JP2021019926A - Chair type exercise instrument - Google Patents

Abstract

To provide a chair type exercise instrument that is effective for waist exercise and also for feet muscle training, and allows the waist exercise and the feet muscle training to be performed at home and in an office easily.SOLUTION: A chair type exercise instrument includes a seating part 1, a bottom seat part 2, and a rotation shaft 3. An upper shaft part 3a of the rotation shaft 3 is pivotally supported by a bearing 31 installed to the seating part 1. A lower shaft part 3b of the rotation shaft 3 is pivotally supported by a bearing 32 installed to the bottom seat part 2. The rotation shaft 3 is configured so that the upper shaft part 3a and the lower shaft part 3b have different vertical axes. A load mechanism 4 is provided for giving a load by moment of inertia to the rotation shaft 3.SELECTED DRAWING: Figure 2

Description

The present invention relates to a chair-type exercise device that can be reasonably used in homes and offices.

Conventionally, as a chair-type exercise device of this type, there is a fitness chair. As shown in FIG. 9, this fitness chair is fixed to a leg 52 having a chair support 51 for installing and supporting it on the ground, and a chair support 51 of the leg 52 in a manner in which one end rotates freely. A rotating component 53 that maintains an appropriate distance on an axis different from that of the other end, and a seating portion 54 that is fixed to the other end of the rotating component 53 in a freely rotating state are provided (Patent Document 1).

According to the above-described configuration, the fitness chair can perform a circumferential rotation motion and a twist exercise with the chair strut as an axis point and a distance from the chair strut as a radius, and twist the hips and waist. It is said that fitness exercise is possible by loosening muscles and moving the body.

Furthermore, as a chair-type exercise device of this type, there is a waist twister health device. As shown in FIG. 10, this waist twister health appliance includes a bottom seat 61, a support column 62, and a seat 63, and a flat base 64 is formed above the bottom seat 61. The support column 62 is a rectangular parallelepiped main body, and the first shaft rod 66 is connected at a position near the first side 65 inside the support column 62, and the second shaft rod 66 is connected at a place near the second side 67 inside the support column 62. 68 are combined. The first shaft rod 66 projects downward from the bottom surface of the support column 62 by using the first insertion portion 71 at the lower end, and is pivotally supported by a shaft hole provided in the center of the flat base 64. The second shaft rod 68 projects upward from the top surface of the column 62 by using the second insertion portion 72 at the upper end, and is pivotally supported by a shaft hole provided in the center below the seat 63. Further, the roller 73 is rotatably brought into contact with the bottom surface of the column 62 near the second side 67 (Patent Document 2).

The waist twister health device is comfortable because the user can sit after sitting without bending his knees or crossing his legs due to the above configuration, and both feet can completely touch the ground. It is said that sports injuries will be avoided and the effect of health promotion will be remarkable because of the effort.

Utility Model Registration No. 313528 Japanese Patent No. 6342466

All of the above-mentioned conventional chair-type exercise equipments can only perform unloaded rotational exercises and twist exercises, and although they are effective for improving health, they are effective for waist dieting. I couldn't say.

In recent years, many exercise devices that are effective for waist dieting are on the market, but the structure is complicated and large-scale, or the structure is too simple and simple, so waist dieting at home or office. There was nothing affordable to do.

Therefore, it is an object of the present invention to solve the above-mentioned conventional problems, and it is assumed that it is effective not only for waist diet but also for leg strength training, and these waist diet and leg strength training are performed. It was made for the purpose of providing chair-type exercise equipment that can be affordably performed at home or in the office.

The chair-type exercise device of the present invention includes a seating portion 1, a bottom seat portion 2, and a rotating shaft 3. An upper shaft portion 3a of the rotating shaft 3 is pivotally supported by the bearing 31 installed in the seating portion 1. A lower shaft portion 3b of the rotating shaft 3 is pivotally supported by the bearing 32 installed on the bottom seat portion 2. The rotating shaft 3 has a vertical axis in which the upper shaft portion 3a and the lower shaft portion 3b are different from each other, and the rotating shaft 3 is provided with a load mechanism 4 for applying a load due to a moment of inertia.

