[특허]Flush-type door lock

The Eastern Company (Cleveland OH 02)

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Flush-type door lock

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	E05B-005/00 E05C-001/00
미국특허분류(USC)	292/164 ; 70/144 ; 70/150 ; 292/143
출원번호	US-0903164 (1978-05-05)
발명자 / 주소	Pelcin Albert L. (Aurora OH)
출원인 / 주소	The Eastern Company (Cleveland OH 02)
인용정보	피인용 횟수 : 46 인용 특허 : 1

초록
▼

A flush mountable door lock includes a recessed body member, a lock bolt slidably mounted on the body member, and a paddle-shaped operating handle for moving the bolt. The handle is movable between nested and projected positions. A bolt actuator extends from the handle into a receiving formation provided on the bolt for drivingly interconnecting the handle and the bolt to effect retracting and extending movements of the bolt when the handle is moved toward its projected and retracted positions. A torsion coil spring is interposed between the body member and the handle, and serves the several functions of biasing the handle toward its nested position, maintaining play-free engagement between the handle and the body member when the handle is nested, and maintaining a play-free driving connection between the handle and the bolt when the handle is projected. A ball-spring detent system is interposed between the body member and the bolt, and serves the several functions of assisting in effecting final movement of the bolt to its extended and retracted positions as the bolt approaches these positions, releasably retaining the bolt in its extended position when the handle is nested, and releasably retaining the bolt in its retracted position when the handle is projected. The ball-spring detent system preferably includes a hardened steel ball carried in a closed-ended hole provided in the bolt. A compression coil spring is carried in the closed-ended hole and biases the ball outwardly of the closed-ended hole for selective engagement with spaced formations provided on the body member. One or more plastic inserts carried in the bolt may define the closed-ended hole and/or may define at least a part of the actuator receiving formation.

대표
청구항
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A flush-mountable door lock, comprising: (a) a body structure having side and back walls which cooperate to define a forwardly facing recess, the back wall having a stepped configuration with a first part defining a relatively shallow recess portion and a second part defining a relatively deeper recess portion, and having an opening formed through the back wall; (b) an elongate bolt slidably supported on the body structure at a location behind a portion of the back side of the second part, the bolt being movable between an extended position wherein the bolt is extended with respect to the body structure, and a retracted position wherein the bolt is retracted with respect to the body structure, the bolt having a receiving formation commuicating with the back wall opening, the receiving formation being positioned near one end of the back wall opening when the bolt is in its extended position, and being positioned near the other end of the back wall opening when the bolt is in its retracted position; (c) a paddle-shaped handle pivotally mounted on the body member and being movable between a nested position wherein the handle is nested within the deeper recess portion, and a projected position wherein a substantial portion of the handle projects forwardly of the recess; (d) detent means interposed between the body structure and the bolt for selectively releasably retaining the bolt in its retracted and extended positions and for assisting in moving the bolt to and positioning the bolt in its retracted and extended positions once the bolt closely approaches these positions; (e) connecting means extending through the back wall opening and into the receiving formation for establishing a driving interconnection between the handle and the bolt which is operative to move the bolt out of its extended position and toward its retracted position as the handle is moved from its nested position to its projected position, and which is operative to move the bolt out of its retracted position and toward its extended position as the handle is moved from its projected position to its nested position; (f) biasing means interposed between the body member and the handle: (i) for biasing the handle toward its nested position; (ii) for maintaining play-free engagement between the handle and the body structure when the bolt is in its extended position; and, (iii) for maintaining a play-free driving connection between the handle and the bolt when the bolt is in its retracted position; and, (g) the connecting means being operable to disengage the receiving formation when the bolt is extended and the handle is nested, the connection means including bolt actuator means extending through the back wall opening and being operably connected to the handle and to the receiving formation for moving the bolt from its extended position toward its retracted position when the handle is moved from its nested position to its projected position, and for moving the bolt from its retracted position toward its extended position when the handle is moved from its projected position to its nested position, the bolt actuator being operable to disengage the bolt when the bolt is in its extended position and the handle is in its nested position. A flush-mountable door lock, comprising: (a) a body structure having side and back walls which cooperate to define a forwardly facing recess, and having an opening formed through the back wall; (b) an elongate bolt slidably supported on the body structure at a location behind a portion of the back wall, the bolt being movable between an extended position wherein the bolt is extended with respect to the body structure, and a retracted position wherein the bolt is retracted with respect to the body structure, the bolt having a receiving formation communicating with the back wall opening; (c) detent means interposed between the body structure and the bolt for selectively releasably retaining the bolt in its retracted and extended positions, and for assisting in moving the bolt to and positioning the bolt in its retracted and extended positions once the bolt closely approaches these positions; (d) a handle mounted on the body structure and being movable between a nested position wherein the handle is nested within the recess and a projected position wherein a substantial portion of the handle projects from the recess; (e) connecting means extending through the opening and into the receiving formation for establishing a driving interconnection between the handle and the bolt which is operative to move the bolt out of its extended position and toward its retracted position as the handle is moved from its nested position to its projected position, and which is operative to move the bolt out of its retracted position and toward its extended position as the handle is moved from its projected position to its nested position; (f) biasing means interposed between the body member and the handle: (i) for biasing the handle toward its nested position; (ii) for maintaining play-free engagement between the handle and the body structure when the bolt is in its extended position; and, (iii) for maintaining a play-free driving connection between the handle and the bolt when the bolt is in its retracted position; (g) the connection means being operable to disengage the receiving formation when the bolt is extended and the handle is nested; (h) a through-hole formed in the bolt having one end opening toward the body structure; (i) a mounting sleeve formed from plastics material being carried in the through-hole; (j) a closed-ended hole being formed in the mounting sleeve and having an open end facing toward the body structure; and, (k) the detent means including a detent member positioned in the closed-ended hole together with spring means biasing the detent member toward the body structure for receiving the detent member when the bolt is in its retracted and extended positions.

이 특허에 인용된 특허 (1)

Svoboda ; James. Latch mechanism for doors and the like. USP1978074098101.

이 특허를 인용한 특허 피인용횟수: 46

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Flush-type door lock

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이 특허에 인용된 특허 (1)

이 특허를 인용한 특허 피인용횟수: 46

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Flush-type door lock

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이 특허에 인용된 특허 (1)

이 특허를 인용한 특허 피인용횟수: 46

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