JP2660308B2 - Car seat - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is applied to a seat using an air cushion of an automobile. TECHNICAL FIELD The present invention relates to a seat of an automobile, which makes it easy for a driver to get off.

[0002]

2. Description of the Related Art Conventionally, as disclosed in Japanese Utility Model Publication No. 43940/1993, a seat of this kind of vehicle is adjusted to a predetermined height by adjusting a suspension device body holding the seat. Adjustment means for setting the height of the seat, the monitoring means for monitoring a change in the height of the seat set for adjustment, and when the monitoring means confirms that the seat has reached the upper limit level or the lower limit level during the running of the vehicle, over a predetermined period of time. There is a means for forcibly changing the height of the seat to a preset prescribed level.

[0003] In such a conventional car seat, the position of the seat is set to a predetermined height, and a change in height occurring during traveling is detected to exceed the upper limit level.
Or, when it falls below the lower limit level, it is forcibly corrected so that it is located within the range of the predetermined prescribed level, and automatically corrects the fluctuation of the seat height that occurs when driving on rough roads, etc. It is designed to provide a comfortable ride.

[0004]

The above-mentioned conventional automobile seat is provided with a structure shown in FIG. 2 to absorb a bottoming phenomenon and a jumping-up phenomenon of a seat surface which occur at the time of running on a rough road and thereby obtain a comfortable riding comfort. When the weight of the driver's car is loaded as shown in the figure, the air bellows keeps the optimal position with a certain amount of deflection, but when the driver stops the vehicle and tries to get off, As shown in FIG. 3, since the load due to the weight applied to the vehicle is reduced, the air bellows expands, and the distance between the seat surface and the steering wheel becomes narrow, so that it is difficult to get off the vehicle.

An object of the present invention is to solve such a problem, and an object of the present invention is to provide a seat capable of automatically lowering a seat surface of a seat when a driver tries to get off the vehicle, thereby facilitating getting off. And

[0006]

SUMMARY OF THE INVENTION The present invention relates to a vehicle seat having an air bellows as a cushion material and an air circuit for supplying compressed air to the air bellows.
A detection circuit for detecting that the inner handle of the door closest to the seat has been operated, and the air circuit discharges air in the air bellows by the detection output of the detection circuit to reduce the air pressure in the air bellows. It is characterized in that it includes means for causing it to.

There is provided another detection circuit for detecting that the outer handle of the door has been operated, and the air circuit supplies air into the air bellows by a detection output of the other detection circuit, and supplies air into the air bellows. Means for increasing the pressure of the air.

[0008]

When the driver operates the inner handle of the door to get off the vehicle, it detects that the inner handle has been operated and sends a detection output to the air circuit. The air circuit reduces the air pressure in the air bellows based on the detection output, and extends the distance between the seat surface and the steering wheel.

Thus, when the driver gets off the vehicle, the thigh or the abdomen does not hit the steering wheel, and the driver can easily leave the seat.

[0010]

Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing a configuration of an embodiment of the present invention.

The embodiment of the present invention includes an air bellows 1 as a cushion material, an air circuit 2 for supplying compressed air to the air bellows 1, and a feature of the present invention. A first detection circuit 5 for detecting that the inner handle 4a has been operated is provided. The air circuit 2 discharges air in the air bellows 1 and reduces the air pressure of the air bellows 1 by the detection output of the detection circuit. A valve 6 and a second detection circuit 7 for detecting that the outer handle 4b of the door 4 has been operated are provided. The air circuit 2 supplies air to the air bellows 1 by a detection output of the second detection circuit 7. And an air tank 8 for increasing the pressure in the air bellows 1.

Next, the operation of the embodiment of the present invention thus configured will be described.

When the driver operates the inner handle 4a of the nearest door 4 to stop the vehicle and get off the vehicle, the first detection circuit 5 detects the operation, and outputs the detection output to the control device via the input / output interface. Send to 11. When receiving the detection output, the control device 11 sends a control signal for lowering the seat 3 to the electromagnetic valve 6 via the input / output interface 12. The solenoid valve 6 discharges a part of the air in the air bellows 1 to the outside for a short time in accordance with the control signal, and the seat 3
To extend the gap with the steering wheel (not shown). Thereby, the driver can easily move to the door 4 side.

When the driver who gets off the vehicle operates the outer handle 4b of the door 4 to get on, the second detection circuit 7 detects the operation and sends a detection output to the control device 11 via the input / output interface 12. I do. Upon receiving the detection output, the control device 11 sends a control signal to the solenoid valve 6 via the input / output interface 12 to prohibit air discharge, and sends a control signal to increase the air pressure in the air bellows 1.

Upon receiving the control signal, the solenoid valve 6 closes the discharge port to stop the discharge of air, opens the supply port to supply the air in the air tank 8 to the air bellows 1, and the air pressure is determined in advance. When the specified value is reached, the supply is stopped.

In this embodiment, another input / output interface
Although the description has been made assuming that the control device 11 for controlling various devices is used in combination via 13, a control unit such as a microcomputer may be provided for exclusive use.

Further, by providing a manual switch for increasing or decreasing the air pressure in the air bellows 1 on the operation panel of the driver's seat, the above-described operation can be performed and the height of the seat can be adjusted. When the height of the seat is adjusted by the manual switch,
The control device 11 stores the height, stores the height as a predetermined value until the driver is replaced and readjustment is performed, and controls the seat height according to the value.

[0018]

As described above, according to the present invention, when the driver gets off the vehicle, the seat can be automatically lowered to facilitate movement, and when the driver gets on the vehicle, the seat that has been lowered when getting off the vehicle can be obtained. There is an effect that the position can be automatically restored to a predetermined height.

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration of an embodiment of the present invention.

FIG. 2 is a diagram showing a state of a seat when a driver is in a driving posture.

FIG. 3 is a diagram showing a state of a seat when a driver's weight load is reduced.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Air bellows 2 Air circuit 3 Seat 4 Door 4a Inner handle 4b Outer handle 5 First detection circuit 6 Solenoid valve 7 Second detection circuit 8 Air tank 11 Control device 12, 13 Input / output interface

Claims (2)

(57) [Claims] 1. An automobile seat equipped with an air bellows as a cushion material and an air circuit for supplying compressed air to the air bellows, which detects that an inner handle of a door closest to the seat has been operated. A vehicle seat, comprising: a circuit; and the air circuit includes means for discharging air in the air bellows to reduce the pressure in the air bellows based on a detection output of the detection circuit. 2. An air circuit is provided with another detection circuit for detecting that an outer handle of the door is operated, and air is supplied to the air bellows to the air circuit by a detection output of the another detection circuit. 2. The vehicle seat of claim 1 including means for increasing the pressure in the bellows.