A load transmission mechanism for a training device and a training device using the same

Abstract

A load transmission mechanism for a training device, a frame of which accommodates: a grip shaft portion to which a grip portion held by a user is connected at a first end portion and which rotates; an intermediate shaft portion that rotates in linkage with the rotation of the grip shaft portion; a transmission portion suspended between the grip shaft portion and the intermediate shaft portion and that transmits the mutual rotation of the grip shaft portion and the intermediate shaft portion; a rotation conversion portion provided on a crank shaft portion orthogonal to the intermediate shaft portion and that transmits the rotation of the intermediate shaft portion; and a crank shaft portion that converts the rotation of the crank shaft portion into up-and-down movement of a sliding shaft portion provided at a position parallel to the intermediate shaft portion. The first end portion of the grip shaft portion protrudes from a shaft opening portion formed in the frame in a direction orthogonal to the transmission portion, and the first end portion of the grip shaft portion is swingably supported by the frame, and a second end portion opposite the first end portion of the grip shaft portion swings within the shaft opening portion.

Description

Technical Field

[0001] This invention relates to a load transmission mechanism for training equipment and training equipment using the mechanism. Background Technology

[0002] In the past, various types of training equipment have been available to train users' arms, shoulders, and other body parts. For example, Patent Document 1 discloses a training device that can exercise both arms. According to the training device described in Patent Document 1, it does not cause muscle hardening, puts less strain on the body such as muscle pain and fatigue, and can result in soft and elastic shoulder or back muscles.

[0003] The training device in Patent Document 1 includes a load transmission mechanism between a cable extending from a counterweight (weight) on one side of the training device and a handle held by the user. This load transmission mechanism includes a rotating shaft, referred to as a lifting and rotating component, and gears. Compared to training devices that simply connect the cable on the counterweight side to the handle held by the user, the training device in Patent Document 1, by incorporating the lifting and rotating component (load transmission mechanism), can apply complex movements such as twisting to the arm muscles that the user wants to train. Therefore, it is not limited to muscle training in a single direction; by activating more muscles around the arm bones, it can achieve muscle training with greater flexibility.

[0004] Existing technical documents

[0005] Patent documents

[0006] Patent Document 1: Japanese Patent Application Publication No. 2006-187317 Summary of the Invention

[0007] The problem the invention aims to solve

[0008] The inventors conducted repeated and in-depth research on the lifting and swinging component (load transmission mechanism) of the training equipment in Patent Document 1. Furthermore, the inventors improved the motion of the shaft in the lifting and swinging component (load transmission mechanism).

[0009] The present invention was made in view of the above-mentioned problems, and its object is to provide a load transmission mechanism for training equipment and a training equipment using the unit, which can apply complex movements to the muscles that the user wants to exercise by increasing the degree of freedom of movement of the shaft constituting the load transmission mechanism.

[0010] Technical solutions to the problem

[0011] That is, the load transmission mechanism for training equipment in the embodiment is characterized in that: the frame houses: a grip shaft portion, wherein a grip portion held by a user is connected to a first end and rotates; an intermediate shaft portion, which rotates in conjunction with the rotation of the grip shaft portion; a transmission portion, suspended between the grip shaft portion and the intermediate shaft portion, and transmitting the mutual rotation of the grip shaft portion and the intermediate shaft portion; a rotation conversion portion, which is disposed on a crank shaft portion orthogonal to the intermediate shaft portion and transmits the rotation of the intermediate shaft portion; a crank shaft portion, which converts the rotation of the crank shaft portion into the up-and-down movement of a sliding shaft portion, the sliding shaft portion being disposed in a position parallel to the intermediate shaft portion; a first end portion of the grip shaft portion protrudes from a shaft opening portion, the shaft opening portion being formed in the frame in a direction orthogonal to the transmission portion, the first end portion of the grip shaft portion being pivotally supported by the frame, and a second end portion opposite to the first end portion of the grip shaft portion pivoting within the shaft opening portion.

[0012] In the load transmission mechanism of the training equipment, optionally, the frame is configured to accommodate: a rotation conversion part, including: an intermediate shaft bevel gear disposed on the intermediate shaft part and a crank shaft bevel gear disposed on the crank shaft part and meshing with the intermediate shaft bevel gear; the crank shaft part includes: a connecting plate part rotatably connected to the crank shaft part and a sliding shaft part connected to the connecting plate part and located parallel to the intermediate shaft part, which converts the rotation of the crank shaft part into forward and backward motion through the connecting plate part.

[0013] Further, optionally, the frame is configured to include: a limiting plate that limits the swing of the first end side of the holding shaft portion within the shaft opening.

[0014] Further, optionally, the limiting plate is configured to include a claw portion that engages with the gripping shaft portion. Additionally, optionally, the limiting plate engages with the gripping shaft portion via the claw portion when it advances toward the shaft opening, and disengages from the first end side of the gripping shaft portion when it retracts from the shaft opening.

[0015] Optionally, the transmission unit is configured as a transmission chain, with a gripping shaft sprocket on the gripping shaft part and an intermediate shaft sprocket on the intermediate shaft part engaged in the middle, and the transmission chain is suspended between the gripping shaft sprocket and the intermediate shaft sprocket.

[0016] Optionally, a force-applying shaft is provided between the holding shaft and the intermediate shaft to apply tension to the transmission unit.

[0017] Optionally, the force-applying shaft portion may be configured to include a disc portion that contacts the transmission portion.

[0018] Optionally, the gripping part can be set as a ring-shaped object or a semi-cylindrical object.

[0019] Optionally, a spherical portion is provided on the second end of the holding shaft portion.

[0020] Optionally, the sliding shaft is configured to connect to the load application part that allows for adjustment of the load size of the training equipment.

[0021] Optionally, the frame may include a connector for connecting to training equipment.

[0022] Invention Effects

[0023] According to the present invention, a load transmission mechanism for training equipment includes a frame housing comprising: a grip shaft portion connected to a first end for user gripping and rotating; an intermediate shaft portion that rotates in conjunction with the rotation of the grip shaft portion; a transmission portion suspended between the grip shaft portion and the intermediate shaft portion and transmitting the relative rotation of the grip shaft portion and the intermediate shaft portion; a rotation conversion portion disposed on a crank shaft portion orthogonal to the intermediate shaft portion and transmitting the rotation of the intermediate shaft portion; a crank shaft portion that converts the rotation of the crank shaft portion into the up-and-down movement of a sliding shaft portion disposed in a position parallel to the intermediate shaft portion; a first end portion of the grip shaft portion protruding from a shaft opening portion formed in the frame in a direction orthogonal to the transmission portion; the first end portion of the grip shaft portion being pivotally supported by the frame; and a second end portion opposite to the first end portion of the grip shaft portion pivoting within the shaft opening portion. Therefore, by increasing the degree of freedom of movement of the shaft constituting the load transmission mechanism, complex movements can be applied to the muscles of the arm to be exercised by the user. At the same time, by setting up training equipment that uses a load transmission mechanism for training equipment, satisfactory training can be achieved for users. Attached Figure Description

