EP0494758B1 - A locking device - Google Patents
A locking device Download PDFInfo
- Publication number
- EP0494758B1 EP0494758B1 EP19920300128 EP92300128A EP0494758B1 EP 0494758 B1 EP0494758 B1 EP 0494758B1 EP 19920300128 EP19920300128 EP 19920300128 EP 92300128 A EP92300128 A EP 92300128A EP 0494758 B1 EP0494758 B1 EP 0494758B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- vent
- bolt
- locking device
- link
- keep
- 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.)
- Expired - Lifetime
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Images
Classifications
-
- 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
- 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
Definitions
- This invention relates to locking devices, and in particular to a locking device for use with a sliding patio door system.
- locking device many forms are known, such as deadlocks, spring-loaded locks, bolts, etc. Such devices are perfectly adequate when used in conjunction with hinged doors and door frames. However, other forms of locking device must be utilised if the door, or other vent, is of the sliding kind, such as a sliding patio door.
- a locking device comprising a link, a portion of which is adapted to pass through an opening of a keep, during use, and a bolt, wherein the bolt is moveable between a first position in which it is inactive and a second position in which it enters the opening to prevent retraction of the link from the keep.
- the locking device comprises a drive means for moving the bolt between its first position and its second position.
- the drive means may take many different forms, but preferably includes a drive rod for attachment to a handle.
- the link may include a flattened region which abuts a wall of the opening when the bolt is in its second position, during use.
- the link may simply include an enlarged end portion which is able to pass through the opening, but which cannot pass back through the opening when the bolt is in its active, second position.
- the link is shaped from a flat sheet of metal. If this is the case, an end region of the link is bent to provide an enlarged effective area for preventing retraction of the link when the bolt is in its second position.
- the bolt is preferably substantially planar and moves in a plane substantially parallel to the plane of the link.
- a locking device according to the present invention is preferably utilised in a sliding vent.
- the locking device it is possible for the locking device to be mounted in a support frame and for a keep to be mounted on a sliding vent for mating therewith.
- the vent preferably slides along a track within a support frame such that, when closed, the link of the locking device penetrates a keep mounted on a substantially vertical portion of the frame.
- the locking device may be mounted within a hollow portion of the vent adjacent an aperture through which only the link and bolt extend. Such a mounting of the locking device ensures that the locking device cannot be readily broken away from the sliding vent itself.
- the prevention means may include a spring-biased protrusion which cooperates with a bearing plate only when the vent is closed.
- a swing bolt engages a second keep in a horizontal part of the support frame. If such a swing bolt is included, additional locking strength is provided.
- a sliding vent will preferably include a plurality of locking devices according to the present invention. If many locking devices are utilised, a single handle preferably actuates them all at the same time. More preferably, a lock and key are included to enable the handle to be locked when the bolt or bolts are in the active position.
- a particularly preferred use of a locking device according to the present invention is in a sliding patio door system. Other uses can of course be envisaged.
- each keep defines an opening having two sides, a top and a bottom, and includes grooves for engaging flanges of a channel in a support frame of a vent.
- the grooves in the or each keep preferably engage the flanges of the channel, thereby preventing the or each keep from being pulled away from the support frame.
- the positions of the keep can be readily adjusted as necessary during installation.
- a locking device 1 includes a shoot bolt case 2, a drive rod 3, a shoot bolt 5, a shoot bolt cover 7 and a shaped link 9.
- the shoot bolt case 2 includes a deep channel 11 for receiving the drive rod 3 in sliding relation thereto.
- the shoot bolt case 2 further includes a recessed portion 13 for receiving the shoot bolt 5.
- the shoot bolt 5 includes an arm 5a having a nose portion 5b which engages in a recessed track 15 in the shoot bolt case 2.
- the recessed track 15 is perpendicular to the deep channel 11.
- the drive rod 3 includes a pin 17 mounted thereon for engagement with a corresponding aperture 19 in the shoot bolt 5. Due to this arrangement, as the drive rod 3 moves up or down along the deep channel 11, the pin 17 forces the shoot bolt 5 between its active (figure 1) and inactive (figure 2) positions. The nose portion 5b of the shoot bolt 5 helps to ensure smooth movement of the shoot bolt 5 perpendicular to the drive rod 3.
- the shoot bolt cover 7 is fixed via screws 21 to the shoot bolt case 2, thereby holding the drive rod 3 and shoot bolt 5 in position.
