EP0959211A2 - Mécanisme de verrouillage pour fenêtres - Google Patents

Mécanisme de verrouillage pour fenêtres Download PDF

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Publication number
EP0959211A2
EP0959211A2 EP99303297A EP99303297A EP0959211A2 EP 0959211 A2 EP0959211 A2 EP 0959211A2 EP 99303297 A EP99303297 A EP 99303297A EP 99303297 A EP99303297 A EP 99303297A EP 0959211 A2 EP0959211 A2 EP 0959211A2
Authority
EP
European Patent Office
Prior art keywords
ribs
lock
locking mechanism
lock member
strip
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Withdrawn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
EP99303297A
Other languages
German (de)
English (en)
Other versions
EP0959211A3 (fr
Inventor
Colin John Sherratt
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.)
Winkhaus UK Ltd
Original Assignee
Winkhaus UK 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 Winkhaus UK Ltd filed Critical Winkhaus UK Ltd
Publication of EP0959211A2 publication Critical patent/EP0959211A2/fr
Publication of EP0959211A3 publication Critical patent/EP0959211A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C9/00—Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing
    • E05C9/18—Details of fastening means or of fixed retaining means for the ends of bars
    • E05C9/1808—Keepers
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
    • E05B15/02—Striking-plates; Keepers; Bolt staples; Escutcheons
    • E05B15/0205—Striking-plates, keepers, staples
    • E05B15/021—Strikers having multiple positions for the bolt
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C17/00—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
    • E05B15/0046—Ratchet mechanisms
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C9/00—Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing
    • E05C9/18—Details of fastening means or of fixed retaining means for the ends of bars
    • E05C9/1825—Fastening means
    • E05C9/1833—Fastening means performing sliding movements
    • E05C9/185—Fastening means performing sliding movements parallel with actuating bar

