JPH02256530A - Seat device for vehicle - Google Patents

Abstract

PURPOSE:To control the slide and reclining of a front seat through one switch operation by installing a walk-in switch and a return switch and installing the front side and rear side setting switches, etc. CONSTITUTION:A front seat 1 is selected between a front side set state where the body 1 is at an intermediate position and a seat back 4 is at a rearward inclined position, walk-in state where the body 1' is at a front edge position and the seat back 4' is at a rearward inclined position, and a rear side set state where the body 1'' is at a rear edge position and the seat back 4'' is at a rearward inclined position. In this case, three states are set by operating a walk-in switch 11 and a return switch 12 which are installed onto the seat back 4 and controlling a slide mechanism X and a reclining mechanism Y. Further, accompanied with the turning-ON operations of the front side and rear side setting switches 13 and 14, the operations of the mechanisms X and Y are restricted under the prescribed conditions.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a vehicle seat device.

(Prior art) In general, in two-door cars, that is, cars with doors only on the front seat side, when a passenger gets in and out of the rear seat, the seatback of the front seat is tilted forward to ensure a space for getting in and out. However, in order to make it easier to get in and out of the rear seat, a so-called walk-in mechanism is provided in which the entire front seat slides forward at the same time as the seat back of the front seat tilts forward.

On the other hand, in recent years in automobiles, as users have become more luxury-oriented, so-called power seats have been developed that use motors to drive the front seat back and forth movement and seat back tilting (so-called reclining). It is also being installed mainly on two-door cars.

Incidentally, a known example of this type of power seat is as shown in, for example, Japanese Unexamined Patent Publication No. 58-76336.

(Problems to be Solved by the Invention) By the way, in conventional power seats, a switch for seat sliding operation and a switch for reclining are provided separately.

For this reason, when getting in and out of the rear seat in a two-door car equipped with a power seat, the slide switch and reclining switch must be operated separately in sequence, making the walk-in operation complicated and difficult to operate quickly. was there.

Therefore, the present invention aims to improve seat operability in a two-door vehicle by making it possible to easily operate the front seat when getting in and out of the rear seat with a single switch operation while ensuring the safety of front seat occupants. This was done for the purpose of achieving this goal.

(Means for Solving the Problem) In the present invention, as a means for solving the problem, a seat cushion is attached to the vehicle body so as to be movable in the front and back directions and is driven by a slide motor, and For vehicles equipped with a front seat consisting of a seat back that is attached so as to be tiltable in the front and rear directions via a hinge mechanism and is tilted and driven by a reclining motor, and a rear seat that is arranged at a position behind the front seat. A walk-in switch for positioning the front seat at the frontmost position in a sliding direction and tilting the seatback most forward in a reclining direction to place the front seat in a walk-in state, and the closing operation thereof. A return switch is provided which slides the front seat rearward from the walk-in state and tilts the seat back backward to bring the passenger into a ready state in which the passenger can sit, and detects the seating of the passenger in the front seat. a front side seating switch for detecting the seating of an occupant in the rear seat;
an operation regulating means for disabling the operation of the walk-in switch and the return switch when a passenger is seated on the front seat; and a slide that limits the amount of rearward sliding of the front seat when a passenger is seated on the rear seat. The present invention is characterized by comprising a limiting means.

(Function) Since the present invention has such a configuration, (1) when a passenger gets in and out of the rear seat, the front seat can be placed in the walk-in state by simply operating the walk-in switch, and a space for getting in and out of the rear seat can be secured; ,
In addition, when a passenger is seated in the front seat, the front seat can be set from the walk-in state to the ready state by simply operating the return switch. (2) When the passenger is seated in the front seat, the walk-in switch and return switch The operation is disabled, and an effect such as that inadvertent seat operation while seated in the front seat is reliably prevented can be obtained.

(Effects of the Invention) Therefore, according to the vehicle seat device of the present invention, (1)
Seat operation when a passenger enters or exits the front seat or rear seat requires only one operation of either the walk-in switch or the return switch, improving seat operability. Since it is impossible to operate the seat in a state where
safety for the front seat occupant is ensured;
(3) When a person is sitting in the rear seat, the amount of rearward sliding of the front seat is limited, so sufficient leg space is secured for the person sitting in the rear seat, improving comfort, etc. The effect will be obtained.

(Embodiments) Hereinafter, preferred embodiments of the present invention will be described with reference to FIGS. 1 to 5.

FIG. 1 shows a two-door car seat device Z according to an embodiment of the present invention, and in the same figure, reference numeral l indicates a front seat consisting of a seat cushion 3 and a seat back 4;
is a rear seat consisting of a seat cushion 9 and a seat back IO.

The front seat l has a sliding mechanism and a reclining mechanism, as will be described later.The front seat l has a sliding mechanism and a reclining mechanism, centered on the intermediate position shown by the solid line in FIG. The seatback 4 can be slid between the forward tilting position (code 4') shown by the chain line in the figure, the rearward tilting position shown by the solid line, and the rearmost tilting position (not shown). ).

