JPH0721425U - Slide lock structure for automobile seats - Google Patents

Abstract

(57) [Summary] [Purpose] When the seat is out of the seat use range, structurally it cannot be used as a seat. [Structure] The slide rail has multiple lock holes,
The seat is equipped with a lock claw that fits the two together so that the seat can be locked at any position, while the lock claw and the lock hole are set so that the amount of fit differs depending on whether the seat is used or not. Then, the lock claw and the reclining mechanism are made to cooperate with each other so that the seat back is unlocked by the reclining mechanism outside the seat use range.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a slide lock structure for a vehicle seat, and more particularly to a structure that cannot be used as a seat outside a seat use range in a one-box car or the like.

[0002]

[Prior art]

 Recently, so-called one-box vehicles, which can be used for various purposes, have been attracting attention. In such a one-box vehicle, various measures have been taken to make effective use of the interior of the vehicle, but at the same time it is required to ensure safety and the like.

[0003]

[Problems to be solved by the device]

 For example, a slide rail extends from the front end to the rear end of the rear side space, and the first and second rear seats are slidably and lockably supported on the slide rail, and the rear seat is folded and stored to be wide. It has been proposed that the seat can be set at an arbitrary position when creating a luggage compartment space or when it is fully flattened, and the structure is made more useful.

However, when the seat is used as an original seat in such a seat, the distance from the front seat, the seat belt attachment position, etc. are restricted by vehicle safety standards, etc., and the sliding range that can be used as the seat is limited. If there is a seat outside the sliding range, it is required to inform the occupant of this so that the safety can be guaranteed while driving.

In view of the above point, an object of the present invention is to provide a slide lock structure for a vehicle seat that structurally prevents the seat from being used as a seat when the seat is out of the seat use range.

[0006]

[Means for Solving the Problems]

 In view of the above, the vehicle seat slide lock structure according to the present invention allows a seat having a reclining mechanism to be slidably supported on a long slide rail extending in the front-rear direction of the vehicle body and set at any position. In the slide rail, a plurality of lock holes are formed at predetermined intervals in the longitudinal direction, and the seat has lock claws that can be fitted into the lock holes, so that the seat can be locked at any position of the slide rail. On the other hand, the lock claw and the lock hole are set so that the amount of fit is different between the seat use range and the outside of the seat, and the lock claw cooperates with the reclining mechanism to allow the seat back of the seat back to be reclined outside the seat use range. The feature is that the lock can be released.

The lock claw and the lock hole may have different fit amounts by providing a lock claw fitting restricting portion in a lock hole outside the seat use range or range, but considering the manufacturing process, etc., the seat use range or It is advisable to form out-of-range lock holes to a large size so that the amount of insertion is different. Further, the lock claw and the reclining mechanism may be linked according to the type of the reclining mechanism.For example, the lock claw is connected to the operation lever of the reclining mechanism by a cooperating wire, and the seat back is operated by the operation lever outside the seat use range. Can be unlocked.

[0008]

[Action and effect of the device]

 According to the present invention, the lock claws of the seat are fitted into the plurality of lock holes of the slide rail, so that the seat can be locked when the seat is used, but the seat can be locked even when the seat is folded or fully flat. It can be locked and the seat can be locked at any position on the slide rail.

Further, since the amount of engagement of the lock claw and the lock hole is different depending on whether the seat is used or not, the seat back is unlocked by the reclining mechanism outside the seat used range. When the vehicle is out of the seat use range, it cannot be used as a seat, and the occupant can structurally know that it is out of the seat use range, and can guarantee safety while driving.

[0010]

【Example】

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

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

In the reclining mechanism 4, as shown in FIG. 2, a lower bracket 40 is fixed to the seat cushion 30, and an upper bracket 41 is fixed to the seat back 31, and a gear portion 42 is formed on the upper bracket 41. A lock piece 43 having a gear portion capable of meshing with the gear portion 42 is swingably attached to the lock piece 43, and an operating lever 44 for operating the lock piece 43 is provided. The seat back 31 can be tilted by releasing the meshing of the gear portion 42.

