JP5567936B2 - Training equipment - Google Patents

Description

  The present invention relates to a training apparatus that moves a muscle or a joint of a body by a user moving and operating an operation unit against a load.

  2. Description of the Related Art Training apparatuses for developing or strengthening body muscles or joints by moving a movable part against a load such as a weight are known. As this type of training device, a device in which a load such as a weight continues to act during a moving operation of the movable part is generally used. This type of load is suitable for training to maintain muscle tension and strengthen muscles.

  On the other hand, a training apparatus that enables a relaxed state of muscles in addition to a strained state of muscles by gradually decreasing or decreasing the load from the initial movement has been proposed. The method of giving such a load is not intended to develop enlarged muscles, but rather to contribute to the development of flexible muscles.

  Patent Documents 1 to 7 propose a training device that can gradually reduce or reduce the load, or release the load. Patent Documents 8 to 10 disclose techniques for adjusting the interval between operation units operated by a user in a training apparatus.

JP 59-139279 A (FIGS. 2 to 4) Japanese Patent No. 4054784 (FIGS. 1 to 7) JP 2004-135800 A (FIGS. 1 to 8) JP 2008-264336 A (FIGS. 1 to 4) Japanese Utility Model Publication No. 7-30034 (FIGS. 1-2) WO 2007/144945 (0011) JP 2008-55011 A (0029) JP2007-29625A (FIGS. 3 to 4 and 6) Japanese Utility Model Publication No. 7-13737 (FIG. 3) Japanese Patent No. 2730882 (FIG. 5)

  Patent Document 1 discloses a pulley connected with a chain or a wire connected to a weight having a constant weight, a cam having a special contour rotating coaxially with the pulley, and one end connected to the cam. The leg press apparatus which has a foot pedal with which the other ends, such as a wound chain and a wire, are connected is proposed. Depending on the position of the foot pedal, the length of the moment arm of the cam changes, and the load is gradually reduced or gradually increased from the initial movement. For example, as shown in FIG. 2 of Patent Document 1, the maximum load (about 244 kg) at the initial stage of extending the leg was gradually reduced to the minimum load (about 91 kg) in the intermediate bending / extension state shown in FIG. 3 of Patent Document 1. To do. Thereafter, as shown in FIG. 4 of Patent Document 1, the load gradually increases to about 183 kg at the time of maximum bending and stretching.

  Patent Documents 2 to 4 also propose a training device for arm curl, arm extension, or leg press using the same principle as Patent Document 1. In Patent Documents 2 to 4, the length of the moment arm of the deformation cam is changed from the time of the initial movement, with at least one pulley wound around a chain or wire connected to a constant weight weight as a deformation cam. The load is gradually decreased or increased with continuity.

  In Patent Documents 1 to 4, the contour of the cam must be formed so that the length of the moment arm changes according to the magnitude of the load to be applied. Such a specially shaped cam is difficult to machine, and its machining cost is added to the cost of the training device.

  In Patent Document 5, a one-way clutch is provided between a hub and a friction plate connected to a rotation operation arm, and a friction force generated between the hub and the friction plate is transmitted to or released from the rotation operation arm. Through a one-way clutch. In this way, a load can be applied to the rotary operation arm or no load can be applied. However, the load cannot be gradually decreased or increased, and a large load cannot be expected only by the frictional force.

  Patent Document 6 describes that in order to enable a relaxing operation, there is a margin in the length of the chain connected to the weight, or the load direction and the relaxation direction are switched by a gear or a switch. However, these structures are not disclosed in the drawings, and the details of the structures are unknown.

  In Patent Document 7, an operation part is provided at one end of an intermediate fulcrum of a swinging arm like a seesaw, and a weight is disposed between the intermediate fulcrum and the operation part or at the other end of the intermediate fulcrum. In this configuration, the load can be increased or decreased by changing the distance between the fulcrum and the load action line. However, since the weight is supported by the arm integrated with the operation unit, it is dangerous to place a heavy weight, and the load is limited.

  As described above, conventionally, in order to change the magnitude of the load with continuity from the initial operation, a chain or a wire connecting a weight of a constant weight and an operation unit is wound and a pulley or pulley is used as a deformation cam. No effective method has been proposed.

  Japanese Patent Laid-Open No. 2004-228561 makes it possible to slide two grips gripped with both hands along the operation arm in a training device for arm curl or arm extension, and to adjust the interval between the two grips. However, even if the interval between the two grips can be adjusted, each of the two grips slides independently, so that the center position of the two grips is deviated from the center position of the training apparatus. This problem also occurs in Patent Document 9 having a mechanism that enables sliding of an arm that supports two grips. Moreover, in Patent Documents 8 and 9, the grip interval that is the same amount as the sliding movement amount of the two arms cannot be adjusted.

  Patent Document 10 proposes a training device that can adjust the interval between two arm pads that are opened and closed by both arms against a load in the initial state of no load. Two sector gears that mesh with each other are fixed to the rotation shafts of the two arm pads operated by the user, and the two arm pads can be moved symmetrically.

  In such a training apparatus, in order to adjust the interval between the two arm pads, each of the two arm pads is supported so as to be swingable with respect to a horizontal arm fixed to the rotation shaft, and has a predetermined swing angle. Can be selected by a desorption pin (FIG. 4 of Patent Document 10 and paragraph 0013). Therefore, in order to adjust the interval between the two arm pads, the swing angles of the two arm pads with respect to the horizontal arm must be individually adjusted. That is, in Patent Document 10 as well as Patent Documents 8 and 9, even though the distance between the two grips can be adjusted, each of the two grips moves independently. There is a drawback that the center position shifts.

  Furthermore, this type of training device uses a weight to apply a load to the operation unit. For example, as shown in FIGS. 1 to 4 of Patent Document 6, the weight protrudes from the side or back of the training device. It was provided. This type of training device tends to spread to hospitals, rehabilitation facilities, and even homes in the future, and downsizing of the device has been desired.

  Accordingly, some aspects of the present invention have an object to provide a training device having a new and simple structure capable of changing the magnitude of a load without using a deformation cam.

  Some other aspects of the present invention provide a training device having a new and simple structure in which two operation units operated by a user are moved in synchronization to adjust an interval between the two operation units. With the goal.

  Still another aspect of the present invention is to provide a training apparatus that can be made compact by placing weights in a dead space while applying a load using the weights.

One aspect of the present invention is a training apparatus that moves a muscle or a joint of a body by a user moving and operating an operation unit against a load.
A support member that supports the operation unit in a reciprocating manner;
At least one weight that is rotatably supported by the pivoting fulcrum and varies the moment around the pivoting fulcrum by forward and reverse rotation;
A connecting member that connects the support member and the weight and rotates the weight in the forward / reverse direction in conjunction with the reciprocating movement of the operation unit;
It is characterized by having.

  In one aspect of the present invention, when the user operates the operation unit, the weight is rotated around the rotation fulcrum via the support member and the connecting member. This displacement of the weight changes the moment around the rotation fulcrum, so that the magnitude of the load to be resisted when the user moves the operation unit is changed. Therefore, in one aspect of the present invention, it is possible to provide a training device that can change the magnitude of the load during the reciprocating operation of the operation unit without using a special deformation cam.

  In one aspect of the present invention, a weight support member having one end rotatably supported by the rotation fulcrum and the other end extending to a rotation radius is further provided, and the at least one weight is attached to the weight support member. The connecting member can connect the support member and the weight support member.

  If it carries out like this, the magnitude | size of a load can be changed according to a user's intention by changing the number or weight of the weight mounted in a weight support member.

  In one aspect of the present invention, the weight support member may include a plurality of support portions that support the at least one weight by varying a distance from the rotation fulcrum to the center of gravity of the at least one weight.

  In this way, by attaching at least one weight to one or more support portions selected from among the plurality of support portions, the distance from the pivot point to the center of gravity of at least one weight can be made different. In this way, the moment around the rotation fulcrum can be changed, so that the variable width of the load can be increased by using a smaller number of weights.

  In one aspect of the present invention, the weight support member varies the distance from the rotation fulcrum to the center of gravity of the at least one weight by varying the mounting posture of the at least one weight. It can have at least one support part which supports a weight.

  By attaching at least one weight to the support portion while changing its posture in the vertical direction or the horizontal direction, the distance from the pivot point to the center of gravity of the at least one weight can be made different. In this way, the moment around the rotation fulcrum can be changed, so that the variable width of the load can be increased by using a smaller number of weights.

  In one aspect of the present invention, it further includes a pulley that rotates in the forward and reverse directions around the rotation fulcrum, and the weight has the center of gravity provided at a position eccentric from the rotation fulcrum of the pulley. The connection member may include a string-like member attached to a pulley and having one end fixed to the pulley and wound around the pulley according to the rotation of the pulley.

  As described above, even if the weight is supported at a position eccentric from the rotation fulcrum of the pulley, the length of the moment arm passing through the center of gravity of the weight provided on the pulley that rotates in conjunction with the movement operation of the operation unit changes. To do. As a result, the moment around the rotation fulcrum changes and the load can be changed.

  In one aspect of the present invention, the support member is supported by a swing fulcrum and an intermediate position in the longitudinal direction so as to be swingable by the swing fulcrum, and the operation portion is supported on one end side in the longitudinal direction, And a swing arm connected to the connecting member at the other end in the longitudinal direction.

  When the operating portion at one end of the swing arm is thus moved, the other end of the swing arm is displaced, and thereby the weight can be rotated around the rotation fulcrum via the connecting member.

