JPH0249072Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a locking device for a folding seat in a vehicle.

[Prior Art] For example, many rear seats for both cargo and passenger use are foldable in order to effectively utilize the floor surface when loading luggage. However, the locking device of the folding seat protrudes considerably from the seat leg, which obstructs the use of the cargo space and gives an unnatural appearance, so a compact locking device has been desired.

Figure 6 shows the conventional example, 1a, 2a
1 is a lock base, and the hatched portion at the upper end of the lock bases 1a and 2a is an anchor base portion 1 extending to secure a seat belt anchor plate.
It is b. The hatched portion in the center of the lock base 2a is a lock bracket base portion 2b extending to fix the lock base 2a to the lower end of the rear leg of the seat (not shown). 3a is a lock handle, 4a is a lock ratchet, 5a is a lock pole, and 10a is a coil spring which is stretched between the upper ends of the lock ratchet 4a and the lock pole 5a and is constantly biased in the approach direction. 1
1a is a lock ratchet pin, 12a is a lock pole pin, and a lock device for the folding seat is constructed by covering the outer peripheral surfaces of the lock bases 1a and 2a with a lock base cover (not shown).

[Problems to be Solved by the Invention] In view of the above-mentioned problems, the object of this invention is to make the locking device more compact by integrating and sharing functionally related parts of the locking device.

[Means for solving the problem] The folding seat locking device of this invention is as follows:
A pair of left and right lock bases of the lock device are integrally molded with a lock cover from a synthetic resin material, and a ratchet of the lock device is placed inside the lock base.
At the same time, a lock mounting bracket protruding from the lower end of the seat leg is held in the gap between the mating parts of the pair of left and right lock bases, and the ratchet and the pole are respectively attached from the outside of the lock base. It is rotatably supported on the lock mounting bracket by a tightening bolt inserted therethrough.

[Example] An example of this invention will be described with reference to FIGS. 1 to 5. 1 to 3 show the structure of the locking device, and FIGS. 4 and 5 explain the guide stopper that positions each component of the locking device.

1 and 2 are a pair of left and right lock bases integrally molded with a lock cover from a synthetic resin material, 3 is a lock handle, 4 is a lock ratchet, 5 is a lock pole that engages with the lock ratchet 4, and 10
6 is a coil spring that is stretched between the upper ends of the lock ratchet 4 and the lock pole 5 via pins 8 and 9 and is constantly biased in the approach direction; 6 is a lock mounting bracket provided at the lower end of the leg of the folding seat; 7 is a seatbelt anchor plate (14 is also an anchor plate, which is additionally provided in the case of a two-person seat; if a seatbelt is not worn, an appropriate spacer is used in place of the anchor plates 7 and 14). 11 is a lock ratchet bolt, 12 is a lock pole bolt, and 13 is a small screw for temporarily fixing the lock.

Guide stoppers 21, 22, . . . shown in FIGS. 4 and 5 are provided on the inner surfaces of the lock bases 1, 2.
28 are integrally formed at predetermined positions. In FIG.
Reference numerals 7 and 28 form rotation loci on which the lock poles are rotatably arranged. Although FIG. 4 shows a case in which the lock ratchet is disposed in a released state with respect to the striker 30 provided on the floor, it may also be disposed in an engaged state, in which case the tip of the engaging portion of the lock ratchet 4 is connected to the guide stopper. 26
The rotational position is regulated by contacting with. In FIG.
and 23 serve as a guide when inserting the lock mounting bracket 6 into the joint gap 15 of the lock bases 1 and 2 (see Fig. 3), and also serve as a guide for inserting the lock mounting bracket 6 into the hole for inserting the lock ratchet bolt 11 and the lock pole bolt 12. A contact surface is formed so that the lock base 1 and the lock base 2 can be clamped together with the lock ratchet 4 and the lock pawl 5 into the joint gap 15 of the lock bases 1 and 2.

