Training device and sliding unit therefor

Abstract

The present invention provides a sliding unit having a smaller number of components or a sliding unit having a lower cost compared with the conventional technology, and a training device provided with the sliding unit. A sliding unit 13(8) according to one embodiment of the present invention comprises: a housing 1300 which is attached to a rail so as to be slidable on the rail and slides on the rail in accordance with a user's training; a rotation part which is rotatably attached to the housing 1300 and receives force from the body of the user during training; a cam 1311 which rotates in accordance with the rotation of the rotation part; and a follower 1312 which is in contact with the cam 1311 and moves in accordance with the rotation of the cam 1311. The follower 1312 moves a biased load transmission member 14 in a direction against the biasing, in accordance with the clockwise and counterclockwise rotations from a reference position of the cam 1311.

Description

Training device and sliding unit therefor

[0001] The present invention relates to a training device and a sliding unit therefor.

[0002] There is a training device that has a unit that slides on a rail (hereinafter referred to as a "sliding unit"), and a load is applied to the sliding unit using a weight or the like, and the user applies force to the sliding unit in a direction that resists the load, thereby strengthening the user's body.

[0003] Some training devices equipped with a sliding unit are configured so that the part of the sliding unit that comes into contact with the user's body can rotate freely around an axis, and when this rotating part (hereinafter referred to as the "rotating part") rotates clockwise or counterclockwise from a reference position, a load is applied to the rotating part in the direction returning it to the reference position.

[0004] Patent Document 1, for example, describes a training device having the above-described configuration.

[0005] Japanese Patent Application Laid-Open No. 2006-187317

[0006] In the training device described in Patent Document 1, the load applied to the lifting and rocking member as it slides is transmitted to the gripping part (corresponding to the rotating part) by the load transmission part provided in the lifting and rocking member (corresponding to the sliding unit).

[0007] The load transmission unit of the training device described in Patent Document 1 includes a first pinion that rotates with the rotation of the grip, a second pinion that rotates with the rotation of the first pinion, an endless roller chain stretched between the first and second pinions, a first bevel gear connected to the second pinion by a shaft, a second bevel gear meshed with the first bevel gear, a crank connected to the second bevel gear by a shaft, and a two-joint link member connected to the crank. A weight is connected to this link member via a tension member, so that a load from the weight is applied when the grip rotates.

[0008] As described above, the load transmission unit provided in the training device described in Patent Document 1 has a large number of parts, which increases the cost.

[0009] In view of the above circumstances, the present invention provides a sliding unit that has fewer parts or is less expensive than conventional techniques, and a training device that includes the sliding unit.

[0010] In one aspect, the present invention provides a sliding unit for a training device, comprising: a housing slidably attached to a rail and sliding on the rail as a user trains; a rotating part rotatably attached to the housing and receiving force from the body of the user during training; a cam that rotates as the rotating part rotates; and a follower member that contacts the cam and moves as the cam rotates, wherein the follower member moves a biased load transmission member in a direction against the bias as the cam rotates clockwise and counterclockwise from a reference position.

[0011] In another aspect, the present invention provides a sliding unit for a training device, comprising: a housing slidably attached to a rail and sliding on the rail as a user trains; a rotating part rotatably attached to the housing and receiving force from the body of the user during training; a first bevel gear attached to the rotating shaft of the rotating part; a second bevel gear meshing with the first bevel gear; and a crank that rotates as the second bevel gear rotates, wherein the crank moves a biased load transmission member in a direction against the bias as it rotates clockwise and counterclockwise from a reference position.

[0012] In another aspect, the present invention provides a sliding unit for a training device, comprising: a housing slidably attached to a rail, the sliding unit sliding on the rail as a user trains; a rotating unit rotatably attached to the housing, the rotating unit receiving force from the body of the user during training; a pinion that rotates as the rotating unit rotates; a first rack and a second rack arranged to sandwich the pinion; a shaft member connected to a load transmission member that is biased; a first hook connected to the first rack and hooked onto the shaft member; and a second hook connected to the second rack and hooked onto the shaft member, wherein as the pinion rotates clockwise, the first hook pulls the shaft member in a direction against the bias of the load transmission member and the second hook is released from the shaft member, and as the pinion rotates counterclockwise, the second hook pulls the shaft member in a direction against the bias of the load transmission member and the first hook is released from the shaft member.

[0013] In another aspect, the present invention provides a training device including: a load generating unit that generates a load; a rail; any one of the sliding units described above that is attached to the rail so as to be slidable on the rail; and a load transmitting member that has one end connected to the load generating unit and the other end connected to the sliding unit and that transmits the load generated by the load generating unit to the sliding unit.

[0014] According to the present invention, a sliding unit having fewer parts or lower cost than conventional techniques, and a training device including the sliding unit, are provided.

