IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0377327
(2003-02-28)
|
우선권정보 |
GB-0005752 (2000-03-11) |
발명자
/ 주소 |
|
출원인 / 주소 |
- Banham Patent Locks Limited
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
1 인용 특허 :
12 |
초록
▼
A lock for a door comprises a casing, a bolt operable to extend from or retract into the casing, a pivoted operating handle operable at one side of the door to retract the bolt, lock means for key operation at the other side of the door, and blocking means to prevent operation of the handle to retra
A lock for a door comprises a casing, a bolt operable to extend from or retract into the casing, a pivoted operating handle operable at one side of the door to retract the bolt, lock means for key operation at the other side of the door, and blocking means to prevent operation of the handle to retract the bolt. In a locked closed position of the door, the bolt is extended, and with the blocking means operated, key operation of the exterior lock means both retracts the bolt and also de-actuates the blocking means. At the inside of the door further key operable lock means are provided solely to operate and, if required, to de-actuate, the blocking means.
대표청구항
▼
1. A lock for a wing movable between open and closed positions relative to a frame comprising a casing, a bolt operable to extend from or to retract into said casing, an operating member at one side of the wing, in use, arranged to be pivotally operable to retract the bolt, a pivoted locking member
1. A lock for a wing movable between open and closed positions relative to a frame comprising a casing, a bolt operable to extend from or to retract into said casing, an operating member at one side of the wing, in use, arranged to be pivotally operable to retract the bolt, a pivoted locking member at least partly within the casing, arranged to automatically and directly engage the bolt and to deadlock the bolt when it is in its extended position, and a unitary element separate from the casing, said element providing within the casing either a part only of a bearing surface for a pivot of the operating member or a part only of a bearing surface for a pivot of the locking member, or parts only of respective bearing surfaces for respective pivots of the operating member and the locking member.2. A lock for a wing movable between open and closed positions relative to a frame comprising a casing, a bolt operable to extend from or to retract into said casing, an operating member at one side of the wing, in use arranged to be pivotally operable to retract the bolt, a pivoted locking member at least partly within the casing, arranged automatically, directly to engage the bolt and to deadlock the bolt when it is in its extended position, and a unitary element providing within the casing either at least part of a bearing surface for a pivot of the operating member or a pivot of the locking member, or at least parts of respective bearing surfaces for respective pivots of the operating member and the locking member, wherein the element provides at least parts respectively of bearing surfaces for respective pivots of the operating member and the locking member, and for each pivot, said element provides a semi-cylindrical bearing surface.3. A lock as claimed in claim 2, wherein each bearing surface mates with a corresponding semi-cylindrical bearing surface provided by the casing.4. A lock as claimed in claim 3, wherein said element has a pair of spaced, parallel arms providing respective semi-cylindrical bearing surfaces for respective opposite ends of a pivot rod for the operating member.5. A lock as claimed in claim 3, wherein said element has a pair of spaced, parallel arms providing respective semi-cylindrical bearing surfaces for respective opposite ends of a pivot rod for the locking member.6. A lock as claimed in claim 5, wherein the element is secured to the casing, and a solid wall of the element is arranged immediately adjacent a side of said pivot rod for the locking member opposite from the pivot rod side at which the locking member extends.7. A lock for a wing movable between open and closed positions relative to a frame comprising a casing, a bolt operable to extend from or to retract into said casing, an operating member at one side of the wing, in use arranged to be pivotally operable to retract the bolt, a pivoted locking member at least partly within the casing, arranged to deadlock the bolt when it is in its extended position, and an element providing within the casing either at least part of a bearing surface for a pivot of the operating member or a pivot of the locking member, or at least parts of respective bearing surfaces for respective pivots of the operating member and the locking member, wherein the element provides a pair of spaced arms defining an opening therebetween, a spring biased bolt release member having a part slidably arranged in said opening, with an end of a biasing spring engaging said arms.8. A lock for a wing movable between open and closed positions relative to a frame comprising a casing, a bolt operable to extend from or to retract into said casing, an operating member at one side of the wing, in use arranged to be pivotally operable to retract the bolt, a pivoted locking member at least partly within the casing, arranged to deadlock the bolt when it is in its extended position, and an element providing within the casing either at least part of a bearing surface for a pivot of the operating member or a pivot of the locking member, or at least parts of respective bearing surfaces for respective pivots of the operating member and the locking member, wherein the element provides a guide slot for a connector component between the operating member and the locking member, the component being formed from spring steel and operating so that via said component the locking member is released from engagement with the bolt when the operating member is pivoted to retract the bolt from its extended position.9. A lock as claimed in claim 1, wherein the element has a portion projecting outwardly through an opening of the casing, said portion receiving a lock cylinder and plug assembly.10. A lock as claimed in claim 1, wherein the element has at least one hole therein for fixing means securing it to said casing.11. A lock as claimed in claim 1, wherein said element is a casting.
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