JPH0672202A - Seat device - Google Patents

Abstract

PURPOSE:To provide comfortable sitting feeling even in a drive for a long time, by tilting an upper part and a lower part of a main back so as to have a structure to be adjusted to a suitable optimum solex support posture through operation of a thorax regulation mechanism. CONSTITUTION:A seat back 10 is divided into a main back 11 which touches a driver's back face, and back side units 12 which prevent a driver from moving sideways. A solex regulation mechanism, which is composed of a solex unit 20, to displace the main back 11 is mounted at a back frame 13. The solex unit 20 has rear panels 22 fixed to the back frame 13 at mounting parts 21 thereof, a front panel 23 swingingly mounted at the front thereof for supporting the main back 11, and a driving mechanism to swing the front panel 23. The driving mechanism is operated and the front panel 23 is swung so that a solex support posture is kept to driver's choice.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seat device that can be adjusted to a sorax support position to give a driver of a vehicle a comfortable seating feeling.

[0002]

2. Description of the Related Art There have been many studies on the shape of a seat for giving a seated person a comfortable sitting feeling. As shown in FIG. 9, the back of the person M when standing upright has a so-called S-shape with the upper rear part of the waist inward. From the idea that it is most comfortable to keep this posture, as shown in FIG. 10, it is common to provide the seat 1 with the lumbar support 2 for holding the back of the waist forward. It was believed that that was the only comfort factor.

On the basis of such an idea, in order to give the seated person a degree of freedom as much as possible, for example, JP-A-59-168816, JP-A-62-159764, etc. Various seat devices have been proposed.

[0004]

However, according to the research conducted by the inventors, such a conventional technique is a theory biased to static observation of merely sitting, and It has been found that it is not always possible to adapt to the dynamic situation in which a certain driver drives a car.

That is, because the driver grips the steering wheel and operates it, it is common for the driver to raise his / her upper body as shown by the arrow in FIG. 11. Then, the driver becomes a so-called stoop and the waist is fixed. If you have a stoop, the abdomen will be pressed and you will have a hard time, so there will be a so-called slipping phenomenon that you push your buttocks forward and the back of your buttocks will be separated from the seat back, and the back of person M when standing upright is S-shaped. According to the above-mentioned theory of trying to keep the problem, in the case of the driver, the body is rather not supported and becomes unstable, and it is easy to get tired when driving for a long time, and it is impossible to drive after getting a comfortable sitting feeling. was there.

The present invention has been made by paying attention to the problems of the prior art as described above. Even when the driver sits for a long time and performs a driving operation, he / she is comfortable to sit and is not tired. It is an object to provide a seat device that can be obtained.

[0007]

According to the research conducted by the inventors, it is verified that when the driver takes a driving posture for a long time, the posture with the back curled and the hip slightly shifted forward is most comfortable. Has been obtained. That is, the feeling of sitting varies from person to person, and there is also a time factor. Even if it is comfortable at first, the comfort does not always last. Is not always comfortable and accumulates fatigue.

Then, as a result of studying what kind of posture the driver is comfortable with, as shown in the curve of the spine of the seated person in FIG. 7, when the hip point C is in the illustrated position, the upper range is As shown in A, it is comfortable that the upper body is raised to the back and the lower back is pushed forward as shown in the range B in the lower part. In this state, the person M is held as shown in FIG. It was concluded that this is the posture that is the least likely to cause fatigue, and we decided to call this state the solax support posture.

Based on the above conclusion, the gist of the present invention for achieving the above-mentioned object is a seat device capable of adjusting to a sorax support posture which gives a comfortable seating feeling to a driver of a vehicle. The back cushion body (10) is divided into a main back (11) which is a back of a seated driver and back side portions (12) provided on both sides so as to suppress lateral movement of the driver, The back side part (11) is fixed to a back frame (13) built in the cushion body (10), and a sorax adjusting mechanism for displacing the main back (11) is provided on the back frame (13). The soralux adjustment mechanism is located at a position above the main bag (11) and above the back of the driver or below the main bag (11) behind the driver's hips. Is composed of saw Lux units attached to corresponding positions (20), the saw Lux unit (20), said back frame (1
3) fixed to the rear panel (22) and the main back (1) attached to the rear panel (22) in a tiltable manner.
1) is provided between the front panel (23) that supports the back surface of the main back (11) and the rear panel (22) and the front panel (23) so that the upper or lower part of the main back (11) is in the sorax support posture. A seat device characterized by comprising a drive mechanism (25) for swinging the front panel (23) so as to tilt the front panel (23) to a front position to be formed.

[0010]

The driver of the vehicle operates the saw rack adjusting mechanism to tilt and displace the upper portion or the lower portion of the main bag (11) or both the upper portion and the lower portion to appropriately adjust the position of the saw racks, and to adjust the length. You can get a comfortable sitting feeling even after sitting for hours.

