JPH11206916A - Back stretcher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a back stretcher which facilitate stretching of a back muscle simply in a standing posture while allowing a user himself to have an exercise for stretching the back muscle under an arbitrary load by properly regulating the degree of warping of his body. SOLUTION: A longitudinal stretch bed 4 with the front formed into a convex curved surface is rotatably supported between erected struts 2 about the horizontal transverse axis center X while hand rails 5 are curved extending downward to lower parts thereof from the upper parts of the struts 2. A user leaning backward against the front of the stretch bed 4 changes a gripping position of the hand rails 5 to regulate the amount of backward rotation of the stretch bed 4 thereby allowing the user himself to regulate the degree of warping optionally.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a back stretcher used for stretching the back muscles in preparation exercises and maintenance exercises when performing various sports.

[0002]

2. Description of the Related Art As a stretcher used for stretching a back muscle, a so-called curl stretch bench placed on the floor as shown in FIG. 6 is conventionally known.
This curl stretch bench is provided with grips 22 on the left and right sides of a stretch bed 21 bent upward and convexly, and is provided with a footrest 23 at an end portion. By stretching the upper body greatly on the bed 21 while holding and supporting the body, it is possible to perform stretching exercises and strengthening exercises for the back muscles, abdominal muscles, legs and the like.

[0003]

Since the above-mentioned curl stretch bench is used by the user lying on his back,
It is unsuitable for outdoor installation and use, and because the posture of the bed is fixed and the degree of warping of the body can not be adjusted, and because a relatively heavy exercise is forced However, it is not always easy to use for elderly people or users with low physical strength.

[0004] The present invention has been made in view of such a situation, and it is possible to easily extend the spine in a standing posture, and to adjust the degree of warping of the body appropriately by the user himself. It is an object of the present invention to provide a back stretcher capable of performing a back stretching exercise with an arbitrary load.

[0005]

The present invention has the following configuration to achieve the above object. The back stretcher according to the first aspect of the present invention is configured such that a vertically elongated stretch bed having a front surface formed into a convex curved surface is rotatably supported on an upright frame around a horizontal horizontal axis and from the top of the frame. A curved handrail is provided at the lower rear side.

A back stretcher according to a second aspect of the present invention is the back stretcher according to the first aspect, wherein the back stretcher is constituted by a pair of right and left columns on which the frame is erected, and the stretch bed is rotatably supported between the columns. And the handrail is extended from the upper part of each of the right and left columns.

A back stretcher according to a third aspect of the present invention is the back stretcher according to the second aspect, wherein the downward extension of the handrail is connected to a floor surface.

A back stretcher according to a fourth aspect of the present invention is the back stretcher according to any one of the first to third aspects, wherein the stretch bed is in a range from a vertical position to a posture rotated from a rearward substantially horizontal position. The rotation range is regulated by the front and rear stoppers so as to allow the rotation only at.

A back stretcher according to a fifth aspect of the present invention is the back stretcher according to any one of the first to fourth aspects, wherein the stretch bed is rotated and biased to a vertical position in a free state. Movement return means.

A back stretcher according to a sixth aspect of the present invention is the back stretcher according to any one of the first to fifth aspects, wherein a footrest is provided on a front floor surface of the stretch bed.

[0011]

According to the first aspect of the present invention, the user stands rearward in front of the stretch bed, stretches his / her hand upward and backwards, grasps the handrail, and shifts the grasping position backward, so that the stretch bed can be moved. By pivoting backward, the user's body is bent along the front curved surface of the stretch bed, and the back is stretched. At this time, as the gripping position with respect to the handrail is moved backward, the amount of backward rotation of the stretch bed increases, and the body weight is further increased, acting on the stretch bed, and the action of stretching the back muscles gradually becomes stronger.

According to the second aspect of the present invention, the user standing backward in front of the stretch bed stretches his / her hands upward and rearward and grasps the handrail, so that not only the back stretching exercise but also the upper limb It can also be a stretching and strengthening exercise for the pectoral muscles.