  In one aspect of the present invention, the support member includes a parallel link mechanism including a plurality of fulcrums and a plurality of links, the operation unit is guided to translate by the parallel link mechanism, and the connecting member is the parallel member. It may be connected to one of the plurality of links of the link mechanism at a position away from the plurality of fulcrums.

  Even in this case, when the operating portion is guided and moved in parallel by the parallel link mechanism, the weight can be rotated around the rotation fulcrum via the connecting member by the parallel link mechanism.

  In one aspect of the present invention, the support member further includes a support column, a lifting unit that can be moved up and down with respect to the support column, and a height adjustment device that adjusts a height position of the lifting unit with respect to the support column. The rotation fulcrum can be supported by the elevating part.

  When the elevating part is raised and lowered by the height adjusting device, the support member supported by the elevating part and the rotation fulcrum are raised and lowered integrally. Since the weight is rotatably supported by the rotation fulcrum and the connecting member connects the weight and the supporting member, even if the lifting unit is raised and lowered, the positional relationship of the supporting member, the weight, and the connecting member can be maintained. There is no need to change the length of the connecting member. By raising and lowering the elevating unit, the height of the operation unit supported by the support member can be set to a position that matches the physique of the user, and the training effect can be enhanced.

Another aspect of the present invention is a training apparatus that moves a muscle or a joint of a body by a user moving up and down the first and second operation units against a load.
A base on which the load acts;
First and second rotation shaft portions supported by the base so as to be rotatable around an axis;
First and second arms each having one end fixed to the first and second rotation shafts and each other connected to the first and second operation parts,
First and second moving bodies respectively fixed to the first and second rotation shaft portions;
Provided on the first and second moving bodies, and using the first and second rotation shafts as fulcrums, the first and second moving bodies are rotationally tuned in opposite directions by substantially the same rotation angle. A tuning mechanism;
Have
By rotating any one of the first and second operation portions connected to the fulcrum shaft with one of the first and second rotation shafts serving as a fulcrum shaft, Two operation units are moved in line symmetry with respect to a center line that bisects between the first and second operation units, and an interval between the first and second operation units is adjusted. To do.

  According to another aspect of the present invention, by rotating one of the first and second operation units, the first and second operation units are moved symmetrically with respect to the center line, The interval between the first and second operation units can be adjusted. Therefore, unlike Patent Documents 8 to 10, each of the first and second operation units does not move independently, and the center position between the first and second operation units is different from the center position of the training device. It can prevent shifting. Further, the training exercise for moving the first and second operation units up and down changes the interval adjustment between the first and second operation units by rotating one of the first and second operation units. It is not a thing.

In another aspect of the invention,
The tuning mechanism is
According to the rotation of the first movable body in one direction with the first rotation axis as a fulcrum, the second rotation body in the other direction with the second rotation axis as the predetermined angle. A first rotation transmission mechanism that rotates only by;
According to the rotation of the second moving body in one direction with the second rotation axis as a fulcrum, the first movement body in the other direction with the first rotation axis as the fulcrum A second rotation transmission mechanism that rotates only by;
And the tuning mechanism can maintain the first and second moving bodies themselves disengaged.

  In this way, the first and second moving bodies themselves can be disengaged, so that it is not necessary to use gears that mesh with each other as the first and second moving bodies in order to move synchronously, thereby reducing the cost of the apparatus. be able to.

In another aspect of the invention,
The tuning mechanism is
A first cam and a first cam follower provided in the first moving body;
A second cam and a second cam follower provided in the second moving body;
Including
The first cam follower may be guided by the second cam, and the second cam follower may be guided by the first cam.

  In this case, the first rotation transmission mechanism can be formed by the first cam and the second cam follower, and the second rotation transmission mechanism can be formed by the second cam and the first cam follower. Also in this case, expensive gears for synchronous movement can be eliminated.

  In another aspect of the present invention, at least a surface of the first and second cam followers can be formed by an elastic member.

  Thus, the first and second cam followers can be pressed against the first and second cams so as to be elastically deformable, and a resistance force can be added to the rotation of the first and second rotation shafts. . Thus, the first and second operation units are held at the interval adjustment position.

  In another aspect of the present invention, a long hole is formed in the first and second moving bodies on which at least one of the first and second cam followers is supported, and the first hole is within the range of the long hole. , The mounting position of at least one of the second cam followers can be adjusted.

  In this way, it is possible to adjust the pressing force with which the first and second cam followers are pressed against the first and second cams. Thereby, the holding force with which the first and second operation units are held at the interval adjustment position can be adjusted.

  In another aspect of the invention, the first cam is an end face cam formed on an outer edge surface of the first moving body, and the second cam is formed on an outer edge surface of the second moving body. The end face cam can be made.

  If it carries out like this, the 1st, 2nd cam can be formed by processing the outer edge surface of the 1st, 2nd moving body, the number of members can be reduced, and cost reduction can be aimed at more.

In another aspect of the present invention, the tuning mechanism includes first and second links that are supported by the first and second movable bodies and are arranged to cross each other.
In the first moving body, the first and second fulcrums are spaced apart, and in the second moving body, the third and fourth fulcrums are spaced apart,
One end of the first link is rotatably supported by the first fulcrum provided on the first moving body, and the other end of the first link is provided on the second moving body. Rotatably supported by the fourth fulcrum,
One end of the second link is rotatably supported by the third fulcrum provided on the second moving body, and the other end of the second link is provided on the first moving body. Rotatably supported by the second fulcrum,
When the first and second rotation shaft portions are rotated in the first rotation direction opposite to each other, the distance between the first fulcrum and the third fulcrum decreases, and the second When the distance between the fulcrum and the fourth fulcrum increases, and the first and second shafts rotate in the second rotation direction opposite to the first rotation direction. The distance between the first fulcrum and the third fulcrum is increased, the distance between the second fulcrum and the fourth fulcrum is decreased, and the first and second operating portions are The distance between the first and second operation portions can be made variable by moving symmetrically with respect to the center line.

  In this case, the first rotation transmission mechanism is the first link, and the second rotation transmission mechanism is the second link. When the first and second operation portions are rotated in the first rotation direction or the second rotation direction opposite to the first rotation direction around the first and second rotation shaft portions, the first and second rotation portions The interval of the operation unit can be changed. At this time, even if the first and second operation parts are moved asymmetrically with respect to the center line, the first and second moving bodies can be synchronously rotated by the first and second links. The first and second operation units move in line symmetry with respect to the center line, and the interval can be changed. In addition, since no gear is used for synchronous movement, the cost of the apparatus can be reduced.

Still another aspect of the present invention provides a training apparatus in which a user moves a muscle or a joint of a body by moving and operating an operation unit against a load.
A support member that supports the operation unit in a reciprocating manner;
A weight displaced in conjunction with the reciprocating movement of the operation unit;
A connecting member for connecting the support member and the weight;
A lower frame arranged on the floor side;
An upper frame facing above the lower frame;
Have
The support member is supported by the lower frame or the upper frame,
The weight is guided and supported so as to be displaceable between the lower frame and the upper frame.

  According to still another aspect of the present invention, since the weight is guided and supported so as to be displaceable in the dead space between the lower frame and the upper frame, the apparatus can be greatly reduced in size.

1 is a schematic perspective view of a training device (dipping device) according to a first embodiment of the present invention. It is a schematic explanatory drawing which shows the specification state of the apparatus shown in FIG. It is a side view which shows the maximum load state in the apparatus shown in FIG. It is a side view which shows the intermediate load state in the apparatus shown in FIG. It is a side view which shows the minimum load state in the apparatus shown in FIG. It is a schematic explanatory drawing of the training apparatus (high pulley apparatus) which concerns on 2nd Embodiment of this invention. It is a figure which shows the use condition which pulled down two grips of the high pulley apparatus shown in FIG. It is a schematic explanatory drawing which shows the modification which made the high pulley apparatus shown in FIG. 6 a simple model. It is a schematic explanatory drawing of the training apparatus (pullover apparatus) which concerns on 3rd Embodiment of this invention. It is a figure which shows the use condition which retracted the operation bar of the pullover apparatus shown in FIG. It is a schematic explanatory drawing of the training apparatus (leg press apparatus) which concerns on 4th Embodiment of this invention. It is a schematic explanatory drawing which shows the use condition which pulled down the foot pedal of the leg press apparatus shown in FIG. It is a side view of 5th Embodiment (dipping apparatus of the height of a grip and a space | interval change) of this invention. It is a side view which shows the maximum load state in the dipping apparatus shown in FIG. It is a side view which shows the minimum load state in the dipping apparatus shown in FIG. 16A and 16B are a plan view and a cross-sectional view of a weight used in the dipping apparatus shown in FIG. It is a figure which shows the attachment aspect from which attachment of a weight differs in the dipping apparatus shown in FIG. It is a figure which shows the attachment aspect further different from attachment of a weight in the dipping apparatus shown in FIG. It is a figure which shows the weight support part and weight modification of the dipping apparatus shown in FIG. 20A and 20B are schematic explanatory views showing the grip variable operation in the grip interval adjusting device added to the device shown in FIG. It is a front view of a grip space | interval adjustment apparatus. 22 (A) and 22 (B) are schematic explanatory views showing a grip variable operation in another grip distance adjusting device added to the device shown in FIG. It is sectional drawing which shows an example of the attachment structure of a 1st, 2nd cam follower. It is a schematic explanatory drawing of the training apparatus (dipping apparatus) which concerns on 6th Embodiment of this invention which has arrange | positioned a weight in dead space.

