JPS61220615A - Human body support apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Technical Field] This invention supports the human body by being configured in the shape of a chair, bed, etc. Even when used for a long time, it reduces the burden on muscles and bones and reduces fatigue. This article relates to a human body support device (a type of so-called health equipment) that reduces the risk of injury.

[Background technology]

For example, if you sit in a chair for a long time, you will naturally want to move your body and your muscles will start to ache, which we often experience on a daily basis. In short, it is extremely difficult to maintain the same posture for a long period of time.

The reason for this can be considered as follows.

■ The most comfortable posture for a person differs slightly from person to person. It cannot be determined unequivocally which posture is the most comfortable. Moreover, it is difficult for each person to obtain the most suitable chair.

■ Even if there is a chair that provides the most comfortable posture for everyone or for a particular individual, if you remain in the same position for a long time, your muscles will become stiff and you will become fatigued. In other words, it will be easier to move your muscles, even if only a little at a time.

The above also applies to beds, which is why we toss and turn during sleep.

2. Description of the Related Art Conventionally, various human body support devices have been provided as health equipment that are designed to allow people to relax or sleep in a comfortable position on a chair or bed.

However, in all of them, the human body support surface is fixed. Due to the above-mentioned circumstances, when using the device for a long period of time, there is a problem in that the human body must move and fatigue becomes severe.

[Purpose of the invention]

An object of the present invention is to solve the problems of the prior art and to provide a human body support device that causes less fatigue even when used for a long time.

[Disclosure of the invention]

The human body support device of the present invention includes a plurality of human body supports arranged in parallel, each having a human body support surface, and each of which is swingable in a direction along a plane perpendicular to the human body support surface; The apparatus is provided with a swing drive mechanism that drives each of the plurality of human body supports individually and swings each of the human body supports along the aforementioned direction.

The effects of the configuration of this invention are as follows.

Each of the multiple human body supports that support each part of the human body is actively swung by the oscillating drive mechanism, so even when using the body for a long period of time, the human body has to move, which can lead to severe fatigue. The problem of
Effectively reduce fatigue.

Embodiment An embodiment in which the present invention is applied to a chair will be described with reference to FIGS. 1 to 9. Figure 1 shows the human body support device (
A perspective view of the internal structure of the chair (Figure 2 is a cutaway side view, Figure 3 is a broken side view).
The figure is an enlarged side view of the part, the fourth lever is an enlarged plan view of the part, FIG. 5 is a schematic perspective view of the whole, and FIG. 6 is a block diagram of the control means of the swing drive mechanism.

As shown in FIGS. 1 and 2, front and rear struts 2 and 3 are erected from the stabilizing leg 1, and a fourth shaft body S4 is pivoted on the front strut 2 so as to be swingable around the left and right axis X4. A fifth shaft S is supported at the end of the fourth shaft S4.

is rotatably supported around the left and right axis X5.

Further, a third shaft S3 is pivotally supported on the rear column 3 so as to be swingable around the left and right axis X3, and a second shaft S2 is supported at the end of the third shaft S3 around the left and right axis X2. The first shaft body S is pivotally supported at the end of the second shaft body S2 so as to be pivotable about the left-right axis X1.

Cylindrical shafts 4.4 are fixed to the top and bottom of the back surface of the rectangular first support plate A1, and these cylinder shafts 4,4 are attached to the first shaft S,
It is externally fitted so as to be rotatable around its axis. The first support plate A includes a frame 5 made of a pipe or the like and a frame 5.
It consists of a thin plate material 6, such as a sheet metal or plastic plate, fixed to the front part of the vehicle.

An arm 7 extending rearward is fixed to the rear part of the first shaft S1 between the upper and lower cylindrical shafts 4, 4, and a swing lever 8 is attached to the rear end of this arm 7 to rotate around the left and right axes. It is pivoted. A motor mounting plate 9 is fixed to the upper end of the second shaft body S2, and a first back-and-forth swing motor M1 is mounted on the motor mounting plate 9. A small arm 10 is fixed to the output shaft of this motor M, as shown in FIGS. supported.

A cushion 1) is joined to the front surface of the first support plate A, and the first support plate A and the cushion 1) constitute a first human body support B1, and the surface of the cushion 1) is 1st
This constitutes the human body support surface C1.

The small arm 1 is driven by the first back-and-forth swing motor M.
0. The first shaft body S via the swing lever 8 and the arm 7
l is swung around the left and right axis X, and along with this, the first
The human body support B1 is also swung back and forth about the left-right axis XI. This configuration is the first longitudinal swing drive mechanism.

An arm 12 extending laterally is attached to the side of the first shaft S1 between the upper and lower cylinder shafts 4.4. A first left-right swing motor m is attached to the back surface of the first support plate A1.

As shown in FIG. 4, a small arm 13 is fixed to the output shaft of the arm 12. A protruding pin 15 is inserted through it.

The small arm 1 is driven by the first left-right swing motor m1.
3 rotates, the pin 15 of the small arm 13 receives a reaction force from the elongated hole 14 of the fixed arm 12 and moves in the front-back direction. As a result, the first human body support B, to which the first left-right swing motor m is attached, is swung left and right around the axis of the first shaft S.

This configuration is the first left-right swing drive mechanism d.

It is.

The above mechanism configured in relation to the first shaft S1 is similarly configured in relation to each of the second to fifth shafts S2 to S5. Therefore, a detailed description of each of them will be omitted, and only corresponding symbols will be shown in the drawings.