- the shoot bolt cover 7 also includes two flanges 23 extending substantially perpendicularly to its main plane. These flanges dictate the position of the shaped link 9 by ensuring that the link 9 always extends over the edge of the shoot bolt case 2 (as shown in figures 4 and 5), irrespective of whether the shoot bolt 5 is in its active or inactive position.
- a sliding patio door system 30 includes a fixed door 32 and a sliding door 34.
- Each door 32,34 includes a large pane of glass or double glazing.
- the sliding door 34 runs in a track 36 which engages both the top and bottom of the door 34.
- the sliding door includes four locking devices 1 according to the present invention.
- the four locking devices 1 are all activated by means of a single drive rod 3 which is driven by a handle 38.
- a handle 38 When the handle 38 is in its locking position, it can be prevented from turning if a dead-lock 40 is activated by a key (not shown).
- a handle 38 and dead-lock 40 mechanism is well known in the art.
- the handle 38 can only be turned into its locking position when a spring-loaded release catch engages a bearing plate 42 on the track 36. Hence, the patio door can only be locked when it is in its fully closed position. Further, when the handle 38 is turned into its locking position, it drives the drive rod 3 upwards and this urges a swing-bolt 44 into a recess in the bearing plate 42. In this way, additional locking of the patio door is effected.
- the four locking devices 1, according to the present invention, are positioned within a hollow portion of the vertical frame 46 of the sliding door 34.
- the devices 1 are held in position by means of screws (not shown) passing through a metal skin of the vertical frame 46 and engaging threaded holes 48 (c.f. figure 3) in the shoot bolt case 2.
- the hollow vertical frame 46 also includes apertures adjacent the locking devices 1 through which the shoot bolts 5 and shaped links 9 extend. Due to the size of these apertures and the flanges 23 of the shoot bolt covers 7, the shaped links 9 are held in position.
- the shoot bolts 5 are all in their inactive positions (c.f. figure 2). This is because the handle 38 has not been allowed to move into its locked position, as described above. However, when the door is fully closed, the handle 38 can be swung into its locked position, thereby driving the drive rod 3 upwards.
- the position of the shaped links 9 is altered slightly as the shoot bolts 5 engage the apertures 50.
- locking devices 1 Although four locking devices 1 have been shown incorporated in the patio door system of figure 7, more or less locking devices 1 could equally well be used. Furthermore, although the shaped links 9 are shown manufactured from flat sheets of metal, other shapes or materials could also be used.
Landscapes
- Gates (AREA)
- Wing Frames And Configurations (AREA)
Description
- This invention relates to locking devices, and in particular to a locking device for use with a sliding patio door system.
- Many forms of locking device are known, such as deadlocks, spring-loaded locks, bolts, etc. Such devices are perfectly adequate when used in conjunction with hinged doors and door frames. However, other forms of locking device must be utilised if the door, or other vent, is of the sliding kind, such as a sliding patio door.
- It is known to lock a sliding patio door by engaging a hook, mounted on the door and activated by a handle, over a bar mounted in the stationary support frame. The hook and handle are then locked in position by means of any suitable locking device, such as a deadlock engaging the handle. Unfortunately, it has been shown that it can be possible to overcome such a locking device by simply raising the whole patio door so that the hook disengages from the bar, thereby allowing the door to be opened.
- It is also known to use a series of mushroom pins arranged along the leading edge of a sliding patio door. As the door is closed fully, the pins enter openings in a channel mounted on the stationary door frame. A handle on the sliding door is then turned to raise or lower the pins, such that they pass behind flanges formed on the channel in the frame. In this way, the patio door is prevented from sliding open until the mushroom pins are moved back to their initial positions opposite the openings in the channel. Once again, however, it is possible to force open such a patio door. This can be achieved, for example, by inserting a flat heavy object, such as a spade, between the sliding door and the support frame, thereby opening up the channel or simply breaking the mushroom pins, which have relatively weak necks.
- In the light of the foregoing, it will be appreciated that there is a distinct need for a locking device which is suitable for use with a patio door system, and which, when in its active position, provides a very strong lock between the patio door and its stationary support frame. The present invention aims to satisfy this need, but is also readily usable in many other applications.
- According to the present invention, there is provided a locking device comprising a link, a portion of which is adapted to pass through an opening of a keep, during use, and a bolt, wherein the bolt is moveable between a first position in which it is inactive and a second position in which it enters the opening to prevent retraction of the link from the keep.
