JP5473687B2 - Training equipment - Google Patents

Description

  The present invention relates to a training device for training an adductor muscle group and / or an abductor muscle group by opening and / or closing a leg against a load.

  A device that trains the adductor muscles when the legs are moved from the open state to the closed state is called an inner thigh or an adductor, and is used to move the legs from the closed state to the open state. A device for training an abductor muscle group is called an outer rhino (0uter thigh) or an abductor. These training apparatuses are known from Patent Documents 1 to 5, for example.

  Here, Patent Documents 1 and 2 show a type in which one machine can be switched between an inner size and an outer size by using a switching lever or the like. Patent Document 3 shows a type in which one machine is used as an inner side / outer side without a switching lever. Further, FIG. 6 of Patent Document 4 shows an inner size, and Patent Document 5 shows an outer size.

Japanese Utility Model Publication No. 62-99264 JP 2006-122499 A Japanese Patent No. 4149255 WO2007 / 144945 (FIG. 6, 0030-31) JP 2008-61793 A

  In the training apparatus shown in Patent Document 1, the user places the knee joints of both legs on the two mats 11 and sits on the seat plate 4, and is sandwiched between the pair of mats 12 and 12 on the two mats 11. As a result, the legs are fixed. The rotating shafts 7 and 7 of the mats 11 and 12 can be rotated in synchronization with each other in the opposite directions by the sprockets 9 and 9 and the chain belt 16. Further, by switching between engagement / disengagement between the cam 8 and the lever 6, the load of the weight 34 acts on the one rotation shaft 7 as a load in the right rotation direction or the left rotation direction. That is, by operating the lever 6, a load is applied when the leg is opened to train the abductor muscle group (outer rhinoceros), or a load is applied when the leg is closed to train the adductor muscle group (inner Can be switched.

  By the way, in Patent Document 1, the mat 11 shown in FIG. 1 is bent in a mountain-fold shape, so that the knee is bent when seated. Further, the seat plate 4 and the back plate 5 shown in FIG. 1 of Patent Document 1 are fixed to the installation base 3, and the installation base 3 is fixed to the base 1 and the portal frame 2. The height position is fixed. The height positions of the mats 11 and 12 fixed to the pair of levers 6 are also fixed. In particular, as is apparent from FIGS. 1 to 3 of the cited document 1, the space below the seat plate 4 is concentric with the two shafts 7 and occupied by the two sprockets 9 and the cam 8. .

  In Patent Literature 2, which shows an inner size / outer size switching type training device as in Patent Literature 1, instead of the mats 11 and 12 of Patent Literature 1, a right leg arm 204a and a left leg arm 204b on which the soles are placed are placed. And a right leg pad 200a and a left leg pad 200b with which the inner side surface or the outer side surface of the knee joint portion of both legs abut. The right leg pad 200a and the left leg pad 200b can rotate around the shaft, and are further switched as shown in FIG. 8 by operating the setting lever 24, whereby the inner side shown in FIG. 11 and the outer side shown in FIG. And can be switched.

  In Patent Document 2, as in Patent Document 1, the user performs training in a posture in which the knee is bent as shown in FIG. The space below the seat pad 210 is concentric with the two rotating shafts 22a and 22b and is occupied by the tuning drive boards 220a and 220b, the large-diameter drive board 23, and the like.

  In Patent Document 3, as shown in paragraph 0016, two foot support frames 13 include a horizontal thigh support portion 14 and a calf support portion 15 inclined downward. Therefore, in Patent Document 3, as in Patent Documents 1 and 2, the user performs training in a posture in which the knee is bent. Further, the two foot support frames 13 have belts 20 surrounding the legs as shown in FIG.

  Patent Document 3 does not have a switching lever, but paragraphs 0021 to 0024 indicate that the outer rhino is used, and paragraph 0025 indicates whether the inner rhino is used as a basic position or a closed position. It is explained separately. Also in Patent Document 3, the lower part of the placing member 2 corresponding to the seat is occupied by the relatively large-diameter tuning gears 22 and 22 that are concentric with the two rotating shafts 12.

  In Patent Literature 4 in which the inner size is shown in FIG. 6, unlike Patent Literatures 1 to 3, the user opens and closes the leg portion with both legs extended. However, the posture shown in FIG. 6 of Patent Document 4 is burdensome for a user with low body flexibility, and there is a problem in expanding the user group.

  Patent document 5 which shows an outer side has the press part 13 contact | abutted to the outer side surface of a leg part. The foot support portion 12 is inclined downward, and the user performs training in a posture in which the knee is bent as in Patent Documents 1 to 3. Below the seat part of the chair 3, components are arranged densely like patent documents 1-3.

  Some aspects of the present invention provide a training device that can ensure a suitable posture according to the flexibility of the user's body and the like during an exercise in which the user opens and closes the legs with the knee extended. There is to do.