[0015] FIG. 1 is a diagram showing the appearance of a training device according to an embodiment. FIG. 1 is a diagram showing the configuration of a sliding unit according to a first embodiment. FIG. 2 is a diagram showing a state in which a rotating part of the sliding unit according to the first embodiment has rotated clockwise as seen by a user. FIG. 3 is a diagram showing a state in which a rotating part of the sliding unit according to the first embodiment has rotated counterclockwise as seen by a user. FIG. 4 is a diagram showing the configuration of a sliding unit according to a second embodiment. FIG. 5 is a diagram showing a state in which a rotating part of the sliding unit according to the second embodiment has rotated clockwise as seen by a user. FIG. 6 is a diagram showing a state in which a rotating part of the sliding unit according to the second embodiment has rotated counterclockwise as seen by a user. FIG. 7 is a diagram showing the configuration of a sliding unit according to a third embodiment. FIG. 8 is a diagram showing a state in which a rotating part of the sliding unit according to the third embodiment has rotated clockwise as seen by a user. FIG. 9 is a diagram showing a state in which a rotating part of the sliding unit according to the third embodiment has rotated counterclockwise as seen by a user. FIG. 10 is a diagram showing the configuration of a sliding unit according to a fourth embodiment. FIG. 11 is a diagram showing a state in which a rotating part of the sliding unit according to the fourth embodiment has rotated clockwise as seen by a user. FIG. 11 is a diagram showing a state in which a rotating part of the sliding unit according to the fourth embodiment has rotated counterclockwise as seen by a user. FIG. 10 is a diagram showing the configuration of a sliding unit according to a fifth embodiment. FIG. 11 is a diagram showing a state in which a rotating part of the sliding unit according to the fifth embodiment has rotated clockwise as seen by a user. FIG. 12 is a diagram showing a state in which a rotating part of the sliding unit according to the fifth embodiment has rotated counterclockwise as seen by a user. FIG. 13 is a diagram showing the configuration of a sliding unit according to a sixth embodiment. FIG. 14 is a diagram showing a state in which a rotating part of the sliding unit according to the sixth embodiment has rotated clockwise as seen by a user. FIG. 15 is a diagram showing a state in which a rotating part of the sliding unit according to the sixth embodiment has rotated counterclockwise as seen by a user. FIG. 16 is a diagram showing the configuration of a sliding unit according to a seventh embodiment. FIG. 17 is a diagram showing a state in which a rotating part of the sliding unit according to the seventh embodiment has rotated clockwise as seen by a user. FIG. 18 is a diagram showing the configuration of a sliding unit according to an eighth embodiment. FIG. 19 is a diagram showing a state in which a rotating part of the sliding unit according to the eighth embodiment has rotated clockwise as seen by a user. FIG. 19 is a diagram showing a state in which a rotating part of the sliding unit according to the eighth embodiment has rotated counterclockwise as seen by a user. FIG. 19 is a diagram showing the configuration of a sliding unit according to a ninth embodiment. FIG. 23 is a diagram showing a state in which the rotating part of the sliding unit according to the ninth embodiment has rotated clockwise as seen from the user.FIG. 12 is a diagram showing a state in which a rotating part of the sliding unit according to the ninth embodiment has rotated counterclockwise as seen by a user. FIG. 13 is a diagram showing the configuration of a sliding unit according to the tenth embodiment. FIG. 14 is a diagram showing a state in which a rotating part of the sliding unit according to the tenth embodiment has rotated clockwise as seen by a user. FIG. 15 is a diagram showing a state in which a rotating part of the sliding unit according to the tenth embodiment has rotated counterclockwise as seen by a user. FIG. 16 is a diagram showing the configuration of a sliding unit according to the eleventh embodiment. FIG. 17 is a diagram showing a state in which a rotating part of the sliding unit according to the eleventh embodiment has rotated clockwise as seen by a user. FIG. 18 is a diagram showing a state in which a rotating part of the sliding unit according to the eleventh embodiment has rotated counterclockwise as seen by a user. FIG. 19 is a diagram showing the configuration of a sliding unit according to the twelfth embodiment. FIG. 19 is a diagram showing a state in which a rotating part of the sliding unit according to the twelfth embodiment has rotated clockwise as seen by a user. FIG. 19 is a diagram showing a state in which a rotating part of the sliding unit according to the twelfth embodiment has rotated counterclockwise as seen by a user. FIG. 20 is a diagram showing the configuration of a sliding unit according to the thirteenth embodiment. FIG. 21 is a diagram showing a state in which a rotating part of the sliding unit according to the thirteenth embodiment has rotated clockwise as seen by a user. A diagram showing a state in which a rotating part of a sliding unit according to a thirteenth embodiment is rotated counterclockwise as seen from a user. A diagram showing the configuration of a sliding unit according to a fourteenth embodiment. A diagram showing a state in which a rotating part of a sliding unit according to a fourteenth embodiment is rotated clockwise as seen from a user. A diagram showing a state in which a rotating part of a sliding unit according to a fourteenth embodiment is rotated counterclockwise as seen from a user. A diagram showing the configuration of a transmission provided in a sliding unit according to a modified example.

