Latch actuating device
AssigneeHmi USA, Inc.
InventorDaniel A. Matre
Life of this patent
Estimating the term…
Abstract
The present invention is directed to a latch actuating device that includes a handle and a base. The handle has a cavity that houses a lockset, a drive cam, and a driven cam. The drive cam has a protrusion that is removably received within a locking receptacle in the base so as to permit and restrict rotation of the handle with respect to the base. The drive cam causes the driven cam to translate along a rotational axis of the drive cam when the drive cam is rotated by the lockset, thus effectuating the insertion and retraction of the protrusion with respect to the locking receptacle.
Claims19
A latch actuating device comprising:
- a handle comprising a body extending between a first end of the handle and a second end of the handle, the body of the handle having an outer surface and an inner surface;
- a recessed portion extending inwardly from the outer surface of the body at a second end of the handle and extending inwardly from the inner surface of the body;
- a lockset housed within the handle, the lockset having a rotatable tail;
- a drive cam housed within the handle, the drive cam configured to receive and be rotated by the tail;
- a driven cam housed within the handle, the driven cam having a protrusion;
- a biasing element that biases the driven cam toward the drive cam;
- and
- a base that receives a portion of the handle such that the handle is rotatable with respect to the base, the base having a locking receptacle for receiving the protrusion;
- wherein the driven cam translates along a rotational axis of the tail when the drive cam is rotated by the tail in a first direction so as to removably insert the protrusion into the locking receptacle to restrict rotation of the handle with respect to the base.
A lockable actuator having a locked position and an unlocked position, the actuator comprising:
- a handle having a cavity within a body;
- a recessed portion extending radially inwardly from an outer surface of the body, and extending radially inwardly from an inner surface of the body;
- a lockset housed within the cavity, the lockset having a rotatable tail;
- a rotatable drive cam coupled to the rotatable tail and housed within the cavity, wherein the drive cam includes a first ramp and a diametrically opposed second ramp, each ramp defining a pinnacle disposed between a first inclined surface and a second inclined surface;
- a driven cam coupled to the drive cam and housed within the cavity, the driven cam having a protrusion, wherein the driven cam includes a first ramp and a diametrically opposed second ramp, each ramp defining a pinnacle disposed between a first inclined surface and a second inclined surface;
- a base that receives a portion of the handle, the base having a stop and a locking receptacle;
- wherein the recessed portion restricts rotational movement of the driven cam with respect to the handle;
- wherein the recessed portion cooperates with the stop to limit rotational movement of the handle with respect to the base;
- wherein the locked position is effectuated by rotating the tail in a first direction to move the driven cam along a rotational axis of the tail and insert the protrusion into the locking receptacle of the base, thereby restricting rotational movement of the handle with respect to the base;
- and
- wherein the unlocked position is effectuated by rotating the tall in a second direction that is opposite the first direction to move the driven cam along a rotational axis of the tail and remove the protrusion from the locking receptacle.
A latch actuating device comprising:
- a handle comprising a body extending between a first end of the handle and a second end of the handle, the body of the handle having an outer surface and an inner surface;
- a recessed portion extending inwardly from the outer surface of the body at a second end of the handle, and extending inwardly from the inner surface of the body;
- a lockset housed within the handle, the lockset having a rotatable tail;
- a driven cam housed within the handle, the driven cam having a protrusion, a first ramp and a diametrically opposed second ramp, each ramp defining a pinnacle disposed between a first and second inclined surface, wherein a slope of the first inclined surfaces is substantially equal to a slope of the second inclined surfaces of the first and second ramp;
- a base that receives a portion of the handle such that the handle is rotatable with respect to the base, the base having a locking receptacle for receiving the protrusion;
- wherein the driven cam translates along a rotational axis of the tail when the tail is rotated so as to removably insert the protrusion into the locking receptacle to restrict rotation of the handle with respect to the base.
Dependencies are inferred from the claim text.