EP2078814A2 - Dispositif de fixation d'un cadre de fenêtre dans une ouverture au moyen d'un méchanisme à cliquet - Google Patents

Dispositif de fixation d'un cadre de fenêtre dans une ouverture au moyen d'un méchanisme à cliquet Download PDF

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Publication number
EP2078814A2
EP2078814A2 EP08251326A EP08251326A EP2078814A2 EP 2078814 A2 EP2078814 A2 EP 2078814A2 EP 08251326 A EP08251326 A EP 08251326A EP 08251326 A EP08251326 A EP 08251326A EP 2078814 A2 EP2078814 A2 EP 2078814A2
Authority
EP
European Patent Office
Prior art keywords
clip
ratchet
fixing
male
fixing means
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Withdrawn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
EP08251326A
Other languages
German (de)
English (en)
Other versions
EP2078814A3 (fr
Inventor
Graham Taylor
Alan Bruton
Shaun Watts
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.)
Gt Windows Ltd
Original Assignee
Gt Windows 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
Priority claimed from GB0800398A external-priority patent/GB2445676B/en
Application filed by Gt Windows Ltd filed Critical Gt Windows Ltd
Publication of EP2078814A2 publication Critical patent/EP2078814A2/fr
Publication of EP2078814A3 publication Critical patent/EP2078814A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B1/00—Border constructions of openings in walls, floors, or ceilings; Frames to be rigidly mounted in such openings
    • E06B1/56—Fastening frames to the border of openings or to similar contiguous frames
    • E06B1/60—Fastening frames to the border of openings or to similar contiguous frames by mechanical means, e.g. anchoring means
    • E06B1/6046—Clamping means acting perpendicular to the wall opening; Fastening frames by tightening or drawing them against a surface parallel to the opening
    • E06B1/6053—Clamping means acting perpendicular to the wall opening; Fastening frames by tightening or drawing them against a surface parallel to the opening the frame being moved perpendicularly towards the opening and held by means of snap action behind a protrusion on the border of the opening
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B1/00—Border constructions of openings in walls, floors, or ceilings; Frames to be rigidly mounted in such openings
    • E06B1/02—Base frames, i.e. template frames for openings in walls or the like, provided with means for securing a further rigidly-mounted frame; Special adaptations of frames to be fixed therein

