Excercise device

Abstract

This exercise device comprises: a seat having a seating surface; a drive device provided below the seat; a pair of protruding parts that are provided on both the left and right sides of the seat and are enabled to move to a stowed-away position and a protruding position; protruding part-side fulcrums retained by each of the pair of protruding parts; a pair of cord-like parts having one end coupled so as to be able to be wound by the drive device; and a control unit for controlling the drive device so as to control a load applied to the pair of cord-like parts upon winding. One cord-like part of the pair of cord-like parts has a direction of extension switched by the protruding part-side fulcrum retained by one protruding part of the pair of protruding parts. The other cord-like part of the pair of cord-like parts has a direction of extension switched by the protruding part-side fulcrum retained by the other protruding part of the pair of protruding parts. The pair of protruding parts, by moving from the stowed-away position to the protruding position, cause the pair of protruding part-side fulcrums to move to a position away from the seat.

Description

Training equipment

[0001] The present disclosure relates to training devices.

[0002] There are training devices that use a driving force such as an electric motor to apply a load to a user's body. Such training devices require a more compact installation space than training devices that use weights to apply a load to a user's body. For example, in the device disclosed in Patent Document 1, an arm extends from a bench on which a user sits in the longitudinal direction of the bench. An electric motor is provided under the seat of the bench. One end of a wire connected to the electric motor is folded back at the tip of the arm, and the other end of the wire is held by a user sitting on the bench. When the user pulls the wire, tension is applied to the wire from the electric motor, thereby applying a load to the user's body.

[0003] U.S. Patent No. 9,050,486

[0004] The configuration disclosed in Patent Document 1 allows for a load to be applied when pulling a hand away from the body toward the body. Although the movement posture can be varied by changing the posture on the bench, the hand pulling motion is always performed along the center line of the body. Therefore, it is not possible to perform training exercises such as bench presses, which involve moving the hands away from the center line of the body to apply a load to the body.

[0005] Therefore, the present disclosure proposes a training device that is compact and allows users to perform training exercises that apply stress to the body by moving their hands at a position away from the center line of the body.

[0006] A training device according to an embodiment of the present disclosure includes a seat having a seating surface, a drive unit provided below the seat, a pair of extension portions provided on both the left and right sides of the seat and movable between a storage position and an extended position, extension portion-side fulcrums held by each of the pair of extension portions, a pair of string-like portions each having one end connected to the drive unit so that the string-like portions can be wound up, and a control unit that controls the drive unit to control the load applied to the pair of string-like portions by the winding, wherein one of the pair of string-like portions has its extension direction changed by the extension portion-side fulcrum held by one of the pair of extension portions, and the other of the pair of string-like portions has its extension direction changed by the extension portion-side fulcrum held by the other of the pair of extension portions, and the pair of extension portions move from the storage position to the extended position, thereby moving the pair of extension portion-side fulcrums to positions away from the seat.

[0007] 1 is a plan view of the training apparatus according to the first embodiment, showing a state in which the extension portions are stored. FIG. 2 is a front view of the training apparatus according to the first embodiment. FIG. 3 is a left side view of the training apparatus according to the first embodiment. FIG. 4 is a right side view of the training apparatus according to the first embodiment. FIG. 5 is a bottom view of the training apparatus according to the first embodiment. FIG. 6 is a left side view of the training apparatus according to the first embodiment, showing a state in which the front end of the first seat has been moved upward. FIG. 7 is a plan view of the training apparatus according to the first embodiment, showing a state in which the pair of extension portions are in the extended position. FIG. 8 is a front view of the training apparatus according to the first embodiment, showing a state in which the pair of extension portions are in the extended position. FIG. 9 is a left side view of the training apparatus according to the first embodiment, showing a state in which the pair of extension portions are in the extended position. FIG. 10 is a schematic view of an electric motor and a string-like portion according to the first embodiment. FIG. 11 is a left side view of the training apparatus according to the first embodiment, showing a state in which the rod is in a use position. FIG. 12 is a view showing a state in which a bench press is being performed using the training apparatus according to the first embodiment. FIG. 13 is a view showing a state in which an incline press is being performed using the training apparatus according to the first embodiment, showing another example of the position of the movable fulcrum. FIG. 1 is a diagram showing a state in which an incline press is being performed using the training apparatus according to the first embodiment, and showing another example of the position of the movable fulcrum. FIG. 2 is a diagram showing a state in which a lat pulldown is being performed using the training apparatus according to the first embodiment, and showing a first alternative example. FIG. 3 is a diagram showing a state in which a lat pulldown is being performed using the training apparatus according to the first embodiment, and showing a second alternative example. FIG. 4 is a diagram showing a state in which a lat pulldown is being performed using the training apparatus according to the first embodiment, and showing a third alternative example. FIG. 5 is a diagram showing a state in which a lat pulldown is being performed using the training apparatus according to the first embodiment, and showing a third alternative example. FIG. 6 is a diagram showing a state in which a squat is being performed using the training apparatus according to the first embodiment, and showing an alternative example of a first seat position when performing a squat.FIG. 1 is a block diagram showing an example of the functional configuration of a training apparatus according to a first embodiment. FIG. 2 is a perspective view of a training apparatus according to a modified example of the first embodiment, showing a state in which the overhanging portion has been moved to the overhanging position. FIG. 3 is a perspective view of a training apparatus according to a modified example of the first embodiment, showing a state in which the overhanging portion has been moved to the stored position. FIG. 4 is a perspective view of a training apparatus according to a second modified example of the first embodiment, showing a state in which the overhanging portion has been moved to the overhanging position. FIG. 5 is a perspective view of a training apparatus according to a second modified example of the first embodiment, showing a state in which the overhanging portion has been moved to the stored position. FIG. 6 is a perspective view of a training apparatus according to a third modified example. FIG. 7 is a side view of a training apparatus according to the third modified example. FIG. 8 is a perspective view of a training apparatus according to a fourth modified example. FIG. 9 is a diagram showing an example of movement of a second display device. FIG. 10 is a perspective view of a training apparatus according to a fifth modified example. FIG. 11 is a perspective view of a training apparatus according to a sixth modified example. FIG. 12 is a plan view of a training booth.

[0008] DETAILED DESCRIPTION OF THE INVENTION The following describes embodiments of the present technology. The description is provided in the following order. A detailed description of one or more embodiments of the present disclosure is provided below, along with accompanying drawings that explain the principles of the present disclosure. While the present disclosure will be described in connection with such embodiments, the present disclosure is not limited to any embodiment. The scope of the present disclosure is limited only by the claims, and the present disclosure encompasses numerous alternatives, modifications, and equivalents. In order to fully understand the present disclosure, numerous specific details are set forth in the following description. These details are provided for the purpose of example, and the present disclosure may be practiced according to the claims without some or all of these specific details. For clarity, technical materials known in the technical fields related to the present disclosure have not been described in detail so as not to unnecessarily obscure the present disclosure. 1. Exemplary Configuration of Training Apparatus 2. Seat 3. Base Plate 4. Support Portion 5. Drive Unit 6. Extension Portion 7. String Portion 8. Extension Portion Side Fulcrum 9. Caster 10. Rod 11. Rod Side Fulcrum 12. Restriction Portion 13. Display device 14. Types of training 14-1. Bench press 14-2. Incline press 14-3. Lat pulldown 14-4. Squat 15. Examples of functional configuration and control of training device 16. Effects 17. Modified examples of training device 18. Supplementary notes

[0009] <<1. Configuration example of training device>> Fig. 1 is a plan view of a training device according to a first embodiment, showing a state in which the extension portion is stored. Fig. 2 is a front view of the training device according to the first embodiment. The training device 1 includes a seat 2. The seat 2 has a seat surface 21 formed in a shape that has a longitudinal direction and a lateral direction as a whole.

[0010] Here, the directional terms used in the following explanation will be defined based on the seat 2 and its seating surface 21 of the training apparatus 1. One side along the longitudinal direction of the seat 2 is the front, and the other is the rear. In each drawing, the X axis is shown along the front-to-rear direction. The positive direction along the X axis is the front, and the negative direction is the rear.

[0011] The direction from the seat surface 21 toward the back surface 22 of the seat surface 21 is defined as downward, and the direction from the back surface 22 toward the seat surface 21 is defined as upward. Each drawing also shows the Z axis along the up-down direction. The positive direction along the Z axis is upward, and the negative direction is downward.

[0012] The direction perpendicular to the front-rear direction and the up-down direction is defined as the left-right direction. In each drawing, the Y axis is shown along the left-right direction. The positive direction along the Y axis is rightward, and the negative direction is leftward.

[0013] Fig. 3 is a left side view of the training apparatus according to the first embodiment, Fig. 4 is a right side view of the training apparatus according to the first embodiment, and Fig. 5 is a bottom view of the training apparatus according to the first embodiment.

[0014] The training device 1 is a device used for training by a user to apply a load to the body. The training device 1 is used for training by being placed on the floor, which is the support surface, in a position where the vertical direction defined above is aligned with the actual vertical direction. The training device 1 is preferably in the shape of a bench.

[0015] <<2. Seat>> The training device 1 includes a seat. The seat 2 is a member that supports at least a portion of the user's body. The seat 2 has a seating surface 21 formed in a shape that has a longitudinal direction and a lateral direction as a whole. The seat 2 may be a single seat, but it is preferable that the seat 2 has a first seat 23 provided on the front side and a second seat 24 provided on the rear side. In other words, the seat 2 is divided into the first seat 23 provided on the front side and the second seat 24 provided on the rear side.

