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US 7,003,990 B2Granted
Mortice lock
AssigneeGainsborough Hardware Industries Limited
InventorAndrey Iliuk
Life of this patent
Estimating the term…
Abstract
A mortice lock for recessed installation into the edge of a door or door frame includes a deadlatching member that is mounted on a bolt assembly for pivoting movement. A drive shaft and hub can be rotated in either a clockwise or counterclockwise direction to cause bolt retraction. The drive shaft and hub can be locked against rotation, or not, by a lock that is mechanically connected to a cylinder cam rotated by a key. The drive shaft and hub can be locked against rotation, or not, by a lock that is mechanically connected to an assembly including the bolt assembly interacting with a separately activated kick off member such that on retraction of the bolt, depending on the position of the kick off member, the hub is locked against rotation. The bolt can be retracted by each of the key cylinder cam and the hub, in isolation.
Claims32
A mortice lock comprising:
- a lock housing;
- a bolt assembly adapted to move relative to the housing along a working direction between extended position and retracted positions;
- a deadlatching member adapted to pivot between a deadlatching position preventing the bolt assembly from moving from the extended position to the retracted position and a closing position allowing the bolt assembly to move from the extended position to the retracted position, said deadlatching member being spring biased to the deadlatching position;
- wherein the deadlatching member is pivotally mounted on the bolt assembly for movement with the bolt assembly and adapted to pivot between said deadlatching and closing positions in a direction normal to the working direction.
1 more element
A mortice lock comprising:
- a lock housing;
- a drive shaft adapted to be rotationally driven about an axis by a handle or knob;
- a hub mounted on the shaft for rotation therewith from a first position towards either a second clockwise position and a third anti-clockwise position, the hub having a pair of spaced apart protuberances;
- and
- a drive means adapted for movement relative to the housing, the drive means having a pair of formations and an engaging surface adapted, upon moving, to cause movement in a bolt retraction assembly,
- wherein clockwise movement of the hub to the second position causes one of the protuberances to abut one of the formations and cause the drive member to move in a first direction and anti-clockwise movement of the hub to the third position causes the other of the protuberances to abut the other of the formations and also cause the drive member to move in the first direction.
3 more elements
A mortice lock comprising:
- a lock housing;
- a drive shaft adapted to be rotationally driven about an axis by a handle or knob;
- a hub mounted on the shaft for rotation therewith, the hub having a protuberance;
- and
- a hub rotation locking means having a recess and adapted for slidable movement relative to the housing between a first position in which the protuberance is received within the recess and the hub is thus prevented from rotating and a second position in which the protuberance is remote the recess and the hub is thus able to rotate;
- a locking device adapted for slidable movement relative to the housing in response to rotation of a cylinder cam;
- an engagement means settable in an engaged position in which the hub rotation locking means and the locking device are joined for slidable movement together relative to the housing and a disengaged position in which the hub rotation locking means and the locking device are free from slidable movement together relative to the housing,
- wherein, when the hub locking means is in the second position and said engagement means is set in said engaged position, rotation of the cylinder cam in a first direction slides the locking device and the hub rotation locking means together such that the protuberance is received in the recess and the hub is not able to rotate and,
- when the hub locking means is in the second position and said engagement means is set in the disengaged position, rotation of the cylinder cam in said first direction slides the locking device only such that the protuberance remains remote from the recess and the hub is able to rotate.
6 more elements
A mortice lock comprising:
- a lock housing;
- a bolt assembly adapted to move relative to the housing between extended and retracted positions, the bolt assembly having a first driving protuberance;
- a kick off actuation member mounted for pivotal movement between an active position and an inactive position, the kick off member having a second driving protuberance;
- a hub mounted on a drive shaft for rotation therewith;
- and
- a locking device adapted for slidable movement relative to the housing between a locking position preventing rotation of the hub and an unlocking position allowing rotation of the hub;
- wherein when the kick off member is in the inactive position and the bolt assembly is driven from the extended position towards the retracted position, the first driving protuberance passes the second driving protuberance without contact therebetween and causes no movement of the kick off member from the inactive position, and
- wherein when the kick off member is in the active position and the bolt assembly is driven from the extended position towards the retracted position, the first driving protuberance contacts the second driving protuberance and causes initial pivotal movement of the kick off member to the active position and further pivotal movement of the kick off member in the same direction causing the locking device to be driven to the locking position.
5 more elements
A mortice lock comprising:
- a lock housing;
- a bolt assembly adapted to move relative to the housing along a working direction between extended position and retracted positions, said bolt assembly being spring biased to the extended position;
- a deadlatching member adapted to pivot between a deadlatching position preventing the bolt assembly from moving from the extended position to the retracted position and a closing position allowing the bolt assembly to move from the extended position to the retracted position;
- wherein the deadlatching member is pivotally mounted on the bolt assembly for movement with the bolt assembly and adapted to pivot between said deadlatching and closing positions in a direction normal to the working direction.
1 more element
A mortice lock comprising:
- a lock housing;
- a bolt assembly adapted to move relative to the housing along a working direction between extended position and retracted positions, said bolt assembly including a primary bolt and an auxiliary bolt;
- a deadlatching member adapted to pivot between a deadlatching position preventing the bolt assembly from moving from the extended position to the retracted position and a closing position allowing the bolt assembly to move from the extended position to the retracted position, said deadlatching member being driven between the closing and deadlatching positions by relative movement between the primary bolt and the auxiliary bolt;
- wherein the deadlatching member is pivotally mounted on the bolt assembly for movement with the bolt assembly and adapted to pivot between said deadlatching and closing positions in a direction normal to the working direction.
1 more element
Dependencies are inferred from the claim text.