Conical shank anti-ligature releasable door lever
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
E05B-001/00
E05B-003/00
출원번호
US-0590135
(2009-11-02)
등록번호
US-8534723
(2013-09-17)
발명자
/ 주소
Berger, Mark J.
출원인 / 주소
Securitech Group, Inc.
대리인 / 주소
Abelman, Frayne & Schwab
인용정보
피인용 횟수 :
3인용 특허 :
7
초록▼
A lever latch lock assembly including: a. a lock housing mounted in the door including a lock bolt movable along a first axis, a spindle extending along a second axis generally perpendicular to the first axis, the spindle extending outward at each of the interior and exterior sides of the housing an
A lever latch lock assembly including: a. a lock housing mounted in the door including a lock bolt movable along a first axis, a spindle extending along a second axis generally perpendicular to the first axis, the spindle extending outward at each of the interior and exterior sides of the housing and terminating in opposite ends, and a transmission which converts rotation of the spindle to axial motion the lock bolt,b. a lever assembly attached to each of the spindle's ends and adapted to rotate the spindle, the lever assembly, including: (1) an escutcheon formed as a truncated generally conical cylinder having (i) a base of first diameter adapted to be situated closely adjacent one of the interior and exterior sides of the door and coaxial with the second axis,(ii) a top end having a top edge opposite the base, the top end having a smaller diameter than the first diameter, and(iii) a bore through which extends the spindle, and(2) a lever including (i) a hub part and(ii) an elongated handle part extending from one side of the escutcheon in a direction transverse of the second axis, the handle having a top part that extends as a smooth contiguous uninterrupted surface from the top of the hub.
대표청구항▼
1. A lever latch lock assembly installable in a door having interior and exterior sides, said assembly, comprising: a. a lock housing mountable in said door and having interior and exterior sides, said housing including a lock bolt movable along a first axis, a spindle extending along a second axis
1. A lever latch lock assembly installable in a door having interior and exterior sides, said assembly, comprising: a. a lock housing mountable in said door and having interior and exterior sides, said housing including a lock bolt movable along a first axis, a spindle extending along a second axis generally perpendicular to said first axis, said spindle extending outward at each of said interior and exterior sides of said housing and terminating in opposite ends, and a transmission which converts rotation of said spindle to axial motion said lock bolt,b. a lever assembly attached to each of said spindle's ends and adapted to rotate said spindle, said lever assembly, including: (1) an escutcheon formed as a truncated generally conical cylinder having: (i) a base part having a first diameter adapted to be situated closely adjacent one of said interior and exterior sides of said door and coaxial with said second axis,(ii) a top end part having a top surface opposite said base part, said top surface having a smaller diameter than said first diameter of said base part and having a circumferential top surface, with side walls extending between said base part and said top surface, and(iii) a bore through which extends said spindle, and(2) a lever including: (i) a hub part having a smoothly curved convex top surface with a generally round circumferential bottom edge having the same diameter as the top surface of the top end of the escutcheon, resulting in a substantially smooth continuous surface from the base part of the escutcheon toward the curved convex top surface of the hub part, a sleeve portion extending from said hub part configured to be received into said escutcheon to engage with said spindle; (ii) an elongated handle part extending from one side of said hub part in a direction transverse of said second axis of said spindle, said handle part having a free end opposed to said hub part, said handle part having a top part that extends as a smooth continuous uninterrupted surface with said top surface of the of said hub part, said handle part extending a radial distance from said second axis greater than the length of a radius of said base part, wherein, when a cord is wrapped around the hub part during a suicide attempt, the smooth continuous surfaces of the hub part are configured to allow the cord to slip over the hub part onto the lever, and the smooth continuous surfaces of the lever are configured to allow the cord to slip and decoupled from the lever, therefore, preventing the attempted suicide. 2. The lever latch lock according to claim 1 wherein said hub includes an axial recess extending in the direction of said bottom to said top thereof, and said spindle end is extended into said recess and keyed to rotate therewith. 3. The lever latch lock assembly according to claim 1 wherein said hub part of said lever and said escutcheon have a common central axis. 4. The lever latch lock assembly according to claim 1 wherein said escutcheon walls are inclined at about 55 degrees from the plane of the base of the escutcheon. 