According to the third aspect of the present invention, the handrail whose lower end is connected to the floor also functions as a reinforcing member for supporting the column.

According to the fourth aspect of the present invention, even if the stretch bed is pivoted backward at the maximum, it can be pivoted only to a substantially horizontal position by the rear stopper, so that the stretch bed reversely pivots backward with excessive force. There is no fear.
In addition, when the stretch bed is rotated backward and then returned, it is not rotated until it exceeds the vertical position due to the front stopper. There is no need to hit the user from behind.

According to the fifth aspect of the present invention, since the stretch bed in the free state is stably maintained in the vertical position, the stretch bed does not stop in the self-rotating position.
There is no need for the user to manually turn to the initial vertical position to make corrections.

According to the sixth aspect of the present invention, the back muscle can be stretched while fixing the toes, and the lower limbs can be stretched at the same time.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. As shown in the perspective view of FIG. 1 and the side view of FIG. 2, the back stretcher according to the present invention has a base 1 and a support 2 made of a square pipe material made of stainless steel or the like on the front left and right portions thereof. Frame 3 to be installed
A stretch bed 4 pivotally supported between the left and right supports 2 so as to be rotatable around a horizontal horizontal axis X, and a curved handrail 5 extending rearward and downward from the upper rear surface of each support 2. ing.

The stretch bed 4 is formed in a vertically long shape having a convex curved front surface, and is provided with a lightweight shape-retaining material 4b formed of a moderately cushioning styrene resin or the like on the front surface of the substrate 4a. Have been. The stretch bed 4 is rotatably supported by a support shaft 7 horizontally provided between the left and right supports 2 via a bearing bracket 6 provided on the back surface of the substrate 4a, and a weight 8 is provided near the lower end. In the free state, the stretch bed 4 is returned to a vertical position by its own weight and is rotated.

The handrail 5 is formed by bending a round pipe material such as stainless steel, and the upper half thereof is curved in a substantially arc shape having a center of curvature near the rotation axis X of the stretch bed 4. And the lower half is formed linearly,
The upper end is connected to the upper rear surface of the support 2, and the lower end of the handrail 5 is connected and fixed to the base 1, and the handrail 5 itself also functions as a reinforcing material for the support 2.

In the vicinity of the lower portions of the left and right columns 2, a front stopper 10 for preventing the stretch bed 4 from rotating further forward from the vertical position is installed. At the upper and lower intermediate portions, rear stoppers 11 are provided to stop and prevent the rearwardly rotating stretch bed 4 from rotating backward more than the substantially horizontal posture. The rotation range is restricted so that the can rotate only in a range from a vertical posture to a rearward substantially horizontal posture.

The back stretcher according to the present invention is configured as follows. First, as shown in FIG. 2, the user stands with the back resting on the stretch bed 4 in the vertical position, and holds both hands. Is lifted upward and backward, and the left and right handrails 5 are grasped, and as shown in FIG. 3, the grasping position of the handrail 5 is shifted rearward while the body is warped, so that the back can be stretched. At this time, the more the gripping position of the handrail 5 is shifted backward, the stronger the degree of body warping becomes. By adjusting the gripping position of the handrail 5, it is possible to arbitrarily adjust the appropriate degree of warping without difficulty. You can.

Even if the stretch bed 4 is pivoted backward and warps to the maximum, it can be pivoted only to a substantially horizontal position by the stopper 11.
There is no danger that the stretch bed 4 will pivot too far backward and the user will turn backward. Further, when returning from the warped state to the front, as described above, since the stretch bed 4 rotates only to the vertical position by the stopper 10, the stretch bed 4 further rotates in the return direction due to inertia, and the upper half of the bed. The phenomenon that the part jumps forward and turns and hits the user from the rear does not occur.

The present invention can be implemented in the following modes. (1) As shown in FIG. 4, if the footrest 12 is installed on the base 1 so as to be located in front of the stretch bed 4, it is possible to stretch the lower limbs simultaneously with stretching the back muscles, thereby further improving the function. It can be enhanced.

