[특허]Lock apparatus and method

Master Lock Company LLC

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특허 상세정보

MyON담기

내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Lock apparatus and method

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	E05B-029/06 E05B-029/00 E05B-015/16
미국특허분류(USC)	070/383; 070/384; 070/492; 070/495
출원번호	US-0615679 (2009-11-10)
등록번호	US-9003845 (2015-04-14)
발명자 / 주소	Boesel, Lucas J. Grimmer, Larry R.
출원인 / 주소	Master Lock Company LLC
대리인 / 주소	Calfee, Halter & Griswold LLP
인용정보	피인용 횟수 : 0 인용 특허 : 290

초록

Lock assembly and method of coding and recoding locks. Some embodiments of a lock include a housing, a lock cylinder, a plurality of tumblers, a plurality of codebars, and a sidebar. Some embodiments of a lock include a housing, a lock cylinder, a plurality of tumblers, a plurality of code blocks, a sidebar, and a codebar.

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1. A recodeable lock operable by an authorized key, the lock comprising: a housing defining a longitudinal axis;a lock cylinder positioned within the housing and rotatable with respect to the housing about the longitudinal axis;a sidebar that moves radially with respect to the housing between a locked position, in which at least a portion of the sidebar is engaged with the housing to prevent rotation of the lock cylinder relative to the housing, and an unlocked position, in which the sidebar is disengaged from at least one of the lock cylinder and the housing to allow rotation of the lock cylinder relative to the housing;a plurality of code blocks positioned within the lock cylinder, the plurality of code blocks moving from an uncoded state to a coded state by insertion of the authorized key into the lock cylinder, the plurality of code blocks being securable with respect to the sidebar by a codebar, wherein the codebar is moveable radially with respect to the housing between a code block securing position and a code block releasing position; anda plurality of tumblers positioned within the lock cylinder, each of the plurality of code blocks engaging a corresponding each one of the plurality of tumblers. 2. The recodeable lock of claim 1, wherein the codebar includes a first surface and one of the code blocks includes a second surface in facing relationship with the first surface, wherein the first and second surfaces are spaced from each other when the one of the code blocks is in the uncoded state, and wherein the first and second surfaces engage each other when the one of the code blocks is in the coded state. 3. The recodeable lock of claim 2, wherein the codebar includes a first plurality of teeth positioned on the first surface, wherein the one of the code blocks includes a second plurality of teeth positioned on the second surface, wherein the first and second plurality of teeth are spaced from each other when the one of the code blocks is in the uncoded state, and wherein the first and second plurality of teeth engage each other when the one of the code blocks is in the coded state. 4. The recodeable lock of claim 2, wherein each of the plurality of code blocks is moveable with respect to the codebar when in the uncoded state, and the codebar engages and prevents movement of each of the plurality of code blocks with respect to the codebar when in the coded state. 5. The recodeable lock of claim 4, wherein the codebar moves radially with respect to the lock cylinder when moving from the coded state to the uncoded state. 6. The recodeable lock of claim 1, wherein one of the tumblers is arranged in the lock cylinder to translate with respect to the lock cylinder upon insertion of the authorized key into the lock cylinder, wherein the one of the tumblers includes one of a projection and a notch, wherein one of the code blocks includes an other of the projection and the notch, and wherein the projection engages the notch upon insertion of the authorized key into the lock cylinder when the one of the code blocks is in the coded state. 7. The recodeable lock of claim 6, further comprising a resilient member biasing the one of the tumblers toward a position in which the projection is disengaged from the notch when the codebar is in the coded state. 8. The recodeable lock of claim 6, wherein the sidebar is maintained in the locked position when the projection is disengaged from the notch when the codebar is in the coded state, and wherein the sidebar is moved to the unlocked position upon engagement of the projection and the notch when the codebar is in the coded state. 9. The recodeable lock of claim 1, further comprising a resilient member biasing the sidebar and the codebar toward one of the tumblers. 10. The recodeable lock of claim 1, wherein the tumblers are positioned to move transversely with respect to the codebar within the lock cylinder. 