JPH0672203A - Seat device - Google Patents

Abstract

PURPOSE:To provide comfortable sitting feeling capable of driving for a long time, by tilting an upper part and a lower part of a main back by two stages for being adjusted carefully to a suitable optimum solex support posture through operation of a thorax regulation mechanism. CONSTITUTION:A seat back 10 has a main back 11 which touches a driver's back face, and a solex regulation mechanism to displace the main back 11 is mounted at a back frame builtin the seat back 10. In a driving mechanism 30 of a solex unit which composes the solex regulation mechanism, a pinion driving machine is operated so that a swing shift 33 juts forward. This results in that a front upper panel 23a and a front lower panel 23b swing forward while being folded alternately, for swinging forward by two steps an upper part of the main back 11 corresponding to an upper back face of the driver and a lower part of the main back 11 corresponding to the hip of the driver respectively. Then the driver, according to his choice, can keep a solex posture where his hip is shifted forward.

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. 11, the back of the person M when standing upright has a so-called S-shape with the upper rear part of the waist inside. From the idea that it is most comfortable to keep this posture,
It was generally believed that the seat 1 was provided with a lumbar support 2 for holding the back of the waist forward, as shown in FIG.

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 and operates the steering wheel, it is common to raise the upper body as indicated by the arrow in FIG. 13, and 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 will be 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.

Therefore, 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. 9, 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 of the cat and the lower part of the hip is slid forward as shown in the range B, and the person M is held in this state as shown in FIG. The conclusion is that is the posture that is the least tired,
This state is called the Thorax 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 (10) is divided into a main back (11), which is a back of a seated driver, and back side portions (12, 12) provided on both sides so as to suppress lateral movement of the driver. Back side (12,
12) is fixed to a back frame (13, 13) built in the seat back (10), while a soralux adjusting mechanism for displacing the main back (11) is provided on the back frame (13, 13), The soralux adjustment mechanism is attached to a position corresponding to the upper part of the main back (11) and the upper part of the back of the driver or the lower part of the main back (11) corresponding to the back of the driver's hip. A soralux unit (20), the soralux unit (20) is provided with the back frame (1).
3) fixed to the rear panel (22) and the main back (1) swingably attached to the rear panel (22).
Front upper panel (23a) supporting the back surface of 1)
A front lower panel (23b) that is further swingably attached to the swing end of the front upper panel (23a) and supports the back surface of the main back (11) together with the front upper panel (23a); and the rear panel. And the front upper panel (23a) or the front lower panel (23b).
In order to tilt the upper part or the lower part of 1) to the front position that forms the saw rack support posture, a drive mechanism (30) for bending the front upper panel (23a) and the front lower panel (23b) while bending each other is provided. The present invention resides in a seat device.

[0010]

Operation: The driver of the vehicle operates the saw rack adjustment mechanism to tilt the upper or lower portion of the main bag (11) or both the upper portion and the lower portion in two steps to finely adjust to the optimum saw rack support posture. You can adjust it and get a very comfortable sitting feeling even if you sit for a long time.

That is, when the drive mechanism (30) of the saw rack unit constituting the saw rack adjusting mechanism is operated, the front upper panel (23a) and the front lower panel (23b) swing while bending each other. The upper or lower portion of the back is tilted in steps to displace it to a forward position that forms a sawrax support posture.

Therefore, it is possible for the driver to form and maintain the slacks support posture in which the driver's back is rounded and the butt is slightly shifted in front of the driver, and the slacks support posture preferred by the driver is finely shaped 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 6 show a seat device according to 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
In FIG. 1 (not shown in FIG. 1), the back side portions 12 and 12 are respectively the side plates 13 of the back frame 13.
It is attached by inserting a and 13a inside. Further, the main back 11 is attached with its back surface supported by an upper pipe 14 provided laterally above the back frame 13, and a front upper panel 23a and a front lower panel 23b, which will be described later, of the saw rack adjusting mechanism.

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. 2 to 5, the soralux unit 20 includes a rear panel 22 screwed to the back frame 13 at a mounting portion 21 and a rear panel 22 swingably mounted on the front surface of the rear panel 22 so that the rear surface of the main back 11 can be secured. A front upper panel 23a that supports the front upper panel 23a, a front lower panel 23b that is further swingably attached to the swing end of the front upper panel 23a and supports the back surface of the main back 11 together with the front upper panel 23a, a rear panel 22 and a front upper panel 23b. Panel 23a or front lower panel 23b
The drive mechanism 30 is provided between the front upper panel 23a and the front lower panel 23b to bend the front upper panel 23a and the front lower panel 23b while swinging each other, and a saw rack sensor 37.

The front upper panel 23a is swingable by being connected to both upper ends of the rear panel 22 with stepped bolts 24, 24 on both sides of its upper end. Further, the front lower panel 23b is hinged by a shaft 25 and a push nut 26 as shown in FIG.

As shown in FIGS. 2, 3 and 4, the drive mechanism 30 includes a pinion drive machine 31 attached to the side plate portion of the rear panel 22, and the pinion drive machine 31 to the rear panel 22.
The pinion 32 is arranged so as to extend inside and is pivotally supported and driven by the pinion drive unit 31, and the center of the rod-shaped member is curved in a U shape, and is pivotally supported between the side plate portions on both sides of the rear panel 22. The swing shaft 33 and a sector gear 34 fixed to one end of the swing shaft 33 and meshed with the pinion 32.

