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GB2304808A - A window stay incorporating a locking catch. - Google Patents

A window stay incorporating a locking catch. Download PDF

Info

Publication number
GB2304808A
GB2304808A GB9618754A GB9618754A GB2304808A GB 2304808 A GB2304808 A GB 2304808A GB 9618754 A GB9618754 A GB 9618754A GB 9618754 A GB9618754 A GB 9618754A GB 2304808 A GB2304808 A GB 2304808A
Authority
GB
United Kingdom
Prior art keywords
stay
arm
window
locking
window stay
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB9618754A
Other versions
GB9618754D0 (en
Inventor
Ronald Percival Davis
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of GB9618754D0 publication Critical patent/GB9618754D0/en
Publication of GB2304808A publication Critical patent/GB2304808A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05DHINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D15/00Suspension arrangements for wings
    • E05D15/28Suspension arrangements for wings supported on arms movable in horizontal plane
    • E05D15/30Suspension arrangements for wings supported on arms movable in horizontal plane with pivoted arms and sliding guides
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05DHINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D11/00Additional features or accessories of hinges
    • E05D11/08Friction devices between relatively-movable hinge parts
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2800/00Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/74Specific positions
    • E05Y2800/742Specific positions abnormal
    • E05Y2800/744Specific positions abnormal cleaning or service
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00Application of doors, windows, wings or fittings thereof
    • E05Y2900/10Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/13Type of wing
    • E05Y2900/148Windows

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wing Frames And Configurations (AREA)

Abstract

A friction window stay has a locking catch to hold the window in one or more fixed positions. The catch comprises an arm 11 pivotally connected at 12 to the sash mounting member 2A, and has means 13 at, or towards, the other end that can engage the arm 3. The means may comprise a protrusion 13 that engages in a groove or slot 14 in the link 3 with detents 14b and 14d, or it may comprise an arm end region of channelled cross section which engages in hook shaped recesses at the edge of the link 3. To enable further opening, or closing, of the stay it is first necessary to slightly close, or open, the stay to allow manual disengagement of the latch. A further link between the frame mounting member 1 and the link 3 may be provided.

