JPH07250920A - Stretching machine - Google Patents

Abstract

PURPOSE:To provide a stretching machine which enables even a beginner, etc., to immediately and easily make effective stretching exercise. CONSTITUTION:A waist contact part 4 is horizontally fixed to an inclined frame 1 of a prescribed length and a back contact part 7 freely rotatably paralleled with plural rollers 7a, 7b is disposed above this waist part 4. A head rest 9 freely rotatably paralleled with plural rollers 9a to 9c is pivotally supported near the uppermost part of the frame 1 near this back contact part 7 tiltably by pulling and energizing the head rest 9 toward the frame 1 side by means of a spring. The user, thereupon, places his waist on the waist contact part 4, lies down supine by placing the legs on a floor surface, places the back on the back contact part 7 and places the head on the head rest 9. The rollers 7a, 7b, 9a to 9c rotate to facilitate the smooth movement of the upper half body when the user straightens the upper half body. The head rest 9 turns toward the rear side by overcoming the energizing force thereof. The stretching exercise, etc., are carried out by repeating such motion.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stretching machine for relieving the tension of muscles of the back and neck and simultaneously stretching the lumbar and cervical vertebrae.

[0002]

2. Description of the Related Art A stretch machine is a device for stimulating the muscles of the back and neck of the waist to stretch the lumbar and cervical vertebrae. An example of this type of machine is U.S. Pat. No. 4,583,731.
The spinal exercise device is provided in the issue. In this device, a table is rotatably supported between a pair of left and right frames, and a headrest is mounted on the table so that the head can be adjusted in height and swingable in the front-back direction. However, if you extend the muscles of the lower back and neck to support your feet on the floor and move your head downward, the headrest will rotate downward while resisting the force of the biased spring. is there.

[0003]

However, since a person is supine on the table and exercises the muscles of the waist and the back of the neck, the back comes into contact with the top surface of the table. Therefore, when the back is extended, the back and the table are stretched. There is a surface between them and the sliding resistance, which makes it difficult to slip, and therefore it is difficult to perform an effective stretching exercise because it cannot move smoothly.

Therefore, the present invention provides a stretch machine in which even a beginner or the like can easily and easily carry out an effective stretch exercise.

[0005]

In order to achieve the above object, the present invention mounts and fixes a waist rest on an inclined frame having a predetermined length, and is rotatably juxtaposed above the waist rest. A backrest consisting of a plurality of rollers is provided, and a headrest composed of a plurality of rollers rotatably juxtaposed to the top of the frame near the backrest is energized and pivotable in the front-back direction. The stretch machine to support it was constructed.

[0006]

[Function] Place your hips on your lower back, lay your feet on the floor, and lie down,
When you place your back on the roller and place your head on the headrest to bend your upper body, the roller rotates to facilitate the sliding movement of your back and head, and the headrest resists its biasing force to the rear side. When it swings and the power of the upper half of the body is removed, the headrest returns to its original state by the urging force. Stretching exercise is performed by repeating this.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 to 3, the frame 1 has a side face substantially V-shape and a plane substantially H-shape with a predetermined length, and T-shaped stabilizer legs 2 and 2 placed on the floor surface at both ends are T-shaped. It is connected orthogonally to the mold. A rubber cap 2a for slip prevention is attached to the leg portion 2.

The frame 1 includes a frame body 1a and leg portions 1b.
The slider 3 is mounted and fixed on the upper surface of the tilted frame body 1a so that the slider 3 can be moved and adjusted, and the waist rest 4 is fixed. The frame 1 is made of square material having a square cross section, and the slider 3 is made of a member having a square cross section, but is not limited thereto.

The slider 3 straddles the frame body 1a,
A long hole 3a is formed in one side surface thereof, and a tightening screw 5 having a knob penetrates the long hole 3a and is screwed into the frame body 1a. Rotate the knob to turn the tightening screw, tighten the slider 3 to the frame body 1a at the base of the knob, and fix the position of the slider 3 by the friction, or release the tightening to move the slider within the range of the long hole 3a. The position of 3 can be appropriately moved and adjusted.

