JP2007143773A - Exercise apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an exercise apparatus for performing exercises of the upper limbs and lower limbs by moving a seat in front and back directions, in which the exercise of muscles suited to a user can be performed and the bending and stretching exercises of upper limbs can excellently performed by generating a load matched with the body weight of a user on a seat. <P>SOLUTION: The exercise apparatus is provided with the seat 20 where the user is to be seated and foot rest parts 33 and 34 positioned on the front side of the seat 20. The seat 20 is provided so as to be movable in the front and back directions and to be elevated as being moved to the back. On the side of the foot rest parts 33 and 34, a grip 55 movable in the front and back directions is provided. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an exercise tool, and more particularly to an apparatus for sitting on a movable seat and training a muscle including upper and lower limbs.

Conventionally, as an exercise tool for training the muscles of the upper limbs and lower limbs, an exercise that performs training by exercising similar to rowing, with grips on a horizontally moving seat and a rope wound around a winding drum A tool is proposed by patent document 1, for example.
Japanese Patent Publication No. 6-69500

  In the prior art, the seat on which the user sits only moves horizontally in the front-rear direction.

  For this reason, when the seated seat moves in the front-rear direction due to the flexion / extension motion of the lower limbs (the bending motion of the knee), the load accompanying the movement of the seat is almost the same regardless of the weight of the weight.

  However, it is preferable to generate a large load for a user with a large weight and a small load for a user with a small weight during flexion and extension of the lower limbs.

  Therefore, the present invention proposes an exercise device in which the load naturally changes due to the weight of the user during flexion and extension of the lower limbs, and the grip is also configured to be suitable for use.

  In order to solve the above-described problem, the invention according to claim 1 is provided with a seat on which a user is seated and a footrest portion located on the front side of the seat, and the seat is provided movably in the front-rear direction and rearward. It is provided so as to rise as it moves, and a grip that can move in the front-rear direction is provided on the footrest side.

  According to a second aspect of the present invention, in the first aspect of the present invention, the grip is provided on an extendable post formed by slidably fitting an inner cylinder and an outer cylinder, and the post is disposed below the post. Is provided so as to be rotatable in the front-rear direction.

  According to a third aspect of the present invention, in the first aspect of the present invention, the grip is provided on an extendable post formed by slidably fitting the inner cylinder and the outer cylinder, and the post is disposed below the post. The post is provided so as to be rotatable in the front-rear direction, and the post is provided with load applying means for applying a predetermined load to the extending action.

  According to a fourth aspect of the present invention, in the invention according to the third aspect, the load applying means is constituted by an urging means erected between the inner cylinder and the outer cylinder so as to urge the post in a contracting direction. It is characterized by.

  According to the present invention, the seat is provided so as to be movable in the front-rear direction, and is provided so as to rise as it moves backward, so when extending the knee joint from the bent state and moving the seat backward, For a heavy user, strong leg strength is required to increase the weight upward, and for a light weight user, weak leg strength is sufficient.

  Therefore, the load naturally changes lightly according to the weight of the user's weight, and muscle exercise suitable for the user can be performed. That is, the knee joint flexion movement is promoted by its own weight.

  In addition, by the above-described exercise, the quadriceps, abdominal and back muscles can be trained and the functions of the lower limbs and trunk can be trained.

  According to the invention of claim 2, since the post expands and contracts, when the elbow is bent, the post can be extended, and when the elbow is extended, the post can be contracted and raised, The upper and lower limbs can be bent and stretched at approximately the same height.

  According to the third aspect of the present invention, it is possible to exercise while generating a predetermined load when the arm is bent.

  According to invention of Claim 4, a load provision means can be arrange | positioned in a post | mailbox.

BEST MODE FOR CARRYING OUT THE INVENTION The best mode for carrying out the present invention will be described based on an embodiment shown in the drawings.
In FIG. 1, the exercise tool 1 includes a seat portion 2, a handle portion 3, and footrest portions 33 and 34.

  The seat portion 2 has struts 6 and 7 fixed to a foundation embedded in the ground or an indoor floor, and the upper end of the rear strut 7 is set higher than the upper end of the front strut 6. A substrate 8 is installed and fixed between the upper end of the front column 6 and the upper end of the rear column 7, and the substrate 8 is inclined so that the front side is lowered and the rear side is raised. The inclination angle θ of the substrate 8 with respect to the horizontal plane is set as desired, but is set to about 10 degrees in the embodiment.

  Front and rear frame plates 9 and 10 and left and right frame plates 11 and 12 are provided on the upper side of the substrate 8, and a rectangular chamber 13 having an open top and a long front and rear direction is formed on the substrate 8. A guide 14 made of a bar is installed in the room 13 in the center in the left-right direction, and its front end is fixed to the front frame plate 9 and its rear end is fixed to the rear frame plate 10. Has been. Therefore, the guide 14 is also inclined at the same angle θ as that of the substrate 8.

