JPS6243542Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a health tool that elastically lifts and supports the upper body of a person sitting on a chair or the like, thereby effectively preventing stiff shoulders and lower back pain.

As control in human society progresses to a high degree as it does today, humans are often forced to remain in the same posture for long periods of time as they go about their lives. For example, when sitting in a chair and working at a desk at a company,
When a driver is involved in long-distance transportation while sitting in the driver's seat of a truck, or when passengers are seated for a long time on an airplane or tour bus, etc., it is important to keep the driver in the same position (especially in the front), although there are differences in degree. This means that they are forced to take a leaning position. When you maintain a posture that is close to leaning forward for a long time, the weight of the human head is applied perpendicularly to the cervical vertebrae, shoulders, and lower back (generally, the head accounts for about 10 to 12% of an adult male's body weight). This can lead to poor blood circulation in the area, causing neck pain, stiff shoulders, lower back pain, fatigue, and other negative effects. In order to prevent this kind of harm, it is effective to get out of your seat and do light exercises or stretch your back so that you are not stuck in the same position, but depending on the environment each person is placed in, it is effective to In many cases, this is difficult.

In fact, the inventor of this application once had experience driving a truck for long-distance transportation, and he found that if you hold the steering wheel for a long time in a slightly forward-leaning position while always paying attention to the forward view, As mentioned above, my neck and shoulders became stiff and my lower back hurt, so I felt deep fatigue after completing my mandatory journey, and it was not easy for me to recover. Therefore, the inventor investigated the cause of this fatigue and came to the conclusion that it was caused by the weight of the upper body, including the head, being applied to the cervical vertebrae, shoulders, and lower back for a long period of time while sitting.
Therefore, we believe that if we can reduce the weight of the human upper body (including the head) that is applied perpendicularly to the shoulders and hips, the burden on the cervical vertebrae, lower back, and other areas where the weight is concentrated will be reduced. I hung a long rubber belt in a loop form from the ceiling of the seat, hung it on both sides and around my chin, and adjusted the belt's elasticity so that it acted upward.As a result, my upper body, including my head, was suspended elastically. It was found that as a result of being maintained, the neck pain, stiff shoulders, lower back pain, etc., were all relieved at once. It has become clear that suspending the upper body with an elastic belt has an extremely significant effect, but at this prototype stage there is still a lot of room for improvement in terms of usability and appearance, and it cannot be put into practical use right away. Therefore, after repeated prototype improvements, the present invention was proposed.

In other words, the purpose of this invention is to elastically lift the upper body of the human body upward and reduce the weight of the upper body (including the head) that is applied to the cervical vertebrae, shoulders, and lower back, thereby improving blood circulation and reducing neck pain, stiff shoulders, and It aims to relieve back pain.

Therefore, the device for elastically lifting and supporting the upper body of a human body according to the present invention includes a pair of armrests arranged on both left and right sides of a base plate so as to be height adjustable and configured to elastically bias the armpits upward. The chinrest is characterized by comprising a chin rest that is height-adjustably disposed in front of the middle of the pair of arm rests and configured to elastically urge the chin rest upward.

Next, the device for elastically lifting and supporting the upper half of the human body according to the present invention will be described in detail below with reference to the accompanying drawings, citing preferred embodiments. This lifting device can be attached to a chair as described below, or can be attached to the back of a desk so that it can be pulled out, but basically it can be folded compactly on a board and can be carried freely. Since it can be understood as a single device, this configuration example will be explained first. FIG. 1 is a perspective view of a typical example of the lifting support device according to the present invention, showing a state in which a side rest and a chin rest, which will be described later, are set upright on a base plate,
FIG. 2 is a perspective view showing the apparatus shown in FIG. 1 in a state in which the arm rest and the chin rest are folded onto a base plate. In the figure, reference numeral 10 indicates a board having an arbitrary shape, and the device of the present invention basically comprises a pair of arm rests 22, 22 and a chin rest 38 disposed on this board 10.