Definitions

  • the present invention relates to locking mechanisms for releasably locking two components together, which components are normally in sliding relationship to one another at the time of engagement or disengagement.
  • the invention relates to window and door locking mechanisms.
  • Partial closure mechanisms are generally particularly vulnerable to attempted forced entry.
  • industry standard eg. "Euro-groove”
  • the present invention is applicable to various types of windows and doors, including casement types and tilt-and-turn types.
  • the present invention provides a locking mechanism comprising:
  • the present invention provides a lock component comprising a strip having a leading edge and a trailing edge, a first face of the strip including an engagement surface defined by a plurality of ribs thereon extending transverse to a closure axis of said strip extending between said leading and trailing edges, and a disengagement surface laterally adjacent said engagement surface with respect to said closure axis, the disengagement surface being relatively smooth in a direction parallel to said closure axis.
  • FIG 1 there is shown a presently preferred embodiment of a lock assembly according to the invention, installed as a window lock.
  • a window frame 1 of a standard profile adapted to receive various items of window furniture and typically manufactured of PVC, may correspond to the top, bottom or either side of the window, dependent upon hinging arrangements.
  • a window sash 2 also of a standard profile adapted to receive various items of window furniture, is shown in closed position adjacent to the window frame.
  • surface 3 corresponds to the outside of the window frame
  • surface 4 corresponds to the outside of the window sash
  • channel 5 carrying a rubber seal (not shown) for compressing against outer surface 3 of the frame profile to form a weather-tight seal
  • channel 6 carrying a rubber seal (not shown) for compressing against a glazing unit (not shown) installed against inner wall 7.
  • the locking mechanism comprises a rack member 10, a lock housing member 30 and a lock member 50 which are shown in more detail in figures 2, 4 and 5 respectively.
  • the rack member comprises a strip 11 which includes, on a front surface thereof, a plurality of parallel ribs 12 which extend across a part of the front surface hereinafter referred to as the engagement surface 14.
  • the remainder of the front surface is relatively smooth and provides what is hereinafter referred to as the disengagement surface 15.
  • the strip 11 is supported adjacent the window frame profile 1 by a support post 16 which, as best viewed in figure 2f, extends upwards from a fixing plate 17 to a proximal end of the strip 11.
  • the support post 16 is affixed to the window frame 1 using known techniques.
  • the free end (distal end) 18 of the strip 11 will be referred to as the leading end, and the end 19 proximal to the support post will be referred to as the trailing end.
  • the ribs 12 comprise a series of teeth 20, best viewed in figure 3, which teeth have a leading edge profile 21 which is preferably moderately inclined with respect to the plane of the engagement surface 14. In a preferred embodiment, the angle between the plane of the engagement surface 14 and the tooth leading edge 21 is approximately 40°.
  • the teeth 20 preferably have a trailing edge profile 22 which is perpendicular or near perpendicular to the plane of the engagement surface 14. In a preferred embodiment, particularly as shown in figure 3c, the trailing edge profile is re-entrant. In other words, the top corner of the tooth 20 overhangs an edge of the base of the tooth, and preferably the angle between the trailing edge profile 22 and the plane of the engagement surface 14 is approximately 94°, ie. 4° from orthogonal.
  • trailing edge profile may include a re-entrant profile only over a part of the height of the tooth.
  • the teeth 20 have rounded corners as exhibited in figure 3c, tooth 20a, rather than angular corners as exhibited in figure 3c, tooth 20b.
  • the teeth 20 each have a longitudinal axis which is transverse to the axis of the strip (ie. the strip axis which extends between the leading end 18 and the trailing end 19).
  • the teeth axes are slightly off-perpendicular to the strip axis, preferably approximately 6° off perpendicular.
  • the strip 11 is formed from a resilient plastics material, such as Nylon 6,6, with or without glass or spring steel reinforcement, or from KevlarTM.
  • a resilient plastics material such as Nylon 6,6, with or without glass or spring steel reinforcement, or from KevlarTM.
  • Many alternative materials may be used, such as spring steel, stainless steel or high strength zinc alloy.
  • the housing 30 comprises a framework 31 in which the strip 11 is received through aperture 32 and in which the lock member is received in aperture 33.
  • the framework 31 provides an arm 34 which restrains the reverse face 23 of the strip when it is engaged in the housing.
  • the leading edge 35 of the restraining arm 34 ie. the edge facing the direction of insertion of the leading edge 18 of the strip 11, indicated by arrow A
