JPS59216737A - Walk-in device for seat - Google Patents

Abstract

PURPOSE:To prevent a passenger from erroneously positioning his seat by locking the seat back of the seat to be slid forward in a falling-forward state at any position excepting the most rear portion of the seat. CONSTITUTION:A tooth part 27a and a concave part 20b are formed on the seat back arm 20 of a slide seat. An engaging locking member 17 is fitted in one end of a coupling link 35 attached to a reclining arm 26 fixed on a seat track 7a. A convex part 17a free to engage with/disengage from a concave part 20b of the seat back arm 20 is locked with the locking member 17, and interlocked with a locking device of the seat track 7a via a wire 40A. Allowing the slide seat to move forward causes the seat back to fall ahead, allowing the concave part 20b of the seat back arm 20 to engage with the convex part 17a of the locking member 17 to lock the seat back in a falling-forward position.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a walk-in device for a vehicle-width seat, and in particular, the seat baracura of a sliding seat that slides forward is locked in a forward-folded state at a position other than the rear most position. This invention relates to a seat walk-in device that prevents occupants from accidentally seating themselves.

Conventionally, in the case of a two-door vehicle such as a passenger car or a truck, when getting into the rear seat, the front passenger's seat slide seat 1 is slid forward. If this amount of sliding is large, the knee space between the sliding seat and the instrument panel will be quite narrow, but if the seat back of the sliding seat is slid in an upright position, the passenger may mistakenly think that he or she can sit down and sit down. , there was a risk that people would complain that they could not sit down because their knees would hit the instrument panel.

The present invention has been made to eliminate the drawbacks of the prior art described above, and its purpose is to move the sliding seat forward in order to get in and out of the rear seats of two-door vehicles such as passenger cars and trucks. When sliding to the rear, the seat back is locked in the forward-folding position in any position other than the rear most position, which prevents the occupant from appearing to be able to gradually sit on the sliding seat when the knee space relative to the instrument panel is extremely narrow. This is to prevent crew misunderstandings and complaints. Another eye H
``J'' is designed to improve vehicle performance by preventing occupants from sitting in places where the knee space relative to the instrument panel is extremely narrow, thereby preventing occupants from riding in such tight conditions that their knees may hit the instrument panel. The goal is to promote safety.

In short, the present invention provides a sliding seat consisting of a 7-cushion and a seat back, a seat track fixed to a seat cushion of the sliding seat and slidably fitted into a fixing member, and a seat track fixed to the seat back and fitted with teeth. and a recess sf on an extension of the toothed portion: a seat back arm formed therein, a locking member having a protrusion that can be freely engaged and detached in the recess of the seat back arm, and a locking member connected to the locking member with a wire to fix the seat back arm. The locking member is swung by the back and forth movement of the self-striped seat in front of a cam member fixed to the member, and the convex portion of the locking member is engaged and disengaged from the concave portion of the seat back arm. a seat pack locking device having a link member fixed to the fixing part; a locking claw fixed to the fixing part; and a locking pawl fixed to the seat track; It is fully equipped with a locking arm in which a rocking plate is integrally fixed to the locking claw and a locking plate that can be freely engaged and detached, and a seat track locking device is installed, so that the seatback is locked in the forward tilted state when the seatback is not in the most position. It is characterized by having the following configuration.

The present invention will be explained below based on the embodiments shown in the drawings. 1st
The vehicle shown here is a two-door vehicle 1, with a handle 2 on the right side (right side in the direction of travel) with respect to the direction of the arrow when viewed from above.
However, when a sliding seat 3 that slides in the front-back direction is installed on the left side and the passenger wants to sit in the rear seat 4, the sliding seat 3 is moved from the rearmost position to the most forward position. It is configured to be slid (walk-in type) to a so-called front most position F, and the details thereof will be explained below.

The seat walk-in device 6 according to the present invention includes a slide seat 3, a seat track 7, a seat back lock device 8, and a seat track lock device 9. The slide seat 3 includes a seat cushion 11 and a seat back. 12, and the seat back can swing back and forth relative to the seat cushion 11.