That is, when the drive mechanism (25) of the saw rack unit (20) constituting the saw rack adjusting mechanism is operated, the front panel (23) swings to tilt the upper or lower portion of the main back (11). And displace it to the forward position, which forms the Sorrax support posture.

Therefore, the driver can form and maintain the sorax support posture in which the driver's back is rounded and the buttocks are slightly shifted forward, and further, the soralux support posture that the driver likes is formed and maintained.

Further, since the sawlux adjusting mechanism is composed of a unitized sawlux unit (20), only the sawlux unit (20) is separately assembled and finally the rear panel (22) is assembled. With the procedure of fixing this saw-lux unit (20) to the back frame (13), it becomes possible to easily provide the saw-lux adjustment mechanism.

[0014]

Embodiments of the present invention will be described below with reference to FIGS. 1 to 4 show the seat device of the first embodiment.

This seat device, as shown in FIGS.
The cushion body 10 of the seat back is divided into a main back 11, which is a back surface of a seated driver, and back side parts 12, 12 provided on both sides so as to suppress lateral movement of the driver. 12 and 12 are fixed to both side plates 13a and 13a of a back frame 13 built in the cushion body 10, while the back frame 13 is provided with a soralux adjusting mechanism for displacing the main back 11.

The seat back cushion body 10
(Not shown in FIG. 1) is divided into a main back 11 and back side parts 12 and 12, for example, as shown in FIG.
The three side plates 13a, 13a are attached so as to fit inside. The main bag 11 is the back frame 1
The upper pipe 14 provided laterally on the upper part of the No. 3 and a front panel 23, which will be described later, of the saw rack adjusting mechanism are attached with their back surfaces supported.

The soralux adjusting mechanism is composed of a soralux unit 20 provided below the main back 11 and at a position corresponding to the back of the driver's hips. As shown in Figs.
1, a rear panel 22 screwed to the back frame 13, a front panel 23 swingably attached to the front surface of the rear panel 22 to support the back surface of the main back 11, and between the rear panel 22 and the front panel 23. Is provided to tilt the lower portion of the main bag 11 to the front position forming the saw rack support posture shown in FIG.
It comprises a drive mechanism 25 for swinging the front panel 23 and a saw-lux sensor 35. The front panel 23 has stepped bolts 24, 24 on both sides of its upper end.
It is swingable by being connected to both upper ends of the rear panel 22.

The drive mechanism 25 is mounted on the upper center of the inner surface of the rear panel 22 and a screw shaft drive machine 26. The drive mechanism 25 is arranged so as to extend downward from the screw shaft drive machine 26. A screw shaft 27 that is supported and driven, and a nut housing 28 that moves up and down by being screwed into the screw shaft 27.
And both sides of the nut housing 28 and the front panel 2
Links 29 and 29 connecting the inner surface of the nut 3 and guide plates 30 fixed to both sides of the nut housing 28 on the inner surface of the rear panel 22 to support and guide the nut housing 28.

Here, the screw shaft driving machine 26 is composed of a motor and a gear reduction mechanism, and rotates the screw shaft 27 at a low speed and a high torque. Pins 31 and 31 are provided on both side surfaces of the nut housing 28 so as to project from the ends of the links 29 and 29 and are inserted into the long holes 32 and 32 of the guide plate. The housing 28 is supported and guided by the guide plates 30 and 30, and one ends of the links 29 and 29 are pivotally supported by the nut housing 28. Further, the other ends of the links 29, 29 are swingably connected to mounting parts 33, 33 formed on the inner surface of the front panel 23 by pins.

The soralux sensor 35 is provided on the rear panel 2.
A sensor which is attached to the inner surface of 2 and detects when the main bag 11 is displaced within a range forming a saw rack support posture by detecting the moving position of the link 29, and specifically, for example, a so-called limit switch. Can be used.

The specifications of the screw shaft 27 (for example, the lead), the length of the link 29, and the like are such that when the screw shaft 27 rotates and the nut housing 28 rises from the lowered position, the front panel 23 is rear panel 22. It is set so that it can be tilted forward from a state parallel to (vertical state) to form a sorax support posture.

Next, the operation of the first embodiment will be described.
With the seat device described above, the driver of the automobile operates the saw rack adjusting mechanism (screw shaft driving machine 26) to tilt and displace the lower portion of the main bag 11 to adjust the saw rack support posture to an optimal posture, and to adjust the length. You can get a comfortable sitting feeling even after sitting for hours.

That is, as shown in FIG. 2, by operating the screw shaft driving machine 26, the nut housing 28 is raised as the screw shaft 27 rotates, and the link 29,
The front panel 23 can be tilted forward by moving 29 so as to project forward.