[0016] In one example of a usage form of the training apparatus 1, the second seat 24 supports the user's buttocks, and the first seat 23 supports the user's back. The first seat 23 is preferably shaped to support the user's back when sitting. The second seat 24 is preferably shaped to allow the user to sit comfortably. The first seat 23 and the second seat 24 may be the same length or size, but it is desirable that the first seat 23 be longer in the front-to-rear direction than the second seat 24. FIG. 6 is a left side view of the training apparatus according to the first embodiment, showing the state in which the front end of the first seat has been moved upward. The first seat 23 and the second seat 24 may be fixed, or at least one of the seats may be rotatable. For example, the first seat 23 may be rotatable around a rotation axis (third rotation axis) 25 provided at the rear end of the first seat 23 and extending in the left-to-right direction. By rotating the first seat 23, the front end of the first seat 23 can be moved upward from the state shown in FIGS. 1 to 4 , allowing the user to freely adjust the first seat 23 to an optimal position based on the type of training. The first seat 23 may also be configured to be able to move downward. For example, the second seat 24 may be rotatable about a rotation axis (fourth rotation axis) 26 provided on the front end of the second seat 24 and extending in the left-right direction. By rotating the second seat 24, the rear end of the second seat 24 can be moved upward from the state shown in FIGS. 1 to 4 . Even if the user changes their body orientation during training, rotating the second seat 24 can provide stable support for the body. The rotation angle of the first seat 23 and / or the second seat 24 may be freely adjusted by the user. Furthermore, the rotation of the first seat 23 and / or the second seat 24 may be motorized, and the rotation angle may be automatically controlled by a control unit.

[0017] If the first seat 23 is rotatable about the rotation axis 25, the angle of the first seat 23 can be changed to perform various training events. If the second seat 24 is rotatable about the rotation axis 26, the angle of the second seat 24 can be adjusted to perform training in a more stable posture. <<3. Bottom Plate>> The training apparatus 1 may include a bottom plate 3. The bottom plate 3 is provided below the seat 2. The bottom plate 3 is a member that comes into contact with the floor surface below the seat 2 when the training apparatus 1 is in use. The bottom plate 3 may be a plate-shaped member provided opposite the back surface 22 of the seat 2, or may be a frame-shaped member made up of a combination of rod-shaped members.

[0018] <<4. Support Section>> The training apparatus 1 may include a support section 4. The support section 4 is fixed to the bottom plate 3 and is a member that supports the seat 2 from below. For example, the support section 4 may have a first support section 41 and a second support section 42. The support section 4 may have any shape that can support the seat 2.

[0019] The first support portion 41 supports the first seat 23. The first support portion 41 is, for example, a rod-shaped member extending vertically between the first seat 23 and the bottom plate 3. The first support portion 41 may have a lower end fixed to the bottom plate 3 or another member provided on the bottom plate 3, and an upper end connected to the rear end portion of the first seat 23. If the first seat 23 is rotatable, the connecting portion between the first seat 23 and the first support portion 41 may serve as the rotation axis 25 that rotatably supports the first seat 23.

[0020] The second support portion 42 is a member that supports the second sheet 24. For example, the second support portion 42 may have a lower end fixed to the bottom plate 3 or another member placed on the bottom plate 3 and an upper end connected to the second sheet 24. The second support portion 42 may be a rod-shaped member similar to the first support portion 41. In the first embodiment, an example is shown in which the drive unit 5 is provided on the bottom plate 3 below the second sheet 24. Therefore, the lower end of the second support portion 42 is fixed to the drive unit 5. If the second sheet 24 is rotatable, the connecting portion between the second sheet 24 and the second support portion 42 may serve as the rotation shaft 26 that rotatably supports the second sheet 24.

[0021] If the first sheet 23 is rotatable, the support section 4 may have an expandable and contractible support section 43. The expandable support section 43 may be a rod-shaped member. The rotation angle of the first sheet 23 may be fixed by the expandable support section 43. For example, as shown in FIG. 6 , the expandable support section 43 is configured by inserting a second rod-shaped member 432 into the inside of a cylindrical first rod-shaped member 431. The length of the expandable support section 43 can be varied by varying the insertion depth of the second rod-shaped member 432 into the first rod-shaped member 431. The expandable support section 43 has a fixing member 433 for fixing the length. The fixing member 433 may be configured to be screwed into a threaded hole formed through the first rod-shaped member 431, protrude inside the first rod-shaped member 431, and be pressed against the second rod-shaped member 432, or may be configured to be inserted into holes formed through the first rod-shaped member 431 and the second rod-shaped member 432. Note that instead of the extendable support section 43, an arc-shaped member centered on the rotation axis 25 may be connected to the first sheet 23. By providing a fixing member that can fix the arc-shaped member at a point through which the arc-shaped member passes when the first sheet 23 rotates around the rotation axis 25, the first sheet 23 can be fixed at a desired rotation angle. If the second sheet 24 is rotatable, an arc-shaped member centered on the rotation axis 26 may be connected to the second sheet 24. By providing a fixing member that can fix the arc-shaped member at the point through which the arc-shaped member passes when rotated around the rotation axis 26, the second sheet 24 can be fixed at the desired rotation angle.

[0022] The telescopic support member 43 has a lower end connected to the bottom plate 3 or a member provided on the bottom plate 3, and an upper end connected to the first seat 23. By fixing the length of the telescopic support member 43 with a fixing member 433, the rotation angle of the first seat 23 around the rotation axis 25 can be fixed. The telescopic support member 43 is not limited to the above-described configuration, as long as it is telescopic and its length can be fixed. If the second seat 24 is rotatable, a telescopic support member that can fix the rotation angle of the second seat may be provided. Note that if the first seat 23 and the second seat 24 are rotatable, the rotation may be motorized.

[0023] <<5. Drive Device>> The training apparatus 1 includes a drive device 5. The drive device 5 is a device for pulling the string-like portion 7, which will be described later. The drive device 5 is provided below the seat 2. For example, it is desirable that the drive device 5 be provided below the second seat 24, i.e., at the rear end portion of the training apparatus 1. If the training apparatus 1 is provided with a bottom plate 3, the drive device 5 may be fixed to the bottom plate 3. The drive device 5 has one or more electric motors 52 inside the housing 51 for pulling the string-like portion 7. In this embodiment, an example is shown in which two electric motors 52 are provided inside the housing 51. The device that the drive device 5 has for pulling the string-like portion 7 is not limited to the electric motor 52.

[0024] <<6. Extensions>> The training device 1 includes extensions 6. As shown in Fig. 1, a center line C of the seat 2 is defined, which extends in the front-to-rear direction when viewed in the up-down direction. The center line C can also be described as a line that divides the seat 2 symmetrically. The pair of extensions 6 are provided on both the left and right sides of the center line C, and are members that are movable between a stored position and an extended position. Figs. 1 to 5 show the pair of extensions 6 in the stored position.

[0025] The pair of overhanging portions 6 may have any shape as long as they can be stored below the seat 2 in the storage position. For example, they may be plate-shaped members. It is desirable that the lower ends of the pair of overhanging portions 6 are connected to the bottom plate 3. The pair of overhanging portions 6 and the bottom plate 3 are rotatably connected around a rotation axis (first rotation axis) 63 extending in the front-to-rear direction, thereby allowing them to move between the storage position and the overhanging position. The overhanging portions 6 may be configured to be foldable. For example, the upper end side of the overhanging portion 6 may be configured to be rotatable around another rotation axis parallel to the rotation axis 63, thereby forming a two-stage folding type.

[0026] Fig. 7 is a plan view of the training device according to the first embodiment, showing a pair of extensions in the extended position. Fig. 8 is a front view of the training device according to the first embodiment, showing a pair of extensions in the extended position. Fig. 9 is a left side view of the training device according to the first embodiment, showing a pair of extensions in the extended position. Note that the left side view shown in Fig. 6 also shows a pair of extensions 6 in the extended position.

[0027] When the pair of projections 6 are in the stored position, they move to the extended position by rotating so that their upper ends move in a direction away from the center line C of the seat 2. Of the outer surfaces of the pair of projections 6, the outer surfaces 64 that face outward in the stored position become the surfaces that come into contact with the placement surface (floor surface) on which the training apparatus 1 is placed in the extended position. The position of the projections 6 may be fixed to the extended position by metal fittings 68. In the extended position, the pair of projections 6 function as members that support the training apparatus 1 together with the base plate 3.

[0028] The overhanging portion 6 may be formed with a string passage 65 through which a string-like portion 7 (described later) passes. The string passage 65 may be, for example, a through-hole or a groove formed in the overhanging portion 6. The overhanging portion 6 may not be formed with a string passage 65, and the string-like portion 7 may pass along the outer periphery of the overhanging portion 6, or the string-like portion 7 may be formed to pass over the overhanging portion 6. The overhanging portion 6 may be provided with a plurality of fulcrum attachment / detachment portions 66 to which a movable fulcrum (described later) can be attached. The plurality of fulcrum attachment / detachment portions 66 are provided in a row in the front and rear along the edge that is the upper end in the storage position, i.e., the edge that is the left and right end in the overhanging position. Alternatively, a rail that holds the movable fulcrum (described later) so that it can slide back and forth may be provided.

[0029] When training is not being performed, the extension 6 can be placed in the storage position, allowing the extension 6 and associated parts to be stored below the seat 2. This allows the training apparatus 1 to take up less space.

[0030] The overhanging portion 6 functions as a member that supports the training apparatus 1 together with the base plate 3 in the extended position. Because the overhanging portion 6 is provided so as to extend left and right from the bottom plate 3 in the extended position, the area of ​​the member that supports the training apparatus 1 is increased, making the training apparatus 1 less likely to tip over and increasing its stability compared to when it is supported by the bottom plate 3 alone. Because the overhanging portion 6 makes it less likely for the training apparatus 1 to tip over, the bottom plate 3 may be formed from a frame-shaped member rather than a plate-shaped member. If the overhanging portion 6 is foldable, the overhanging portion 6 can be spread outward further to increase the area of ​​the member that supports the training apparatus 1, thereby further improving the stability of the training apparatus 1.

