Flush lock for casement window and method of operating the same
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
E05C-019/10
E05B-005/00
E05C-009/10
E05B-015/00
E05C-001/06
E05C-001/12
E05C-001/04
E05C-001/10
E05B-003/00
출원번호
US-0793820
(2015-07-08)
등록번호
US-9777509
(2017-10-03)
발명자
/ 주소
Minter, Peter J.
Ruspil, Mathew D.
출원인 / 주소
Interlock USA, Inc.
대리인 / 주소
Delio, Peterson & Curcio LLC
인용정보
피인용 횟수 :
0인용 특허 :
47
초록▼
A low profile actuating window lock for casement windows having a handle actuate a lifter that slides vertically on a fork component in slidable communication with the window lock casing, the handle pivotable about the lifter and pivotable about a restrictor arm that pivots relative to the casing, a
A low profile actuating window lock for casement windows having a handle actuate a lifter that slides vertically on a fork component in slidable communication with the window lock casing, the handle pivotable about the lifter and pivotable about a restrictor arm that pivots relative to the casing, allowing the handle to rotate fully from the locked position to the unlocked position with low clearance from the window frame. The pivot points of the handle, lifter, restrictor arm configuration allow for an over center linkage that prevents back driving the casement window lock.
대표청구항▼
1. A casement window lock for securing a window sash to a casement window frame, said lock comprising: a casing having an elongated horizontal sidewall with a shorter vertical dimension, said casing including elongated side members, and tracks on at least one side member extending along an inside su
1. A casement window lock for securing a window sash to a casement window frame, said lock comprising: a casing having an elongated horizontal sidewall with a shorter vertical dimension, said casing including elongated side members, and tracks on at least one side member extending along an inside surface thereof, said tracks including a first track substantially horizontal and extending along said casing elongated horizontal sidewall, and a second track having at least one angled portion extending vertically relative to said first track's horizontal position;a restrictor arm pivotally attached at one end to said casing, and pivotally attached at the other end to an intermediate point between a free first end and a second end of a handle;a fork component including:an attachment portion for engaging a lock bar;an attachment for slidably retaining a lifter;a protrusion for slidably engaging said first track; andsaid lifter in slidable contact with said fork, including:an extending protrusion for slidably engaging said second track;an attachment for pivotally connecting said lifter to said second end of said handle;said handle in pivotal communication with said restrictor arm at one end of said handle, and in pivotal communication with said lifter at an intermediate point on said handle, wherein said handle pivotably attaches to said lifter, and is not directly attached to said casing; andwherein, when said handle is rotated to unlock said lock, said handle pivots about said lifter and said restrictor arm, respectively, causing said fork component to traverse horizontally in a first direction about said first track while simultaneously causing said lifter to shift vertically as said lifter traverses said second track, and when said handle is rotated to lock said lock, said handle pivots about said lifter and said restrictor arm, respectively, causing said fork component to traverse horizontally in a second direction opposite said first direction about said first track while simultaneously causing said lifter to shift vertically as said lifter traverses back on said second track. 2. The casement window lock of claim 1 wherein said fork component's attachment for slidably retaining a lifter includes a lifter track for slidably communicating with said lifter such that a portion of said lifter fits within said lifter track and moves vertically relative to said fork component when actuated by said handle. 3. The casement window lock of claim 1 including a plurality of hinges or pivot points forming an over center linkage to prevent back driving said lock. 4. A casement window lock for securing a window sash to a casement window frame, said lock comprising: a casing having an elongated horizontal sidewall with a shorter vertical dimension, said casing including elongated side members, and tracks on at least one side member extending along an inside surface thereof, said tracks including a first track substantially horizontal and extending along said casing elongated horizontal sidewall, and a second track having at least one angled portion extending vertically relative to said first track's horizontal position;a restrictor arm pivotally attached at one end to said casing, and pivotally attached at the other end to a handle;a fork component including:an attachment portion for engaging a lock bar;an attachment for slidably retaining a lifter;a protrusion for slidably engaging said first track; andsaid lifter in slidable contact with said fork, including:an extending protrusion for slidably engaging said second track;an attachment for pivotally connecting said lifter to said handle;said handle in pivotal communication with said restrictor arm at one end of said handle, and in pivotal communication with said lifter at an intermediate point on said handle; andwherein, when said handle is rotated to unlock said lock, said handle pivots about said lifter and said restrictor arm, respectively, causing said fork component to traverse horizontally in a first direction about said first track while simultaneously causing said lifter to shift vertically as said lifter traverses said second track, and when said handle is rotated to lock said lock, said handle pivots about said lifter and said restrictor arm, respectively, causing said fork component to traverse horizontally in a second direction opposite said first direction about said first track while simultaneously causing said lifter to shift vertically as said lifter traverses back on said second track;a plurality of hinges or pivot points forming an over center linkage to prevent back driving said lock, wherein said over center linkage includes: a first hinge point rotatably joining said handle to said lifter;a second hinge point rotatably joining said handle to said restrictor arm;a third hinge point rotatably joining said restrictor arm to said casing; andsuch that when said handle is in an unlocked position, said first hinge point is between said second and third hinge points, and said second hinge point is below an action line connecting said first and third hinge points, and when said handle is in said locked position, said second hinge point is between said first and third hinge points, and said second hinge point is below an action line connecting said first and third hinge points. 5. The casement window lock of claim 1 wherein said fork component's protrusion for slidably engaging said first track includes an extension attached to or integral with said fork component, extending perpendicular to said horizontal casing sidewall for slidable engagement within said first track. 6. The casement window lock of claim 1 wherein said lifter's protrusion for slidably engaging said second track is attached to or integral with said lifter, extending perpendicular to said horizontal casing sidewall for slidable engagement with said second track.
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이 특허에 인용된 특허 (47)
Timothy, E. Erik; Minter, Peter, Actuator for use in fenestration systems.
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