Abstract: A locking mechanism for armrest which comprises an arcuate slot, a pair of upper and lower catching means each being formed at the upper and lower ends of the slot, respectively, stopper pin slidably inserted through the arcuate slot, and an elastic means mounted on the stopper pin. With the vertical rotation of the armrest, the stopper pin is displaced along the arcuate slot and securely caught in either of said upper and lower catching means, by virtue of the resilient force of the elastic means, which brings the armrest into a locked state in either of a use position and a non-use position.

Abstract: An arrangement for protecting a seat operation lever against its being entangled with or caught by a seat belt in a vehicle seat. A protector is provided on the lateral side of the seat such that it is disposed above the forward end of the operation lever or around the base portion of the operation lever. In this arrangement, the protector serves to avoid the possibility of the operation lever being entangled with or caught by the seat belt.