Description

FIELD OF INVENTION My present invention comprises a locking catch for a window stay which locks the window stay and a window sash carried by the stay at a fixed angle of opening.
BACKGROUND Various devices for limiting the angle or extent by which a window may be opened are known Such devices are used in multi-storied buildings for example, for safety reasons.
SUMMARY OF INVENTION The present invendon provides an improved or at least alternative form of locking catch for a window stay.
In broad terms the invention may be said to comprise a window stay incorporating a locking catch, the locking catch including a locking arm pivotally connected at one end to the sash mounting member of the window stay, and comprising means at or towards the other end of the locking arm which can engage an arm of the window stay pivotally connected to the frame mounting member of the window stay and which opens away from the frame mounting member as the stay is opened, to hold the stay in a fixed position of opening, release of the locking catch to cubic further opening or closing of the window atsy first requiring 'tat the window stay be closed or opened slightly to allow disengagement of the locking arm In one form the locking catch comprises a protrusion on the other end of the locking arm, and a slot in the arm of the window stay into which the protrusion engages and moves during opening and closing of the stay, and the slot comprises at least one detent portion into which the protrusion is engageable to hold the stay in a fixed position of opening.
In another form the locking arm comprises a protrusion on the end of the locking arm, and a hook shaped recess including a detent portion is formed on an edge of the window stay arm into which the locking arm is engageable to bold the slay in a fixed position of opening.
Preferably the window stay comprises a frame mounting member and sash mounting member aid at least a long arm aid a tort inn pivotally connected between te frame and sat mounting members, which is preferably also a friction window stay comprising friction bearings or pivot joints, and the locking arm is pivotally connected to the sash mounting member of the stay and engages the long arm of the stay.
DESCRIPTION OF DRAWINGS Window stays incorporating preferred forms of locking catch of the invention are illustrated in the accompanying drawings by way of example, wherein: Fix 1 is a view from onc sidc of one of window stay incorporating a preferred form of locking catch shown with the stay opened as much as is possible in hard outline with the locking catch engaged, and showing in phantom outline the stay only partially opened and the locking catch engaged to lock tile stay in Ibis partially open position, Figure 2 is a view of part of the stay of Figure 1 in the direction of arrow A of Figure 1 when the stay is closed, Figure 3 is a view from one side of another form of window stay incorporating a preferred form of locking catch similar to that of Figures 1 and 2, shown with the stay opened as much as is possible in hard outline (this stay has a wider angle of opening) and the locking catch engaged, and showing in phantom outline the stay only partially opened and the locking catch engaged to lock the slay In this partially opea Figure 4 is a view from one side of a window stay similar to that of Figure 1 and incorporating another preferred form of locking catch shown with the stay opened as much as is possible in hard outlinc with the locking catch engaged, and showing in phantom outline the stay only partially opened and the locking catch engaged to lock the stay in this partially open position, Figure 5 is a view of part of the stay of Figure 4 in the direction of arrow B of Figure 4 when the stay is closed, Figure 6 is a cross-sectional view of the stay of Figure 4 when the stay is closed, along line I-I of Figure 4.
DESCRIPTION OF PREFERRED FORMS All of the stays shown in the drawings have a frame plae 1 and sash plate 2 which when the stay is fitted to a window are attached to the window frame and sash All of the stays have interconnecting arms including a long arm 3 and short arm 4. The frame and sash plates and arms of the stay will typically be formed from stainless steel or could a1t=ativeiy be formed of aluminium for example.
In the stays of Figures 1 and 2, and 4 to 6, the sash ends of the long arm 3 and short arm 4 arc pivotally connected to tin sat plate 2 by pivot joints 7 and 8 which are preferably friction pivot joints. Similarly, the frame ends of the long arm 3 and short arm 4 are connected to the frame plate 1 by pivot joints 9 and 10 which are preferably friction pivot joints.In use the stay can be moved from its fully extended or open position shown in hard outline in Figures 1 and 4 wherein the sash plate and a sash mounted thereto (sash not shown) at at an angle to the window aperture, to or towurds its closed position (or vice versa) by pulling (or pushing) on handles sultably mounted to the window sash In Figures 1 and 4 the stay is shown in phantom outline only partially opened and typically the window would be opened to this extent to allow some ventilation for example.