In the chair-type exercise device of the present invention, the seating portion 1 is provided with a tilting mechanism 13, so that the seating portion 1 can be tilted downward.

In the chair-type exercise equipment of the present invention, the load mechanism 4 gives a moment of inertia to the rotating shaft 3 when the support 3d projecting outward from the axis toward the lower shaft portion 3b of the rotating shaft 3 rotates. It is supposed to be due to.

In the chair-type exercise device of the present invention, the weight 41 is attached to the support 3d.

In the chair-type exercise equipment of the present invention, a plurality of the weights 41 are selected and detachably attached to the support 3d.

Since the chair-type exercise equipment of the present invention is provided with the load mechanism, it is effective for the waist diet, and the load mechanism is also not a large-scale one with a complicated structure. Therefore, the waist diet can be used at home or in the office. It has become something that can be done at a reasonable price.

Further, since the chair-type exercise device of the present invention is provided with the tilting mechanism, it is effective for strength training of the foot, and the tilting mechanism also has a complicated structure and is not large-scale. Strength training has become affordable at home and in the office.

It is a perspective view which looked at the chair type exercise equipment of this invention from the front diagonally above. It is a perspective view which looked at the chair type exercise equipment of this invention from the front diagonally below. It is a side view of the chair type exercise equipment of this invention. It is a vertical cross-sectional view which shows an example of the load mechanism of the chair type exercise equipment of this invention. It is a bottom view of the load mechanism shown in FIG. It is a bottom view which shows another example of the load mechanism of the chair type exercise equipment of this invention. It is a bottom view which shows still another example of the load mechanism of the chair type exercise equipment of this invention. It is a bottom view which shows still another example of the load mechanism of the chair type exercise equipment of this invention. It is a perspective view which shows an example of the conventional chair type exercise equipment. It is a perspective view which shows another example of the conventional chair type exercise equipment.

Hereinafter, a mode for carrying out the chair-type exercise device of the present invention will be described in detail with reference to the drawings.

As shown in FIGS. 1 and 2, the chair-type exercise device of the present invention includes a seating portion 1, a bottom seat portion 2, and a rotating shaft 3.

The seating portion 1 is arranged in a horizontal state, and in order to give a sense of stability when the user sits down, the seating portion 1 can be provided with cushioning properties and may have a slightly curved shape. Further, the seating portion 1 may be provided with a waist support portion 11 as shown in order to facilitate the posture when the user is seated. The waist support portion 11 has both side waist support portions 11a and a dorsal side waist support portion 11b, and both side waist support portions 11a can be provided with an inflatable airbag 12. Further, the dorsal waist support portion 11b may be provided with an airbag 12 similar to the one provided on both side waist support portions 11a, if necessary. By inflating these airbags, the user's body can be held and a stable sitting posture can be maintained.

An upper shaft portion 3a of the rotating shaft 3 is rotatably connected to the lower portion of the seating portion 1. Further, the seating portion 1 is provided with a tilting mechanism 13 at the lower portion, and the tilting mechanism 13 enables the seating portion 1 to be tilted downward by an arbitrary angle, for example, about 5 to 15 degrees. There is.

In the illustrated one, the tilting mechanism 13 combines the inner frame body 14 fixed to the lower part of the seating portion 1 with the outer frame body 15 fixed to the upper shaft portion 3a of the rotating shaft 3, and these are combined with the horizontal shaft rod 16. The seating portion 1 can be tilted downward in the forward direction by allowing the inner frame body 14 to move in the seesaw direction in the front-rear direction, but is limited to such a structure. Will not be done.

As shown in FIGS. 3A and 3B, the tilting mechanism 13 is capable of tilting only downward in the front direction by forming a stepped portion 15a having a lowered front side in the outer frame body 15. However, as shown in FIG. 3C, if the stepped portion 15a is lowered on the rear side, the seating portion 1 can be tilted downward in the rearward direction. Further, by eliminating the stepped portion 15a, the seating portion 1 can be tilted downward in the front-rear direction. Further, by rotating the tilting mechanism 13 by 90 degrees and enabling the seesaw movement of the inner frame body 14 in the left-right direction, the seating portion 1 can be tilted downward in the left-right direction.