That is, as shown in FIG. 1, on the substrate 10,
A pair of rails 16, 16 are embedded in parallel with a width dimension approximately equal to the torso width of an adult with a standard body shape,
A slider 18 is slidably inserted and fitted into each of the rails 16. In this case, the cross sections of the rail 16 and the slider 18 are shaped as shown in FIG. 3, for example, so that the slider 18 can freely slide along the rail 16, but cannot be separated even if an upward tensile force is applied. be. Said slider 1
A clevis 20 is formed at the top of 8, and a side hook 22 is foldably mounted on this clevis 20 as shown in FIG. The side hook 22 is the fourth
As shown in detail in the figure, there is a piston rod 26 with an armpit 24 such as a pad attached to the top, a cylinder 28 that supports the piston rod 26 slidably therein, and a cylinder 28 coaxially housed in the cylinder 28. It has a type of piston structure consisting of a compression coil spring 30 that elastically biases the piston rod 26 in the direction of extension. The lower end of the cylinder 28 constituting the side hook 22 is mounted on the clevis 20 via the bracket 25, and the cylinder 28 is raised within a predetermined range with respect to the bracket 25 by means of an adjustment bolt 27. It is configured to be adjustable. Further, the armpit rest 24 is positioned so as to exactly face the armpit of the person seated on the board 10. Note that cylinder 2
8 is provided with a click stop mechanism (not shown), for example, a combination of a notch and a ball, so that it is automatically locked when the device is raised from the folded position shown in FIG. 2 and reaches the upright position shown in FIG. ) is incorporated.

Further, as shown in FIG. 1, an arm 32 of a predetermined length is attached to the cylinder 28 of one of the pair of side hooks 22, 22 so as to be able to rotate horizontally. A chin rest 38 is arranged upright. The chinrest 38 is intended to elastically apply an upward lifting force to reduce the weight of the head applied to the cervical vertebrae when placed under the chin of a seated person, as will be described later. As shown in FIG. 5, a piston rod 42 has a chin rest 40 attached to its top, a cylinder 44 into which the piston rod 42 is slidably inserted and supported, and the cylinder 44.
The piston rod 42 is coaxially housed in the piston rod 42.
It is basically composed of a compression coil spring 46 that elastically biases the frame in the stretching direction. This chin rest 38 also has a cylinder 4 relative to the arm 32.
4 is arranged to be able to move up and down, and its height is adjusted by an adjustment bolt 50 inserted through a vertical groove 48 bored at the tip of the arm 32. After the user is seated on the base plate 10, the arm 32 is rotated from the cylinder 28 of the side rest 22 held upright and positioned in front of the user, and the chin rest 40 is placed on the chin of the seated person. Cylinder 4 so that it is facing exactly
Adjust the height in step 4.

Next, the actual use and effects of the lifting and supporting device according to the present invention configured as described above will be explained. First, the user sets the board 10 on the seat of a suitable chair, and then raises and locks the pair of armrests 22, 22 in an upright position, as shown in FIG. Next, as shown in FIG.
0, and after placing the armpit rests 24 under each armpit, adjust the cylinder 28 up and down to set it at an appropriate height. This height adjustment is set to such an extent that the armpit rests 24 can elastically abut against the armpits when the seated person stretches his or her back and looks horizontally ahead. Next, as mentioned above, one side hook 22 is
The arm 32 is horizontally rotated from the cylinder 28 to bring the chinrest 38 in front of the seated person's chest, and the height of the cylinder 44 is adjusted.
0 can elastically abut under the chin of a seated person who is also in a state where his/her back is stretched. The height dimensions of these side rests 22, 22 and chin rest 38 are as follows:
It is assumed that the optimum value is determined according to the user's sensation when wearing the device.

By sitting on a chair equipped with the lifting support device according to the present invention, most of the weight of the seated person's head is transferred to the chin rest 38 via the chin rest 40, and the chin rest 40 Since the head is elastically stretched and biased upward by the compression coil spring 46, the weight of the head that has been applied to the cervical vertebrae and shoulders is reduced by the amount that is lifted and supported. In addition, part of the weight of the upper body of the seated person is placed on the armpit rests 22, 22 located under both armpits, and the armpit rests 24
As a result of being elastically stretched and biased upward by the compression coil spring 30, the weight of the upper body that was applied to the waist is reduced by the amount that is lifted and supported at both sides. This means that
This means that smooth blood circulation is maintained in all parts of the human body without pressure on the blood vessels.Therefore, even if you sit in the same position for a long time, you will not experience jaw pain or pain.
It does not cause discomfort such as stiff shoulders or lower back pain, and greatly contributes to maintaining health. After use, as shown in FIG. 2, each side hook 22 is slid on the rail 16 as appropriate, and the cylinder 28 supported by the clevis 20 is folded down to be compactly folded and stored. Also, the chin rest 38,
It is folded onto the substrate 10.