Referring specifically to the stay shown in Figures 1 and 2, the sash plate has an extending end 2a A locking ann 11 is pivotally connected at one end to the extending end 2a of the sat plate by a pivot joint 12. Preferably the locking arm 11 is =4 to the sat plate on the same side as the long arm 3 (see Figure 2). Part way along the length of the locking arm 11 the arm comprises a protrusion i3 which cxtcnds towards the long arm 3. Towards its outer end the long arm 3 has a slot 14 formed in it as shown. Typically the slot would extend right through the matcrial of the long arm 3 but alternatively the slot may comprise a shallow slot only part way through the thickness of the long arm 3. The protrusion 13 from the locking arm 11 extends into the slot 14. As the stay is opened and closed, the protrusion 13 win move along the length of the slot 14 Sam the inner end to the outn end of tile slot in tile long arm 3 and vice versa, and as this occurs the locking arm 11 will be caused to pivot about its joint 12 to the sash plate.
At its outer end the slot 14 in the long arm is shaped with a detent portion 14b as shown.
The arrangement is such that when the window stay is fully opened, the protrusion 13 can be engaged into the outer detent portion 14b of the slot to lock the window stay and sash in this position (locking arm in dotted lines). The degree of friction applied during forming of the pivot joint 12 by which the locking arm is connected to the sash plate 2 may be relatively light so that cach time the window sash is opened the protrusion 13 will drop into the outer detent portion 14b of the slot 14 under gravity, at least in a side hung window, or may be greater such that it is necessary to manually push the locking ann into position when the window is fully opened. The locking arm is moved by its end 11a When the window is fully closed the protrusion 13 from the locking arm 11 will move to the other end 14c of the slot 14.Once the locking arm has been engaged into the outer detent portion 14b, to close the window further the window sash must be pushed open slightly more and then the locking arm must be manually pushed upwardly in the direction of arrow E in Figure 1 to the position in which file locking arm is shown in hard outline in Figure 1, to di the protrusion 13 fiom the outer detent portion 14b of the slot The window sat may then be closed.
In the stay Shown in Figure 1 the slot includes another detent portion 14d nesr the inner end of the dot 14 into which the protrusion 13 may be engaged when the stay is only partially opened as shown in phantom outline in Figure I. Again, depending on the degree of friction applied during manufacture at the pivot joint 12 between the locking arm mm 11 and the sat plate 2, file arrangement may be such that the protrusion 13 will drop into the inner detent portion 14d of the slot every time the sash is opened from its fully closed position, or alternatively may be such tilat to engage the protrusion 13 into the inner detent portion 14d the locking arm must be manually pressed. In both cases, one the locking arm has been engaged into the inner detent portion 14d, to open the window further the window sash must be closed slightly and then the locking arm @ust be pushed upwardly to disengage the protrusion 13 from the detent portion 14d of the slot The window sash may then be pushed further open A benefit of this arrangement is that it is difficult for small children to do this to open the window beyond the partially open position so that the locking catch acts also as a safety catch Similarly to close the window when it is locked fully open the window must be opened further shightly and the locking arm manually disengaged from the outer detent portion of the slot, and then the window can be fully closed It may be desirable to lock the window in its fully open position to prevent it fiam being blown shut by wind for example.
The locking catch and window stay shown In Figures 1 and 2 incorPorates locking at both a partially open and the filly open positions of the window stay hut in an alternative form of window stay locking at only one or other of these positions may be provided. Alternatively again, a second or third detent portion of the slot 14 similar to the inner detent portion 14d may be provided along the length ofthe slot 14 to give two or three additional positions at varying degrees of opening in which the locking catch may be engaged to lock the window.