Further, the tilting mechanism 13 is not designed to maintain this tilted state in a state of being tilted downward in each direction, but is screwed to fix the inner frame body 14 and the outer frame body 15 at the time of tilting. It is also possible to maintain the tilted state by providing a mechanism or a pinning mechanism.

Further, the tilting mechanism 13 can tilt the seating portion 1 downward in all directions by using a spherical bearing (not shown) instead of the seesaw movable one. You can also do it. In this case as well, the tilting state can be maintained by providing a screwing mechanism or a pinning mechanism for fixing the spherical inner ring of the spherical bearing.

The bottom seat portion 2 has a cylindrical body portion 22 formed downward from the periphery of the disk-shaped support portion 21. A lower shaft portion 3b of the rotating shaft 3 is rotatably connected to the upper portion of the support portion 21 of the bottom seat portion 2. Further, inside the body portion 22 of the bottom seat portion 2, a load mechanism 4 for applying a load due to a moment of inertia is provided on the rotating shaft 3.

The rotating shaft 3 is composed of an upper shaft portion 3a, a lower shaft portion 3b, and an intermediate shaft portion 3c. The intermediate shaft portion 3c is bent in a crank shape or the like, and the upper shaft portion 3a and the lower shaft portion 3b are different vertical axes. I am trying to be. The upper shaft portion 3a of the rotating shaft 3 is pivotally supported by a bearing 31 installed in the seating portion 1, and the lower shaft portion 3b of the rotating shaft 3 is supported by a bearing 32 installed in the support portion 21 of the bottom seat portion 2. By being supported by a shaft, the rotating shaft 3 can rotate freely. Therefore, when the rotation shaft 3 is rotated, the seating portion 1 rotates around the lower shaft portion 3b as a fulcrum axis and the distance to the upper shaft portion 3a as a radius. The bearings 31 and 32 receive the load of the seating portion 1 and smooth the rotation of the rotating shaft 3, and ball bearings are usually used, but the bearings are not limited to ball bearings. Further, since the rotating shaft 3 may not look good or lack safety when exposed, it may be between the seating portion 1 and the bottom seat portion 2, or between the tilting mechanism 13 and the bottom seat portion 2. , A tubular cover body (not shown) surrounding the rotating shaft 3 can also be attached.

The load mechanism 4 is based on the moment of inertia given to the rotating shaft 3 when the support 3d projecting outward from the axis to the lower shaft portion 3b of the rotating shaft 3 rotates. Preferably, the support 3d itself may have a weight of 1 to 20 kg, or the weight 41 may be attached to the support 3d. As shown in FIGS. 2, 4 and 5, the support 3d is projected in one direction as being curved in a bow shape in the illustrated one, but is bent or curved in an L shape. It is assumed that it fits in the body portion 22 of the bottom seat portion 2 by making it a straight shape without bending or bending it. Further, the support 3d is not made to project in one direction, but is made to project in two directions at 180 degree intervals as shown in FIG. 6, or as shown in FIG. 7. It may be provided so as to project in three directions at 120 degree intervals, or, although not shown, it may be provided so as to project in four or more directions at equal intervals. Further, the support 3d is not rod-shaped, but may be formed so as to project outward from the axis toward the lower shaft portion 3b of the rotating shaft 3 in a disk shape as shown in FIG. ..