[0031] <<7. String-like portion>> The training device 1 includes a string-like portion 7. FIG. 10 is a diagram schematically showing the electric motor and the string-like portion in the first embodiment. The string-like portion 7 is a string-like member. One end of the string-like portion 7 is connected to the output shaft 53 of the electric motor 52 of the drive device 5. When the electric motor 52 is driven, the output shaft 53 rotates, causing the string-like portion 7 to be wound up or unwound. In other words, it is possible to apply torque to the string-like portion 7 using the driving force of the electric motor 52.

[0032] A grip part 71 that can be gripped by a user of the training device 1 may be attached to the other end of the string part 7. When the user pulls the grip part 71, the motor 52 applies torque in the direction of winding up the string part 7, thereby applying a load to the user's body.

[0033] The grip portion 71 may be provided with an operation portion 711. The operation portion 711 may be provided so that the user can operate it while gripping the grip portion 71. When the operation portion 711 is operated, an operation signal indicating that the operation portion 711 has been operated is transmitted to a control portion, which will be described later. The operation signal may be transmitted via a signal line provided along the string portion 7, or may be transmitted wirelessly. The operation signal may include a signal to apply a load to the string portion 7, a signal to stop the load, or a signal to instruct increasing or decreasing the load.

[0034] The gripping portion 71 provided at the other end of the string-like portion 7 is provided with an operating portion 711 that transmits a signal when operated, so that the user can operate the operating portion 711 while in the training position to transmit a signal to the control portion, etc., described below.

[0035] As described above, the training apparatus 1 according to the first embodiment shows an example in which the drive device 5 has two electric motors 52. The training apparatus 1 according to the first embodiment shows an example in which a pair of string-like portions 7 is provided. Each of the pair of string-like portions 7 is connected to the output shaft 53 of a different electric motor 52. One of the pair of string-like portions 7 extends toward the right of the training apparatus 1, and the other string-like portion 7 extends toward the left of the training apparatus 1. Note that the number of string-like portions 7 is not limited to the pair shown in the example, i.e., two, but three or more may be provided.

[0036] <<8. Extension-Side Fulcrum>> The training device 1 may be provided with an extension-side fulcrum 8. The extension-side fulcrum 8 has a mechanism for changing the direction of the string-like portion 7 at a predetermined position. The extension-side fulcrum 8 is preferably configured to have a pair of fixed fulcrums 81 and a pair of movable fulcrums 82. The pair of fixed fulcrums 81 may be provided at both the left and right ends of the extension 6 in the extension position. For example, the fixed fulcrums 81 are provided at locations that become the ends of the string passage portion 65 formed on the extension 6. In the extension 6 provided on the right side, the fixed fulcrum 81 is provided at a location that becomes the right end of the string passage portion 65. In the extension 6 provided on the left side, the fixed fulcrum 81 is provided at a location that becomes the left end of the string passage portion 65.

[0037] The fixed fulcrum 81 may be provided with a first pulley 811 and a second pulley 812 as a mechanism for changing the direction of the string-like portion 7. The first pulley 811 is provided rotatably about an axis of rotation extending vertically at the extended position. The first pulley 811 changes the direction of the string-like portion 7, which extends laterally from the drive device 5 through the string passage 65, to the forward direction.

[0038] The second pulley 812 is provided forward of the first pulley 811 and is rotatable about an axis of rotation extending left and right in the extended position. The second pulley 812 changes the direction of the string-like portion 7, which extends forward via the first pulley 811, to upward or diagonally upward. Note that the second pulley 812 may not be used depending on the training event performed using the training device 1.

[0039] The movable fulcrum 82 is detachably attached to the fulcrum attachment / detachment part 66 of the overhanging part 6. As described above, the overhanging part 6 is provided with a plurality of fulcrum attachment / detachment parts 66 arranged in the front-to-rear direction. Therefore, by changing the fulcrum attachment / detachment part 66 to be attached, the front-to-rear position of the movable fulcrum 82 can be changed. If a rail is provided on the overhanging part 6, the movable fulcrum 82 may be held on the rail. By sliding the movable fulcrum 82 on the rail, the degree of freedom in selecting the front-to-rear position of the movable fulcrum 82 is improved.

[0040] The movable fulcrum 82 may have a third pulley 821 as a mechanism for changing the direction of the string-like portion 7. The third pulley 821 is rotatable around a rotation axis extending in the left-right direction when in the extended position. The third pulley 821 changes the direction of the string-like portion 7, which extends forward via the first pulley 811, upward or diagonally upward. The rotation axis of the third pulley 821 may also be configured to tilt within the Y-Z plane, changing the extension direction of the string-like portion 7 toward or away from the central axis C. The third pulley 821 may not be used depending on the training event performed using the training apparatus 1. For example, the third pulley 821 is not used in training events in which the extension direction of the string-like portion 7 is changed by the second pulley 812. On the other hand, the second pulley 812 is not used in training events in which the direction in which the string-like portion 7 extends is changed by the third pulley 821. Although the example in which the extension-side fulcrum 8 has one or more pulleys to change the direction in which the string-like portion 7 extends has been shown, it may also be a member that changes the direction in which the string-like portion 7 extends without using a pulley. For example, it may be a member that simply comes into contact with the string-like portion 7 to change the direction of the string-like portion 7, although this member has a higher frictional force than a pulley. Also, only one of the fixed fulcrum 81 and the movable fulcrum 82 may be provided.

[0041] When training is not being performed, the extension 6 can be placed in the storage position, allowing the fixed fulcrum 81 and the movable fulcrum 82 together with the extension 6 to be stored below the seat 2. This allows the training device 1 to take up less space.

[0042] By providing the fixed fulcrum 81 and the movable fulcrum 82 at the upper end of the extension portion 6, the fixed fulcrum 81 and the movable fulcrum 82 can be moved to the left and right to the maximum extent when the extension portion 6 is moved to the extension position.

[0043] As described above, the protruding portion 6 is formed with a plurality of fulcrum attachment / detachment portions 66 arranged in the front-rear direction to hold the movable fulcrums 82. By varying the position of the movable fulcrums 82, it is possible to change the angle of pulling during training in which the string-like portion 7 is pulled via the movable fulcrums 82. This allows the position of the movable fulcrums 82 to be changed depending on the user's body type, preferences, and type of training, thereby making training more comfortable and efficient.

[0044] As described above, if rails that hold the movable fulcrum 82 so that it can slide back and forth are provided on the overhanging portion 6, holding it with the rails increases the degree of freedom in the position of the movable fulcrum 82. This makes it possible to more precisely adjust the position of the movable fulcrum 82 according to the user's body type, preferences, and type of training, thereby making training even more comfortable and efficient.

[0045] <<9. Casters>> The training apparatus 1 may be equipped with casters 9. The casters 9 are wheels used to roll and move the training apparatus 1. If the casters 9 are provided on the outer edge of the bottom plate, the training apparatus 1 can be moved using the casters 9 by tilting the training apparatus 1. For example, the casters 9 may be provided on the rear end of the bottom plate 3. In this case, the casters 9 rotate around axes of rotation extending in the left-right direction. The first embodiment illustrates an example in which two casters 9 are provided side by side in the left-right direction with a gap between them. When the casters 9 are provided on the rear end of the bottom plate 3, a grip portion 15 may be provided on the front end of the bottom plate 3. The grip portion 15 is a portion that a user grasps to lift the front end of the training apparatus 1. For example, the grip portion 15 may be formed by fixing both ends of a rod-shaped member bent into a U-shape to the front end of the bottom plate 3. Furthermore, the training apparatus 1 may be stored with the side on which the casters 9 are provided facing the bottom, i.e., with the front-to-back direction vertical.

[0046] If casters 9 are provided at the rear end of the bottom plate 3 and a grip 15 is provided at the front end, when a user grasps the grip 15 and lifts the front end of the bottom plate 3, the casters at the rear end will touch the ground, allowing the training device 1 to be rolled and moved. This makes it easier to transport the training device 1. Furthermore, if the drive device 5, which is a heavy object, is provided at the rear end of the bottom plate 3 rather than at the front end that is lifted during transport, it becomes easier to lift the front end of the bottom plate 3 during transport, making it even easier to transport the training device 1.

[0047] <<10. Rods>> The training device 1 may include rods 10. The pair of rods 10 are components for varying the positions of rod-side fulcrums 103 (described later). While the protruding portions 6 provide training exercises that apply load to the user lower than the user's center of gravity, i.e., toward the ground, the rods 10 are provided to provide training exercises that apply load to the user higher than or at the same position as the user's center of gravity. Examples of training exercises that apply load to the user lower than the user's center of gravity, i.e., toward the ground, include bench presses, incline presses, and squats. Examples of training exercises that apply load to the user higher than or at the same position as the user's center of gravity include lat pulldowns. The usage patterns for each training exercise will be described in detail later. However, this does not exclude the use of the rods 10 to apply load to a position lower than the user's center of gravity.

[0048] The pair of rods 10 may be rod-shaped members. The pair of rods 10 may be joined to the seat 2. When the pair of rods 10 are joined to the seat 2, the pair of rods 10 also move in accordance with the rotation of the seat 2. The pair of rods 10 are provided on both sides of the center line C of the seat 2. The pair of rods 10 are movable between an unused position and an used position. FIGS. 1 to 9 show the rods 10 in the unused position. The pair of rods 10 may be stored below the seat 2 in the unused position. For example, the rods 10 may be located between the front and rear ends of the seat 2, and it is preferable that the rods 10 be located between the front and rear ends of the first seat 23. The pair of rods 10 are rotatable about a rotation shaft 102 provided at the front end and extending vertically. By rotating about the rotation shaft 102, the rods 10 move between the unused position and the used position.

