EP2014853A2 - Verriegelungsvorrichtung - Google Patents

Verriegelungsvorrichtung Download PDF

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Publication number
EP2014853A2
EP2014853A2 EP08252399A EP08252399A EP2014853A2 EP 2014853 A2 EP2014853 A2 EP 2014853A2 EP 08252399 A EP08252399 A EP 08252399A EP 08252399 A EP08252399 A EP 08252399A EP 2014853 A2 EP2014853 A2 EP 2014853A2
Authority
EP
European Patent Office
Prior art keywords
locking
locking device
locking member
keeper
retainer
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Withdrawn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
EP08252399A
Other languages
English (en)
French (fr)
Other versions
EP2014853A3 (de
Inventor
David Anthony Wellman
Peter James Harrison
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.)
J Banks and Co Ltd
Original Assignee
J Banks and Co 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 J Banks and Co Ltd filed Critical J Banks and Co Ltd
Publication of EP2014853A2 publication Critical patent/EP2014853A2/de
Publication of EP2014853A3 publication Critical patent/EP2014853A3/de
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B17/00—Accessories in connection with locks
    • E05B17/20—Means independent of the locking mechanism for preventing unauthorised opening, e.g. for securing the bolt in the fastening position
    • E05B17/2007—Securing, deadlocking or "dogging" the bolt in the fastening position
    • E05B17/203—Securing, deadlocking or "dogging" the bolt in the fastening position not following the movement of the bolt
    • E05B17/2034—Securing, deadlocking or "dogging" the bolt in the fastening position not following the movement of the bolt moving pivotally or rotatively
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B63/00—Locks or fastenings with special structural characteristics
    • E05B63/12—Locks or fastenings with special structural characteristics with means carried by the bolt for interlocking with the keeper
    • E05B63/128—Locks or fastenings with special structural characteristics with means carried by the bolt for interlocking with the keeper with additional bolt in the striker
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C3/00—Fastening devices with bolts moving pivotally or rotatively
    • E05C3/02—Fastening devices with bolts moving pivotally or rotatively without latching action
    • E05C3/04—Fastening devices with bolts moving pivotally or rotatively without latching action with operating handle or equivalent member rigid with the bolt
    • E05C3/041—Fastening devices with bolts moving pivotally or rotatively without latching action with operating handle or equivalent member rigid with the bolt rotating about an axis perpendicular to the surface on which the fastener is mounted
    • E05C3/045—Fastening devices with bolts moving pivotally or rotatively without latching action with operating handle or equivalent member rigid with the bolt rotating about an axis perpendicular to the surface on which the fastener is mounted in the form of a hook
    • 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
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B65/00—Locks or fastenings for special use
    • E05B65/08—Locks or fastenings for special use for sliding wings
    • E05B65/0835—Locks or fastenings for special use for sliding wings the bolts pivoting about an axis parallel to the wings
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C7/00—Fastening devices specially adapted for two wings
    • E05C2007/007—Fastening devices specially adapted for two wings for a double-wing sliding door or window, i.e. where both wings are slidable