In the illustrated one, the weight 41 is fixedly attached to the tip of the support 3d projecting in a rod shape or the peripheral end portion of the support 3d projecting in a disk shape. It may be attached to 3d so as to be removable. Then, the weight 41 is detachably attached to the support 3d by freely adjusting the weight, so that the load due to the moment of inertia given to the rotating shaft 3 can be increased or decreased. Can be done. For example, two weights of 1 kg, 2 kg, 3 kg, and 4 kg of the weight 41 can be prepared, and the weights can be freely adjusted to 1 to 20 kg by using them individually or by combining them and attaching them to the support 3d. The load due to the moment of inertia given to the rotating shaft 3 can be increased or decreased. Further, the weight 41 can freely adjust the weight, change the position of being attached to the support 3d, and adjust the length and diameter of the support 3d itself to increase the load due to the moment of inertia. It can be made smaller. That is, when the weight 41 is attached to the tip or peripheral end of the support 3d which is the farthest position in the radial direction from the lower end of the lower shaft portion 3b, the load due to the moment of inertia becomes the largest. The load due to the moment of inertia becomes smaller as the support 3d is attached to a position gradually closer to the lower shaft portion 3b from the tip or peripheral end portion. Further, when the weight 41 is attached to the tip of the longest support 3d or the peripheral end of the largest support 3d, the load due to the moment of inertia becomes large, and the tip of the gradually shortened support 3d and gradually shortened. The load due to the moment of inertia becomes smaller as it is attached to the peripheral end of the support 3d which is made smaller.

The chair-type exercise equipment of the present invention configured as described above is used as follows.

First, the user sits in the center of the seating portion 1, puts the heels of both feet on the floor, stretches his back, and looks straight ahead.

Then, the user fixes the head and shoulders and twists the waist to the left and right. Then, since the seating portion 1 rotates around the circumference, the user can easily perform the twisting motion.

In this case, in the conventional chair-type exercise equipment, the seating portion 1 only rotates around the circumference without any load, but in the chair-type exercise equipment of the present invention, the load mechanism 4 causes the rotation shaft 3 to have moment of inertia. When a load due to a moment is applied and the user twists the waist left and right to rotate the seating portion 1 around the circumference, a load due to the moment of inertia is also applied to the seating portion 1, and the user exerts a force on the waist. The seating portion 1 is rotated around the circumference to start the twisting motion. Further, even when the twisting motion is completed, a load due to the moment of inertia is applied to the seating portion 1, and the user applies force to the waist to stop the circumferential rotation of the seating portion 1. Therefore, the waist of the user is strengthened, which is effective for the waist diet.

Next, the user sits near the front of the seat 1, puts the heels of both feet on the floor, stretches his back, and looks straight ahead.

In this case, since the user sits closer to the front part of the seating portion 1, the tilting mechanism 13 causes the seating portion 1 to perform a seesaw motion as shown in FIGS. 3 (a) to 3 (b). Since the user leans downward in the forward direction and the weight of the user is applied forward, the user will support the weight by stepping on both feet.

Therefore, when the user fixes the head and shoulders and twists the waist to the left and right, the seating portion 1 rotates in the circumferential direction in a state of being tilted downward in the forward direction. Therefore, when the user performs the twist exercise with the force applied to the waist as described above, the user must always apply the force to the legs to support the weight of the user during the twist exercise. Therefore, the user's waist and legs are trained at the same time, which is effective for waist diet and leg strength training.

Therefore, the chair-type exercise device of the present invention is effective for waist diet and leg strength training, and can affordably perform these waist diet and leg strength training at home or office.

1 Seating part 2 Bottom seat part 3 Rotating shaft 3a Upper shaft part 3b Lower shaft part 3d Support 4 Load mechanism 13 Tilt mechanism 41 Weight

Claims (5)

It has a seating part, a bottom seat part, and a rotating shaft.
The upper shaft portion of the rotating shaft is pivotally supported by the bearing installed in the seating portion.
The lower shaft portion of the rotating shaft is pivotally supported by the bearing installed on the bottom seat portion.
A chair-type exercise device characterized in that the rotating shaft has a vertical axis in which an upper shaft portion and a lower shaft portion are different from each other, and a load mechanism for applying a load due to a moment of inertia is provided on the rotating shaft. The chair-type exercise device according to claim 1, wherein the seating portion is provided with a tilting mechanism so that the seating portion can be tilted downward. The load mechanism according to claim 1 or 2, wherein the load mechanism is based on a moment of inertia given to the rotating shaft when a support projecting outward from the axis toward the lower shaft portion of the rotating shaft rotates. Chair type exercise equipment. The chair-type exercise device according to claim 3, wherein a weight is attached to the support. The chair-type exercise device according to claim 4, wherein a plurality of the weights are selected and detachably attached to the support.

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