(1) A training apparatus according to an aspect of the present invention includes:
A seat where the user sits;
A first first contact portion that contacts the back surface of the user's leg, and a second contact portion that contacts the inner and / or outer surface of the user's leg, respectively. A second movable guide;
First and second rotation shafts disposed below the seat portion and rotatably supporting the first and second movable guide portions,
A tuning mechanism that is disposed below the seat and that synchronizes the first and second rotation shafts in opposite directions and substantially the same rotation amount;
A load acting portion that applies a load to at least one of the first and second rotation shafts against the rotation of the first and second movable guide portions;
A height displacement adjusting mechanism for adjusting a height displacement between the seat portion and the first and second movable guide portions;
It is characterized by having.

  According to one aspect of the present invention, the first and second movable guide portions have flat first and second contact portions that contact the back surface of the user's leg portion, for example, the knee joint portion. Yes. As a result, the user's legs extend almost straight and the knees are bent so as not to be seated. And, for example, the height displacement is applicable so that it can be applied to a low-flexibility user who cannot take an open leg posture when the height displacement between the seat portion and the first and second movable guide portions is small. An adjustment mechanism was added.

  As the height displacement between the seat portion and the first and second movable guide portions is increased by the height displacement adjusting mechanism, the burden on the leg opening posture to the user can be reduced. Adjustment by the height displacement adjustment mechanism can correspond to the flexibility of the user's hip joint and buttocks, and training can be performed while reducing unnecessary stress on the user.

(2) In one aspect of the present invention, the height displacement adjustment mechanism has a seat height adjustment mechanism,
The seat height adjustment mechanism is
Below the seat, a fixed support column that extends vertically at a position that does not interfere with the tuning mechanism,
A movable strut to which the seat portion is fixed and slidably guided to the fixed strut;
A first fixing portion for fixing the movable column to the fixed column;
Can have.

  The height displacement adjusting mechanism may adjust the height of at least one of the seat portion and the first and second movable guide portions. However, since the first and second movable guide portions are connected to the first and second rotating shafts, the seat height adjustment mechanism is easier to realize. The height of the seat can be easily adjusted by the fixed support extending vertically below the seat and the movable support fixed to the fixed support by the first fixing, and after the adjustment, the first fixed Thus, the movable support can be fixed to the fixed support and the seat can be stably supported from below.

  (3) In an aspect of the present invention, the second opening that is narrower than the first leg opening angle than the two leg parts guided by the first and second movable guide parts is at the first leg opening angle. When the leg angle is set, a load adjusting unit that reduces a load applied to one of the two rotating shafts from the load operating unit may be further included.

  This means that the load gradually decreases when the legs of the inner rhino training are mainly closed, and conversely when the legs are opened, the load gradually increases. Therefore, since the load is gradually reduced as the user closes both legs, the user can perform the closing leg operation without difficulty, and the shortening force (relaxation force) of the adductor muscle group can be improved and strengthened. In addition, when trying to open both legs, the load gradually increases or increases from the initial movement, thereby enabling the muscle extension (tension) state in addition to the shortening (relaxation) of the adductor muscle group.

(4) In one aspect of the present invention, the tuning mechanism includes two tuning gears that are fixed to the two rotating shafts and mesh with each other,
The load adjusting unit includes a rotating arm having a base end fixed to one of the first and second rotating shafts and a free end extending in a radial direction beyond the outer peripheral radius of the two tuning gears,
The load of the load acting part can be applied to the free end side of the rotating arm.

  Even if the pitch circles of the two tuning gears are reduced, if the dimensions can withstand the load, the synchronizing operation can be secured, and a space for standing the fixed column and the movable column vertically can be secured below the seat portion. Furthermore, in order to minimize the area where the load adjusting portion occupies the space below the seat portion, the load adjusting portion is formed by the rotating arm 81 connected to the second rotating shaft portion. The width of the turning arm 81 can be made sufficiently smaller than the diameter of the second gear 50B, and can overlap the area of the second connecting portion 91B. The increase of the occupied area which occupies the lower space of can be reduced or eliminated.

(5) In one aspect of the invention, the base ends are connected to the first and second rotating shafts, respectively, and the free ends extend from the lower side of the seat portion toward the outside of the seat portion. Two connecting portions;
The first and second movable guide portions are swingably supported with respect to the first and second connecting portions, respectively, and the first and second movable guide portions are respectively adjusted with swing angles. 1, a second swing angle adjusting mechanism;
Can further be included.

  When the height displacement between the seat portion and the first and second movable guide portions is increased by the height displacement adjustment mechanism (seat portion height adjustment mechanism), the user's leg portion is inclined downward from the height of the seat portion 20. Inclined to extend. On the other hand, since the first contact portions of the first and second movable guide portions are flat surfaces, both legs extending with inclination as the height displacement is larger do not fit on the flat surfaces. When the first and second swing angle adjusting mechanisms are provided in combination with the height displacement adjusting mechanism (seat height adjusting mechanism), the first abutting portion extends along the direction in which the user's leg extends. A flat surface can be arranged.

(6) In one aspect of the present invention, the base ends are connected to the first and second rotating shafts, respectively, and the free ends are directed to the outside of the seat portion from below the seat portion, respectively. First and second connecting portions extending in the direction;
The first and second movable guides are slidably supported along the first and second directions with respect to the first and second connecting parts, respectively, and the first and second movable guides are supported. First and second slide position adjustment mechanisms for adjusting the slide positions of the respective positions;
Can further be included.