As shown in FIG. 2, the seat track 7 consists of a left seat track 7a and a right note track 7b, which are provided on the left and right in the direction of arrow A when viewed from above, and these seat tracks are fixed to the seat cushion 11. It is slidably fitted into fixing members 13 and 14 arranged on the left and right sides, and is biased in the direction of arrow B by a first tension spring 15.

The seat pack lock device 8 is attached to the notebook back arm 16.
As shown in FIG. The arm 20 and the right seat back arm 21 to 19 extend on both left and right sides of the seat back 7, respectively.

At the lower end of the left seat back arm 20, a fan-shaped tooth portion 20 is provided.
A and a recess 20b are formed on the extension of the tooth portion. Further, the left seat back arm 20 is biased to rotate counterclockwise (forward tilting direction) by a spiral spring 23 wrapped around a pivot l11122 pivotally connected to the seat track 7a, as shown in FIG. has been done. A reclining lever 24 is fixed to the pivot shaft 22, and the reclining lever is urged by a second tension spring 25 to rotate counterclockwise. An elongated hole 24a is formed in the middle of the reclining lever 24, and the elongated hole has a circular arc portion 24b centered on the pivot shaft 22 and a curved portion 24C that is curved in the next direction away from the circular arc portion. It is formed.

Further, a pin 27a implanted in a reclining arm 27 pivoted M-G on the seat track 7a by a pivot 26 is fitted into the elongated hole 24a. A toothed portion 27b that meshes with the portion 20a is formed. A grip capital 24d is fixed to the tip of the reclining lever 24 with a screw 28.

The reclining pedal 29 is the reclining lever 2
4 and extends in the opposite direction of the reclining lever with respect to the pivot 22.

A toothed portion 21a is formed into which a toothed portion 31a formed on a reclining arm 31 pivotally connected to the right seat track 7b by a pivot 30 engages. The bottle 31b installed at the tip of the reed reclining arm 31 is connected to the rotating arm 32 fixed to the pivot shaft 22.
It fits into a long hole 32a formed in the. The elongated hole is composed of a circular arc portion 32b centered on the pivot shaft 22'fc, and a hollow curved portion 32G that curves away from the circular arc portion in a direction away from the pivot shaft 22. Further, the rotary arm 32 is biased by a second tension spring 33 to rotate counterclockwise.

The locking member 17 is pivotally connected to the other end of the connecting link 35, one end of which is pivotally connected to the pivot shaft 26, by a pin 36, and a third
It is biased counterclockwise by a tension spring 37 .

One end of the locking member 17 is formed with a convex portion 17a that can be engaged with the four parts 20b of the seat back arm 200.

The link member 18 has one end connected to the seat track 7a with the pivot 3.
8, and the other end is connected to the other end of the locking member 17 by a wire 40A inserted into a cable 39A. A roller 41 is pivotally attached to the intermediate portion of the link member 18, and the roller engages with and follows a cam portion 43a of a cam member 43 fixed to the fixed member 13.

The seat track lock device 9 includes a left seat track lock device 50 and a right seat track lock device 5.
1 to 19, the left seat track lock device 50 includes a lock arm 53 fixed to a rotating shaft 52 which is pivotally connected to the left seat track 7a, and a lock arm 53 fixed to a rotating shaft 52 integrally. Consisting of a plate 54 and a lock claw 55 fixed to the identification member 13, a hole 54 formed in the lock plate 54
A protrusion 55a formed on the lock pawl 55 is fitted into the protrusion 55a to lock the left seat track 7a.

Further, the lock arm 53 is biased to rotate clockwise in FIG. 8 by a screw υ spring 56 wound around the rotation @52. The right seat track locking device 51 has a rotating shaft 58 pivotally connected to the right seat track 7b.
It consists of a lock arm 59 fixed to the rotation l11158, a lock plate 60 fixed integrally to the rotating l11158, and a lock claw 61 fixed to the fixing member 14. A protrusion 561a formed therein is fitted in to lock the right seat track 7b. The wire attachment portion 59a protruding from one end of the lock arm 59 is connected to the right seatback arm 21 by a wire 4Q13, and the tips of the lock arms 5 and 9 are connected to the tip of the lock arm 53 by a wire 40G. has been done.

And when the seat back 12 is in a position other than the rear most position,
It is configured to be locked in the forward position.

