EP1106765A2 - Reibungsscharnier - Google Patents

Reibungsscharnier Download PDF

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Publication number
EP1106765A2
EP1106765A2 EP20000309668 EP00309668A EP1106765A2 EP 1106765 A2 EP1106765 A2 EP 1106765A2 EP 20000309668 EP20000309668 EP 20000309668 EP 00309668 A EP00309668 A EP 00309668A EP 1106765 A2 EP1106765 A2 EP 1106765A2
Authority
EP
European Patent Office
Prior art keywords
arm
linkage
movement
guide track
abutment
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Withdrawn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
EP20000309668
Other languages
English (en)
French (fr)
Inventor
David Avocet Hardware plc Kent
John Avocet Hardware plc Rogers
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.)
Avocet Hardware Ltd
Original Assignee
Avocet Hardware Ltd
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 Avocet Hardware Ltd filed Critical Avocet Hardware Ltd
Publication of EP1106765A2 publication Critical patent/EP1106765A2/de
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D15/00—Suspension arrangements for wings
    • E05D15/28—Suspension arrangements for wings supported on arms movable in horizontal plane
    • E05D15/30—Suspension arrangements for wings supported on arms movable in horizontal plane with pivoted arms and sliding guides
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D11/00—Additional features or accessories of hinges
    • E05D11/10—Devices for preventing movement between relatively-movable hinge parts
    • E05D11/1007—Devices for preventing movement between relatively-movable hinge parts with positive locking
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D15/00—Suspension arrangements for wings
    • E05D15/40—Suspension arrangements for wings supported on arms movable in vertical planes
    • E05D15/44—Suspension arrangements for wings supported on arms movable in vertical planes with pivoted arms and vertically-sliding guides
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING 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
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/13—Type of wing
    • E05Y2900/148—Windows