  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. First Embodiment A first embodiment in which the present invention is applied to a dipping apparatus will be described. This dipping device moves both elbows up and down with both shoulders as fulcrums, so that the pectoralis major muscle, latissimus dorsi muscle, lower trapezius muscle, anterior part of the deltoid muscle, triceps, levator levator muscle, upper trapezius muscle, It is an effective device for relaxing stiff muscles by moving muscles such as rhomboid, back of deltoid, and biceps.

1.1. Overview of Dipping Device FIG. 1 is a schematic perspective view of a dipping device 10 according to a first embodiment of the present invention, and FIG. 2 shows a usage pattern of the dipping device 10. The dipping device 10 moves the above-described muscles by reciprocating an operation unit, for example, two grips 12 and 12 which a user operates with both hands against a load in a vertical direction A as shown in FIG. Training device.

  In the dipping device 10, for example, a leg portion 22 is erected vertically on a T-shaped base base 20, and a seating portion 26 is fixed via an elevating part 24 that can be raised and lowered with respect to the leg part 22. The raising / lowering part 24 can adjust the height position of the seating part 26 in multiple steps or continuously. As a seating height adjusting device that adjusts the height position of the elevating part 24 with respect to the leg part 22, for example, the height can be adjusted by inserting / removing the operation pin 23 with respect to an engagement hole (not shown) of the elevating part 24.

  A support column 28 is erected on the base substrate 20 at a position separated from the leg portion 22. A support member 30 is provided on the top of the support column 28 to support the two grips 12 and 12 so as to be reciprocally movable in the vertical direction of FIG.

  The support member 30 has a rocking fulcrum 32 (also referred to as a first fulcrum O1) supported on the top of the column 28. The support member 30 further includes a swing arm 34 that is supported by a swing fulcrum 32 so that the intermediate position in the longitudinal direction is swingable.

  The swing arm 34 is divided into a base 34A having a swing fulcrum 32 and a fork extending from the base 34A, and two arms 34B and 34B having two grips 12 and 12 supported at their free ends. The two arms 34B and 34B include a tail portion 34C extending from the base portion 34A in the opposite direction. That is, the two grips 12 and 12 can be moved and operated in the vertical direction B in FIG. 2 by swinging with the arms 34B and 34B around the swing fulcrum 32. The two grips 12 and 12 are pivotally supported by the arms 34B and 34B, and can be freely rotated with respect to the arms 34B and 34B.

  The two grips 12 and 12 are operated against a load, and weights are provided for applying a load to the two grips 12 and 12. In the present embodiment, first and second weights 50 and 60 are provided.

  The second weight 60 is disposed on the free end side of the tail portion 34C. The second weight 60 can be provided on the tail portion 34 </ b> C via the length adjusting device 62. The length adjusting device 62 is capable of adjusting the length from the free end of the tail portion 34C to the second weight 60 in multiple steps or steplessly, and well-known engagement means is adopted. Further, the weight of the second weight 60 itself may be changeable.

  For example, the first weight 50 is rotatably supported by a rotation fulcrum 52 (also referred to as a second fulcrum O2) provided in the support column 28. The first weight 50 is rotated in the forward and reverse directions around the rotation fulcrum 52, thereby changing the moment around the rotation fulcrum 52.

  Although the first weight 50 itself may be supported by the rotation fulcrum 52, in the present embodiment, one end is rotatably supported by the rotation fulcrum 52, and the other end extends in the rotation radius direction. 54, and the first weight 50 can be attached to the weight support member 54. Further, the first weight 50 can be one or a plurality of unit weight plates 50 </ b> A that can change the number of the weights mounted on the weight support member 54. The weight support member 54 also functions as a load, and is not different from the unit weight plate 50A.

  A connecting member 40 that connects the first weight 50 (or weight support member 54) to the support member 30 is provided. The connecting member 40 connects the support member 40 and the first weight 50 or the weight support member 54 so that the first weight 50 moves forward and backward in conjunction with the reciprocating movement of the two grips 12 and 12. Rotate in the direction.

  The connecting member 40 includes a connecting fulcrum 42 provided on the tail portion 34C of the swing arm 34, a connecting bracket 44 rotatably supported by the connecting fulcrum 42, one end connected to the connecting bracket 44, and the other end. A string-like member connected to the first weight 50 or the weight support member 54, for example, a wire 46 can be included. The connecting metal fitting 44 has a function of adjusting the length of the wire 46.

1.2. Load Variable Operation Next, an operation in which the load is varied according to the movement positions of the two grips 12 and 12 in the dipping device 10 shown in FIG. 1 will be described with reference to FIGS. FIG. 3 shows a state where the two grips 12 and 12 are at the top dead center. This top dead center position is set by a stopper (not shown). When the two grips 12 and 12 are at top dead center, the two grips 12 and 12 are moved and operated against a maximum load (for example, 15 kg). FIG. 4 shows a state when the two grips 12 and 12 are set to, for example, the maximum height position by the user during training, as shown in FIG. At this time, the two grips 12 and 12 are moved and operated against an intermediate load (for example, 7 kg). FIG. 5 shows a state when the two grips 12 and 12 are set at the minimum height position by the user during training, for example. At this time, the two grips 12 and 12 are moved and operated against a minimum load (for example, 3 kg).

  These will be described with reference to force F, distance L, weight W and moment M shown in FIGS. However, the weights other than the weights of the first and second weights 50 and 60 are ignored.

1.3. Maximum load in the state shown in FIG. 3 First, the moment M11 that rotates the swing arm 34 clockwise around the first fulcrum O1 by the first weight 50 causes the weight of the first weight 50 to be W1. Assuming that the distance from the second fulcrum O2 to the load action line (vertical line) passing through the center of gravity of the first weight 50 is L21, M11 = W1 × L21. Since the swing arm 34 supported by the first fulcrum O1 and the first weight 50 are connected by the connecting member 40, a moment M11 due to the first weight 50 acts on the swing arm 34.

  The moment M21 that causes the second weight 60 to rotate the swing arm 34 in the clockwise direction about the first fulcrum O1 is set so that the weight of the second weight 50 is W2, and the second fulcrum O1 to the second fulcrum O1. When the distance to the load action line (vertical line) passing through the center of gravity of the weight 60 is L31, M21 = W2 × L31.

  Therefore, the total moment for rotating the swing arm 34 clockwise around the first fulcrum O1 by the first and second weights 50, 60 is M11 + M21.

The swing arm 34 having the total moment (M11 + M21) acting on one end of the first fulcrum O1 pushes down the two grips 12, 12 on the other end against the load of the total moment (M11 + M21). A force F11 (total force acting on the two grips 12, 12) is required. When the distance from the first fulcrum O1 to the action line (vertical line) of the force F11 from the first fulcrum O1 is L11,
F11 = (M11 + M21) / L11 (1)
It becomes.

  Here, in FIG. 3, since the first weight 50 is set to be almost horizontal, the distance L21 from the second fulcrum O2 to the load action line (vertical line) passing through the center of gravity of the first weight 50 is a value close to the longest. It becomes. Therefore, the moment M11 based on the first weight 50 has a value close to the maximum, and is larger than moments M12 and M13 described later in FIGS.

  Furthermore, the distance L31 from the first fulcrum O1 to the load action line (vertical line) passing through the center of gravity of the second weight 60 is larger than the corresponding distances L32 and L33 in FIGS. Therefore, the moment M21 based on the second weight 60 is larger than moments M222 and M23 described later in FIGS.

  Furthermore, the distance L11 from the first fulcrum O1 to the two grips 12, 12 is shorter than that in FIGS.

  Therefore, the above formula (1) shows that the force F11 is maximized because the denominator (M11 + M21) is larger than those in FIGS. 4 and 5 and the numerator (L11) is smaller than those in FIGS. Is clear.

1.4. Intermediate load in the state shown in FIG. 4 The first weight 50 causes the moment M12 to rotate the swing arm 34 clockwise about the first fulcrum O1 from the second fulcrum O2 to the first weight 50. When the distance to the load action line (vertical line) passing through the center of gravity is L22, M12 = W1 × L22.

  In addition, the moment M22 that rotates the swing arm 34 in the clockwise direction about the first fulcrum O1 by the second weight 60 is a load action line (through the center of gravity of the second weight 60 from the first fulcrum O1 ( When the distance to the vertical line is L32, M22 = W2 × L32.

The swing arm 34 having this total moment (M12 + M22) acting on one end of the first fulcrum O1 pushes down the two grips 12, 12 on the other end against the load of the total moment (M12 + M22). Requires force F12. This force F12 is L12, where the distance from the first fulcrum O1 to the line of action of the force F12 to each grip 12 is L12.
F12 = (M12 + M22) / L12 (2)
It becomes.

  Here, as apparent from the comparison between FIG. 3 and FIG. 4, since L12 <L11, M12 <M11, L22 <L21, M22 <M21, and L12> L11. Therefore, Formula (2) has a smaller denominator and a larger numerator than Formula (1), and F12 <F11. Thus, the force F12 that pushes down the two grips 12, 12 against the load in the state shown in FIG. 4 is smaller than the force F11 in the state shown in FIG.

1.5. The minimum load in the state shown in FIG. 5 With the first weight 50, the moment M13 that rotates the swing arm 34 in the clockwise direction around the first fulcrum O1 is from the second fulcrum O2 to the first weight 50. When the distance to the load action line (vertical line) passing through the center of gravity is L23, M13 = W1 × L23.

  Further, the moment M23 that causes the second weight 60 to rotate the swing arm 34 in the clockwise direction about the first fulcrum O1 is a load action line (through the center of gravity of the second weight 60 from the first fulcrum O1 ( If the distance to the vertical line is L33, M23 = W2 × L33.

