.

8. A training device, characterized in that: The invention comprises the load transfer device for a training apparatus according to claim 1.

Images