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US 11,519,125 B2Granted
Door lock
AssigneeIllinois Tool Works Inc.
InventorYang Wang
Life of this patent
Estimating the term…
Abstract
The present disclosure discloses a door lock, comprising a cam having a notch, wherein the door hook is fixed in the cam when a door hook mounted on the door is inserted into the notch of the cam; driving means actuated by a push force from outside of the door, a pull force from outside of the door, a push from inside of the door, or by a control signal, wherein the driving means moves the cam from a locked position to an unlocked position.
Claims15
A door lock, comprising:
- a cam having a notch;
- a sliding block abutting against the cam and linearly reciprocating with rotation of the cam along a direction of reciprocation;
- a rocking block defining an axis of rotation and mounted on and reciprocating in unison with the sliding block so that the rocking block is rotatably movable about the axis of rotation and linearly moveable along the direction of reciprocation,
- wherein the rocking block defines a rotatable state in which the rocking block can rotate relative to the sliding block and a non-rotatable state in which the rocking block is prevented from rotating relative to the sliding block;
- a rocking block locking mechanism for locking the rocking block to make it non-rotatable relative to the sliding block or releasing the rocking block to make it rotatable relative to the sliding block;
- and
- automatic unlocking means for releasing the rocking block locking mechanism.
4 more elements
A door lock, comprising:
- a cam having a notch
- a sliding block configured for linear reciprocation and which abuts against the cam to translate rotation of the cam into linear movement of the sliding block along a direction of reciprocation;
- and
- a rocking block defining an axis of rotation and mounted on and reciprocating in unison with the sliding block so that the rocking block is rotatably movable about the axis of rotation and linearly moveable along the direction of reciprocation;
- wherein the rocking block defines a rotatable state in which the rocking block can rotate relative to the sliding block and a non-rotatable state in which the rocking block is prevented from rotating relative to the sliding block.
2 more elements
A door lock, comprising:
- a cam having a notch;
- a sliding block abutting against the cam and reciprocating with rotation of the cam;
- a rocking block mounted on the sliding block, wherein the rocking block defines a rotatable state in which the rocking block can rotate and a non-rotatable state in which the rocking block is prevented from rotating;
- a rocking block locking mechanism for locking the rocking block to make it non-rotatable or releasing the rocking block to make it rotatable;
- automatic unlocking means for releasing the rocking block locking mechanism;
- and
- wherein the rocking block further comprises:
- a heart shaped groove having a first position corresponding to the locked position and a second position corresponding to the unlocked position.
5 more elements
A door lock, comprising:
- a cam having a notch;
- a sliding block abutting against the cam and reciprocating with rotation of the cam;
- a rocking block mounted on the sliding block, wherein the rocking block defines a rotatable state in which the rocking block can rotate and a non-rotatable state in which the rocking block is prevented from rotating;
- a rocking block locking mechanism for locking the rocking block to make it non-rotatable or releasing the rocking block to make it rotatable;
- automatic unlocking means for releasing the rocking block locking mechanism;
- wherein the rocking block locking mechanism comprises:
- a roller;
- a spring guide rod;
- and
- a spring being sleeved on the spring guide rod and providing an elastic force to the roller;
- wherein the rocking block has a spring bore;
- and
- wherein the spring, the spring guide rod, and the roller are mounted in the spring bore.
10 more elements
A door lock, comprising:
- a cam having a notch;
- a sliding block abutting against the cam and reciprocating with rotation of the cam;
- a rocking block mounted on the sliding block, wherein the rocking block defines a rotatable state in which the rocking block can rotate and a non-rotatable state in which the rocking block is prevented from rotating;
- a rocking block locking mechanism for locking the rocking block to make it non-rotatable or releasing the rocking block to make it rotatable;
- automatic unlocking means for releasing the rocking block locking mechanism,
- wherein:
- the sliding block is provided with a receiving cavity, a stepped protrusion being provided in the receiving cavity;
- and
- when a roller extends out of the rocking block and contacts the stepped protrusion, the stepped protrusion engages with the roller to prevent the rocking block from rotating.
6 more elements
A door lock, comprising:
- a cam having a notch;
- a sliding block abutting against the cam and reciprocating with rotation of the cam;
- a rocking block defining an axis rotation and mounted on and reciprocating in unison with the sliding block such that the axis of rotation of the rocking block reciprocates in unison with the sliding block, wherein the rocking block defines a rotatable state in which the rocking block can rotate and a non-rotatable state in which the rocking block is prevented from rotating;
- a rocking block locking mechanism for locking the rocking block to make it non-rotatable or releasing the rocking block to make it rotatable;
- automatic unlocking means for releasing the rocking block locking mechanism;
- a sliding mechanism having a pin provided thereon;
- wherein a heart shaped groove is provided above the sliding mechanism, and
- wherein the pin is inserted into the heart shaped groove, the pin moves between the locked position and the unlocked position in the heart shaped groove.
5 more elements
A door lock, comprising:
- a cam having a notch;
- a sliding block abutting against the cam and reciprocating with rotation of the cam;
- a rocking block mounted on and reciprocating in unison with the sliding block, wherein the rocking block defines a rotatable state in which the rocking block can rotate and a non-rotatable state in which the rocking block is prevented from rotating;
- a rocking block locking mechanism for locking the rocking block to make it non-rotatable or releasing the rocking block to make it rotatable;
- automatic unlocking means for releasing the rocking block locking mechanism;
- a sliding mechanism having a pin provided thereon:
- wherein a heart shaped groove is provided above the sliding mechanism, and
- wherein the pin is inserted into the heart shaped groove, the pin moves between the locked position and the unlocked position in the heart shaped groove;
- a base on which the sliding mechanism is mounted;
- wherein the rocking block has a raised portion, and the base has a protrusion;
- and
- wherein the raised portion of the rocking block and the protrusion of the base cooperate with each other to restore the rocking block to an eccentrically rotated position.
9 more elements
A door lock, comprising:
- a cam having a notch;
- a sliding block abutting against the cam and reciprocating with rotation of the cam;
- a rocking block mounted on the sliding block, wherein the rocking block defines a rotatable state in which the rocking block can rotate and a non-rotatable state in which the rocking block is prevented from rotating;
- a rocking block locking mechanism for locking the rocking block to make it non-rotatable or releasing the rocking block to make it rotatable;
- automatic unlocking means for releasing the rocking block locking mechanism;
- wherein the door lock further comprises:
- a buffer mechanism for buffering an external force applied when the door lock is in a locked state;
- wherein the buffer mechanism further comprises:
- a lever plate, a lever shaft, and a lever spring;
- wherein
- the lever plate comprises an upper portion, a middle portion, and a lower portion;
- the back of the middle portion of the lever plate is bent into an indentation for receiving the lever shaft;
- the sliding mechanism comprises a sliding plate, the sliding plate having a round disc;
- and
- the upper portion is close to an edge of the round disc of the sliding plate.
12 more elements
Dependencies are inferred from the claim text.