[0024] Figure 1 This is a side perspective view of an example of the internal structure of the load transmission mechanism for training equipment according to the first embodiment;

[0025] Figure 2 From Figure 1 A side perspective view from below;

[0026] Figure 3 This is a schematic diagram of the cross-section near the holding shaft;

[0027] Figure 4 A is a schematic diagram of the restrictor plate moving forward;

[0028] Figure 4 B is a diagram showing the limiting plate retracting;

[0029] Figure 5 A is a schematic diagram of another type of restriction plate moving forward;

[0030] Figure 5 B is a schematic diagram of another type of restriction plate retracting;

[0031] Figure 6 This is a side perspective view of the load transmission mechanism for training equipment according to the second embodiment;

[0032] Figure 7 yes Figure 6 Side view;

[0033] Figure 8 This is a side perspective view of the load transmission mechanism for training equipment according to the third embodiment;

[0034] Figure 9 yes Figure 8 Side view;

[0035] Figure 10 It is a 3D diagram of the first training equipment;

[0036] Figure 11 This is the front view of the first training equipment;

[0037] Figure 12 It is a three-dimensional diagram of the first use of the first training equipment;

[0038] Figure 13 This is the front view of the first use of the first training equipment;

[0039] Figure 14 This is a three-dimensional diagram of the second use of the first training equipment;

[0040] Figure 15 This is the front view of the second use of the first training equipment;

[0041] Figure 16 This is a 3D diagram of the second training equipment;

[0042] Figure 17 This is the front view of the second training equipment;

[0043] Figure 18 This is a 3D diagram showing how to use the second training equipment;

[0044] Figure 19 This is a frontal 3D view of how to use the second training equipment;

[0045] Figure 20 The photos are (A) Photo 1, (B) Photo 2, (C) Photo 3, (D) Photo 4, and (E) Photo 5, taken when using the first training equipment. The first training equipment has a load transmission mechanism for the training equipment.

[0046] Figure 21 Further, (A) photo 6, (B) photo 7, (C) photo 8, (D) photo 9 and (E) photo 10;

[0047] Figure 22Further, (A) photo 11, (B) photo 12, (C) photo 13, (D) photo 14 and (E) photo 15;

[0048] Figure 23 A is a graph of electromyography (EMG) when the shaft is oscillating;

[0049] Figure 23 B is the electromyography curve when the holding shaft does not swing. Detailed Implementation

[0050] Figure 1 , Figure 2 , Figures 6-9 The load transmission mechanisms 1A, 1B, and 1C disclosed in the examples are connected to the training equipment 100 or 200 described later. The load transmission mechanisms 1A, 1B, and 1C for the training equipment are mechanisms for transmitting loads such as counterweights from the training equipment side to the user of the training equipment.

[0051] <Load transmission mechanism for training equipment according to the first embodiment>

[0052] Figure 1 and Figure 2 This is a perspective view showing the internal structure of the load transmission mechanism 1A for training equipment according to the first embodiment. In the load transmission mechanism 1A for training equipment, a gripping shaft portion 10, an intermediate shaft portion 20, a crank shaft portion 40, and a sliding shaft portion 50 are provided on the frame 2. Power transmission can be achieved between the gripping shaft portion 10 and the sliding shaft portion 50 via the respective shafts between them.

[0053] In the load transmission mechanism 1A for training equipment of the first embodiment, each of the intermediate shaft portion 20, crank shaft portion 40, and sliding shaft portion 50 is rotatably supported on the frame 2. Figure 1 and Figure 2 It can be seen that each shaft is supported on the upper 2a and lower 2b of the frame 2 and on the inner surface of the frame 2. Suitable bearings are installed at the shaft supports for smooth rotation. Furthermore, in order to connect the load transmission mechanism 1A of the first embodiment for the training equipment to the training equipment 100 described later (see...), Figure 9 (etc.), the frame 2 includes a connecting part 7. The connecting part 7 of the load transmission mechanism 1A for training equipment is in the form of a cylindrical connecting tube part 8. Guide post 140 (see Figure 10 It is inserted into the connecting cylinder 8. The connecting cylinder 8 can be made of a component with low sliding resistance, such as fluororesin. As a result, the load transmission mechanism 1A for the training equipment can move up and down and rotate smoothly on the training equipment 100.

[0054] The grip shaft portion 10 includes a first end portion 11 and a second end portion 12, and a grip portion 160 for user gripping is connected to the first end portion 11 (see [link]). Figure 10 (etc.). Furthermore, the user's hand and arm movements are transmitted to the grip shaft 10 via the grip portion 160, causing the grip shaft 10 itself to rotate. As will be seen from the training equipment 100 described later, the grip portion 160 connected to the grip shaft 10 is a ring-shaped object, and particularly because it is gripped with fingers, it is a rectangular ring-shaped object. (e.g.) Figure 10 As shown, the gripping part 160 is rectangular (quadrilateral) in the top view, forming a seamless, continuous ring.

[0055] The intermediate shaft 20 rotates in conjunction with the rotation of the gripping shaft 10. Furthermore, a transmission unit 15 is suspended between the gripping shaft 10 and the intermediate shaft 20, transmitting the relative rotation between them. The gripping shaft 10 and the intermediate shaft 20 are arranged parallel to each other. The connection between the gripping shaft 10 and the frame 2 will be described later. Figure 4 The intermediate shaft portion 20 is supported at both ends by the wall shaft of the frame 2.

[0056] In the load transmission mechanism 1A used for training equipment, the transmission part 15 is a transmission chain 16 ( Figure 1 (Double-dotted line indicates the direction of transmission). To suspend and engage the transmission chain 16 of the transmission unit 15, the holding shaft part 10 is provided with a holding shaft sprocket 13, and the intermediate shaft part 20 is provided with an intermediate shaft sprocket 23. The transmission unit 15 may use a combination of belt and pulley (not shown) instead of the transmission chain 16.

[0057] As shown in the figure, the intermediate shaft portion 20 and the crankshaft portion 40 are orthogonally connected to each other, and a rotation conversion unit for transmitting the rotation of the intermediate shaft portion 20 is provided on both the intermediate shaft portion 20 and the crankshaft portion 40. In an embodiment, the rotation conversion unit includes: an intermediate shaft bevel gear 22 provided on the intermediate shaft portion 20 and a crankshaft bevel gear 42 provided on the crankshaft portion 40 and meshing with the intermediate shaft bevel gear 20. Therefore, the rotational motion of the intermediate shaft portion 20 is linked to the crankshaft portion 40 at a right angle. In addition, as a mechanism for the rotation conversion unit that orthogonally connects the intermediate shaft portion and the crankshaft portion, examples include a combination of a crown gear and a spur gear, a combination of a worm and a worm wheel, etc.