Definitions

  • This invention relate to a friction hinge assembly for mounting an openable closure member on a fixed frame.
  • the invention has been developed primarily, though not exclusively, in connection with a friction hinge assembly for mounting an openable window frame in a fixed frame, and in which a respective hinge assembly can be mounted on one or both of the top and bottom horizontal frame members of the openable frame when the window is a "side hung" window; alternatively, when the window is a "top hung" window, a pair of friction hinge assemblies will be provided, arranged one on each respective frame member of the opening window frame.
  • a friction hinge assembly in such a way that it allows limited or restricted opening movement only, and typical maximum gap separation which might be allowed is about 100mm. The purpose of this is to prevent children jumping out of an upstairs window, or may be required in institutions to prevent residents jumping out also.
  • Restricted friction hinge assemblies are presently provided in both top hung windows and also side hung windows, and test standards are set for this type of window, to make the window able to resist any normal level of force used to force the window open beyond the restricted arc of movement, since for obvious reasons any restricting mechanism provided must be capable of resisting any ordinary attempt to override the mechanism. Therefore, the authorised designs of restricted friction hinge must be capable of withstanding test standards which are set, and therefore the restriction mechanism provided must be quite strong.
  • the invention therefore has been developed with a view to provide an improved design of restricted friction hinge assembly, which is strong enough to meet test standards, but which has a facility which allows the restriction mechanism to be overridden by an authorised person in any particular situation in which it is required to allow greater opening movement of the window, but to provide for automatic return of the restriction mechanism to its ordinary restricted function upon subsequent closure of the window.
  • This latter feature is important, to provide a safeguard against unintentional failure to return the restriction mechanism to its ordinary function, which might otherwise occur in the absence of any automatically operating restoring arrangement.
  • a restricted friction hinge assembly for mounting an openable closure member, such as a side hung or top hung window frame, on a fixed frame member of a fixed frame, said hinge assembly having a fixed guide track which is securable to said fixed frame member and a linkage which is connectable to a frame element of the openable closure member, and which is capable of carrying out opening and closing movement relative to the fixed guide track, in which the linkage comprises:
  • a restricted friction hinge assembly therefore is able to provide restricted or limited opening of a window or other closure member, and so as to provide any required maximum opening space, and prevent egress by children or others during normal operation.
  • the provision of the adjustable abutment allows authorised personnel, having knowledge of the location and adjustability of the abutment, to move the abutment to a disabled position out of the path of movement of the control element, thereby allowing a greater extent of opening movement of the linkage when required e.g. to obtain egress via the window in the case of a fire, or simply to allow access to the outside of the window for cleaning purposes.
  • the automatic return of the abutment to its operating position may be obtained by any suitable means, and including: (a) spring-loading of the abutment towards its operative position or (b) providing interengagement between a part of the linkage and the abutment as the linkage carries out its closing movement.
  • the guide track is shaped to allow captive sliding movement of the slide block, in the sense that it allows the slide block to move lengthwise of the guide track, but is guided in the sense that it is not readily able to be displaced in a direction perpendicularly away from the axis of the guide track.
  • the guide track therefore has a longitudinally extending flat base surface over which the slide is movable, and short upstanding side walls which are turned inwardly, to engage over at least part of the exposed surface of the slide block and thereby hold it captive in the guide track.
  • the elongate control element takes the form of a rod shaped easily to fit and slide lengthwise along one of the side walls, and also be held captive therein.
  • the abutment is movable to the operative position in which it lies in the path of travel of the control element, and by engaging the end thereof, and this provides a strong resistance to any attempt to forcibly move the slide block a greater distance lengthwise of the guide track, in any unauthorised attempt at forcing the closure member (e.g. window) beyond its required restricted opening movement set by the engagement between the abutment and the control element.
  • this strong resistance provided by engagement between the end of the control element and the abutment also can allow the restricted friction hinge assembly of the invention to meet any required test safety standards.
  • the abutment preferably takes the form of a stop element pivotally mounted on the base of the guide track, and which may have a small upstanding projection, to allow finger or thumb manipulation by authorised personnel, when it is required to adjust the abutment to the disabled inoperative position. Such displacement of the stop then defines a clear path of movement for the control element along one of the side walls of the guide track, when authorised greater opening movement of the linkage and the window is permitted.
  • the stop element may be biased so as to tend to move back to its operative position, if required e.g. by spring loading.