  • the housing 30 is secured to the window sash 2 by suitable bolts or screws (not shown) through fixing holes 36 at the top and bottom of the housing.
  • the housing 30 partly resides in an industry standard sized groove 8 (figure 1) in the sash frame, which also carries an actuator drive rod mechanism to be described hereinafter.
  • the housing 30 is formed from an appropriate material such as high strength zinc alloy, stainless steel, GRP or KevlarTM.
  • Lock member 50 comprises a plate 54 whose front surface defines an engagement surface 51 which includes a plurality of parallel ribs 52 extending across the front surface in similar manner to that described in relation to strip 11.
  • the ribs comprise a series of teeth 60 of corresponding pitch to those of the strip 11.
  • the teeth 60 have a leading edge profile 61 which is preferably moderately inclined with respect to the plane of the engagement surface 51.
  • the angle between the plane of the engagement surface 51 and the tooth leading edge 61 is approximately 40°.
  • the teeth 60 preferably have a trailing edge profile 62 which is perpendicular or near perpendicular to the plane of the engagement surface 51.
  • the trailing edge profile is re-entrant.
  • the top corner of the tooth overhangs the edge of the base of the tooth, and preferably the angle between the trailing edge profile 62 and the plane of the engagement surface 51 is approximately 94°, ie. 4° from orthogonal.
  • the teeth 60 each have a longitudinal axis which is transverse to the axis of the lock member 50 (ie. the lock member axis which extends between a leading end 64 and a trailing end 65, in which the leading end is the first end to meet the strip 11 when closing the window sash 2).
  • the teeth 60 axes are slightly off-perpendicular to the lock member axis, and preferably approximately 6° off-perpendicular as particularly shown in figure 5.
  • the lock member 50 is formed from a high strength zinc alloy, stainless steel, GRP or KevlarTM.
  • the lock member 50 further includes a shaft 55 extending from the rear face of the plate 54 defining the engagement surface 51.
  • Shaft 55 is adapted to pass through a hole in an actuator drive rod 70 (seen in cross-section in figure 1), being retained therein by suitable means such as swaging the shaft 55 over the drive rod 70, or providing a nut 56 at the end of the shaft 55.
  • the actuator drive rod 70 extends longitudinally along the channel or groove 8 in the sash 2, according to well known mechanisms.
  • the width w l (figure 5a) of the lock member 50 is preferably approximately equal to, or slightly less than, half the width w s (figure 3a) of the strip 11, and the width w e of the engagement surface 14 of the strip is preferably approximately equal to the width w l .
  • the width w l of the lock member is preferably also approximately equal to the width w d of the disengagement surface 15 of the strip 11.
  • the lock member 50 is able to slide, within the lock-receiving aperture 33 of the housing 30, under the control of the actuator drive rod 70, so that it opposes and makes contact with either the engagement surface 14 of the strip 11, or the disengagement surface 15 of the strip, or a part of both. In figure 1, this movement will be understood to be into and out of the plane of the drawing.
  • a small gap 72 is preferably provided between the rear face of the plate 54 and the actuator drive rod 70 to allow the lock member 50 a degree of freedom in a direction parallel to the axis of the shaft 56, ie. orthogonal to the plane of the engagement surfaces 51 and 14.
  • a leaf spring 80 as shown in figure 6. This leaf spring urges the engagement surface 51 of the lock member 50 into locking engagement with the engagement surface 14 of the strip 11, but enables the lock member 50 to ride up and over the inclined leading edges 21 of the teeth 20 when the lock member is sliding over the strip in one direction only.
  • the sash 2 is brought into position along side window frame 1, at which point the leading end 18 of the rack member 10 enters the aperture 32 of housing 30.
  • the first of these is an "autolocking" mode, in which the engagement surface 51 of the lock member 50 is already in line with the engagement surface 14 of the strip 11 during the closing operation.
  • the second mode is a manual locking mode where the engagement surface 51 of the lock member 50 is not in line with the engagement surface 14, but fully in line with the disengagement surface 15 of the strip 11 during the closing operation.
  • the leading edge of the first tooth 20 of the leading end 18 of the strip 11 collides with the lock member 50 which is biassed toward the restraining arm 34.
  • the leading edge profile 21 of each tooth 20 forces the lock member to recede into the groove 8 against the bias of the leaf spring 80 in a ratchet-and-pawl type action, allowing strip 11 to pass through the housing 30, but only in the closing direction.
  • the trailing edge profile 22 of the teeth 20 prevents reversal of this closing action. It will be understood that the closing action can be halted at any desired point, at which the window will be secured in a partly open, "ventilation" position (figure 7b). The fully closed position is shown in figure 7c and figure 1.