11. A recodeable lock operable by an authorized key, the lock comprising: a housing defining a longitudinal axis;a lock cylinder positioned within the housing and rotatable with respect to the housing about the longitudinal axis;a sidebar that moves radially with respect to the housing between a locked position, in which at least a portion of the sidebar is engaged with the housing to prevent rotation of the lock cylinder relative to the housing, and an unlocked position, in which the sidebar is disengaged from at least one of the lock cylinder and the housing to allow rotation of the lock cylinder relative to the housing;a plurality of code blocks positioned within the lock cylinder, the plurality of code blocks moving from an uncoded state to a coded state by insertion of the authorized key in the lock cylinder, the plurality of code blocks being securable with respect to the sidebar by a codebar; anda plurality of tumblers positioned within the lock cylinder, each of the plurality of code blocks engaging a corresponding each one of the plurality of tumblers;wherein the plurality of code blocks are moveable from the coded state to the uncoded state by movement of the codebar from a code block securing position to a code block releasing position, which disengages at least one of the plurality of code blocks from the codebar. 12. A recodeable lock comprising: a housing defining a longitudinal axis;a lock cylinder positioned within the housing and selectively rotatable with respect to the housing about the longitudinal axis between a locked orientation and a recoding orientation;a plurality of tumblers positioned within the lock cylinder and engageable with an authorized key inserted in a keyway of the lock cylinder for movement of each of the plurality of tumblers to an unlocking position;a housing engaging element engageable with the housing when the lock cylinder is in the locked position to prevent rotation of the lock cylinder relative to the housing, anda plurality of tumbler engaging elements each engageable with a corresponding one of the plurality of tumblers, such that the housing engaging element is movable to disengage from the housing when each of the plurality of tumblers is in the unlocking position, thereby permitting rotation of the lock cylinder from the locked orientation to the recoding orientation;wherein when the lock cylinder is in the recoding orientation, the plurality of tumbler engaging elements are movable with respect to the housing engaging element to selectively change the unlocking positions of the corresponding tumblers. 13. The recodeable lock of claim 12, further comprising a codebar securing the tumbler engaging elements with respect to the housing engaging element in a first position, and permitting movement of the tumbler engaging elements with respect to the housing engaging element in a second position, wherein the codebar is movable from the first position to the second position when the lock cylinder is in the recoding orientation. 14. The recodeable lock of claim 13, wherein the housing engaging element comprises a sidebar and each of the tumbler engaging elements comprises one of a plurality of code blocks, wherein the codebar includes a plurality of first surfaces and the plurality of code blocks each include a second surface in facing relationship with a corresponding one of the plurality of first surfaces, wherein the first and second surfaces engage each other when the codebar is in the first position, and wherein the first and second surfaces are spaced apart from each other when the codebar is in the second position. 15. The recodeable lock of claim 14, wherein the codebar includes a first plurality of teeth positioned on the first surface, and the plurality of code blocks each include a second plurality of teeth positioned on the second surface, wherein the first and second pluralities of teeth engage each other when the codebar is in the first position. 16. The recodeable lock of claim 14, wherein each of the plurality of tumblers includes one of a projection and a notch, and each of the corresponding code blocks includes the other of the projection and the notch, and wherein each of the projections engages each of the corresponding notches upon insertion of the authorized key into the lock cylinder when the codebar is in the first position. 17. The recodeable lock of claim 16, further comprising a resilient member biasing at least one of the tumblers toward a position in which the corresponding projection is disengaged from the corresponding notch when the codebar is in the coded state. 18. The recodeable lock of claim 16, wherein when each of the projections engages each of the corresponding notches upon insertion of the authorized key into the lock cylinder when the codebar is in the first position, the housing engaging element is moved to disengage from the housing. 19. The recodeable lock of claim 13, wherein the codebar moves in a radial direction with respect to the lock cylinder when moving from the first position to the second position. 20. The recodeable lock of claim 12, further comprising a resilient member biasing the housing engaging element toward disengagement from the housing.

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Lock apparatus and method

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Lock apparatus and method

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