JP2009153615A - Passive exercise device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a passive exercise device capable of surely preventing a user from excessively pushing a grip part in an outward movement and reducing the burden of the user's muscle in the inward movement. <P>SOLUTION: This passive exercise device 1 includes a grip part 2 being held by a user A in a posture of push-up, an operation part 3 substantially horizontally moving the grip part 2 and, when the user A applies the body weight thereto to reciprocate the grip part approaching/separating with respect to the user A, generates a change in an angle from the upper bodies of the arms to consequently train the stretching/contracted muscles. This device includes a stopper 4 which stops the reciprocation of the grip part 2 at a reciprocation halfway point where the user A reciprocates the grip part 2 by a predetermined distance, and a drive means 5 for actuating the grip part 2 in the inward movement direction when the user inward moves the grip part 2 from the reciprocation halfway point. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a passive motion apparatus.

  2. Description of the Related Art Conventionally, a gripping unit 2 gripped by a user in a standing posture and an operation unit 3 that enables the gripping unit 2 to move substantially horizontally, and the user puts his / her weight on the gripping unit 2 close to the user. As an exercise device 1 ′ that can train a muscle that expands and contracts along with an angle change from the upper body of the arm by reciprocating in a separating direction, the operation unit 3 is a rod-shaped grip unit 2. An apparatus as shown in FIG. 7 is known, which is composed of running wheels 9 that are rotatably provided around the axis (see, for example, Patent Document 1).

  In this type of exercise device 1 ′, when the user pushes the grip portion 2 in a direction away from himself / herself, there is a tendency to push the grip portion 2 too far in the separation direction, so that the muscle is forcibly stretched. On the other hand, at the time of backward movement in which the grip portion 2 in a separated state is brought close to the user, a heavy muscle exercise, which is often performed from a relatively unreasonable posture, is imposed on the user and the muscle strength Although it can be improved, it has been difficult for users with weak muscle strength or elderly people to be shunned because the strength load is too great.

In the exercise device 1 ′ of Patent Document 1, a rotary damper is interposed between the grip portion 2 and the traveling wheel 9, and a rotational load is applied to the traveling wheel 9 by the rotary damper. According to this rotary damper, it becomes a resistance when pushing the grip part 2 so as to be separated from the user, and the momentum of pushing the grip part 2 can be reduced. It does not prevent injury, and it imposes an exercise that requires a greater muscle load on the user for an exercise that is close to the user, which is an exercise with a large muscle load. Are increasingly shunned by weak users.
JP 2004-223222 A

  The present invention has been made in view of the above points, and the object of the present invention is to reliably prevent the user from excessively pushing the grip portion during the forward movement and to provide muscles to the user during the backward movement. It is an object of the present invention to provide a passive motion apparatus that can reduce the load.

  In order to solve the above-mentioned problem, in the passive motion apparatus according to claim 1, the grip part 2 gripped by the user A in the standing posture and the operation part 3 that enables the grip part 2 to move substantially horizontally. The muscle that stretches and contracts along with the change in the angle from the upper body of the arm by reciprocating the grip portion 2 in the direction of approaching / separating from the user A with the weight applied by the user A , A stopper 4 for stopping the forward movement of the gripping part 2 at a reciprocating folding point where the user A has moved the gripping part 2 forward by a predetermined distance, and a user A reciprocating the back and forth. A driving means 5 is provided for driving the grip portion 2 in the backward movement direction as the grip portion 2 is moved backward from the point.

  According to this, the gripping part 2 can be reliably stopped at the reciprocating folding point during the forward movement by the stopper 4, and the user A can be reliably prevented from pushing the gripping part 2 too much, and the muscle is forcibly stretched. In addition, the user A can drive the gripping part 2 in the backward movement direction as the user A moves the gripping part 2 backward from the reciprocating folding point by the driving means 5. The muscle load on the user A at the time of return can be reduced, and the muscle training can be performed without difficulty for the user A having weak muscle strength.