[0049] FIG. 11 is a left side view of the training device 1 according to the first embodiment, showing the rod in the use position. One end 101 of the rod 10, which is the rear end in the non-use position, protrudes forward beyond the front end of the first seat 23 in the use position. Furthermore, if the rod 10 is connected to the first seat 23, it rotates together with the first seat 23 around the rotation axis 25. The rod 10 may be provided with a rod-side fulcrum attachment / detachment part to which a rod-side fulcrum, described below, can be attached / detached. The rod 10 may be provided with multiple rod-side fulcrum attachment / detachment parts. The rod 10 may be provided with a rod-side rail that slidably holds the rod-side fulcrum along the extension direction of the rod 10.

[0050] In the training device 1 according to the first embodiment, the rod-side fulcrum 103 is moved by rotating the rod-shaped rod 10 around the rotation axis 102. However, this is not limiting. For example, in addition to the rotation axis 102, another rotation axis may be provided at the base of the rod 10 fixed to the seat 2, allowing the rod 10 to move with multiple degrees of freedom. Furthermore, the rod 10 may not be a rod-shaped member, but may instead be configured to allow the rod-side fulcrum 103 to move with a higher degree of freedom. For example, the rod 10 may be configured as a six-axis manipulator. The rod 10 may have at least one or more rod-shaped members and a base joint with one or more degrees of freedom. At least the height, length, distance, and angle in the XYZ space may be freely adjustable. If the movement of the rod 10 is motorized, the movement may be controlled by a control unit, as described below. The rod 10 may be extendable. The rod 10 may have multiple joints so that the position of the rod-side fulcrum 103 can be varied. The rod 10 may be configured such that the base joined to the sheet 2 serves as a joint with multiple degrees of freedom, allowing the position of the rod-side fulcrum 103 to vary in various ways.

[0051] <<11. Rod-Side Fulcrum>> A rod-side fulcrum 103 may be provided at one end 101 of the rod 10. The rod-side fulcrum 103 has a mechanism for changing the direction of the string-like portion 7 at a predetermined position. The rod-side fulcrum 103 has a pulley 104 as a mechanism for changing the direction of the string-like portion 7. The pulley 104 is provided rotatable about an axis of rotation extending parallel to the left-right direction when the seat surface 21 of the first seat 23 is horizontal. The pulley 104 may change the direction of the string-like portion 7 extending via the second pulley 812 of the fixed fulcrum 81 or the third pulley 821 of the movable fulcrum 82. The pulley 104 may change the direction of the string-like portion 7 extending from the electric motor 52 without passing via the second pulley 812 of the fixed fulcrum 81 or the third pulley 821 of the movable fulcrum 82. If the rod-side fulcrum 103 is detachable from a rod-side fulcrum attachment / detachment section provided on the rod 10, the movable fulcrum 82 attached to the overhanging section 6 may be configured to be reattached to the rod 10 for use. In this case, the movable fulcrum 82 functions as the rod-side fulcrum 103. This makes it possible to reduce the number of parts in the training apparatus 1. Even if the rod 10 is provided with a rod-side rail, the movable fulcrum 82 may be configured to be reattached to the rod 10 for use.

[0052] Although the rod-side fulcrum 103 has one or more pulleys to change the direction in which the string-like portion 7 extends, it may also be a member that changes the direction in which the string-like portion 7 extends without using a pulley. For example, it may be a member that simply comes into contact with the string-like portion 7 to change the direction of the string-like portion 7, although this member has a greater frictional force than a pulley.

[0053] <<12. Restricting Units>> The training device 1 may include a pair of restricting units 11. The restricting units 11 are members for fixing the extension units 6 in the extended position. The pair of restricting units 11 may be plate-shaped members provided on the inside of the extension units 6 in the stored position. The pair of restricting units 11 are provided on both sides of the center line C. The restricting units 11 are movable between a non-restricting position and a restricting position. The restricting units 11 in the non-restricting position are indicated by dashed lines in FIG. 8.

[0054] The restricting portions 11 are rotatable about a rotation axis (second rotation axis) 111 that extends vertically at the rear end of the restricting portion 11. The restricting portions 11 move between a non-restricting position and a restricting position by rotating about the rotation axis 111. As shown in FIG. 8 , the pair of restricting portions 11 move from the non-restricting position to the restricting position by rotating their front ends apart to the left and right. In the restricting position, the lower ends of the restricting portions 11 abut against the overhanging portions 6. In the restricting position, the restricting portions 11 abut against the overhanging portions 6, restricting the overhanging portions 6 from moving to the stored position.

[0055] When in the restricted position, the restricting portion 11 abuts against a protrusion 67 formed on the protruding portion 6, and the rotation that would move the front end further rearward is restricted. The protrusion 67 functions as a locking mechanism that restricts the movement of the restricting portion 11.

[0056] The restricting portion 11 in the restricting position abuts against the extension portion 6 in the extended position, thereby restricting the extension portion 6 from moving to the stored position. In this way, the restricting portion 11 functions as a locking mechanism that restricts the extension portion 6 from moving to the stored position, and thus the extension portion 6 can be more reliably restricted from moving to the stored position compared to when it is fixed only by the metal fittings 68. Therefore, the extension portion 6 can more reliably support the training apparatus 1. Note that if the restricting portion 11 is provided, the metal fittings 68 can be omitted. Note that if the metal fittings 68 are provided, the restricting portion 11 can be omitted.

[0057] <<13. Display Device>> The training apparatus 1 may be equipped with a display device 12. The display device 12 is a device that presents information to the user using images and videos. The display device 12 has a display unit 121. The display unit 121 displays images and videos to present information to the user. The display unit 121 is, for example, a liquid crystal display or an organic electroluminescent display (OLED). The display unit 121 may be a touch panel type. If the display unit 121 is a touch panel type, the display unit 121 can function as an input unit.

[0058] The display device 12 may have an arm 122. The arm 122 may extend from the front end of the first seat 23 and support the display unit 121. That is, the display unit 121 may be connected to the seat 2 via the arm 122. The connection angle between the arm 122 and the display unit 121 and the seat 2 may be variable. If the connection angle between the arm 122 and the display unit 121 and the seat 2 are variable, the position of the display unit 121 can be moved around the front end of the seat 2. The arm 122 itself may be variable. The display unit 121 may be configured as a touch panel type and have a function as an input device. The display unit 121 may be external.

[0059] A plurality of display units 121 may be provided. For example, the seat 2 may include a display unit 121 coupled to the seat 2 and an external display unit 121. For example, at least one display unit 121 may be coupled to the seat 2, and at least one display unit may be attached to a stand provided at a position away from the seat 2. In this case, the user can check the display unit 121 attached to the stand at a position away from the seat 2 and perform input operations on the display unit 121, and can check the display unit 121 coupled to the seat 2 and perform input operations on the display unit 121 while sitting in the seat 2.

[0060] The display device 12 may be a projector or VR / AR (Virtual Reality / Augmented Reality) goggles.

[0061] The display unit 121 is provided so that its position can be changed by the arm 122, so that the display unit 121 can be moved to a position that is easy for the user to see during training.

[0062] <<14. Types of Training>> Next, an example of a training type that can be performed using the training device 1 will be described. Note that when training, the extension portion 6 is fixed in the extension position. Furthermore, this is merely an example of a training type that can be performed using the training device 1, and the training types that can be performed are not limited to those exemplified below. Furthermore, in the various types of training described below, it is desirable to place the display unit 121 in a position that is visible to the user.

[0063] <<14-1. Bench Press>> Figure 12 is a diagram showing a state in which a bench press is performed using the training apparatus according to embodiment 1. As shown in Figure 12, when performing a bench press, the other end of the string-like portion 7, to which the grip portion 71 is attached, is extended upward via the first pulley 811 and the third pulley 821.

[0064] The user lies on their back on the seat surface 21 of the seat 2, grasps the grip portion 71, and pulls the string portion 7 upward with each of their left and right arms. At this time, the drive device 5 applies torque in the direction of winding up the string portion 7, thereby applying a load to the user's body.

[0065] <<14-2. Incline Press>> Figure 13 is a diagram showing a state in which an incline press is performed using the training apparatus according to the first embodiment. Figure 14 is a diagram showing a state in which an incline press is performed using the training apparatus according to the first embodiment, and is a diagram showing another example of the position of the movable fulcrum. Figure 15 is a diagram showing a state in which an incline press is performed using the training apparatus according to the first embodiment, and is a diagram showing another example of the position of the movable fulcrum.

[0066] As shown in Figures 13 to 15, when performing an incline press, the first seat 23 is rotated around the rotation axis 25 to move the front end of the first seat 23 upward, tilting the seat surface 21. The other end of the string 7, to which the grip 71 is attached, is extended diagonally upward via the first pulley 811 and the third pulley 821. The user sits on the second seat 24 and places their back against the seat surface of the first seat 23. The user grasps the grip 71 and pulls the string 7 diagonally upward with each arm. At this time, the drive unit 5 applies torque in the direction of winding the string 7, thereby applying a load to the user's body. The rotation angle of the first seat 23 can be adjusted as needed to suit the user's preferences, body type, muscle strength, etc.

[0067] 13 to 15, by varying the front-to-rear position of the movable fulcrum 82, it is possible to vary the direction in which the user lifts their arms and apply a load to different parts of the body, even if the angle of the first seat 23 is the same. In other words, it is possible to apply a load to various parts of the body by simply varying the front-to-rear position of the movable fulcrum 82.

[0068] In the incline press, the rear end of the second seat 24 may be moved upward to tilt the seat surface 21. By tilting the seat surface 21 of the second seat 24 on which the user sits, it becomes possible to stabilize the user's posture during training.