A support body 6 is connected to the upper portion of the slider 3, and a back support portion 7 composed of a plurality of rollers is formed on the support body 6. That is, a plurality of shafts 8 are protruded to the left and right sides of the support body 6 at a constant interval from the side surface in the cross-sectional direction above the support body 6 having a U-shaped cross section disposed upward. Long rollers 7a and short rollers 7b each made of an elastic material such as rubber are alternately and alternately supported at both ends of 8 so as to be appropriately prevented from slipping off.

As shown in FIG. 4, the support 6 is a roller 7
When the person is supine as shown in FIG. 5, the support body 6 is located below the back muscles so as not to hit the back muscles.
Is a small roller that abuts near the spine, and the roller 7a is a large roller that covers the width of the back. The number of the rollers 7a and the number of the rollers 7a are the necessary number in the longitudinal direction of the frame 1, and they are attached so that the entire upper surface is slightly convex.

A headrest 9 is provided above the slider 3 and on the top of the frame 1 so as to be swingable with a spring force. That is, the bracket 1 is attached to the end of the frame body 1a.
0 is fixed, and the lower end of the swing rod 12 is rotatably connected to the bracket 10 via a shaft 11. The oscillating rod 12 is a square bar having a predetermined length and a square cross section.

Then, one end of the tension spring 13 is locked in the frame body 1a, the other end is connected to the plate 14, and the plate 14 is locked to the lever 12 with the lever 15 interposed. 15a and 15b are connecting shafts. The spring 13 may be a spring unit housed in a tubular body.

The headrest 9 includes a swing rod 12 and a support member 1.
6 are connected and a plurality of rollers 9a, 9b, 9c are provided on the upper part thereof.
Are arranged so that the entire top surface is concave. That is, a plurality of shafts 17 are projected from the upper portion of the support body 16 at regular intervals in the cross-sectional direction to the left and right sides of the support body 16, and rollers 9a made of an elastic body such as rubber are provided at both ends of the shaft 17. ˜c are properly prevented from coming off and are rotatably attached to the shaft. The rollers 9a to 9c are composed of three large, medium and small rollers,
The large roller 9a comes into contact with the vicinity of the neck of a person, and the middle roller 9b and the small roller 9c come into contact with the back of the head.

Further, a stopper 19 for restricting an angle at which the swing rod 12 is tilted rearward is screwed on the leg portion 1b. The protrusion height can be adjusted by screwing or unscrewing the stopper 19. A buffer rod 20 made of resin is fitted and inserted in an abutting portion between the bracket 10 and the swing rod 12. The buffer rod 27 is provided to prevent shock absorption and metallic noise when the bracket 10 and the swing rod 12 collide with each other.

The frame 1 has handles 21 and 22.
Are provided so as to project to the left and right sides. That is, the handle 21 is composed of a substantially U-shaped lever body on the lower side of the frame body 1a via the bracket 23 on the side portion of the slider 3, and the handle 22 is attached to the leg portion 1b by the bracket 24.
It consists of a lever-shaped lever with the top open through. Grips 25 are attached to both ends of the handles 21 and 22, respectively. The handle 21 is inclined toward the waist rest 4, and the handle 22 is inclined toward the swing rod 12 side.

Next, FIGS. 6 to 8 show a constitution characterized by the fact that each part of the above-mentioned embodiment is disassembled into a compact size and that it is convenient in that it does not take up space during transportation or storage.

That is, FIG. 6 shows a structure in which the frame 1 can be disassembled, and the frame body 1a is divided into two parts in the vicinity of the waist support part 4 and one side of the frame body 1a is connected to connect them. A fitting member 30 having a U-shaped cross section is protruded to a predetermined length and fixed by welding or the like.
A screw hole 31 is provided in each of the frame main body 1a on the side of fitting into this. Therefore, the other frame body 1a is fitted into the fitting member 30, and the screw 32 is inserted into the screw hole 31.
The frame body 1a can be divided into two by screwing in to connect the frame bodies 1a to each other, or by loosening and removing the screws 32.

