초록 ▼

A lock includes a bolt having latching and unlatching positions, and a locking component having a locking position in which the bolt is prevented from moving from the latching position to the unlatching position, and an unlocking position in which the locking component does not prevent the bolt from

A lock includes a bolt having latching and unlatching positions, and a locking component having a locking position in which the bolt is prevented from moving from the latching position to the unlatching position, and an unlocking position in which the locking component does not prevent the bolt from moving. A lock cylinder includes a cam having unlocking and deadlocking positions. A deadlocking component has a disengaging position in which the deadlocking component does not prevent the locking component from moving from its locking position to its unlocking position; and when the locking component is in its locking position, an engaging position in which the deadlocking component prevents the locking component from moving. When the cam is in its unlocking position, the locking component is in its unlocking position and a deadlocking component is in its disengaging position, and conversely when the cylinder cam is in its deadlocking position.

대표청구항 ▼

1. A lock which is operable for use on a hinged/swinging door or window comprising: a rotating hook bolt which can adopt a latching position and an unlatching position, wherein the hook bolt is biased towards the latching position,one or more intermediate drive components for moving the hook bolt fr

1. A lock which is operable for use on a hinged/swinging door or window comprising: a rotating hook bolt which can adopt a latching position and an unlatching position, wherein the hook bolt is biased towards the latching position,one or more intermediate drive components for moving the hook bolt from the latching position to the unlatching position,a hook bolt retention and release component configured such that, if the hook bolt is moved from the latching position to the unlatching position and the door or window swings open, the hook bolt retention and release component moves so as to engage one or more intermediate drive components to retain the hook bolt in the unlatching position, but if the door or window is closed, this causes the hook bolt retention and release component to move so as to disengage from said one or more intermediate drive components such that the hook bolt moves from the unlatching position to the latching position under its bias,one or more locking components which can adopt a locking position in which the hook bolt is prevented from moving from the latching position to the unlatching position, and an unlocking position in which the locking component(s) do(es) not prevent the hook bolt from moving from the latching position to the unlatching position,a lock cylinder having a cylinder cam that can adopt an unlocking position and a deadlocking position, anda deadlocking component which: can adopt a disengaging position in which the deadlocking component does not prevent the locking component(s) from moving from its/their locking position to its/their unlocking position, andcan, when the locking component(s) is/are in its/their locking position, adopt an engaging position in which the deadlocking component prevents the locking component(s) from moving from its/their locking position to its/their unlocking positionwherein the cylinder cam is functionally linked to the locking component(s) and the deadlocking component such that when the cylinder cam is in its unlocking position, the locking component(s) is/are in its/their unlocking position and the deadlocking component is in its disengaging position, andwhen the cylinder cam is in its deadlocking position, the locking component(s) is/are in its/their locking position and the deadlocking component is in its engaging position. 2. The lock as claimed in claim 1, further comprising snib means, the snib means being functionally linked to the one or more locking components and operable, when the deadlocking component is in the disengaging position, to move the locking component(s) between its/their locking position and unlocking position. 3. The lock as claimed in claim 2 wherein the locking component(s) include(s) a portion which is engageable with the snib means so that the snib means can be used to move the locking component(s) vertically up and down when the deadlocking component is in its disengaging position. 4. The lock as claimed in claim 2 wherein the snib means includes a pivotable snib component which engages at least one of the locking component(s) and is operable such that, when the snib component pivots, this pushes or pulls on at least one locking component and causes the locking component(s) to move from its/their unlocking position to its/their locking position, or vice versa. 5. The lock as claimed in claim 4 wherein the snib component is operable by a snib lever which is on the exterior of the lock. 6. The lock as claimed in claim 2, wherein operation of the snib means to move the locking component(s) from its/their unlocking position to its/their locking position also causes the cylinder cam to adopt a snib position, and when the cylinder cam is in its snib position, the locking component(s) is/are in its/their locking position and the deadlocking component is in its disengaging position. 7. The lock as claimed in claim 6, wherein the cylinder cam engages directly with the deadlocking component when the cylinder cam is in the unlocking position to maintain the deadlocking component in the disengaging position, and the cylinder cam also engages directly with the deadlocking component to maintain the deadlocking component in the disengaging position when the cylinder cam is in its snib position, but the cylinder cam moves out of engagement with the deadlocking component when the cylinder cam moves into the deadlocking position thereby allowing the deadlocking component to move into the engaging position. 8. The lock as claimed in claim 1 further including a mover component which is pivotable between a first position and a second position, the mover component being operatively associated with the hook bolt by one or more said intermediate drive components, and pivotal movement of the mover component from the first position to the second position is transmitted by the intermediate drive component(s) to cause the hook bolt to rotate from the latching position to the unlatching position. 9. The lock as claimed in claim 8 wherein the lock allows two operating handles to connect thereto, one from either side, and each handle is functionally linked to the mover component via a spindle. 10. The lock as claimed in claim 8 wherein the locking component(s) include a portion which can engage with the mover component, when the locking component(s) is/are in the locking position, to prevent the mover component from moving from the first position to the second position. 11. The lock as claimed in claim 1 wherein the locking component(s) is/are configured for vertical sliding movement. 12. The lock as claimed in claim 11 wherein the locking component(s) include a portion with which the cylinder cam can engage to move the locking component(s) vertically up and down when the cylinder cam is turned one way and the other, respectively. 13. The lock as claimed in claim 1 wherein the locking component(s) include a portion which can engage with the deadlocking component when the locking component(s) is/are in the locking position and the deadlocking component is in the engaging position. 14. The lock as claimed in claim 1 wherein the locking component(s) include a portion which engages with the hook bolt, when the locking component(s) is/are in the locking position, to prevent the hook bolt from moving from the latching position to the unlatching position. 15. The lock as claimed in claim 1, wherein the deadlocking component is biased towards the engaging position. 16. A multipoint lock assembly comprising the lock as claimed in claim 1 and one or more auxiliary latches, wherein the lock's operation is linked to that of the auxiliary latch(es) by way of a connecting member. 17. The multipoint lock assembly as claimed in claim 16, wherein each auxiliary latch has a latch bolt, and the operation of the latch bolt of each latch is linked to the operation of the lock by the connecting member such that when the lock's locking component(s) is/are in the unlocking position, the latch bolt of each auxiliary latch adopts an unlatching position, but when the lock's locking component(s) is/are moved into the locking position this causes the connecting member to also move into a locking position, which in turn causes the latch bolt of each auxiliary latch to adopt a latching position.