- Preferably the locking device comprises a drive means for moving the bolt between its first position and its second position. The drive means may take many different forms, but preferably includes a drive rod for attachment to a handle.
- The link may include a flattened region which abuts a wall of the opening when the bolt is in its second position, during use. Alternatively, the link may simply include an enlarged end portion which is able to pass through the opening, but which cannot pass back through the opening when the bolt is in its active, second position.
- In a preferred embodiment of the invention, the link is shaped from a flat sheet of metal. If this is the case, an end region of the link is bent to provide an enlarged effective area for preventing retraction of the link when the bolt is in its second position.
- The bolt is preferably substantially planar and moves in a plane substantially parallel to the plane of the link.
- As will be appreciated, a locking device according to the present invention is preferably utilised in a sliding vent. However, it is possible for the locking device to be mounted in a support frame and for a keep to be mounted on a sliding vent for mating therewith.
- If the locking device is mounted on a sliding vent, the vent preferably slides along a track within a support frame such that, when closed, the link of the locking device penetrates a keep mounted on a substantially vertical portion of the frame.
- The locking device may be mounted within a hollow portion of the vent adjacent an aperture through which only the link and bolt extend. Such a mounting of the locking device ensures that the locking device cannot be readily broken away from the sliding vent itself.
- In a preferred embodiment of the invention, there is provided means to prevent the bolt moving to its active second position until the link has penetrated the keep. The prevention means may include a spring-biased protrusion which cooperates with a bearing plate only when the vent is closed.
- It is also preferable that, as the bolt enters the opening in the keep to lock the vent, a swing bolt engages a second keep in a horizontal part of the support frame. If such a swing bolt is included, additional locking strength is provided.
- As will be appreciated, a sliding vent will preferably include a plurality of locking devices according to the present invention. If many locking devices are utilised, a single handle preferably actuates them all at the same time. More preferably, a lock and key are included to enable the handle to be locked when the bolt or bolts are in the active position.
- A particularly preferred use of a locking device according to the present invention is in a sliding patio door system. Other uses can of course be envisaged.
- Finally, each keep defines an opening having two sides, a top and a bottom, and includes grooves for engaging flanges of a channel in a support frame of a vent. During assembly, the grooves in the or each keep preferably engage the flanges of the channel, thereby preventing the or each keep from being pulled away from the support frame. Furthermore, by being in sliding engagement with the support frame. The positions of the keep can be readily adjusted as necessary during installation.
- 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 is a side view of a locking device in its active position, partially cut-away, and with its shaped link removed for clarity;
- Figure 2 is a side view as shown in figure 1, but with the bolt in its inactive position (the active position of the bolt is shown in chain line);
- Figure 3 is a rear view of the locking device shown in figures 1 and 2;
- Figure 4 is a view in the direction A-A of figure 2, but with the shaped link included;
- Figure 5 is a partial view corresponding to figure 4, but with the locking device in its active position as shown in figure 1;
- Figure 6 shows the parts of the locking device, excluding the shaped link and screws, separated for clarity; and
- Figure 7 is a schematic representation of a sliding patio door system including four locking devices according to the present invention.
