JP2889487B2 - Stretching machine - Google Patents

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 lumbar back and neck muscle tension and simultaneously stretching the lumbar and cervical vertebrae.

[0002]

2. Description of the Related Art A stretching machine is a device that stretches the lumbar spine and cervical spine by stimulating the muscles of the lumbar back and neck. One such machine is disclosed in U.S. Pat. No. 4,583,731.
No. provides spinal exercise equipment. In this device, a table is rotatably supported between a pair of left and right frames, and the table is provided with a headrest that adjusts the head height and supports the head so that it can swing back and forth. When the back and neck muscles are stretched so that the feet are supported on the floor and the head is moved downward, the headrest rotates downward while resisting the force of the biased spring. is there.

[0003]

However, since a person lies on the table and exercises the lumbar back and neck muscles, the back comes into contact with the upper surface of the table. There is a surface on which sliding resistance is generated and slips hardly, so that it is difficult to perform an effective stretching exercise because it cannot move smoothly.

Accordingly, the present invention provides a stretching machine that enables even a beginner or the like to immediately and easily perform an effective stretching exercise.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, according to the present invention, a waist abutment is placed and fixed on an inclined frame having a predetermined length, and is rotatably arranged above the waist abutment. A large roller that spans the width of the back and a small roller that touches the back
A backrest consisting of a plurality of rollers with rollers is provided, and a main handle having a grip located near both left and right sides of the backrest is provided on the frame, and a plurality of rollers are provided near the backrest on the top of the frame. The headrests, which are rotatably arranged in parallel, are urged and pivotally supported in the front-rear direction, and the auxiliary handle with grips located near the upper left and right sides of the headless can be attached to and detached from the frame. A stretch machine characterized by being provided.

[0006]

[Action] Place your hips on your hips, place your feet on the floor and lie on your back,
Rest your back on the rollers, rest your head on the headrest, and grip the handle of one of the main and
If you hold your hand and warp your upper body, the rollers will rotate to facilitate the sliding movement of your back and head, and the headrest will swing backwards against the biasing force, and when you release your upper body, the headrest will It returns to the original state by the urging force. Repeat this to do stretching exercises.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment 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 predetermined length and a substantially H-shaped side surface and a substantially H-shaped plane, and both ends have T-shaped stable legs 2, 2 mounted on a floor surface or the like. It is connected perpendicular to the mold. The leg 2 is provided with a rubber cap 2a for preventing slippage.

The frame 1 comprises a frame body 1a and a leg 1b.
The slider 3 is mounted and fixed on the inclined upper surface of the frame main body 1a so as to be movable, and the waist rest 4 is fixed. The frame 1 is made of a square material having a rectangular cross section, and the slider 3 is made of a member having a U-shaped cross section, but is not limited thereto.

The slider 3 straddles the frame body 1a,
An elongated hole 3a is formed in one side surface thereof, and a tightening screw 5 having a knob passes through the elongated hole 3a and is screwed to the frame main body 1a. By turning the knob and turning the tightening screw, the slider 3 is tightened to the frame body 1a at the base of the knob and the position of the slider 3 is fixed by the friction, or the tightening is released and the slider 3 is moved within the range of the elongated hole 3a. The position of No. 3 can be appropriately moved and adjusted.

A support 6 is connected to an upper portion of the slider 3, and the support 6 is formed with a back support 7 composed of a plurality of rollers. That is, a plurality of shafts 8 are protruded from the side surface in a cross-sectional direction at a predetermined interval on the left and right sides of the support body 6 at the upper part of the support body 6 having a U-shaped cross section or the like disposed upward. Long rollers 7a and short rollers 7b, which are made of an elastic material such as rubber, are alternately provided at both ends of the roller 8 and are rotatably supported by appropriately stopping.

[0011] As shown in FIG.
a, 7b, the support body 6 is located below the back muscles so as not to hit the back muscles when the person is supine, as shown in FIG.
Is a small roller that contacts the vicinity of the spine, and the roller 7a is a large roller that extends across the back. The number of the rollers 7a and the number of the rollers 7a are required in the longitudinal direction of the frame 1 and are mounted so that the entire upper surface is slightly convex.

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

One end of a tension spring 13 is locked in the frame main body 1a, the other end is connected to a plate 14, and the plate 14 is locked to the lever 12 via a lever 15. 15a and 15b are connecting shafts. The spring 13 may be a spring unit housed in a tube.

The headrest 9 is attached to the swinging rod 12 by the support 1.
6 and a plurality of rollers 9a, 9b, 9c
Are arranged such that the entire upper surface is concave. That is, a plurality of shafts 17 are protruded from the upper portion of the support 16 to both left and right sides of the support 16 at a certain interval in the cross-sectional direction, and the both ends of the shaft 17 are rollers 9a made of an elastic material such as rubber. To c are properly stopped and rotatably mounted on the shaft. The rollers 9a to 9c consist of three large, medium and small rollers.
The large roller 9a contacts near the neck of the person, and the middle roller 9b and the small roller 9c contact the back of the head.

Further, a stopper 19 for restricting an angle at which the swinging rod 12 inclines backward is screw-mounted on the leg 1b. The stopper 19 can be screwed or unscrewed to adjust its protruding height. A buffer rod 20 made of resin is fitted into an abutting portion between the bracket 10 and the swinging rod 12. The buffer rod 27 is provided to prevent shock absorption and metal noise when the bracket 10 and the swinging rod 12 come into contact with each other.