  When the height displacement between the seat and the first and second movable guides is increased by the height displacement adjustment mechanism (seat height adjustment mechanism), the reference position of both the legs of the user, for example, the distance between the knee joints is shortened. Become. On the other hand, since the widths of the first and second movable guide portions are finite, the greater the height displacement of the seat portion 20, the more the knee joint portion of the both legs, for example, is the center of the first and second movable guide portions 30A and 30B. And will not fit. Therefore, by providing the first and second slide position adjustment mechanisms 90A and 90B in combination with the height displacement adjustment mechanism (seat height adjustment mechanism), the user can adjust the height displacement adjustment amount regardless of the height displacement adjustment amount. For example, the knee joint portions of both legs can be fitted to the first and second movable guide portions.

(7) In one embodiment of the present invention,
First and second connecting portions each having a base end connected to the first and second rotating shafts and a free end extending from below the seat portion toward the outside of the seat portion;
A first and second slide position adjusting mechanism;
First and second swing angle adjusting mechanisms;
Further comprising
The first and second slide position adjusting mechanisms slide the first and second swing angle adjusting mechanisms along the first and second directions with respect to the first and second connecting portions, respectively. Movably supported, adjusting the slide positions of the first and second swing angle adjusting mechanisms,
The first and second swing angle adjusting mechanisms support the first and second movable guide portions so as to be swingable with respect to the first and second slide position adjusting mechanisms. The swing angle of the second movable guide portion can be adjusted.

  In this way, even if the height displacement between the seat and the first and second movable guides is increased by the height displacement adjustment mechanism (seat height adjustment mechanism), the first and second movable guides The inclination angle and the center position can be fitted to, for example, the knee joints of both legs.

(8) In one aspect of the present invention, the first and second swing angle adjustment mechanisms include:
First and second swing guide portions respectively connected to the first and second connection portions;
First and second swinging portions that are respectively fixed to the first and second movable guide portions and are swingably guided by the first and second swing guide portions, respectively;
Two second fixing portions for fixing the first and second swing portions to the first and second swing guide portions, respectively.
Can have.

(9) In one aspect of the present invention, the first and second slide position adjustment mechanisms include:
First and second sliders that are slidably guided by the first and second connecting portions, respectively;
Two second fixing portions for fixing the first and second sliders to the first and second connecting portions, respectively;
Can have.

(10) In one aspect of the present invention, the first and second slide position adjustment mechanisms include:
First and second sliders that are slidably guided by the first and second connecting portions, respectively;
Two second fixing portions for fixing the first and second sliders to the first and second connecting portions, respectively;
Have
The first and second swing angle adjusting mechanisms are:
First and second swing guide portions respectively coupled to the first and second sliders;
First and second swinging portions that are respectively fixed to the first and second movable guide portions and are swingably guided by the first and second swing guide portions, respectively;
Two third fixing portions for fixing the first and second swing portions to the first and second swing guide portions, respectively.
Can have.

It is the perspective view which looked at the training apparatus concerning one embodiment of the present invention from the front. It is a perspective view which shows the training apparatus shown in FIG. 1 in the usage pattern different from FIG. It is a top view of the training apparatus shown in FIG. It is the schematic which shows a part of load action part of the training apparatus shown in FIG. It is a front view explaining the use condition at the time of an open leg in the training apparatus shown in FIG. It is a front view explaining the other usage condition at the time of an open leg in the training apparatus shown in FIG. It is a figure for demonstrating the effect | action of a load adjustment part.

  Hereinafter, preferred embodiments of the present invention will be described in detail. The present embodiment described below does not unduly limit the contents of the present invention described in the claims, and all the configurations described in the present embodiment are indispensable as means for solving the present invention. Not necessarily.

1. FIG. 1 is a perspective view of a training device according to an embodiment of the present invention as seen from the front, FIG. 3 is a plan view of the training device, and FIG. 4 shows a part of a load operating unit. FIG. The present embodiment is an example in which the present invention is applied to an inner side.

  In FIG. 1, a training apparatus (inner rhinoceros) has a main body frame 1 as a skeleton. The main body frame 1 can include a lower frame 11, an upper frame 12, and a portal frame 13 as shown in FIGS. 1 to 3. The main body frame 1 includes a seat portion 20, first and second movable guide portions 30A and 30B, first and second rotating shafts 40A and 40B, a tuning mechanism 50, a load acting portion 60, A height displacement adjusting mechanism 70 is supported.

  A user is seated on the seat 20. The seat 20 is supported by the lower frame 11 of the main body frame 1 via a seat height adjustment mechanism 70 as a height displacement adjustment mechanism. In the present embodiment, the seat surface of the seat portion 20 is, for example, a horizontal plane. Further, in the present embodiment, the dorsal fin part 22 is supported separately from the seat part 20, and the dorsal fin part 22 is fixed, for example, vertically to the upper frame 12, for example.

  As shown in FIG. 3, the first movable guide portion 30 </ b> A includes a flat first contact portion 31 </ b> A that contacts the back surface of the user's leg, for example, the knee joint portion, and a user's leg portion, for example, the knee joint portion. A second abutting portion 32A that abuts on the inner surface is included. Similarly, the second movable guide portion 30B can include a first contact portion 31B and a second contact portion 32B.

