EP4245951A1 - Door lock fixture arranged to be mounted onto a tubular member - Google Patents
Door lock fixture arranged to be mounted onto a tubular member Download PDFInfo
- Publication number
- EP4245951A1 EP4245951A1 EP23162423.0A EP23162423A EP4245951A1 EP 4245951 A1 EP4245951 A1 EP 4245951A1 EP 23162423 A EP23162423 A EP 23162423A EP 4245951 A1 EP4245951 A1 EP 4245951A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- door lock
- faceplate
- support arm
- tubular member
- opening
- 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.)
- Pending
Links
- 239000002184 metal Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 238000010079 rubber tapping Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000011247 coating layer Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
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- 239000011253 protective coating Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Classifications
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B65/00—Locks or fastenings for special use
- E05B65/0007—Locks or fastenings for special use for gates
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B9/00—Lock casings or latch-mechanism casings ; Fastening locks or fasteners or parts thereof to the wing
- E05B9/02—Casings of latch-bolt or deadbolt locks
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B9/00—Lock casings or latch-mechanism casings ; Fastening locks or fasteners or parts thereof to the wing
- E05B9/08—Fastening locks or fasteners or parts thereof, e.g. the casings of latch-bolt locks or cylinder locks to the wing
Definitions
- the present invention relates to a door lock fixture which comprises a faceplate and a fixture body and which is configured to be mounted with its fixture body through a slot in a wall portion of a tubular member, with the faceplate of the fixture being configured to engage an outer surface of said wall portion of the tubular member and to be fixed to said wall portion by means of at least one bolt which is applied through an opening in said faceplate.
- the door lock fixture is in particular a mortice lock or a keep for a door lock.
- the word "door” is used in the present specification to embrace all kinds of closure members such as doors, having a full door panel, and gates.
- the door can either be a hinged or a sliding closure member.
- EP 2 186 974 discloses a mortice lock which is arranged to be mounted onto a tubular member of for example a garden gate.
- This mortice lock comprises a latch bolt which is operable by means of two handles and a dead bolt which is operable by means of a key operated lock cylinder.
- the lock itself consists of a lock body and of a faceplate which is fixed thereto by means of two bolts.
- the lock body is inserted through a slot which is cut in a wall portion of the tubular member until the faceplate engages the outer surface of this wall portion. Above and below the slot a hole is made in the wall of the tubular member.
- a drawback of such a fixation system is that the holes for the self-tapping screws/bolts have to be made in the correct position in a lateral wall of the tubular member. This position has to be determined quite accurately since in the front and the back walls of the tubular member holes are made for the lock cylinder and the handles. Since the handle shaft and the lock cylinder extend entirely through the tubular member, the position of the lock within the tubular member is fixed by these elements. The holes for the self-tapping screws/bolts and for the lock cylinder and the handles have thus to be made in the right mutual positions which is not so easy since these holes are situated on three different sides of the tubular member.
- a further drawback of the fixation system of this prior art lock is that the slot for the lock body and the holes for the handles and the lock cylinder have to be made in the tubular member before it is coated with a protective coating so that also at the location of this slot and these holes the coating remains intact.
- the tubular member is for example painted or galvanised to protect it against oxidation.
- the coating layer is damaged at the location of the holes when screwing the self-tapping screws/bolts into these holes in the tubular member.
- a final drawback of the prior art fixation system is that, due to the limited thickness of the wall of the tubular member, which comprises in practice for example only 1 to 1.5 mm, a strong fixation is or cannot always be obtained. In particular when tensioning the screws too strongly into the holes, the holes in the tubular member may even be damaged so that the required grip of the screws in the holes is lost. Drilling new holes in the tubular member is not possible since the location of the holes for the screws is determined completely by the position of the holes for the handles and the lock cylinder.
- WO 2007/009998 discloses a bolt and plug fixation system which enables to fix for example a keep for a lock to a tubular member.
- This fixation system enables to achieve a strong fixation.
- a drawback of this fixation system is however that the holes for the bolts need to be drilled again in the correct location. Moreover, it is relatively expensive due to the milling steps required to make especially the metal plug part.
- US 2012/0034021 proposes to provide snap-fitting tabs right behind the faceplate on the lock body. When pushing the lock into the tubular member, these tabs snap behind the wall portion of the tubular member that surrounds the slot through which the lock is inserted into the tubular member so that the lock is automatically fixed to the tubular member.