[0069] <<14-3. Lat Pulldown>> Figure 16 is a diagram showing the state in which lat pulldown is performed using the training device according to the first embodiment. As shown in Figure 16, when performing lat pulldown, the first seat 23 is rotated around the rotation axis 25 so that the front end of the first seat 23 moves upward, tilting the seat surface 21. The rod 10 is also rotated to move to the use position. Because the first seat 23 is rotated, one end 101 of the rod 10 is positioned diagonally above the front end of the first seat 23. The other end of the string-like portion 7, to which the grip portion 71 is attached, is extended downward via the first pulley 811 and the second pulley 812 of the fixed fulcrum 81 and the pulley 104 of the rod-side fulcrum 103.

[0070] The user grasps the gripping portion 71 and pulls the string portion 7 downward with each of their left and right arms. At this time, the drive device 5 applies torque in the direction of winding up the string portion 7, thereby applying a load to the user's body. The user can stabilize their posture by pressing the soles of their feet against the restricting portion 11.

[0071] Figure 17 is a diagram showing a state in which a lat pulldown is being performed using the training device according to the first embodiment, showing a first alternative example. As shown in Figure 17, a user can perform lat pulldowns while sitting on the second seat 24. The rotation angle of the first seat 23 can be changed as needed to suit the user's preferences, body type, muscle strength, etc. Leg restraints that contact the user's legs (thighs) from above may be provided to prevent the user's body from floating when performing lat pulldowns.

[0072] 18 is a diagram showing a second alternative example of a state in which lat pulldown exercises are performed using the training apparatus according to the first embodiment. As shown in FIG. 18, an add-on auxiliary seat 27 may be placed on the opposite side of the second seat 23 from the first seat 23, and the user may perform lat pulldown exercises while sitting on the add-on auxiliary seat 27. Leg pressers 28 may be provided to contact the user's legs (thighs) from above to prevent the user's body from floating when performing lat pulldown exercises.

[0073] 19 is a diagram showing a state in which lat pulldown exercises are performed using the training device according to the first embodiment, showing a third alternative example. As shown in FIG. 19, a cushioned cushion sheet 29 may be placed on the opposite side of the second seat 23 from the first seat 23, and the lat pulldown exercise may be performed with the knees bent on the cushion sheet 29. Because the cushion sheet 29 has cushioning properties, training can be performed without pain in the knees.

[0074] Fig. 20 is a diagram showing a state in which a lat pulldown is being performed using the training apparatus according to the first embodiment, showing a third alternative example. As shown in Fig. 18, the user may perform a lat pulldown while sitting on the second seat 24 with their back to the first seat 23. In this case, the rotation angle of the first seat 23 may be made larger than in the alternative example shown in Fig. 17, and the rod-side fulcrum 103 may be positioned diagonally upward and slightly forward of the user.

[0075] <<14-4. Squats>> Figure 21 is a diagram showing a state in which squats are performed using the training device according to the first embodiment. As shown in Figure 21, when performing squats, the first seat 23 is rotated around the rotation axis 25 so that the front end of the first seat 23 moves upward. Rotating the first seat 23 by 90 degrees or more ensures a space in front of the bottom plate 3 where squats can be performed. The other ends of the string-like portions 7 are extended upward via the first pulley 811 of the fixed fulcrum 81 and the third pulley 821 of the movable fulcrum 82. The other ends of the pair of string-like portions 7 are attached to a single bar 72.

[0076] The user bends over and places the bar 72 on their shoulders, then stands up, pulling the string 7 upward along with the bar 72. At this time, the drive device 5 applies torque in the direction of winding the string 7, thereby applying a load to the user's body. It is also possible to perform squats by simply pulling up the grip 71 without using the bar 72. It is also possible to perform deadlifts with the training device in the state shown in FIG. 21. The bar 72 may also be used instead of the grip 71 in the bench press and lat pulldown described above.

[0077] Figure 22 shows another example of the position of the first seat when performing squats. As shown in Figure 22, the first seat 23 may be configured to rotate horizontally (rotate within the X-Y plane) to ensure space for performing squats. In this case, the training apparatus 1 is provided with a rotation axis that extends in the Z-axis direction and allows the first seat 23 to rotate horizontally.

[0078] In the various training methods described above, the training type is changed depending on whether the pair of string-like portions 7 pass through the fixed fulcrum 81 and movable fulcrum 82 or through the rod-side fulcrum 103. However, a pair of string-like portions passing through the fixed fulcrum 81 and movable fulcrum 82 and a pair of string-like portions passing through the rod-side fulcrum 103 may be provided separately. In this case, for example, the drive unit 5 may be configured to be able to switch the string-like portion that applies the load using a clutch or the like. Alternatively, the drive unit 5 may be configured to have the same number of electric motors 52 as the number of string-like portions, and torque may be applied to each of the string-like portions by a different electric motor 52.

[0079] <<15. Examples of Functional Configuration and Control of Training Apparatus>> The training apparatus 1 may include a training system. FIG. 23 is a block diagram showing an example of the functional configuration of a training system included in the training apparatus according to the first embodiment. The training system 301 includes a control unit 13 and a storage unit 14. The control unit 13 controls the operation of the training apparatus 1. The storage unit 14 stores various information. The control unit 13 may be a computing means such as an arithmetic unit, a microprocessor, a microcomputer, a CPU (Central Processing Unit), or a DSP (Digital Signal Processor). The memory 92 may be a storage device such as a RAM (Random Access Memory), a ROM (Read Only Memory), a flash memory, an EPROM (Erasable Programmable Read Only Memory), or an EEPROM (registered trademark).

[0080] The control unit 13 controls the electric motor 52 of the drive device 5. Specifically, when training begins, the control unit 13 controls the electric motor 52 so that a specified torque is applied to the string 7. For example, the control unit 13 may determine that training has started when a user in a training start position operates an operation unit 711 provided on the grip unit 71. The control unit 13 can determine that the operation unit 711 has been operated by receiving a signal indicating that the operation unit 711 has been operated. Note that the operation unit 711 may be provided not only on the grip unit 71 but also on the bottom plate 3. The operation unit 711 provided on the bottom plate 3 can be operated by the user with their feet. Furthermore, in a training event that begins with the arms bent, such as bench press, if the amount of winding of the string 7 by the electric motor 52 becomes greater than at the start, the control unit 13 may determine that the user's posture is in a dangerous state and stop the electric motor 52.

[0081] The training system 301 may include an input unit 16. The input unit 16 is a device that can be operated by a user to input information. For example, if the display unit 121 is a touch panel display, the display unit 121 may serve as the input unit 16, or the display unit 121 may be provided separately. The control unit 13 may control the electric motor 52 based on information input from the input unit 16. For example, the control unit 13 may control the electric motor 52 so that a torque specified through the input unit 16 is applied to the string-like portion 7. The input unit 16 may be a microphone that can input information by voice. For example, a microphone may be provided in the display device 12 and serve as the input unit 16.

[0082] The training system 301 may include an image sensor 17. The image sensor 17 may be provided in the display unit 121. Examples of the image sensor 17 include an RGB sensor and a Time of Flight (ToF) sensor. The image sensor 17 acquires posture information related to the user's posture by observing the user during training and transmits the acquired information to the control unit 13. The control unit 13 may display various information on the display unit 121 according to the user's posture information acquired through the image sensor 17. For example, the control unit 13 may display an ideal training form and the user's training form superimposed on each other to prompt the user to correct their training form. The control unit 13 may also stop the electric motor 52 based on the acquired user's posture information. If the image sensor stops the electric motor 52 when it determines that the user's posture is in a dangerous state, the image sensor functions as a safety device. The user's emotions may also be estimated using information captured by the image sensor 17. If the display unit 121 having the image sensor 17 is fixed to a stand provided at a position away from the seat 2, it is possible to measure body shape and estimate posture based on the standing posture of the user standing in front of the display unit 121. If the display unit 121 having the image sensor 17 is connected to the seat 2, it is possible to measure the posture of the user during training.

[0083] The training system 301 may include a pressure sensor 18. The pressure sensor 18 transmits the acquired pressure information to the control unit 13.

[0084] The pressure sensor 18 may be provided, for example, on the seat 2. The control unit 13 may determine the user's posture based on the distribution of pressure applied to the seat 2. If the pressure distribution differs from the pressure distribution obtained when training using an ideal training form, the control unit 13 may prompt the user to correct their posture. For example, the display unit 121 may display information indicating which part of the seat 2 to apply pressure to in order to correct their posture. In the training device 1 according to the first embodiment, the display unit 121 is provided near the front end of the first seat 23, making it easy to position the display unit 121 in a position that is easily visible to the user regardless of the type of training. This allows the user to more reliably recognize information displayed on the display unit 121 that prompts them to correct their posture during training.

[0085] The pressure sensor 18 may be provided in the grip portion 71. The control unit 13 may estimate the load applied to the user based on the pressure applied to the grip portion 71, and control the electric motor 52 based on the estimated load. The pressure sensor 18 may be provided in the first pulley 811, the second pulley 712, and the third pulley 821 of the extension portion-side fulcrum 8, and the pulley 104 of the rod-side fulcrum 103. The control unit 13 may estimate the load applied to the user based on the pressure applied to the first pulley 811, the second pulley 712, the third pulley 821, and the pulley 104, and control the electric motor 52 based on the estimated load.

[0086] The storage unit 14 may store user information such as an ID, height, and weight for each user in association with the user. The user information may include loads applied during past training sessions. The control unit 13 may adjust the load applied by the motor 52 based on the user information.

[0087] The user information may include, for example, dietary information indicating the contents of meals the user has eaten in the past. The control unit 13 may calculate the user's calorie intake and other information from the dietary information, and display recommended training types and their intensities on the display unit 121. Furthermore, at the end of training, the control unit 13 may display on the display unit 121 information about nutrients that are lacking and meal menus suitable for consuming those nutrients. The user information may also include 3D scan data of the user's body shape and sleep data acquired by the image sensor 17. By analyzing the user information, causal inference may be used to infer what attributes a person has and what type of training or behavior has led to such effects, and the user may be encouraged to perform personalized training.