  The first and second rotation shafts 40 </ b> A and 40 </ b> B are disposed below the seat portion 20. The first rotation shaft 40A supports the first movable guide portion 30A so as to be rotatable. The second rotation shaft 40B supports the second movable guide portion 30B so as to be rotatable. As shown in FIG. 1, the first and second rotation shafts 40A and 40B are rotatably supported by the lower frame 11 and the intermediate frame 14 above the lower frame 11, respectively.

  In this embodiment, in order to connect the first and second movable guide portions 30A and 30B to the first and second rotating shafts 40A and 40B, the first and second slide position adjusting mechanisms 90A and 90B and the first and second swing angle adjusting mechanisms 100A and 100B are interposed. These intervening elements will be described later.

  The tuning mechanism 50 is also disposed below the seat portion 20. The tuning mechanism 50 synchronizes the first and second rotation shafts 40A and 40B in opposite directions and substantially the same rotation amount. As shown in FIG. 1, the tuning mechanism 50 meshes with the first tuning gear 50A fixed to the first rotating shaft 40A and the first tuning gear 50A fixed to the second rotating shaft 40B. And a second tuning gear 50B.

  The load acting portion 60 resists the rotation of the first and second movable guide portions 30A and 30B accompanying the user's leg opening or closing movement, and at least the first and second rotation shafts 40A and 40B. On the other hand, for example, a load is applied to the second rotating shaft 40B. As shown in FIG. 4, the load acting unit 60 includes a weight 62 that is supported by the portal frame 13 and can be moved up and down along a plurality of guide shafts 61. The load of the weight 62 is transmitted by the wire 63 and acts as a load on the second rotating shaft 40B.

  As shown in FIGS. 3 and 4, the wire 63 connected to the weight 62 includes first and second pulleys 64 and 65 supported by the upper frame 12, and third and fourth supported by the lower frame 11. It is routed to the second rotating shaft 40B side via pulleys 66 and 67.

  In the present embodiment, the excess from the load application unit 60 acts on the second rotation shaft 40B via the load adjustment unit 80. Therefore, the wire 63 is connected to the load adjusting unit 80 as shown in FIGS. 1 and 2. The load adjustment unit 80 will be described later.

2. Height displacement adjustment mechanism (seat height adjustment mechanism)
The height displacement adjusting mechanism 70 adjusts the height displacement between the seat portion 20 and the first and second movable guide portions 30A and 30B. In the present embodiment, the height displacement adjustment mechanism 70 adjusts the height position of the seat portion 20 with the arrow A in FIG. 2 with respect to the fixed height of the first and second movable guide portions 30A and 30B. Thus, the height displacement between the seat portion 20 and the first and second movable guide portions 30A and 30B is adjusted.

  Here, by adjusting the height displacement between the seat portion 20 and the first and second movable guide portions 30A and 30B by the height adjustment mechanism 70 which is one of the features of the present embodiment, for example, The use state shown in FIG. 5 and the use state shown in FIG. 6 can be realized.

  As the height of the first and second movable guide portions 30A and 30B, for example, the height of the flat surface of the first contact portions 31A and 31B is employed. As will be described later, the first contact portions 31A and 31B of the present embodiment can swing (see FIG. 6), and the flat surfaces of the first contact portions 31A and 31B may not be horizontal. Therefore, as the height of the oscillated first and second movable guide portions 30A and 30B, for example, the height of the flat surface at the center position of the first contact portions 31A and 31B (if the flat surface is horizontal) The center and the periphery are the same height). The heights of the first and second movable guide portions 30A and 30B are not limited to those described above, and a certain reference position height can be employed.

  In FIG. 5, the heights of the seat portion 20 and the first and second movable guide portions 30A, 30B (first contact portions 31A, 31B) are both equal to H1. That is, the height displacement between the seat portion 20 and the first and second movable guide portions 30A and 30B is zero.

  On the other hand, in FIG. 6, the heights of the first and second movable guide portions 30A and 30B (center positions of the first contact portions 31A and 31B) are substantially equal to the height H1 in FIG. By the displacement adjustment mechanism 70, the height of the seat portion 20 is set to H2, which is higher than H1. That is, the height displacement between the seat portion 20 and the first and second movable guide portions 30A and 30B is (H2-H1).

  As can be seen from the comparison between FIG. 5 and FIG. 6, the open leg posture of FIG. 5 can only be reproduced by a user with high body flexibility, but the open leg posture of FIG. I understand that even a person can take it.

  Here, as in Patent Documents 1 to 3 and 5, if the knee is bent and seated in the first place, there is no need for an open leg posture as shown in FIG. A sufficient training effect cannot be expected. Therefore, in order to make the training apparatus attractive to a skilled user, the leg position shown in FIG. 5 must be possible.

  Therefore, in the present embodiment, the first and second movable guide portions 30A and 30B include the flat first and second contact portions 31A and 31B that are in contact with the back surface of the user's leg portion, for example, the knee joint portion. Decided to have. As a result, the user's legs extend almost straight and the knees are bent so as not to be seated. In particular, the height displacement adjusting mechanism 70 is added for a user with low body flexibility that cannot take the open leg posture of FIG.