[0016] [Embodiment] A training apparatus 1 according to one embodiment of the present invention will be described below. Fig. 1 is a diagram showing the exterior of the training apparatus 1. The training apparatus 1 includes a weight 11 (an example of a load generating unit) that generates a load using its own weight, a rail 12, a sliding unit 13 attached to the rail 12 so as to be slidable on the rail 12, a load transmitting member 14 that has one end connected to the weight 11 and the other end connected to the sliding unit 13 and transmits the load generated by the weight 11 to the sliding unit 13, and a seat 15 that supports the buttocks and back of a user using the training apparatus 1. The seat 15 has a seat portion on which the user sits and a backrest portion that supports the user's back.

[0017] In this application, the term "rail" refers to a member that guides an object (a sliding unit in this application) to move along a predetermined moving path that is straight or curved.

[0018] The user sits on the seat 15, bends the right leg (or left leg), presses the sole of the right foot (or left sole) against the rotating part 1301 of the sliding unit 13, and stretches the right leg (or left leg) so as to push up the sliding unit 13, which is biased in the lower right direction in Fig. 1 by the weight 11 via the load transmission member 14, in the upper left direction in Fig. 1. At this time, a load is applied to the right leg (or left leg).

[0019] By repeatedly bending and straightening the right leg (or left leg), the user can strengthen the muscles in the right leg (or left leg).

[0020] As the user bends and straightens the right leg (or left leg), the right foot (or left foot) rotates around an axis that is aligned with the direction of bending and straightening of the right leg (or left leg). The rotating part 1301 is rotatably attached to the housing of the sliding unit 13 so as not to restrict the rotation of the right foot (or left leg).

[0021] The rotating part 1301 is configured such that, as the rotating part 1301 rotates clockwise or counterclockwise from the reference position, a load is applied from the weight 11 in the rotation direction returning to the reference position via the load transmission member 14 and the load transmission mechanism (described later) provided in the sliding unit 13.

[0022] Therefore, a load is also applied to the rotation of the right foot (or left foot) as the user bends and straightens the right leg (or left leg). This load improves the effectiveness of training the right leg (or left leg).

[0023] The load transmission mechanism provided in the sliding unit 13 will be described below.

[0024] 2 is a diagram showing the configuration of a first embodiment of the sliding unit 13. Hereinafter, the sliding unit 13 of the first embodiment will be referred to as sliding unit 13(1).

[0025] The sliding unit 13 (1) includes a housing 1300 that is slidably attached to the rail 12 and slides on the rail 12 as the user trains, a rotating part 1301 that is rotatably attached to the housing 1300 and receives force from the user's body during training, a bevel gear 1302 (an example of a first bevel gear) attached to the rotating shaft of the rotating part 1301, a bevel gear 1303 (an example of a second bevel gear) that meshes with the bevel gear 1302, a crank 1304 that is attached to the rotating shaft of the bevel gear 1303 and rotates as the bevel gear 1303 rotates, and a connecting member 1305 that connects the crank 1304 to the load transmission member 14.

[0026] The crank 1304 of the sliding unit (1) is provided with a slit that penetrates in the Y direction so as to form an arc when viewed in the Y direction, and a pin that penetrates the slit connects the crank 1304 to the connecting member 1305. Therefore, as the crank 1304 rotates around its axis in the Y direction, the pin moves freely within the slit, causing the crank 1304 to move the load transmission member 14 in the Z direction via the connecting member 1305.

[0027] 2 shows a state in which the rotating part 1301 is in the reference position, in which no load is applied to the rotating part 1301.

[0028] 3 shows the state in which the rotating part 1301 rotates clockwise as seen from the user. In this state, the crank 1304 pulls the load transmission member 14 in a direction against the bias via the connecting member 1305, so that a load is applied to the rotating part 1301 in a counterclockwise direction, i.e., in a rotation direction that returns the rotating part 1301 to the reference position.

[0029] 4 shows the state in which the rotating part 1301 has rotated counterclockwise as seen by the user. Even in this state, the crank 1304 pulls the load transmission member 14 in a direction against the bias via the connecting member 1305, so a load is applied to the rotating part 1301 in the clockwise direction, i.e., in the rotation direction that returns the rotating part 1301 to the reference position.