[0088] The storage unit 14 may store the angle of the first seat 23, the position of the movable fulcrum 82, the position of the rod 10, etc., that are suited to each training type. If the angle of the first seat 23, the position of the movable fulcrum 82, the position of the rod 10, etc. can be driven by a driving force such as an electric motor, the control unit 13 may automatically move the angle of the first seat 23, the position of the movable fulcrum 82, the position of the rod 10, etc., in accordance with the training type selected by the user.

[0089] The training system 301 may include an input / output interface 19. The training apparatus 1 may be connectable to an external device via the input / output interface 19. The external device may be, for example, a personal computer or a smartphone. The connection with the external device may be wired or wireless. The external device connected to the input / output interface 19 may function as a display unit, an input unit, and a storage unit. When the external device is connected via a wire, a connection terminal may be provided on the housing 51 of the drive device 5, for example.

[0090] The control unit 13 and the storage unit 14 may be built into the training device 1 or may be externally attached. If externally attached, communication may be wireless or wired.

[0091] <<16. Effects>> With the training device according to the first embodiment, when training, the extension portion 6 is positioned in the extension position, and the fixed fulcrum 81 and the movable fulcrum 82, which change the direction in which the string-like portion 7 extends, are moved to the left and right of the seat 2 together with the extension portion 6. By moving the fixed fulcrum 81 and the movable fulcrum 82 to the left and right of the seat 2 together with the extension portion 6, the user can perform training events that apply load to the body by moving the hands at a position away from the center line of the body, such as the bench press, incline press, lat pulldown, etc.

[0092] When training is not being performed, the extension 6 can be placed in the storage position, allowing the extension 6, the fixed fulcrum 81, and the movable fulcrum 82 to be stored below the seat 2. This allows the training device 1 to take up less space.

[0093] However, training devices that use weights require not only installation space for the weights but also strength to support the weights, resulting in larger and heavier devices. The training device 1 according to the first embodiment uses the driving force of the electric motor 52 to apply a load to the user's body, eliminating the need for weights. Therefore, even when the extension portions 6 are positioned in the extended position and spread out to the left and right, the device requires less space and is lighter than training devices that use weights. Furthermore, safety is improved because accidents such as dropping the weights are prevented.

[0094] Since the fixed fulcrum 81 and the movable fulcrum 82 are provided at the upper end of the extension part 6 in the storage position, when the extension part 6 is moved to the extension position, the fixed fulcrum 81 and the movable fulcrum 82 can be moved to the left and right to the maximum extent.

[0095] The overhanging portion 6 functions as a member that supports the training apparatus 1 together with the base plate 3 in the extended position. Because the overhanging portion 6 is provided so as to extend left and right from the bottom plate 3 in the extended position, the area of ​​the member that supports the training apparatus 1 is increased, making the training apparatus 1 less likely to tip over and increasing its stability compared to when it is supported by the bottom plate 3 alone. Because the overhanging portion 6 makes it less likely for the training apparatus 1 to tip over, the bottom plate 3 may be formed from a frame-shaped member rather than a plate-shaped member. If the overhanging portion 6 is foldable, the overhanging portion 6 can be spread outward further to increase the area of ​​the member that supports the training apparatus 1, thereby further improving the stability of the training apparatus 1.

[0096] The restricting portion 11 in the restricting position abuts against the extension portion 6 in the extended position, thereby restricting the extension portion 6 from moving to the stored position. In this way, the restricting portion 11 functions as a locking mechanism that restricts the extension portion 6 from moving to the stored position, and thus the extension portion 6 can be more reliably restricted from moving to the stored position compared to when it is fixed only by the metal fittings 68. Therefore, the extension portion 6 can more reliably support the training apparatus 1. Note that if the restricting portion 11 is provided, the metal fittings 68 can be omitted. Note that if the metal fittings 68 are provided, the restricting portion 11 can be omitted.

[0097] The restricting portion 11 abuts against the protrusion 67 formed on the protrusion 6 at the restricting position, thereby restricting further rotation. As a result, as shown in Figure 14, a user performing a lat pulldown can press their feet against the restricting portion 11 to stabilize their posture.

[0098] A plurality of fulcrum attachment / detachment sections 66 for holding movable fulcrums 82 are formed in a line in the front-rear direction on the extension section 6. By varying the position of the movable fulcrum 82, it is possible to change the angle of pulling during training in which the string-like section 7 is pulled via the movable fulcrum 82. This allows the position of the movable fulcrum 82 to be changed depending on the user's body type, preferences, and type of training, thereby making training more comfortable and efficient.

[0099] Instead of the fulcrum attachment / detachment part 66, a rail that holds the movable fulcrum 82 so that it can slide back and forth may be provided on the extension part 6. Holding it with a rail increases the degree of freedom in the position of the movable fulcrum 82. This makes it possible to more precisely adjust the position of the movable fulcrum 82 according to the user's body type, preferences, and type of training, thereby making training even more comfortable and efficient.

[0100] Because the first seat 23 is rotatable about the rotation axis 25, it is possible to perform various training events by changing the angle of the first seat 23. For example, as shown in Fig. 15, by rotating the first seat 23 by 90 degrees or more, the first seat 23 can be retracted from above the front part of the bottom plate 3. The space created by the retracted first seat 23 can be used to perform training events such as squats.

[0101] Because the second seat 24 is rotatable about the rotation axis 26, when performing the incline press as shown in Fig. 13, the angle of the second seat 24 can be adjusted, allowing training in a more stable posture. Note that even if the seat 2 is not divided like the training device 1 according to the first embodiment, it is still possible to perform training exercises in which the hands are moved away from the center line of the body to apply load to the body, and to achieve a compact device.

[0102] The grip 71 at the other end of the string 7 is provided with an operation unit 711 that transmits a signal to the control unit 13 when operated. The user can operate the operation unit 711 to transmit a signal to the control unit 13 while remaining in the training posture. The control unit 13 controls the drive device 5 to apply and stop the load based on the received signal, allowing the user to start and stop training while remaining in the training posture. Furthermore, if the user feels physically exhausted during training and wishes to stop the load application, the user can simply operate the operation unit 711 while remaining in the training posture, thereby improving the safety of the training. The control unit 13 may also be configured to control the drive device 5 to change the load based on the transmitted signal. In this case, the user can operate the operation unit 711 to change the load while remaining in the training posture.

[0103] The display unit 121 is provided with a position that can be changed by the arm 122, so that the display unit 121 can be moved to a position that is easy for the user to see during training, as shown in Figures 12 to 15. The arm 122 starts from the front end of the first seat 23, and since the user's head is often located near the front end of the first seat 23 during training, it is easy to position the display unit 121 in a position that is easy for the user to see. Furthermore, by displaying information such as the value of the torque applied to the string-like part 7 on the display unit 121, the user can easily understand the content and effects of the training. The user's posture during training and the results of posture estimation may also be displayed on the display unit 121.

[0104] Since the rod 10 provided below the seat 2 can be extended forward, as shown in Figure 14, in combination with the rotation of the first seat 23, the rod-side fulcrum 103 that changes the direction in which the string-like portion 7 extends can be positioned above the first seat 23. This makes it possible to perform training such as lat pulldowns.

[0105] Casters 9 are provided at the rear end of the bottom plate 3, and a grip 15 is provided at the front end. When a user grasps the grip 15 and lifts the front end of the bottom plate 3, the casters at the rear end touch the ground, allowing the training apparatus 1 to be rolled and moved. This makes it easier to transport the training apparatus 1. Furthermore, the drive unit 5, which is a heavy object, is provided at the rear end of the bottom plate 3, rather than at the front end which is lifted during transport. Therefore, it becomes easier to lift the front end of the bottom plate 3 during transport, making it even easier to transport the training apparatus 1.

[0106] <<17. Modified Examples of Training Device>> Figure 24 is a perspective view of a training device according to a first modified example of the first embodiment, showing a state in which the extension portion has been moved to the extended position. Figure 25 is a perspective view of a training device according to a first modified example of the first embodiment, showing a state in which the extension portion has been moved to the stored position.

[0107] In the training device 1 according to the modified example, the direction in which the rotation axis (first rotation axis) 63 that rotates the extension portion 6 extends is different from that in the above-described example. Specifically, the rotation axis 63 extends in the vertical direction at the rear end of the extension portion 6. When the extension portion 6 configured in this manner moves from the retracted position to the extended position, the front end moves so as to spread out to the left and right. The fixed fulcrum 81 and the movable fulcrum 82 are provided at the upper end of the extension portion 6.

[0108] As with the training device 1 illustrated in Figures 11 to 23, the training device 1 according to the first modified example also makes it possible to perform training exercises that apply stress to the body by moving the hands at a position away from the center line of the body while miniaturizing the device.

[0109] 24 and 25, some of the components other than the protruding portion 6, the fixed fulcrum 81, and the movable fulcrum 82 are shown in a simplified manner and some of the reference numerals are omitted, but the configuration is the same as that of the training device illustrated in Figures 11 to 23. For example, the seat 2 can be rotated to create a space where training exercises such as squats can be performed.

[0110] 26 and 27 are perspective views of a training device according to a second modified example of the first embodiment, showing a state in which the extension portion has been moved to the extended position and a state in which the extension portion has been moved to the retracted position, respectively.

[0111] In the training device 1 according to the second modification, similar to the modification described in FIGS. 24 and 25 , the rotation axis (first rotation axis) 63 that rotates the extension portion 6 extends in the vertical direction at the rear end of the extension portion 6. When the extension portion 6 configured in this manner moves from the stored position to the extended position, the front end moves so as to spread out to the left and right. In the training device 1 according to the second modification, the extension portion 6 is rod-shaped. The extension portion 6 may be provided with a rotation axis separate from the rotation axis 63 so as to be rotatable with two degrees of freedom. Furthermore, the base portion of the extension portion 6 may be configured to slide in the front-rear direction. Furthermore, the extension portion 6 may be configured as a six-axis manipulator.

