A transmission mechanism of handle lock set used for driving a latch to perform extension/retraction action includes a driving plate and a transmission plate. The driving plate includes a supporting portion having a transmission surface with an arc surface and a blocking surface with a flat surface. The driving plate is rotated to make the supporting portion swinging between a first position and a second position. The transmission plate further includes a protrusion having a contact surface. The transmission surface contacts the contact surface and pushes the protrusion to prevent the driving plate from being unavailable due to transmission dead spot occurrence when the supporting portion locates at the first position. The blocking surface contacts the contact surface of the protrusion to prevent the driving plate from over rotation for avoiding unavailable return when the supporting portion of the driving plate locates at the second position.

A transmission mechanism of handle lock set used for driving a latch to perform extension/retraction action includes a driving plate and a transmission plate. The driving plate includes a supporting portion having a transmission surface with an arc surface and a blocking surface with a flat surface. The driving plate is rotated to make the supporting portion swinging between a first position and a second position. The transmission plate further includes a protrusion having a contact surface. The transmission surface contacts the contact surface and pushes the protrusion to prevent the driving plate from being unavailable due to transmission dead spot occurrence when the supporting portion locates at the first position. The blocking surface contacts the contact surface of the protrusion to prevent the driving plate from over rotation for avoiding unavailable return when the supporting portion of the driving plate locates at the second position.

A lock device includes a base attached to a lid, a knob having a grip portion movably supported on a front side of the base and an arm portion projecting rearward with respect to the grip portion, a slider slidably supported in a rear part of the base so as to move slidingly by being pushed by the arm portion in response to a movement of the knob, a first rod and a second rod slidably supported by a part of the base located in front of the slider in a vertically arranged manner so as to be engaged by and disengaged from a pair of corresponding engaging holes, and a power transmission mechanism provided between the slider and the first rod and the second rod so that the first rod and the second rod are slidingly moved in response to a movement of the slider.

A lock device includes a base attached to a lid, a knob having a grip portion movably supported on a front side of the base and an arm portion projecting rearward with respect to the grip portion, a slider slidably supported in a rear part of the base so as to move slidingly by being pushed by the arm portion in response to a movement of the knob, a first rod and a second rod slidably supported by a part of the base located in front of the slider in a vertically arranged manner so as to be engaged by and disengaged from a pair of corresponding engaging holes, and a power transmission mechanism provided between the slider and the first rod and the second rod so that the first rod and the second rod are slidingly moved in response to a movement of the slider.

The present invention relates to a closed force transmission device in which an insertion depth of a latch bolt inserted into a latch bolt insertion groove can be adjusted to improve safety and components are simplified to allow for ease of assembly and to improve durability. The present invention also relates to a safety door lock using the device. The closed force transmission device of the present invention includes: a cylindrical body housing of which both sides are opened to penetrate a door; a main body slidably arranged within the body housing such that the main body moves in a straight line direction by the force applied from an external source, the main body having at least one tilt surface and a main body movement space formed orthogonally to the straight movement direction in a portion corresponding to the tilt surface.

The present invention relates to a closed force transmission device in which an insertion depth of a latch bolt inserted into a latch bolt insertion groove can be adjusted to improve safety and components are simplified to allow for ease of assembly and to improve durability. The present invention also relates to a safety door lock using the device. The closed force transmission device of the present invention includes: a cylindrical body housing of which both sides are opened to penetrate a door; a main body slidably arranged within the body housing such that the main body moves in a straight line direction by the force applied from an external source, the main body having at least one tilt surface and a main body movement space formed orthogonally to the straight movement direction in a portion corresponding to the tilt surface.

A handle assembly is provided for use on storage compartment doors of a vehicle. The assembly includes inner and outer housings residing on opposite sides of the door. The handle assembly plunger resides on the inside of the door, rather than between the outside and inside door skins. An exterior handle can be grasped from either side for moving the plunger from an extended latched position to a retracted unlatched position for opening the door. An interior egress handle is provided to open the door from inside the compartment, as a safety feature. A key cylinder on the outer housing allows the handle assembly to be locked to preclude accidental or unauthorized opening of the door. The handle assembly allows the door to be opened by electric remote power and to be closed by slam action.

A door handle assembly for use with a door is provided with a base plate, a door handle having a working end pivotally connected to the base plate and a free end opposite of the working end configured for manipulation by an operator. An adapter plate mounted on the working end of the door handle and a cam lever are also included in the present door handle assembly. A securable end of the cam lever is affixable to the adapter plate, and a free end of the cam lever is configured for engagement with a cam, for activating a door latch assembly.

A door handle assembly for use with a door is provided with a base plate, a door handle having a working end pivotally connected to the base plate and a free end opposite of the working end configured for manipulation by an operator. An adapter plate mounted on the working end of the door handle and a cam lever are also included in the present door handle assembly. A securable end of the cam lever is affixable to the adapter plate, and a free end of the cam lever is configured for engagement with a cam, for activating a door latch assembly.

A dual action latch, having a latch handle, an elongate bolt, a cam, a latch housing, and a biasing device, for installation on one side of door. The latch handle includes a lifting portion and a lever arm. The latch housing has a lever arm aperture through which the lever arm of the latch handle passes and a bolt guide for slidably receiving the elongate bolt. The latch handle is movably attached to the latch housing. With the latch handle moved, the lever arm withdraws the elongate bolt into the latch housing. Independently, when the cam is rotated by a separate handle on the other side the door, the cam plate likewise withdraws the elongate bolt into the latch housing.