EP1679415A1 - A locking mechanism and parts therefor - Google Patents
A locking mechanism and parts therefor Download PDFInfo
- Publication number
- EP1679415A1 EP1679415A1 EP05256838A EP05256838A EP1679415A1 EP 1679415 A1 EP1679415 A1 EP 1679415A1 EP 05256838 A EP05256838 A EP 05256838A EP 05256838 A EP05256838 A EP 05256838A EP 1679415 A1 EP1679415 A1 EP 1679415A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bar
- engagement means
- espagnolette
- keep
- security device
- 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.)
- Granted
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 24
- 235000001674 Agaricus brunnescens Nutrition 0.000 claims description 6
- 230000000712 assembly Effects 0.000 description 4
- 238000000429 assembly Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
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
- E05C9/1825—Fastening means
- E05C9/1833—Fastening means performing sliding movements
- E05C9/185—Fastening means performing sliding movements parallel with actuating bar
-
- 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
- E05C9/02—Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing with one sliding bar for fastening when moved in one direction and unfastening when moved in opposite direction; with two sliding bars moved in the same direction when fastening or unfastening
-
- 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
- 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
- E05C9/1841—Fastening means performing sliding movements perpendicular to actuating bar
-
- 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
Definitions
- This invention relates to locking mechanisms, and in particular to a locking mechanism for an espagnolette assembly and a bar for such a mechanism.
- an espagnolette assembly comprises a drive mechanism mounted in or on a vent which, when activated by a handle, drives rods or bars which extend or retract from the sides of the vent into holes or keeps in the sides of the fixed frame.
- UK patent application GB 22701 10A describes a locking mechanism for a sash whereby a plurality of projections on an elongate carrier attached to the vent frame engage complementary retainers on the sash. The elongated carrier is shifted, to engage or disengage the plurality of projections, by means of turning a handle.
- UK patent application GB 2241531A describes a keep, or keeper, for receiving a locking pin mounted on a movable espagnolette bar such that the associated espagnolette bar is held in a closed position, and a second channel, having a respective open end for receiving the locking pin, inclined from its open end away from the first channel to restrain the espagnolette bar in a partially open position.
- espagnolette locking mechanisms offer many advantages over conventional window locks in terms of security.
- a force, applied perpendicular to the direction of travel of the locking bar will generate a rotational force around the axis of the engagement means. This force may allow sufficient movement in the window/door to facilitate the insertion of a lever or jemmy between sash and frame, thereby increasing the likelihood of the locking mechanism being forced open.
- the present invention aims to improve upon the security of the prior art locking mechanisms for espagnolette assemblies.
- the improved locking mechanism does so by providing a security device for preventing said rotation around the engagement means, thereby preventing movement of the window/door away from the frame.
- the present invention is particularly applicable to an espagnolette assembly, it is envisaged that the locking mechanism herein described could be used in other types of vent lock and, indeed, in other apparatus requiring a secure fastening means.
- a bar for an espagnolette locking mechanism comprising means for engaging a keep, wherein the bar further comprises a security device which follows the engagement means in use into a keep without engaging the keep, wherein the security device prevents rotation about the engagement means during a security attack.
- the engagement means is a pin or spigot designed to engage a keep.
- the pin or spigot is mushroom headed and may be attached to the moveable bar by any means known in the art, including riveting and welding.
- the engagement means may be made from metal, plastics or other suitable material.
- the security device is a pin or spigot.
- the pin or spigot may be any shape suitable for engaging a keep, including mushroom headed.
- the security device may be attached to the moveable bar by any means known in the art; preferably, it is rigidly fixed to the bar.
- the security device may be made from metal, plastics or other suitable material.
- the security device engages the same keep as the engagement means.
- the spacing between the engagement means and the security device is ⁇ 5cm.
- the bar is flat. However, it may be other shapes.
- the engagement means and security device extended substantially perpendicular to the bar, although these angles may be altered if appropriate.
- the engagement means and security device each have substantially the same height.
- an espagnolette assembly comprising at least one bar as herein claimed.
- the espagnolette assembly may further comprise a keep having two engagement slots.