[0030] Second Embodiment Fig. 5 is a diagram showing the configuration of a second embodiment of the sliding unit 13. Hereinafter, the sliding unit 13 of the second embodiment will be referred to as sliding unit 13(2).

[0031] In FIG. 5, among the components of the sliding unit 13(2), the components that are common to or correspond to the components of the sliding unit 13(1) are denoted by the same reference numerals as those used in the sliding unit 13(1).

[0032] The sliding unit 13(2) differs from the sliding unit 13(1) in the shapes of the crank 1304 and the connecting member 1305.

[0033] A member (hereinafter referred to as the "slit member") having a slit penetrating in the Y direction so as to form an arc when viewed in the Y direction is connected to the connecting member 1305 of the sliding unit 13(2), and the crank 1304 is connected to the slit member so that a pin extending in the Y direction of the crank 1304 passes through the slit of the slit member. Therefore, as the crank 1304 rotates around its axis in the Y direction, the pin moves freely within the slit, and the crank 1304 moves the load transmission member 14 in the Z direction via the slit member and the connecting member 1305.

[0034] Fig. 6 is a diagram showing a state in which the rotating unit 1301 has rotated clockwise as seen by the user, and Fig. 7 is a diagram showing a state in which the rotating unit 1301 has rotated counterclockwise as seen by the user.

[0035] 8 is a diagram showing the configuration of a third embodiment of the sliding unit 13. Hereinafter, the sliding unit 13 of the third embodiment will be referred to as sliding unit 13(3).

[0036] In FIG. 8, among the components of the sliding unit 13(3), the components that are common to or correspond to the components of the sliding unit 13(1) are denoted by the same reference numerals as those used in the sliding unit 13(1).

[0037] Like the sliding unit 13(2), the sliding unit 13(3) also differs from the sliding unit 13(1) in the shapes of the crank 1304 and the connecting member 1305.

[0038] In the sliding unit 13(3), the crank 1304 and the connecting member 1305 are connected via a member (hereinafter referred to as the "intermediate member"). The crank 1304 and the intermediate member are connected to be rotatable around an axis in the Y direction. The connecting member 1305 and the intermediate member are also connected to be rotatable around an axis in the Y direction.

[0039] Fig. 9 is a diagram showing a state in which the rotating unit 1301 has rotated clockwise as seen by the user, and Fig. 10 is a diagram showing a state in which the rotating unit 1301 has rotated counterclockwise as seen by the user.

[0040] 11 is a diagram showing the configuration of a fourth embodiment of the sliding unit 13. Hereinafter, the sliding unit 13 of the fourth embodiment will be referred to as sliding unit 13(4).

[0041] In FIG. 11, among the components of the sliding unit 13(4), the components that are common to or correspond to the components of the sliding unit 13(1) are denoted by the same reference numerals as those used in the sliding unit 13(1).

[0042] The sliding unit 13 (4) also includes an end-operated roller chain 1306, one end of which is connected to the crank 1304 and the other end of which is connected to the load transmission member 14 via a connecting member 1305, and a pinion 1307 that engages with the roller chain 1306 and changes the direction of movement of the roller chain 1306.

[0043] Instead of the roller chain 1306, a drive belt may be used.

[0044] The rotation axes of the bevel gear 1303, crank 1304, and pinion 1307 of the sliding unit 13(4) are parallel to the XY plane but not parallel to either the Y or X direction. That is, the rotation axes of the bevel gear 1303, crank 1304, and pinion 1307 are inclined with respect to both the X and Y directions when viewed in the Z direction. By inclining the rotation axes of the crank 1304 and the like with respect to the Y and X directions when viewed in the Z direction in this way, the longitudinal direction of the rotating part 1301 when viewed in the Z direction at the reference position becomes the Y direction, and when the rotating part 1301 rotates clockwise or counterclockwise from the reference position, a load corresponding to the rotation angle from the reference position is applied to the rotating part 1301.

[0045] Fig. 12 is a diagram showing a state in which the rotating unit 1301 has rotated clockwise as seen by the user, and Fig. 13 is a diagram showing a state in which the rotating unit 1301 has rotated counterclockwise as seen by the user.

[0046] 14 is a diagram showing the configuration of a fifth embodiment of the sliding unit 13. Hereinafter, the sliding unit 13 of the fifth embodiment will be referred to as sliding unit 13(5).

[0047] In FIG. 14, among the components of the sliding unit 13(5), the components that are common to or correspond to the components of the sliding unit 13(1) are denoted by the same reference numerals as those used in the sliding unit 13(1).

[0048] The sliding unit 13 (5) includes a pinion 1308 (an example of a first pinion) connected to the bevel gear 1303 by a shaft, a pinion 1309 (an example of a second pinion) connected to the crank 1304, and an endless drive belt 1310 stretched between the pinion 1308 and the pinion 1309.