5. The lever latch lock assembly according to claim 1 wherein said elongated handle part extends along a plane that defines an angle of about 91 degrees with said spindle axis and is inclined away from said door surface. 6. The lever latch lock assembly according to claim 1 wherein said levers on said interior and exterior sides of said door can pivot from a generally horizontal rest position downward or upward, and said transmission is adapted so that either of said interior and exterior side levers can always freely pivot upwardly when pulled upward, and said transmission will engage said lock bolt to allow said door to open when said transmission is selectively directed to do so. 7. The lock assembly according to claim 1 wherein said transmission has a Passage Mode where movement of said lever downward in said Passage Mode lever on either interior or exterior side of said door will engage said transmission and move said bolt to open said door. 8. The lock assembly according to claim 7 wherein movement of said lever upward in said Passage Mode will not move said bolt. 9. The lever latch lock assembly according to claim 1 wherein said handle part extends radially from said hub part of said lever. 10. A combination door and lever latch lock assembly installed therein, said door having interior and exterior sides, comprising: a. a lock housing mounted in said door and having interior and exterior sides adjacent and corresponding to said interior and exterior sides of said door, said housing including a lock bolt movable along a first axis, a spindle extending along a second axis generally perpendicular to said first axis, said spindle extending outward at each of said interior and exterior sides of said housing and terminating in opposite ends, and a transmission which converts rotation of said spindle to axial motion said lock bolt,b. a lever assembly attached to each of said spindle's ends and adapted to rotate said spindle, said lever assembly, including: (1) an escutcheon formed as a truncated generally conical cylinder having (i) a base having a first diameter adapted to be situated closely adjacent one of said interior and exterior sides of said door and coaxial with said second axis,(ii) a top end having a top surface opposite said base part, said top surface having a smaller diameter than said first diameter of said base part, and(iii) a bore through which extends said spindle, and(2) a lever including (i) a hub part having a smoothly curved convex top surface with a generally round circumferential bottom edge having the same diameter as the top surface of the top end of the escutcheon, resulting in a substantially smooth continuous surface from the base part of the escutcheon toward the curved convex top surface of the hub part, a sleeve portion extending from said hub part configured to be received into said escutcheon to engage with said spindle;(ii) an elongated handle part extending from one side of said hub part in a direction transverse of said second axis of said spindle, said handle part having a free end opposed to said hub part, said handle part having a top part that extends as a smooth continuous uninterrupted surface with said top surface of the of said hub part, said handle part extending a radial distance from said second axis greater than the length ofa radius of said base part; wherein, when a cord is wrapped around the hub part during a suicide attempt, the smooth continuous surfaces of the hub part are configured to allow the cord to slip over the hub part onto the lever, and the smooth continuous surfaces of the lever are configured to allow the cord to slip and decoupled from the lever, therefore, preventing the suicide attempt. 11. A lever latch lock assembly installable in a door having interior and exterior sides, said assembly, comprising: a. a lock housing mountable in said door and having that has interior and exterior sides, said housing including a spindle extending from each side of said housing along a central axis,b. a lever assembly attached to said end of at least one of said spindles and adapted to rotate said spindle, said lever assembly, including: (1) an escutcheon formed as a truncated generally conical cylinder having (i) a base of first diameter adapted to be situated closely adjacent one of said interior and exterior sides of said door and coaxial with said second axis,(ii) a top end having a top edge opposite said base, said top end having a smaller diameter than said first diameter, and(iii) a bore through which extends said spindle, and(2) a lever including (i) a hub part having a smoothly curved convex top surface with a generally round circumferential bottom edge having the same diameter as the top surface of the top end of the escutcheon, resulting in a smooth substantially continuous surface from the base part of the escutcheon toward the curved convex top surface of the hub part, a sleeve portion extending from said hub part configured to be received into said escutcheon to engage with said spindle;(ii) an elongated handle part extending from one side of said hub part in a direction transverse of said central spindle axis, said handle part having a free end opposed to said hub part, said handle part having a top part that extends as a smooth continuous uninterrupted surface with said top surface of the of said hub part, said handle part extending a radial distance from said second axis greater than the length of a radius of said base part; wherein, when a cord is wrapped around the hub part during a suicide attempt, the smooth continuous surfaces of the hub part are configured to allow the cord to slip over the hub part onto the lever, and the smooth continuous surfaces of the lever are configured to allow the cord to slip and decoupled from the lever, therefore, preventing the suicide attempt. 