FIG. 7 shows a structure in which the handle 22 can be removed from the frame 1. While the tubular bodies 40 having the same diameter and the same size are fixed to the left and right sides of the leg portion 1b by welding or the like, the handle 22
A pair of protrusions 41 are connected to the bottom of the cylinder so that the protrusions 41 can be inserted into and removed from the cylindrical body 40. The cross sections of the cylindrical body 40 and the protrusion 41 are not limited to the circular shape. Therefore, the protrusion portion 41 of the handle 22 is inserted into the tubular body 40, the handle 22 is attached to the frame 1, and the protrusion portion 41 is inserted into the tubular body 4.
It can be removed from frame 1 by pulling it out from 0.

FIG. 8 shows a structure in which the headrest 9 can be removed. A bracket 10 fixed to the frame body 1a is connected with a fitting member 50 having a U-shaped cross section with a predetermined length via a shaft 11. One end of a lever 15 that locks the spring 13 to the fitting member 50 is connected by a shaft 15b. On the other hand, a slit 51 for allowing the lever 15 to move is formed at the lower end of the swing rod 12 so that it can be fitted into and removed from the fitting member 50 and can be connected by a screw 52. Therefore, the headrest 9 has the rocking rod 12 and the fitting member 50.
Frame 1 by fitting with and detaching with screws 52
Can be assembled or separated.

Thus, the stretch machine of the present invention can be divided into three parts, the frame 1a divided into two and the handle 22. Therefore, it can be compactly stored in the box in the state of being divided into three.

Next, the operation of the above embodiment will be described. As shown in FIG. 5, a person 60 puts his or her hips on the waist rest 4, fixes the lower half of the body on the floor, and rolls the back rest 7. 7a, 7
Supine on b and place the head on the rollers 9a to 9c of the headrest 9, hold one of the handles 21 and 22 that is preferred, and stretch the back muscles so that the upper half of the body is bent backward.

When the foot is put on the stable leg 2 in order to stretch the back muscles, the rollers 7a and 7b rotate and slide easily on the back, and the head receives the rollers 9a to 9c while allowing them to slide to some extent. Then, the bending force is applied to the headrest 9 to push the headrest 9 rearward, so that the rocking rod 12 moves toward the shaft 11.
Rotate backward around.

On the other hand, since a force for stretching the spring 13 is applied to the swing rod 12, the spring force acts on the person 60. When the rocking rod 12 largely falls rearward, it abuts on the stopper 19 and the tilting of the headrest 9 is stopped.

Therefore, it is possible to repeat the above-mentioned exercises to perform stretching exercises to relieve the tension of the muscles of the back and neck of the waist, and at the same time to stretch the lumbar spine and cervical spine.

[0026]

According to the present invention described above, the back,
Since the shoulder portion and the neck portion are respectively supported by the rollers and the rollers can be rotated, the sliding movement of the person can be facilitated, and therefore, even the beginner can effectively perform the stretching exercise.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a side view of FIG.

3 is a front view of FIG.

[Fig. 4] Partly enlarged view

[Fig. 5] An explanatory view of action

FIG. 6 is a perspective view showing a partially modified example.

FIG. 7 is a perspective view showing a partially modified example.

FIG. 8 is a perspective view showing a partially modified example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Frame 1a ... Frame main body 3 ... Slider 4 ... Lumbar support part 6 ... Support body 7a, 7b ... Roller 8 ... Shaft 9 ... Headrest 9a-9c ... Roller 10 ... Bracket 12 ... Oscillating rod 13 ... Spring 19 ... Stopper 21 , 22 ... Handle

Claims (4)

[Claims] 1. A backrest which comprises a plurality of rollers which are rotatably arranged in parallel above the waist rest is mounted and fixed on an inclined frame having a predetermined length, and the back rest is provided. A stretch machine characterized in that a headrest composed of a plurality of rollers rotatably juxtaposed to each other is biased to the uppermost part of the frame in the vicinity, and is pivotally supported so as to be swingable in the front-rear direction. 2. A roller on the frame side connects a support to an upper part of a slider mounted and fixed on the frame, is axially supported on both left and right sides of the support, and is arranged above the support. The stretch machine according to claim 1, wherein the stretch machine is a stretch machine. 3. The stretch machine according to claim 2, wherein the slider is movable and adjustable with respect to the frame. 4. The roller on the frame side is characterized in that a short length member that abuts on the spine of a supine person and a long length member that abuts on the other back are alternately arranged in parallel. The stretch machine according to Item 1 or 2.