JP2602899Y2 - Slide lock structure for automotive seats - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slide lock structure for a vehicle seat, and more particularly to a structure in which a one-box vehicle or the like cannot be used as a seat outside a seat use range.

[0002]

2. Description of the Related Art Recently, attention has been paid to so-called one-box vehicles that can be used for various purposes. In such a one-box vehicle, various devices have been devised so that the passenger compartment can be effectively used, but it is also required to ensure safety and the like.

[0003]

For example, a slide rail extends from a front end to a rear end of a rear space, and first and second rear seats are slidably and lockably supported on the slide rail. When the rear seat is folded and stored to create a large luggage space or when fully flattened, the seat can be set at an arbitrary position, and a structure that enhances usability has been proposed.

However, when the seat is used as an original seat in such a seat, the distance from the front seat, the seat belt mounting position, and the like are regulated by vehicle safety standards and the like, and the sliding range that can be used as the seat is limited. In addition, when there is a seat outside the sliding range, it is required that the occupant be informed of this and the safety during traveling or the like can be guaranteed.

In view of the above, an object of the present invention is to provide a slide lock structure for an automobile seat that is structurally incapable of being used as a seat when the seat is out of the seat usage range.

[0006]

SUMMARY OF THE INVENTION Accordingly, a slide lock structure for a vehicle seat according to the present invention is provided in which a seat having a reclining mechanism is slidably supported on a long slide rail extending in the longitudinal direction of the vehicle body at an arbitrary position. A plurality of lock holes are formed in the slide rail at predetermined intervals in the longitudinal direction, and the seat is provided with a lock claw that can be fitted into the lock hole, and the seat is provided with a slide rail. The lock claw and the lock hole are set so that the fitting amount differs between the seat use range and the outside of the seat while the lock claw and the lock hole are out of the seat use range by cooperating with the reclining mechanism. Is characterized in that the seat back can be unlocked by the reclining mechanism.

The lock claw and the lock hole may be provided with a lock claw insertion restricting portion in the lock hole outside or within the seat use range, so that the lock claw and the lock hole may be inserted in different amounts.
It is preferable that the lock hole outside or within the seat use range is formed to have a large size so that the fitting amount is different. The locking claw and the reclining mechanism may be linked in accordance with the type of the reclining mechanism.For example, the locking claw may be connected to the operating lever of the reclining mechanism with a linking wire. The lock can be released.

[0008]

According to the present invention, the locking claw of the seat is fitted into each of the plurality of locking holes of the slide rail, so that the seat can be locked when the seat is used, but when the seat is folded or full. The seat can be locked even when flat, and the seat can be locked at any position on the slide rail.

Further, the fitting amount of the lock claw and the lock hole is made different between the seat use range and the outside of the seat, and the seat back is unlocked by the reclining mechanism outside the seat use range. If it is out of the range of use, it cannot be used as a seat, and the occupant can structurally know that it is out of the range of use of the seat, so that safety during traveling or the like can be guaranteed.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to specific examples shown in the drawings. 1 to 6 show a slide lock structure for a vehicle seat according to an embodiment of the present invention. FIG.
, A pair of left and right long slide rails 2 are provided on the rear side 1 on the passenger compartment floor of the one-box vehicle in the front-rear direction from the front end to the rear end.
A second rear seat 3 is supported.

The first and second rear seats 3 are composed of a seat cushion 30 and a seat back 31, as shown in FIGS. 2 and 3, and a reclining mechanism 4 is provided between the seat cushion 30 and the seat back 31. Is provided.

In the reclining mechanism 4, a lower bracket 40 is provided on the seat cushion 30 as shown in FIG.
The upper bracket 41 is fixed to the seat back 31,
A gear portion 42 is formed on the upper bracket 41, and a lock piece 43 having a gear portion that can mesh with the gear portion 42 is swingably attached to the lower bracket 40, and an operation lever 44 for operating the lock piece 43 is provided. The engagement between the lock piece 43 and the gear portion 42 is released by operating the operation lever 44 so that the seat back 31 can be tilted.

As shown in FIG. 2, the first and second rear seats 3 are placed on and fixed to a mounting base 5, and the mounting base 5 connects an upper base 50 and a lower base 51 to each other with bolts. Both ends of the lower base 51 in the vehicle width direction are bent downward, and rollers 52 are rotatably attached to the front and rear ends of the bent portion.

The slide rail 2 has a substantially square closed cross section. The roller 52 is housed in the slide rail 2 so that the first and second sheets 3 can slide back and forth.

As shown in FIG. 2, FIG. 3, FIG. 5, and FIG. 6, a cutout 510 is formed in the lower base 51 at substantially the center in the vertical direction, and the lock claw 60 is housed in the cutout 510. A cover plate 61 is provided outside the cover plate 61, and the long groove and the lock claw 60
A bolt 610 is inserted through the bolt hole of the lock claw 60.
Is provided so as to be able to slide up and down by the length of the long groove, and a coil spring 62 is stretched between the upper bent portion of the lock claw 60 and the lower base 51 so that the lock claw 60 is urged downward. I have.

