JPS63162347A - Seat for automobile - Google Patents

Abstract

PURPOSE:To improve the convenience quality of a seat for its boarding and alighting, by constituting the seat so that the seat, while it moves backward, retracts to the inner in the direction of a car width if the seat is pressed rearward after a seat bottom is unlocked from a slide base in a condition that a door is opened. CONSTITUTION:When the driver alights from a car, if a seat is pressed rearward in a condition that an unlock lever is controlled to be lifted with a door opened, a slide plate 3 is locked by a slide lock mechanism (not shown) being held with no movement. While a guide plate 5, arranged on the slide plate 3, tends to be moved rearward because a lock of the guide plate 5 with the slide plate 3 by a lock pin 24 and a stopper lever 25 is released. Here link levers 10, 11, whose guide pins 17, 18 are guided along circular arc-shaped guide grooves 15, 16, cause the guide plate 5 accordingly a seat bottom, while it moves rearward, to be turned to an inner side in the direction of a car width for the door.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an automobile seat, and particularly to an improved automobile seat that allows a passenger to easily get on and off the seat when the door is opened.

[Prior Art] Recently, a car seat has been developed that allows the seat itself to rotate outward by a predetermined angle when the door is opened, and has been put to practical use especially in small cars where it is difficult to get in and out of the car. .

However, since the above-mentioned rotary car seat simply rotates the car seat around its axis, if it is rotated carelessly, the car seat may hit the door frame or even not hit the door frame. There is a problem in that the front end corner of the door protrudes from the door opening to the outside of the vehicle body, causing trouble in opening and closing the door.

For this reason, when the door is opened, it may be possible to slide the car seat backwards and then rotate the car seat, but in that case, the distance between the side of the seat and the car body Since there is almost no rotation angle, there is a problem that the rotation angle is restricted and it is not very useful for getting on and off the vehicle.

[Object of the Invention] An object of the present invention is to provide an automobile seat that can be moved to the optimal position for passengers to get on and off without interfering with the door or door frame.

[Configuration of the Invention] Therefore, the present invention provides a slide base that is slidable integrally with an upper rail that slides along a lower rail supported on the vehicle body side, and a slide base that is releasably locked and supported on the slide base. a seat bottom, a lock operation means for unlocking the seat bottom from the slide base, and a lock operation means for unlocking the seat bottom from the slide base; The present invention provides an automobile seat characterized by comprising a guide means for retracting the seat inward in the width direction and a guide means for retracting the seat.

[Effects of the Invention] According to the present invention, when the seat is pushed rearward after unlocking the slide base of the seat bottom with the door open, the seat moves backward and inward in the vehicle width direction. Since the seat is evacuated, the seat can be rotated backwards without being obstructed by the door or door frame, allowing the occupant to exit the vehicle smoothly. This means that the next time you get on the car, you can sit down smoothly in the same condition as when you got off. Therefore, the ease of getting in and out of the automobile seat can be significantly improved.

[Embodiments] Hereinafter, embodiments of the present invention will be specifically described with reference to the accompanying drawings.

As shown in FIGS. 1 and 2, the movement and displacement mechanism of an automobile seat is shown in a pair of left and right upper rails that are slidably guided by a pair of left and right lower rails 1ρ and Ir fixed on the vehicle body floor (not shown). On 2ρ, 2r,
Pass the rectangular slide plate 3 and attach it to the upper rail 2.
g, 2r, and a guide plate 5 having substantially the same shape as the slide plate 3 is integrally attached and fixed to the bottom surface of the bottom frame 4 of the seat bottom (not shown).

As shown in FIG. 2 for the right lower rail, the slide lock plates 6Q and 6r supported along the inner edges of the lower rails 1N2 and 2r are attached to the slide lock plates 6Q and 6r supported along the inner edges of each upper frame 2 (2 and 2r). Lock mechanism 7
By engaging the lock claws of the slide lock mechanism 7 with the lock holes provided in the slide lock plate 6r (inside), the sliding direction is locked, and the lock claws are removed from each lock hole. This allows the seat to slide forward and backward.