The pinion driving machine 31 is composed of a motor and a gear reduction mechanism, and rotates the pinion 32 with a low speed and a high torque. The U-shaped curved portion of the rocking shaft 33 is bent forward so as to avoid interference with the front panel during rocking as shown in FIG. 3, and the bent center is fixed to the inner surface of the front lower panel 23b. The hook member 35 is swingably engaged.

Sollux sensor 37 (shown in FIG. 4)
Is a sensor that is attached to the inner surface of the rear panel 22 and detects when the main back 11 is displaced within a range forming a sorax support posture by detecting the swing position of the sector gear 34. For example, limit switches can be used.

The specifications of the pinion 32 (for example, the number of teeth, the meshing position) and the length of the rocking shaft 33 are determined from the state in which the pinion 32 is rotated and the rocking shaft 33 is pulled inward. When swinging upward, the front upper panel 23a and the front lower panel 23b
Is set so that it can be bent in a state parallel to the rear panel 22 (vertical state) while tilting forward while forming a sorax support posture.

Next, the operation of the first embodiment will be described.
With the seat device described above, the driver of the vehicle operates the saw rack adjusting mechanism (pinion drive 31) to tilt the lower portion of the main bag 11 in two steps to finely adjust to the optimum saw rack support posture. However, it is possible to obtain a very comfortable seating feeling even when sitting for a long time.

That is, as shown in FIG. 3, by operating the pinion driving machine 31, the swing shaft 33 is swung so as to be projected forward with the rotation of the pinion 32, and the front upper panel 23a and the front lower panel are swung. 23b can be tilted forward while bending each other. In addition, at this time, when the main back 11 is displaced to a position that forms the slacks support posture, the sector gear 34 is moving within the detection range of the slacks sensor 37 and a signal is output from the slacks sensor 37. If a proper display is given to the driver or the like based on the signal, the driver or the like can objectively judge that the driver is in the thorax posture. 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 lower back of the main back 11 corresponding to the driver's hip is tilted forward in two steps so that the driver has a sorax support posture in which the hip is slightly shifted forward, and the driver prefers it. It is possible to finely maintain the position of the sorax support.

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. 8, 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. Independently tilting each forward in two steps, the driver has a sorax support posture with his back curled up and his buttocks slightly shifted forward, and yet the soralux support posture that the driver prefers is maintained very carefully. You can That is, in this case, since the main bag 11 is tilted and displaced in five steps, the degree of freedom of the holding posture is extremely high.

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

In the above-mentioned embodiment, the above-mentioned saw-lux sensor 37 is provided in order to ensure the adjustment to the posture of the saw-lux support. A scale or an indicator line indicating a preferable angle range of the main bag 11 may be formed.

[0030]

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 or lower part of the main bag or both the upper and lower parts in two steps. You can finely adjust to the optimal Soluxe support posture, and you can get a very comfortable sitting feeling even if you sit for a long time.

Moreover, since the sawlux adjusting mechanism is constituted by a unitized sawlux unit, only the sawlux unit is separately assembled and the solelux 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 an exploded perspective view showing a saw rack unit of the seat apparatus according to the first embodiment of the present invention.

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

FIG. 4 is a partial perspective view showing a saw rack unit of the seat apparatus according to the first embodiment of the present invention.

FIG. 5 is a perspective view showing a connection configuration of the front upper panel and the front lower panel in the saw rack unit of the seat apparatus according to the first embodiment of the present invention.

FIG. 6 is a perspective view showing a cushion body of the seat apparatus according to the first embodiment of the present invention.

FIG. 7 is a perspective view showing a seat device according to a second embodiment of the present invention.

FIG. 8 is a side sectional view showing a seat device according to a second embodiment of the present invention.

FIG. 9 is a diagram for explaining a sorax support posture.

FIG. 10 is a diagram for explaining a sorax support posture.

FIG. 11 is a diagram for explaining the state of the spine of the human body in the upright posture.

FIG. 12 is a diagram for explaining a support posture in a conventional seat device.

FIG. 13 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 cus unit 21 ... Rear panel 22a ... Front upper panel 22b ... Front lower panel 30 ... Drive mechanism

Claims (1)

[Claims] 1. A seat device capable of adjusting to a sorax support posture to give a comfortable seating feeling to a driver of a vehicle, the seat back including a main back which is a back surface of a seated driver and a side of the driver. To adjust the main back to the back frame while the back side is fixed to the back frame built into the seat back so that the main back is displaced. A mechanism is provided, and the soralux adjusting mechanism is attached to a position corresponding to the upper part of the main bag and the upper part of the back of the driver or the lower part of the main bag corresponding to the back of the driver's hip. The saw rack unit includes a rear panel fixed to the back frame and a swingable mount on the rear panel. A front upper panel that supports the back surface of the main back, a front lower panel that is swingably attached to a swing end of the front upper panel and that supports the back surface of the main back together with the front upper panel, and the rear panel. And a front upper panel or a front lower panel, and while bending the front upper panel and the front lower panel with respect to each other so as to tilt the upper or lower portion of the main back to a front position that forms the saw rack support posture. A seat device comprising a drive mechanism for swinging the seat device.