- a drawback such an automatic fixation system is that the lock is not always solidly fixed to the tubular member since the distance between the faceplate and the snap-fitting tabs should generally be somewhat larger than the thickness of the wall of the tubular member to enable the tabs to snap behind the wall of the tubular member.
- the thickness of this wall may vary quite considerably in particular due to the coating material which is applied onto the tubular member. This coating material can indeed run off somewhat and accumulate in particular in the form of droplets at the edges of the slot. When this occurs, it may become problematic to mount the lock onto the tubular member. As a matter of fact, at the location of such droplets, the wall of the tubular member would be too thick to enable the snap-fitting tabs to snap behind this wall to fix the lock in the tubular member.
- a further drawback of this prior art automatic fixation system is that once the lock has been snap-fitted into the tubular member, it is no longer possible to remove it, for example when it needs to be oiled or when it is broken and should be replaced.
- EP 3 153 645 has previously addressed these issues and disclosed a door lock fixture with an improved fixation system.
- EP 3 153 645 discloses a door lock fixture comprising a faceplate and a fixture body, the door lock fixture being configured to be mounted with its fixture body through an elongated slot in a wall of a tubular member with the faceplate engaging an outer surface of said wall, the elongated slot extending in a longitudinal direction, the faceplate comprising at least one opening arranged to receive a bolt for fixing the door lock fixture to said wall, the fixture body comprising, for said at least one opening, a support arm which is slideably mounted onto the fixture body along the longitudinal direction between a retracted position in which the fixture body can be inserted through said elongated slot into the tubular member, and an extended position.
- a downside of this known door lock fixture is particularly relevant for a sliding support arm. As illustrated in figure 17 of EP 3 153 645 , depending on the thickness of the wall portion, the support arm is bent when tightening the bolt. Such bending weakens the support arm and may cause a less reliable fixation.
- An object of the present invention is therefore to provide an alternative door lock fixture which can be fixed strongly and reliably into a slot in a tubular member and this independent of the wall thickness of the tubular member.
- the fixture according to the invention is characterised in that the door lock fixture further comprises a nut which is irrotatably and slideably mounted on the support arm along a transverse direction which is substantially perpendicular to the longitudinal direction between a rest position and an engaging position in which the nut, when the support arm is in its extended position, is arranged to engage an inner surface of said wall of the tubular member to clamp said wall between the faceplate and the nut, the nut being provided with a screw threaded hole which is axially aligned with said opening in the faceplate in the extended position of the support arm and which is configured to receive said bolt.
- the bolt used to fix the fixture in the tubular member is screwed in the screw threaded hole in the nut, it can be tightened strongly so that the wall of the tubular member is clamped strongly and reliably between the faceplate and the nut.
- the functioning of the support arm is hereby not affected by the thickness of the wall of the tubular member.
- the support arm does not hamper the insertion of the body of the fixture into the tubular member since it is hold in its retracted position when the fixture is inserted into the tubular member.
- the advantages of the solution proposed in EP 3 153 645 are maintained also with the present invention.
- the support arm itself is not deformed when tightening the bolt as the nut is slideably with respect to the support arm.
- the nut slides closer to the wall portion without deforming (e.g. bending or otherwise) the support arm.
- the nut could also be slid against the wall portion prior to tightening the bolt, e.g. due to a biasing member and a latch.
- the fixture body is manufactured from a plastic material.
- a plastic material may be more readily, e.g. faster and cheaper, moulded (e.g. by injection moulding) in the desired shape when compared to a metal material.
- moulded e.g. by injection moulding
- little to no forces are exerted on the fixture body and are instead directly transferred from the faceplate to the bolt to the nut and thus to the tubular support.
- the faceplate is manufactured from a metal, preferably stainless steel.
- a metal faceplate is preferred to withstand the large forces that may occur when someone attempts to force open the closure system on which the door lock fixture is mounted. This is further advantageous for outdoor applications to avoid corrosion and generally improve weather resistance.
- the support arm is accessible through the front plate. This avoids having to provide additional space/openings in the tubular support to reach the support arm which could weaken the support.
- the nut is configured to be moved from its rest position to its engaging position by tightening said bolt. This avoids having to perform additional operations to move the nut to its engaging position.