Figure 3? To clearly show the relationship between the slide plate 3 and the guide plate 5, there is a link lever It on the lower surface side of the slide plate 3, which has one end hinged with hinge pins 8 and 9 near the inner side 3a in the vehicle width direction. . Connect the other end of the link lever 11.12 to the guide pin 1 through the link lever 11.
It is connected to the guide plate 5 by 7°18.

Further, a third arc-shaped guide groove 19 is provided near the inner edge 3a of the slide plate 3, and a third guide groove 19 is provided in the guide groove 9 to protrude downward from the guide plate 5 in a corresponding manner. A guide pin 21 is fitted.

These three arcuate guide grooves 15, 16, and 19 are as follows:
They are formed to have the same curvature although their centers are different, and when the guide plate 5 is displaced relative to the slide plate 3, the guide pins 17 that are fitted respectively
, 18, 2] along each trajectory,
The guide plate 5 can be guided stably without wobbling.

Further, locking pins 22a, 22b, 22c, and 22d are provided upright at the four corners of the slide plate 3, and correspondingly, engagement hooks 23a are provided at the four corners of the lower surface of the guide plate 5. , 23b, 23c, 2:1 are fixedly attached. In this case, the characteristic feature is that the engagement directions of the engagement hooks 23a to 23d with the locking pins 22a to 22d are set to be different from each other, so that the guide plate 5 is not placed on the slide plate 3. When the wheels are completely overlapped, the locking force acts against forces in all directions.

Further, another locking pin 24 is provided upright between the two front and rear locking pins 22b and 22d on the outer edge 3b side of the slide plate 3. For this locking pin 24 and the outer rear locking pin 22d, a locking lever 25 having two locking hook portions 25a and 25b in different directions is hinged at its intermediate portion on the lower surface of the guide plate 5. The locking hook portion 25a is provided during operation.
is engaged with the retaining lock pin 24, and the guide plate 5 is
While the guide plate 5 is locked and held in a superimposed state on the slide plate 3, when getting on and off the guide plate 5 by sliding it away from the slide plate 3, the other locking hook part 25b is used to lock the locking pin 22d. The guide plate 5 is locked and held in the retracted position by hooking.

Note that the locking of the locking lever 25 can be released using the locking lever 25.
A pin 26 erected on a part of the locking hook portion 25a of the guide plate 5 is made to protrude upward from a long groove 27 provided in the guide plate 5, and the inner cable 2 of the double cable (see FIG. 1 28) is attached to this pin 26. This is done by connecting the two tips and pulling this inch cable 29. In this case, although not specifically shown, the locking lever 25 is always urged in the locking direction by a suitable return spring.

The other end of the inner cable 29, not shown in FIGS. 1 and 2, is connected to a rotating end 31a of a lock release lever 31, and when the operating portion 31b of the lock release lever 31 is pulled.
The outer is held fixed at both ends by twisting.
By pulling the inch cable 29 relative to the cable 28', the lock lever 25 can be rotated clockwise around the hinge to release the lock.

The above-mentioned lock release lever 31 is shown in FIG.

As shown in FIG. 6, with the door 40 closed, the operation part 31b is fitted into the recess 42 previously provided in the inner panel 41 of the door 40, and after getting into the vehicle, the door 40 is closed.
In the closed state, it is preferable to ensure safety by preventing the lock release lever 31 from being operated carelessly.

Further, as shown in FIG. 7, the side wall 4 of the bottom frame 4
A may be provided with a lock pin 45 operated by a solenoid device 44 to lock and hold the lock release lever 3I. In that case, a control circuit 46 is provided for the solenoid device 44, and this control circuit 46 includes an on/off signal of an ignition key (not shown) and a door switch (not shown) that detects the opening/closing of the door. The solenoid device 44 is demagnetized and the lock pin 45 is deenergized only when the ignition key is operated to the OFF position and the door is opened.
The lock release lever 31 may be retracted from the lock release lever 31 so that the lock release lever 31 can be operated to ensure safety.