[0112] As with the training device 1 illustrated in Figures 11 to 23, the training device 1 according to the second modified example also makes it possible to perform training exercises that apply stress to the body by moving the hands at a position away from the center line of the body while miniaturizing the device.

[0113] 26 and 27, some of the components other than the protruding portion 6, the fixed fulcrum 81, and the movable fulcrum 82 are shown in a simplified manner and some of the reference numerals are omitted, but the configuration is the same as that of the training device illustrated in Figures 11 to 23. For example, the seat 2 can be rotated to create a space where training exercises such as squats can be performed.

[0114] In addition, a leg training attachment that enables leg extension may be provided near the area where the user sits, for example, near the first seat 23.

[0115] FIG. 28 is a perspective view of a training device according to a third modified example. FIG. 29 is a side view of the training device according to the third modified example. As shown in FIGS. 28 and 29 , an implement 151 for enabling leg extension, one type of training exercise, may be attached to the rear of the first seat 23. The implement 151 may be a detachable attachment. The load of the implement 151 may be applied by the driving force of the drive unit 5. In this case, the load of the implement 151 can be changed by the driving force of the drive unit 5. When performing leg extension, the first seat 23 may be rotated about the rotation axis 26 to tilt the seat surface 21. Tilting the seat surface can stabilize the posture during training.

[0116] In the training device 1 according to the third modification, a movable fulcrum 82 is provided on the upper surface of the extension portion 6 in the extended position. The movable fulcrum 82 is provided so as to be able to slide back and forth. The position of the movable fulcrum 82 may be automatically moved back and forth by the driving force of an electric motor or the like.

[0117] A recess 152 that narrows in width in the left-right direction is formed in the second seat 24. The recess 152 is formed in the rear portion of the second seat 24. When performing lat pulldowns, which are one type of training exercise, the user's thighs hook onto the front edge of the recess 152, preventing the user's body from floating.

[0118] A hook 153 for hooking and holding the grip portion 71 (see also FIG. 7 ) may be provided. The grip portion 71 may be provided below the second seat 24. When the user wants to let go of the grip portion 71, for example when changing training types, the grip portion 71 can be hooked onto the hook portion 153 without placing the grip portion 71 on the floor or the upper surface of the protruding portion 6. This reduces the amount of physical movement required when gripping and releasing the grip portion 71, allowing for efficient training. Furthermore, since the grip portion 71 does not need to be placed on the floor, it is easier to keep the grip portion 71 clean.

[0119] The support part 4, which changes the angle of the seat surface 21 of the second seat 24, automatically expands and contracts using an actuator with a high reduction ratio that uses a ball screw. This allows for self-locking when no current is applied, eliminating the need for electricity to maintain the angle of the seat surface 21 of the second seat 24.

[0120] A speaker 154 may be built into the seat 2. The speaker 154 may be built into the first seat 23 or the second seat 24. A haptic device 155 may be built into the seat 2. The haptic device 155 may be built into the first seat 23 or the second seat 24. The speaker 154 can provide audio information or music to the user. The haptic device 155 can provide vibrations that match the training content or music to the user.

[0121] Figure 30 is a perspective view of a training device according to a fourth modification. When performing a training exercise such as squats (see also Figure 21 ), the user stands on the front portion of the base plate 3 and the overhanging portion 6. As shown in Figure 30 , a force plate (floor reaction force meter) 156 may be provided where the user stands when performing squats. The force plate 156 measures the force applied to the top surface. By displaying the information obtained by the measurement on the display device 12, the user's center of gravity and the position where force is being applied can be visualized.

[0122] 30, the display device 12 may be provided separately from the main body of the training device 1 provided with the seat 2. In the following description, the main body of the training device 1 provided with the seat 2 will be simply referred to as the main body of the training device 1.

[0123] The display device 12 may include two display devices, a first display device 12a and a second display device 12b. Alternatively, the display device 12 may include three or more display devices.

[0124] The first display device 12a may be provided at a position behind the main body of the training apparatus 1. The first display device 12a is arranged with the display unit 121 facing forward so that it can be easily seen by the user during training.

[0125] The second display device 12b may be provided in the front of the main body of the training apparatus 1. By providing the first display device 12a in the rear and the second display device 12b in the front, the user can check the information displayed on the display device 12 even if the user's orientation changes depending on the training type. The display device 12 may be provided with an image sensor.

[0126] As shown in FIG. 30 , a camera 157 may be provided separate from the main body of the training apparatus 1. The camera 157 may be provided on the side of the main body of the training apparatus 1. The camera 157 captures still images and videos of the user during training. Information on the captured still images and videos is sent to the control unit 13 via a wired or wireless connection. Images of the user may be captured from multiple directions. Images of the user may be captured from multiple directions to acquire posture information of the user. For example, various analyses may be performed based on posture information acquired by capturing images from the front, side, and rear. For example, if image sensors are provided in the first display device 12a and the second display device 12b in addition to the installation of the camera 157, images of the user may be captured from multiple directions to acquire posture information of the user.

[0127] At least one of the first display device 12a, the second display device 12b, and the camera 157 may have wheels and a drive unit for rotating the wheels, and may be capable of autonomous movement by self-propulsion. The movement of the first display device 12a, the second display device 12b, and the camera 157 is not limited to self-propulsion, and may be movement by deformation of an arm. The positions of the first display device 12a, the second display device 12b, and the camera 157 may be determined by the control unit 13 in accordance with the training event.

[0128] 31 is a diagram showing an example of movement of the second display device 12b. As shown in FIG. 31, when the seat 2 is in front of the user and the second display device 12b is difficult to see, the second display device 12b may be moved to a position where the user can easily see it.

[0129] A robot arm may extend from at least one of the first display device 12 a, the second display device 12 b, and the camera 157. The robot arm may be configured to touch the user's body, allowing the user to understand the parts of the body that they should focus on during training.

[0130] Electrodes may be provided at the location where the user grips the grip portion 71. By measuring body weight with the force plate 156 and measuring resistance with the electrodes, it becomes possible to measure body composition using the bioelectrical impedance method.

[0131] A haptic device or a vital sensing device may be provided at the portion of the gripping unit 71 that the user grips. This can transmit information by vibration or the like through the user's hand, or acquire vital information such as the user's heart rate. Information exchange between the haptic device or sensing device and the control unit 13 may be performed by wireless communication such as Bluetooth (registered trademark), or by wired communication.

[0132] Figure 32 is a perspective view of a training device according to a fifth modified example. As shown in Figure 32, instead of the drive unit 5 (see also Figure 6, etc.) provided below the second seat 24, an electric motor unit 159 is provided in the front portion of the bottom plate 3 and the protruding portion 6. The electric motor unit 159 combines the electric motor 52 and the string-like portion 7 into a unit that is detachable from the main body of the training device 1. For example, if the string-like portion 7 needs to be replaced due to wear or the like, the entire electric motor unit 159 can be replaced, simplifying the replacement process.

[0133] The training apparatus 1 may be provided with a laser marker 160. The laser marker 160 irradiates the base plate 3, the protruding portion 6, etc. with laser light to indicate the user's standing position, etc. This allows the user to train in an appropriate position.

[0134] Figure 33 is a perspective view of a training device according to a sixth modification. As shown in Figure 33, a motor unit 159 may be provided for each of the two string-like parts 7. If one of the string-like parts 7 needs to be replaced due to wear or the like, only that one string-like part 7 can be replaced along with the motor unit 159, which reduces replacement costs compared to replacing both string-like parts 7 together.

[0135] The electric motor unit 159 may be movable forward and backward. The forward and backward position of the electric motor unit 159 may be automatically moved by the driving force of an electric motor or the like.

[0136] FIG. 34 is a plan view of a training booth. The training apparatus 1 may be installed as a training booth 200 surrounded by a floor, ceiling, and walls. In the training booth 200, the training apparatus 1 is surrounded by a floor 201, a ceiling (not shown), and walls 202. In FIG. 34, the training apparatus 1 inside is shown visible through the ceiling. In the training booth 200, the training apparatus 1 is surrounded by the floor 201, ceiling, and walls 202, so training can be performed without worrying about sound leakage or being seen by others. Note that a display device, a camera, a speaker, etc. may be installed on the wall 202.