Definitions

  • This invention relates to a fixing clip and fixing system for fixing together two members to restrict relative movement in at least one direction.
  • a secure fixing is required which is quick and simple and which will securely locate the sash in the frame aperture with no visible screws etc, so that a sash can be push fitted into an opening with a self centring effect.
  • Conventionally a number of different measures are used, including using a hinge fixing and then permanently closing the window by removing the glazed panel and screwing through the sash into the frame. This however is wasteful in terms of window furniture and also time consuming to effect. Furthermore this method is only possible where it is feasible to remove the glazed panel from the sash on site.
  • this invention provides a fixing system for fixing a panel in an opening framed by one or more frame members, said fixing system comprising a plurality of male fixing means and a plurality of female fixing means, the male means being receivable in or on the female means with a ratchet action therebetween such that in use the panel may be offered up to the opening to effect initial engagement between said male and female fixing means and thereafter urged into place and retained there by said ratchet action.
  • said male fixing means are preferably provided on the panel and said female means are provided on the frame.
  • said male fixing means have thereon a row of teeth which cooperate with a latch surface on said female fixing element.
  • Two generally parallel pairs of rows of teeth may be provided each with the teeth at generally the same pitch but the rows of one pair being offset longitudinally relative to those of the other by one half a tooth pitch with respect to each other in the insertion direction, with there being respective latch surfaces with no longitudinal offset for cooperation therewith.
  • each of said male fixing means comprises a resiliently deformable element biased into engagement with said female fixing means.
  • Said male and female fixing means have complementary engagement surfaces designed to cooperate to prevent removal of the window after installation unless released, thereby to provide lock out.
  • said complementary engagement surfaces may comprise an edge of an aperture provided on the male fixing means and a cooperating projecting portion on said female fixing means. Said complementary engagement surfaces may cooperate such that a force tending to remove the window urges the male and female means into tighter ratchet action with each other.
  • said male and female fixing means are adapted such that during initial engagement of said male and female fixing means, said male fixing means resiliently slides over said projection with said projection thereafter locating within said aperture.
  • Said male fixing means may comprise conveniently two finger elements disposed side by side and adapted to engage corresponding female portions forming part of said female fixing means, in ratchet action.
  • Said female fixing means may comprise a resilient ratchet plate and guide means for guiding said male fixing means into engagement therewith.
  • Said guide means may comprise means defining a passage along which said male fixing means may pass. Said passage may be defined by a moulded plastics base portion for attachment to one of said frame members and a plate attached thereto.
  • said ratchet action may be disengaged by insertion of a tool between the panel and an adjacent frame member.
  • this invention provides a fixing assembly for being used to fix a panel in an opening framed by one or more frame members, said fixing system comprising a male fixing means and a female fixing means, the male fixing means being engageable in or on the female fixing means with a ratchet action therebetween such that in use the panel may be offered up to the opening to effect initial engagement between said male and female fixing means and thereafter urged into place and retained there by said ratchet action.
  • this invention provides, a fixing clip for being disposed, in use, at opposing edges of two building members in generally edge-to-edge relationship, the clip providing restriction to relative movement of the two members after they are offered together, the restriction being at least in a direction opposite to the direction of offering together, said clip comprising: a first part attachable to either the first or second building member; a second part attachable to the other of said members; the first and second parts each having ratchet sections which are engageable to provide a ratchet type action for providing said restriction; characterised in that the first and second parts each have guide portions co-operable to provide at least a predetermined minimum spacing between said members, transverse to the direction of offering, when the two parts of the clip are engaged.
  • the guide portions are separate from their respective ratchet sections.
  • the ratchet portion of the first part includes at least one resilient pawl section and preferably the ratchet portion of the second part includes at least one toothed section co operable with the or each resilient pawl section to produce the ratchet action in use.
  • first and second parts are formed from two discrete elements: a resilient element including the pawl or toothed section; and a support element including the first or second guide portion.
  • the two elements are manufactured as discrete pieces but assembled together in use.
  • the resilient element is formed from sheet metal or the like.
  • the support element is formed from a plastics material or the like.
  • said guide portions are each wedge shaped having co-operable planar surfaces, each surface, in use, being in a plane oblique to the direction in which said members are intended to be offered up.
  • pawl sections are provided and preferably two or more toothed sections are provided, each for engagement with a respective pawl section.
  • the two or more toothed sections each have a row of teeth and the two or more rows are staggered so that during offering-up of the first member, only one pawl will operatively engage with one tooth at a time.
  • the first and second parts are releasable after engagement.
  • release of the parts is brought about by insertion of tooling to release the pawl from the toothed section, the insertion being possible in the same direction in which the first member was offered up to the second member.
  • this invention provides a two part clip, one part being securable to a first building member and the other part being securable to a building or the like having an inside and an outside, the two parts being engageable to hold the member to the building by means of a ratchet mechanism, the ratchet being disengageable by means of tooling to release the member from the building, the disengagement being possible from the inside and the outside of the building (but not necessarily both at the same time).