  Further, in the passive motion apparatus according to claim 2, in claim 1, the detection sensor 6 for detecting the forward movement distance of the gripping part 2 that moves forward and the gripping part 2 have reached the reciprocal folding point. And a control unit 7 that operates the stopper 4 to stop the forward movement of the gripping unit 2 when the detection sensor 6 detects this. According to this, it can prevent reliably that the user A pushes the holding | grip part 2 too much by electrical control.

  Further, in the passive motion apparatus according to claim 3, the apparatus body 8 according to claim 1 or 2 is rotatable to the apparatus body 8 in order to run the apparatus body 8 provided with the grip portion 2 on the floor surface B. The running wheel 9 provided constitutes the operation unit 3, and the driving means 5 is configured to rotate the running wheel 9. According to this, the gripping part 2 can be moved substantially horizontally together with the apparatus main body 8 by rolling the traveling wheel 9 to the floor surface B, and the substantially horizontal movement of the gripping part 2 can be secured with an easy structure.

  In the present invention, it is possible to reliably prevent the user from pushing the grip portion too much at the time of forward movement and to reduce the muscle load on the user at the time of backward movement.

  Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings.

  As shown in FIG. 1A, the passive motion apparatus 1 of the present example includes a grip portion 2 gripped by a user A in a standing posture and an operation portion 3 that enables the grip portion 2 to move substantially horizontally. The user A applies weight and reciprocates the grip portion 2 in the direction of approaching / separating from the user A, so that an angle change from the upper body of the arm occurs, and the muscles that expand and contract with this change are trained. A stopper 4 that stops the gripping part 2 at a reciprocating folding point where the user A has moved the gripping part 2 forward by a predetermined distance; and a user A that grips the gripping part 2 from the reciprocating folding point. And a driving means 5 for driving the gripping part 2 in the backward movement direction as it is moved backward.

  In other words, the stopper 4 can reliably stop the gripping portion 2 at the reciprocal folding point when moving forward, and can surely prevent the user A from pushing the gripping portion 2 too much, and the muscles can be stretched and damaged by force. In addition, the user A drives the gripping part 2 in the backward movement direction as the user A moves the gripping part 2 backward from the reciprocating folding point by the driving means 5. It is possible to reduce muscle load during movement and to perform muscle training without difficulty for the user A having weak muscle strength.

  Specifically, as shown in FIG. 1B, the passive motion apparatus 1 of this example includes a device main body 8 in which a rod-shaped grip 2 is protruded left and right, and an operation unit rotatably mounted on the device main body 8. 3 and traveling wheels 9 constituting 3. In particular, the traveling wheel 9 of this example is formed in a cylindrical shape, and a rod-shaped grip projecting left and right from the device body 8 so as to accommodate the device body 8 in its inner space and cover the outer periphery of the device body 8. It is provided so as to be rotatable around the axis of the portion 2. A user A in a standing posture holds each grip 2 with both hands, and moves the traveling wheel 9 in the front-rear direction of the user A (the direction away from the user A is the front, and the direction close to the user A is the rear. The main body 8 moves back and forth on the floor surface B. That is, by rolling the traveling wheel 9 to the floor surface B, the grip portion 2 can be moved to a certain height on the floor surface B, and the substantially horizontal movement of the grip portion 2 is ensured with an easy structure. ing.

  Further, as the driving means 5, an outer rotor type brushless motor 10 is used. The motor 10 includes a stator 11 provided on the apparatus body 8 side, a rotor 12 provided on the traveling wheel 9 side, and a magnetic pole sensor 13 such as a Hall element that detects the rotational position of the rotor 12. The rotor 12 is provided with a field magnet 14, and the stator 11 is provided with a plurality of coil portions 15 in the circumferential direction. The rotor 12 detected by the magnetic pole sensor 13 by the control unit 7 provided in the apparatus main body 8. The rotor 12 is driven to rotate by controlling the current to flow through the appropriate coil portion 15 at an appropriate timing according to the rotational position. Although not shown, the apparatus main body 8 is provided with a battery unit that supplies power to the motor 10.