The swing arm 34 having the total moment (M13 + M23) acting on one end of the first fulcrum O1 pushes down the two grips 12, 12 on the other end against the load of the total moment (M13 + M23). Requires force F13. This force F13 is L13, where the distance from the first fulcrum O1 to the line of action of the force F12 to each grip 12 is L13.
F13 = (M13 + M23) / L13 (3)
It becomes.

  Here, as apparent from the comparison between FIG. 4 and FIG. 5, since L23 <L22, M13 <M12, and since L33 <L32, M23 <M22. Further, the length L13 in FIG. 5 is slightly shorter than the length L12 in FIG. 4, but compared with the dimensional difference in which the lengths L23 and L33 in FIG. 5 are shorter than the lengths L22 and L32 in FIG. It is sufficiently small and can be regarded as L13≈L12. Therefore, Equation (3) has a smaller denominator than Equation (2), and the numerators are almost equal, and F13 <F12 <F11. Thus, the force F13 that pushes down the two grips 12 and 12 against the load in the state shown in FIG. 5 is smaller than the forces F11 and F12 in the state shown in FIGS.

1.6. Action and Effect of Dipping Device As shown in FIG. 2, when the user holding the two grips 12 and 12 is operated in the direction of raising the elbow (see FIG. 2), the state shown in FIG. 5 is changed to the state shown in FIG. The load will gradually increase. That is, the state shown in FIG. 2 shortens or relaxes muscles such as the scapula, upper trapezius, rhomboid, posterior deltoid, biceps, and the greater pectoral muscle, latissimus dorsi, mitral The load acts in the direction of stretching the muscles such as the lower muscle, the front of the deltoid, and the triceps.

  On the contrary, when the user holding the two grips 12 and 12 operates in the direction of lowering the elbow, the state shown in FIG. 4 is shifted to the state shown in FIG. 5, and the load is gradually reduced. Become. In this state, the muscle shortened or relaxed in the state shown in FIG. 2 is stretched, and the muscle stretched in the state shown in FIG. 2 is shortened or relaxed. Therefore, when training is performed by alternately repeating the states shown in FIGS. 4 and 5, the above-described muscles can be loosened effectively. Moreover, the user can use the load to set the state shown in FIG. 2, while reducing the load to release the state shown in FIG. 2, thereby reducing the burden on the user. Therefore, the user can continue this training.

2. Second Embodiment A second embodiment in which the present invention is applied to a high pulley apparatus will be described. This high pulley device flexes and stretches both arms extended upwards, and the great pectoral muscle, latissimus dorsi, lower trapezius, posterior deltoid muscle, anterior sawtooth, rhomboid, deltoid, upper trapezius, shoulder It is an effective device to move the muscles such as the levator muscles and loosen the stiff muscles.

2.1. Overview of High Pulley Device FIGS. 6 and 7 are schematic perspective views of a high pulley device 100 according to the second embodiment of the present invention. The high pulley apparatus 100 uses an operation unit, for example, two grips 102 and 102 that a user operates with both hands against a load between a top dead center shown in FIG. 6 and a bottom dead center shown in FIG. This device trains the above-mentioned muscles by reciprocating up and down within a possible range.

  Although not shown in the drawings, the high pulley apparatus 100 includes a seating portion and a knee presser portion that presses the knee of the user seated on the seating portion, and two grips 102 and 102 are placed on the seating portion by the user. Is operated up and down. In addition, the height of a seating part and a knee pressing part can also be adjusted according to a user.

  6 and 7 show only members necessary for the load variable operation, and other members are omitted. 6 and 7, the high pulley device 100 is supported by a support member 110 that supports two grips 102, 102 that are operating portions so as to be able to reciprocate, and a rotation fulcrum 122, so that the high pulley device 100 can rotate forward and backward. The weight 120 that varies the moment around the rotation fulcrum 122 by the rotation, the support member 110 and the weight 120 are connected, and the weight 120 is moved in the forward / reverse direction in conjunction with the reciprocating movement of the two grips 102, 102. And a connecting member 130 to be rotated.

  As shown in FIG. 6, the support member 110 has a parallel link mechanism 116 including a plurality of, for example, six supporting points 112 </ b> A to 112 </ b> F and a plurality of, for example, six links 114 </ b> A to 114 </ b> F at the upper end portion of the column 104. Note that the parallel link mechanism 116 of the present embodiment includes two four-node rotating chains. That is, the first link pair 114A, 114B and the second link pair 114D, 114E are parallel to each other while being regulated by the links 114C, 114F around the fulcrums 112A, 112B at both ends of the fixed link 104A fixed to the support column 104. Moving. The two grips 102 and 102 may be directly attached to the parallel link mechanism 116, but not limited thereto, and may be attached to a horizontal bar (not shown) guided by the parallel link mechanism 116. In this way, the two grips 102 and 102 are integrally guided by the parallel link mechanism 116 as a single unit.

  The lower portion of the high pulley device 100 further includes a first pulley 124 that rotates in the forward and reverse directions around the rotation fulcrum 122. In this embodiment, the weight 120 is attached to the first pulley 124 via, for example, the spoke 120A so that the center of gravity is provided at a position eccentric from the rotation fulcrum 122 of the first pulley 124.

  The connecting member 130 includes a string-like member, for example, a wire 132, whose lower end is connected and fixed to the first pulley 124 and wound around the first pulley according to the rotation of the first pulley. The upper end of the wire 132 is wound around, for example, a second pulley 138 arranged coaxially with the fulcrum 112B, and is connected to, for example, the link 114A, which is one of the plurality of links 114A to 114F of the parallel link mechanism 116. Yes. The position where the wire 132 is coupled to the link 114A is a position away from the plurality of fulcrums 112A to 122F. More specifically, the upper end of the wire 132 is connected to a link fitting 136 that is rotatable to the link 114A via a connection fulcrum 134.

2.2. In FIG. 6, the moment M11 that acts to rotate the pulley 124 counterclockwise by the weight 120 is the distance from the rotation fulcrum 122 to the load action line (vertical line) passing through the center of gravity of the weight 120. Is L21, M11 = W × L21. This moment M11 acts on the parallel link mechanism 116 via the connecting member 110. Therefore, the moment M11 becomes a load that resists the downward movement of the two grips 102, 102 supported by the parallel link mechanism 116.

  Similarly in FIG. 7, the moment M12 that acts to rotate the pulley 124 counterclockwise by the weight 120 is the distance from the rotation fulcrum 122 to the load acting line (vertical line) passing through the center of gravity of the weight 120. Assuming L22, M12 = W × L22. This moment M12 also becomes a load that resists the downward movement of the two grips 102, 102 supported by the parallel link mechanism 116.

  As described above, the distance from the rotation fulcrum 122 to the load action line (vertical line) passing through the center of gravity of the weight 120 is changed according to the operation positions of the two grips 102 and 102, and the two grips 102 and 102 are moved. It can be seen that the load against the downward movement is varied.

  This variable moment is when the spoke 120A extending in the radial direction from the fulcrum 122 and holding the weight 120 on the pulley 124 becomes horizontal. This is because the distance from the rotation fulcrum 122 to the load action line (vertical line) passing through the center of gravity of the weight 120 is maximized. The position where the moment becomes maximum exists between the top dead center of the grip 102 shown in FIG. 6 and the bottom dead center of the grip 102 shown in FIG.

On the other hand, in FIG. 6, a force F11 (total force acting on the two two grips 102, 102) is required to push down the two grips 102, 102 against the load of the moment M11. When the distance from the vertical line passing through the fulcrums 112A and 112B to the line of action of the force F11 on each grip 102 is L11,
F11 = M11 / L11 (4)
It becomes.

Similarly, in FIG. 7, the force F <b> 12 for pushing down the two grips 102 and 102 against the load of the moment M <b> 12 is from the vertical line passing through the fulcrums 112 </ b> A and 112 </ b> B to the action line of the force F <b> 12 to each grip 102. If the distance is L12,
F12 = M12 / L12 (5)
It becomes.

  Here, the variable load operation will be described with reference to FIG. 8 which is a simplified model of the apparatus shown in FIGS. FIG. 8 shows a state in which the height positions of the two grips 102 and 102 are set at three different positions H1, H2, and H3. A position H1 indicated by a solid line in FIG. 8 is a position close to FIG. 6 and is an operation position in a state where the user's arm is fully extended. When the two grips 102, 102 are pulled down from the position H1 to the position H2, the moment due to the weight 120 gradually increases, and the spoke 120A holding the weight 120 is near the maximum moment generation position where the spoke 120A is substantially horizontal. In the simple model of FIG. 8, the load at the position H2 is about 50% heavier than the load at the position H1. However, at the position H1, the user's arm bends substantially at a right angle and is in a state where it can exert the most force, so the burden on the user is small.

  When the two grips 102, 102 are further pulled down from the position H2 to the position H3, the moment due to the weight 120 gradually decreases. Therefore, the load is gradually reduced regardless of whether the two grips 102, 102 are pulled down or pulled up at the position H2.

  In the position H1 where the arm is fully extended, muscles such as the deltoid muscle, the upper part of the trapezius, and the levator scapula can be sufficiently shortened or relaxed, and the greater pectoral muscle, the latissimus dorsi, the lower part of the trapezius, the triangle Muscles such as the posterior muscle, the front saw blade, and the rhomboid can be stretched. On the other hand, at the position H3 where the arm is contracted, the muscle shortened or relaxed in the state of the position H1 is stretched, and the muscle stretched in the state of the position H1 is shortened or relaxed. Therefore, by repeating this operation, the muscles described above are sufficiently loosened.