  • the tooling is insertable into a complementary aperture in the clip.
  • the complementary aperture comprises two discrete apertures and the tooling comprises two discrete elongate release tines for insertion into the apertures at the same time.
  • the invention further extends to a release tool for use in conjunction with a clip mentioned above, the tool comprising a pair of elongate release tines.
  • the invention extends to a fixing system comprising a plurality of clips as defined in any one or more of the statements above, spaced around a building member within a building aperture and providing a substantially uniform gap or overlap between said member and said aperture.
  • the invention extends yet further to a fixing clip, system, or release tool substantially as herein described with reference to the Figures.
  • FIG. 1 to 7 there is described a fixing system for fixing a dummy sash into a window frame.
  • the dummy sash is sized to fit with clearance within the window frame and the window frame is provided with the usual run up locks of tapered form so that as the dummy sash is pushed home into the frame, it is centralised.
  • the fixing system shown in Figures 1 to 7 is designed securely and semi-permanently to retain the dummy sash in the window frame in a manner which allows the dummy sash simply to be offered up to the window frame and pushed home without requiring any special tooling.
  • the dummy sash 10 comprises a sash frame 12 and a double glazed unit 14.
  • the window frame 16 defining the opening into which the dummy sash is inserted, is secured to the adjacent building structure 18 by suitable means.
  • the dummy sash will typically be rectangular in form and there will be several clip assemblies 20 disposed along each side.
  • the clip assemblies 20 comprise a male portion 22 which is secured to the sash frame 12 and a female portion 24 which is secured to the window frame 16.
  • the sash is offered up so that the male portions 22 engage the female portions 24 and then the dummy sash is pushed home (as seen in Figure 2 ) and retained there by the ratchet action.
  • the male portion 22 is made up of a sash packer element 26 and pressed metal male clip 28.
  • the sash packing element may be made of moulded plastics material and various different sash packing elements may be produced for each of a wide range of different sash frames.
  • the female portion 24 comprises a window frame packer element 30 of moulded plastics form and two pressed metal components, namely a top plate 32 and a female pawl clip element 34.
  • the window frame packer element may be designed with different configurations to allow it to interface with different window frames.
  • the male clip 28 has an anchorage edge 36 which is securely attached, e.g. by screws, to the sash frame 12 through the packer element 26.
  • Cantilevered from the anchorage edge 36 are two generally rectangular spaced flat fingers 38 of identical form.
  • Each finger 38 has a central rectangular aperture 40, the longer sides of each being bordered by a row of downwardly projecting teeth 41 (in the sense viewed in Figures 1 and 2 ).
  • the pitch of the teeth is uniform and, on each finger 38 the teeth are aligned with each other but the teeth on one finger are offset relative to the other by one half the pitch of the teeth. This can be seen in Figures 7A and B where the pitch of the teeth is shown as X and the offset between the two fingers is shown as X/2.
  • the female portion 24 is made up of the top plate 32 and the female pawl clip 34 which are secured to the window frame 16 by screws passed through the top plate and the pawl clips and the window plate packer element 30.
  • the female portion defines two locking passages 42 for receiving the respective flat fingers 38.
  • the female pawl clips comprise an anchorage edge 44 from which extend two pawl regions 46.
  • Each pawl region comprises a pawl wall 48 inclined upwardly from the plane of the anchorage edge 44 and defining two pawl surfaces 50 designed in use to be in registration with the teeth 41 of the flat fingers 38.
  • each pawl wall 48 Half way along each pawl wall 48 is an upstanding lock out tab 52.
  • the leading ends of the flat fingers 38 initially contact the lock out tabs 52 and, due to the angle of inclination, the leading ends of the flat fingers 38 ride over the lock out tabs 52 in non-return fashion, whereafter the lock out tabs are located in the rectangular apertures 40.
  • release portion 54 Extending beyond each pawl wall 48 is release portion 54 which, as described below, can be accessed by a flat blade on the interior side of the dummy sash, to deflect the pawl wall 48 and the lock out tabs 52 downwardly so that they allow withdrawal of the male clip from the locking passages 42.
  • the top plate 32 is of pressed metal and has downwardly projecting tabs 56 which provide a degree of lateral constraint for the male portion 22 as it enters the locking passages.
  • the locking plate also has two apertures 58 which receive the tips of the lock out tabs 52 and provide restraint to prevent them bending and releasing the flat fingers 38 if an attempt is made to prise the dummy sash out of the window frame using force.
  • the dummy sash is installed by offering it up the opening as previously described.
  • the flat fingers 38 enter the locking passages 42 and the leading ends of the flat fingers 38 push past the locking tabs 52 in non-return fashion and shortly thereafter the teeth 41 engage and ratchet over the pawl wall 48.
  • the dummy sash is then pushed home so that it compresses the seal 60 on the window frame.
  • the window is securely fixed and the ratchet nature of the teeth and the offset between the teeth on the fingers means that the clip effectively ratchets in increments of about 1 mm thereby allowing a fair degree of tolerance around the periphery of the frame.
  • a pallet knife or the like is slid between the seal 60 and the sash frame 12 to engage the release portions 54 and to push them downwardly. This disengages the pawl surface 50 from the teeth 41 and moves the lock out tab 52 downwardly clear of the path of the flat fingers so that the window can be withdrawn.
  • the components are designed such that, when installed, the release portion 54 projects beyond the end of the flat fingers 38.
  • Figure 8 shows a typical application of the two part clip assembly 120, 122 of this embodiment.
  • the clip 120, 122 is holding a dummy sash window frame 10 in place within an opening of window frame 112.
  • the sash 110 is restricted from moving in the direction of arrow F by a ratchet mechanism and a generally uniform gap G is obtained around the sash when it is fixed in place.
  • Figure 9 shows a first part 122 of the clip assembly in place.
  • This part of the clip comprises two discrete elements: a pawl section 116; and a guide portion 118.
  • the pawl section 116 is manufactured from pressed and resilient sheet metal, for example carbon steel sheet and the guide portion is manufactured from moulded plastics for example polypropylene.