[0058] A connecting plate portion 41 is connected to the crankshaft portion 40. The connecting plate portion 41 is rotatably connected to a connecting portion of the connecting plate portion 41 that protrudes from the crankshaft portion 40. Furthermore, the end of the sliding shaft portion 50 is rotatably connected to the connecting plate portion 41. The sliding shaft portion 50 is positioned parallel to the intermediate shaft portion 20. The rotation of the crankshaft portion 40 is converted into a vertical movement on the paper surface via the connecting plate portion 41 and transmitted to the sliding shaft portion 50.

[0059] Sliding shaft 50 and freely adjustable training equipment 100 (see Figure 10 The load application part 130 is connected to the load size of the load.

[0060] As the crankshaft portion 40 rotates, the connecting plate portion 41 also moves. Therefore, the sliding shaft portion 50 moves up and down via the connecting plate portion 41. That is, the sliding shaft portion 50 moves up and down by rotating the shaft holding the shaft portion 10, and the training equipment 100 (see reference 100) connected to the sliding shaft portion 50 moves up and down. Figure 10 The load application part 130 (counterweight) moves up and down. Furthermore, in the load transmission mechanism 1A for training equipment, the rotary transmission part 1S includes: a grip shaft sprocket 13 mounted on the grip shaft part 10, an intermediate shaft sprocket 23, a transmission part 15 (transmission chain 16) suspended between the grip shaft sprocket 13 and the intermediate shaft sprocket 23, an intermediate shaft bevel gear 22 mounted on the intermediate shaft part 20, and a crankshaft bevel gear 42 meshing with the intermediate shaft bevel gear 22. Thus, by rotating the grip shaft part 10, the crankshaft part 40 also rotates.

[0061] In the load transmission mechanism 1A for training equipment, the crank mechanism 1K includes: a crankshaft portion 40; and a connecting plate portion 41, one end of which is rotatably connected to a protrusion extending from the center of the crankshaft portion 40, and rotatably connected to the end of the sliding shaft portion 50. Thus, the sliding shaft portion 50 moves forward and backward with the rotation of the crankshaft portion 40. In this way, the gripping shaft portion 10 (gripping portion 160) is applied to the load application portion 130 (both referenced to...). Figure 10 The load (etc.) is proportional to the rotational bias force and rotates the grip 160 relative to the grip shaft 10 axis. Then, when the user resists the rotational bias force and rotates the grip 160 relative to the grip shaft 10 axis, the sliding shaft 50 is pulled into the frame 2 through the rotational transmission 1S and the crank mechanism 1K, and the load application part 130 connected to the sliding shaft 50 is pulled up.

[0062] As a feature of the load transmission mechanism 1A (1B, 1C described later) for training equipment in this embodiment, the holding shaft 10 is not entirely supported by the frame 2 shaft, but allows for moderate oscillation. Figure 2 As shown in the top view from below, a shaft opening 3 is formed on the lower surface 2b of the frame 2. In this embodiment, the shaft opening 3 opens in a direction orthogonal to the transmission part 15 (the direction in which the transmission chain 16 is suspended). More specifically, in this embodiment, the shaft opening 3 opens in a direction orthogonal to the direction of the crankshaft part 40. As can be seen from the figure, the shaft opening 3 formed on the frame 2 is an elongated rectangular shape opened in a direction orthogonal to the length direction of the frame 2. The first end 11 of the holding shaft part 10 protrudes from the shaft opening 3. In the holding shaft part 10, the first end 11 can swing about the second end 12 in the length direction of the opening of the shaft opening 3 (the direction orthogonal to the transmission part 15) (see reference). Figure 1 ).

[0063] Figure 3 The cross-sectional schematic diagram shows the structure near the second end 12 of the gripping shaft 10. A swing opening 4 through which the gripping shaft 10 passes is formed on the frame 2. The second end 12 is inserted into the swing opening 4. A spherical portion 12r is formed on the second end 12 of the gripping shaft 10. Furthermore, a sliding surface 4r corresponding to the spherical portion 12r is formed on the swing opening 4. That is, a ball-and-socket joint is formed by the spherical portion 12r and the sliding surface 4r. To maintain the free swing of the spherical portion 12r of the second end 12 of the gripping shaft 10, a swing fixing plate 14 covers the spherical portion 12r. To increase or decrease the friction when the spherical portion 12r slides smoothly on the sliding surface 4r, the gap between the swing fixing plate 14 and the frame 2 can be adjusted by the spacer member 14v. Due to the ball-and-socket joint connection structure between the spherical portion 12r and the sliding portion 4r, the gripping shaft portion 10 can swing around the second end portion 12 (spherical portion 12r) in an arc-shaped trajectory (see the double-dotted line in the figure). However, the swinging of the first end portion 11 of the gripping shaft portion 10 is restricted according to the opening direction of the shaft opening portion 3. In addition to the sliding structure of the ball-and-socket joint of the spherical portion 12r of the gripping shaft portion 10 in this embodiment, for example, although not shown, a hole for shaft insertion is formed on the second end side of the gripping shaft portion, and swinging can be achieved in the hole through the shaft provided on the frame side. Furthermore, in order to cope with the torsion that occurs in the gripping shaft portion when it swings, a rotating mechanism such as a bearing is provided on the gripping shaft.

[0064] Furthermore, such as Figure 2 As shown in the perspective view, the load transmission mechanism 1A for the training equipment has a limiting plate 5 on the lower surface 2b of the frame 2. The limiting plate 5 restricts the swing of the first end 11 side of the holding shaft 10 in the shaft opening 3. See also [reference needed]. Figure 4 or Figure 5 A schematic diagram. Figure 4 and Figure 5 The difference lies in the number of claws, while the movement of the restraint plate itself is the same. Figure 4 The diagram in A corresponds to Figure 2 The limiting plate 5, which is provided on the lower surface 2b of the frame 2, is slidably accommodated in the sliding fixing part 6 (retracted position) on both sides in the left and right direction in the figure. The limiting plate 5 is provided with a claw part 5e protruding toward the shaft opening 3.

[0065] Next, in Figure 4The schematic diagram of B shows the state where the limiting plate 5 slides forward toward the shaft opening 3, with the claw 5e engaged with the gripping shaft 10 (forward position). In this case, the gripping shaft 10 is clamped between the two claws 5e and cannot move in the left-right direction on the paper. Thus, the limiting plate 5 can be easily switched between the engaged and disengaged states with the gripping shaft 10 by sliding. In addition, when the limiting plate 5 is fixed in the forward position, it can be temporarily fixed to the lower surface 2b of the frame 2 using appropriate bolts (not shown).