- With reference to the drawings, a
locking device 1 according to the present invention includes ashoot bolt case 2, adrive rod 3, ashoot bolt 5, ashoot bolt cover 7 and ashaped link 9. Theshoot bolt case 2 includes adeep channel 11 for receiving thedrive rod 3 in sliding relation thereto. Theshoot bolt case 2 further includes arecessed portion 13 for receiving theshoot bolt 5. Theshoot bolt 5 includes anarm 5a having anose portion 5b which engages in arecessed track 15 in theshoot bolt case 2. Therecessed track 15 is perpendicular to thedeep channel 11. - The
drive rod 3 includes apin 17 mounted thereon for engagement with acorresponding aperture 19 in theshoot bolt 5. Due to this arrangement, as thedrive rod 3 moves up or down along thedeep channel 11, thepin 17 forces theshoot bolt 5 between its active (figure 1) and inactive (figure 2) positions. Thenose portion 5b of theshoot bolt 5 helps to ensure smooth movement of theshoot bolt 5 perpendicular to thedrive rod 3. - The
shoot bolt cover 7 is fixed viascrews 21 to theshoot bolt case 2, thereby holding thedrive rod 3 and shootbolt 5 in position. Theshoot bolt cover 7 also includes twoflanges 23 extending substantially perpendicularly to its main plane. These flanges dictate the position of theshaped link 9 by ensuring that thelink 9 always extends over the edge of the shoot bolt case 2 (as shown in figures 4 and 5), irrespective of whether theshoot bolt 5 is in its active or inactive position. - With specific reference to figure 7, a sliding
patio door system 30 includes a fixeddoor 32 and a slidingdoor 34. Eachdoor door 34 runs in atrack 36 which engages both the top and bottom of thedoor 34. As shown, the sliding door includes fourlocking devices 1 according to the present invention. - The four
locking devices 1 are all activated by means of asingle drive rod 3 which is driven by ahandle 38. When thehandle 38 is in its locking position, it can be prevented from turning if a dead-lock 40 is activated by a key (not shown). Such ahandle 38 and dead-lock 40 mechanism is well known in the art. - The
handle 38 can only be turned into its locking position when a spring-loaded release catch engages a bearingplate 42 on thetrack 36. Hence, the patio door can only be locked when it is in its fully closed position. Further, when thehandle 38 is turned into its locking position, it drives thedrive rod 3 upwards and this urges a swing-bolt 44 into a recess in the bearingplate 42. In this way, additional locking of the patio door is effected. - The four
locking devices 1, according to the present invention, are positioned within a hollow portion of thevertical frame 46 of the slidingdoor 34. Thedevices 1 are held in position by means of screws (not shown) passing through a metal skin of thevertical frame 46 and engaging threaded holes 48 (c.f. figure 3) in theshoot bolt case 2. The hollowvertical frame 46 also includes apertures adjacent thelocking devices 1 through which theshoot bolts 5 and shapedlinks 9 extend. Due to the size of these apertures and theflanges 23 of the shoot bolt covers 7, the shapedlinks 9 are held in position. - In use, as the
patio door 34 slides closed and the shapedlinks 9 pass throughapertures 50 in keeps 52, theshoot bolts 5 are all in their inactive positions (c.f. figure 2). This is because thehandle 38 has not been allowed to move into its locked position, as described above. However, when the door is fully closed, thehandle 38 can be swung into its locked position, thereby driving thedrive rod 3 upwards. Thedrive rod 3, via itspins 17, urges eachshoot bolt 5 into its active position (c.f. figure 1) and through theaperture 50 in its respective keep 52 mounted on thestationary support frame 54 of the patio door system. As can be seen from figures 4 and 5, the position of the shapedlinks 9 is altered slightly as theshoot bolts 5 engage theapertures 50. As this occurs, thelinks 9 abut the edge of theapertures 50 and, due to the shaped ends of thelinks 9, cannot be retracted from theapertures 50 because theshoot bolts 5 are filling the remaining space. Hence, thepatio door 34 cannot be opened until these locking devices are once again released, which is a simple reverse of the locking procedure. - Although four
locking devices 1 have been shown incorporated in the patio door system of figure 7, more orless locking devices 1 could equally well be used. Furthermore, although the shapedlinks 9 are shown manufactured from flat sheets of metal, other shapes or materials could also be used. - It will of course be understood that the present invention has been described above purely by way of example, and that modifications in detail can be made within the scope of the invention as claimed.
Claims (15)
- A locking device (1) comprising a link (9), a portion of which is adapted to pass through an opening (50) of a keep (52), during use, and a bolt (5), wherein the bolt is moveable between a first position in which it is inactive and a second position in which it enters the opening (50) to prevent retraction of the link (9) from the keep (52).
- A locking device as claimed in claim 1, further comprising a drive means for moving the bolt (5) between the first position and the second position.
- A locking device as claimed in claim 2, wherein the drive means includes a drive rod (3) for attachment to a handle (38).
- A locking device as claimed in any preceding claim, wherein the link (9) includes a flattened region which abuts a wall of the opening (50) when the bolt (5) is in its second position, during use.
- A locking device as claimed in any preceding claim, wherein the link (9) is shaped from a flat sheet of metal.
- A locking device as claimed in any preceding claim, wherein the bolt (5) is substantially planar and moves in a plane substantially parallel to the plane of the link (9).
- A sliding vent (32,34) including a locking device (1) as claimed in any preceding claim.
- A vent as claimed in claim 7, which slides along a track (36) within a frame (54) such that, when closed, the link (9) penetrates a keep (52) mounted on a substantially vertical portion of the frame (54).