In addition, at this time, when the main bag 11 is displaced to a position that forms the soralux support posture,
As shown by the chain line in FIG. 2, the link 29 has moved to the detection range of the soralux sensor 35,
Since a signal is output from 5, the driver or the like can objectively judge that the driver or the like is in the sollux posture by making an appropriate display to the driver or the like based on this signal.
Therefore, a problem that the driver is not adjusted to the sorax support posture due to unfamiliarity, illusion, etc. is eliminated, and the soracus support posture is surely adjusted. Therefore, the main back 11 corresponding to the driver's hips
The lower part of the vehicle can be tilted forward so that the driver's hips are slightly shifted forward, and the driver can maintain the desired sorax support attitude.

Next, a second embodiment will be described with reference to FIGS. The device of the second embodiment is similar to the device of the first embodiment, and the same components as those of the first embodiment are designated by the same reference numerals and the description thereof will be omitted. In the second embodiment, a characteristic of the second embodiment as compared with the first embodiment is that the saw rack unit 20 as the saw rack adjusting mechanism is located above the main back 11 and above the back of the driver, and The points corresponding to the back of the hips are arranged vertically symmetrically.

In the device of the second embodiment, as shown in FIG. 6, an upper portion of the main bag 11 corresponding to the upper rear portion of the driver and a lower portion of the main bag 11 corresponding to the rear of the driver's hips. It is possible to keep the sorax support posture that the driver likes by tilting each of them independently to the front so that the driver rolls his back and slightly shifts his hips forward, and further, the soralux support posture that the driver likes.

The present invention is not limited to the first and second embodiments described above, but various modifications can be made. For example, the soralux unit 20 may be provided only at a position corresponding to the driver's back.

Further, in the above-mentioned embodiment, the above-mentioned saw-lux sensor 35 is provided in order to ensure the adjustment to the posture of the saw-lux support, but instead of this or together with this structure, it is provided at a proper position on the surface of the apparatus. A scale or an indicator line indicating a preferable angle range of the main bag 11 may be formed.

[0029]

According to the seat device of the present invention, the driver of the automobile operates the saw rack adjusting mechanism to tilt and displace the upper part or the lower part of the main bag, or both the upper part and the lower part of the main back, thereby appropriately optimizing. Adjust to the sorax support posture,
You can get a comfortable sitting feeling even if you sit for a long time.

Moreover, since the sawlux adjusting mechanism is composed of a unitized sawlux unit, only this sawlux unit is separately assembled, and this solex unit is fixed to the back frame at the rear panel. It becomes possible to easily assemble the saw-lux adjustment mechanism, and the assembling work can be simplified.

[Brief description of drawings]

FIG. 1 is a perspective view showing a seat device according to a first embodiment of the present invention.

FIG. 2 is a side sectional view showing a saw rack unit of the seat apparatus according to the first embodiment of the present invention.

FIG. 3 is an exploded perspective view showing a saw rack unit of the seat apparatus according to the first embodiment of the present invention.

FIG. 4 is a perspective view showing a cushion body of the seat apparatus according to the first embodiment of the present invention.

FIG. 5 is a perspective view showing a seat device according to a second embodiment of the present invention.

FIG. 6 is a side sectional view showing a seat device according to a second embodiment of the present invention.

FIG. 7 is a diagram for explaining a sorax support posture.

FIG. 8 is a diagram for explaining a sorax support posture.

FIG. 9 is a diagram for explaining the state of the spine of the human body in the upright posture.

FIG. 10 is a diagram for explaining a support posture in a conventional seat device.

FIG. 11 is a diagram for explaining a support posture in a conventional seat device.

[Explanation of symbols]

 10 ... Cushion body 11 ... Main back 12 ... Back side part 20 ... Solar Lux unit 21 ... Rear panel 22 ... Front panel 25 ... Drive mechanism

Claims (1)

[Claims] 1. A seat device capable of adjusting to a sorax support posture, which gives a comfortable seating feeling to a driver of a vehicle, wherein a cushion body of a seat back is a main back which abuts a back surface of the seated driver, and a driver. Is divided into back side portions provided on both sides so as to suppress lateral movement of the back side portion, and the back side portion is fixed to a back frame incorporated in the cushion body, while the main back is displaced on the back frame. A sorax adjusting mechanism is provided, wherein the soralux adjusting mechanism is a position corresponding to an upper part of the main bag and an upper part of a back of a driver or a lower part of the main bag corresponding to a back of a driver's hip. And a rear panel fixed to the back frame and a rear panel fixed to the back frame. A front panel that is tiltably mounted to support the back surface of the main back, and is provided between the rear panel and the front panel, and tilts the upper or lower part of the main back to a front position that forms the saw rack support posture. In order to achieve the above, a seat device comprising a drive mechanism for swinging the front panel.