JPH05319153A - Seat device of vehicle - Google Patents

Abstract

PURPOSE:To secure a leg space of a rider seated on a rear seat right behind a front seat in a vehicle to which a seat device to move the front seat backward at the time of carrying out opening operation of a front door. CONSTITUTION:In the case when there exists a rider seated on a rear seat 20 right behind a front seat 18 at the time when opening operation of a front door 12 is carried out, a seat sensor 26 provided inside of the rear seat 20 outputs a rider detection signal by eay of detecting existence of the rider. Thereafter, a control unit 24 provided inside of the front seat 18 receives the rider detection signal and prohibits the front seat 18 from moving backward.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle seat device.

[0002]

2. Description of the Related Art Conventionally, a vehicle seat device, particularly a door opening operation detecting means for detecting an opening operation of either the left or right front door, and a seat moving means for moving the front seat on the front door side to the rear side. A seat movement control means for controlling the seat moving means so that the front seat on the front door side moves rearward when the door opening operation detecting means detects the opening operation of the front door. As a seat device, Japanese Patent Laid-Open No.
As described in JP-A-128731, the engine is turned off and the ignition key is left inserted at the Lock position of the ignition switch by associating the opening operation of the front door with the key operation of the ignition key. It is known that when one of the front doors is opened, the front seat on the front door side is moved rearward.

[0003]

However, in the above-described vehicle seat device, the presence or absence of an occupant directly behind the front seat is not taken into consideration.
When an operation of opening either the left or right front door is performed and the front seat on the front door side is moved rearward, for example, if an occupant is seated on the rear seat just behind the front seat, There is a problem that the leg space is narrowed.

The present invention has been made in view of the above, and when one of the left and right front doors is opened based on the presence / absence of an occupant directly behind the front seat, the front door side is opened. The purpose is to control the movement of the front seat to the rear.

[0005]

In order to achieve the above object, the invention according to claim 1 is such that, when an opening operation is performed on either the left or right front door, the occupant is located directly behind the front seat on the front door side. Is present, the front seat is prohibited from moving rearward.

Specifically, the solution means taken by the invention of claim 1 is a door opening operation detecting means for detecting an opening operation of either the left or right front door, and a seat for moving the front seat on the front door side rearward. A vehicle seat device comprising a moving means and a seat movement control means for controlling the seat moving means so that the front seat moves rearward when the door opening operation detecting means detects an opening operation of the front door. As an object, an occupant detection means that outputs an occupant detection signal when detecting the presence of an occupant directly behind the front seat, and prohibits the front seat from moving backward when receiving the occupant detection signal from the occupant detection means. The sheet movement prohibiting means is provided.

Further, the invention of claim 2 is to detect the presence of an occupant directly behind the front seat by using a seat sensor in the invention of claim 1, and more specifically,
In addition to the configuration of claim 1, the occupant detection means is a seat sensor that outputs an occupant detection signal when detecting the presence of an occupant seated in a rear seat directly behind the front seat.

[0008]

According to the structure of the invention of claim 1, when an occupant is located right behind the front seat on the front door side when the opening operation of either the left or right front door is performed, the occupant detection means is Since the presence of an occupant is detected and the occupant detection signal is output, the movement prohibiting means prohibits the front seat from moving backward in response to the occupant detection signal. On the other hand, when the occupant is not directly behind the front seat on the side of the front door when the opening operation is performed on either the left or right side, for example, when the occupant is directly behind the other front seat. However, since the occupant detection means does not detect the presence of the occupant directly behind the front seat on the front door side where the opening operation is performed, the movement prohibiting means does not prohibit the movement of the front door. The seat moving means is controlled so that the front seat of the vehicle moves rearward.

According to the structure of the second aspect of the present invention, when the occupant is seated on the rear seat just behind the front seat on the front door side when the operation for opening the left or right front door is performed, , The seat sensor outputs the occupant detection signal by detecting the presence of the occupant,
Since the occupant detection signal prohibits the rearward movement of the front seat, the leg space of the occupant seated on the rear seat can be secured just behind the front seat.

[0010]

First, a vehicle to which a seat device according to an embodiment of the present invention is applied will be described with reference to the drawings.