Next, a modification of the device according to the present invention will be described. FIG. 7 shows the device of the present invention integrated into a chair, and the chair 52 basically consists of legs 54, a seat 56, and a backrest 58. The backrest 58 does not necessarily have to be provided. The chair may also be a seat chair that is uniquely used in Japanese houses. The armrests 22 are arranged on both the left and right sides of the seat 56 of the chair 52 so that the height can be adjusted freely, and the cylinder 28 of the armrest 22 is connected to the seat 56.
The chair 52 is mounted upright on the side of the chair 52 via a bracket 60 and an adjustment bolt 62 so as to be height adjustable, and the armpit rest 24 is positioned so as to face the armpit of the person sitting on the chair 52.

The chin rest 38 is disposed at an intermediate front position between the pair of side rests 18. This chin rest 38
The cylinder 44 is mounted in an upright state in a height-adjustable manner, for example, to an arm 64 that extends horizontally from one cylinder 28 of the side rest 22 toward the front in a horizontal direction, and the chinrest 40 is attached to the chair 52. The position is set in advance so as to face the chin of the seated person. The height adjustment mechanism for the cylinder 44 includes:
A configuration has been proposed in which a bolt fixed upright on the side of the cylinder 44 is inserted into a long hole provided at the tip of the arm 64 and tightened with a thumbscrew, but various other mechanisms may be adopted from the viewpoint of ease of manufacture and cost. It is possible. Note that the bracket 64 is
Since it is designed to be able to pivot horizontally forward, it does not become a hindrance when sitting on the chair.

FIG. 8 shows yet another modification of the device of the present invention, which is always stored on the back side of the top plate 66 of the desk and is configured to be pulled out from the top plate 66 and set when in use. This is what I did.
Various configurations are conceivable for this drawer mechanism, but a rail is provided on the back of the top plate and a slider 68 is provided on this rail so that the drawer can be freely drawn out and stored.
It is preferable to attach side hooks 22, 22 and chin hook 38 to this slider 68, respectively. In this case, it is convenient because the device of the present invention can be pulled out and used only when the user is sitting at the desk, and stored inconspicuously when not in use.

As described above, the device for elastically lifting and supporting the upper body of the human body according to the present invention can be effectively used to maintain and promote the health of people who work or study while sitting on a chair.

[Brief explanation of the drawing]

1 and 2 are schematic configuration diagrams showing the basic structure of the lifting support device according to the present invention, FIG. 3 is a sectional view showing the fitted state of the rail and slider, and FIGS. 4 and 5 are side views, respectively. 6 is an explanatory diagram showing the state in which the device according to the present invention is used; FIG. 7 is an explanatory diagram of an embodiment in which the device is incorporated into a chair; FIG. 8 is a perspective view of an embodiment in which the present device is incorporated into a desk. 22...armpit rest, 24...armpit rest, 38...chin rest, 40...chin rest.

Claims (1)

[Claims for Utility Model Registration] (1) A pair of armrests arranged on both left and right sides of a board so that the height can be adjusted and configured to elastically bias the armpits upward; A device for resiliently lifting and supporting the upper body of a human body, comprising a chin rest that is height-adjustably disposed at the middle front and configured to elastically bias the chin rest upward. (2) The side hook includes a piston rod with an armpit attached to the top, a cylinder that slides through and supports the piston rod, and a compression coil that is housed in the cylinder and elastically biases the piston rod in the direction of extension. A device for elastically lifting and supporting the upper body of a human body as claimed in claim 1, which comprises a spring. (3) The chin rest includes a piston rod with a chin rest attached to the top, a cylinder that slides through and supports the piston rod, and a compression coil that is housed in the cylinder and elastically biases the piston rod in the direction of extension. A device for elastically lifting and supporting the upper body of a human body as claimed in claim 1, which comprises a spring.