The present invention is configured as described above, and its operation will be explained below. What is shown in FIGS. 1 to 11 is the state of the 9-in-one installation M6 when the slide seat 3 is in the rear most position, and the seat back 12 is in the upright position.

From this state, in order to move the sliding seat 3 forward (in the direction of arrow A) so that the passenger can sit on the rear seat 4, first move the reclining lever 24 by hand against the spring force of the second tension spring 25. Lift it up or press down on the reclining pedal 29 with your foot to rotate the reclining lever 24 clockwise about the pivot 22i. Then, the reclining arm 27 is inserted into the elongated hole 24a via the bin 27a.
The pivot 26 rotates counterclockwise around the entire center of the pivot 26 by the curved portion 24C, and the engagement between the tooth portion 27b of the reclining arm 27 and the tooth 11520a of the seatback arm 2o is released, and the seatback arm The spring force rotates the seat back 12 in the counterclockwise direction around the pivot 22, causing the seat back 12 to fall forward, and the concave portion 20b of the seat back arm engages with the convex portion 17a of the locking member 17.
Move to a position facing the

At the same time, the right seat back arm 21 is rotated forward and the wire 40B is wound up in the direction of the arrow C as shown in the diagram ilO, and the right lock arm 59 is attached to the wire attachment portion 5.
9 a'i valve rotates counterclockwise around the rotating shaft 58, and the lock plate 60 and the lock pawl 61 are locked together. Further, due to the counterclockwise rotation of the right lock fIII 59, the left lock arm 53 is pulled in the direction of the arrow (FIG. 19) by the wire 40C, and the rotation shaft 52
The lock plate 54 and the lock pawl 55 are released from the lock plate 54 and the lock claw 55 by rotating clockwise to the entire center.

When the left and right seat tracks 7a and 7b are unlocked in this way, the slide seat 3 is moved in the direction of arrow B by the first tension spring 15. In this case, the link member 180 roller 41 falls onto the cam portion 43a of the cam member 43 to the position shown by the imaginary line, and the link member 18 rotates clockwise around the pivot 38 by a distance #, S, and then The wire 40A is loosened by that amount. Then, the locking member 17 rotates counterclockwise due to the restoring force of the third tension spring 37, and the convex portion 17a of the locking member locks into the recess 51 (20b) of the seat back arm 20, and as a result, the sliding seat 3 is the length l (approximately 30
It moves by 0 tons by the spring force of the first tension spring 15 and stops.

In this way, in the slide seat 3, the seat back 12 is locked in a tilted forward state except in the rear most position, so that the occupant will not be seated by mistake.

As a result, the occupant will no longer hit his or her knee against the instrument panel 65, improving safety.

In order to return the sliding seat 3 whose seatback 12 is locked in the front most position F to the rear most position R again, the seatback 12'f of the sliding seat 3: the first tension spring 15 Press backward against the spring force. Then, just before the rear most position, the roller 41 of the link member 18 rides on the cam part 43a of the cam member 43 and starts full operation, and at the rear most position, the link member 18 rotates counterclockwise about the pivot 38 by a distance S. , the wire 40A is pulled by that amount, the locking member 17 rotates clockwise around the pin 36, and the protrusion 117a of the locking member and the seat back arm 20
is disengaged from the recess 20b.

In this state, the entire reclining lever 24 is rotated clockwise against the spring force of the second tension spring 25, and the seat back 12 is rotated against the spring force of the spiral spring 23 against the pivot shaft 22.
When the seat back reaches the normal upright position, the reclining lever 24
When released, the reclining lever rotates counterclockwise due to the restoring force of the second tension spring 25, and at the same time, the reclining arms 27, 31 rotate clockwise, and the teeth 27b, 31a of the reclining arms rotate. The toothed portions 20a and 21a of the seatback arms 20.21 are engaged with each other, and the seatback 12 is set in a normal upright state.

At this time, the wire 40 that is pulling the right lock arm 59
13 is loosened, the lock arm 59 rotates clockwise around the rotation shaft 58, the lock plate 60 and the lock pawl 61 engage, and at the same time the left lock arm 53 rotates counterclockwise around the rotation shaft 52. Rotates, lock plate 54 and lock claw 55
and are engaged.