- A vent as claimed in claim 7 or claim 8, wherein the locking device (1) is mounted within a hollow part of the vent frame adjacent an aperture in the frame through which the bolt (5) and link (9) extend.
- A vent as claimed in any one of claims 7-9, wherein means is provided to prevent the bolt (5) moving to its active second position until the link (9) has penetrated a keep (52).
- A vent as claimed in claim 10, wherein the prevention means includes a spring-biased protrusion which cooperates with a bearing plate (42) only when the vent (32,34) is closed.
- A vent as claimed in any one of claims 7-11, wherein as the bolt (5) enters the opening (50) in the keep (52) to lock the vent (32,34), during use, a swing bolt (44) engages a keep (42) in a horizontal part of a support frame.
- A vent as claimed in any one of claims 7-12, wherein a plurality of locking devices (1) are provided, all activated by single handle (38).
- A vent as claimed in claim 13, wherein a lock (40) is provided for locking the handle (38) when the bolts (5) are in their active second position.
- A vent as claimed in any one of claims 7-14, wherein the vent (32,34) is a patio door.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9100514 | 1991-01-10 | ||
GB9100514A GB2251651A (en) | 1991-01-10 | 1991-01-10 | A locking device |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0494758A1 EP0494758A1 (en) | 1992-07-15 |
EP0494758B1 true EP0494758B1 (en) | 1995-03-29 |
Family
ID=10688232
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19920300128 Expired - Lifetime EP0494758B1 (en) | 1991-01-10 | 1992-01-08 | A locking device |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0494758B1 (en) |
DE (1) | DE69201798T2 (en) |
DK (1) | DK0494758T3 (en) |
GB (1) | GB2251651A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5732986A (en) * | 1995-12-26 | 1998-03-31 | Piva; Lino | Door lock |
GB2416188B (en) * | 2004-07-13 | 2008-09-10 | Fullex Locks Ltd | Lock Apparatus |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB214854A (en) * | 1923-05-26 | 1924-05-01 | William Henry Tonks | Improvements in or relating to locks |
GB217813A (en) * | 1923-09-25 | 1924-06-26 | Orin James Looney | Improvements in and relating to locks |
US4239268A (en) * | 1978-06-05 | 1980-12-16 | Rider Harlan H | Sliding door lock |
FR2476192A2 (en) * | 1979-07-05 | 1981-08-21 | Fichet Bauche | DOOR LOCK DEVICE |
EP0096512A1 (en) * | 1982-06-09 | 1983-12-21 | Chubb & Son's Lock and Safe Company Limited | Lock |
GB2125876A (en) * | 1982-08-26 | 1984-03-14 | Monarch Aluminium | Improvements in or relating to hook locks for sliding doors and windows |
GB8528445D0 (en) * | 1985-11-19 | 1985-12-24 | Taylor A M | Door locks |
US4779908A (en) * | 1986-11-04 | 1988-10-25 | Best Lock Corporation | Latch bolt deadlocking mechanism |
AT391160B (en) * | 1987-04-02 | 1990-08-27 | Sgp Verkehrstechnik | DOOR LOCKING FOR VEHICLES, ESPECIALLY FOR WAGONS WITH PIVOTING SLIDING DOORS |
FI82287C (en) * | 1987-04-13 | 1991-02-11 | Waertsilae Oy Ab | DOERRLAOS. |
US4742701A (en) * | 1987-06-18 | 1988-05-10 | Donald Scavetto | Trailer lock |
FR2633002B1 (en) * | 1988-06-20 | 1990-09-28 | Ferco Int Usine Ferrures | LOCKING MEMBER FOR CREMONE, CREMONE-LOCK, MULTI-POINT LOCK AND OTHERS |
-
1991
- 1991-01-10 GB GB9100514A patent/GB2251651A/en not_active Withdrawn
-
1992
- 1992-01-08 EP EP19920300128 patent/EP0494758B1/en not_active Expired - Lifetime
- 1992-01-08 DK DK92300128T patent/DK0494758T3/en active
- 1992-01-08 DE DE1992601798 patent/DE69201798T2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE69201798T2 (en) | 1995-08-03 |
DK0494758T3 (en) | 1995-06-12 |
GB2251651A (en) | 1992-07-15 |
GB9100514D0 (en) | 1991-02-20 |
EP0494758A1 (en) | 1992-07-15 |
DE69201798D1 (en) | 1995-05-04 |
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