Patent ID: 8590973

Claim:
A lock device for a vehicular seat, comprising: a striker fixed to a vehicle body; and a catcher disposed on the seat, the catcher catching the striker, the catcher comprising: a base plate; a cover cooperating with the base plate to form an accommodating space therebetween; a first striker receiving portion formed in each of the base plate and the cover such that the striker is permitted to move into and move out from the first striker receiving portion, the first striker receiving portion extending from a substantially intermediate position on one end surface of each of the base plate and the cover toward an inside of each of the base plate and the cover, a latch rotatably disposed within the accommodating space on one side of the first striker receiving portion through a latch shaft, the latch having a lock position with respect to the striker and an unlock position with respect to the striker, a second striker receiving portion formed in the latch such that the striker received in the first striker receiving portion is permitted to move into and move out from the second striker receiving portion, a lock plate rotatably disposed within the accommodating space on the other side of the first striker receiving portion through a lock shaft, the lock plate having a restraint position in which the lock plate restrains the latch from rotating from the lock position to the unlock position and an allowance position in which the lock plate allows the latch to rotate from the lock position to the unlock position, and a rubber bumper mounted to the first striker receiving portion formed in the base plate, the rubber bumper serving for reducing an impact that occurs when the striker is allowed to move into the first striker receiving portion, wherein the rubber bumper comprises: engaging grooves formed on both sides of the rubber bumper, the engaging grooves being engaged with side peripheries of the first striker receiving portion formed in the base plate, respectively, a recessed portion formed at one end of the rubber bumper which is opposed to a bottom surface of the first striker receiving portion formed in the base plate, the recessed portion being engaged with a bumper receiving portion formed on the bottom surface of the first striker receiving portion formed in the base plate, and restraining portions formed on the both sides of the rubber bumper at the other end of the rubber bumper which is located on a side of an opening of the first striker receiving portion formed in the base plate, the restraining portions being engageable with an outer circumferential surface of the latch shaft and an outer circumferential surface of the lock shaft, thereby restraining the rubber bumper from falling off from the first striker receiving portion formed in the base plate.