JP2000316670A - Chair for stretching - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a chair for stretching by which any body can easily and safely perform a stretching, and which can be used as a normal chair as well. SOLUTION: A back rest section 1 is height-adjustably provided to a seat plate section 3, and the back rest section 1 is formed in a manner to be slightly tiltable in the longitudinal and lateral directions through an elastic member of a low elastic property, and also, at right and left locations on the upper end of the back rest section 1, a connecting utensil 11 to which a stretch assisting bar 9 is attached, is respectively provided. Then, respective right and left stretch assisting bars 9 are constituted by connecting two supplemental bars of a first supplemental bar and a second supplemental bar with a connecting utensil 10 respectively, and both of the first supplemental bar and the second supplemental bar can be attached in required directions, and both supplemental bars are length-adjustably provided in a manner to correspond with the arm length of a user.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stretching chair that can be easily and safely stretched at home and can be used as a normal chair.

[0002]

2. Description of the Related Art Stretching exercises, which belong to aerobic exercises, are known as flexible exercises that can be easily performed. The purpose of the exercise is to relax muscle tension.
It relaxes the body, prevents muscle inflammation and rupture, expands the range of motion of joints and muscles, removes muscle inflammation and increases the resilience of soft tissue wounds. Stretching includes dynamic stretching (active stretching) and static stretching (static stretching) .Dynamic stretching is performed by pulling and bouncing movements, and it is a method of stretching muscles by its recoil, There are a number of exercise devices on the market that allow you to do stretching.However, exercise with these devices can cause strong tension in the muscles due to strong extension reflexes, which can cause damage to the muscles, tendons and joints. It is expensive, and after all, it often hurt each part and stop it, so it is not recommended as a stretching exercise at home.

[0003]

On the other hand, static stretching is carried out slowly and quietly, and ideally 30 to 6 times.
It is held for 0 seconds, and the contraction due to the extension reflection is extremely weak due to such movement, and if this state is maintained, the contraction due to the extension reflection is sufficiently strong to cause the reverse extension reflection, This is a signal to relax the muscles, and also to perform safe stretching. Thus, static stretching can be said to be an optimal exercise that can achieve the original purpose of stretching, and the static stretching is performed by an active method and a passive method. Active stretching relies on the strength of certain muscle groups to achieve a stretching position, for example, the arm must be stretched up or back to stretch the shoulders, which causes the shoulders to stretch. The muscles in the back and upper back will contract. Active stretching is a method of stretching certain muscles and contracting antagonistic muscles to relax.
Although the stretching is very important and necessary, it can be said that the technique of stretching only by one's own movement is difficult and requires sufficient knowledge and experience. In addition, passive stretching uses external forces such as pulling devices and partners to relax all muscles around the joints involved in stretching, so that tension is lower than others. It is the least effective way to increase flexibility. However, the muscles and tendons tend to stretch beyond the limits of extension, and are often injured when using the device incorrectly or carelessly.

The present invention has been made in view of the above points, and is intended to enable anybody to easily and safely perform static stretching (especially the upper body) which can provide excellent effects. Is a device that promotes intermediate stretching between active stretching and passive stretching. Basically, a certain muscle is stretched and relaxed by one's own movement, but an auxiliary device is used to obtain sufficient stretching. It is an object of the present invention to provide a stretching chair that is devised so that safe stretching can be performed without applying any other extra force.

[0005]

According to the present invention, there is provided a stretch chair according to the present invention, in which a height of a backrest portion is freely adjustable with respect to a seat plate portion, and an elastic member having low elasticity is used. The backrest is formed to the extent that it can be tilted slightly forward, backward, left and right, and there is a connecting device attached with a stretch assist bar at the upper right and left positions of the backrest, and the connecting device requires a stretch assist bar. The stretch auxiliary rod has a structure in which at least two auxiliary rods, that is, a first auxiliary rod and a second auxiliary rod, are connected to each other on both the right and left sides by a connecting tool. The connecting tool has a structure that can be connected and fixed in all directions so that the second auxiliary rod can be mounted in a required direction with respect to the first auxiliary rod. Adjustable length to adapt to arm length It is characterized in that the digits.