The window stay of Figure 3 is similar to that of Figures 1 and 2 exccpt that it incorporates an additional arm 20 connected by pivot joints 2i and 22 between the long arm 3 and frame plate 1 as shown, and the pivot joint 9 between the long arm 3 and frame plate 1 is a sliding rather i than pivotjoint The pivot 9 moves up the frame plate in the direction of mow C as the stay is opened and returns in the diction of arrow D as the stay is closed. This window stay geometry enables the stay to be opened to a wider angle than the stay of Figures 1 and 2 This is illustrated in Figure 3 where the window stay is shown in its fully open position In bard outline.The locking catch of the window stay of Figure 3 is vuy similar to that of the window stay of Figure 1, except that the slot 14 in the long arm 3 is extended beyend the outer detent portion 14b, as shown at 14c, so that the locking catch does not prevent the stay from being fully opened to the wider angle of opening possible with this stay geometry. The outer detent portion 14b locks the stay nearly fully open but not completely open to the maximum possible, in this case.Again, to close the window when the locking is is engaged to hold the window in its near fully opened position, the window nuist be opened further slightly and the locking catch manually disengaged before the window stay can be closed. In this version, again additional detent portions of the slot may be provided along the length of the slot to give additional positions in which the window stay may he locked at varying degrees of opening.
The window stay shown in Figures 4 to 6 is similar to that of Figures 1 and 2 but incorporates a different form of locking catch The locking catch does not incorporate the protrusion 13 and there is no slot 14 in the long arm 3. Instead of the slot 14, the inner edge of the icrig arm 3 is formed with a hook wed recess and instead of the protrusion 13 the locking catch it includes a right angle part 41 which extends over the Inner edge of the long arm 3 (see Figures 5 and 6) and runs along this inner edge as Its fly is opened and closet The Irart 41 of the locking catch 11 which cngages the hook recess 40 in the edge of the long arm is shown in Figure 5. Typically the locking arm may bc formed so as to have a general channel shape comprising on one side the part 41 and on the other side a wall 42.When the window stay is opened from its fully closed position, as the stay approaches a partially open position as shown in phantom outline in Figure 4, the part 41 on the end of the locking arm 11 will engage into the hook recess in the edge of the long arm 3. The hook recess 40 includes a detent portion 40a beneath which the locking arm engages so that as before, to disengage the locking catch to open the window further, the window sash must be slightly closed to enable the locking arm 11 to be manually released and the window can then be opened further. It will be difficult for small children to do this so that the locking catch acts as a safcty catch which may be used to lock the window sash in a partially open position.
Again, a series of two or more similar book shaped recesses 40 may be provided along the inner edge of the long arm 3 enabling the window sash to be Jocked in a number of positions of varying degrees of opening The channel shaped nature of the locking arm 11 incorporating the side wall 42 along the other side of the locking arm ensures that as the window stay is dosed, the inner aid 42a of the wall 42 will rim along the outer edge of the long arm 3 to ensure the locking catch pivots to its own closed position Although not shown, the outer edge of the long arm 3 may incorporate a hook recess near the outer end of the long arm 3 3 which is a reverse image tb the hook portion 40 described above so that the locking arm may tben be used to lock the stay in its fully open position. To release the fly the window sash would be opened fimhcr slightly and lin the locking Inn 11 manually disengaged to allow the window to be closed.
The locking catch of the invention may serve as a locking catch to be used to lock a window sash in a partially open or fully open positian, acting as a safety catch to prevent the window from being easily opened beyond a partially open position by small children. In addition the locking catch may act to hold the window sash in a fixed position of opening to injimise the risk of damage to the sash by wind gusts for example. The locking catch of the invention is simple and unobtrusive.
The foregoing describes the invention including a preferred form thereof.
Alterations and modifications as will be obvious to those skilled in the art are intended to be incorporated within the scope thereof.
The reader's attention is directed to all papers and documents which are filed concurrently with or previous to this specification in connection with this application and which are open to public inspection with this specification, and the contents of all such papers and documents are incorporated herein by reference.
All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and/or all of the steps of any method or process so disclosed, may be combined in any combination, except combinations where at least some of such features and/or steps are mutually exclusive.
Each feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise. Thus, unless expressly stated otherwise, each feature disclosed is one example only of a generic series of equivalent or similar features.
The invention is not restricted to the details of the foregoing embodiment(s). The invention extends to any novel one, or any novel combination, of the features disclosed in this specification (including any accompanying claims, abstract and drawings), or to any novel one, or any novel combination, of the steps of any method or process so disclosed.