  The driving means 5 is operated so as to rotate the traveling wheel 9 backward (in the backward movement direction of the gripping portion 2) as the user A moves the gripping portion 2 backward from the reciprocating folding point. Thus, the user A assists the backward movement of the grip portion 2. The driving means 5 may be operated when the user A moves the grip portion 2 forward. In this case, the driving means 5 acts as a resistance when the user A moves the grip portion 2 forward. Strength training effect can be enhanced.

  Further, as shown in FIG. 2, the stopper 4 is provided on the apparatus main body 8 so as to make the plunger 17 project and retract, and the stopper 4 is engraved on the inner peripheral portion of the traveling wheel 9 so that the tip of the plunger 17 is locked. And ratchet teeth 18 to be formed. When the solenoid 16 is energized and the tip of the plunger 17 is locked to the ratchet teeth 18, the traveling wheel 9 cannot be rotated forward. Here, the stopper 4 is controlled by the control unit 7 when it is detected by the detection sensor 6 that detects the forward movement distance of the forward movement gripping unit 2 that the gripping unit 2 has reached the reciprocal folding point. It is actuated to stop the forward movement of the grip portion 2. In this example, the magnetic sensor 13 is also used as the detection sensor 6 to simplify the configuration. Specifically, according to the detection of the rotational speed of the traveling wheel 9, the moving distance of the traveling wheel 9, and hence the moving distance of the gripping part 2, can be detected, that is, the forward moving distance and the backward moving distance of the gripping part 2 can be detected. Yes.

  Further, in this example, an operation unit (not shown) is provided in the grip unit 2, and the user A operates the operation unit at the start of the forward movement of the grip unit 2 and inputs the forward movement start point of the traveling wheel 9 to the control unit 7. Have been to. After the user A inputs the forward movement start point of the traveling wheel 9 to the control unit 7, the control unit 7 detects the forward movement distance of the gripping unit 2 by the detection sensor 6. It is possible to determine the reciprocating folding point that has been moved forward by a predetermined distance, and the stopper 4 can be accurately operated at the reciprocating folding point to stop the forward movement of the grip portion 2. That is, a control block diagram as shown in FIG. 3 can be formed, and the passive motion apparatus 1 can be operated according to the flow as shown in FIG.

  In addition, it is also preferable that the position of the desired reciprocal folding point (the movement distance of the gripping unit 2 to the reciprocating folding point) can be input to the control unit 7 on the operation unit. Since the reciprocating folding point can be set according to the usage pattern, the usability of the passive motion apparatus 1 can be improved.

  The passive motion apparatus 1 having the above-described configuration reliably prevents the grip portion 2 from being pushed excessively during forward movement by electrical control and can reduce the muscle load during backward movement. It may be a device that makes this possible by a mechanism.

  As a mechanical mechanism, for example, as shown in FIG. 5, an elastic material 19 such as a coil spring that rotates and biases the traveling wheel 9 backward is interposed between the apparatus body 8 and the traveling wheel 9, and the apparatus body 8. A mechanism in which a rotation amount restricting means 20 for restricting the traveling wheel 9 to a constant rotation amount is provided between the traveling wheel 9 and the traveling wheel 9. As the rotation amount restricting means 20, a mechanism in which a guide groove 21 with ends is provided in one of the traveling wheels 9 or the apparatus main body 8 and a guide protrusion 22 that is inserted into the guide groove 21 in the other can be employed.