- the support arm is manually slideable from its retracted to its extended position. This avoids that additional tools are required. This further offers a simple design avoiding the need for biasing members and/or latches.
- the support arm comprises an engagement means allowing to engage the support arm to slide the support arm from its extended position to its retracted position. This is beneficial as it allows to, after assembly, again remove the door lock fixture from the tubular support. Furthermore, depending on the engagement means, these may be designed no to be accessible without a dedicated tool thus avoiding that anyone can easily remove the door lock fixture.
- the support arm comprises one or more latches for avoiding that the support arm reaches a position outside a range defined by its retracted position and its extended position. This improves robustness as undesired positions of the support arm are obstructed and unreachable.
- said at least one opening comprises a first opening and a second opening which are located at opposing ends of the faceplate in the longitudinal direction, wherein the support arm associated with said first opening and the support arm associated with said second opening slide away from one another in the longitudinal direction when sliding from their retracted position to their extended position.
- two separate and distinct fixations are used. This improves the overall strength of the connection between the door lock fixture and the tubular support.
- said transverse direction is perpendicular to the faceplate.
- the door lock fixture is a keeper for a door lock, the keeper comprising an elongated opening in the faceplate and a corresponding elongated slot in the fixture body, said at least one opening being preferably adjacent said elongated opening.
- the keeper preferably comprises an L-shaped stop configured for stopping a closing motion of a closure member, the L-shaped stop having a first leg and a second leg which protrudes with respect to the faceplate, the faceplate being provided with a grooved region on its rear side and the first leg of the L-shaped stop being provided with a corresponding grooved region which cooperate with one another to allow adjusting a spacing between the second leg of the L-shaped stop and said elongated slot.
- the keeper more preferably comprises an insert which forms said grooved region on the rear side of the faceplate, the insert having an opening axially aligned with said at least one opening, the L-shaped stop and the insert preferably being manufactured from metal.
- an L-shaped stop is advantageous as this may be easily mounted on the door lock fixture and the grooved regions allow for varying the distance with the elongated slot in which the latch bolt and/or deadbolt are received. This may account for various misalignments of the closure system.
- Having one of the grooved regions formed as a separate insert allows for simple and easy to manufacture components while avoiding that the fixture body needs to be made from a metal material to avoid damaging a plastic grooved region. Having the insert also disposed about the fixation bolts improves force transfer when someone attempts to force open the closure system.
- the door lock fixture is a mortice lock.
- the object according to the present invention is also achieved with a system comprising a tubular member having a wall with an elongated slot therein, the elongated slot extending in a longitudinal direction, the system further comprising a door lock fixture as described above mounted on the tubular member by a bolt extending through the opening in the face plate and bolted into the screw threaded hole provided in the nut to clamp said wall of the tubular member between the faceplate the nut.
- the system includes the door lock fixture as described above and thus achieves the same advantages.
- the present invention generally relates to a door lock fixture which comprises a faceplate and a fixture body.
- the door lock fixture is a mortice lock to be inserted into a closure member, in particular in a hollow tubular member thereof.
- the door lock fixture is a morticed lock keep which comprises a body portion that is recessed in the support onto which it is mounted.
- the support is generally formed by a hollow tubular member and can either be a fixed post or a leaf of a double door or gate.
- the morticed lock keep 10 is configured to be mounted with its body 2 through an elongated slot 4 in a wall portion 5 of a tubular member 3.
- This tubular member 3 is part of a gate, as illustrated for example in figure 1 , or of a door or any other type of hinged closure member.
- the tubular member 3 extends in a longitudinal direction 13 indicated in figure 1 .
- the morticed lock keep 10 is designed for cooperation with a lock 20 as shown in figure 6 .
- the lock 20 may have a locking mechanism of any type. It may comprises a latch bolt 6 which is operated by means of handles 7, a deadbolt 8 which is operated by means of a key in particular through the intermediary of a lock cylinder 35 (for example a single-barrel euro-profile cylinder), or it may comprise a combination of a latch bolt 6 and a deadbolt 8 as in the embodiments illustrated in the drawings. Usually the latch bolt 6 and the deadbolt 8 are slideably mounted in the lock 20 to slide between a retracted and an extended position.
- the deadbolt 8 is however hook-shaped and pivots in the lock 20 between its extended and its retracted positions.
- the lock illustrated in figure 6 is in particular a lock as disclosed in EP 2 186 974 and EP 3 153 645 and further details about this lock can be found therein.