[0066] Figure 5 The schematic diagram shows as Figure 4 Another example of a limiting plate 5 is the limiting plate 5w. Figure 5 In the limiting plate 5w, claws 5f are also provided on the left and right sides of the two claws 5e (see reference). Figure 5 A). In Figure 4 In the limiting plate 5, two claws 5e constrain the holding shaft 10 to the position of the center portion in the length direction of the shaft opening 3. On the other hand, in Figure 5 In the limiting plate 5w, a claw 5f is added to the claw 5e. Therefore, the gripping shaft 10 is clamped between the claw 5e and the claw 5f, thereby restricting the gripping shaft 10 to the end position of the shaft opening 3 (see reference). Figure 5 B). Therefore, by using the limiting plate 5w, the gripping shaft 10 can be restricted to a position corresponding to the user's movements, training content, etc.

[0067] <Load transmission mechanism for training equipment according to the second embodiment>

[0068] Figure 6 and Figure 7 These are perspective and side views of the internal structure of the load transmission mechanism 1B for the training equipment according to the second embodiment. The load transmission mechanism 1B for the training equipment is mainly connected to the training equipment 200 described later (see...). Figure 16 (etc.) is a prerequisite for connection. and Figure 1 and Figure 2 Components that are identical in the figures are indicated by the same reference numerals and their descriptions will be omitted.

[0069] In the load transmission mechanism 1B for training equipment, the mechanism and equipment structure of the rotary transmission unit 1S and the crank mechanism unit 1K are the same as those in the load transmission mechanism 1A for training equipment described above. However, the directions of the first end 11 and the second end 12 of the holding shaft 10 are reversed. Furthermore, a swing fixing plate 14 is provided to allow the holding shaft 10 to swing on the side of the shaft opening 3. Additionally, the aforementioned limiting plate 5 may also be provided in the load transmission mechanism 1B for training equipment (see...). Figure 4The swing of the holding shaft 10 in the shaft opening 3 can be restricted by the limiting plate 5.

[0070] The load transmission mechanism 1B for the training equipment includes a mechanism for connecting with the training equipment 200 (see...). Figure 16 The connecting part 7 of the load transmission mechanism 1B for the training equipment shown in the figure consists of multiple rollers 9. The guide post 240 of the training equipment 200 is clamped between the multiple rollers 9 to realize the up-and-down movement and rotational movement of the load transmission mechanism 1B for the training equipment.

[0071] The grip portion 260, connected to the grip shaft 10 of the load transmission mechanism 1B used in the training equipment, is a semi-cylindrical object. The user places their palm on the curved surface of the grip portion 260 and grips it with their fingers. Furthermore, the user can adjust the direction and angle of the connection between the grip portion 260 and the grip shaft 10 according to the training content. Additionally, the direction of the fingertips when gripping the grip portion 260 is arbitrary.

[0072] <Load transmission mechanism for training equipment according to the third embodiment>

[0073] Figure 8 and Figure 9 These are perspective and side views of the internal structure of the load transmission mechanism 1C for the training equipment according to the third embodiment. The load transmission mechanism 1C for the training equipment is mainly connected to the training equipment 200 described later (see...). Figure 16 (etc.) is a prerequisite for connection. and Figure 1 and Figure 2 Components that are identical in the figures are indicated by the same reference numerals and their descriptions will be omitted.

[0074] In the load transmission mechanism 1C for training equipment, the mechanism and equipment structure of the rotary transmission unit 1S and the crank mechanism unit 1K are the same as those of the load transmission mechanisms 1A and 1B for training equipment described above. However, the directions of the first end 11 and the second end 12 of the holding shaft 10 are reversed. In addition, a swing fixing plate 14 is provided to allow the holding shaft 10 to swing on the side of the shaft opening 3. Furthermore, the aforementioned limiting plate 5 may also be provided in the load transmission mechanism 1C for training equipment (see...). Figure 4 The oscillation of the holding shaft 10 at the shaft opening 3 can be limited by the limiting plate 5. Furthermore, it is used with training equipment 200 (see...). Figure 16 The connection part 7 and the multiple rollers 9 connected by the connection are constructed in the same way as the load transmission mechanism 1B used for training equipment.

[0075] As a feature of the load transmission mechanism 1C for training equipment, a force-applying shaft 30 may be provided between the gripping shaft 10 and the intermediate shaft 20 of the rotary transmission unit 1S. The force-applying shaft 30 applies tension to the transmission unit 15 (transmission chain 16) suspended between the gripping shaft sprocket 13 of the gripping shaft 10 and the intermediate shaft sprocket 23 of the intermediate shaft 20. Specifically, in the force-applying shaft 30 shown, a disc portion 31 may be provided in the force-applying shaft 30. Therefore, the transmission unit 15 (transmission chain 16) is stretched as the diameter of the disc portion 31 increases.

[0076] from Figure 8 and Figure 9 As shown in the load transmission mechanism 1C for training equipment, the grip 260 is connected to the first end 11 located on the upper side of the grip shaft 10. The grip shaft 10 can swing freely at the shaft opening 3. When the grip 160 is vertically suspended, as in the load transmission mechanism 1A for training equipment, the grip shaft 10 is approximately located at the center of the shaft opening 3. Here, if the transmission 15 (transmission chain 16) is securely suspended between the grip shaft 10 and the intermediate shaft 20, in addition to the increased resistance between the grip shaft 10 and the intermediate shaft 20 during rotation, the wear of the transmission 15 (transmission chain 16) itself will also increase. As a result, the user's movements are subjected to additional pressure when using the training equipment. Therefore, in order to allow the components, including the grip shaft 10, to rotate smoothly, the transmission 15 (transmission chain 16) can be suspended between the grip shaft 10 and the intermediate shaft 20 with an appropriate degree of slack. This structure is also applicable to the load transmission mechanisms 1A and 1B for training equipment.

[0077] Because the transmission part 15 (transmission chain 16) is loosely suspended, the gripping shaft 10 of the load transmission mechanism 1B for the training equipment is prone to tipping towards either end of the shaft opening 3 due to the weight of the gripping part 260. In the load transmission mechanism 1C for the training equipment, the diameter of the force-applying shaft 30 (its disc part 31) is larger than the diameter of the gripping shaft sprocket 13 and the intermediate shaft sprocket 23. Therefore, even if a moderate tension is generated in the transmission part 15 (transmission chain 16), the meshing between the transmission part 15 (transmission chain 16), the gripping shaft sprocket 13, and the intermediate shaft sprocket 23 is reduced. As a result, the resistance between the transmission part 15 (transmission chain 16), the gripping shaft sprocket 13, and the intermediate shaft sprocket 23 is reduced when the gripping shaft 10 rotates to the side. Thus, no additional pressure is applied to the user's movements when using the training equipment. This mechanism for applying tension to the transmission part 15 (transmission chain 16) can also be applied to the load transmission mechanisms 1A and 1B for the training equipment described above.