[0006]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view showing an embodiment of the present invention, FIG. 2 is a side view showing a state in which a stretch assisting rod is set for raising an arm, and FIG. 3 is a view showing setting of a stretch assisting rod for trunk flexion. It is a front view showing the state where it did.

In the drawings, reference numeral 1 denotes a backrest, which is a main part of the present invention, and is attached to a seat plate 3 having a leg 5 at a lower portion by a support rod 2.
The lower side of the support rod 2 is inserted into the fitting portion 3a of the seat plate portion 3 and can be tightened and fixed by the tightening screw 3b at the location.
The support rod 2 is provided with several stages of fixing grooves (not shown) so that the height of the backrest 1 can be adjusted by tightening and fixing at each stage. Also, the backrest 1 is formed so that the backrest 1 is slightly inclined back and forth and left and right by applying a force (for example, weight) to the support rod 2 with an elastic member 4 having a relatively low elasticity, that is, a tough spring or rubber. It shall be. still,
Although not illustrated, a normal backrest (with a support rod) is separately prepared in advance, and is replaced with the backrest part 1, that is, the support rod of the normal backrest is inserted into the fitting part 3a and the tightening screw 3b is used. If it can be used as a normal chair by fixing it, usability will be further enhanced. Reference numeral 6 denotes a band for fixing the legs. The stretching chair is mainly used for the upper body from the waist, but by stiffening the thighs when sitting, a sufficient exercise effect of the upper body can be obtained. Of course, in this state, it is also possible to perform an exercise to develop the quadriceps femoris (the front position of the thigh) and the like by extending the knee.

The backrest 1 is composed of a bottom rod 1a, a right and left vertical rod 1b, and an upper rod 1c connected to the support rod 2.
A and a plurality of adjusting screw insertion holes 7 are formed in each of the left and right vertical rods 1b, and a fixed screw 8 is inserted by aligning the screw insertion holes of the required bottom rod 1a with the screw insertion holes of the left and right vertical rods 1b. , The height and the width can be freely adjusted according to the user's physique. The upper rod 1c is composed of two upper rods projecting inward from the upper ends of the left and right vertical rods 1b, and has a structure in which at least one of the upper rods is hollow and the other upper rod is inserted into the hollow portion. No matter which adjustment screw insertion hole 7 is fixed, one upper rod 1c
Is formed.

Reference numeral 9 denotes a pair of left and right stretching auxiliary rods, which are composed of a first auxiliary rod 9a and a second auxiliary rod 9b, which are connected by a connector 10. The first auxiliary rod 9a is connected to the left and right vertical rods 1b. By attaching each with the connection tool 11 provided at the upper end,
The stretch assist rod 9 is attached to the backrest 1. The connecting tool 11 can be connected and fixed in all directions so that the stretching auxiliary rod 9 can be mounted in a required direction. For example, 9 to 13 mounting holes (points) into which the tip of the first auxiliary rod 1a can be inserted are provided. Symmetrically, the same number is also provided on the opposite side), an auxiliary rod is inserted into a mounting hole at which a required mounting angle is obtained, and the auxiliary rod is fixed and connected by a locking pin 11a. In addition, the connecting tool 11 can be rotatably held in an arbitrary direction with a bearing or the like inside, and the tip of the auxiliary rod can be attached and fixed to the connecting tool, and the connecting tool itself is stopped and fixed by a stopper or the like. The structure is such that the stretch assist rod 9 can be attached to the backrest 1 at a required angle, such as right above, diagonally above, diagonally below, diagonally rear below, diagonally rear above, or directly behind. As long as they are available. Not to be. The connecting tool 10 which is provided at the rear end of the first auxiliary rod and connects the second auxiliary rod also has a structure which can be connected and fixed in all directions so that the second auxiliary rod can be connected in a required direction. The same method as described above is conceivable, but this is not particularly limited.