  Here, the distance L such as the distances L11 and L12 is varied according to the parallel link mechanism 116 in accordance with the positions of the two grips 102 and 102. If the moment M is constant, the force F that pushes down the two grips 102, 102 may be smaller as the distance L increases. In this embodiment, the moment M decreases as the distance L decreases, and the distance L increases as the moment M increases. Therefore, the load required to push down the two grips 102 and 102 does not increase excessively. .

3. Third Embodiment A third embodiment in which the present invention is applied to a pullover device will be described. This pullover device moves the upper and lower arms back and forth to move the deltoid, trapezius, rhomboid, pectoralis, anterior saw, the anterior abdominis, rectus abdominis, and external obliques It is an effective device to loosen up stiff muscles and indirects by moving the muscles and shoulder joints.

3.1. Outline of Pullover Device FIGS. 9 and 10 are schematic perspective views of a pullover device 200 according to a third embodiment of the present invention. The pullover device 200 is configured to reciprocate back and forth an operation portion, for example, an operation bar 202, which is operated by a user at the forearm portion of both arms against a load, within a usable range shown in FIGS. This is a device for training by moving the muscles and shoulder joints described above.

  The pullover device 200 includes a seating portion 204 that is inclined so that the front end faces upward, and a backrest portion 206 that extends obliquely upward from the seating portion 204. The user sits on the seat portion 204 and sits in an inclined state on his / her back with his back on the backrest portion 206. Two struts (only one is shown in the figure) 210 are provided on both sides of the seating portion 204 and the backrest portion 206.

  A support member 220 that supports an operation bar 202 as an operation unit so as to be reciprocally movable in the front-rear direction is provided. The support member 220 includes two swing fulcrums 222 (only one is shown in the figure) provided at the upper ends of the two columns 210 and 210 (only one is shown in the figure), and the two swing fulcrums. And two arms 224 (only one is shown in the figure) rotating about 222. The operation bar 202 is connected between the two arms 224, and each member 202, 224, 224 has a U-shape (channel type) as a whole.

  The pullover device 200 further includes a weight 230 that is rotatably supported by the rotation fulcrum 232 and that varies the moment around the rotation fulcrum 232 by rotating in the forward and reverse directions. Also in this embodiment, similarly to the second embodiment, the pullover device 200 has a first pulley 234 that rotates in the forward and reverse directions around the rotation fulcrum 232 at the lower part of the pullover device 200. In this embodiment, the weight 230 is attached to the first pulley 234 via the spoke 230 </ b> A so that the center of gravity is provided at a position eccentric from the rotation fulcrum 232 of the first pulley 234.

  The pullover device 200 further includes a connecting member 240 that connects the support member 220 and the weight 230 and rotates the weight 230 in the forward and reverse directions in conjunction with the reciprocating movement of the operation unit bar 202. The connecting member 240 includes a string-like member, for example, a wire 242, whose lower end is connected and fixed to the first pulley 234 and wound around the first pulley 234 according to the rotation of the first pulley 234. The upper end of the wire 242 is wound around the second pulley 250 and connected to one arm 224 of the support member 220. The wire 242 is connected to the arm 224 at a position away from the fulcrum 222 at the upper end of the column 210.

3.2. In FIG. 9, the moment M <b> 11 that acts to rotate the pulley 234 in the clockwise direction by the weight 230 indicates the distance from the rotation fulcrum 232 to the load action line (vertical line) passing through the center of gravity of the weight 230. Assuming L21, M11 = W × L21. This moment M11 acts on the arm 224 via the connecting member 240. Therefore, the moment M11 becomes a load that resists moving the operation bar 202 supported by the arm 224 to the left side in the figure.

  Similarly in FIG. 10, the moment M22 that acts to rotate the pulley 234 in the clockwise direction by the weight 230 is the distance from the rotation fulcrum 232 to the load acting line (vertical line) passing through the center of gravity of the weight 230. Then, M12 = W × L22. This moment M12 also becomes a load that resists moving the operation bar 202 supported by the arm 224 to the left side in the figure.

  As described above, the distance from the rotation fulcrum 232 to the load action line (vertical line) passing through the center of gravity of the weight 230 is changed according to the operation position of the operation bar 202, and the operation bar 202 is moved to the left side in the figure. It can be seen that the load against the change is variable.

  This variable moment increases as the spoke 230A extending in the radial direction from the fulcrum 232 and holding the weight 230 on the pulley 234 is nearly horizontal (FIG. 10). This is because the distance from the rotation fulcrum 232 to the load action line (vertical line) passing through the center of gravity of the weight 230 increases. Therefore, M12> M11.

  When the user retreats both arms in the back direction from the state of FIG. 9 to the state shown in FIG. 10, the load due to the moment M is gradually increased, and a large moment is generated at the position shown in FIG. Therefore, in the vicinity of the position at the position shown in FIG. 10, it is possible to loosen muscles and shoulder joints using the load. That is, in the vicinity of the position shown in FIG. 10, muscles such as the deltoid, trapezius, and rhombus are shortened or relaxed, such as the pectoralis major muscle, the anterior sawtooth, the anterior part of the deltoid, the rectus abdominis, and the external oblique muscle. Muscles are stretched. On the other hand, when the operation bar 202 is pushed back with the force F such as the forces F11 and F12 against the load, the moment M gradually decreases, so the load also gradually decreases. Therefore, when the operation of moving the operation bar 202 back and forth is repeated, the load when the operation bar 202 is pushed back is gradually reduced, so that the burden on the user can be reduced.

  In FIG. 9, force F11 is required to move the operation bar 202 against the load of the moment M11. This force F11 is expressed by the above equation (4), where L11 is the distance from the horizontal line passing through the swing fulcrum 222 to the line of action of the force F11 on the operation bar 202.

  Similarly, in FIG. 7, the force F <b> 12 moves the operation bar 202 against the load of the moment M <b> 12, and the distance from the horizontal line passing through the swing fulcrum 222 to the line of action of the force F <b> 12 to the operation bar 202 is L <b> 12. Then, the above equation (5) is obtained.

  The distance L such as the distances L11 and L12 becomes maximum when the arm 224 is vertical. From the state of FIG. 10 until the arm 224 becomes vertical, the moment M gradually decreases and the distance L gradually increases, so the force F also gradually decreases. In order to shift from the vertical position of the arm 224 to the state shown in FIG. 9, the distance L increases gradually, but the moment M gradually decreases, so the force F does not increase.

4). Fourth Embodiment A fourth embodiment in which the present invention is applied to a leg press apparatus will be described. This leg press device moves muscles such as the psoas major, adductor muscles, quadriceps, biceps, femoral fascia, and gluteal muscles by flexing and stretching both legs extended obliquely upward, It is an effective training device for relaxing stiff muscles.

4.1. Outline of Leg Press Device FIGS. 11 and 12 are schematic perspective views of a leg press device 300 according to a fourth embodiment of the present invention. The leg press device 300 is configured to reciprocate up and down an operation unit, for example, a foot pedal 302, which a user operates with both legs against a load, within the usable range shown in FIGS. It is a device to train by moving.

  The leg press device 300 includes a seating portion 304 that is inclined so that the front end faces upward, and a backrest portion 306 that extends obliquely upward from the seating portion 304. The user sits on the seating portion 304, puts his back on the backrest portion 306, attaches the sole of the foot to the foot pedal 302, and sits in an inclined state on his back. The seating portion 304 and the backrest portion 306 are supported by, for example, a hypotenuse 308A of a right triangle frame 308.

  11 and 12, the leg press device 300 is supported by a support member 310 that supports a foot pedal 302 that is an operation unit so as to be reciprocally movable, and a rotation fulcrum 322 so that the foot pedal 302 can rotate in the forward and reverse directions. The weight 320 whose moment around the rotation fulcrum 322 is changed by the link, the support member 310 and the weight 320 are connected, and the weight 320 is rotated in the forward and reverse directions in conjunction with the reciprocating movement of the foot pedal 302. Member 330.

  The support member 310 has a parallel link mechanism 316 including a plurality of, for example, four supporting points 312A to 312D and a plurality of, for example, three links 314A to 314C. The parallel link mechanism 316 includes, for example, a four-joint rotation chain in which the links 314A and 314B move in parallel while being restricted by the link 314C around two fulcrums 312A and 312B provided on a fixed portion such as the oblique side 308A of the frame 308. Yes.

  The foot pedal 302 is supported by the frame 318 so as to be perpendicular to the link 314C and is guided to move in parallel.

  The frame 308 further includes a pulley 324 that rotates in the forward and reverse directions around the rotation fulcrum 322. In this embodiment, the weight 320 is attached to the pulley 324 via, for example, the spoke 320A so that the center of gravity is provided at a position eccentric from the rotation fulcrum 322 of the pulley 324.

  The connecting member 330 includes a string-like member, for example, a wire 332, whose lower end is connected and fixed to the pulley 324 and wound around the pulley 324 according to the rotation of the first pulley. The upper end of the wire 332 is connected to a connection fitting 334 that is pivotally attached to the free end side of a link 314D that is integrated with the link 314B and rotates around a fulcrum 312B.

4.2. Load fluctuation operation The generated moment M11 = W × L21 in the state shown in FIG. 11, the generated moment M12 = W × L22 in the state shown in FIG. 12, and L21 <L22, so that M11 <M12. 9 and 10 are the same.

  When the user bends both legs so as to shift from the state of FIG. 11 to the state shown in FIG. 12, the load due to the moment M is gradually increased, and a large moment is generated at the position shown in FIG. Therefore, in the vicinity of the position at the position shown in FIG. 12, it is possible to loosen muscles and shoulder joints using the load. That is, in the vicinity of the position shown in FIG. 12, the psoas major and adductor muscles are shortened or relaxed, and the quadriceps, biceps, femoral fascia, and gluteal muscles are stretched.