[0049] Instead of the drive belt 1310, a roller chain may be used.

[0050] The crank 1304 of the sliding unit 13(1) rotates around an axis in the Y direction, while the crank 1304 of the sliding unit 13(5) rotates around an axis in the X direction.

[0051] The sliding unit 13(5) does not include a connecting member 1305, and the load transmission member 14 is directly connected to the crank 1304. Note that, without being limited to this embodiment, the power transmission mechanism of the sliding unit 13 according to the present invention may be connected to the load transmission member 14 via the connecting member 1305 or without the connecting member 1305.

[0052] In the sliding unit (5), a ring-shaped portion at the tip of the load transmission member 14 is hooked onto a pin that protrudes in the X direction from a crank 1304 that rotates around an axis in the X direction.

[0053] Fig. 15 is a diagram showing a state in which the rotating unit 1301 has rotated clockwise as seen by the user, and Fig. 16 is a diagram showing a state in which the rotating unit 1301 has rotated counterclockwise as seen by the user.

[0054] 17 is a diagram showing the configuration of a sixth embodiment of the sliding unit 13. Hereinafter, the sliding unit 13 of the sixth embodiment will be referred to as sliding unit 13(6).

[0055] In FIG. 17, among the components of the sliding unit 13(6), the components that are common to or correspond to the components of the sliding unit 13(5) are denoted by the same reference numerals as those used in the sliding unit 13(5).

[0056] The sliding unit 13(6) has a different shape of the crank 1304 compared to the sliding unit 13(5).

[0057] In the sliding unit (6), a ring-shaped portion at the tip of the load transmission member 14 is inserted into a slit provided in a crank 1304 that rotates around an axis in the X direction, and the crank 1304 and the load transmission member 14 are connected by a pin that passes through the ring-shaped portion.

[0058] Fig. 18 is a diagram showing a state in which the rotating unit 1301 has rotated clockwise as seen by the user, and Fig. 19 is a diagram showing a state in which the rotating unit 1301 has rotated counterclockwise as seen by the user.

[0059] 20 is a diagram showing the configuration of a seventh embodiment of the sliding unit 13. Hereinafter, the sliding unit 13 of the seventh embodiment will be referred to as sliding unit 13(7).

[0060] In FIG. 20, among the components of the sliding unit 13(7), the components that are common to or correspond to the components of the sliding unit 13(6) are denoted by the same reference numerals as those used in the sliding unit 13(6).

[0061] The sliding unit 13(7) differs from the sliding unit 13(6) in that it includes a connecting member 1305, and the crank 1304 and the load transmission member 14 are connected via the connecting member 1305 and an intermediate member.

[0062] Fig. 21 is a diagram showing a state in which the rotating unit 1301 has rotated clockwise as seen by the user, and Fig. 22 is a diagram showing a state in which the rotating unit 1301 has rotated counterclockwise as seen by the user.

[0063] 23 is a diagram showing the configuration of an eighth embodiment of the sliding unit 13. Hereinafter, the sliding unit 13 of the eighth embodiment will be referred to as sliding unit 13(8).

[0064] In FIG. 23, among the components of the sliding unit 13(8), the components that are common to or correspond to the components of the sliding unit 13(1) are denoted by the same reference numerals as those used in the sliding unit 13(1).

[0065] The sliding unit 13 (8) includes a cam 1311 that rotates with the rotation of the rotating part 1301, a follower member 1312 that contacts the cam 1311 and moves with the rotation of the cam 1311, and an axis member 1313 that rotatably holds the follower member 1312.

[0066] One end of the follower member 1312 contacts the cam 1311 , and the other end is connected to the load transmission member 14 via a connecting member 1305 .

[0067] The follower member 1312 forms a lever with the point where it contacts the cam 1311 as the force point, the point where it is held by the shaft member 1313 as the fulcrum, and the point where the load transmission member 14 is connected via the connecting member 1305 as the action point.

[0068] Fig. 24 is a diagram showing a state in which the rotating unit 1301 has rotated clockwise as seen by the user, and Fig. 25 is a diagram showing a state in which the rotating unit 1301 has rotated counterclockwise as seen by the user.

[0069] 26 is a diagram showing the configuration of a ninth embodiment of the sliding unit 13. Hereinafter, the sliding unit 13 of the ninth embodiment will be referred to as sliding unit 13(9).

[0070] In FIG. 26, among the components of the sliding unit 13(9), the components that are common to or correspond to the components of the sliding unit 13(8) are denoted by the same reference numerals as those used in the sliding unit 13(8).

[0071] The sliding unit 13 (9) includes a pinion 1314 (an example of a first pinion) attached to the rotation shaft of the rotating part 1301, a pinion 1315 (an example of a second pinion) attached to the cam 1311, and an endless drive belt 1316 stretched between the pinion 1314 and the pinion 1315.