[0078] <First Training Equipment>

[0079] The structure of the first training equipment 100 is as follows: Figures 10-15 As shown. The first training device 100 is a device equipped with the load transmission mechanism 1A for training devices of the first embodiment.

[0080] First training equipment 100 Figures 10 to 15 As shown, it includes: a seat 110; a frame 120 supporting the seat 110; a load application part 130 disposed on the frame 120, which can freely adjust the load size; two guide posts 140 vertically fixed to the frame 120 at a predetermined interval so that the seat 110 is located at the center of the frame 120; two load transmission mechanisms 1A for training equipment, one end of each of the two guide posts 140 being able to move freely up and down and rotate freely in the horizontal direction; a gripping part 160 connected to the first end 11 of the two load transmission mechanisms 1A for training equipment; and a pulling member 180, one end of which is connected to the load application part 130, and the other end of which passes around a guide wheel 170 disposed on the frame 120 and is connected to the load transmission mechanism 1A for training equipment at a position closer to the other end than the engagement position of the guide posts 140. In the load transmission mechanism 1A for training equipment, a load rotating around the axis of the holding part 160 is applied by the load application part 130 connected to the other end of the pulling member 180.

[0081] The seat 110 includes a seat 111 for the user of the training equipment 100 to sit facing forward, and a seat support 112 vertically disposed on the lower surface of the seat 111.

[0082] The frame 120 securely mounts the training equipment 100 to the ground and serves as the skeleton of the entire training equipment 100. It houses the seat 110, load application section 130, two guide pillars 140, and other components. A seat support 112 is inserted through a hole vertically extending forward from the center of the lower surface of the frame 120, supporting the seat 110. The frame 120 includes a thigh-pressing section 121 to prevent the user's thighs from lifting while seated on the seat 111. Preferably, the thigh-pressing section 121 is provided to allow the user to form a proper arch in their back during training.

[0083] The load application unit 130 can freely adjust the size of the load set on the frame 120, and includes: a counterweight 131, composed of multiple plate-shaped metal weight components; counterweight guide posts 132, supporting the counterweight 131 to move freely up and down on the frame 120; and a clamp (not shown) that can freely connect and separate the counterweights 131 from each other. The load applied to the load application unit 130 is adjusted by increasing or decreasing the number of counterweights 131. A pair of cylindrical counterweight guide posts 132 are fixed vertically to the frame 120 behind the seat 110 at predetermined left and right spacing at their upper and lower ends. The plate-shaped plates of the counterweight 131 are stacked through through holes and supported to move freely up and down on the frame 120.

[0084] Two load transmission mechanisms 1A for the training equipment are freely movable up and down via connecting parts 7 and are rotatably fitted onto two guide posts 140 in the horizontal direction. Handles 160 connected to the handle shaft 10 of the load transmission mechanism 1A are handles for ring-shaped objects held by the user. Each handle 160 can rotate horizontally relative to the load transmission mechanism 1A. Furthermore, the handle shaft 10 can also swing. In the initial state (see...) Figure 10 and Figure 11 With the handles 160 positioned so that the backs of the user's hands are facing outwards from the training equipment 100, each handle 160 is initially positioned higher than the user's arms extended upwards while seated on the seat 111. The user can then lower the handles using the load transmission mechanism 1A of the training equipment. At this time, the user can open their arms outwards from the midline of their chest (see...). Figure 12 and Figure 13 ).

[0085] The pulling component 180 is a rope or wire of the same length, with one end connected to the counterweight 131. The pulling component 180, with one end fixed to the counterweight 131, is wound around the guide pulley 170. The guide pulley 170 converts the downward load applied to the pulling component 180 by the counterweight 131 into an upward load.

[0086] exist Figure 10 and Figure 11 In the initial state shown, the rotation of the load transmission mechanism 1A used for the training equipment is restricted. Conversely, in... Figure 12 and Figure 13In this state, the user can use the load transmission mechanism 1A of the training equipment to rotate to a predetermined angle while resisting the force applied by the load transmission mechanism 1A of the training equipment rotating forward. The force applied by the load transmission mechanism 1A of the training equipment rotating forward is proportional to the load of the load application part 130 and approximately inversely proportional to the vertical position of the load transmission mechanism 1A of the training equipment.

[0087] In addition, such as Figure 14 and Figure 15 As shown, in the training equipment 100, the lifting and lowering actions of the left and right load transmission mechanisms 1A used for the training equipment can also be different to carry out training.

[0088] <How to Use the First Training Equipment>

[0089] The representative usage methods of the training equipment 100 will be explained in turn. First, the weight 131 is set according to the load, taking into account the user's muscle strength, purpose, etc. The user sits facing forward on the seat 111, and the seat 111 is adjusted and fixed at a suitable height so that the soles of the feet are in contact with the ground. In addition, the thigh pressing part 121 is adjusted to a suitable height and fixed so that it is in contact with the upper surface of the user's thigh while sitting on the seat 111.

[0090] Next, the user stands up and aligns the load transmission mechanism 1A of the training equipment with its initial forward-facing position (see reference). Figure 10 , Figure 11 With the backs of your hands facing the left and right sides of the training equipment 100, grasp the handles 160 respectively. Then, while grasping the handles 160 with your hands extending upwards, pull the handles 160 downwards and sit on the seat 111 facing forward.

[0091] Next, the user resists the rotational bias force acting on the grip 160 with a force proportional to the load of the load application part 130, twisting both upper arms outward so that each grip 160 rotates horizontally relative to the load transmission mechanism 1A for the training equipment, with the backs of the hands holding each grip 160 facing forward of the training equipment 100. By adopting this "avoidance action" posture, both the flexor and extensor muscles are "relaxed," thereby relaxing the shoulders and arms. Furthermore, the grip 160 is exerted upward force by the load of the load application part 130, thereby appropriately "stretching" the muscles near the shoulder girdle, etc.

[0092] Next, the user bends their arms against the load application part 130 to "shorten" the muscles, causing the muscles near the shoulder girdle to "reflexively" pull down the handle part 160. At this time, while further adding the "relaxation" and "extension" action of twisting the upper arms outward, the user pulls down the handle part 160 with both hands. Through this outward twisting action of the upper arms, each handle part 160 rotates further outward in the horizontal direction relative to the load transmission mechanism 1A for the training equipment, thereby pulling the weight 131 upward and reducing the load of the initial action of pulling down the arms. In this way, when the muscles are "shortened" by bending the arms and pulling down the handle part 160, by further twisting the upper arms outward, while increasing the "relaxation" and "extension" actions, by creating an appropriate "shortening" opportunity, each muscle group can obtain the opportunity of "relaxation-extension-shortening", so that the movement can be performed in a well-coordinated manner.