(2) The handrail 5 does not always need to be connected to the base at its extended lower end. For example, if the support column 2 is sufficiently erected, as shown in FIG.
Can be supported only by the support.

(3) As means for returning and rotating the stretch bed 4 to the vertical position, in addition to using the weight 8 as described above, a torsion spring for returning may be provided at the bed rotation fulcrum.

(4) The frame 3 does not necessarily need to be composed of the support columns 2. For example, a pair of left and right wall plates are provided and this is used as the frame 3, and the stretch bed 4 is rotatable between the left and right wall plates. It is also conceivable that the handrails 5 are attached to the inner surfaces of the left and right wall plates via legs or the like while being supported.

(5) When installing this back stretcher outdoors, a simple roof for avoiding rain may be provided.

[0028]

As is apparent from the above description, the back stretcher of the present invention has the following effects.

According to the first aspect of the present invention, since it can be used in a standing posture, it can be easily installed and used indoors as well as outdoors. And straightening of the back as a maintenance exercise can be easily performed. In addition, since the amount of rotation of the stretch bed can be adjusted by adjusting the grip position of the handrail arbitrarily, the user himself adjusts the warp according to age and physical strength, and appropriately stretches the back muscles without applying excessive load Exercise has become possible.

According to the second aspect of the present invention, by grasping the handrail with both hands extended rearward, stretching and strengthening exercises of the upper limbs and pectoral muscles are also performed, which is more effective as preparation exercise and maintenance exercise. .

According to the third aspect of the present invention, this handrail is used to function as a reinforcing member for supporting the column from behind, so that the strength of the entire frame can be increased by effectively using the minimum necessary members. It is excellent not only in function but also in durability.

According to the fourth aspect of the present invention, by setting the range of rotation of the stretch bed from the vertical position to the substantially horizontal position in the rear direction, not only the function is excellent as described above, but also the safety is excellent. It will be.

According to the fifth aspect of the present invention, since the stretch bed is always returned to the vertical posture and rotated, the user can use the bed immediately without re-adjusting the bed posture, and the handleability is excellent.

According to the sixth aspect of the present invention, by introducing the footrest, the effect can be obtained also in the stretching exercise of the lower limbs, and the stretching exercise which is more functionally enhanced can be performed.

[Brief description of the drawings]

FIG. 1 is an external perspective view of a back stretcher according to the present invention.

FIG. 2 is a side view in a bed returning state.

FIG. 3 is a side view showing an example of a use state.

FIG. 4 is a side view showing another embodiment.

FIG. 5 is a perspective view showing another embodiment.

FIG. 6 is a perspective view of a conventional back straightening device.

[Explanation of symbols]

 2 Support 3 Frame 4 Stretch bed 5 Handrail 10 Front stopper 11 Rear stopper 12 Footrest X Horizontal horizontal axis

Claims (6)

[Claims] 1. A vertically elongated stretch bed having a front surface formed into a convex curved surface is rotatably supported on an upright frame around a horizontal horizontal axis, and is curved from an upper portion of the frame to a lower rear portion. A back stretcher characterized by the provision of handrails. 2. The frame is composed of a pair of left and right columns that are erected, a stretch bed is rotatably supported between the columns, and the handrail is extended from the upper part of each of the right and left columns. 2. The method according to claim 1, wherein
The described back stretcher. 3. The back stretcher according to claim 2, wherein the downward extension of the handrail is connected to a floor surface. 4. A rotation range of the stretch bed is regulated by front and rear stoppers so as to allow rotation only in a range from a vertical posture to a posture rotated rearward to a substantially horizontal posture. The back stretcher according to any one of claims 1 to 3. 5. The back stretcher according to claim 1, further comprising a rotation return unit that urges the stretch bed toward a vertical position in a free state. 6. The back stretcher according to claim 1, wherein a footrest is provided on a front floor surface of the stretch bed.