[0072] Instead of the drive belt 1316, a roller chain may be used.

[0073] Fig. 27 is a diagram showing a state in which the rotating unit 1301 has rotated clockwise as seen by the user, and Fig. 28 is a diagram showing a state in which the rotating unit 1301 has rotated counterclockwise as seen by the user.

[0074] 29 is a diagram showing the configuration of a tenth embodiment of the sliding unit 13. Hereinafter, the sliding unit 13 of the tenth embodiment will be referred to as the sliding unit 13 (10).

[0075] In FIG. 29, among the components of the sliding unit 13(10), the components that are common to or correspond to the components of the sliding unit 13(9) are denoted by the same reference numerals as those used in the sliding unit 13(9).

[0076] The sliding unit 13 ( 10 ) differs from the sliding unit 13 ( 9 ) in the shapes of the cam 1311 and the follower member 1312 .

[0077] Fig. 30 is a diagram showing a state in which the rotating unit 1301 has rotated clockwise as seen by the user, and Fig. 31 is a diagram showing a state in which the rotating unit 1301 has rotated counterclockwise as seen by the user.

[0078] 32 is a diagram showing the configuration of an eleventh embodiment of the sliding unit 13. Hereinafter, the sliding unit 13 of the eleventh embodiment will be referred to as sliding unit 13 (11).

[0079] In FIG. 32, among the components of the sliding unit 13(11), the components that are common to or correspond to the components of the sliding unit 13(9) are denoted by the same reference numerals as those used in the sliding unit 13(9).

[0080] The sliding unit 13(11), like the sliding unit 13(10), differs from the sliding unit 13(9) in the shapes of the cam 1311 and the follower member 1312.

[0081] Fig. 33 is a diagram showing a state in which the rotating unit 1301 has rotated clockwise as seen by the user, and Fig. 34 is a diagram showing a state in which the rotating unit 1301 has rotated counterclockwise as seen by the user.

[0082] 35 is a diagram showing the configuration of a twelfth embodiment of the sliding unit 13. Hereinafter, the sliding unit 13 of the twelfth embodiment will be referred to as the sliding unit 13 (12).

[0083] In FIG. 35, among the components of the sliding unit 13(12), those components that are common to or correspond to the components of the sliding unit 13(1) or the sliding unit 13(8) are denoted by the same reference numerals as those used in the sliding unit 13(1) or the sliding unit 13(8).

[0084] Compared to the sliding unit 13 ( 1 ), the sliding unit 13 ( 12 ) includes a cam 1311 and a follower member 1312 instead of the crank 1304 .

[0085] The follower member 1312 forms a lever with the point where it contacts the cam 1311 as the force point, the point where it is held by the shaft member 1313 as the fulcrum, and the point where the load transmission member 14 is connected via the connecting member 1305 as the action point.

[0086] Fig. 36 is a diagram showing a state in which the rotating unit 1301 has rotated clockwise as seen by the user, and Fig. 37 is a diagram showing a state in which the rotating unit 1301 has rotated counterclockwise as seen by the user.

[0087] 38 is a diagram showing the configuration of a thirteenth embodiment of the sliding unit 13. Hereinafter, the sliding unit 13 of the thirteenth embodiment will be referred to as the sliding unit 13 (13).

[0088] In Figure 38, among the components of the sliding unit 13 (13), the components that are common to or correspond to the components of the sliding unit 13 (12) are denoted by the same reference numerals as those used in the sliding unit 13 (12).

[0089] The follower member 1312 of the sliding unit 13 (13) has a rectangular shape when viewed in the Y direction, and a cam 1311 that rotates around an axis in the Y direction is disposed inside the rectangle. The sliding unit 13 (13) is provided with a rail 1317 that holds the follower member 1312 slidably in the Z direction. Therefore, as the cam 1311 rotates, the follower member 1312 of the sliding unit 13 (13) is guided by the rail 1317 and moves in the Z direction.

[0090] Fig. 39 is a diagram showing a state in which the rotating unit 1301 has rotated clockwise as seen by the user, and Fig. 40 is a diagram showing a state in which the rotating unit 1301 has rotated counterclockwise as seen by the user.

[0091] 41 is a diagram showing the configuration of a 14th embodiment of the sliding unit 13. Hereinafter, the sliding unit 13 of the 14th embodiment will be referred to as the sliding unit 13 (14).

[0092] In FIG. 41, among the components of the sliding unit 13 (14), the components that are common to or correspond to the components of the sliding unit 13 (5) are denoted by the same reference numerals as those used in the sliding unit 13 (5).