  • the window sash 2 is brought into the closure position while the lock member 50 is displaced along the channel 8 by the actuator drive rod 70, so that engagement surface 51 of the lock member 50 is in line with the disengagement surface 15 of the strip.
  • the sash 2 can move freely in the opening and closing directions as the teeth 60 of the lock member pass easily over the disengagement surface 15 of the strip in either direction.
  • the actuator drive rod is used to drive the lock member longitudinally within the channel 8 (ie. into or out of the plane of the drawing), in the housing 30, until the parallel sets of teeth 20 and 60 interlock with one another.
  • the ribs 12 are pitched at, for example, 6° to the axis perpendicular to the closure direction "A" (figure 4)
  • the actuator drive rod 70 moves the lock member 50 to its engaged position, a further slight displacement of the sash frame occurs in the closure direction caused by the pitched ribs, thereby tightening the closure of the window. In the fully closed position, this serves to compress the seal in channel 5 (figure 1).
  • the actuator drive rod 70 is deployed in the reverse direction to drive the lock member 50 so that it slides across the strip 11, off the engagement surface 14 and onto the disengagement surface 15.
  • the window sash 2 is then free to open and close.
  • the leaf spring 74 and gap 72 could, in fact, be omitted from the mechanism (making allowances for any required clearances), as a ratchet-and-pawl type closure operation is not required.
  • the inclined leading edge profile 21 of the teeth 20 is also not required.
  • the teeth can then have any suitable profile.
  • the locking mechanism as described above can readily be used in any orientation around a window casement, and is ideally suited for multipoint locking with each lock member 50 being driven by a common actuating mechanism linked through the actuator drive rod or a series of actuator drive rods linked around the window sash.
  • the mechanism is highly resistant to being forced or jemmied. Any attempt to bend the strip 11 toward the window frame 1 to attempt to disengage corresponding teeth 20, 60 is prevented in the preferred embodiment by the restraining arm 34 and by the action of the re-entrant trailing edge tooth profiles 22,62 which provide a further clamping force. Any attempt to distort the sash 2 to move the lock member 50 so as to prise it away from the strip 11 is defeated because the restraining arm 34 will pull the resilient strip 11 in the same direction as the distortion of the sash 2, preventing the teeth 20, 60 from disengaging. Only movement substantially parallel to the ribs, in the correct direction of the actuator drive rod 70, will allow the teeth 20, 60 to disengage.
  • the length of the ribs ie. approximately the width w l and w s can be made as long as required for a given degree of security.
  • Slightly re-entrant teeth 20, 60 are preferred so that any attempt to force the window open merely results in tighter engagement of the engaged teeth. High locking strength is assured by a large total surface area of engaged teeth, ie. the cumulative trailing edges of all engaged teeth.
  • the window sash and frame could be reversed with respect to the members attached thereto.
  • the first and second components need not be window and door components.
  • the principle can be applied to, inter alia, reusable cable ties, luggage straps, child safety locks for cupboards, bicycle locks, car steering wheel locks, padlocks, other lock out devices, and reusable label tabs.
  • multiple parallel engagement surfaces 14 separated by one or more disengagement surfaces 15 on the rack member 10 could be provided as alternating rows, each having a width w e and each adapted to engage with an appropriate portion of the lock member 50.
  • the strip 11 could also be surface mounted onto the window frame 1 or other component, in which case the lock housing member 30 does not require the restraining arm 34 providing aperture 32.
  • the locking mechanism herein described is highly resistant to being forced, as most forces which can be applied will generate opposing forces thereto.
  • the operating forces required for normal opening and closing are, however, very low.
  • the number of ventilation positions available is high, owing to the small pitch (spacing) of the teeth 20 and their extent is simply determined by the length of rack member 10.
  • the ratchet-and-pawl facility (optional) allows a partially opened window to be closed regardless of whether the operator possesses a key to the actuator drive mechanism, thereby offering greater security. All parts can be readily fabricated from a wide variety of corrosion resistant materials and the design allows for quick and easy assembly and full compatibility with known industry standard window sash and frame profiles.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Wing Frames And Configurations (AREA)
EP99303297A 1998-05-16 1999-04-28 Mécanisme de verrouillage pour fenêtres Withdrawn EP0959211A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9810481A GB2337554A (en) 1998-05-16 1998-05-16 Lock mechanism for a window
GB9810481 1998-05-16