  A movable sheet 15 is provided in the room 13, and the movable sheet 15 includes a front plate 16, a rear plate 17, side plates 18 and 19, and a sheet 20 fixed to the upper surfaces of these plates. The outer dimension between the side plates 18 and 19 of the movable sheet 15 is set smaller than the inner dimension in the left-right direction of the room 13, and the dimension between the front plate 16 and the rear plate 17 is the inner dimension in the front-rear direction of the room 13. A roller 21 is provided below the both side plates 18 and 19 so as to be smaller than the dimensions, and is provided so that the movable sheet 15 can move in the front-rear direction in the room 13. Further, the upper surface of the sheet 20 protrudes upward from the upper surface position of the left and right frame plates 11 and 12.

  A pair of upper and lower rollers 22 and 23 is provided at the center of the movable sheet 14 in the left-right direction of the front and rear plates 16 and 17, and the guide 14 is inserted between the rollers 22 and 23.

  Therefore, the movable sheet 15 is guided by the guide 14 and the roller 21 rolls on the substrate 8 so as to smoothly move in the front-rear direction. Further, the moving sheet 15 moves in the front-rear direction along the inclination angle θ of the upper surface of the substrate 8. Further, the front frame plate 9 serves as a stopper for restricting the movable sheet 15 from moving forward beyond a predetermined position, and the rear frame plate 10 moves the movable sheet 15 backward beyond the predetermined position. It is a stopper that regulates not to.

Next, the footrests 33 and 34 will be described.
Two struts 31 and 32 are erected on the foundation embedded in the ground or on the floor in the room, spaced forward from the seat 2, and the pair of struts 31 and 32 are also separated from each other in the left and right directions. is doing.

  Footrest portions 33 and 34 are respectively fixed to the upper portions of the support columns 31 and 32, and the pair of footrest portions 33 and 34 are separated from the front of the seat portion 2 and in the left-right direction of the seat portion 2. They are fixedly spaced apart from each other around the center. The footrest surfaces 33a, 34a on the seat portion 2 side in the pair of footrest portions 33, 34 are formed as tapered surfaces that descend toward the seat portion 2, and the height of the footrest surfaces 33a, 34a is: The height of the seat 20 is set to be substantially the same as the height of the front end of the seat 20 at the position where the movable seat 15 is moved downward.

Next, the handle part 3 will be described.
As shown in FIGS. 6 and 7, a rotation shaft 35 is installed substantially horizontally in the left-right direction between the pair of footrest portions 33, 34, and both side portions of the rotation shaft 35 are in both footrest portions 33, 34. The bearing member 36 is rotatably supported. Further, both end portions 35 a of the rotating shaft 35 are engaged with load applying means 37 provided on the both footrest portions 33 and 34, and the load applying means 37 rotates around the axis of the rotating shaft 35. Is given a predetermined load. As the load applying means 37, for example, a rotary damper (oil damper) using oil can be used.

  A support arm 38 is fixed to the central portion of the rotation shaft 35, that is, the rotation shaft 35 located in the space between both footrest portions 33, 34. Is rotated integrally with the rotary shaft 35.

  An inner cylinder 40 constituting a handle post 39 is fixed to the tip of the support arm 38. An outer cylinder 41 constituting a post 39 is slidably provided on the outer peripheral surface of the inner cylinder 40 above the support arm 38 so that the post 39 expands and contracts.

  The upper end of the inner cylinder 40 is fixedly provided with an upper spring receiving portion 49a, a cone portion 49b, and a cone 49 integrally formed with a cylinder portion 49c having a male screw formed on the outer periphery. A rod support member 44 is fixed to the inner surface of the upper end portion of the outer cylinder 41 by a pin 43. Reference numeral 44a denotes a cushion material provided on the rod 45 side. A rod 45 is inserted into the inner cylinder 40, and an upper end side of the rod 45 penetrates the cone 49 slidably. An upper end of the rod 45 is screwed and fixed to the rod support member 44 of the outer cylinder 41. A lower spring receiver 46 is fixed to the lower end with a nut. Further, a coil spring 47 as an urging means is interposed between the upper spring receiving portion 49a and the lower spring receiving 46 so as to be located on the outer periphery of the rod 45. It is energizing downward. The coil spring 47 serves as a load applying unit.

  Accordingly, the axial length of the post 39 expands and contracts due to the movement of the outer cylinder 41 in the axial direction, and the rod 45 is always urged downward in FIG. Is being energized.