Definitions

  • This invention relates to a locking device, and in particular to a locking device for a vertical sliding sash window.
  • Vertical sliding sash windows comprising two or more window panels, at least one of which can slide in a substantially vertical direction in use to open and close the window, have been in long term and widespread use.
  • a locking device is typically fitted in order to prevent unauthorised access through the window.
  • the locking device for a vertical sliding sash window typically comprises a locking member mounted to one of the window panels which can engage a keeper mounted to the other (or another) of the window panels. When the window is closed the locking member can be moved to engage the keeper and prevent relative sliding movement of the window panels and thereby secure the window in the closed position.
  • a known locking device for a vertical sliding sash window is made and sold by the present Applicant, under the name "Cam-Lok”.
  • the locking member is mounted within a housing and can undergo limited rotation.
  • the locking member has a curved locking element which can project from the housing and engage the keeper, the curved locking element being almost concentric with the axis of rotation.
  • the lack of concentricity causes the keeper to be pulled towards the housing as the locking member is rotated into (further) engagement with the keeper.
  • the keepers of both of these devices have a slot designed to accept the locking member, the slot having a projecting tab.
  • the curved locking element can move around the back of the tab in the locking condition so as to hold the locking member and keeper together.
  • Both of these prior devices are lockable, in that a key-operated lock is provided which can prevent unauthorised rotation of the locking member from its engaged condition (in which the locking member projects from the housing and engages the keeper) to its disengaged condition (in which the locking member is retracted into the housing and does not engage the keeper).
  • the locking member is a rotatable plate, the curved locking element of the locking member comprising a rail along the edge of the plate.
  • the curved locking element extends beyond the plate to form the leading end of the locking member which is mounted in cantilever.
  • the presence of the plate limits the size of the tab which can project into the slot in the keeper, as the plate lies alongside the tab in the engaged condition of the devices. It is therefore not possible to enhance the security by increasing the size of the tab without reducing the thickness of the plate (and thereby weakening the locking member), and similarly it is not possible to increase the strength of the locking member by making the plate thicker without reducing the size of the tab(s) and making it easier to force the engaged locking member out of the keeper.
  • the windows of a building are known to be considered vulnerable by housebreakers and unauthorised intruders, and are often the route by which unauthorised access is sought to be obtained to a building.
  • Many different types of locking devices are available for the different window types, and the locking devices for vertical sliding sash windows have two major disadvantages to overcome.
  • the locking device is normally mounted upon the surface of the window panel, and in the most common case of a two-panel window the locking device will be fitted at substantially the centre of the window.
  • the locking device is therefore clearly visible to most occupants of the building, and the locking device must therefore be aesthetically pleasing and at the same time not too obtrusive, as well as functionally robust.
  • Locking devices for windows are the subject of official standards in many countries. In the UK the official standard is BS 7950. Many of the locking devices which are presently available for vertical sliding sash windows fail to meet this standard.
  • a locking device comprising a locking member and a keeper, the locking member being mounted for rotation in a housing, the locking member having a curved locking element, the curved locking element being able to project beyond the housing and into a slot of the keeper, the slot having a tab which can be engaged by the curved locking element, the locking member having a leading end, the locking device having a key-operated lock, characterised by a movable retainer having an active condition in which the retainer engages and retains the leading end of the curved locking element.
  • the inventors have realised that during rotation of the locking member from its disengaged condition to its engaged condition the leading end of the locking member is caused to move out of the housing and then back into the housing as it undergoes its arcuate movement.
  • the inventors take advantage of the return of the leading end into the housing to provide a retainer which can engage the leading end and secure the locking member against unauthorised rotation away from the engaged condition.
  • the retainer is driven to its active condition by the key-operated lock.
  • a part of the retainer can be located in an opening in the leading end of the locking member.
  • the retainer is a metallic rod.
  • the retainer is pivotably mounted upon a boss, the retainer pivoting between its active condition and an inactive condition.
  • the tab extends across the full width of the slot.
  • the locking member does not need to be in the form of a plate with a rail providing the curved locking element and can comprise substantially the curved locking element alone.
  • the tab can extend across the slot so as to reduce the likelihood that the locking member can be forced past the tab by an intending intruder, and thereby to increase the security of the locking device.
  • the keeper comprises a first part and a second part, the first part including the tab and the second part comprising a cover element.
  • the first part and the second part are made of different materials, the first part being made of a material providing the required strength for the tab, the second part being made of a material suited to provide the aesthetically pleasing form.
  • the first part and the second part together define the slot.
  • the locking device 10 is adapted for fitment to a vertical sliding sash window.
  • the locking device 10 comprises a housing 12 for the locking member 14 ( Fig.3 ) and a keeper 16.
  • the keeper 16 is fitted to the frame of one of the window panels 2 (in this case the bottom horizontal frame part 4 of the upper window panel 2), and the housing 12 is fitted to the frame of the other window panel 6 (in this case the top horizontal frame part 8 of the lower window panel 6).
  • one or both of the window panels 2,6 are mounted for vertical sliding movement in channels (not shown), so that in use (when the locking device is in its disengaged condition) the window panels 2,6, and the respective keeper 16 and housing 12 can slide vertically relative to one another.