  As the height displacement between the seat portion 20 and the first and second movable guide portions 30A and 30B is increased by the height displacement adjusting mechanism 70, the burden on the leg opening posture to the user can be reduced. Adjustment by the height displacement adjustment mechanism 70 can correspond to the flexibility of the user's hip joint and buttocks, and training can be performed while reducing unnecessary stress on the user. As a result, even users with low body flexibility can easily perform training to increase dynamic flexibility, and users with high body flexibility can select various movements and loads.

  As another reason for adding the height displacement adjusting mechanism 70, various types of training with a level difference are possible. For example, the movement of bending one knee to improve the inside / outside turning function of the hip joint can be applied to a user with low body flexibility by adjusting the height displacement adjusting mechanism 70.

  In the present embodiment, the height displacement adjustment mechanism 70 can be configured as a seat height adjustment mechanism. As shown in FIG. 2, the seat height adjustment mechanism 70 can include a fixed column 71, a movable column 72, and a first fixed unit 73. The fixed support 71 extends vertically below the seat portion 20 at a position where it does not interfere with the tuning mechanism 50 as shown in FIG. The fixed column 71 can be formed integrally with the main body frame 1, for example. The movable strut 72 is fixed to the seat 20 and is slid to the fixed strut 71. The fixed support 71 can have a hollow ring shape in cross section, for example, a square frame shape, and the movable support 72 can be received and guided in the hollow portion. The first fixing unit 73 fixes the movable support 71 whose lifting position is adjusted to the fixed support 72. By the seat height adjustment mechanism 70, the height of the seat 20 can be varied, and the height displacement between the seat 20 and the first and second movable guides 30A and 30B can be adjusted.

  As shown in FIG. 2, for example, the movable support 72 has a plurality of holes 72 </ b> A formed at predetermined intervals along the vertical direction, the fixed support 71 has a single hole 71 </ b> A, and the first fixed portion 73. Can be inserted through holes 71A and 72A that coincide in the height direction. When the first fixed portion 73 projects and urges inward of the fixed column 71, the movable column 72 can be moved up and down by pulling out the first fixed portion 73 against the urging force. After the position adjustment of the movable column 72, when the holes 71A and 72A overlap, the first fixing portion 73 is placed in the fixed position by the urging force. Moreover, you may employ | adopt the structure which always urges the movable support | pillar 72 with respect to the fixed support | pillar 71 in one direction using gas or a fluid. This simplifies the height position adjustment.

3. Load Adjusting Unit In the load acting unit 60 of the present embodiment, the leg opening angle θ (for example, 0 ≦ θ ≦ 180 °) of both legs guided by the first and second movable guide units 30A and 30B is θ = 180. It is assumed that the weight 62 shown in FIG. 4 is placed on the lower frame 11 or its placement portion and set so as not to be loaded when the angle is. Therefore, if θ <180 °, the load application unit 60 continues to apply the load.

  When both leg portions guided by the first and second movable guide portions 30A and 30B have the first leg angle θ1 and the second leg angle θ2 narrower than the first leg angle θ1. , Defined as shown in FIG. The second leg opening angle θ2 means an angle closed with respect to the first leg opening angle θ1. As shown in FIG. 7, the load adjusting unit 80 applies a load that is applied to the second rotating shaft 40 </ b> B from the load application unit 60 at the second leg angle θ <b> 2 than at the first leg angle θ <b> 1. Can be reduced.

  The load adjustment unit 80 of the present embodiment extends outward beyond the radius of the second gear 50B (or beyond the lower region of the seat 20) from the base end fixed to the second rotation shaft 40B. A rotating arm 81 is provided, and a wire connecting portion 82 is provided on the free end side of the rotating arm 81.

  Here, let L be the distance from the center of the second rotation shaft 40B to the wire connecting portion 82 of the rotation arm 81. The load acting on the wire 63 is equal to the force F based on the load of the weight 62 at both the first leg angle θ1 and the second leg angle θ2. Of the force F acting on the rotating arm 81 at the first leg opening angle θ1, the component in the direction perpendicular to the longitudinal direction of the arm 81 is F1. Similarly, the component in the direction orthogonal to the longitudinal direction of the arm 81 out of the force F acting on the rotating arm 81 at the second leg opening angle θ2 is F2. As is apparent from FIG. 7, F1> F2.

  On the other hand, the rotational moment M1, which is a load acting on the second rotation shaft 40B at the first leg opening angle θ1, is M1 = F1 × L. Similarly, when the second leg opening angle θ2, the rotational moment M2 that is a load acting on the second rotation shaft 40B is M2 = F2 × L. Since F1> F2, M1> M2 is established. Here, in the present embodiment, the rotating arm 81 is elongated without stopping in the region below the seat portion 20, so that the moment load can be increased without increasing the weight of the weight 62, and the apparatus can be downsized. .