[0093] When the user bends their arms and pulls down on the handle 160, they gradually open their arms outward. This causes the load transmission mechanism 1A of the training equipment to resist the forward rotational bias force, and the load transmission mechanism 1A of the training equipment faces outward. Since the forward rotational bias force of the load transmission mechanism 1A of the training equipment is approximately inversely proportional to its position (height), the resistance to opening the arms outward is reduced as the user bends their arms and pulls down on the handle 160. Therefore, when bending their arms and pulling down on the handle 160, by outputting a substantially constant muscle force to open their arms outward, the user can smoothly perform the gradual outward opening of their arms while pulling down on the handle 160, thereby preventing muscle co-contraction.

[0094] Next, after lowering each grip 160 to approximately shoulder height, with the biasing force of the load application 130, twist the arms inward and extend them while closing them inward, and slowly return the back of the hands to the seated position as the grip 160 moves. This completes one training cycle. Then repeat the training cycle as appropriate.

[0095] <Second Training Equipment>

[0096] Figures 16-19 The structure of the second training equipment 200 is shown. The second training equipment 200 is an equipment equipped with the load transmission mechanism 1B for training equipment of the second embodiment or the load transmission mechanism 1C for training equipment of the second embodiment.

[0097] Second training equipment 200 Figures 16 to 19As shown, it includes: a seat 210; a frame 220 supporting the seat 210; a load application part 230 disposed on the frame 220, which can freely adjust the load size; two guide posts 240 on each side, which extend vertically at predetermined intervals in the left and right directions, so that the seat 210 is located at the center of the frame 220; two load transmission mechanisms 1B (1C) for training equipment, which can move freely up and down under the guidance of the left and right guide posts 240; a handle 260 connected to the handle shaft 10 disposed on the two load transmission mechanisms 1B (1C) for training equipment, and which can rotate freely; and a pulling member 280, one end of which is connected to the load application part 230, and the other end of which passes around the guide wheel 270 disposed on the frame 220 and is connected to the load transmission mechanism 1B (1C) for training equipment. In the load transmission mechanism 1B (1C) for training equipment, a load rotating around the axis of the holding part 260 is applied by the load application part 230 connected to the other end of the pulling member 280.

[0098] The seat 210 includes a seat 211 for the user of the training equipment 200 to sit facing the rear (towards the load application section 230), and two seat supports 212 vertically disposed on the lower surface of the seat 211.

[0099] The frame 220 includes: a lower frame 221, with at least four corners resting on the floor; two vertical posts 222, vertically fixed from the rear of the lower frame 221 at a predetermined left-right spacing; and an upper frame 223, supported and fixed to the two vertical posts 222. The frame 220 also includes a seat 210, a load application section 230, left and right guide posts 240, and guide wheels 270. The frame 220 supports a thigh pressing section 225, which prevents the user sitting on the seat 211 from lifting their thighs. This thigh pressing section 225 is designed to allow the user to form a proper arch in their back during training.

[0100] The load application unit 230, which can freely adjust the load size set on the frame 220, includes: a counterweight 231 composed of multiple plate-shaped metal weight components; counterweight guide posts 232 supporting the counterweight 231 to move freely up and down on the frame 220; and a clamp that can freely connect and separate the counterweights 231 from each other (not shown). The load applied to the load application unit 230 is adjusted by increasing or decreasing the number of counterweights 231. A pair of cylindrical counterweight guide posts 232 extend vertically at a predetermined interval between two vertical posts 222, and their upper and lower ends are fixed to the lower frame 221 and the upper frame 223, respectively. The plate-shaped plates of the counterweight 231 are stacked by inserting them through the through holes on both sides of the counterweight guide posts 232, and are supported by the counterweight guide posts 232 to move freely up and down.

[0101] Two load transmission mechanisms 1B (1C) for the training equipment are mounted on two guide posts 240, which are freely movable up and down and freely rotatable in the horizontal direction via a connecting part 7 (its roller 9). Each load transmission mechanism 1B (1C) includes a grip 260, which is a semi-cylindrical object that the user grasps and presses with their palm. Each grip 260 is axially rotatable relative to the load transmission mechanism 1B (1C) for the training equipment. Furthermore, each grip 260 can swing by gripping the shaft 10. Each grip 260 in its initial state (refer to...) Figure 16 and Figure 17 The grips 260 are positioned parallel to the load transmission mechanism 1B (1C) for the training equipment. In the initial state, due to the action of the load application part 230, each grip 260, together with the load transmission mechanism 1B (1C) for the training equipment, is positioned above the shoulder of the user sitting on the seat 211. Furthermore, when the user lowers the grips 260 to their lowest position against the action of the load application part 230, each grip 260 can be positioned near or below the waist of the user sitting on the seat 211.

[0102] The pulling components 280 are ropes or wires of the same length, with one end connected to the counterweight 231. Each pulling component 280, with one end fixed to the counterweight 231, is wound around a guide pulley 270. This guide pulley 270 converts the downward load applied to the pulling components 280 by the counterweight 231 into an upward load.

[0103] <How to use the second training equipment>

[0104] The representative usage methods of the training equipment 200 will be explained in turn. First, the weight 231 is set according to the load, taking into account the user's muscle strength, purpose, etc. The user sits on the seat 211 facing the weight 231, and adjusts and fixes the seat 211 to a suitable height so that the soles of the feet are in contact with the ground. Further, the thigh pressing part 225 is adjusted to a suitable height and fixed so that it contacts the upper surface of the user's thigh while sitting on the seat 211.

[0105] Next, the user stands up, grasps and presses the opposing sides of each grip 260 from above with their palm, and simultaneously presses down on the load transmission mechanism 1B (1C) for the training equipment together with the grip 260, and sits on the seat 211. At this time, the user raises their shoulders, bends their elbows, pulls their forearms slightly inward, and bends their wrists forward from their forearms.

[0106] Next, while maintaining the height position of the grip 260, the user twists their wrist inward against a rotational bias force proportional to the load applied by the load application part 230, and rotates the grip 260 relative to the load transmission mechanism 1B (1C) axis for the training equipment, moving the hand holding the grip 260 from the front direction inward and outward respectively (see...). Figure 18 and Figure 19 ).

[0107] Users such as Figure 18 and 19 By adopting this "avoidance action" posture (position), both the flexor and extensor muscles are "relaxed," thereby relaxing the shoulders, wrists, and back. Furthermore, the grip 260 is also subjected to upward force through the load applied by the load application part 230, thus appropriately "stretching" the back muscles such as the latissimus dorsi. Additionally, since the user rotates the grip 260 along its axis, less force is needed to resist the rotational bias force, allowing the grip 260 to rotate.