Publications (2)

Publication Number Publication Date
EP0959211A2 true EP0959211A2 (fr) 1999-11-24
EP0959211A3 EP0959211A3 (fr) 2002-11-27

Family

ID=10832139

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99303297A Withdrawn EP0959211A3 (fr) 1998-05-16 1999-04-28 Mécanisme de verrouillage pour fenêtres

Country Status (2)

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EP (1) EP0959211A3 (fr)
GB (1) GB2337554A (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2821877A1 (fr) * 2001-03-12 2002-09-13 Ferco Int Usine Ferrures Entrebailleur pour porte, fenetre ou similaire equipe d'une ferrure de verrouillage du type cremone
FR2821876A1 (fr) * 2001-03-12 2002-09-13 Ferco Int Usine Ferrures Entrebailleur pour porte, fenetre ou similaire equipe d'une ferrure de verrouillage du type cremone
WO2005004960A1 (fr) * 2003-07-11 2005-01-20 Bang & Olufsen Medicom A/S Dispositif de blocage de retour mecanique
WO2011057308A1 (fr) * 2009-09-17 2011-05-19 Helmut Katherl Système de verrouillage avec fonction alarme pour un élément de construction tel que porte ou fenêtre
WO2012110373A1 (fr) * 2011-02-14 2012-08-23 Paul Hettich Gmbh & Co. Kg Dispositif servant à verrouiller des pièces mobiles l'une par rapport à l'autre

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE825222C (de) * 1945-02-21 1951-12-17 Max Ament Schloss fuer vergroesserbare Behaelter, Koffer o. dgl.
DE2449176B1 (de) * 1974-10-16 1975-07-31 Ver Baubeschlag Gretsch Co Bandseitige verriegelungsvorrichtung bei fenstern, türen o. dgl
US4773682A (en) * 1986-03-21 1988-09-27 Heinrich Saelzer Sash lock
DE4204774A1 (de) * 1992-02-18 1993-08-26 Saelzer Sicherheitstechnik Verriegelungsvorrichtung
DE29602840U1 (de) * 1996-02-17 1996-04-04 Hoppe Holding Ag Rastvorrichtung
EP0753635A1 (fr) * 1995-07-13 1997-01-15 Mecelec Industries Serrure de sûreté pour coffrets d'appareillages techniques

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL122094C (fr) * 1959-10-20
NL6702477A (fr) * 1966-03-02 1967-09-04

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE825222C (de) * 1945-02-21 1951-12-17 Max Ament Schloss fuer vergroesserbare Behaelter, Koffer o. dgl.
DE2449176B1 (de) * 1974-10-16 1975-07-31 Ver Baubeschlag Gretsch Co Bandseitige verriegelungsvorrichtung bei fenstern, türen o. dgl
US4773682A (en) * 1986-03-21 1988-09-27 Heinrich Saelzer Sash lock
DE4204774A1 (de) * 1992-02-18 1993-08-26 Saelzer Sicherheitstechnik Verriegelungsvorrichtung
EP0753635A1 (fr) * 1995-07-13 1997-01-15 Mecelec Industries Serrure de sûreté pour coffrets d'appareillages techniques
DE29602840U1 (de) * 1996-02-17 1996-04-04 Hoppe Holding Ag Rastvorrichtung

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2821877A1 (fr) * 2001-03-12 2002-09-13 Ferco Int Usine Ferrures Entrebailleur pour porte, fenetre ou similaire equipe d'une ferrure de verrouillage du type cremone
FR2821876A1 (fr) * 2001-03-12 2002-09-13 Ferco Int Usine Ferrures Entrebailleur pour porte, fenetre ou similaire equipe d'une ferrure de verrouillage du type cremone
EP1241307A1 (fr) * 2001-03-12 2002-09-18 Ferco International Ferrures Et Serrures De Batiment Entrebâilleur pour porte, fenêtre ou similaire équipé d'une ferrure de verrouillage du type crémone
WO2005004960A1 (fr) * 2003-07-11 2005-01-20 Bang & Olufsen Medicom A/S Dispositif de blocage de retour mecanique
US7383838B2 (en) 2003-07-11 2008-06-10 Bang & Olufsen Medicom A/S Mechanical return blocking device
WO2011057308A1 (fr) * 2009-09-17 2011-05-19 Helmut Katherl Système de verrouillage avec fonction alarme pour un élément de construction tel que porte ou fenêtre
WO2012110373A1 (fr) * 2011-02-14 2012-08-23 Paul Hettich Gmbh & Co. Kg Dispositif servant à verrouiller des pièces mobiles l'une par rapport à l'autre

Also Published As

Publication number Publication date
GB2337554A (en) 1999-11-24
GB9810481D0 (en) 1998-07-15
EP0959211A3 (fr) 2002-11-27

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