  The fact that M1> M2 is established means that the load gradually decreases when both legs mainly used in inner rhino training are closed, and conversely, when both legs are opened, the load gradually increases. Therefore, since the load is gradually reduced as the user closes both legs, the user can perform the closing leg operation without difficulty, and the shortening force (relaxation force) of the adductor muscle group can be improved and strengthened. In addition, when trying to open both legs, the load gradually increases or increases from the initial movement, thereby enabling the muscle extension (tension) state in addition to the shortening (relaxation) of the adductor muscle group.

  In daily activities, such as going up and down stairs or riding a bicycle, there are few movements that start with muscle shortening. By repeatedly opening and closing both legs in the apparatus of the present embodiment, extension and shortening can be alternately repeated, and the dynamic flexibility of the adductor muscle group can be ensured.

  On the other hand, the devices disclosed in Patent Documents 1 to 3 and 5 focus on shortening the muscles and exercise in a relatively easy posture with the knee bent, so that depending on the user, as shown in FIG. Therefore, it can be said that there was no requirement to change the height displacement between the seat and the pad.

  Note that some of the prior arts ensure a more comfortable posture by inclining the seat and dorsal part, but the link between the adductor muscle group and the hip joint is impaired thereby. Therefore, in this embodiment, the seat part 20 is horizontal and the dorsal part 22 is vertical. However, the present invention does not prevent the seat portion and the back portion from being inclined.

4). The structure of the lower region of the seat portion In the present embodiment, since the seat height adjusting mechanism 70 is provided, the structure of the lower region of the seat portion 20 needs to be simplified. This is because the seat height adjustment mechanism 70 is slid and guided to the fixed column 71 with the seat 20 fixed to the fixed column 71 that extends vertically below the seat unit 20 at a position that does not interfere with the tuning mechanism 50. This is because it is necessary to provide the movable support 72.

  In patent documents 1-3 and 5, as above-mentioned, it was occupied by the other member so that there was no space which arrange | positions a fixed support | pillar in the downward region of a seat part. In fact, in Patent Documents 1 to 3 and 5, there is no column supporting the seat below the seat.

  In the present embodiment, in order to support the seat portion 20, it is separated into the fixed support 71 and the movable support 72, and the strength of each support 71, 72 cannot be ensured excessively from the downsizing of the entire apparatus. A fixed support 71 and a movable support 72 are erected vertically below.

  The first and second rotary shafts 40A and 40B for the first and second movable guide portions 30A and 30B need to be arranged with priority in the vicinity of the center below the seat portion 20. It is because it is necessary to arrange | position the 1st, 2nd rotating shaft 40A, 40B close to the opening-and-closing center position of a user's both leg part. Otherwise, the opening / closing operation of both legs and the movements of the first and second movable guide portions 30A, 30B will be inconsistent, the smooth opening / closing operation of both legs will be hindered, and a muscle that should not be used will be loaded. .

  Although it is easy to arrange the fixed column 71 and the movable column 72 while avoiding the first and second rotating shafts 40A and 40B, the area occupied by other accessories must also be reduced. In the present embodiment, the tuning mechanism 50 is also reduced in size, and is configured by a pair of first and second tuning gears 50A and 50B having a small diameter as shown in FIG. This is because even if the pitch circles of the pair of first and second tuning gears 50A and 50B are reduced, the synchronizing operation can be ensured as long as they can mesh with each other as long as they can withstand the load. Thus, for the first time, it is possible to secure a space in which the fixed column 71 and the movable column 72 are erected vertically below the seat 20. In addition, the fixed support 71 is arranged at a position close to the limit where it does not interfere with the tuning mechanism 20, so that the fixed support 71 and the movable support 72 are erected vertically so as to be biased to a position close to the center below the seat portion 20. Space can be secured. Thereby, the strength of the fixed support 71 and the movable support 72 does not need to be excessively increased, and the size can be reduced. In addition, the upper end side of the movable support column 72 can be bent horizontally to form an L shape, and the contact area with the seat portion 20 can be increased to improve the support strength.

  Furthermore, in this embodiment, it has the load adjustment part 80 between the 2nd rotation axis part 40B and the wire 63 of the load action part 60, and this load adjustment part 80 is in the 2nd rotation axis part 40B. Since they are connected, a part of the space below the seat portion 20 is closed.

  In this embodiment, in order to minimize the area where the load adjusting unit 80 occupies the space below the seat portion 20, the load adjusting unit 80 is formed by the rotating arm 81 connected to the second rotating shaft portion 40B. The width of the turning arm 81 can be made sufficiently smaller than the diameter of the second gear 50B, and can overlap the area of the second connecting portion 91B. Increase in the occupied area can be minimized or eliminated.

5. As described above, in the present embodiment, in order to connect the first and second movable guide portions 30A and 30B to the first and second rotating shafts 40A and 40B. The first and second slide position adjusting mechanisms 90A and 90B and the first and second swing angle adjusting mechanisms 100A and 100B are interposed.

  Here, the first and second swing angle adjusting mechanisms 100A and 100B will be described. As shown in FIG. 6, when the height displacement between the seat portion 20 and the first and second movable guide portions 30A and 30B is increased by the height displacement adjustment mechanism (seat portion height adjustment mechanism) 70, the user. The leg portion extends obliquely downward from the height of the seat portion 20. On the other hand, in the present embodiment, since the first contact portions 31A and 31B of the first and second movable guide portions 30A and 30B are flat surfaces, both legs extending with inclination as the height displacement of the seat portion 20 increases. Will not fit on a flat surface.