  • the two elements are held to the window frame 112 by means of screw fixings or the like within the holes shown in both elements.
  • the screw heads have been omitted in the drawings.
  • the pawl section includes two pawls 111, which are simply cut ends of the sheet metal. Areas 111 and 115 aid release and are described below. Apertures 117 and 119 are provided for a release tool are their function is described in more detail below.
  • a ramped section 114 provides a guide for its complementary part (127 Figure 10 ) as described below.
  • Figure 10 shows a second part 120 of the clip assembly, in place.
  • This part of the clip too comprises two discrete elements: a toothed section 126; and a second guide portion 128.
  • the toothed section 126 includes two rows of teeth 121 and 121' which co-operate with the pawls 111, in a manner described more fully below.
  • a second guide ramp 127 is illustrated which co-operates with the complementary ramp part 114 shown in Figure 9 as described below.
  • the two elements are manufactured in a similar manner to the a pawl section 116 and the guide portion 118 mentioned above, and are held in place on the sash 110 in the same way as the first part of the clip.
  • Guide portions 118 and 128 support the pawl and toothed sections in use. It is intended that different size guide portions 118 & 128 can be used to suit different applications, it being necessary then only to change the plastic guide portions, the pawl/toothed metal parts remaining unchanged. This reduces the number of parts required for different applications.
  • FIGS 11 A,B&C show details of the clip element 126 and Figure 11D shows details of clip element 116 and 126.
  • the clip element 126 includes two upstanding rows of teeth 121 and 121' .
  • the Figures illustrate that the two rows of teeth have the same pitch (x in Figure 11C ) but that the pitch of the two rows is off-set by x/2, so the teeth are staggered.
  • Clip element 116 has two pawls 111 one of which engages with the teeth 121 and one of which engages with the teeth 121' to cause a ratchet effect in the direction of arrow H, as illustrated in Figure 11D .
  • the ratchet will engage a tooth every x/2 units of movement, so e.g. where x is 2 mm the ratchet can be moved in increments of just 1 mm. It has been found that teeth of 2 mm pitch can be punched from sheet metal and the punch will have a reasonable life expectancy, whereas teeth of less than 2 mm (e.g. 1 mm) require a more detailed punch and this results in premature wear of the punch. So staggering the teeth in two sets results in a fine ratchet, the tooling for which has a good useable life.
  • Figure 12 shows a side view of the clip halves 120, 122 in place on the sash 10 and frame 112.
  • the sash 110 is offered to the frame 112 in the direction of arrow H.
  • Guide ramps 114 and 127 guide the sash into place.
  • a number of clips will be in place around the sash making assembly of the sash much easier.
  • the pawls 111 engage with teeth 121 and 121' to provide the ratchet effect as described above.
  • Figure 13 shows the clip in use.
  • the clip restricts movement in the direction of arrow F and the guide ramps 114 and 127 have guided the sash into place so that a uniform gap G is maintained.
  • This provides a predetermined minimum spacing between the sash and the frame.
  • Their function is to guide the sash during fitting so that e.g. the ratchet mechanism will operate correctly and the minimum spacing is maintained to avoid overloading the ratchet mechanism and to centralise (in a direction transverse to the direction of fitting H) the sash 110 as it is pushed into the frame 112.
  • the seal 140 now acts to inhibit draughts through the window.
  • a plurality of like clips will be employed to form a fixing system which keeps the sash in place in the window frame. Since the ratchet mechanism is resilient there will be a tendency for the sash to be pushed from all directions where a clip is fitted and this will centralise the sash also.
  • the clip may be used in many applications e.g. used for fixing various profiles of wood, metal plastics or the like, or combinations of materials, and so a distinct commercial advantage obtains if disengagement of the clip can be effected from either inside or outside (or both), depending on the application of the clip.
  • Tooling 240 is inserted through gap G into U shaped receiving apertures 117 in clip part 122. Exit apertures 119 are arranged so that tooling 240 is caused to resiliently deflect release tags 115. In so doing, the pawls 111 are released from teeth 121, 121' and the clip is disengaged. Further clips can be disengaged in the same manner and, by keeping pressure on the sash 110 in the direction of arrow F, as each clip is released, the sash 110 can be freed from the frame 112.
  • the two release tines of tool 240 will be joined by a handle and more than one tool may be employed.
  • Using two (or more) unusually shaped apertures 117 makes it difficult for unauthorised removal of the sash.
  • the shape of sash 110 makes disengagement of the ratchet difficult from the inside (the side with the seal 140) and so disengaging the clip form the outside is necessary.
  • Figure 16 shows a differently shaped sash 200 fixed using the clip of the invention.
  • the shape of the different sash 200 makes disengagement of the clip difficult or impossible from the outside because gap G is replaced by an overlap O in this configuration. So the clip is designed so that it can be disengaged from the inside also, for use with sash 200. Disengagement from the inside involves forcing a flat tool 230 past seal 140. This clip is brought into engagement with inner release tags 113 (shown in Figure 9 ) and the tags are moved. This action causes disengagement of the pawls and teeth to enable removal of the sash 200.
  • any suitable materials can be used other than those described above.
  • the fixing of a dummy sash window has been described but any similar building member could be fixed using the clip system described.
  • the pawl element 22 is shown attached to a window panel and the toothed element 20 is shown attached to the sash. This arrangement could be the other way round.
  • a pawl and teeth are described as a ratchet mechanism, however other ratchet type devices could be employed, e.g. two co operating teeth formations, a sprung cam or other mechanical one-way movement mechanism (in this description 'ratchet' includes any one way movement mechanism). Means for disengagement of such alternative ratchet mechanisms will be apparent to the skilled addressee.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Clamps And Clips (AREA)
  • Connection Of Plates (AREA)
EP08251326A 2008-01-10 2008-04-04 Dispositif de fixation d'un cadre de fenêtre dans une ouverture au moyen d'un méchanisme à cliquet Withdrawn EP2078814A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0800398A GB2445676B (en) 2007-01-10 2008-01-10 Fixing clip and system