  • the locking device 10 will typically be clearly visible to the occupant of the building, and is therefore made aesthetically pleasing in front view.
  • the visible parts of the housing 12 and keeper 14 are of cooperating form and matching surface finish. (In Fig.1 the frame parts 4,8 are shown in dotted outline and the mounting flange 18 would not be visible when the window is closed).
  • the housing 12 has an opening through which projects a boss 20 ( Fig.3 ).
  • a boss 20 Fig.3
  • the boss 20 carries an operating handle 22, and to the bottom of the housing 12 the boss 20 carries the locking member 14. In this way, the operating handle 20 and the locking member 14 are mounted to move together, and in particular to rotate together upon or around the boss 20.
  • the locking member 14 is therefore mounted for rotation relative to the housing 12. As shown in Figs. 3,4 and 5 the locking member 14 can be rotated (by way of the operating handle 22) between the disengaged condition of Fig.3 (in which the curved locking element is wholly within the housing), and the engaged condition in Figs. 4 and 5 (in which a large part of the curved locking element 24 projects beyond the housing 14 and into the keeper 16).
  • the locking member 14 has a curved locking element 24 which is substantially concentric with the rotational axis of the locking member 14, i.e. with the central axis of the boss 20. Ideally, however, the inner surface 26 of the curved locking element 24 converges towards the rotational axis from its leading end 30. This convergence provides a "camming" action for the locking device, in known fashion.
  • the curved locking element 24 can taper in the vertical plane so as to provide a camming action also in the vertical direction if required.
  • the keeper 16 is shown in more detail in Figs. 6 and 7 .
  • the keeper has a slot 32 and a tab 34 which spans the slot 32. It will be understood that as the operating handle 22 is rotated from the disengaged condition shown in Fig.3 to the engaged condition shown in Fig.4 , the leading end 30 of the locking member 14 is caused to project from the housing 12 and to enter the slot 32 to one side of the tab 34, pass around the tab 34 and pass back through the slot 32 to the other side of the tab 34, finally re-entering the housing 12. Accordingly, in the engaged condition shown in Fig.4 the locking member passes around the tab 34 and thereby secures the housing 12 and keeper 16 together.
  • the tab 34 is curved slightly so as match the curvature of the inner surface 26 of the curved locking element 24, and also that the inner surface 26 has a small flattened region 36 which engages the tab 34 in the engaged condition of the locking member 14.
  • the locking member 14 adjacent to the leading end 30 the locking member 14 has an opening which can accommodate a part 40 of the retainer 42.
  • the opening is an aperture through the leading end 30 of the locking member 14, but in other embodiments the opening is a recess or blind hole in the leading end.
  • the retainer 42 is a formed metal rod and is mounted upon a boss 44 of the housing 12.
  • the housing 12 also carries a stop 46 for the retainer 42, and a raised button 50 providing a detent for the retainer 42.
  • the boss 20 of the housing 12 also mounts a key-operated lock 52.
  • the key-operated lock 52 is connected to an actuator 54 which can engage the retainer 42.
  • the key-operated lock normally rotates with the operating handle 22, so that the actuator 54 normally rotates with the locking member 14. Accordingly, unless the lock 52 is actuated the actuator 54 will rotate with the locking member 14 between the disengaged and engaged conditions shown in Figs. 3 and 4 respectively.
  • the correct key is inserted into the lock 52 and the key rotated relative to the operating handle 22.
  • the actuator 54 engages the retainer 42 adjacent to the part 40 and drives the retainer 42 to rotate anticlockwise as drawn, past the button 50, and to drive the part 40 into the aperture in locking member 14, as shown in Fig.5 .
  • the key When it is desired to unlock the locking device 10 the key is rotated in the opposite direction which drives the actuator to move anticlockwise as drawn in Fig.5 to its position shown in Fig.4 .
  • the retainer 42 has a leg 56 which is engageable by the actuator 52, anticlockwise rotation of the actuator 52 driving the retainer 42 to pivot clockwise as drawn, past the button 50, and thereby releasing the part 40 from the aperture in the locking member 14. Thereafter, the operating handle 22 can be rotated to move the locking member to its disengaged condition.
  • the lock 52 can be carried by the boss 20 for the operating handle 22, as this minimises the volume of the housing, avoids the need for a mechanical link to be made between the lock and the locking member, and provides an aesthetically pleasing housing.
  • the provision of a lock upon the boss of the operating handle has not generally been preferred as an intending intruder can seek to disable the lock by applying force to a locked operating handle.
  • the preferred form of keeper 16 is shown in Figs. 6 and 7 .
  • the keeper 16 comprises a first part 60 and a second part 62, which parts are connected together in the assembled keeper. Making the keeper 16 in two parts allows the most suitable materials to be used for each part.
  • the first part 60 which includes the tab 34 must be sufficiently strong to withstand the forces expected to be applied by an intending intruder.
  • the first part 60 is ideally a steel pressing.
  • the second part 62 is the only part which is visible when the keeper is mounted upon a window panel and the window is closed ( Fig.1 ), and requires much less mechanical strength than the first part 60.
  • the second part 62 can therefore be made of a less rigid material such as a die-cast metal, and have a form and surface finish to match the housing 12.
  • the second part 62 has two mounting holes 64 therethrough for receiving fixing screws or the like (not shown), and the first part 60 has two aligned holes 66 (only one of which is partially visible in Fig.6 ).
  • the second part 62 also has two formed lugs 70 which can be located into aligned holes 72 in the first part 60.
  • the lugs 70 In the assembled keeper of Fig.7 , the lugs 70 have been deformed into rivets to secure the two parts 60,62 together.
  • the rivets are supplemented by the fixings passing through the holes 64 and 66, so that there are four fastenings holding the two parts 60, 62 together and the keeper 16 is substantially rigid.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Wing Frames And Configurations (AREA)
EP08252399A 2007-07-12 2008-07-12 Verriegelungsvorrichtung Withdrawn EP2014853A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB0713529.6A GB0713529D0 (en) 2007-07-12 2007-07-12 Locking device