  Therefore, the first and second swing angle adjusting mechanisms 100A and 100B are provided in parallel with the height displacement adjusting mechanism (seat height adjusting mechanism) 70. The first and second swing angle adjustment mechanisms 100A and 100B are configured by the first and second slide position adjustment mechanisms 90A and 90B and the first and second movable guide portions 30A and 30B as in the present embodiment. The first and second slide position adjusting mechanisms 90A and 90B are not necessarily required, although they may be provided between them.

  Here, in this embodiment, as shown in FIG. 2, it can have 1st, 2nd connection part 91A, 91B each fixed to the 1st, 2nd rotating shaft 40A, 40B. When the first and second slide position adjusting mechanisms 90A and 90B are not present, the first and second swing angle adjusting mechanisms 100A and 100B are connected to the first and second connecting portions 91A and 91B and the first connecting portions 91A and 91B, respectively. , And can be provided between the second movable guide portions 30A and 30B.

  The first and second swing angle adjusting mechanisms 100A and 100B are the first and second connecting portions 91A and 91B (or the first and second sliders of the first and second slide position adjusting mechanisms 90A and 90B). 101A and 101B), the first and second movable guide portions 30A and 30B are supported so as to be swingable, and the swing angles of the first and second movable guide portions 30A and 30B (in the direction of arrow B in FIG. 2). Respectively). The state adjusted by the first and second swing angle adjusting mechanisms 100A and 100B is as shown in FIG. 6, and the user's legs are connected to the first and first legs in the use situation of FIG. 6 as in the use situation of FIG. The two contact portions 31A and 31B can be fitted.

  As shown in FIG. 2, the first and second swing angle adjusting mechanisms 100A and 100B are connected to the first and second connecting portions 91A and 91B (or the first and second slide position adjusting mechanisms 90A and 90B, respectively). The first and second swing guide portions 101A and 101B connected to the first and second sliders 101A and 101B, respectively, and the first and second movable guide portions 30A and 30B are fixed to the first and second sliders 101A and 101B, respectively. , First and second swinging portions 102A and 102B, and first and second swinging portions, which are swing-guided around swing centers 101A1 and 101B1 of the second swing guide portions 101A and 101B, respectively. Two second fixing portions (or third fixing portions) 103B for fixing 102A and 102B to the first and second swing guide portions 101A and 101B, respectively, can be provided.

  The first and second swinging portions 102A and 102B are provided with a plurality of holes (not shown) on arcs centered on the swinging centers 101A1 and 101B1, respectively, so that a height displacement adjusting mechanism is provided. It is possible to adjust according to the same principle as that of 70.

6). First and Second Slide Position Adjustment Mechanisms Next, the first and second slide position adjustment mechanisms 90A and 90B will be described. As shown in FIG. 6, when the height displacement between the seat portion 20 and the first and second movable guide portions 30A and 30B is increased by the height displacement adjustment mechanism (seat portion height adjustment mechanism) 70, the user. The reference position of both legs, for example, the distance between the knee joints, is shortened. On the other hand, since the width of the first and second movable guide portions 30A and 30B is finite, the knee joint portion becomes the center of the first and second movable guide portions 30A and 30B as the height displacement of the seat portion 20 increases. And will not fit.

  Therefore, the first and second slide position adjusting mechanisms 90A and 90B are provided in parallel with the height displacement adjusting mechanism (seat height adjusting mechanism) 70. Although the first and second slide position adjustment mechanisms 90A and 90B may be provided together with the first and second swing angle adjustment mechanisms 100A and 100B as in the present embodiment, the first and second slide position adjustment mechanisms 90A and 90B may be provided. The swing angle adjustment mechanisms 100A and 100B are not necessarily required. By changing the distance between the first and second movable guide portions 30A and 30B by the first and second slide position adjusting mechanisms 90A and 90B, the user in the usage situation of FIG. 6 is the same as the usage situation of FIG. For example, the knee joint portions of both legs can be fitted to the first and second movable guide portions 30A and 30B.

  As shown in FIG. 2, the first and second slide position adjusting mechanisms 90A and 90B are first and second sliders that are slid and guided in the C direction by the first and second connecting portions 91A and 91B, respectively. 92A and 92B, and two second fixing portions 93A and 93B for fixing the first and second sliders 92A and 92B to the first and second connecting portions 91A and 91B, respectively. By providing a plurality of holes (not shown) in the first and second connecting portions 91 </ b> A and 91 </ b> B, the adjustment can be made on the same principle as that of the height displacement adjusting mechanism 70.