  On the other hand, when the foot pedal 302 is pushed back by the force F such as the forces F11 and F12 against the load, the moment M gradually decreases, so the load also gradually decreases. Therefore, when repeatedly performing the operation of moving the foot pedal 302 back and forth, the load when the foot pedal 302 is pushed back is gradually reduced, so that the burden on the user can be reduced.

  In FIG. 11, the force F11 is as shown in the above-described equation (4) for moving the foot pedal 302 against the load of the moment M11. In FIG. 12, the force F12 is as shown in the above equation (5) for moving the foot pedal 302 against the load of the moment M12.

  Here, the distance L such as the distances L11 and L12 is varied according to the parallel link mechanism 316 according to the position of the foot pedal 302. The force F that pushes up the foot pedal 302 may be smaller as the distance L increases if the moment M is constant. In this embodiment, the moment M decreases as the distance L decreases, and the distance L increases as the moment M increases. Therefore, the load required to push up the foot pedal 302 does not increase excessively.

  In the present embodiment, the distance L such as the distances L11 and L12 sets the height position of the foot pedal 302. At this time, the position of the foot pedal 302 when the user extends the leg is low, while the position of the foot pedal 302 when the user bends the leg is high. This high and low position fits the natural movement of the human leg. Therefore, adopting the parallel link mechanism 316 as the support member 310 of the leg press device 300 is also effective in that the height of the foot pedal 302 can be adjusted in accordance with the movement of the user.

5. Fifth Embodiment A fifth embodiment in which the present invention is applied to a dipping apparatus will be described. In addition to the load variable function described above, this dipping device has a function of adjusting the height position adjusting function of the operation unit and a function of changing the first and second grip intervals as the operation unit.

5.1. Outline of Dipping Device FIG. 13 is a schematic explanatory view of a dipping device 400 according to a fifth embodiment of the present invention. In FIG. 13, members having the same functions as those shown in FIG. A description thereof will be omitted.

  In FIG. 13, this dipping device 400 is also rotatably supported by a support member 40 that supports the two grips 12 that are operation portions so as to be reciprocally movable, and a pivotal fulcrum 52. A connecting member that connects at least one weight 420 that varies the moment around the rotation fulcrum, the support member 30 and the weight 420, and rotates the weight 420 in the forward and reverse directions in conjunction with the reciprocating movement of the grip 12. 40 in common with the dipping apparatus 10 of FIG. In FIG. 13, the pivot support 52 has a pivotable weight support member 410, and the weight support member 410 on which the weight 420 is mounted is coupled to the coupling member 40.

  14 and 15 illustrate the peripheral portion of the weight 420 in a state where the two grips 12 are at the top dead center and the bottom dead center. When the two grips 12 are in the vicinity of the top dead center, as shown in FIG. 14, the weight 420 is substantially horizontal, the moment around the rotation fulcrum 52 is maximized, and the load when the two grips 12 are pushed down is also maximized. Become. On the other hand, when the two grips 12 are in the vicinity of the bottom dead center, as shown in FIG. 15, the weight 420 is almost vertical, the moment around the rotation fulcrum 52 is minimized, and the load when the two grips 12 are pushed down is also increased. Minimal. In this way, the variable range of the load is expanded while using at least one weight 420.

5.2. Grip Height Adjustment In FIG. 13, the dipping device 400 is provided with a grip height adjustment device 29. The support 28 of the dipping device 10 of FIG. 1 is separated into a support 28A and an elevating part 28B that can be moved up and down with respect to the support 28A in the dipping device 400 of FIG. The grip height adjusting device 29 that adjusts the height position of the elevating part 28B with respect to the support 28A includes, for example, a hydraulic cylinder 29A as an upward biasing means, an operation pin 29B, and a plurality of engagements into which the operation pin 29B is inserted. And a joint hole 29C (only one is shown in FIG. 13). In the hydraulic cylinder 29A, a cylinder 29A2 that drives a rod 29A1 whose one end is fixed to the frame is fixed to the elevating part 28B, and the elevating part 28B is constantly urged to move in the ascending direction. By inserting / removing the rod 29A1, the lifting / lowering part 28B can be lifted / lowered with respect to the column 28A, and the height position of the lifting / lowering part 28B can be adjusted by inserting the operation pin 29B into one of the engagement holes 29C. Determined.

  Here, in this embodiment, the swing fulcrum 32, the support member 30, and the rotation fulcrum 52 are supported by the elevating part 28B. A weight support member 410 on which a weight 420 is mounted is supported on the rotation fulcrum 52. Since the weight support member 410 is connected to the support member 30 by a connecting member 40, each of these members 30, 32, 40, 52, 410, and 420 are moved up and down together with the lift unit 28B while maintaining the positional relationship. Therefore, even if the lifting / lowering portion 28B is lifted / lowered by the grip height adjusting device 29, it is not necessary to adjust others.

  In this embodiment, the seat 26 is adjusted by the seat height adjusting device 23 and the grip 12 is adjusted by the grip height adjusting device 29, so that the user can adjust both the seating position and the grip position. By adjusting the height, training can be performed in a posture that fits the individual physique of the user. Thereby, the training effect can be increased.

  On the other hand, in the conventional training apparatus that moves the weight guided so as to be movable up and down through the pulley supported by the support column, the weight does not move even when the pulley is moved up and down. Therefore, when the pulley is raised and lowered, the wire is loosened or strained. For this reason, in this type of apparatus, it is necessary to adjust the wire length when the height is adjusted. As in the present embodiment, the height position of the grip 12 can be adjusted by rotatably supporting the weight 420 on the elevating part 28B.

  The height adjustment of the operation unit is not limited to the dipping device, but can be applied to other training devices as long as the support member and the pivot point of the weight are supported by the lifting unit.

5.3. Weight Support Structure An example of the weight 420 mounted on the weight support member 410 shown in FIGS. 13 to 15 is shown in FIGS. As shown in FIG. 16A, a slit-shaped notch 424 is formed in, for example, a square weight 420 in plan view, and a supported portion 422 with respect to the weight support member 410 is narrowed by the notch 424. Is secured. As shown in FIG. 16B, the supported portion 422 has a vertical cross section that is a rotation target shape, for example, a square.

  On the other hand, as shown in FIGS. 17 and 18, at least one, for example, three weight support portions 410A to 410C are formed on the weight support member 410 shown in FIGS. The three weight support portions 410A to 410C are formed in a groove shape, for example, so that the supported portion 422 of the weight 420 can be supported.

  Here, since the longitudinal section of the supported portion 422 of the weight 420 is square, the weight 420 is mounted in the longitudinal direction on any of the three weight support portions 410A to 410C as shown in FIG. And mounting the weight 420 in the lateral direction as shown in FIG. 18 can be selected. In this way, by mounting the weight 420 in a different posture with respect to one weight support portion, the center of gravity of the weight 420 is different, so that the moment around the rotation fulcrum 52 can be changed, thereby reducing the load. Can change.

  Further, by selectively mounting one or more weights 420 using one or more of the plurality of weight support portions 410A to 410C, the center of gravity of the weight 420 is different, so that the moment around the rotation fulcrum 52 can be changed. , Thereby changing the load. Thus, by selecting the attachment posture, the attachment position, and the number of attachments of the weight 420, the load variable range is dramatically increased.

  Further, the weight 420 is formed with a notch 424 as shown in FIG. 16A, and this notch 424 functions as an escape portion that does not interfere with the elevating part 28B (or the column 28 in FIG. 1). . Therefore, the weight 420 does not interfere with the lifting / lowering portion 28B by the notch 424 even when the rotation locus of the weight 420 interferes with the lifting / lowering portion 28B in a side view. This greatly contributes to reducing the turning radius of the weight 420 and reducing the size of the training apparatus.

  FIG. 19 shows a modified example in which the weight support member and the weight are changed in the embodiment shown in FIGS. In the embodiment shown in FIG. 19, for example, a pair of weight support members 412 and 412 that can rotate is provided on the rotation fulcrum 52, and weight support rods 414 and 414 are fixed to the pair of weight support members 412 and 412. ing. The weight 426 is formed in a ring shape having a hole through which each weight support bar 414 can be inserted.

  Even if the weight support members 412 and 412 rotate around the rotation fulcrum 52, the weights 426 and 426 mounted on the weight support rods 414 and 414 provided outside the weight support members 412 and 412 respectively. There is no interference with the elevating part 28B (or the column 28 in FIG. 1). In addition, by changing the number of weights 426 supported by the weight support rods 414 and 414, the weight and the position of the center of gravity are changed, and the load moment around the rotation fulcrum 52 can be changed.

  In FIG. 19, the connecting member 40 is formed by at least one (two in FIG. 19) links 40 </ b> A and 40 </ b> B, not the wires and the fittings shown in FIGS. 1 and 13. As described above, in the first and fifth embodiments that do not use a pulley or the like, the connecting member 40 that connects the weight or the weight supporting member and the supporting member 40 may be a link whose both ends are rotatable.

5.4. Grip Interval Variable A dipping device 400 shown in FIG. 13 includes a grip interval adjusting device 430A (430B). This grip interval adjusting device 430A (430B) is a training in which the user moves the muscles or joints of the body by moving the two grips (first and second operation parts in a broad sense) against the load. Effective for the device. The two operation units whose distances are adjusted can be applied to an inner size device that opens both legs against a load in addition to those shown in the first and second embodiments described above.