Next, the operation of the seat mechanism will be explained.

Now, when driving a car with a passenger seated on the seat, the guide plate 5 connected to the seat bottom is locked and held overlapping the slide plate 3, as shown in FIGS. 1 and 2. ing. That is, the locking pins 22a to 22d on the slide plate 3 are connected to the coupling hooks 23a to 23d of the guide plate 5, respectively, and the other locking pin 24 is connected to one hook portion of the locking lever 25. It is locked by 25a.

Therefore, in this state, the guide plate 5 and the slide plate 3 are completely integrated, and when the seat is slid, the slide plate 3 moves to the upper rail 20. ．． At the same time as the lower rails 1r and 2r are slid relative to the lower rails 1r and 1r, the guide plate 5 and the seat bottom to which it is connected are slid as they are.

Next, when you finish driving and exit the vehicle, open the door 40, pull up the lock release lever 31, and push the seat backwards.The slide plate 3 is locked by the slide lock mechanism 7. While the guide plate 5 is held immovably, the guide plate 5 is unlocked from the slide plate 3 and tends to be moved rearward.

In that case, as shown in FIG.
2 is guided with the guide pins I 7 and 18 on the free end side being regulated by arc-shaped guide grooves 15 and 16, respectively. Therefore, the guide plate 5, and therefore the seat bottom, are rotated inward in the vehicle width direction with respect to the door 40 while moving rearward. Therefore, the door-side corner portion 5A on the front side of the vehicle body of the guide plate 5 does not protrude toward the door 40 side, and the outer side edge 5A of the slide plate 3
b, each guide pin 17.
18 and 21 are abutted at the rear ends of the respective guide grooves 15, 16 and 19, so that they are stopped in an outwardly open orientation in a retracted state.

When the lock release lever 31 is released in this state, the other hook portion 25b of the locking lever 25 is locked in that position by the locking pin 22d, and the occupant can ride the vehicle smoothly.

Even when the door is closed after exiting the vehicle, the guide plate 5 remains in the position for getting on and off, and the next time the door is opened and the vehicle is boarded, the seat position is maintained in a state that makes it easy to get on and off. In this state, when the lock release lever 31 is pulled up again and the seat is moved forward, the guide plates 1 and 5 are moved again to the slide plate by the opposite operation to that described above. If the guide plate 5 is returned to the operating position overlapping with the slide plate 3 and the lock release lever 31 is released in that state, the guide plate 5 is locked to the slide plate 3, and normal sliding operation becomes possible from then on.

[Brief explanation of the drawing]

1 is an explanatory plan view showing a seat displacement mechanism according to an embodiment of the present invention, FIG. 2 is a side view of the seat displacement mechanism, FIG. 3 is an exploded perspective view of essential parts of the seat displacement mechanism, and FIG. 4 FIG. 5 is an explanatory plan view similar to FIG. 1 for showing the movement of the seat when getting on and off; FIG. FIG. 6 is an explanatory plan view and a sectional view of an essential part showing the safety structure for the lock release lever, respectively, and FIG. 7 is an explanatory front view of an important part showing the locking mechanism of the unlock lever. 3...Slide plate, 5...Guide plate, 8.9...Hinge pin, 11.12...Link lever, 15.16...Guide groove, 17.18...Guide pin, 25. ...Latching lever, 31...Lock release lever,

Claims (1)

[Claims] (1) A slide base that can slide integrally with the upper rail that slides along the lower rail supported on the vehicle body side, a seat bottom that is releasably locked and supported on the slide base, and a slide base that supports the seat bottom. When the seat is pushed rearward with the seat bottom unlocked, the seat bottom is retracted inward in the width direction of the vehicle relative to the vehicle door relative to the slide base, and the seat is moved backwards. An automobile seat characterized in that it is equipped with a guide means for causing the vehicle seat to move.