12. The lever latch lock assembly according to claim 11 wherein said escutcheon walls are inclined at about 55 degrees from the plane of the base of the escutcheon. 13. The lever latch lock assembly according to claim 11 wherein said levers on said interior and exterior sides of said door can pivot from a generally horizontal rest position downward or upward, and said transmission is adapted so that either of said interior and exterior side levers can always freely pivot upwardly when pulled upward, and said transmission will engage said lock bolt to allow said door to open when said transmission is selectively directed to do so. 14. The lever latch lock assembly according to claim 11 wherein said transmission means has: (a) a Classroom Unlocked Mode where said exterior side lever is pivotable from said generally horizontal rest position downward which will move said lock bolt and open said door, and said lever is freely movable from said generally horizontal rest position upward to an upward to an upward position herein also designated “anti ligature latch lock” release position, and (b) a Classroom Locked Mode where said lever is pivotable from said generally horizontal rest position downward which will not open said door and is freely movable upward to said “anti ligature latch lock” release position. 15. The lock assembly according to claim 14 wherein said transmission has a Passage Mode where movement of said lever downward in said Passage Mode lever on either interior or exterior side of said door will engage said transmission and move said bolt to open said door. 16. The lock assembly according to claim 15 wherein movement of said lever upward in said Passage Mode will not move said bolt. 17. The lock assembly according to claim 11 wherein said transmission further comprises a switch movable between a first position Passage Mode which allows said lever to move downward without moving said bolt to its open state, and a second position for said Classroom Locked Mode which allows said lever to move downward to move said bolt to its open state. 18. A lever and escutcheon combination attachable to the exposed end of the spindle of a door latch lock assembly which assembly includes a latch bolt movable from its extended state to its retracted state by pivoting of said lever, comprising: a. an escutcheon formed as a truncated generally conical cylinder with a central axis and having: (i) a base part having a first diameter(ii) a top end part having a smaller diameter than said first diameter of said base part, with side walls extending between said base part and said top end part, and(iii) a central bore through said escutcheon, andb. a lever including: (i) a hub part having a smoothly curved convex top surface and a bottom part with a round circumferential bottom edge having the same diameter as the top end part of said escutcheon and positionable closely adjacent said top end part, resulting in a substantially smooth continuous surface from the base part of the escutcheon to the curved convex top surface of said hub part;(ii) an elongated handle part extending from one side of said hub part in a direction transverse of said central axis of said escutcheon, said handle part having a free end opposed to said hub part, said handle part having a top part that extends as a smooth continuous uninterrupted surface with said top surface of the of said hub part, said handle part extending a radial distance from said central axis greater than the length of a radius of said base part, and(iii) a sleeve portion extending coaxially downward from said bottom part of said hub part, through said escutcheon and configured to engage said spindle end. 19. The lever and escutcheon combination of claim 18 wherein said hub part bottom edge is positioned closely adjacent said top end part of said escutcheon. 20. A lever latch lock assembly installable in a door having interior and exterior sides, said assembly, comprising: a. a lock housing mountable in said door and having interior and exterior sides, said housing including a lock bolt movable along a first axis, a spindle extending along a second axis generally perpendicular to said first axis, said spindle extending outward at each of said interior and exterior sides of said housing and terminating in opposite ends, and a transmission which converts rotation of said spindle to axial motion said lock bolt,b. a lever assembly attached to each of said spindle's ends and adapted to rotate said spindle, said lever assembly, including: (1) an escutcheon formed as a truncated generally conical cylinder having: (i) a base part having a first diameter adapted to be situated closely adjacent one of said interior