FIG. 1 shows a vehicle 10 to which the seat device according to the above-described embodiment is applied. In FIG.
A right front door 12 is provided on the front right side, and a left front door is provided on the front left side although not shown. A handle 15 is provided at the right front end of the vehicle interior 14 of the vehicle 10, and an ignition switch 16 is provided on the right side of the handle 15.
The right front seat 18 is provided on the right side of the front part of the vehicle 4 and the left front seat (not shown) is provided on the left side thereof, and the rear seat 20 is provided on the rear part of the vehicle compartment 14. There is.

Next, a seat device for the right front seat 18 which is the driver's seat of the vehicle 10 will be described with reference to the drawings. Although not described, the same applies to the seat device for the left front seat, which is the passenger seat of the vehicle 10.

In FIG. 1, a door switch 21 as a door opening operation detecting means for detecting an opening operation of the right front door 12 is provided behind the right front door 12, and the right front seat 18 has a door switch 21. A seat slide switch 22 is provided on the right side, a slide motor 23 as a seat moving means for moving the right front seat 18 backward is provided inside, and a control as a seat movement control means and a seat movement prohibiting means is also provided inside. A unit 24 is provided, and inside the rear seat 20, seat sensors 26 as occupant detection means are provided at the right portion, the central portion, and the left portion, respectively.

The seat device for the right front seat 18 of the vehicle 10 is a door switch 2 as described above.
1, seat slide switch 22 and slide motor 2
3, a control unit 24, and a seat sensor 26.

FIG. 2 shows the electrical relationship of the control unit 24 in the seat device of the vehicle 10 as described above. In FIG. 2, the ignition switch 16 is O
The control unit 24 has an N position, an Acc position, and a Lock position, and outputs ON signal α1 to the control unit 24 at the ON position, Acc signal α2 at the Acc position, and Lock signal α3 at the Lock position. Output. Further, when the door switch 21 detects the opening operation of the right front door 12, it outputs a door opening signal β to the control unit 24. The seat sensor 26 includes a right seat sensor 26a located on the right side of the rear seat 20, a central seat sensor 26b located at the center of the rear seat 20, and a rear seat 2.
0 and a left seat sensor 26c located on the left of the rear seat 20, the right seat sensor 26a outputs a right occupant detection signal γ1 when the presence of an occupant seated on the right of the rear seat 20 is detected. When the sensor 26b detects the presence of an occupant seated in the center of the rear seat 20, the center seat occupant detection signal γ2 is output. When the left seat sensor 26c detects the presence of an occupant seated in the left part of the rear seat 20, the left seat sensor 26c detects the left seat occupant. The passenger detection signal γ3 is output to the control unit 24, respectively. When the slide motor 23 receives the control signal δ from the control unit 24, the slide motor 23 is driven to move the right front seat 18 rearward. When the control unit 24 receives the Acc signal α2 or the Lock signal α3 from the ignition switch 16 and the door open signal β from the door switch 21,
Further, the right occupant detection signal γ1 and the central occupant detection signal γ
When at least one occupant detection signal out of the two occupant detection signals 2 is input, the output of the control signal δ is prohibited, while the right occupant detection signal γ1 and the center occupant detection signal γ2 are not output. If the occupant detection signal is also not input, the control signal δ is output to the sliding motor 23. The seat slide switch 22 is used when the right front seat 18 is manually operated, and when the manual operation signal ε is output to the control unit 24, the control unit 24 outputs the control signal δ to the slide motor 23. , Slide motor 23
Is driven to move the right front seat 18 rearward.

Further, the rearward movement processing of the right front seat 18 by the seat device of the vehicle 10 as described above will be described with reference to the drawings.