  FIGS. 20A and 20B show the state in which the grip interval adjusting device 430A has adjusted the narrow interval W1 and the wide interval W2 in plan view, respectively, and FIG. 21 is a side view of the grip interval adjusting device 430A. The grip interval adjusting device 430A includes first and second rotation shaft portions 432A and 432B, to which two grips 12 and 12 are fixed and supported so as to be able to rotate about an axis, and first and second rotations. The first and second movable bodies 434A and 434B fixed to the shaft portions 432A and 432B and the first and second movable bodies 434A and 434B are provided, and the first and second rotation shafts 432A and 432B are provided. As a fulcrum, there is a tuning mechanism 460 that rotates and synchronizes the first and second moving bodies 434A and 434B by substantially the same rotation angle in opposite directions.

  The grip interval adjusting device 430A rotates the one grip 12 connected to the fulcrum shaft with either one of the first and second rotation shafts 432A and 432B as a fulcrum shaft, whereby the two grips 12, 12 is moved symmetrically with respect to the center line L that bisects the two grips 12 and 12, and the distance between the two grips 12 and 12 is adjusted.

  The tuning mechanism 260 includes first and second links 446A and 446B that are supported by the first and second moving bodies 434A and 434B and arranged to cross each other. As shown in FIG. 21, the first and second rotation shaft portions 432A and 432B are rotatably supported by a fixed plate 34D fixed on the base portion 34A of the support member 30.

  First and second fulcrums 450 and 452 are spaced from each other on the first moving body 434A, and third and fourth fulcrums 454 and 456 are spaced from each other on the second moving body 434B. Has been. One end of the first link 446A is rotatably supported by a first fulcrum 450 provided on the first moving body 434A, and the other end of the first link 446A is provided on the second moving body 434B. The fourth fulcrum 456 is rotatably supported. Similarly, one end of the second link 446B is rotatably supported by a third fulcrum provided on the second moving body 434A, and the other end of the second link 446B is provided on the first moving body 434A. The second fulcrum 452 is rotatably supported.

  First, an operation for adjusting the distance between the two grips 12 and 12 so that the gap W2 is wide as shown in FIG. 20B to the narrow gap W1 shown in FIG. 20A will be described. At this time, the first rotation shaft portion 432A rotates in the A2 direction, and the second rotation shaft portion 432B rotates in the B2 direction opposite to the A2 direction. This pair of rotation directions A2 and B2 is referred to as a second rotation direction. This rotation operation may be performed by rotating the two grips 12 and 12 in the second rotation direction A2 and B2 about the first and second rotation shaft portions 432A and 432B.

  As a result, the distance between the first fulcrum 450 and the third fulcrum 454 increases, the distance between the second fulcrum 452 and the fourth fulcrum 456 decreases, and the two grips 12, 12. Is varied from a wide interval W2 to a narrow interval W1.

  Moreover, even when the rotation amounts of the two grips 12 and 12 are different or only one of the two grips 12 and 12 is rotated, the grip interval adjusting device 430A applies the two grips 12 and 12 to the line. It can be moved with. Assume that only the right grip 12 in FIG. 20B is rotated in the A2 direction. Thus, the first rotation shaft portion 432A, the first moving body 434A, the first and second links 446A and 446B, and the first and third fulcrums 450 and 452 are integrally rotated.

  Then, since the first link 446A pulls the fourth fulcrum 456 and the second link 446B pushes the third fulcrum 454, the second moving body 434B moves the second shaft portion 432B in the B2 direction. It will be rotated. For this reason, the two grips 12 and 12 are moved in line.

  Next, an operation for adjusting the distance between the two grips 12 and 12 so that the gap W1 is narrow as shown in FIG. 20A to the wide gap W2 shown in FIG. 20B will be described. At this time, the first rotation shaft portion 432A rotates in the A1 direction, and the second rotation shaft portion 432B rotates in the B1 direction opposite to the A1 direction. This pair of rotation directions A1 and B1 is referred to as a first rotation direction. The rotation operation may be performed by rotating the two grips 12 and 12 in the first rotation direction A1 and B1 about the first and second rotation shaft portions 432A and 432B.

  As a result, the distance between the first fulcrum 450 and the third fulcrum 454 decreases, the distance between the second fulcrum 452 and the fourth fulcrum 456 increases, and the two grips 12, 12. Is varied from a narrow interval W1 to a wide interval W2. In addition, even when the rotation amounts of the two grips 12 and 12 are different or only one of the two grips 12 and 12 is rotated, the grip interval adjusting device 430A causes the two grips 12 and 12 to be centered. It can be moved with respect to L as a line object.

  In order to rotate the two grips 12 and 12 around the first and second rotation shaft portions 432A and 432B, the first and second rotation shaft portions 432A and 432B are moved in the first and second directions. The bodies 434A and 434B and the first and second links 446A and 446B are rotated together. Since the frictional resistance acts to rotate as a unit, the two grips 12 and 12 can be held by the frictional force at a desired interval width by using the frictional resistance, and the interval width can be continuously increased. Can be adjusted. Instead of this, a well-known engagement means for holding the gap width between the two grips 12 and 12 at a plurality of variable width positions may be added.

5.5. Other Examples of Variable Grip Interval FIGS. 22A and 22B show a grip interval adjusting device 430B that is different from FIGS. 20A and 20B. 22 (A) and 22 (B), members having the same functions as those shown in FIGS. 20 (A) and 20 (B) are denoted by the same reference numerals as those in FIGS. Description is omitted.

  A tuning mechanism 470 shown in FIGS. 22A and 22B employs a cam mechanism instead of the link mechanism shown in FIGS. The tuning mechanism 470 includes a first cam 472A that is an end face cam formed on, for example, the outer edge surface of the first moving body 434A, and a first cam follower 474A that is provided on, for example, the back surface of the first moving body 434A. Have The synchronization mechanism 470 further includes, for example, a second cam 472B that is an end face cam formed on the outer edge surface of the second moving body 434B, and a second cam follower 474B provided on the surface of the second moving body 434A, for example. Have The first cam follower 474A is guided to the second cam 472B, and the second cam follower 474B is guided to the first cam 472A.

  22A shows an example in which the interval W1 between the two grips 12 and 12 is adjusted narrowly, and FIG. 22B shows an example in which the interval W1 between the two grips 12 and 12 is adjusted narrowly. Yes. The two grips 12 and 12 are line targets with respect to the center line L by cam mechanisms 472A, 472B, 474A, and 474B instead of the first and second links 446A and 446B shown in FIGS. It can be moved to adjust the grip interval.

  The first link 446A, the first cam 472A, and the second cam follower 474B follow the rotation of the first moving body 434A in one direction about the first rotation shaft 432A according to the rotation of a predetermined angle. The second rotation body 434B functions as a first rotation transmission mechanism that rotates the second moving body 434B in the other direction by a predetermined angle with the second rotation shaft 432B as a fulcrum.

  Similarly, the second link 446B, the second cam 472B, and the first cam follower 474A follow a rotation of a predetermined angle in one direction of the second moving body 434B with the second rotation shaft 432B as a fulcrum, Using the first rotation shaft 432A as a fulcrum, it functions as a second rotation transmission mechanism that rotates the first moving body 434A by a predetermined angle in the other direction.

  Thus, the tuning mechanisms 260 and 270 can maintain the first and second moving bodies 434A and 434B themselves in a non-engagement (or non-meshing) state. Therefore, it is not necessary to make the first and second moving bodies 434A and 434B expensive gears that can mesh with each other. However, a gear that meshes with each other may be formed on the outer periphery of the first and second moving bodies 434A and 434B to form a tuning mechanism.

  FIG. 23 shows an example of attachment of the first and second cam ferroers 474A and 474B. Both the first and second cam followers 474A and 474B are attached to the first and second moving bodies 434A and 434B using a bolt 480, a cylindrical collar 482, two washers 484 and 486, and a nut 488. Since the thicknesses of the first and second cam ferroers 474A and 474B are smaller than the height of the collar 482, the first and second cam ferroers 474A and 474B are supported rotatably around the bolt 480. The mounting of the first and second cam followers 474A and 474B is not limited to this, and may be supported rotatably using a bearing or the like.

  Here, at least surfaces of the first and second cam followers 474A and 474B can be formed of an elastic member, for example, rubber. Thus, the first and second cam followers 474A and 474B can be pressed against the first and second cams 472A and 472B so as to be elastically deformable, and the first and second rotation shafts 432A and 432B (see FIG. A resistance force can be added to the rotation of 22). Thus, the two grips 12 and 12 are held at the distance adjustment position.

  In addition, a long hole 490 through which the shaft of the bolt 480 is inserted is formed in at least one of the first and second cam followers 484A and 484B, for example, the first moving body 434A on which the first cam follower 474A is supported. it can. The width of the long hole 490 in the short direction is such a width that the bolt 480 can be inserted and the length in the long direction is longer than that. Thus, by moving the bolt 480 within the longitudinal range of the long hole 490, the attachment position of the twelfth cam follower 474A can be adjusted. In this way, it is possible to adjust the pressing force with which at least one of the first and second cam followers 474A and 47B is pressed against at least one of the first and second cams 472A and 472B. In this way, the holding force with which the two grips 12, 12 are held at the distance adjustment position can be adjusted.

6). 6th Embodiment FIG. 24: is a schematic perspective view which shows 6th Embodiment of this invention which has arrange | positioned a weight in dead space and reduced the apparatus. A training apparatus 500 illustrated in FIG. 24 is a training apparatus that moves a muscle or a joint of a body by a user moving and operating an operation unit against a load, for example, a dipping apparatus. Of the members shown in FIG. 24, members having the same functions as those shown in FIG. In addition, grip distance adjusting devices 430A and 430B shown in FIGS. 20A, 20B, 22A, and 22B may be adopted in the device shown in FIG.