  • the abutment may be arranged to maintain its inoperative position by frictional engagement with the base of the guide track, but any suitable engaging element may be connected to the linkage, provided that it is arranged so that it moves into engagement with the stop element during the movement of the linkage to the closed position, during which time the control element will be returning with the slide block to the closed position, when the control element will move past the stop element as it slides lengthwise of the side wall of the guide track.
  • the arrangement is such that, after the facing end of the control element has moved past the stop element, the stop element can then be moved back to the operative position, in the path of travel of the control element to limit its movement during a subsequent restricted opening movement of the linkage and the closure member mounted thereon.
  • an engaging element provided on the linkage to engage the stop element may comprise a depression, lug or the like mounted on the fourth arm, and which engages the stop element as the fourth arm pivots about its three pivot connections (to the guide track, to the first arm and to the fourth arm) during the closing movement.
  • a friction hinge assembly can function as an egress type of hinge as defined in claim 11, and optionally spring-loading is provided to return the abutment automatically to its operative position.
  • a restricted friction hinge assembly according to the invention is designated generally by reference 30, and which is intended to mount an openable closure member, such as a top hung window or a side hung window, on a fixed rectangular frame.
  • Friction hinge assemblies will be well known to those of ordinary skill in the art. and only the essential operating components are illustrated in the drawing which will now be described.
  • the hinge assembly 30 has a fixed guide track 31 which is securable to a fixed frame member, and the assembly 30 also includes a linkage, designated generally by reference 32, which is connectable to a frame element of an openable closure member, and which is capable of carrying out opening and closing movement relative to the guide track 31 to allow opening and closing movement of the window or other closure member to which it is secured.
  • the linkage 30 comprises a first arm 33 which is securable to the frame element of the closure member, and which has a nose 34 at one end which can engage with an end cap 35 at one end of guide track 31, when the linkage 30 is in a closed position, to provide resistance to any attempt at forced opening movement of the window relative to the fixed frame.
  • a short second connecting arm 36 is pivoted at one end 37 to an end region of the first arm 33, and at its opposite end 38 to a slide block 39 which is held captive by the inturned side walls 40 of the guide track 31, and which is movable lengthwise of the guide track 31 during opening and closing movement of the linkage 30.
  • a longer third connecting arm 41 is pivoted at one end 42 to the first arm 33, and at its opposite end (not shown) to a fixed pivot mounting provided at or near to an end of the guide track 31 opposite to the end cap 35.
  • a fourth control arm 43 is pivoted at one end 44 to the same slide block 39 on which second arm 36 is also pivotally mounted, and fourth arm 43 is pivoted at its opposite end 45 to the third longer connecting arm 41 at a position intermediate the ends of arm 41 so that the fourth arm 43 extends generally parallel to the first arm 33 to form an approximate parallelogram linkage therewith.
  • the illustrated embodiment usually permits restricted opening movement only of the linkage 30, and with a typical maximum window opening movement of about 100mm being provided.
  • an elongate control element is connected to the movable slide block 39 for movement therewith during opening and closing movement of the linkage 30, but which has its movement lengthwise of the guide track 31 limited, by means described below.
  • the elongate control element takes the form of a control rod, shown by dotted outline 46, which is also held captive within one of the side walls 40 of the guide track 31, and which moves lengthwise thereof with sliding movement of the slide block 39, until such time as it engages an abutment, designated generally by reference 47, which is mounted on the base of the guide track 31 and which has an operative position which lies in the path of travel of the control element 46 to limit the movement thereof, and thereby determine a required limit to the opening movement of the linkage 30, and therefore also of the window or other closure member mounted thereon.
  • the abutment 47 is adjustable to a disabled inoperative position out of the path of movement of the control element 46, and thereby to allow a greater extent of authorised opening movement of the linkage 30.
  • the abutment 47 in the illustrated arrangement, comprises a catch pivotally mounted on the base of the guide track 31, and which is movable against frictional opposition by finger or thumb manipulation of an upstanding lug or operating knob 48.
  • the pivotal adjustment of the abutment 47 to the disabled position will be clockwise pivoting of the abutment away from engagement with one of the side walls 40 of the guide track 31, and in a direction towards, or in engagement with the opposite side wall of the guide track.
  • the frictional engagement with the base is such that the abutment 47 maintains either the operative or the inoperative positions to which it is moved.
  • the linkage 30 is arranged to be capable of returning the abutment 47 to its operative position as the linkage moves to its closed position, whereby subsequent opening movement of the linkage can again be restricted by limiting the movement of the control element 46.
  • the control element 46 When the abutment 47 is moved to the inoperative position, the control element 46 is able to slide past the abutment 47, engaging the side wall, as the linkage 30 continues to pivot outwardly relative to the fixed guide track 31, thereby providing greater opening movement of the window.