Publications (2)

Publication Number Publication Date
EP2078814A2 true EP2078814A2 (fr) 2009-07-15
EP2078814A3 EP2078814A3 (fr) 2010-03-10

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP08251326A Withdrawn EP2078814A3 (fr) 2008-01-10 2008-04-04 Dispositif de fixation d'un cadre de fenêtre dans une ouverture au moyen d'un méchanisme à cliquet

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Country Link
EP (1) EP2078814A3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2003420C2 (nl) * 2009-09-01 2011-03-02 Smits Gemert B V Montageset voor het vastzetten van een kozijn in een bouwkundig kader.
EP2455574A3 (fr) * 2010-11-19 2017-01-11 SFS Handels Holding AG Cadre de fenêtre ou de porte
GB2586314A (en) * 2019-05-15 2021-02-17 Gt Windows Ltd Window system
GB202401217D0 (en) 2024-01-30 2024-03-13 Gt Windows Ltd Window system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2163191A (en) * 1984-07-23 1986-02-19 William Graham Hitchins Modular building component
DE19829339A1 (de) * 1998-07-01 2000-01-05 Niemann Hans Dieter Befestigungsmittel eines mit einem Tragrahmen verbundenen Einsatzrahmens
US20020104277A1 (en) * 2001-02-02 2002-08-08 Carlson Martin G. Installation positioning system and method
GB2424440A (en) * 2005-03-24 2006-09-27 Springfast Ltd Window frame fixing system comprising releasable clips

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2163191A (en) * 1984-07-23 1986-02-19 William Graham Hitchins Modular building component
DE19829339A1 (de) * 1998-07-01 2000-01-05 Niemann Hans Dieter Befestigungsmittel eines mit einem Tragrahmen verbundenen Einsatzrahmens
US20020104277A1 (en) * 2001-02-02 2002-08-08 Carlson Martin G. Installation positioning system and method
GB2424440A (en) * 2005-03-24 2006-09-27 Springfast Ltd Window frame fixing system comprising releasable clips

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2003420C2 (nl) * 2009-09-01 2011-03-02 Smits Gemert B V Montageset voor het vastzetten van een kozijn in een bouwkundig kader.
EP2351901A3 (fr) * 2009-09-01 2012-06-20 Smits Gemert B.V. Ensemble d'assemblage pour la fixation d'un cadre
EP2455574A3 (fr) * 2010-11-19 2017-01-11 SFS Handels Holding AG Cadre de fenêtre ou de porte
GB2586314A (en) * 2019-05-15 2021-02-17 Gt Windows Ltd Window system
GB202401217D0 (en) 2024-01-30 2024-03-13 Gt Windows Ltd Window system

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