- One engagement slot will allow the window to be engaged in the locked position whilst the other will allow the window to be engaged in a night vent position.
- the engagement slots are defined by flanges to retain the mushroom-headed engagement means within the slot.
- a vent comprising a sash, a fixed frame and an espagnolette assembly as herein described.
- An espagnolette assembly ( Figure 1) comprises two espagnolette rods 2, a drive mechanism 4 and a handle 6 to be mounted on a sash 8.
- Each espagnolette rod 2 comprises a fixed bar 10, further comprising a slot 12, and a moveable bar 14, further comprising a engagement means 16, which is mushroom headed 17, and a security pin 18.
- the fixed bar 10 is secured to the sash 8 and drive mechanism housing 20.
- the moveable bar 14 is positioned in a groove 22 between the sash 8 and fixed bar 10.
- the moveable bar 14 is moveably attached to the fixed bar 10 via the engagement means 16 which extends through the slot 12 in the fixed bar 10 and is flanged to prevent separation of the bars.
- the moveable bar 14 is also attached to gears within the drive mechanism 4.
- the espagnolette assembly ( Figure 1) is activated by the handle 6, which rotates the gears within the drive mechanism 4. These gears extend or retract the moveable bars 14 in opposite directions.
- the bars can engage various keeps on the vent frame by methods known in the art.
- a locking mechanism of the present invention for use in an espagnolette assembly comprises two parts.
- the first part ( Figure 2) comprises an espagnolette rod 2 having a fixed bar 10 and a moveable bar 14.
- the fixed bar 10 further comprises a slot 12.
- the moveable bar 14 further comprises a mushroom headed 17 engagement means 16 and a security pin 18.
- the espagnolette assembly when in use, is mounted on a sash 8.
- the second part ( Figure 3) comprises a universal keep 24 for mounting on a vent frame 26.
- the keep 24 comprises an engagement slot 28 for use in a locking position, a similar engagement slot 30 for use in a night vent position and two slotted fixing positions 32 to allow cam engagement adjustment, with a triangulated third circular final fixing position 34 to ensure keep stability following fixing.
- the engagement slots 28 & 30, are both flanged 31 to retain the mushroom headed 17 engagement means 16.
- the vent In use, with the vent in the closed position, rotation of the handle 6 engages the gears within the drive mechanism 4. These gears extend the moveable bars 14 causing both the engagement means 16 and the security pin 18 to engage the engagement slot 28 of the keep 24 ( Figures 4 and 5).
- the vent may be positioned so as to allow engagement of the engagement means 16 and the security pin 18 with the night vent slot 30. This allows airflow through the vent whilst preventing access.
- An espagnolette assembly of the present invention gives a clear advantage over the prior art by reducing the chance of a window or door being forced open. If a force is applied perpendicular to the direction of travel of the moveable bar 14 and to the axis of the engagement means 16, rotation around the axis of the engagement means 16 will be prevented by the security pin 18. This will subsequently prevent movement of the sash 8 away from the vent frame 26 and decrease the chance of a lever or jemmy being inserted between the sash 8 and vent frame 26.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wing Frames And Configurations (AREA)
- Emergency Lowering Means (AREA)
- Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
- Special Wing (AREA)
Abstract
Description
- This invention relates to locking mechanisms, and in particular to a locking mechanism for an espagnolette assembly and a bar for such a mechanism.
- Espagnolette assemblies are well known for locking vents, such as windows and doors, in fixed frames. In general, an espagnolette assembly comprises a drive mechanism mounted in or on a vent which, when activated by a handle, drives rods or bars which extend or retract from the sides of the vent into holes or keeps in the sides of the fixed frame.
- Locking systems for espagnolette assemblies are well known in the art. For example, UK patent application GB 2164382A describes an espagnolette fastener for doors or windows comprising a plurality of spaced apart bolts for engagement with a corresponding plurality of keepers. The bolts are operated by an external handle which slides the bolts longitudinally along a rail plate to engage or disengage the keepers.
- UK patent application GB 22701 10A describes a locking mechanism for a sash whereby a plurality of projections on an elongate carrier attached to the vent frame engage complementary retainers on the sash. The elongated carrier is shifted, to engage or disengage the plurality of projections, by means of turning a handle.
