[특허]Handle operable rotary latch and lock

The Eastern Company (Cleveland OH 02)

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특허 상세정보

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내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Handle operable rotary latch and lock

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	E05C-003/26
미국특허분류(USC)	70/208 ; 70/472 ; 292/240
출원번호	US-0577717 (1995-12-22)
발명자 / 주소	Weinerman Lee S. (Medina OH) Arthurs Scott A. (Brunswick OH)
출원인 / 주소	The Eastern Company (Cleveland OH 02)
인용정보	피인용 횟수 : 60 인용 특허 : 17

초록
▼

A slam-capable, flush-mountable, paddle handle operated rotary latch having a pan-shaped housing employs a single rotary jaw that is releasably retained in its latched position by a rotary pawl, with the latch having spaced first and second housing side plates that sandwich the rotary jaw, the rotary pawl and a torsion spring that biases the jaw toward an open position, with the side plates defining aligned first and second U-shaped notches that cooperate with a third U-shaped notch formed in the rotary jaw for concurrently receiving and latchingly retaining a suitably configured strike formation, with the first housing side plate being rigidly connected to the pan-shaped housing, and with the second housing side plate being rigidified in close proximity to its U-shaped notch by an integrally formed flange that extends transversely to bridge between the housing side plates. The pawl defines a release trigger which, when tripped, permits the jaw to be pivoted by the spring to an open position. An operating arm is connected to the housing for pivotal movement along a back wall of the housing for tripping the trigger in response to operation of the handle. The operating arm has opposed end regions, one of which engages the release trigger and is guided for movement by extending through a slot formed in the first side plate, the other of which is guided for movement by a backwall-mounted guide, and is engageable by a lockable cam for selectively permitting and preventing the handle and arm from moving to trip the trigger.