FIG. 3 shows the flow of the rearward movement processing of the right front seat 18 in the control unit 24 of the seat device of the vehicle 10. As shown in FIG. This is a process of determining whether or not it is a position. If it is a position other than the ON position, that is, the Acc position or the Lock position, the process proceeds to step S2, while if it is the ON position, the ignition switch 16 turns Acc. The process of step S1 is repeated until the position or the Lock position is reached. The process of step S2 is a process of determining whether or not the opening operation of the right front door 12 is performed. When the opening operation is performed, the process proceeds to step S3, while the opening operation is not performed. In this case, the process returns to step S1 and steps S1 and S2 are performed until both steps S1 and S2 are determined to be YES.
The process of is repeated. Step S3 is the right front seat 1
8 is a process for determining whether or not there is an occupant seated in the rear seat 20 directly behind the right front seat 1.
When there is an occupant directly behind 8, that is, the control unit 24 receives from the seat sensor 26 at least one occupant detection signal of the two occupant detection signals of the right occupant detection signal γ1 and the central occupant detection signal γ2. If there is no occupant directly behind the right front seat 18, that is, if there is no occupant directly behind the right front seat 18, that is, the control unit 24 sends the right occupant detection signal γ1 and the central occupant detection signal γ2 from the seat sensor 26. If no occupant detection signal is received, the process proceeds to step S5. In the process of step S4, the control unit 24, as the seat movement prohibiting means, outputs at least one occupant detection signal from the two occupant detection signals of the right occupant detection signal γ1 and the central occupant detection signal γ2 from the seat sensor 26. This is a process of receiving the right front seat 18 and prohibiting the right front seat 18 from moving backward.
The control unit 24 is a process for controlling the sliding motor 23 so that the right front seat 18 moves rearward as a seat movement control means.

Here, the ignition switch 16 is set to A
Right front door 12 when in cc position or Lock position
When the opening operation is performed, the determinations in step S1 and step S2 are both YES, and the process proceeds to step S3. In step S3, the right front seat 1
If there is an occupant seated in the rear seat 20 directly behind 8, the determination is YES and the process proceeds to step S4. In step S4, the control unit 24 causes the right occupant detection signal γ1 from the seat sensor 26 and The right front seat 18 is prohibited from moving backward in response to at least one occupant detection signal of the two occupant detection signals of the central portion occupant detection signal γ2. Therefore, the leg space of the occupant sitting on the rear seat 20 can be secured just behind the right front seat 18.

On the other hand, in step S3, when there is no occupant seated on the rear seat 20 directly behind the right front seat 18, for example, when there is an occupant seated on the left side of the rear seat 20 (ie, Even if the control unit 24 receives the left occupant detection signal γ3 from the seat sensor 26), the determination is NO and the process moves to step S5. In step S5, the control unit 24 causes the right front seat 18 to move backward. The slide motor 23 is controlled to move to.

[0020]

As described above, according to the vehicle seat apparatus of the first aspect of the present invention, when the opening operation of either the left or right front door is performed, it is directly behind the front seat on the front door side. When there is an occupant, the rearward movement of the front seat can be prohibited, while when there is no occupant, the front seat can be moved rearward.

As described above, based on the presence or absence of an occupant directly behind the front seat, when the opening operation of either the left or right front door is performed, the control for moving the front seat on the front door side rearward is performed. Can be done.

According to the vehicle seat device of the second aspect of the invention, when the opening operation of either the left or right front door is performed, the occupant is seated on the rear seat directly behind the front seat on the front door side. When the vehicle is running, the rearward movement of the front seat is prohibited, so that the leg space of the occupant sitting on the rear seat can be secured.

[Brief description of drawings]

FIG. 1 is a perspective view showing a vehicle to which a seat device according to an embodiment of the present invention is applied.

FIG. 2 is a block diagram showing an electrical relationship of a control unit in the vehicle seat device.

FIG. 3 is a flowchart showing a processing flow of the seat device of the vehicle.

[Explanation of symbols]

12 right front door 18 right front seat 20 rear seat 21 door switch (door opening operation detecting means) 23 sliding motor (seat moving means) 24 control unit (seat movement controlling means and seat movement inhibiting means) 26 seat sensor (passenger detecting means) ) 26a right seat sensor 26b center seat sensor 26c left seat sensor

Claims (2)

[Claims] 1. A door opening operation detecting means for detecting an opening operation of either the left or right front door, a seat moving means for moving a front seat on the front door side rearward, and the door opening operation detecting means for the front. A seat device for a vehicle, comprising: a seat movement control means for controlling the seat moving means so that the front seat moves rearward when an opening operation of a door is detected, wherein the presence of an occupant directly behind the front seat is detected. An occupant detection unit that outputs an occupant detection signal when detected, and a seat movement prohibition unit that prohibits the front seat from moving rearward when the occupant detection signal from the occupant detection unit is received. Vehicle seat device. 2. The vehicle according to claim 1, wherein the occupant detecting means is a seat sensor that outputs an occupant detection signal when detecting the presence of an occupant seated in a rear seat directly behind the front seat. Seat device.