- UK patent application GB 2241531A describes a keep, or keeper, for receiving a locking pin mounted on a movable espagnolette bar such that the associated espagnolette bar is held in a closed position, and a second channel, having a respective open end for receiving the locking pin, inclined from its open end away from the first channel to restrain the espagnolette bar in a partially open position.
- A secure locking mechanism on windows and/or doors is essential to prevent unwanted intruders. The espagnolette locking mechanisms described above offer many advantages over conventional window locks in terms of security. However, there is always the need to improve security of espagnolette locking mechanisms as the methods of potential intruders become sophisticated. Current espagnolette assemblies rely on a bar, comprising means for engaging a keep. They suffer from the disadvantage that a force, applied perpendicular to the direction of travel of the locking bar, will generate a rotational force around the axis of the engagement means. This force may allow sufficient movement in the window/door to facilitate the insertion of a lever or jemmy between sash and frame, thereby increasing the likelihood of the locking mechanism being forced open.
- With the foregoing in mind, the present invention aims to improve upon the security of the prior art locking mechanisms for espagnolette assemblies. The improved locking mechanism does so by providing a security device for preventing said rotation around the engagement means, thereby preventing movement of the window/door away from the frame. Although the present invention is particularly applicable to an espagnolette assembly, it is envisaged that the locking mechanism herein described could be used in other types of vent lock and, indeed, in other apparatus requiring a secure fastening means.
- According to the present invention there is provided a bar for an espagnolette locking mechanism, the bar comprising means for engaging a keep, wherein the bar further comprises a security device which follows the engagement means in use into a keep without engaging the keep, wherein the security device prevents rotation about the engagement means during a security attack.
- According to a preferred embodiment of the present invention the engagement means is a pin or spigot designed to engage a keep. Preferably the pin or spigot is mushroom headed and may be attached to the moveable bar by any means known in the art, including riveting and welding. The engagement means may be made from metal, plastics or other suitable material.
- According to a preferred embodiment of the present invention the security device is a pin or spigot. The pin or spigot may be any shape suitable for engaging a keep, including mushroom headed. The security device may be attached to the moveable bar by any means known in the art; preferably, it is rigidly fixed to the bar. The security device may be made from metal, plastics or other suitable material.
- According to a preferred embodiment of the present invention the security device engages the same keep as the engagement means. Preferably, the spacing between the engagement means and the security device is <5cm.
- According to a preferred embodiment of the present invention the bar is flat. However, it may be other shapes.
- According to a preferred embodiment of the present invention the engagement means and security device extended substantially perpendicular to the bar, although these angles may be altered if appropriate.
- According to a preferred embodiment of the present invention the engagement means and security device each have substantially the same height.
- According to a still further embodiment of the present invention, there is provided an espagnolette assembly comprising at least one bar as herein claimed. The espagnolette assembly may further comprise a keep having two engagement slots. One engagement slot will allow the window to be engaged in the locked position whilst the other will allow the window to be engaged in a night vent position. Preferably, the engagement slots are defined by flanges to retain the mushroom-headed engagement means within the slot.
- According to a still further embodiment of the present invention, there is provided a vent comprising a sash, a fixed frame and an espagnolette assembly as herein described.
- A specific embodiment of the present invention is now described, by way of example only, with reference to the accompanying drawings in which:
- Figure 1 shows a perspective view of an espagnolette assembly comprising a first embodiment of locking mechanism according to the present invention.
- Figure 2 shows a perspective view of a bar assembly of the present invention.
- Figure 3 shows a perspective view of a passive universal keep of the present invention.
- Figure 4 shows a perspective view of the bar assembly of Figure 2 engaged with the keep of Figure 3 in the locked position.
- Figure 5 shows a cross-sectional view of the bar assembly engaged with keep through line V-V.