The front seat 1 can take three basic configurations from the viewpoints of convenience when getting on and off the rear seat 2 and comfort for the person sitting on the rear seat.

Specifically, as shown by the solid line in FIG. 1, the front seat l is in the intermediate position and the seat back 4 is in the rearward position, and the front seat is in the front position, and the front seat seat is in the forwardmost position as shown by the chain line. in the walk-in state with the seat back 4' in the most forward tilted position, and the front seat l
There are three modes including a rear seated state where # is at the rearmost position and the seat back 4 is at a rearward tilted position. This is a mode in which a person gets on and off the walk-in seat 2, and a large space for getting on and off is ensured between the front seat 1 and the rear seat 2. The front seat state is the seating position of the front seat 1 when a person is seated on the carrier seat 2, and a relatively wide leg space is secured between the front seat 1 and the rear seat 2. Furthermore, the rear seated state is the seating position of the front seat 1 when no person is seated on the front seat 2, and in this case, sufficient leg space for the person seated on the front seat 2 is ensured.

These three basic aspects are the walk-in switch 11 and the return switch provided on the upper part of the seat back 4 of the front seat 1 facing the outside of the vehicle! By operating the switch 2, the slide mechanism X and reclining mechanism Y (described later) are activated.
(see Fig. 2) can be set or switched by controlling the operation.

Furthermore, the above basic configuration is just for the front seat! Or when a person gets on or off the rear seat 2. Therefore, when a person is seated on the front seat 1 and arbitrarily adjusts the sliding position of the front seat 1 or the tilting position of the seat back 4, for example, the console section or the seat cushion 3
It is necessary to separately operate a slide adjustment switch and a reclining adjustment switch (not shown) provided at appropriate locations.

FIG. 2 shows an example of a Hitotsubashi construction of a slide mechanism X and a reclining mechanism Y provided in the front seat 1.

The slide mechanism X includes a pair of left and right guide rails 7.7 that slidably support the seat cushion 3 in the longitudinal direction relative to the vehicle body, a pair of left and right screw rod drive mechanisms 16.16, and this drive mechanism 16. ', 16 via an interlocking rod 15. When the walk-in switch 11 and the return switch 12 are operated, the slide motor 8 selectively positions the front seat l at the seat positions stored in advance, that is, the intermediate position, the frontmost position, and the rearmost position. When the slide adjustment switch is operated, the front seat 1 is positioned at an arbitrary position according to the amount of operation (time).

The reclining mechanism Y includes a knuckle mechanism 5 that connects the seat cushion 3 and the seat back 4 in a tiltable manner, with a reclining motor 6 attached thereto, and the seed pack 4 is set at a predetermined tilting position by the driving force of the reclining motor 6. It is something to do. The operation of this reclining motor 6 is similar to that of the sliding motor 8.
In addition to being set to the backward tilting position and the forward tilting position by operating the walk-in switch 11 and the return switch 12, the seat back 4 can also be set to any position depending on the amount (time) of operation when the reclining adjustment switch is operated. Positioned to position.

On the other hand, in the seat cushion 3 of the front seat 1, there is a front side seating switch 13 for detecting whether or not a person is seated on the front seat 1.
A rear seat switch 14 is provided in each of the seat cushions 9 to detect whether or not a person is seated on the rear seat 2. As will be detailed later, when this front side seating switch 13 is turned ON by a person sitting on the front seat 1, the front seat 1 will not operate at all even if the walk-in switch 11 is operated. The circuit is configured. Additionally, the rear seating switch 14 is turned on when a person sits on the rear seat 2.
When activated, the front seat 1 only moves from the walk-in state to the front seated state, but does not move to the rear seated state (that is, the rearward slide m of the front seat 1 is restricted).

Next, the actual operating state of the front seat 1 will be explained with reference to FIG. 1 and FIGS. 3 to 5.

(A) When a person gets on or off the rear seat 2, in this case, the front seat l, which is set to the front seating state or the rear seating state, is brought to the walk-in state by operating the walk-in switch 11 only once. but,
The modes include usage mode 1 (when a person gets on the rear seat 2) and usage mode 2 (when a person gets off from the rear seat 2) shown in FIG. The operation control at this time will be explained with reference to the flowchart shown in FIG.

First, when getting on or off the rear seat 2, press the walk-in switch 11 from outside the vehicle or from the rear seat 2 side.
(step Rυ) When the walk-in switch 11 is turned on, for example, when a person is seated in the front seat l (that is, the front seat switch 13 is turned on), the corresponding Regardless of the operation of the walk-in switch 11, the front seat l does not operate at all (step Rt).That is, when the walk-in switch 11 is operated erroneously, its operation is invalidated.

Therefore, in this case, the safety of the person sitting on the front seat 1 is ensured.