The reason why the stretching auxiliary rod 9 is divided into two parts is that it can cope with extension and bending at the elbow of the arm, and each of the auxiliary rods 9a and 9b has a length corresponding to the physique. Adjustment is possible, the connecting tool 10 and the connecting tool 1
It can be adjusted by the insertion length of the rod 1 or a double tube structure in which the length of the rod itself can be expanded and contracted, and it is completely arbitrary. Reference numeral 12 denotes a grip portion, and left and right stretch assisting bars 9
After the arm is set at a predetermined angle, the arm is stretched (bent in some cases) along the arm. By gripping the grip 12, the stretching exercise can be performed more easily.

In the stretching chair constructed as described above, for example, the stretching of the arm lift can be facilitated by setting the stretching assist rod 9 in a state of being straightened upward (FIG. 2). Can relax and relax the trapezius, deltoid, triceps, etc. Of course, the stretching is basically performed according to one's own posture, but the effect like passive stretching is exerted in the same way as applying other forces by this stretching chair, that is, the stretching around the joints etc. accompanying stretching. It is possible to relax all muscles as a whole, and it is possible to do more active stretching without high knowledge and skills, and not to apply excessive force like conventional machinery and equipment Therefore, it can be said that no injuries occur, anyone can easily carry out the treatment at home, and a safe and sufficient stretching effect can be obtained. Also, as shown in FIG.
If you set the left stretch assist stick 9 right above and set the right stretch assist stick 9 diagonally downward,
It is effective for stretching of the abdominal muscle group and the like.
When b is set to be bent inward,
Suitable for stretching of the pectoralis major, small pectoralis, biceps, etc. In addition to this, many other types of muscles are used to relax and relax, remove inflammation of the muscle, or prevent inflammation or tearing There are shapes of auxiliary rods for guiding the posture (direction, angle, bending angle at the position of the connector, etc.), and in any case, this stretch chair can appropriately assist extremely important static stretching.

[0013]

As described above, according to the present invention, it is possible to perform an effective exercise of stretching by one's own posture, instead of the exercise relying on exercise equipment as in the prior art. Posture 30-60
It is surprisingly difficult to keep it still for a second, but the product of the present invention can assist in maintaining its posture, and at least a little more force than others (such as tilting and rebounding the backrest, With the assistance rod forcing a forced posture), it is possible to perform more effective static stretching, and to achieve enormous effects that could not be obtained with conventional devices at all, and its commercial value is extremely high I can say.

[Brief description of the drawings]

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

FIG. 2 is a schematic side view showing a state in which a stretch assisting rod is set for arm lifting.

FIG. 3 is a schematic front view showing a state in which a stretching assist rod is set for trunk side flexion.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Back part 3 Seat board 9 Stretch auxiliary rod 10 Connecting tool 11 Connecting tool

Claims (1)

[Claims] 1. A backrest portion is provided so as to be freely adjustable in height with respect to a seat plate portion, and is formed such that the backrest portion can be slightly inclined forward, backward, left and right through an elastic member having low elasticity.
In addition, a connecting device for attaching a stretch assisting bar is provided at each of the upper left and right positions of the backrest, and the connecting device can be connected and fixed in all directions so that the stretching assisting bar can be attached in a required direction. And the stretch assist rods are at least two of the first auxiliary rod and the second auxiliary rod on both the left and right sides.
The auxiliary rods are connected by a connecting tool, and the connecting tool has a structure capable of being connected and fixed in all directions so that the second auxiliary rod can be attached to the first auxiliary rod in a required direction. A stretching chair characterized in that both auxiliary bars are provided so as to be adjustable in length so as to adapt to the arm length of the user.