Claims (8)

CLAIMS:
1. A window stay incorporating a locking catch, the locking catch including a locking ann pivotally connected at one and to the sash mounting menber of the windy and comprising means at or towards the other end of the locking arm which can engage an arm of the window stay pivotally connected to the frame mounting member of the window stay and which opens away from the frame mounting member as the stay is opened, to hold the stay in a fixed position of opening. release of the locking catch to enable further opening or closing of the window stay first requiring that the window stay be closed or opened slightly to allow disengagement of the locking arm.
2. A window stay according to claim 1, wherein the locking catch comprises a protrusion On the other end of the locking arm, and a slot In the arm of the window stay into which the protrusion engages and moves during opening and closing of the stay, and the siot comprises at least one detent portion into which the protrusion Is engageable to hold the stay in a fixed position of opening.
3. A window stay according to claim 2, wherein the slat comprises a dent portion into which the protrusion is engageable when the stay is fully or near fully opened and a detent portion into which the protrusion is engagcable when the stay is only partially opened.
4. A window stay according to claim 1, wherein the locking arm comprises a protrusion on the end of the locking arm towards the window stay arm, and a hook shaped recess including a detent portion is formed on an edge of the window stay arm into which the locking arm is engageable to hold the stay in a fixed position of opening.
5. A window stay according to claim 4, wherein a hook striped recess including a portion is formed on an edge of the window stay arm into which the locking arm ii engageable when the stay is fully or near fully opened, and a hook shaped recess ineluding a detent portion is formed on an odge of the window stay arm into which the locking arm is CCgaaeable when the nsy is only partially open
6. A window stay according to any one of claims 1 to 5, wherein the window stay comprises a frame mounting member and sash mounting member and at least a long ann and @ short arm pivotally connected between the frame and sash mounting members and the locking arm is pivotally connected to the sash mounting member of the stay and engages the long arm of thc Stay.
7. A window stay incorporating a locking catch, substantially as berein described with roference to either of Figures 1 and 2, and Figures 4 to 6.
8. A window stay incorporating a locking catch, substantially as berein described with reference to Figure 3.
GB9618754A 1995-09-11 1996-09-09 A window stay incorporating a locking catch. Withdrawn GB2304808A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NZ27298795A NZ272987A (en) 1995-09-11 1995-09-11 Window stay has a locking catch that locks the stay and a sash carried by the stay at a fixed angle of opening

Publications (2)

Publication Number Publication Date
GB9618754D0 GB9618754D0 (en) 1996-10-23
GB2304808A true GB2304808A (en) 1997-03-26

Family

ID=19925423

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9618754A Withdrawn GB2304808A (en) 1995-09-11 1996-09-09 A window stay incorporating a locking catch.

Country Status (2)

Country Link
GB (1) GB2304808A (en)
NZ (1) NZ272987A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006078169A1 (en) * 2005-01-24 2006-07-27 Intropia As Child safety lock for reversible window hinges
US20120036781A1 (en) * 2010-08-16 2012-02-16 Runk David Window with Opening Control Mechanism
CN110118040A (en) * 2019-03-19 2019-08-13 派阁国际(香港)有限公司 A kind of hinge arrangement

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112696106A (en) * 2020-10-15 2021-04-23 佛山瓦瑟门窗科技有限公司 High-bearing flat-open hinge with flat groove for preventing indoor side from falling

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2184483A (en) * 1985-11-25 1987-06-24 Kva Spil Ltd Turnable window arrangements
GB2225377A (en) * 1988-10-06 1990-05-30 Crittall Warmlife Ltd Stay assembly particularly for windows
GB2276203A (en) * 1993-03-19 1994-09-21 Ronald Percival Davis Friction stay with releasable arm to limit opening

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2184483A (en) * 1985-11-25 1987-06-24 Kva Spil Ltd Turnable window arrangements
GB2225377A (en) * 1988-10-06 1990-05-30 Crittall Warmlife Ltd Stay assembly particularly for windows
GB2276203A (en) * 1993-03-19 1994-09-21 Ronald Percival Davis Friction stay with releasable arm to limit opening

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006078169A1 (en) * 2005-01-24 2006-07-27 Intropia As Child safety lock for reversible window hinges
US20120036781A1 (en) * 2010-08-16 2012-02-16 Runk David Window with Opening Control Mechanism
US8418404B2 (en) * 2010-08-16 2013-04-16 Andersen Corporation Window with opening control mechanism
CN110118040A (en) * 2019-03-19 2019-08-13 派阁国际(香港)有限公司 A kind of hinge arrangement
CN110118040B (en) * 2019-03-19 2021-08-03 派阁国际(香港)有限公司 a hinge structure

Also Published As

Publication number Publication date
NZ272987A (en) 1997-05-26
GB9618754D0 (en) 1996-10-23

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)