Publications (2)

Publication Number Publication Date
EP2014853A2 true EP2014853A2 (de) 2009-01-14
EP2014853A3 EP2014853A3 (de) 2012-05-09

Family

ID=38461456

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08252399A Withdrawn EP2014853A3 (de) 2007-07-12 2008-07-12 Verriegelungsvorrichtung

Country Status (2)

Country Link
EP (1) EP2014853A3 (de)
GB (2) GB0713529D0 (de)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2424033A (en) 2005-03-11 2006-09-13 Caldwell Hardware A fastener, particularly a sash window lock

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE34642C (de) * J. lederer in Wien I., Landgerichtsstr. 20 Sicherheitsschlofs mit Drehriegel
FR323020A (fr) * 1902-07-15 1903-02-21 Boyer Jules Felix Système de serrure à pene annulaire
GB191111199A (en) * 1910-10-12 1911-10-26 Edwin Aaron Donat Improvements in and relating to Sash-locks.
US1393835A (en) * 1920-11-30 1921-10-18 Schechter Joseph Lock mechanism
US1493707A (en) * 1922-01-10 1924-05-13 Schechter Joseph Lock mechanism
FR898500A (fr) * 1943-05-28 1945-04-24 Dispositif de sécurité pour la fermeture des portes

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2424033A (en) 2005-03-11 2006-09-13 Caldwell Hardware A fastener, particularly a sash window lock

Also Published As

Publication number Publication date
EP2014853A3 (de) 2012-05-09
GB0713529D0 (en) 2007-08-22
GB0812858D0 (en) 2008-08-20
GB2451002B (en) 2013-03-27
GB2451002A (en) 2009-01-14

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