Reversible mortise lock
AssigneeBetteli, Inc. Hong Kong
InventorMing Gui Yang
Life of this patent
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Abstract
The reversible mortise lock of the present invention can be installed on either the left or right side edges of a door opposite the door hinges. The lock includes a housing with a live bolt pivotally and slidably mounted in the housing. The live bolt slides between an extended position beyond the housing and a fully retracted position within the housing. When fully retracted, the live bolt can be rotated 180° so that the beveled face of the live bolt can be reversed. A finger pivotally mounted within the housing blocks full retraction of the live bolt when the mortise lock is installed in the door.
Claims28
A mortise lock, comprising:
- a housing;
- a live bolt slidably mounted in the housing for movement between extended and retracted positions;
- an actuator for moving the live bolt;
- a mortise plate mounted to the housing and having an opening through which the live bolt extends;
- a finger pivotally mounted in the housing for movement between a first position to limit retraction of the live bolt and a second position to allow full retraction of the live bolt beyond the mortise plate;
- the finger pivoting by gravity between the first and second positions;
- and
- the live bolt being pivotally mounted in the housing for 180° rotation when the finger is in the second position and the live bolt is fully retracted, whereby the mortise lock is usable on opposite edges of the door.
A mortise lock, comprising:
- a housing;
- a live bolt pivotally and slidably mounted in the housing;
- the live bolt sliding between an extended position beyond the housing and a fully retracted position within the housing;
- a finger pivotally mounted on the housing for movement between a first position to engage the live bolt upon partial retractions and preclude further retraction to the fully retracted position when the mortise lock is installed and a second position disengaged from the live bolt before the mortise lock is installed to allow rotation of the live bolt;
- the finger pivoting by gravity between the first and second positions;
- and
- the live bolt being rotatable 180° when in the fully retracted position to reverse the mortise lock from left-handed to right-handed.
A method of reversing a mortise lock from left to right sides, the mortise lock having a housing with a live bolt rotatably and slidably mounted in the housing, the method comprising:
- sliding the live bolt from an extended position outside the housing to a retracted position within the housing;
- then
- rotating the live bolt 180° top to bottom;
- moving a finger from a blocking position to a non-blocking position before the mortise lock is installed for rotating, the live bolt;
- and
- moving the finger between the blocking and non-blocking positions by gravity;
- then sliding the live bolt to the extended position.
A mortise lock, comprising:
- a housing;
- a live bolt slidably mounted in the housing for movement between extended and retracted positions;
- an actuator for moving the live bolt;
- a mortise plate mounted to the housing and having an opening through which the live bolt extends;
- a finger pivotally mounted in the housing for movement between a first position to limit retraction of the live bolt and a second position to allow full retraction of the live bolt beyond the mortise plate;
- the live bolt being pivotally mounted in the housing for 180° rotation when the finger is in the second position and the live bolt is full retracted, whereby the mortise lock is usable on opposite edges of the door;
- and
- the finger being in the first position when the housing is upright and the finger being in the second position when the housing is inverted.
A mortise lock, comprising:
- a housing;
- and
- a live bolt pivotally and slidably mounted in the housing;
- the live bolt sliding between an extended position beyond the housing and a fully retracted position within the housing;
- the live bolt being rotatable 180° when in the fully retracted position to reverse the mortise lock from left-handed to right-handed;
- a finger pivotally mounted on the housing for movement between a first position to engage the live bolt upon partial retractions and preclude further retraction to the fully retracted position when the mortise lock is installed and a second position disengaged from the live bolt before the mortise lock is installed to allow rotation of the live bolt;
- and
- the finger being in the first position when the housing is upright and the finger being in the second position when the housing is inverted.
A method of reversing a mortise lock from left to right sides, the mortise lock having a housing with a live bolt rotatably and slidably mounted in the housing, the method comprising:
- sliding the live bolt from an extended position outside the housing to a retracted position within the housing;
- then
- rotating the live bolt 180° top to bottom;
- then sliding the live bolt to the extended position;
- moving a finger from a blocking position to a non-blocking position before the mortise lock is installed for rotating the live bolt;
- and
- moving the finger between the blocking and non-blocking position by turning the housing 180° top to bottom about a horizontal axis.
Dependencies are inferred from the claim text.