Abstract: In a lock device in which a lock device main unit is operated from an operating handle via a single interlinking cable, provisions are made so that the releasing operation of the lock device main unit by the operating handle can be accomplished with a small force, and also that switching from a locked condition to an unlocked condition can be made reliably. An operating member for performing the locking, unlocking, and releasing operations and a switching member for performing switching between the locked and unlocked conditions are interlocked by using an interlocking member provided on the switching member and a guide portion and releasing portion provided on the operating member.

Abstract: When a trunk lid is pressed down, a latch and a striker engage to hold the lid in a position for closing the trunk opening, after which a control and a drive dislocate the striker downwards through a transmission, pulling the lid into a position to completely close the trunk opening and hold the lid in that position.

Abstract: A locking lever of a door latch can be operated either manually by operating a lock knob or electrically by applying a current to an electrically operating mechanism. The turning force of the mechanism is transmitted to the lever via a first oscillatory member and second one cooperative loosely with the first member. The second member operates to shift the lever to a lock or an unlock position after it has been turned by the first member by a prescribed angle. The first member energizes a return spring, the biasing force of which returns the first member to neutral position when the current to the mechanism is interrupted. The lock knob can be operated lightly since the mechanism with the first member at the neutral position does not obstructs the knob.

Abstract: A latch body is formed, at its recessed inner side, with a pair of integral tubular members made of plastics. A latch element adapted to catch a striker set in an automobile door and a paul are rotatably mounted on the tubular members for engagement with each other. A latch returning spring is stretched between the body and the latch element. An door opening lever and a door locking lever both linked to the pawl are rotatably mounted on another pair of plastic tubular members each of which is formed on the outer side of said body in the coaxial relation with corresponding one of the first pair of the tubular members. Each of a pair of pins is inserted through the tubular members in the coaxial relation and is swaged in a base plate coupled oppositely with the body.

Abstract: A latch includes a latch body, an opening rod and a structure to connect the opening rod to the latch body. The latch body includes a latching member, a ratchet and an opening lever. The connection structure includes a shaft member connected, at the root portion thereof, to the opening lever and provided, at the free end thereof, with an elongate slip-out prevention member, an elongate rest mounted rotatably on the shaft member and a biased push plate mounted on the shaft portion for movement in the axial direction of the shaft portion. In assembling, one end portion of the opening rod is mated, at an elongate hole formed therein, with the elongate rest and slip-out prevention member. The opening rod is pushed towards the opening lever, turned by about 90.degree. and returned away from the opening lever under the biasing force exerted on the push plate.

Abstract: A latching member is formed with a recess in which a striker is to be fitted. Each of opposite wall surfaces at the entrance of the recess comprises an elastic member to prevent the occurrence of a large noise upon hit of the striker against those wall surfaces. The recess has its deep part formed to have a width not larger than the diameter of the striker, thereby preventing swing movement of the latching member relative to the striker. Further, a fully locking tooth formed on the latching member has an engagement surface to be engaged with a pawl, the engagement surface being provided with a noiseles member to prevent the occurrence of a large noise upon abutment of the fully locking tooth with the pawl.

Abstract: A lock means for doors of an automobile comprises a lock base, a ratchet which is mounted rotatably on the lock base, is provided with a full-latch claw and a half-latch claw and is biased toward the unlock establishing direction of the lock means, a hindering piece which is overlapped on the ratchet and is movable against the ratchet between an envelope position and a non-envelope position, a holding piece mounted rotatably against the lock base, biased toward the ratchet and adapted to engage with the contours of the overlapped ratchet and the hindering piece and an interconnecting means interposed between the hindering piece and the holding piece and adapted to actuate the holding piece between the envelope and the non-envelope positions.