[0093] Compared to the sliding unit 13(5), the sliding unit 13(14) includes, instead of the crank 1304, a pinion 1318 that rotates with the rotation of the pinion 1309, a rack 1319 (an example of a first rack) and a rack 1320 (an example of a second rack) that are arranged to sandwich the pinion 1318, an axial member 1321 connected to the biased load transmission member 14, a hook 1322 (an example of a first hook) that is connected to the rack 1319 and hooked on the axial member 1321, and a hook 1323 (an example of a second hook) that is connected to the rack 1320 and hooked on the axial member 1321.

[0094] When the pinion 1318 rotates clockwise from its reference position as viewed in the +X direction in conjunction with the clockwise rotation of the rotating part 1301, the rack 1319 moves in the +Z direction, and the hook 1322 pulls the shaft member 1321 in the +Z direction, i.e., in the direction against the bias of the load transmission member 14. At that time, the rack 1320 moves in the -Z direction, and the hook 1323 is released from the shaft member 1321.

[0095] When the pinion 1318 rotates counterclockwise from its reference position as viewed in the +X direction in conjunction with the counterclockwise rotation of the rotating part 1301, the rack 1320 moves in the +Z direction, and the hook 1323 pulls the shaft member 1321 in the +Z direction, i.e., in the direction against the bias of the load transmission member 14. At that time, the rack 1319 moves in the -Z direction, and the hook 1322 is released from the shaft member 1321.

[0096] Fig. 42 is a diagram showing a state in which the rotating unit 1301 has rotated clockwise as seen by the user, and Fig. 43 is a diagram showing a state in which the rotating unit 1301 has rotated counterclockwise as seen by the user.

[0097] [Modifications] The first embodiment described above is one embodiment of the present invention, and various modifications can be made within the scope of the technical concept of the present invention. Examples of such modifications are shown below. Note that two or more of the modifications shown below may be combined as appropriate.

[0098] (1) The type of training device according to the present invention is not limited to that shown in Fig. 1. In other words, the training device according to the present invention may be any type of training device as long as it includes a load generating unit that generates a load, a rail, a sliding unit attached to the rail so as to be slidable on the rail, and a load transmitting member that has one end connected to the load generating unit and the other end connected to the sliding unit and that transmits the load generated by the load generating unit to the sliding unit.

[0099] These training devices include, for example, a training device that applies a load to the left or right arm when the user bends or stretches the left or right arm, a training device that applies a load to each of the left and right arms when the user bends or stretches both arms simultaneously, a training device that applies a load to the left or right leg when the user bends or stretches the left or right leg, and a training device that applies a load to each of the left and right legs when the user bends or stretches both legs simultaneously.

[0100] (2) The shapes, sizes, arrangements, etc. of the components constituting the training device 1 or sliding unit 13 shown in the drawings are merely examples and may be modified in various ways.

[0101] (3) A transmission may be provided that changes the amount of movement of the load transmission member 14 when the rotating part 1301 rotates a predetermined angle clockwise and counterclockwise from the reference position. In this case, the type of transmission provided in the sliding unit 13 may be any type. For example, the transmission provided in the sliding unit 13 may be either a stepped transmission or a continuously variable transmission. Furthermore, the transmission provided in the sliding unit 13 may be any type, such as a mechanical type, a fluid type, or an electric type.

[0102] Fig. 44 shows an example of a transmission according to this modification. The transmission 131 shown in Fig. 44 is used in place of the pinion 1309 provided in the sliding unit 13(5), sliding unit 13(6), and sliding unit 13(7) shown in Figs. 14, 17, and 20, for example.

[0103] The transmission 131 includes three pinions with different numbers of teeth, namely, pinion 1309(1), pinion 1309(2), and pinion 1309(3), and a derailleur 1324 that changes which of the three pinions meshes with the drive belt 1310. Note that the number of pinions included in the transmission 131 is not limited to three.

[0104] The derailleur 1324 includes a main body 13241 that expands and contracts in the left-right direction in the figure in response to user operation, and a guide plate 13242 that moves the drive belt 1310 in the left-right direction in FIG. 44 as the main body 13241 expands and contracts.

[0105] FIG. 44(A) shows the state in which the drive belt 1310 is engaged with the pinion 1309(1), and FIG. 44(B) shows the state in which the drive belt 1310 is engaged with the pinion 1309(3).

[0106] When the rotating unit 1301 rotates a predetermined angle clockwise or counterclockwise from the reference position and the drive belt 1310 moves a predetermined distance in response to the rotation, the number of rotations of each of the pinions 1309(1) to 1309(3) driven by the drive belt 1310 is inversely proportional to the number of teeth of the pinions. That is, when the drive belt 1310 moves a predetermined distance, the pinion 1309(1), which has the fewest number of teeth, rotates the most, and the pinion 1309(3), which has the most teeth, rotates the least. Therefore, when the rotating unit 1301 is rotated a predetermined angle from the reference position, the load on the rotating unit 1301 is greatest when the drive belt 1310 is meshed with the pinion 1309(1) ( FIG. 44(A) ) and is least when the drive belt 1310 is meshed with the pinion 1309(3) ( FIG. 44(B) ).