[0137] <<18. Supplementary Notes>> The present technology can also be configured as follows. (1) A training device comprising: a seat having a seating surface; a drive device provided below the seat; a pair of extensions provided on both the left and right sides of the seat and movable between a stored position and an extended position; extension-side fulcrums held by each of the pair of extensions; a pair of string-like parts each having one end connected to the drive device so as to be retractable; and a control unit that controls the drive device to control the load applied to the pair of string-like parts by retraction, wherein one of the pair of string-like parts has its extension direction changed by the extension-side fulcrum held by one of the pair of extensions; and the other of the pair of string-like parts has its extension direction changed by the extension-side fulcrum held by the other of the pair of extensions, and the pair of extensions move from the stored position to the extended position, thereby moving the pair of extension-side fulcrums to positions away from the seat. (2) The training device according to (1) above, further comprising a bottom plate provided below the seat and supporting the drive device. (3) The training device according to (2) above, wherein the pair of extensions are joined to the bottom plate by a first rotation axis and are rotatable about the first rotation axis between the storage position and the extended position, and the pair of extension-side fulcrums are held at a position away from the seat in the extended position. (4) The pair of extensions are plate-shaped members that cover the underside of the seat in the storage position, extend in the front-to-rear direction, are rotatable about a first rotation axis provided at a lower end, and reach the extended position by rotating so that their upper ends move in a direction away from the seat, and an outer surface of the pair of extensions that faces outward in the storage position contacts a support surface on which the training device is placed in the extended position, and the pair of extension-side fulcrums are held at a position away from the first rotation axis.(5) The training device according to any one of (1) to (4) above, further comprising a rod joined to the sheet, the rod being provided with a rod-side fulcrum that changes the direction in which the pair of string-like portions extend. (6) The training device according to (5) above, wherein the rod-side fulcrum is detachably provided on the rod, the extension-side fulcrum is detachably provided on the extension, and the extension-side fulcrum functions as the rod-side fulcrum by attaching it to the rod. (7) The training device according to (5) or (6) above, comprising one or more of the rods. (8) The training device according to any one of (5) to (7) above, wherein the rod has a joint with one or more degrees of freedom. (9) The training device according to (8) above, wherein the joint is provided at the joint with the sheet. (10) The training device according to (5) above, wherein the rod is movable between a non-use position and a use position, and the rod is located between the front and rear ends of the seat in the front-to-rear direction in the non-use position, and one end of the rod is located forward of the front end of the seat in the use position. (11) The training device according to (10) above, wherein the rod-side fulcrum is provided at one end of the rod. (12) The training device according to (10) or (11) above, wherein the rod is rotatably connected to the seat and is movable between the non-use position and the use position. (13) The training device according to any one of (5) to (12) above, wherein the rod is adjustable in at least one of height, length, and angle. (14) The training device according to any one of (5) to (13) above, wherein the rod is provided with one or more rod-side fulcrum attachment / detachment parts that hold the rod-side fulcrum. (15) The training device according to any one of (5) to (13) above, wherein the rod is provided with a rod-side rail that slidably holds the overhang-side fulcrum. (16) The training device according to (4) above, wherein the pair of overhang-side fulcrums are held at upper ends of the overhangs that are in the stored position.(17) The training device according to any one of (1) to (16) above, wherein the overhanging portion is provided with one or more fulcrum detachable portions arranged in the front-to-rear direction for detachably holding the overhanging portion-side fulcrum. (18) The training device according to any one of (1) to (16) above, wherein the overhanging portion is provided with a rail for holding the overhanging portion-side fulcrum so that the rail is slidable in the front-to-rear direction. (19) The training device according to any one of (1) to (18) above, wherein the seat has a first seat and a second seat, the first seat being longer than the second seat. (20) The training device according to (19) above, wherein at least one of the first seat and the second seat is rotatable around a rotation axis. (21) The training device according to any one of (1) to (20) above, further comprising a grip connected to the other end of the string-like portion, wherein the grip is provided with an operation unit capable of sending a signal to the control unit. (22) The training device according to any one of (1) to (21) above, further comprising a display unit capable of displaying an image. (23) The training device according to (22) above, further comprising an image sensor. (24) The training device according to (23) above, wherein the control unit controls the load applied to the pair of string-like portions by winding by the drive device based on information acquired from the image sensor. (25) The training device according to any one of (1) to (24) above, wherein the drive device is provided below the seat, and further comprising casters provided rearward of the drive device.(26) A training device according to any one of (4) to (25) above, further comprising a pair of restricting parts that are movable between a non-restricting position and a restricting position, wherein the restricting parts are located between the pair of extension parts that are in the stored position in the non-restricting position and abut against the upper surfaces of the extension parts that are in the extended position in the restricting position to restrict movement of the extension parts toward the stored position, the restricting parts are plate-shaped members that face the pair of extension parts that are in the stored position in the non-restricting position and are movable to the restricting position by rotating around a second rotation axis that extends vertically, wherein the lower ends of the restricting parts abut against the upper surfaces of the extension parts in the restricting position, and a convex part is formed on the upper surface of the extension part that abuts against the pair of restricting parts that are in the restricting position to restrict rearward movement.

[0138] DESCRIPTION OF SYMBOLS 1 Training device 2 Seat 21 Seat surface 22 Back surface 23 First seat 24 Second seat 25 Rotation axis (third rotation axis) 26 Rotation axis (fourth rotation axis) 3 Bottom plate 4 Support part 41 First support part 42 Second support part 5 Drive device 51 Housing 52 Motor 53 Output shaft 6 Extension part 63 Rotation axis (first rotation axis) 64 Outer surface 65 Cord passage part 66 Fulcrum attachment / detachment part 67 Convex part 68 Metal fitting 7 Cord-like part 71 Grip part 711 Operation part 8 Fulcrum on extension part side 81 Fixed fulcrum 811 First pulley 812 Second pulley 82 Movable fulcrum 821 Third pulley 9 Caster 10 Rod 101 One end 102 Rotation axis 103 Rod side fulcrum 104 Pulley 11 Regulating unit 111 Rotation axis (second rotation axis) 12 Display device 12a First display device 12b Second display device 121 Display unit 122 Arm 13 Control unit 18 Pressure sensor 151 Instrument 152 Recess 153 Hook 154 Speaker 155 Haptic device 156 Force plate 157 Camera 159 Motor unit 160 Laser marker 200 Training booth 201 Floor 202 Wall C Center line

Claims

1. A training device comprising: a seat having a seating surface; a drive device provided below the seat; a pair of extension portions provided on both the left and right sides of the seat and movable between a stored position and an extended position; extension portion-side fulcrums held by each of the pair of extension portions; a pair of string-like portions having one end connected to the drive device so that they can be wound up; and a control unit that controls the drive device to control the load applied to the pair of string-like portions by winding them up, wherein one of the pair of string-like portions has its extension direction changed by the extension portion-side fulcrum held by one of the pair of extension portions, and the other of the pair of string-like portions has its extension direction changed by the extension portion-side fulcrum held by the other of the pair of extension portions, and the pair of extension portions move from the stored position to the extended position, thereby moving the pair of extension portion-side fulcrums to positions away from the seat.

2. The training device according to claim 1, further comprising a base plate disposed below the seat and supporting the drive device.

3. A training device as described in claim 2, wherein the pair of extensions are joined to the bottom plate by a first rotation axis and are rotatable around the first rotation axis between the storage position and the extension position, and the pair of extension side supports are held at a position away from the seat in the extension position.

4. The pair of protruding portions are plate-like members that cover the underside of the seat in the storage position, extend in the front-to-rear direction, and are rotatable around a first rotation axis provided at the lower end, and are positioned in the protruding position by rotating so that the upper end moves in a direction away from the seat, the outer surfaces of the pair of protruding portions that face outward in the storage position come into contact with a support surface on which the training device is placed in the protruding position, and the pair of protruding portion side supports are held at a position away from the first rotation axis.

5. The training device according to claim 1, further comprising a rod joined to the sheet, the rod being provided with a rod-side fulcrum that changes the direction in which the pair of string-like portions extend.

6. A training device as described in claim 5, wherein the rod-side fulcrum is detachably attached to the rod, the extension-side fulcrum is detachably attached to the extension, and the extension-side fulcrum functions as the rod-side fulcrum by being attached to the rod.

7. A training device according to claim 5, comprising one or more of said rods.

8. The training device according to claim 5, wherein the rod has a joint with one or more degrees of freedom.

9. The training device according to claim 8, wherein the joint is provided at a joint with the seat.

10. A training device as described in claim 5, wherein the rod is movable between an unused position and an used position, and in the unused position the rod is positioned between the front and rear ends of the seat in the fore-and-aft direction, and in the used position one end of the rod is positioned forward of the front end of the seat.

11. The training device according to claim 10, wherein the rod-side fulcrum is provided at the one end of the rod.

12. The training device according to claim 10, wherein the rod is rotatably connected to the seat so as to be movable between the non-use position and the use position.

13. The training device according to claim 5, wherein the rod is adjustable in at least one of height, length, and angle.

14. A training device according to claim 5, wherein the rod is provided with one or more rod-side fulcrum attachment / detachment parts for holding the rod-side fulcrum.

15. A training device according to claim 5, wherein the rod is provided with a rod-side rail that slidably holds the extension-side fulcrum.

16. A training device according to claim 4, wherein the pair of extension-side supports are held at the upper ends of the extensions in the stored position.

17. A training device according to claim 1, wherein the extension is provided with one or more detachable fulcrum parts arranged in the front-rear direction to detachably hold the extension-side fulcrum.

18. A training device according to claim 1, wherein the extension is provided with a rail that holds the extension-side fulcrum and is slidable in the front-rear direction.

19. The training device of claim 1, wherein the seat comprises a first seat and a second seat, the first seat being longer than the second seat.

20. The training device according to claim 19, wherein at least one of the first seat and the second seat is rotatable about a rotation axis.

21. The training device according to claim 1, further comprising a gripping portion connected to the other end of the string-like portion, the gripping portion being provided with an operating portion capable of transmitting signals to the control portion.

22. The training device according to claim 1, further comprising a display unit capable of displaying an image.

23. The training device of claim 22, further comprising an image sensor.

24. A training device according to claim 23, wherein the control unit controls the load applied to the pair of string-like portions by winding by the drive device based on information acquired from the image sensor.

25. The training device according to claim 1, wherein the drive device is provided below the seat, and the training device further comprises casters provided rearward of the drive device.

26. A training device as described in claim 4, further comprising a pair of regulating parts that are movable between a non-restricting position and a restricting position, wherein the regulating parts are located between the pair of extension parts that are in the stored position in the non-restricting position, and abut against the upper surfaces of the extension parts that are in the extended position in the restricting position to restrict movement of the extension parts toward the stored position, the regulating parts are plate-shaped members that face the pair of extension parts that are in the stored position in the non-restricting position, and are capable of rotating about a second rotation axis that extends vertically to move to the restricting position, wherein the lower end of the regulating part abuts against the upper surfaces of the extension parts in the restricting position, and a convex part is formed on the upper surface of the extension part that abuts against the pair of regulating parts that are in the restricting position to restrict rearward movement.

Images