  The dipping device 500 includes, for example, a support member 30 that supports, for example, two grips 12 and 12 that are operation units so as to be able to reciprocate, a weight 550 that is moved up and down in conjunction with the reciprocation of the two grips 12 and 12, and a support There are connecting members 530, 532, and 540 that connect the member 30 and the weight 550, a lower frame 512 disposed on the floor side, and an upper frame 514 that is opposed to the upper side of the lower frame 512. In the present embodiment, the lower frame 512 and the upper frame 514 are formed as a part of a frame body 510 including two vertical frames 516 and 518 that connect them. The seat portion 26 can be attached to the frame body 510.

  The support member 30 can be supported by the lower frame 512 or the upper frame 514. In the present embodiment, the swing fulcrum 32 is provided at a portion extended from the upper plate 514. Alternatively, the support member 30 may be supported by a separate support column extending upward from the lower frame 512 in the same manner as in FIG.

  In the present embodiment, the weight 550 is guided and supported so as to be displaceable in a dead space located in a space between the lower frame 512 and the upper frame 514. In the present embodiment, the weight 550 is inserted between a plurality of guide shafts 520 and 520 extending vertically between the lower frame 512 and the upper frame 514 and is supported so as to be able to move up and down. Not limited to this, the weight 550 may be supported so as to be rotatable around the rotation fulcrum as shown in FIG. 1 or FIG. If the weight 550 is rotatably supported around the rotation fulcrum, the load can be varied as in the first and fifth embodiments of the present invention.

  The load can be varied on the principle of “leverage” simply by lifting and lowering the weight 550 as in the present embodiment. That is, in FIG. 24, the distance L1 from the swing center 32 (fulcrum) of the support member 30 that is the swing arm to the load action line (force point) in the vertical direction of the grip 12, and the tail portion 34C from the swing center 32. This is because the ratio L1 / L2 of the distance L2 to the load action line (action point) in the vertical direction changes depending on the position of the grip 12. Unlike the first and fifth embodiments, when the weight 550 is guided up and down, the moment acting on the load acting line of the tail portion 34C is substantially constant, but if the ratio L1 / L2 is large, the force to push down the grip 12 is small. That's it. When the grip 12 is pushed down from the state shown in FIG. 24, the distance L1 increases until the arm 34B supporting the grip 12 becomes horizontal, and conversely, the distance L2 decreases, so that the load can be varied to gradually decrease. Become.

  In this embodiment in which the weight 550 is guided so as to be able to move up and down, for example, the connecting member is connected to at least one of the pulleys 530 and 532 supported by the upper frame 512, for example, one end is connected to the support member 30, and the other end is 2 A string-like member, such as a wire 540, connected to a weight 550 through two pulleys 530 and 532 is included. Note that at least one pulley 530 is sufficient to connect the wire 540 to the weight 550 that can be raised and lowered, and a plurality of pulleys are not necessarily required. Further, when the weight 550 is supported so as to be rotatable around the rotation fulcrum, the connecting member uses a pulley and a wire as described above, and a link whose both ends are rotatable with respect to the weight 550 and the support member 30. be able to.

  In the present embodiment, the weight 550 is guided and supported in a dead space between the lower frame 512 and the upper frame 514 so as to be displaceable in conjunction with the operation of the operation unit, so that the training apparatus can be greatly reduced in size.

  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, although the above-described embodiment has exemplified the dipping device, the high pulley device, the pullover device, and the leg press device, it is needless to say that the embodiment is not limited thereto. The present invention can be applied to various types of training devices that move a muscle or a joint of a body by a user moving one or two operation units against a load.

  10 Dipping device, 12 Grip (operation part), 20 Base, 22 Leg part, 23 Operation pin (Sitting height adjusting device), 24 Lifting part, 26 Seating part, 28, 28A Strut, 28B Lifting part, 29 Grip height Adjustment device, 29A drive cylinder, 29A1 rod, 29A2 cylinder, 29B operation pin, 29C engagement hole, 30 support member, 32 rocking fulcrum, 34 rocking arm, 34A base, 34B arm, 34C tail, 34D fixing plate, 40 connecting member, 40A, 40B link, 42 connecting fulcrum, 44 connecting bracket, 46 wire (string member), 50 weight (first weight), 50A unit weight plate, 52 rotating fulcrum, 54 weight supporting member, 60 Second weight, 62 length adjusting device, 100 high pulley device, 102 Lip (operation part), 104 strut, 110 support member, 112A to 112F fulcrum, 114A to 114F link, 116 parallel link mechanism, 120 weight, 122 rotation fulcrum, 124 first pulley (pulley), 130 connecting member, 132 Wire (string-like member), 134 connection fulcrum, 136 connection bracket, 200 pullover device, 202 operation part (operation bar), 204 seating part, 206 backrest part, 210 strut, 220 support member, 222 swing fulcrum, 224 arm , 230 weight, 232 pivot point, 234 pulley, 240 connecting member, 242 wire (string member), 250 pulley, 300 leg press device, 302 foot pedal (operation part), 304 seating part, 306 backrest part, 308 frame 310 support part 312A to 312D fulcrum, 314A to 314D link, 316 parallel link mechanism, 318 frame, 320 weight, 322 rotation fulcrum, 324 pulley, 330 connecting member, 332 wire (string member), 334 connecting bracket, 400 dipping device, 410 weight support member, 410A to 410C support part, 412 weight support member, 414 support rod, 420 weight, 422 supported part, 424 notch part, 426 ring type weight, 430A, 430B grip interval adjustment device, 432A, 432B first , Second rotation shaft portion, 434A, 434B, first and second moving bodies, 446A, 446B, first and second links, 450-456, first to fourth fulcrum, 460, 470 grip interval adjusting device, 472A first cam, 472 Second cam, 474A First cam follower, 474B Second cam follower, 490 long hole, 500 dipping device, 510 frame frame, 512 lower frame, 514 upper frame, 516, 518 vertical frame, 520 guide shaft, 530, 532,540 Connecting member, 550 weight

Claims (7)

In the training device that moves the muscles or joints of the body by the user moving the operation unit against the load,
A support member that supports the operation unit in a reciprocating manner;
A weight support member, one end of which is rotatably supported by a rotation fulcrum and the other end of which extends to the rotation radius;
Wherein mounted on the weight support member, the forward and reverse directions of rotation of the counterweight holding member, and at least one weight for varying the moment about said pivot point,
A connecting member that connects the supporting member and the weight supporting member and rotates the weight supporting member in the forward and reverse directions in conjunction with the reciprocating movement of the operation unit;
A training apparatus comprising: In claim 1 ,
The training apparatus according to claim 1, wherein the weight support member includes a plurality of support portions that support the at least one weight with different distances from the rotation fulcrum to the center of gravity of the at least one weight. In claim 1 ,
The weight support member is configured to support at least one weight by changing a distance from the rotation fulcrum to a center of gravity of the at least one weight by changing an attachment posture of the at least one weight. A training apparatus having a support portion. In the training device that moves the muscles or joints of the body by the user moving the operation unit against the load,
A support member that supports the operation unit in a reciprocating manner;
At least one weight that is rotatably supported by the pivot fulcrum, and that varies the moment about the pivot fulcrum by forward and reverse rotation;
A connecting member that connects the support member and the at least one weight, and rotates the at least one weight in the forward / reverse direction in conjunction with the reciprocating movement of the operation unit;
A pulley that rotates in the forward and reverse directions around the rotation fulcrum ;
I have a,
The at least one weight is attached to the pulley so that a center of gravity is provided at a position eccentric from the rotation fulcrum of the pulley,
The connection device includes a string-like member having one end fixed to the pulley and wound around the pulley according to the rotation of the pulley. In the training device that moves the muscles or joints of the body by the user moving the operation unit against the load,
A support member that supports the operation unit in a reciprocating manner;
At least one weight that is rotatably supported by the pivot fulcrum, and that varies the moment about the pivot fulcrum by forward and reverse rotation;
A connecting member that connects the support member and the at least one weight, and rotates the at least one weight in the forward / reverse direction in conjunction with the reciprocating movement of the operation unit;
Have
The support member is
A swing fulcrum,
A swing arm in which an intermediate position in the longitudinal direction is swingably supported by the swing support point, the operating portion is supported on one end side in the longitudinal direction, and a swing arm in which the other end side in the longitudinal direction is connected to the connecting member; ,
A training apparatus comprising: In the training device that moves the muscles or joints of the body by the user moving the operation unit against the load,
A support member that supports the operation unit in a reciprocating manner;
At least one weight that is rotatably supported by the pivot fulcrum, and that varies the moment about the pivot fulcrum by forward and reverse rotation;
A connecting member that connects the support member and the at least one weight, and rotates the at least one weight in the forward / reverse direction in conjunction with the reciprocating movement of the operation unit;
Have
The support member has a parallel link mechanism including a plurality of fulcrums and a plurality of links,
The operation unit is guided in parallel movement by the parallel link mechanism,
The training apparatus, wherein the connecting member is connected to one of the plurality of links of the parallel link mechanism at a position away from the plurality of fulcrums. In any one of Claims 1 thru | or 6 .
Struts,
An elevating part that can be raised and lowered with respect to the support;
A height adjusting device for adjusting the height position of the elevating unit with respect to the support;
Further comprising
The training apparatus, wherein the support member and the rotation fulcrum are supported by the elevating unit.

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