[0108] Next, the user moves the load transmission mechanism 1B (1C) for the training equipment to a position that is compatible with... Figure 18 and Figure 19 In the opposite position shown (not illustrated), to moderately "stretch" the back muscles and induce a "reflex," the arms are straightened under the load of the load application part 230, causing the muscles to "shorten" while simultaneously increasing the "relaxation" and "stretching" action of the wrist twisting outwards. This is achieved by pressing down and releasing the grip part 260. Through this outward twisting of the wrist, the grip part 260 rotates in the opposite direction relative to the load transmission mechanism 1B (1C) for the training equipment, thereby reducing the load during the initial pressing action. In this way, when the grip part 260 presses down and causes the muscles to "shorten," by further twisting the wrist outwards, while increasing the "relaxation" and "stretching" actions, and by creating an appropriate "shortening" opportunity, each muscle group can obtain a "relaxation-stretching-shortening" opportunity, thus allowing for well-coordinated movements. Furthermore, when the user extends their arms and presses down on the grip 260, the load transmission mechanism 1B (1C) for the training equipment is guided by the guide post 240 and moves vertically downward together with the grip 260. Therefore, the user can extend their arms and smoothly press down on the grip 260 to prevent muscle contraction.

[0109] After pressing the grip 260 down to waist height, the user grips and presses the grip 260 with their hands, and simultaneously applies upward biasing force due to the load applied by the load application part 230, by twisting the upper arm inward and bending the elbow, slowly returning to the seated position. This completes one training cycle. Then repeat the training cycle as many times as appropriate. Figure 21 and Figure 22An example of a load transmission mechanism 1B (1C) for training equipment with different left and right lifting angles is disclosed. In addition, it can also be configured to lift and lower simultaneously on both sides.

[0110] Summary of Training Equipment

[0111] The aforementioned training equipment 100 and 200 are devices for appropriately training the muscles of the shoulders, arms, and back through initial load training (registered trademark). Initial load training is defined as "training that utilizes changes in the body's position in response to reflexes and the resulting changes in the center of gravity to promote a series of movements such as relaxation-extension-shortening of the agonist muscles while preventing the co-contraction of antagonist muscles." Initial load training is entirely different from final load training, which applies load until the very end, leading to muscle tension (hardening) and increased muscle size. Initial load training requires understanding the overall movement pattern, such as the point of load application, the point and angle of load release, the rhythm, and the continuity of muscle output. Traditional load training suffers from difficulties in maintaining proper movements and postures due to issues such as body balance and localized hardening. However, training equipment 100 or 200, which enables initial load training, can guide training with an ideal series of movements and postures.

[0112] Using the initial load training of training equipment 100 and 200 allows for "intersegmental force transmission from the center (body trunk) to the limbs," that is, relaxing the human muscles with contractile properties without attempting to stretch them, leaving them in a relaxed state, applying appropriate loads to the muscle spindles and tendon organs that are sensory receptors, inducing them to exert the force of shortening muscles after appropriate muscle stretching or passive stretching. By instantaneously and continuously reducing the load, other muscles in the human body, such as the cardiac muscle, which is often referred to as the only muscle that does not contract in sync, can achieve a state of non-co-contraction activity, thereby promoting and developing neuromuscular control.

[0113] Initial load training using training equipment at 100 and 200 rpm utilizes the load on the equipment to induce a muscle reflex, thereby enabling muscles that should be functioning properly to work effectively and improving muscle and nerve function. The load acts as a catalyst, encouraging relaxed muscles to extend and shorten in a timely manner. This training promotes a series of relaxation-extension-shortening movements and prevents co-contraction, thus improving nerve and muscle function and coordination, reducing physical effects such as muscle pain and fatigue, and resulting in soft and elastic muscles with less stress on the muscles and without muscle stiffness. Furthermore, aerobic exercise promotes metabolism, reduces forced increases in heart rate and blood pressure, effectively preventing lifestyle-related diseases such as diabetes and hypertension, promoting the healing of ligament injuries and fractures, and improving nerve and nerve function. It creates beneficial conditions for the body, such as relieving muscle and joint stress and eliminating toxins.

[0114] <How to Use the First Training Equipment>

[0115] Here, the load transmission mechanism 1A for training equipment of the first embodiment is installed on the first training equipment 100, and the user actually uses the first training equipment. Then, the movement of the user's wrist and arm is captured at 0.5-second intervals. Figure 20 , Figure 21 , Figure 22 The photos show the state at the time of the shooting. Each image shows five photos, from A to E.

[0116] exist Figure 20 In the photo, the user has their right hand on the handle connected to the handle shaft of the load transmission mechanism of the training equipment. Due to the load (counterweight load) of the equipment, the load transmission mechanism of the training equipment is in a position that is too high. Figure 20 (A), (B), (C), (D), and (E) sequentially show the horizontal orientation of the front end of the grip shaft of the load transmission mechanism on the training equipment, changing from outward to inward. Initially, the user raises and extends their arm, then gradually bends their arm to pull it closer to the load transmission mechanism of the training equipment. From... Figure 20 Judging from the photos in (C) and 20(D), the grip axis is tilted to the left of the hand facing the paper. Therefore, due to the arrangement of the various instruments, the twisting angle applied to the user's wrist is mitigated by the tilt of the grip axis, thereby achieving the neutralization and conversion of the movement.

[0117] Figure 21 The photo shows something similar to the above. Figure 20 Compared to the position shown, the user again resists the load (counterweight load) of the equipment, pulling down the load transmission mechanism used for the training equipment. According to... Figure 21 A, Figure 21 B. Figure 21 C Figure 21 D and Figure 21 In the sequence of E, the load transmission mechanism for the training equipment descends, and the horizontal orientation becomes longer towards the outside.

[0118] exist Figure 22 In the photo, the user has their right hand on the handle connected to the handle shaft of the load transmission mechanism used for training equipment. The image shows the load transmission mechanism of the training equipment being pulled down by the load (counterweight load) of the equipment. Figure 22 As shown in (A), the back of the user's right hand is facing the body. Figure 22In (A), because the grip shaft of the load transmission mechanism for the training equipment can swing, the grip shaft tilts towards the front of the paper (in front of the user). Then, the load transmission mechanism for the training equipment rises along with the load (counterweight load) of the training equipment, and the user's arm is pulled too high by the aforementioned grip. Figure 22 (B), (C), (D), and (E) show the appearance in that order.

[0119] In the training equipment shown in the diagram, the gripping shaft is swayable; therefore, it can be assumed that even if the position (height on the training equipment) and orientation of the load transmission mechanism used in the training equipment are as follows... Figure 20 , Figure 21 and Figure 22 The changing time shown in the photograph can also reduce the amount of wrist flexion applied to the user's wrist when holding the handle, and reduce the burden on the wrist. In addition, in the first training device 100 shown in the illustrated photograph, in addition to the training device using the load transmission mechanism 1A for training devices of the first embodiment, in the second training device 200 using the load transmission mechanism 1B or 1C for training devices of the second embodiment, it is foreseeable that the amount of wrist flexion applied to the user's wrist when holding the handle will be reduced during the movement of the training device.