On the other hand, when no one is sitting in the front seat l (i.e.
When the front seat switch 13 is in the OFF state (step R,), the reclining motor 6 and the sliding motor 8 are activated to bring the front seat l into the walk-in state.
(step RS), and when the walk-in state is reached, the operation of these motors 6.8 is stopped. Thereby, a large space for getting on and off is secured between the front seat 1 and the rear seat 2.

In this case, the walk-in switch 2 is
Since it is provided on the upper part of the seat back 4 on the outside of the vehicle, for example, when operating it from outside the vehicle, it can be operated in the same posture as when the door is opened. Therefore, the operability of the switch is improved compared to, for example, a case where the walk-in switch 11 is provided in a console section, where the switch operation must be performed with the upper half of the body inside the vehicle from outside the vehicle.

(B) When a person gets on the front seat 1 When the front seat 1 is in the walk-in state, there are two modes when the front seat 1 is set to the front seating state or the rear seating state and a person gets on the front seat 1. is possible. That is, in FIG. 3, there is a case where a person gets on the front seat l while a person is already on the rear seat 2, as shown in usage mode ■, and a case where a person gets on the front seat l, as shown in usage mode ■. There are cases where a person gets on the front seat l when there is no front seat l. Of these, when a person is already seated in the rear seat 2, the front seat 1 is stopped at an intermediate position to provide sufficient leg space for this person, but if no one is seated, the front seat 1 is stopped at the last position. It is lowered to the extreme position to ensure leg space for those seated in the front seats.

The control at this time will be explained below based on the flowchart shown in FIG.

When the return switch 12 is turned ON (step S,), it is first determined whether a person is sitting on the front seat 1 (step S,). The front seat l does not operate at all. That is, safety is ensured when the return switch 12 is erroneously operated.

On the other hand, when no person is sitting on the front seat 1, that is, when the return switch 12 is not operated erroneously but properly, it is then determined whether or not a person is sitting on the rear seat 2 (step S3). . Then, when no one is sitting, there is no need to secure the leg space for the carrier seat 2, so the front seat 1 is lowered to the rearmost position (step s4°S).

Furthermore, when a person is sitting on the rear seat 2, the front seat 1 is lowered only to the intermediate position in order to secure the leg space (step Sa).

S7).

In this way, the front seat l is set to 1 of the return switch 12.
The position will be automatically set to the intermediate position or the rear end position with one operation.

In this embodiment, the reclining switch l! Both the switch 11 and the return switch 12 are provided at the upper part of the outer side of the seatback 4 of the front seat l, but in other embodiments of the present invention, for example, these switches 11
．． 12, not on the front seat L side (on the passenger compartment side of the vehicle body and in the middle of the front sort I tray sheet 2, and in a position that is easily accessible from outside the vehicle (for example, on a vehicle with a center pillar, on the center pillar) In this case, each switch 11, 12 can be easily operated from the outside of the vehicle or from the rear seat 2 side, as in the case of this embodiment. , its operability is good.

[Brief explanation of drawings]

FIG. 1 is a conceptual diagram of a vehicle seat device according to an embodiment of the present invention, and FIG. 2 is a perspective view showing a slide mechanism and a reclining mechanism provided in the front seat shown in FIG. 1.
Figure 3 is an explanatory diagram of the operation of the seat device shown in Figure 1;
5 and 5 are control flowcharts thereof. 1...Front seat 2...Rear seat 3.9...Seat cushion 4, lO...Seat back 5...Knuckle mechanism 6...Motor for reclining 7...Guide rail 8...Slide motor 11...Walk-in switch 12...Return switch 13...Front side seating seat I4...Rear side seating seat 15... Interlocking rod 16... Drive mechanism: Front seat: Rear seat: Seat cushion: Seat pack: Knuckle mechanism: Reclining motor: Guide rail: Slide motor: Walk-in switch: Return switch: Front side # Seat switch: Rear seat switch: Interlocking rod: Drive groove

Claims (1)

[Claims] 1. A seat cushion that is attached to the vehicle body so as to be movable in the longitudinal direction and is driven by a sliding motor, and a seat cushion that is attached to the seat cushion via a hinge mechanism so as to be tiltable in the longitudinal direction and is driven to tilt by a reclining motor. A vehicle seat device comprising a front seat consisting of a seat back and a rear seat disposed at a rear position of the front seat, the front seat being positioned at the frontmost position in a sliding direction by an insertion operation of the front seat. and a walk-in switch that tilts the seat back as far forward as possible in a reclining direction to place the front seat in a walk-in state; A return switch is provided to bring the passenger into a riding state in which the passenger can be seated, and a front side seating switch detects the seating of the passenger on the front seat, and a rear side seating switch detects the seating of the passenger on the rear seat; an operation regulating means for disabling the walk-in switch and the return switch when a passenger is seated on the front seat; and a slide for restricting the rearward sliding amount of the front seat when a passenger is seated on the rear seat. A vehicle seat device comprising: a restriction means.