7). In addition to the first and second slide position adjusting mechanisms and the first and second swing angle adjusting mechanisms, in the present embodiment, the first and second movable guide portions 30A and 30B are rotated in the first and second directions. In order to connect to the shafts 40A and 40B, the first and second slide position adjusting mechanisms 90A and 90B and the first and second swing angle adjusting mechanisms 100A and 100B are interposed. As a result, as shown in FIG. 6, the height displacement adjustment mechanism (seat height adjustment mechanism) 70 increases the height displacement between the seat portion 20 and the first and second movable guide portions 30A and 30B. However, the inclination angle and the center position of the first and second movable guide portions 30A and 30B can be fitted to, for example, the knee joint portions of both legs.

  Although the present embodiment has been described in detail as described above, those skilled in the art can easily understand that many modifications can be made without departing from the novel matters and effects of the present invention. Accordingly, all such modifications are intended to be included in the scope of the present invention. For example, a term described at least once together with a different term having a broader meaning or the same meaning in the specification or the drawings can be replaced with the different term in any part of the specification or the drawings.

  For example, the present invention is not limited to those applied to the inner rhy according to the above-described embodiment, but may be applied to the inner rhino / outer rhino switching type training apparatus and the outer rhino dedicated apparatus shown in Patent Documents 1 to 3. Can do.

  When the present invention is applied to an inner size / outer size switching type training device, the first and second movable guide portions 30A, 30B are second contact portions that contact the inner side surface and the outer side surface of the leg portion of the user. Can have. Further, switching to the inner size / outer size may be performed by a switching lever disclosed in Patent Documents 1 and 2 and the like.

  When the present invention is applied to the outer die, the first and second movable guide portions 30A and 30B can have a second contact portion that contacts the outer surface of the leg portion of the user. Further, the load on the first and second movable guide portions 30A and 30B may be unloaded at the initial position where both legs are closed.

  DESCRIPTION OF SYMBOLS 1 Main body frame, 11 Lower frame, 12 Upper frame, 13 Portal frame, 14 Intermediate frame, 20 Seat part, 30A 1st movable guide part, 30B 2nd movable guide part, 40A 1st rotating shaft, 40B Second rotating shaft, 50 tuning mechanism, 50A first tuning gear, 50B second tuning gear, 60 load acting portion, 61 guide shaft, 62 weight, 63 wire, 64-67 pulley, 70 height displacement adjustment Mechanism (seat height adjustment mechanism), 71 fixed column, 72 movable column, 72A hole, 73 first fixed unit, 80 load adjusting unit, 81 rotating arm, 82 wire connecting unit, 90A first slide position adjustment Mechanism, 90B second slide position adjusting mechanism, 91A first connecting portion, 91B second connecting portion, 93A, 93B second fixing portion, 100A first swinging mechanism Dynamic angle adjusting mechanism, 100B second swing angle adjusting mechanism, 101A first swing guide portion, 101B second swing guide portion, 101A1, 101B1 swing center, 102A first swing portion, 102B second 2 swinging parts, 103A, 103B second fixing part (third fixing part), A height displacement adjusting direction, B swinging angle adjusting direction, C slide position adjusting direction

Claims (5)

A seat where the user sits;
A flat first contact portion that contacts the back surface of the leg portion that is opened and closed with the user's knee extended, and a second contact that contacts the inner side surface and / or the outer side surface of the user's leg portion. And first and second movable guide portions each including a contact portion;
First and second rotation shafts disposed below the seat portion and rotatably supporting the first and second movable guide portions,
A tuning mechanism that is disposed below the seat and that synchronizes the first and second rotation shafts in opposite directions and substantially the same rotation amount;
A load acting portion that applies a load to at least one of the first and second rotation shafts against the rotation of the first and second movable guide portions;
A height displacement adjusting mechanism for adjusting a height displacement between the seat portion and the first and second movable guide portions;
First and second connecting portions each having a base end connected to the first and second rotating shafts and a free end extending from below the seat portion toward the outside of the seat portion;
The first and second movable guides are swingably supported with respect to the first and second connecting portions, and the first and second movable guides are respectively adjusted to swing angles. , A second swing angle adjusting mechanism . In claim 1,
The height displacement adjustment mechanism has a seat height adjustment mechanism,
The seat height adjustment mechanism is
Below the seat, a fixed support column that extends vertically at a position that does not interfere with the tuning mechanism,
A movable strut to which the seat portion is fixed and slidably guided to the fixed strut;
A first fixing portion for fixing the movable column to the fixed column;
A training apparatus comprising: In claim 2,
When both leg portions guided by the first and second movable guide portions are at a second leg opening angle that is narrower than the first leg opening angle than at a first leg opening angle, The training apparatus further comprising a load adjusting unit that reduces a load applied to one of the first and second rotating shafts. In claim 3,
The tuning mechanism includes two tuning gears fixed to the first and second rotating shafts and meshing with each other,
The load adjusting unit includes a rotating arm having a base end fixed to one of the first and second rotating shafts and a free end extending in a radial direction beyond the outer peripheral radius of the two tuning gears,
The training apparatus according to claim 1, wherein a load of the load application unit is applied to the free end side of the rotating arm. In any one of Claims 1 thru | or 4,
Before SL first, the relative second coupling part first, the second movable guide portion first, respectively slidably supported along a second direction, said first, second movable First and second slide position adjustment mechanisms for adjusting the slide positions of the guide portions, respectively;
The training apparatus further comprising:

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