  • control element 46 slides past the abutment 47 (which is still in its inoperative position), but after the end 49 of the control element 46 has moved clear of the abutment 47, the abutment can then be returned automatically to its operative position, in which it will again lie in the path of movement of the end 49 of the control element 46, to restrict the opening movement.
  • the linkage may be provided with any suitable engaging means to return the abutment 47 to the operative position as the linkage 30 moves to the closed position, and in the illustrated embodiment a simple lug or other depression applied to the underside of the third arm 41 may have a path of travel whereby it can engage the upstanding lug 48 of abutment 47, as the arm 41 pivots back to a position overlying the guide track 31 when closing movement will be completed.
  • the abutment 47 then moves back to its operative position, and which takes place automatically upon closing movement of the window, so that it is then in a state of readiness to apply restriction to any subsequent opening movement of the window.
  • the illustrated embodiment therefore provides a simple and reliable, and also strong restriction mechanism, which limits the opening movement, but which can be disabled by authorised personnel, when greater opening movement is required, but which automatically restores the mechanism to a mode of operation restricting subsequent opening movement following closure of the window.
  • the means of release of the restriction mechanism is accessible, when the window is only partially open.
  • the control element 46 which moves with the slide block 39 provides a simple but effective means of controlling the manner by which the mechanism operates i.e. restricted mode or authorised unrestricted opening mode, and the control element, or control rod effectively extends the slide block 39, and by virtue of its small cross sectional area, it only takes-up a small part of the available space defined within the guide track, and allows the abutment 47 to be located robustly in the path of travel of the control element when restriction to the opening movement is required.
  • the embodiment illustrated in the drawings provides a restricted friction hinge assembly of the type in which the second connecting arm 36 is pivoted at one end 37 to an end region of the first arm 33 and is pivoted at its opposite end 38 to the guide track 31 via the slidable mounting block 39 mounted for slidable movement lengthwise of the guide track 31.
  • the longer third connecting arm 41 is pivoted at one end 42 to the first arm 33 and is pivoted at its opposite end to a fixed pivot point (not shown) on the guide track 31.
  • the fourth control arm 43 is pivoted at one end 44 to the guide track 31 on the same mounting block 39 on which the second arm 36 is mounted.
  • a modified embodiment may be provided, which is able to function as an egress type of friction hinge assembly. Modification will be made to the embodiment shown in the drawing, whereby the mounting block 39 is fixed, and the bottom pivot by which third arm 41 is pivotally mounted on the guide track 31 comprises a slidable mounting.
  • a control element similar to control element 46, will then be connected to the movable slide block on which third arm 41 is pivotally mounted, and an abutment, similar to abutment 47, will be mounted on the guide track 31 and have an operative position lying in the path of travel of the control element to limit movement thereof and thereby determine a require limit to the opening movement of the linkage 32.
  • this abutment will be adjustable to a disabled and inoperative position out of the path of movement of the control element, and thereby to allow a greater extent of opening movement of the linkage 32, when it is required to function as an egress hinge.
  • the abutment 47 may be spring-loaded towards the limiting position (in which it normally restricts the lengthwise movement of the rod 46).
  • Simple manual manipulation of push button 48 against the spring-loading allows the rod 46 to move lengthwise without being impeded, so as to permit larger opening movement of the window.
  • the spring-loading presses the abutment 47 against the outer surface of the rod 46, and therefore as the window is returned to the closed position the rod 46 slides against the abutment 47 until the rod end 49 has moved past the abutment 47, and then the abutment 47 automatically snaps back to its limiting position.
  • the spring-loading is not shown (and could be a tension or compression spring as required), it could be a compression spring located between side face 50 of the abutment 47 and the adjacent inturned flange 51 of guide track 31.
  • This alternative means of automatically returning the abutment 47 to the limiting or operative position may also be provided when the hinge assembly is being employed in the "egress" mode as referred to above.

Landscapes

  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
EP20000309668 1999-12-07 2000-11-01 Reibungsscharnier Withdrawn EP1106765A2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9928847 1999-12-07
GB9928847A GB9928847D0 (en) 1999-12-07 1999-12-07 Friction hinge assembly for openable closure member

Publications (1)

Publication Number Publication Date
EP1106765A2 true EP1106765A2 (de) 2001-06-13

Family

ID=10865814

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20000309668 Withdrawn EP1106765A2 (de) 1999-12-07 2000-11-01 Reibungsscharnier

Country Status (3)

Country Link
EP (1) EP1106765A2 (de)
GB (1) GB9928847D0 (de)
TW (1) TW415504U (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105840027A (zh) * 2016-05-09 2016-08-10 佛山市金砥柱建筑装饰材料有限公司 铰链锁紧装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105840027A (zh) * 2016-05-09 2016-08-10 佛山市金砥柱建筑装饰材料有限公司 铰链锁紧装置

Also Published As

Publication number Publication date
TW415504U (en) 2000-12-11
GB9928847D0 (en) 2000-02-02

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