- An espagnolette assembly (Figure 1) comprises two
espagnolette rods 2, a drive mechanism 4 and a handle 6 to be mounted on asash 8. Eachespagnolette rod 2 comprises afixed bar 10, further comprising aslot 12, and amoveable bar 14, further comprising a engagement means 16, which is mushroom headed 17, and asecurity pin 18. Thefixed bar 10 is secured to thesash 8 and drive mechanism housing 20. Themoveable bar 14 is positioned in agroove 22 between the sash 8 and fixedbar 10. Themoveable bar 14 is moveably attached to thefixed bar 10 via the engagement means 16 which extends through theslot 12 in thefixed bar 10 and is flanged to prevent separation of the bars. Themoveable bar 14 is also attached to gears within the drive mechanism 4. The espagnolette assembly (Figure 1) is activated by the handle 6, which rotates the gears within the drive mechanism 4. These gears extend or retract themoveable bars 14 in opposite directions. The bars can engage various keeps on the vent frame by methods known in the art. - A locking mechanism of the present invention for use in an espagnolette assembly comprises two parts. The first part (Figure 2) comprises an
espagnolette rod 2 having afixed bar 10 and amoveable bar 14. Thefixed bar 10 further comprises aslot 12. Themoveable bar 14 further comprises a mushroom headed 17 engagement means 16 and asecurity pin 18. The espagnolette assembly, when in use, is mounted on asash 8. - The second part (Figure 3) comprises a
universal keep 24 for mounting on avent frame 26. Thekeep 24 comprises anengagement slot 28 for use in a locking position, asimilar engagement slot 30 for use in a night vent position and two slottedfixing positions 32 to allow cam engagement adjustment, with a triangulated third circularfinal fixing position 34 to ensure keep stability following fixing. Theengagement slots 28 & 30, are both flanged 31 to retain the mushroom headed 17 engagement means 16. - In use, with the vent in the closed position, rotation of the handle 6 engages the gears within the drive mechanism 4. These gears extend the
moveable bars 14 causing both the engagement means 16 and thesecurity pin 18 to engage theengagement slot 28 of the keep 24 (Figures 4 and 5). Alternatively, the vent may be positioned so as to allow engagement of the engagement means 16 and thesecurity pin 18 with thenight vent slot 30. This allows airflow through the vent whilst preventing access. - Reversing this process unlocks the mechanism. Thus, the
moveable bar 14 is moved in the opposite direction by means of rotating the espagnolette handle 6 in an opposite direction, thereby retracting the engagement means 16 andsecurity pin 18 from theengagement slot 28/30. - An espagnolette assembly of the present invention gives a clear advantage over the prior art by reducing the chance of a window or door being forced open. If a force is applied perpendicular to the direction of travel of the
moveable bar 14 and to the axis of the engagement means 16, rotation around the axis of the engagement means 16 will be prevented by thesecurity pin 18. This will subsequently prevent movement of thesash 8 away from thevent frame 26 and decrease the chance of a lever or jemmy being inserted between thesash 8 and ventframe 26. - It will, of course, be understood that the present invention has been described above purely by way of example, and that modifications of detail can be made within the scope of the invention.
Claims (14)
- A bar for an espagnolette locking mechanism, the bar comprising means for engaging a keep, wherein the bar further comprises a security device which follows the engagement means in use into a keep without engaging the keep, wherein the security device prevents rotation about the engagement means during a security attack.
- A bar as claimed in claim 1, wherein the engagement means is a pin.
- A bar as claimed in any preceding claim, wherein the engagement means is a mushroom headed pin.
- A bar as claimed in any preceding claim, wherein the security device is a pin or spigot.
- A bar as claimed in any preceding claim, wherein the security device is rigidly fixed to the bar.
- A bar as claimed in any preceding claim, wherein the security device engages the same keep as the engagement means.
- A bar as claimed in any preceding claim, wherein the bar is flat.
- A bar as claimed in any preceding claim, wherein the engagement means and security device extended substantially perpendicular to the bar.
- A bar as claimed in any preceding claim wherein the engagement means and security device each have substantially the same height.
- A bar substantially as herein described above and illustrated in the accompanying drawings.
- An espagnolette assembly comprising at least one bar as claimed in any preceding claim.
- An espagnolette assembly as claimed in claim 11, further comprising a keep having two engagement slots.
- An espagnolette assembly as claimed in claim 12, wherein each engagement slot is defined by flanges to retain the engagement means within the slot.