  The cone portion 49b is formed in a conical shape with a reduced diameter on the upper side, and a nut 52 is screwed on the outer periphery of the upper portion of the cylindrical portion 49c. Further, a coil spring 51 is interposed between the nut 52 and a control member 50 described later, and the braking member 50 is urged downward by the coil spring 51.

  A braking member 50 made of an elastic material such as resin or rubber is disposed on the outer periphery of the cone portion 49b. The member 50 has an inner peripheral surface formed into a tapered surface substantially matching the outer peripheral tapered surface of the cone portion 49b, an outer peripheral surface formed into a diameter that slides on the inner surface of the outer cylinder 41, and an axial section. Is formed in a wedge shape.

  When the outer cylinder 41 moves upward in FIG. 8, the braking member 50 is moved upward in FIG. 8 by friction between the outer cylinder 41 and the braking member 50, and the braking member 50 and the cone portion 49b. , The frictional resistance between the braking member 50 and the outer cylinder 41 decreases, and when the outer cylinder 41 is lowered, the braking member 50 is pushed toward the cone portion 49b (downward) by friction with the braking member 50, As the braking member 50 expands in the radial direction, the frictional resistance between the outer cylinder 41 and the control member 50 increases, and braking acts on the movement of the outer cylinder 41.

  With the above configuration, when the outer cylinder 41 moves so that the post 39 extends from the contracted state of FIG. 7 as shown in FIG. 9, the coil spring 47 is compressed against the moving force (pulling force). When the outer cylinder 41 is moved so that the post 39 is contracted, the outer cylinder 41 is suddenly returned by the urging force of the coil spring 47 due to the frictional resistance of the braking member 50. Is to prevent.

  A handle bar 54 that is orthogonal to the axial direction of the post 39 is fixed to the upper end of the outer cylinder 41 of the post 39, and grips 55 are provided at both ends of the handle bar 54. Yes.

  In addition, a shaft 56 orthogonal to the axial direction of the post 39 is fixed to the lower end of the inner cylinder 40 in the post 39, that is, below the support arm 38. A balance weight 57 is provided. The weight of the weight 57 is set to a weight that can naturally return the post 39 to the vertical state as shown in FIG. 1 when not in use.

Next, the usage method will be described.
A user, for example, an elderly person sits on the seat 20 of the seat 2 as shown in FIG. 10, and the rear surfaces of both legs are hung on the footrest surfaces 33 a and 34 a of both footrest portions 33 and 34, and both grips 55 on the post 39 are held. Hold with both hands.

  This initial user posture is indicated by X in FIG. 10, with both lower limbs F in a bent state and both upper limbs A extending forward to grip both grips 55, 55 of the post 39. At this time, the post 39 is in a vertical state with respect to the ground and its axial length is reduced.

  Next, when both lower limbs F are extended from the posture X and the user's trunk B is pushed backward by the muscle strength of the lower limbs F, the trunk B together with the seat 20 of the moving sheet 15 is shown in FIG. Move backward as shown by.

  Further, along with this rearward movement, both upper limbs A are pulled toward the trunk B as shown by Y in FIG. 10 to bend the elbow, and the grip 55 of the post 39 is pulled toward the trunk B to extend the post 39. Let

  When both the lower limbs F are extended and the trunk B is moved rearward as described above, the moving sheet 15 moves rearward along the substrate 8 disposed at the predetermined angle θ of the rearward rise, Similarly, 20 rises as it moves backward. That is, in FIG. 10, the seat 20 moves rearward along a rearward rising line Z having an angle θ with respect to the horizontal plane, and moves to a higher position in proportion to the rearward movement amount.

  Therefore, when moving backward, muscle strength is required to extend the lower limb corresponding to the force that increases the weight W of the user by the amount of H.

  Therefore, a user with a heavy weight W needs to extend the lower limbs with a strong force that matches the weight, and a user with a light weight W has a weak force that matches the weight. An extension movement is sufficient. Therefore, it is possible to exercise the extensor muscles of the lower limbs that match the weight.

  That is, the exercise of the knee extension muscle group is promoted by its own weight, which is effective for the muscle strength of the lower limbs.

  Further, when the seat 20 is moved rearward, when pulling the upper limb A toward the trunk B side, it is necessary to pull the outer cylinder 41 of the post 39 together with the grip 55 as shown in FIG. is there.

  By this pulling operation of the outer cylinder 41, the rod 45 moves upward in the inner cylinder 40, and its lower spring receiver 46 moves upward. By this movement, the coil spring 47 is compressed. Therefore, in the operation of pulling the outer cylinder 41 together with the grip 55 by the upper limb, the repulsive force of the coil spring 47 generated when the coil spring 47 is compressed becomes a load, and the upper limb A is pulled against this load. Therefore, the exercise of the muscle that bends the elbow is performed. Further, at this time, the back muscles are also exercised to warp the trunk B backward as indicated by Y in FIG.