[0016] It should be noted that, in frame 1 Omofukuha bundles 21,
22 are provided to protrude on both left and right sides. That is, the main handle 21 is formed of a substantially U-shaped lever body on the side of the slider 3 below the frame body 1a via the bracket 23, and the sub handle 22 is mounted on the leg 1b by the bracket. It consists of a substantially square-shaped lever body whose upper part is open via 24. Grip 25 is provided at both ends of main and sub handles 21 and 22.
Are attached. The main handle 21 is directed toward the waist rest 4, and the sub handle 22 is directed toward the swinging rod 12.
Each is inclined.

Next, FIGS. 6 to 8 show a construction characterized by the convenience of disassembling each part of the above embodiment to make it compact and not taking up space for transportation or storage.

That is, FIG. 6 shows a structure in which the frame 1 can be disassembled. The frame main body 1a is divided into two parts near the waist portion 4, and these two parts are connected to each other. A fitting member 30 having a U-shaped cross section is protruded at a predetermined length and fixed by welding or the like.
A screw hole 31 is provided in each of the frame main body 1a and the frame body 1a to be fitted therein. Therefore, the other frame main body 1 a is fitted to the fitting member 30, and the screw 32 is
Can be screwed to connect the frame bodies 1a together, or the screws 32 can be loosened and pulled out to divide the frame body 1a into two parts.

FIG. 7 shows that the auxiliary handle 22 is detachable from the frame 1. A cylindrical body 40 of the same diameter and the same size is fixed to the left and right sides of the leg 1b by welding or the like, while the auxiliary handle 22 is attached to the bottom of the auxiliary handle 22. A pair of projections 41 are connected, and this projection 4
1 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 circular shapes. Accordingly, the protrusion 41 of the auxiliary handle 22 is inserted into the cylindrical body 40 a sub handle 22 mounted on the frame 1, the protrusion 41
Can be removed from the frame 1 by pulling it out of the cylindrical body 40.

FIG. 8 shows a structure in which the headrest 9 can be removed. A fitting member 50 having a U-shaped cross section and a predetermined length is connected to a bracket 10 fixed to the frame body 1a via a shaft 11, and One end of a lever 15 for locking 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 freely is formed at the lower end of the swinging rod 12 so that it can be fitted to and removed from the fitting member 50 and can be connected by a screw 52. Therefore, the headrest 9 is connected to the swinging rod 12 and the fitting member 50.
And the frame 1
Can be assembled or separated.

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

Next, the operation of the above embodiment will be described.
As shown in FIG. 5, a person 20 rests on the waist abutment 4 and fixes the lower body on the floor with the feet.
b) and rests his head on the rollers 9a to 9c of the headrest 9, grasps the preferred one of the main and sub handles 21, 22 and straightens the back so that the upper body is warped backward.

When the foot is hung on the stable leg 2 in order to stretch the back, the rollers 7a and 7b rotate and the back slides easily, and the head receives the rollers 9a to 9c while allowing some sliding. The headrest 9 is bent and stretched and pushes the headrest 9 backward, so that the swinging rod 12
Around the center.

On the other hand, since a force for extending the spring 13 is applied to the swinging rod 12, the spring force acts on the person 60. When the swinging rod 12 largely falls backward, it comes into contact with the stopper 19 and the tilting of the headrest 9 stops.

Therefore, the above-described exercise is repeated to perform a stretching exercise, thereby relaxing the muscles of the lumbar back and neck, and at the same time, stretching the lumbar and cervical vertebrae.

[0026]

According to the present invention described above, the back,
Since the shoulder and the neck are supported by rollers and the rollers can be rotated, the sliding movement of the person can be facilitated, so that even a beginner can effectively perform the stretching exercise. Also, the main handle located on the left and right sides of the backrest and the auxiliary handle located near the left and right sides of the headrest are provided, so that you can exercise by gripping one of the preferred grips, Easy to move and effective exercise. In addition, the rollers are large
Rollers and small rollers that abut in the vicinity of the back muscles are alternately arranged, and the supporter protrudes higher than that, so that the human body is uneven without contacting the spine with the roller or support. It has the effect of relaxing muscle tension by supporting it with
Further, since the slider can be moved and adjusted, the position of the backrest can be changed due to the difference in height, so that effective exercise can be performed.

[Brief description of the drawings]

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

FIG. 2 is a side view of FIG. 1;

FIG. 3 is a front view of FIG. 1;

FIG. 4 is a partially enlarged view.

FIG. 5 is an explanatory diagram of an operation.

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 ... Waist contact part 6 ... Support body 7a, 7b ... Roller 8 ... Shaft 9 ... Headrest 9a-9c ... Roller 10 ... Bracket 12 ... Swinging rod 13 ... Spring 19 ... Stopper 21 , 22 ... handle

Claims (4)

(57) [Claims] 1. A waist abutment portion is mounted and fixed on an inclined frame of a predetermined length, and a large roller spanning a back width rotatably arranged above the waist abutment portion and a small roller abutting near a back muscle.
A backrest consisting of a plurality of rollers with rollers is provided, and a main handle having grips located near both left and right sides of the backrest is provided on the frame, and a plurality of rollers are provided at the top of the frame near the backrest. The headrests, which are rotatably arranged in parallel, are urged and pivotally supported in the front-rear direction, and the auxiliary handle with grips located near the upper left and right sides of the headless can be attached to and detached from the frame. A stretch machine characterized by being provided. 2. A frame-side roller connects a support to an upper portion of a slider mounted and fixed to the frame, is supported on both left and right sides of the support, and is disposed above the support. The stretch machine according to claim 1, wherein: 3. The stretching machine according to claim 2, wherein the slider is movable relative to the frame. 4. The frame-side roller is characterized in that a short roller contacting near the spine of a person lying on the frame and a long roller contacting the other back are alternately arranged in parallel. Item 3. The stretch machine according to item 1 or 2.