- A vent comprising a sash, a fixed frame and a espagnolette assembly as claimed in any of claims 11-13.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0428396A GB2421541B (en) | 2004-12-24 | 2004-12-24 | An espagnolette lock mechanism with additional security pin |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1679415A1 true EP1679415A1 (en) | 2006-07-12 |
EP1679415B1 EP1679415B1 (en) | 2008-01-02 |
Family
ID=34130954
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05256838A Active EP1679415B1 (en) | 2004-12-24 | 2005-11-04 | A locking mechanism and parts therefor |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1679415B1 (en) |
DE (1) | DE602005004110T2 (en) |
ES (1) | ES2298959T3 (en) |
GB (1) | GB2421541B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2251508A3 (en) * | 2009-05-13 | 2012-07-18 | Siegenia-Aubi KG | Striker plate for windows or doors |
WO2016012520A1 (en) * | 2014-07-22 | 2016-01-28 | Mighton Products Limited | Window status sensor system |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202014000876U1 (en) * | 2014-02-03 | 2015-05-05 | Siegenia-Aubi Kg | Fitting an at least liftable, but preferably also movable wing of windows or doors |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2164382A (en) | 1984-09-14 | 1986-03-19 | Hardware & Systems Patents Ltd | Fasteners |
GB2241531A (en) | 1990-02-23 | 1991-09-04 | Securistyle Ltd | Espagnolette keep |
GB2270110A (en) | 1992-08-25 | 1994-03-02 | Weidtmann Wilhelm Kg | Mechanism for locking components |
EP0777026A1 (en) * | 1995-11-28 | 1997-06-04 | AUBI Baubeschläge GmbH | Fitting for a pivoting and tiltable wing of a window, door or the like |
WO1998041718A1 (en) * | 1997-03-14 | 1998-09-24 | Schlegel Systems, Inc. | Window or door latching strip and mechanism |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1964842A1 (en) * | 1969-12-24 | 1971-08-26 | Frank Gmbh Wilh | Fitting for windows, doors and the like. |
CN1232523A (en) * | 1996-10-07 | 1999-10-20 | 联锁集团有限公司 | Locking mechanism |
GB2332700A (en) * | 1997-10-11 | 1999-06-30 | Avocet Hardware Plc | A device for fastening an openable window or door member to a frame |
-
2004
- 2004-12-24 GB GB0428396A patent/GB2421541B/en active Active
-
2005
- 2005-11-04 EP EP05256838A patent/EP1679415B1/en active Active
- 2005-11-04 DE DE602005004110T patent/DE602005004110T2/en active Active
- 2005-11-04 ES ES05256838T patent/ES2298959T3/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2164382A (en) | 1984-09-14 | 1986-03-19 | Hardware & Systems Patents Ltd | Fasteners |
GB2241531A (en) | 1990-02-23 | 1991-09-04 | Securistyle Ltd | Espagnolette keep |
GB2270110A (en) | 1992-08-25 | 1994-03-02 | Weidtmann Wilhelm Kg | Mechanism for locking components |
EP0777026A1 (en) * | 1995-11-28 | 1997-06-04 | AUBI Baubeschläge GmbH | Fitting for a pivoting and tiltable wing of a window, door or the like |
WO1998041718A1 (en) * | 1997-03-14 | 1998-09-24 | Schlegel Systems, Inc. | Window or door latching strip and mechanism |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2251508A3 (en) * | 2009-05-13 | 2012-07-18 | Siegenia-Aubi KG | Striker plate for windows or doors |
WO2016012520A1 (en) * | 2014-07-22 | 2016-01-28 | Mighton Products Limited | Window status sensor system |
Also Published As
Publication number | Publication date |
---|---|
EP1679415B1 (en) | 2008-01-02 |
GB0428396D0 (en) | 2005-02-02 |
ES2298959T3 (en) | 2008-05-16 |
DE602005004110D1 (en) | 2008-02-14 |
GB2421541B (en) | 2009-09-23 |
GB2421541A (en) | 2006-06-28 |
DE602005004110T2 (en) | 2009-01-02 |
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