JPH0723630U - 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] A lock hole is formed in the slide rail, and a seat side locking pawl can be fitted into the locking hole to lock the seat. A protrusion is provided outside the seat use range to swing the swing arm, and the swing arm can cooperate with the reclining mechanism to unlock the seatback by the reclining mechanism.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a slide lock structure for an automobile seat, and more particularly to a mechanism 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 swing arm is supported on or near the lock claw, and the slide rail is provided with a protrusion that swings the swing arm outside the seat use range, and the swing arm cooperates with the reclining mechanism. The feature is that the seat back lock can be released by the reclining mechanism outside the seat use range.

The swing arm may be provided on the seat side so that it can be operated independently of the lock of the seat, but since it is preferable to lock the seat even outside the range of use of the seat, it is supported by the lock claw. , It is better to unlock the reclining mechanism in conjunction with the insertion of the lock claw into the lock hole. Further, the swing arm and the reclining mechanism may be linked according to the type of the reclining mechanism.For example, the swing arm is connected to the operation lever of the reclining mechanism by a linking wire, and outside the seat use range, the seat lever is operated by the operation lever. The back lock 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, when the seat is out of the seat use range, the rocking arm is swung to unlock the seat back by the reclining mechanism. It cannot be used, and the occupant can structurally know that it is out of the seat use range, and the safety can be guaranteed while driving.

[0010]

【Example】

 Hereinafter, the present invention will be described in detail based on specific examples shown in the drawings. 1 to 4 show a slide lock structure for an automobile seat according to an embodiment of the present invention. As shown in FIG. 1, a pair of left and right long slide rails 2 are provided on the rear side of the passenger compartment floor of the one-box vehicle in the front-rear direction from the front end to the rear end. The rear seat 3 of 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, the operation lever 44 is provided with a spring member (not shown) for urging the operation lever 44 in the meshing direction of the lock piece 43 and the gear portion 42.

Further, as shown in FIG. 2, the first and second seats 3 are mounted and fixed on a mounting base 5, and the mounting base 5 mutually bolts an upper base 50 and a lower base 51. 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. .

Further, as shown in FIG. 2, the lower base 51 is formed with a notch 510 in the up-down direction at substantially the center thereof, and the notch 510 accommodates a lock claw 60, and a cover is provided outside thereof. A plate 61 is provided, 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 can slide up and down by the dimension of the long groove. A coil spring 62 is stretched between the upper end bent portion of the and the lower base 51, and the lock claw 60 is urged downward.

On the bottom surface of the slide rail 2, a plurality of lock holes 20 are formed at a substantially center in the width direction with a predetermined interval in the longitudinal direction, and the lock claws 60 can be fitted into the lock holes 20. With this, the rear seat 3 can be locked at any position on the slide rail 2.

Further, as shown in FIG. 2, a substantially J-shaped unlocking operation pawl 70 is rotatably mounted around a mounting pin 71 in the upper base 50 and is engaged with the bolt 610 of the locking pawl 60. In addition, 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 a side surface of the seat cushion 30, and the slide lever 73 and the lock operating claw 70 are connected by an operating wire 74. By operating the slide lever 73, the unlock operating claw 70 is provided. The lock claw 60 is pulled up to disengage the lock claw 60 from the lock hole 20, and the rear seat 3 is unlocked.

A mounting hole 21 is formed on the bottom surface of the slide rail 2 in the vicinity of the lock hole 20 outside the seat use range B of the rear seat 3, and a projection 22 is mounted in the mounting hole 21. On the other hand, a swing arm 63 is supported by the lock claw 60, one end side of the swing arm 63 and the operation lever 44 of the reclining mechanism 4 are connected by a cooperation wire 8, and when the seat is out of the range B, the reclining mechanism 4 is used. The seat back 31 is unlocked.

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, the swing arm 63 does not swing, 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 rotated at a predetermined angle. It is locked 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 hole 20, 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 fits into the lock claw 20, but at the same time, the swing arm 63 rides on the protrusion 22 and swings to move the wire. 8, the operating lever 44 of the reclining mechanism 4 is pulled, the engagement between the lock piece 43 and the gear portion 42 of the upper bracket 41 is released, and the seat back 31 falls down without being locked. It is immediately apparent that it is out of the 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.

FIG. 5 shows a second embodiment of the present invention, in which the same reference numerals as those in FIGS. 1 to 4 designate the same or corresponding parts. In this embodiment, the reclining mechanism 4 is provided with a gear dedicated to full flat. That is, a gear plate 45 is fixed to the lower end of the upper bracket 41, and the gear plate 45 is provided with a second gear portion 46 at a full flat position in addition to the gear portion 42. On the other hand, a second lock piece 90 capable of meshing with the second gear portion 46 is provided below the gear plate 45, and the second lock piece 90 faces the second gear portion 46. An operating piece 92 for swinging is provided, the operating piece 92 is connected to a second operating lever 91, and the second operating lever 91 is connected to the second lock piece 90 and the second gear portion 46 by a coil spring 93. It is biased in the meshing direction. In the figure, 47 is a spring member for urging the operating lever 44 in the meshing direction of the lock piece 43 and the gear portion 42.

In this embodiment, when the rear seat 3 is outside the seat use range B, the seat back 31 is unlocked and can be tilted. However, when the seat back 31 is tilted rearward, The lock piece 90 meshes with the second gear portion 46, and the meshing between the second lock piece 90 and the second gear portion 46 can be released by operating the second operating lever 91 to the upper side in FIG. 5 (a). The back 31 can be locked at any angle, and the seat back 31 can be stably flattened as shown in FIG. 5 (b). To release the lock of the full flat, operate the second operating lever 91 upward in FIG. 5 (a) to release the engagement between the second lock piece 90 and the second gear portion 46, and the seat back 31 is released. You just have to wake it up.

[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 a sectional configuration diagram showing a structure of a slide rail portion of the slide lock structure.

FIG. 4 is a diagram showing a swing arm of the slide lock structure.

FIG. 5 is a schematic diagram showing a slide lock structure for a vehicle seat according to another embodiment of the present invention in a normal state and a full flat state.

[Explanation of symbols]

 2 ... Slide rail 20 ... Lock hole 22 ... Projection part 3 ... Rear seat 30 ... Seat cushion 31 ... Seat back 4 ... Reclining mechanism 44 ... Operation lever 60 ... Lock claw 63 ... Swing arm 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 a swing arm is supported at or near the lock claw,
The slide rail is provided with a protrusion that swings the swing arm outside the seat use range, and the swing arm cooperates with the reclining mechanism so that the seat back lock can be released by the reclining mechanism outside the seat use range. A slide lock structure for an automobile seat, which is characterized in that 2. The slide lock for a vehicle seat according to claim 1, wherein the swing arm is connected to an operation lever of a reclining mechanism by a cooperation wire, and the seat back is unlocked by the operation lever outside a seat use range. Construction.