[0107] 1...Training device, 11...Weight, 12...Rail, 13...Sliding unit, 14...Load transmission member, 15...Seat, 131...Transmission, 1300...Housing, 1301...Rotating part, 1302...Beal gear, 1303...Beal gear, 1304...Crank, 1305...Connecting member, 1306...Roller chain, 1307...Pinion, 1308...Pinion, 1309...Pinion, 1310...Drive Live belt, 1311...cam, 1312...follower member, 1313...shaft member, 1314...pinion, 1315...pinion, 1316...drive belt, 1317...rail, 1318...pinion, 1319...rack, 1320...rack, 1321...shaft member, 1322...hook, 1323...hook, 1324...derailleur, 13241...main body, 13242...guide plate.

Claims

1. A sliding unit for a training device comprising: a housing slidably attached to a rail and sliding on the rail as a user trains; a rotating part rotatably attached to the housing and receiving force from the user's body during training; a cam that rotates as the rotating part rotates; and a follower member that contacts the cam and moves as the cam rotates, wherein the follower member moves a biased load transmission member in a direction against the bias as the cam rotates clockwise and counterclockwise from a reference position.

2. A sliding unit according to claim 1, further comprising a shaft member that rotatably holds the follower member, wherein the follower member constitutes a lever with a force point at the point where it contacts the cam, a fulcrum at the point where it is held by the shaft member, and a point of application at the point where the load transmission member is connected.

3. The sliding unit according to claim 1, comprising: a first pinion attached to the rotation shaft of the rotating part; a second pinion attached to the cam; and an endless roller chain or an endless drive belt stretched between the first pinion and the second pinion.

4. The sliding unit according to claim 1, comprising: a first bevel gear attached to the rotary shaft of the rotary part; and a second bevel gear meshing with the first bevel gear and connected to the cam.

5. A sliding unit according to claim 1, further comprising a rail for slidably holding said follower member relative to said housing.

6. A sliding unit for a training device comprising: a housing slidably attached to a rail and sliding on the rail as a user trains; a rotating part rotatably attached to the housing and receiving force from the user's body during training; a first bevel gear attached to the rotating shaft of the rotating part; a second bevel gear meshing with the first bevel gear; and a crank that rotates as the second bevel gear rotates, wherein the crank moves a biased load transmission member in a direction against the bias as it rotates clockwise and counterclockwise from a reference position.

7. A sliding unit according to claim 6, comprising: an end-operated roller chain or end-operated drive belt, one end of which is connected to the crank and the other end of which is connected to the load transmission member; and a pinion that meshes with the roller chain or drive belt to change the direction of movement of the roller chain or drive belt.

8. The sliding unit according to claim 6, comprising: a first pinion connected to the second bevel gear; a second pinion connected to the crank; and an endless roller chain or an endless drive belt stretched between the first pinion and the second pinion.

9. A sliding unit for a training device comprising: a housing slidably attached to a rail, and sliding on the rail as a user trains; a rotating section rotatably attached to the housing, and receiving force from the body of the user during training; a pinion that rotates as the rotating section rotates; a first rack and a second rack arranged to sandwich the pinion; a shaft member connected to a biased load transmission member; a first hook connected to the first rack and hooked onto the shaft member; and a second hook connected to the second rack and hooked onto the shaft member, wherein as the pinion rotates clockwise from a reference position, the first hook pulls the shaft member in a direction against the bias of the load transmission member and the second hook is released from the shaft member, and as the pinion rotates counterclockwise from the reference position, the second hook pulls the shaft member in a direction against the bias of the load transmission member and the first hook is released from the shaft member.

10. A sliding unit according to any one of claims 1 to 9, comprising a transmission that changes the amount of movement of the load transmission member when the rotating part rotates by a predetermined angle clockwise and counterclockwise from a reference position.

11. A training device comprising: a load generating unit that generates a load; a rail; a sliding unit according to any one of claims 1 to 9 that is attached to the rail so as to be slidable on the rail; and a load transmitting member that has one end connected to the load generating unit and the other end connected to the sliding unit and that transmits the load generated by the load generating unit to the sliding unit.

12. A training device comprising: a load generating unit that generates a load; a rail; a sliding unit according to claim 10 that is attached to the rail so as to be slidable on the rail; and a load transmitting member that has one end connected to the load generating unit and the other end connected to the sliding unit and that transmits the load generated by the load generating unit to the sliding unit.

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