Further, as shown in FIG. 2, the first and second rear seats 3 are mounted and fixed on a mounting base 5, and the mounting base 5 connects the upper base 50 and the lower base 51 to each other by 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 quadrangular closed cross section, and the roller 52 is accommodated in the slide rail 2 so that the first and second seats 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 in the vertical direction at a substantially central portion thereof, and a lock claw 60 is formed in the cutout 510. A cover plate 61 is provided on the outside thereof, and a bolt 610 is inserted through the long groove of the cover plate 61 and the bolt hole of the lock claw 60 so that the lock claw 60 slides up and down by the dimension of the long groove. And a coil spring 62 is stretched between the upper end bent portion of the lock claw 60 and the lower base 51 so that the lock claw 60 is biased downward.

On the bottom surface of the slide rail 2, a plurality of lock holes 20 and 21 are formed at a substantially 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 any position on the slide rail 2.

Further, as shown in FIGS. 2 and 3, a substantially J-shaped unlocking claw 70 is rotatably mounted around a mounting pin 71 in the upper base 50 so that the bolt of the locking claw 60 can be secured. 610, and the unlocking claw 70 is biased by the coil spring 72 in the pulling direction of the locking claw 60.

A slide lever 73 is provided on the side surface of the seat cushion 30, and the slide lever 73 and the unlock operation pawl 70 are connected by an operation wire 74. By operating the slide lever 73, the unlock operation pawl is provided. 70 pulls up the lock claw 60 to disengage the lock claw 60 from the lock holes 20 and 21, so that the lock of the rear seat 3 is released.

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

Next, the usage method will be described. When the rear seat 3 is in the seat use range A, the lock claw 60 is biased by the coil spring 62 and fits into the lock hole 20, and the rear seat 3 is locked in that position. At this time, since the amount of fitting 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 meshed, and the seat back 31 is locked at a predetermined angle. It is available and 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 claw 70 pulls up the lock claw 60 to disengage it from the lock hole 20, whereby the rear seat 3 is slid. The lock of 3 is released. If the slide lever 73 is continuously operated, the lock claw 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 outside the seat use range B and locked, the lock claw 60 is fitted into the large lock claw 21 this time, and the fitted amount becomes deep. Then, the lock claw 60 pulls the operation lever 44 of the reclining mechanism 4 through the cooperation wire 8, the engagement between the lock piece 43 and the gear portion 42 of the upper bracket 41 is released, and the seatback 31 is not locked. Since the vehicle falls, the occupant immediately knows that the rear seat 3 is outside the seat use range B.

Accordingly, the occupant can return the rear seat 3 to the seat use range A and lock the rear seat 3 during traveling, thereby ensuring safety during traveling. Although the seat back 31 is not locked outside the seat use range B, the rear seat 3 itself is locked by the slide rail 2, so the rear seat 3 can be folded and stored to create a large luggage space, or a full flat. It can be used without any problems when converting.

[Brief description of drawings]

FIG. 1 is a schematic view showing a vehicle 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 configuration diagram 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 claw 8 ... Cooperative wire

Claims (2)

[Scope of utility model registration request] 1. A seat having a reclining mechanism,
In a vehicle seat that is slidably supported by a long slide rail extending in the longitudinal direction of the vehicle body and can be set at any position, a plurality of lock holes are provided in the slide rail at predetermined intervals in the longitudinal direction. The seat is provided with a lock claw that can be fitted into the lock hole so that the seat can be locked at any position of the slide rail, while the lock claw and the lock hole are the seat use range and range of the seat. The slide lock of the automobile seat is characterized in that the amount of fitting is set differently outside and the lock 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 so that the lock claw fits deeply outside the seat use range, while the lock claw is connected to the operation lever of the reclining mechanism by the cooperation wire, and outside the seat use range. The slide lock structure for a vehicle seat according to claim 1, wherein the lock of the seat back is released by the operation lever.