The seat track 7 is thereby locked by the fixing members 13 and 14.

Since the present invention is configured and operates as described above, in a two-door car, when sliding the sliding seat forward in order to get in and out of the rear seat, the seatback will not fall forward except in the rear most position. Since it is locked, it is possible to prevent the passenger from pretending to be able to sit on the sliding seat even when the knee space in relation to the instrument panel is extremely narrow.This has the effect of preventing misunderstandings from the passenger and eliminating the risk of complaints. There is. In addition, the knee space in front of the instrument panel is extremely narrow, making it impossible for passengers to sit in front of the instrument panel, so there is no chance of a passenger riding in a tight position with their knees hitting the instrument panel, which improves vehicle safety. It has the effect of improving.

[Brief explanation of drawings]

The drawings relate to embodiments of the present invention, and FIG. 1 is a seat walk-in device. A schematic side view of the two-door car in which it is installed, FIG. 2 is a schematic perspective example of the seat walk-in device, FIG. 3 is a left side view of the seat walk-in device, and FIG. 4 is the IV-It/ FIG. 5 is a partially enlarged perspective view of the structure shown in FIG. 3, FIG. 6 is a partially cutaway view of the seat walk-in device, and FIG. A partial plan view in the direction of arrows, FIG. 8 is a vertical sectional view in the direction of ■-■ arrows of the sixth factor,
Figure 9 is a vertical cross-sectional view taken from the 14th arrow in Figure 8, Figure 10 is a side view showing the mechanism on the right side of the seat walk-in device;
Figure 1 is a partial plan view taken from the X arrow in Figure 10, and Figure 12 is a partial plan view of Figure 11.
Figure 13 is a vertical cross-sectional view taken from the side of the figure.
Fig. 14 is a side view of the seat walk-in device that is applied just before the seat back locks forward, and Fig.
5IN is the π arrow plan view in Fig. 14, and Fig. 16 is the 150th
Punishment - vertical cross-sectional view in double arrow view, Figure 17 is the imaginary 1-X of Figure 16
FIG. 18 is a side view of the seat walk-in device when the seat back is locked in the front position;
Figure 19 shows the left and right seat track locking devices.
A vertical cross-sectional view in the unlocked state, Figure 20 is the first
■- in Figure 9...A cross-sectional view in the direction of the arrow, @2X diagram is ■- in Figure 19
■It is a cross-sectional view in the direction of arrows. 3 is a slide 7-to, 6 is a seat walk-in device,
7 is a seat track, 8 is a seat back lock device, 9
11 is the seat track locking device, 11 is the 7-tension, 12 is the seat back, 13° and 14 are the fixing members, respectively.
6 is a seat back arm, 17 is a locking member, 17a is a convex portion, 18 is a link member, 20 is a Takumi seat back arm,
20a is a tooth portion, 20b is a recessed portion, 21 is a right seat back arm, 43 is a cam member, 53.59 is a lock arm, 54.
60 is a lock plate, 55.61 is a lock pawl, and the holder is at the rear most position. Patent applicant Hino Motors Co., Ltd. Shiraki Metal Industry Co., Ltd. Agent Patent attorney 1) Kazuo Figure 1 Figure 2

Claims (1)

[Claims] A sliding seat consisting of a seat cushion and a seat back, a seat track slidably fitted into a fixed member fixed to the seat cushion of the sliding seat, a toothed portion fixed to the seat back, and the toothed portion. a seatback arm having a concave portion formed on an extension of the seatback arm; a locking member having a convex portion that can be freely engaged and detached from the concave portion of the seatback arm; and a cam connected to the locking member with a wire and fixed to the fixing member. A seatback comprising: a link member that is driven by the back and forth movement of the slide seat to swing the locking member and engage and disengage the convex portion of the locking member in the recess of the seat back arm. a locking device, a locking pawl fixed to the fixing member, a locking device pivotally connected to the seat track, connected to the seatback arm by a wire, swinging in conjunction with the seatback arm, and capable of being freely engaged with and detached from the locking pawl; a seat track locking device having a locking arm to which a locking plate is integrally fixed; and the seatback is configured to be locked in a forward tilted state when the seatback is in a position other than the rear most position. In equipment.