A plurality of lock holes 20 and 21 are formed in the bottom surface of the slide rail 2 substantially at the center in the width direction at predetermined intervals in the longitudinal direction, and the lock claws 60 are fitted into the lock holes 20 and 21. This allows the rear seat 3 to be locked at an arbitrary position on the slide rail 2.

As shown in FIGS. 2 and 3, a substantially J-shaped unlocking operation claw 70 is rotatably mounted around the mounting pin 71 in the upper base 50 so that the locking claw 6 is provided.
0 bolt 610, and the unlock operation pawl 70
Are urged by the coil spring 72 in the pulling direction of the lock claw 60.

A slide lever 73 is provided on a side surface of the seat cushion 30, and the slide lever 73 and the unlocking operation claw 70 are connected by an operation wire 74. When the lock pawl 60 is pulled up, the lock pawl 60 is disengaged from the lock holes 20 and 21 so that the lock of the rear seat 3 is released.

The lock holes 20 and 21 are formed as two small holes in the seat use range A of the rear seat 3, and are formed as one large hole outside the seat use range B.
The lower end of 0 is formed in a bifurcated shape, and the lock pawl 60 and the lock holes 20 and 21 are set so as to have a small fitting amount in the seat use range A of the rear seat 3 and a large fitting amount in the outside use range B of the seat. FIG. 4 conceptually shows the relationship. Further, the bent portion at the upper end of the lock claw 60 and the operation lever 44 of the reclining mechanism 4 are connected by the cooperation wire 8, and the seat back 31 by the reclining mechanism 4 is used outside the seat use range B.
Is unlocked.

Next, the method of use will be described. When the rear seat 3 is in the seat use range A, the lock claw 60 is urged by the coil spring 62 to fit into the lock hole 20, and the rear seat 3 is locked at that position. At this time,
Since the fitting amount of the lock claw 60 is small, the operation lever 44 of the reclining mechanism 4 is not pulled, the lock piece 43 and the gear portion 42 of the upper bracket 41 are engaged, and the seat back 31 is locked at a predetermined angle. Can be used as a seat.

When the rear seat 3 is slid, when the slide lever 73 is operated against the spring force of the coil spring 72, the unlocking operation pawl 70 pulls up the lock pawl 60 and disengages from the lock hole 20. 3 is released. If the slide lever 73 is continuously operated, the lock pawl 60 does not fit into the lock holes 20 and 21, so that the rear seat 3 can be slid back and forth to a desired position on the slide rail 2.

On the other hand, when the rear seat 3 is set out of the seat use range B and locked, the locking claw 60 is fitted into the large locking claw 21 this time, and the fitting amount becomes deep. Then
The locking claw 60 pulls the operating lever 44 of the reclining mechanism 4 via the linking wire 8, and the engagement between the locking piece 43 and the gear portion 42 of the upper bracket 41 is released, and the seat back 31 falls down without being locked. Can immediately recognize that the rear seat 3 is outside the seat use range B.

Therefore, the occupant returns the rear seat 3 to the seat use range A during traveling and locks it, thereby ensuring safety during traveling. Further, the seat back 31 is not locked outside the seat use range B, but the rear seat 3 itself is locked to the slide rail 2, so that the rear seat 3 is folded and stored to create a large luggage space or to be fully flattened. It can be used without any problems.

[Brief description of the drawings]

FIG. 1 is a schematic view showing an automobile seat having a slide lock structure according to an embodiment of the present invention.

FIG. 2 is a schematic configuration diagram showing the slide lock structure.

FIG. 3 is an exploded perspective view showing a main part of the slide lock structure.

FIG. 4 is a conceptual diagram for explaining the slide lock structure.

FIG. 5 is a side view showing the slide lock structure.

FIG. 6 is a front view showing the slide lock structure.

[Explanation of symbols]

 2. Slide rail 20 Lock hole 21 Lock hole 3 Rear seat 30 Seat cushion 31 Seat back 4. Reclining mechanism 44 Operation lever 60 Lock pawl 8. Linkage wire

──────────────────────────────────────────────────続 き Continued on the front page (56) References JP-A-4-26828 (JP, U) JP-A-4-48033 (JP, U) (58) Fields surveyed (Int.Cl. ⁷ , DB name) B60N 2/00-2/54

Claims (2)

(57) [Scope of request for utility model registration] 1. A seat having a reclining mechanism,
In a vehicle seat, which can be slidably supported on a long slide rail extending in the front-rear direction of the vehicle body and can be set at an arbitrary position, a plurality of lock holes are provided on the slide rail at predetermined intervals in a longitudinal direction. The seat is provided with a lock claw that can be fitted into a lock hole so that the seat can be locked at any position on the slide rail, while the lock claw and the lock hole define a seat use range and a range of the seat. A slide lock for a vehicle seat, wherein the fitting amount is set to be different between outside and the locking claw is linked with the reclining mechanism so that the seat back can be unlocked by the reclining mechanism outside the seat use range. Construction. 2. The lock hole is formed such that the lock claw is deeply fitted outside the range of use of the seat, while the lock claw is connected to an operation lever of a reclining mechanism by a cooperation wire. 2. The slide lock structure for an automobile seat according to claim 1, wherein the lock of the seat back is released by the operation lever.