대표
청구항
▼

A flush-mountable, handle-operable rotary lock for being mounted as a unit on a closure for releasably retaining the closure in a closed position by latchingly engaging a suitably configured strike formation that is located within relatively close proximity to the rotary lock when the closure is in its closed position, comprising: a) a flush-mountable handle and housing assembly including: i) a one-piece, flush-mountable, pan-shaped housing for mounting on a closure adjacent a mounting opening formed in the closure, with the housing having back and side wall portions that cooperate to define a forwardly facing recess, with the housing also having a substantially flat front mounting flange that extends in an uninterrupted manner about a front perimeter of the recess, with a major back wall portion being substantially flat and extending in a back wall plane that generally parallels a front plane in which the mounting flange extends, and with a back wall opening formed through the major back wall portion; ii) an operating handle configured to be nestable within the recess at a location on the front side of the major back wall portion; iii) pivot means connecting the operating handle to the pan-shaped housing for pivotal movement between a normal, non-operated position nested with the recess at a location on the front side of the major back wall portion, and an operated position wherein a normally nested portion of the handle projects forwardly from the recess; b) a rotary latch assembly rigidly connected to the pan-shaped housing, including a rotary latch housing that has: i) a one-piece, elongate, generally rectangular first housing side plate having opposed end regions near opposite ends of the length thereof, having a first side surface that extends lengthwise between the opposed end regions, and defining a first U-shaped notch that opens through the first side surface at a location near one of the opposed end regions of the first housing side plate; ii) a one piece, elongate, generally rectangular second housing side plate having opposed end regions near opposite ends of the length thereof, having a second side surface that extends lengthwise between the opposed end regions, and defining a second U-shaped notch that opens through the second side surface at a location near one of the opposed end regions of the second housing side plate, with the first and second side surfaces extending in spaced, substantially parallel relationship, and with the second U-shaped notch being substantially aligned with the first U-shaped notch; iii) spacer means for extending transversely between, for rigidly connecting with, and for maintaining a substantially parallel relationship between the first and second housing side plates, with the spacer means including a first spacer that extends along a first transverse axis that intersects each of the first and second housing side plates at a location that is relatively near to the other end regions thereof, and with the spacer means also including a second spacer that extends along a second transverse axis that intersects each of the first and second housing side plates at a location that is substantially mid-way between the opposite ends thereof; c) plural connection means rigidly connecting the rotary latch housing to the pan-shaped housing, including a plurality of tab-like projections formed integrally with a chosen one of the first and second housing side plates, with at least one of the tab-like projections extending along and being rigidly connected to a chosen side wall portion of the pan-shaped housing, and at least another one of the tab-like projections extending along and being rigidly connected to the major back wall portion at a location near where said at least one of the tab-like projections extends along and is rigidly connected to said chosen side wall portion; d) with the rotary latch assembly additionally including a rotary jaw and a rotary pawl that extend substantially within a common plane located between the first and second housing side plates, with the rotary jaw being connected to the second spacer and being rotatable through a limited range of angular movement about the second transverse axis between latched and unlatched positions but being spring-biased toward its unlatched position, with the rotary pawl being connected to the first spacer and being movable relative to the rotary latch housing about the first transverse axis between jaw-retaining and jaw-releasing positions to selectively release and retain the rotary jaw in its latched position but being spring-biased to move the rotary pawl toward its jaw-retaining position as the rotary jaw moves to its latched position, with the rotary jaw defining a third U-shaped notch that is configured to cooperate with the first and second U-shaped notches to concurrently receive and to latchingly retain within the confines of the first, second and third U-shaped notches a suitably configured strike formation when the rotary latch assembly latchingly engages the strike formation, and with a selected one of the first and second housing side plates being strengthened and enhanced in rigidity adjacent its associated U-shaped notch by the close proximity presence thereto of a transversely extending flange that is formed integrally with said selected housing side plate; e) an operating arm connected to the major back wall portion for pivotal movement along the rear of the major back wall portion between primary and secondary positions about a pivot axis that extends substantially perpendicular to the major back wall portion, with the operating arm defining three spaced formations, with a first of the three formations being movable adjacent the back wall opening when the operating arm moves between its primary and secondary positions, with a second of the three formations being located generally one side of said pivot axis and being movable adjacent the rotary pawl of the rotary latch assembly to move the rotary pawl to release the rotary jaw from its latched position in response to movement of the operating arm from its primary position to its secondary position, and with a third of the three formations being located generally on an opposite side of said pivot axis and being spaced from the first and second of the three formations and being movable along a path of travel between a first position and a second position in response to movement of the operating arm between its primary and secondary positions; d) locking means for being connected to the pan-shaped housing and for providing a locking member that is movable into and out of said path of travel to selectively block and permit movement of the operating arm between its primary and secondary positions; e) projection means for extending through said back wall opening, for being rigidly connected to a selected one of the operating handle and the first of the three formations of the operating arm, and for being engaged by the other of the operating handle and the first of the three formations for establishing a driving connection between the operating handle and the operating arm that will cause the operating arm to move from its primary position toward its secondary position in response to movement of the operating handle from its non-operated position to is operated position, and for blocking movement of the operating handle from its non-operated position to its operated position when the locking member is moved into said path of travel to block movement of the operating arm from its first position to its and second position; and, f) first guide means for defining a first passage of limited length paralleling said back plane within which at least a part of the first of the three formations is movable during movement of the operating arm relative to the pan-shaped housing between the primary and secondary positions of the operating arm, and second guide means for defining a second elongate passage of limited length paralleling said back plane within which at least a part of the third of the three formations is movable during movement of the operating arm between the primary and secondary positions of the operating arm, with said first and second passages being configured to assist in confining said relative movement of the operating arm so as to limit such movement to pivotal movement about said axis to help ensure that other movement of the operating arm that might defeat the action of the lock is resisted.

이 특허에 인용된 특허 (17)

이 특허를 인용한 특허 피인용횟수: 60

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특허 상세정보

Handle operable rotary latch and lock

초록
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청구항
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이 특허에 인용된 특허 (17)

이 특허를 인용한 특허 피인용횟수: 60

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특허 상세정보

Handle operable rotary latch and lock

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이 특허에 인용된 특허 (17)

이 특허를 인용한 특허 피인용횟수: 60

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IPC 상세정보(version : 201201)

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