  Here, when the traveling wheel 9 urged by the elastic member 19 is in the natural state, the guide protrusion 22 is positioned at one end edge of the guide groove 21, and the traveling wheel 9 in the natural state is used by the user A. When the elastic member 19 moves forward against the urging force of the elastic member 19, the guide protrusion 22 slides toward the other end along the guide groove 21, and the traveling wheel 9 rotates by a predetermined amount to hold the grip 2 When the reciprocating folding point is reached, the guide protrusion 22 comes into contact with the other end edge of the guide groove 21 to prevent further rotation of the traveling wheel 9 and consequently the movement of the gripping portion 2, so that the user A moves forward. It is reliably prevented that the grip portion 2 is pushed too much. That is, the rotation amount restricting means 20 constitutes the stopper 4. The guide protrusion 22 is provided so as to be movable in the direction of the rotation axis of the apparatus main body 8 so as not to inhibit the sliding into the guide groove 21. Further, when the user A moves the grip portion 2 backward from the reciprocating folding point, the elastic wheel 19 elastically deformed during the forward movement is elastically restored, so that the traveling wheel 9 is rotationally driven rearward. The muscle load on the user A during movement is reduced. That is, the elastic material 19 constitutes the driving means 5.

  Thus, by adopting a mechanical mechanism instead of the previous electrical control for the operation control of the driving means 5 and the stopper 4, it is not necessary for the user A to replace the battery. Usability of the exercise device 1 can be enhanced.

  In the example of the above embodiment, the traveling wheel 9 rotates around the outer periphery of the apparatus main body 8. However, the present invention is not limited to this. For example, as shown in FIG. A plurality of traveling wheels 9 are arranged on the floor B. When the plurality of traveling wheels 9 are grounded and rolled on the floor B, the apparatus main body 8 moves on the floor B while maintaining a predetermined posture. May be. In this case, it is preferable that the direction in which the gripper 2 protrudes from the apparatus main body 8 is different so that the movement direction of the apparatus main body 8 can be set to any direction such as the left-right direction of the user A.

  In the example of the above-described embodiment, the apparatus main body 8 provided with the grip part 2 as the operation part 3 is configured by the traveling wheels 9 that roll on the floor surface B. However, the present invention is not limited to this. It can also be configured by a mechanism that slides the apparatus main body 8 using a mechanism or the like.

It is a passive motion apparatus of the example of embodiment of this invention, (a) is a side view explaining the use condition of a passive motion apparatus, (b) is a schematic longitudinal cross-sectional view of a passive motion apparatus. . It is a sectional side view of the principal part same as the above. It is a control block diagram same as the above. It is an operation | movement flowchart same as the above. It is a general | schematic cross-sectional perspective view of the principal part of the other-movement exercise apparatus of other examples of embodiment. It is a side view explaining the use condition of the passive motion apparatus of the other example of embodiment. It is a perspective view of the exercise device of a prior art.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Passive motion apparatus 2 Gripping part 3 Operation | movement part 4 Stopper 5 Driving means 6 Detection sensor 7 Control part 8 Apparatus main body 9 Running wheel 10 Motor

Claims (3)

  Equipped with a gripping part gripped by a user in a standing posture and an operation part that enables the gripping part to move substantially horizontally, and the user reciprocates in a direction to move the gripping part closer to and away from the user while applying weight. Is a reciprocating fold point where the user has moved the gripping part by a predetermined distance, which is a passive movement device that can train the muscle that expands and contracts along with the angle change from the upper body of the arm. And a stopper for stopping the forward movement of the gripping portion, and a driving means for driving the gripping portion in the backward movement direction as the user moves the gripping portion backward from the reciprocating folding point. Dynamic exercise device.   A detection sensor that detects the forward movement distance of the gripping portion that moves forward, and a control unit that operates the stopper to stop the forward movement of the gripping portion when the detection sensor detects that the gripping portion has reached the reciprocal folding point. The passive motion apparatus according to claim 1, further comprising:   In order to run the apparatus main body with the gripping part protruding on the floor surface, the operating part is constituted by a traveling wheel rotatably provided on the apparatus main body, and the driving means rotates the traveling wheel. The passive motion apparatus according to claim 1 or 2.

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