In FIG. 3, the lock ratchet 4 is inserted between the lock mounting bracket 6 and the seat belt anchor plate 7, which are inserted into the joint gap 15 of the lock bases 1 and 2, and the lock bases 1 and 2. It is rotatably supported by a locking ratchet bolt 11 inserted from the outside. Also, lock pole 5 is lock base 1, 2.
It can be freely rotated by a lock mounting bracket 6, a lock handle 3, etc., inserted into a gap 15 in the mating part, and a lock pole bolt 12, which is inserted between the lock bases 1 and 2 and penetrated from the outside of the lock bases 1 and 2. Supported by

As shown in FIG. 2, the seat lock device of this invention is constructed by inserting and clamping the lock mounting bracket 6 provided at the lower end of the legs of the folding seat into the gap 15 in the mating part of the lock bases 1 and 2. The lock ratchet bolt 11 and the lock pawl bolt 12 are inserted from the outside to attach the lock pole bolt. The seat lock device is assembled temporarily using small screws 13 for temporary fixing, and then the lock mounting bracket 6 provided at the lower end of the seat leg is inserted into the gap 15 at the mating part of the lock bases 1 and 2, and the lock is secured from the outside of the lock base. Either the ratchet bolt 11 and the lock pawl bolt 12 are inserted through and supported, or the lock bases 1 and 2 are respectively clamped from both sides of the lock mounting bracket, and the ratchet bolt 11 and the lock pole bolt 12 are inserted from the outside of the lock base 1 and 2 in the same manner as described above. lock pole bolt 1
2 to support it. In the latter case, the small screw 13 for temporary fixing is not necessary.

[Effects of the invention] The folding seat locking device of this invention has the following features:
A pair of left and right lock bases of the lock device are integrally molded with a lock cover from a synthetic resin material, and a ratchet of the lock device is placed inside the lock base.
At the same time, a lock mounting bracket protruding from the lower end of the seat leg is held in the gap between the mating parts of the pair of left and right lock bases, and the ratchet and the pole are respectively attached from the outside of the lock base. Since it is rotatably supported on the lock mounting bracket by the inserted tightening bolt, the following effects can be achieved.

1. Since it is an integrally molded synthetic resin product that serves as both the conventional lock base and lock cover, the number of parts, weight, and cost are reduced, and the shape can be made smaller and more compact.

2. By tightening the lock base and lock mounting bracket together with the lock ratchet bolt and lock pole bolt, the above-mentioned 1.
The effect of the term can be further enhanced.

3. Since the lock mounting bracket is inserted into the gap in the mating part of the lock base, there is no need to extend the support part of the lock base outward as in the conventional case, and the protrusion of the support part is eliminated, which improves the appearance. Improves appearance.

Furthermore, in the embodiment of this invention, by forming the guide stopper on the inner surface of the lock base, the work of assembling the ratchet, pole, etc. becomes extremely easy, and the number of man-hours is greatly reduced. Further, the positions of the lock mounting brackets and the tightening bolt holes in the seat belt anchor plate (or spacer) are automatically regulated, making positioning extremely easy.

Furthermore, by sharing the seatbelt anchor bolt with the locking ratchet bolt, the tensile force of the seatbelt is directly transmitted from the ratchet to the floor surface through the striker, so no tension is applied to other components, so the locking device There is no need to increase the overall strength.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of the seat lock device of the present invention, Fig. 2 is a perspective view showing the assembled state of the seat lock device shown in Fig. 1, and Fig. 3 is a sectional view taken along the - line in Fig. 2. , FIG. 4 is a sectional view taken along the - line in FIG. 3, and FIG.
FIG. 6 is an exploded perspective view of a conventional seat lock device. 1, 2... Lock base, 4... Lock bracket, 5... Lock pole, 6... Lock mounting bracket, 10... Coil spring, 11...
Locking pole bolt, 12... Locking pole bolt.

Claims (1)

[Scope of utility model registration request] In a locking device provided at the lower end of a leg of a folding seat for fixing the seat by locking to a striker provided on the floor, a pair of left and right lock bases of the locking device are integrally molded with a lock cover from a synthetic resin material, and A ratchet of the lock device and a pole are removably disposed inside the lock base, and a lock mounting bracket protruding from the lower end of the seat leg is held in the gap between the mating parts of the pair of left and right lock bases; A seat lock device in which the ratchet and the pawl are rotatably supported on the lock mounting bracket by tightening bolts inserted from the outside of the lock base.