[0120] As described above, the load transmission mechanism for training equipment of this embodiment was installed on actual training equipment, and the user verified its operation. As a result, in addition to the rotation of the grip shaft (grip) itself in a conventional load transmission mechanism for training equipment, the shaft itself also oscillates, thereby reducing the torsional load applied to the wrist holding the grip and allowing the user to perform more natural training movements. Therefore, training movements become easier than before, and the series of muscle movements of "relaxation-extension-shortening" becomes smoother.

[0121] <Verification of the load transmission mechanism for training equipment>

[0122] The inventors have developed the above-mentioned load transmission mechanism 1A for training equipment (refer to...). Figure 1 (etc.) and the first training equipment 100 (refer to) Figures 10-15 The user was then trained using the first training device 100 while the gripping shaft 10 was in a swingable state, and the myoelectric potential was measured. Simultaneously, using the limiting plate 5 in the load transmission mechanism 1A of the training device, the user was trained using the first training device 100 while the gripping shaft 10 was not swinging, and the myoelectric potential was measured.

[0123] The results of myoelectric potential measurement are shown in Figure 23 In the chart. Figure 23A is the electromyography curve when the shaft is oscillating. Figure 23 B is the electromyography curve when the holding shaft is not oscillating. Both graphs, from top to bottom, show: serratus anterior, latissimus dorsi, middle deltoid, biceps brachii, triceps brachii, forearm flexors (palmar longus), forearm extensors (wrist flexors and extensors), and Gonio (goniometer).

[0124] When the gripping shaft 10 is in a swingable state, the serratus anterior muscle becomes active (see the solid box in both figures). On the other hand, when the gripping shaft 10 is not swinging, the forearm flexor muscles become active (see the dashed box in both figures). That is, by choosing whether to swing the gripping shaft 10, the muscles to be trained can be adjusted. Therefore, it is possible to flexibly address individual factors such as the user's physical condition, physique, and the muscles they wish to strengthen.

[0125] Figure Labels

[0126] 1A, 1B, and 1C are used for load transmission mechanisms of training equipment.

[0127] 2 frames

[0128] 3-axis opening

[0129] 4. Swinging opening

[0130] 5.5W limiting board

[0131] 5e, 5f claws

[0132] 6 Sliding fixing part

[0133] 7 Connecting parts

[0134] 8 Connecting cylinder section

[0135] 9 rollers

[0136] 10 holding shafts

[0137] 11 First end

[0138] 12 Second end

[0139] 12r spherical part

[0140] 13 holding shaft sprocket

[0141] 14. Swinging Fixed Plate Section

[0142] 15 Transmission Unit

[0143] 16-speed transmission chain

[0144] 20 intermediate shaft section

[0145] 22 Intermediate Shaft Bevel Gear

[0146] 23 Intermediate Shaft Sprockets

[0147] 30 Force-applying shaft section

[0148] 31 Disc Section

[0149] 40 crankshaft section

[0150] 41 Connecting piece

[0151] 42 Crankshaft Bevel Gear

[0152] 50 sliding shaft

[0153] 1S Rotary Transmission Unit

[0154] 1K Crank Mechanism

[0155] 100 and 200 training equipment

[0156] 130, 230 load application section

[0157] 160, 260 control section.

Claims

1. A load transmission mechanism for a training device, characterized by: a frame accommodating: a grip shaft portion, a grip portion for a user to hold being connected to a first end portion of the grip shaft portion and rotating; an intermediate shaft portion rotating in linkage with the rotation of the grip shaft portion; a transmission portion suspended between the grip shaft portion and the intermediate shaft portion and transmitting the mutual rotation of the grip shaft portion and the intermediate shaft portion; a rotation conversion portion provided on a crank shaft portion orthogonal to the intermediate shaft portion and transmitting the rotation of the intermediate shaft portion; a crank shaft portion converting the rotation of the crank shaft portion into up-and-down movement of a slide shaft portion provided at a position parallel to the intermediate shaft portion, the first end portion of the grip shaft portion protruding from a shaft opening portion formed in the frame in a direction orthogonal to the transmission portion, a second end portion of the grip shaft portion opposite to the first end portion being swingably supported by the frame, the first end portion of the grip shaft portion swinging within the shaft opening portion.

2. The load transmission mechanism for a training device according to claim 1, characterized by: the frame accommodating a rotation conversion portion and a crank shaft portion, the rotation conversion portion including: an intermediate shaft bevel gear provided on the intermediate shaft portion; a crank shaft bevel gear provided on the crank shaft portion and meshing with the intermediate shaft bevel gear, the crank shaft portion including: a connecting piece portion rotatably connected to the crank shaft portion with respect to the crank shaft portion; and a slide shaft portion connected to the connecting piece portion and located at a position parallel to the intermediate shaft portion, the rotation of the crank shaft portion being converted into forward-and-backward movement by the connecting piece portion. the frame including a restriction plate restricting the swing of the first end portion of the grip shaft portion within the shaft opening portion. the restriction plate including a claw portion engaging with the grip shaft portion. the claw portion engaging with the grip shaft portion when the restriction plate advances toward the shaft opening portion, and the claw portion disengaging from the grip shaft portion when the restriction plate is retracted from the shaft opening portion.

6. The load transmission mechanism for a training device according to claim 1, characterized by:

3. A load transmission mechanism for a piece of training equipment according to claim 1, characterized in that: the transmission portion being a transmission chain, 4. A load transmission mechanism for a piece of training equipment according to claim 3, characterized in that: the grip shaft portion being provided with a grip shaft chain wheel, 5. A load transmission mechanism for a piece of training equipment according to claim 4, characterized in that: the intermediate shaft portion being provided with an intermediate shaft chain wheel, the transmission chain being suspended between the grip shaft chain wheel and the intermediate shaft chain wheel. a force applying shaft portion applying tension to the transmission portion being provided between the grip shaft portion and the intermediate shaft portion. the force applying shaft portion including a disc portion in contact with the transmission portion. the grip portion being a ring-shaped object. the grip portion being a semi-cylindrical object.

7. A load transmission mechanism for exercise equipment according to claim 1 wherein: a spherical portion being provided on the second end portion of the grip shaft portion.

8. A load transmission mechanism for a piece of training equipment according to claim 7, characterized in that: the slide shaft portion being connected to a load applying portion adjusting the load size of the training device.

9. A load transmission mechanism for exercise equipment according to claim 1 wherein: the frame including a connecting portion for connection to the training device.

10. A load transmission mechanism for exercise equipment according to claim 1, wherein: a load transmission mechanism for a training device according to claim 1.

11. A load transmission mechanism for exercise equipment according to claim 1, wherein: ​ 12. A load transmission mechanism for exercise equipment according to claim 1, wherein: ​ 13. A load transmission mechanism for exercise equipment according to claim 1, wherein: ​ 14. A training apparatus characterized by ​

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