  Since the outer cylinder 41 moves upward in FIG. 8 when the post 39 is extended, the braking member 50 is pushed upward by the frictional force with the outer cylinder 41. Therefore, the frictional force between the braking member 50 and the cone portion 49b is reduced, and the load at the time of extension is mainly the load by the coil spring 47.

Next, a case where the posture of Y is changed to the posture of X will be described.
When moving from the Y posture to the X posture, the knee 20 is bent as shown in FIG. 10, so that the seat 20 of the moving seat 15 moves forward and the trunk B also moves forward. Therefore, in combination with the backward movement, the lower limb is bent and stretched.

  Further, when moving forward, as shown by X in FIG. 10, the upper limb A is extended forward to move the grip 55 forward, and the post 39 is contracted to return to the vertical state.

  When the post 39 shrinks, the outer cylinder 41 moves downward from the extended state of FIG. When the outer cylinder 41 moves downward, the braking member 50 expands in the radial direction as described above, the frictional resistance between the outer cylinder 41 and the braking member 50 increases, and a load against the return movement acts on the outer cylinder 41. The outer cylinder 41 is braked.

  Therefore, when the upper limb A is extended and the post 39 is raised to a vertical state, the post 39 is prevented from suddenly returning and the arm can be gently extended.

In addition, the abdominal muscles are also exercised to tilt the trunk B forward.
By exercising as described above, not only the muscles of the upper limbs and lower limbs but also other muscles are exercised, so that an exercise tool suitable for exercise of the whole body is obtained.

  That is, training is performed mainly on the quadriceps, abdominal muscles, and back muscles, and the functions of the lower limbs and trunk are trained, for example, leading to fall prevention in the elderly.

  Further, since the post 39 in the handle portion 3 is formed to be extendable and contractible, the upper body moves forward as indicated by X in FIG. 10, and when the upper limb A is extended, the post 39 contracts and the upper body moves like Y. The pole 39 extends in a state where it moves backward and the upper limb A is bent. Therefore, the user can move the upper end of the post, that is, the grip 55 back and forth along a smooth curve, so that the upper limb can bend and stretch while moving the upper limb slightly up and down.

  Assuming that the length of the post 39 is fixed to the length of the post 39 extended like Y, when the post 39 is erected, the upper end of the post 39, that is, the height of the grip 55 is assumed. Becomes abnormally high, causing problems with exercise. On the contrary, if the post 39 is fixed to the length of reduction in the standing state of FIG. 10, when the post 39 is pulled, the grip 55 does not move to the vicinity of the upper body and the elbow cannot be bent. Invite the exercise. The present invention does not have such a problem and enables good exercise.

  In addition, as described above, the grip 55 is provided on a post that can be expanded and contracted, and a load applying means is provided in the post, so that a drum or a rope for winding a rope having a grip as in the prior art can be weighted. Compared to the one to be attached, it is effective for downsizing the equipment and simplifying the external shape and installing it outdoors such as in parks.

  The carrying tool of the present invention can be installed indoors.

The perspective view which shows the Example of the exercise tool of this invention. The top view of the exercise tool of FIG. The side view of FIG. FIG. 3 is a front view of FIG. 2. The DD sectional view taken on the line in FIG. The partial cross section front view which shows internal structures, such as a handle | steering-wheel part. FIG. 7 is a central cross-sectional view of FIG. 6 showing a cross section of the post portion. The partial expanded sectional view which shows the internal structure of a post | mailbox. The figure which moved the outer cylinder upward from the state of FIG. The side view explaining a use state.

Explanation of symbols

2 Seat part 3 Handle part 20 Seat 33, 34 Footrest part 35 Rotating shaft 39 Post 40 Inner cylinder 41 Outer cylinder 45 Coil spring 55 as load applying means 55 Grip

Claims (4)

  A seat on which a user is seated and a footrest portion located on the front side of the seat are provided, the seat is provided so as to be movable in the front-rear direction, and is provided so as to rise as it moves rearward. An exercise tool comprising a grip that can move in the front-rear direction.   The grip is provided on an extendable post formed by slidably fitting an inner cylinder and an outer cylinder, and the post is provided so as to be rotatable in the front-rear direction around the lower side. The exercise device according to claim 1.   The grip is provided on an extendable post formed by slidably fitting an inner cylinder and an outer cylinder, and the post is provided so as to be rotatable in the front-rear direction around its lower side. 2. The exercise device according to claim 1, further comprising load applying means for applying a predetermined load to the extending action. 4. The exercise device according to claim 3, wherein the load applying means is constituted by an urging means that is laid between an inner cylinder and an outer cylinder so as to urge the post in a direction to reduce the post.

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