and exterior sides of said door and coaxial with said second axis,(ii) a top end part having a top surface opposite said base part, said top surface having a smaller diameter than said first diameter of said base part and having a circumferential top surface, with side walls extending between said base part and said top surface, and(iii) a bore through which extends said spindle, and(2) a lever including: (i) a hub part having a smoothly curved convex top surface with a generally round circumferential bottom edge having the same diameter as the top surface of the top end of the escutcheon, resulting in a substantially smooth continuous surface from the base part of the escutcheon toward the curved convex top surface of the hub part, a sleeve portion extending from said hub part configured to be received into said escutcheon to engage with said spindle;(ii) an elongated handle part extending from one side of said hub part in a direction transverse of said second axis of said spindle, said handle part having a free end opposed to said hub part, said handle part having a top part that extends as a smooth continuous uninterrupted surface with said top surface of the of said hub part, said handle part extending a radial distance from said second axis greater than the length of a radius of said base part, wherein, when a cord is wrapped around the hub part during a suicide attempt, the smooth continuous surfaces of the hub part are configured to allow the cord to slip over the hub part onto the lever, and the smooth continuous surfaces of the lever are configured to allow the cord to slip and decoupled from the lever, therefore, preventing the attempted suicide, andwherein said transmission has: (a) a Classroom Unlocked Mode where said exterior side lever is pivotable from said rest position downward which will move said lock bolt and open said door, and said lever is freely movable upward to an “anti ligature latch lock” release position, and (b) a Classroom Locked Mode where said lever is pivotable from its rest position downward which will not open said door and is freely movable upward to said “anti ligature latch lock” release position. 21. A lever latch lock assembly installable in a door having interior and exterior sides, said assembly, comprising: a. a lock housing mountable in said door and having interior and exterior sides, said housing including a lock bolt movable along a first axis, a spindle extending along a second axis generally perpendicular to said first axis, said spindle extending outward at each of said interior and exterior sides of said housing and terminating in opposite ends, and a transmission which converts rotation of said spindle to axial motion said lock bolt,b. a lever assembly attached to each of said spindle's ends and adapted to rotate said spindle, said lever assembly, including: (1) an escutcheon formed as a truncated generally conical cylinder having: (i) a base part having a first diameter adapted to be situated closely adjacent one of said interior and exterior sides of said door and coaxial with said second axis,(ii) a top end part having a top surface opposite said base part, said top surface having a smaller diameter than said first diameter of said base part and having a circumferential top surface, with side walls extending between said base part and said top surface, and(iii) a bore through which extends said spindle, and(2) a lever including: (i) a hub part having a smoothly curved convex top surface with a generally round circumferential bottom edge having the same diameter as the top surface of the top end of the escutcheon, resulting in a substantially smooth continuous surface from the base part of the escutcheon toward the curved convex top surface of the hub part, a sleeve portion extending from said hub part configured to be received into said escutcheon to engage with said spindle;(ii) an elongated handle part extending from one side of said hub part in a direction transverse of said second axis of said spindle, said handle part having a free end opposed to said hub part, said handle part having a top part that extends as a smooth continuous uninterrupted surface with said top surface of the of said hub part, said handle part extending a radial distance from said second axis greater than the length of a radius of said base part, wherein, when a cord is wrapped around the hub part during a suicide attempt, the smooth continuous surfaces of the hub part are configured to allow the cord to slip over the hub part onto the lever, and the smooth continuous surfaces of the lever are configured to allow the cord to slip and decoupled from the lever, therefore, preventing the attempted suicide wherein said transmission further comprises a switch movable between a first position Passage Mode which allows said lever to move downward without moving said bolt to its open state, and a second position for said Classroom Locked Mode which allows said lever to move downward to move said bolt to its open state.
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이 특허에 인용된 특허 (7)
Robert K. Howie, Jr., Composite knob having a pullout and torque resistant insert with a threaded socket.
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