That is, A as corresponding to the first support plate A.
2 to A5, B2-Bs corresponding to the first human body support B, 02 to C3, corresponding to the first human body support surface C1, and the first back-and-forth swing motor M. m2 to M5 as those corresponding to the first left-right swing motor m1, and D2 to D as those corresponding to the first front-back swing drive mechanism D1.
5 and d2 to d5 corresponding to the first left-right swing drive mechanism d1.

In addition, the parts 1 components indicated by codes 4 to 15 are also included in each human body support B.
, ~B5 are used. However, the third and fourth back-and-forth swing motors M3, M,
Large motor mounts, each fixed to the struts 2.3, are attached to the plates 9', 9'.

As shown in FIG. 5, the entire body is covered with a series of elastic covers 16.

To summarize the above, (1) A plurality of human body supports B I''Bs each having a human body support surface Cl-05 are arranged in parallel along a vertical plane.

■ As shown in FIG. 7, the plurality of human body supports B1 to B are
, are configured to be able to swing back and forth in a direction along a plane perpendicular to each human body support surface C1 to C5 through the line in which they are arranged in parallel.

These swings are caused by a plurality of human body supports B1 to B.

are carried out independently of each other.

■ Each of the plurality of human body supports B, ~B, is moved perpendicularly to each of the human body support surfaces 01 to C3 through a plane perpendicular to the parallel line by each of the left and right swing drive mechanisms d1 to d. It is configured to be able to freely swing left and right in the direction along the plane. Those oscillations are caused by a plurality of human body supports B
I”” B s are performed independently of each other (8th
(see figure).

■ The first and second body supports B, , B are back supports, and the third body support B3 is a lumbar support,
The fourth body support B4 is a buttock support, and the fifth body support B is a leg support.

Next, the control means for the swing drive mechanism will be explained based on FIG.

The first back and forth swing motors M1 to M and the first left and right swing motors m1 to m5 are connected to pulse encoders E + -Es and e1 to e that detect the respective rotation angles, and control In section 17, each motor M, ~M
9. The rotation/stop, rotation direction, rotation angle, and rotation speed of m1 to m are configured to be controlled independently from each other.

Control of the rotational speed corresponds to adjustment of the period of rocking of the human body supports B1 to B. Each motor MI~M5, m, ~m
, is equipped with a speed reducer, and is designed so that the period of swinging of the human body supports B1 to B is 1 to 2 hours.

This cycle is determined to be the same as the depression cycle for turning over during sleep. In other words, the reason for tossing and turning is to reduce muscle fatigue, and by setting this cycle,
This is because it can also reduce fatigue while sitting on a chair.

The operation unit 18 includes motors M+ to M5, ml to m.

drive switch Sw, ~3w,. , human body support B+~B
5 Overall posture type selection switch SS.

ss2. ss, . . . and a random cycle generation switch R3.

The memory 19 stores the states of the encoders E, -E5, and C1 to C5 in accordance with the type of posture selected by the operation unit 18, and thereby controls the motors M1 to M1 to C5.
After rotating M5 and ml-m5 by a predetermined angle, they are stopped, and the entire body support B, ~B, is rotated as shown in (A) to (C) in Fig. 9.
It can be maintained in various positions as shown in the figure below. figure(
A) is a posture for work, Figure (B) is a posture for leisure, Figure (C) is a posture for comfortable use.
) is a position for resting and sleeping. 20 is a power supply section.

In each of these various postures, the human body supports B1 to B5 swing back and forth and left and right at a certain period.

〔Effect of the invention〕

According to this invention, there are the following effects.

Since each of the multiple human body supports supporting each part of the human body is actively swung by a swiveling drive mechanism, problems such as having to move the human body even during long-term use and causing severe fatigue are avoided. This can effectively reduce fatigue.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the internal structure of a human body support device (chair) according to an embodiment of the present invention, Fig. 2 is a cutaway side view, Fig. 3 is an enlarged side view of the part, and Fig. 4 is an enlarged plan view of the part. 5 is a schematic perspective view of the entire structure, FIG. 6 is a block diagram of the control means of the swing drive mechanism, FIG. 7 is an explanatory diagram of the front-rear swing, and FIG. 8 is an explanatory diagram of the left-right swing. FIG. 9 is an explanatory diagram of various postures. B, ~B,...Human body support body, C5~C5...Human body support surface, D, ~D,...Back and forth direction swing drive mechanism, d. ~d,... Lateral swing drive mechanism, M I-M s.
...Motor for forward and backward swinging, ml""'m5...Motor for left and right swinging Fig. 3 Fig. 4 Fig. 5 (A) (B) Fig. 9

Claims (8)

[Claims] (1) A plurality of human body supports arranged in parallel, each having a human body support surface and each swingable in a direction along a plane perpendicular to the human body support surface, and these plural human body supports. A human body support device comprising: a swing drive mechanism that drives each support body individually and swings each human body support body along the above-mentioned direction. (2) The human body support device according to claim (1), wherein a plane perpendicular to the human body support surface passes through a line in which the plurality of human body supports are arranged in parallel. (3) The human body support device according to claim (1), wherein a plane perpendicular to the human body support surface passes through a plane perpendicular to a line in which the plurality of human body supports are arranged side by side. (4) The human body support device according to claim (1), wherein the plurality of human body supports are composed of a buttock support, a lumbar support, and a back support, and the entire body is chair-shaped. . (5) The human body support device according to claim (1), wherein each of the swing drive mechanisms uses a motor as its drive source. (6) The human body support device according to claim (1), wherein each of the swing drive mechanisms is configured to operate and stop independently of each other. (7) The human body support device according to claim (6), wherein each of the swing drive mechanisms is configured to freely change the stopping posture of each corresponding human body support. (8) The human body support device according to claim (1), wherein each of the swing drive mechanisms has a swing period of 1 hour to 2 hours.