- the morticed lock keep 10 comprises a faceplate 1 and a partially hollow body 2.
- the faceplate 1 comprises an elongated opening 9 and the partially hollow body 2 forms a corresponding elongated slot 21 in which the latch bolt 6 and/or the deadbolt 8 are received as shown in figure 6 .
- the hollow body 2 is designed to be located inside the tubular member 3 and the faceplate 1 is designed to engage an outer surface of a wall portion 5 of the tubular member 3.
- the faceplate 1 comprises two openings 12 (i.e. one on either side of the elongated opening 9) which, as described below, are used to mount the morticed lock keep 10 to the tubular member 3.
- the morticed lock keep 10 illustrated in the figures is in particular a morticed lock keep as disclosed in EP 3 153 645 and further details about this morticed lock keep can be found therein.
- the fixture body comprises, for each opening 12, a support arm 11 which is slideably mounted onto the fixture body 2 along the longitudinal direction 13 between a retracted position (shown in figures 3A to 3C ) in which the fixture body 2 can be inserted through the elongated slot 4 into the tubular member 3 and an extended position (shown in figures 4A to 4C ).
- each support arm 11 there is provided a nut 14 which is irrotatably and slideably mounted on the respective support arm 11 along a transverse direction 15 (indicated in figure 5A ) between a rest position (shown in figure 5A ) and an engaging position (shown in figure 5C ).
- Each nut 14 comprises a threaded opening 16 configured to receive a bolt 17 (having a bolt head 17a and a threaded part 17b) used to mount the morticed lock keep 10 on the tubular member 3.
- the nut 14 is irrotatable with respect to the support arm 11 due to its square (in general non-circular) outer shape.
- the two support arms 11 are held in a retracted position, more particularly in a position wherein they are retracted into the fixture body 2 so that the morticed lock keep 10 can be inserted easily with its body 2 through the slot 4 into the tubular member 3.
- the support arms 11 therefore do not project out of the body 2.
- Each of the support arms 11 can slide along the longitudinal direction 13 from this retracted position to an extended position wherein they project out of the body 2 so that the threaded openings 16 in each nut 14 align with a corresponding one of openings 12 in the faceplate 1 as shown in figure 5B . In this extended position, the support arms 11 project respectively above and below the body 2.
- Each supporting arm 11 is slideable from its retracted to its extended position. This may be achieved manually since the opening 9 in the faceplate 1 and the elongated slot 21 in the body 2 allow easy access to the supporting arms 11 in their retracted positions. Alternatively, biasing members (e.g. a compression spring) and cooperating latches may be used causing an automatic sliding motion when unlatched.
- Each supporting arm 11 is further provided with tool engagement means 18 (e.g. a hole) which allows inserting a tool to slide the supporting arms 11 back from their extended position to the retracted position. This may be beneficial in case the morticed lock keep 10 needs removal from the tubular member 3.
- Each supporting arm 11 is bar- or beam-shaped and fits in a corresponding guide on the body 2 as best shown in figures 3C and 4C .
- the supporting arms 11 are provided with a latching protrusion 22 which abuts with a catch 23 in the body 2. This avoids that the supporting arm 11 can be removed from the body 2.
- each supporting arm 11 forms a separate element which is fixed to the body 2 during manufacturing.
- the latching protrusion 22 and catch 23 also help define the extended position of the supporting arms 11 as no further sliding movement is possible beyond catch 23 as best shown in figure 5C .
- the retracted position on the other hand is limited by wall 24 against which the nut-holding part 11a of the supporting arm 11 abuts as best shown in figure 5A .
- the fixation system according to the present invention i.e. the supporting arms with slideably nuts provided thereon, all forces exerted on the faceplate 1 are directly transferred to the supporting member 3. In other words, little to no forces are exerted on the fixture body 2.
- the faceplate 1 in the illustrated embodiment is manufactured from metal (e.g. stainless steel which is beneficial for outdoors use) so that the large forces that may occur when someone is forcing open a lock do not lead to a deformation of the faceplate.
- the fixture body 2 is made from a plastic material. This allows to manufacture this using injection moulding which is advantageous for mass producing complex-shaped articles.
- the morticed lock keep 10 further comprises an L-shaped stop 26 having a first leg 26a and a second leg 26b.
- the second leg 26b protrudes with respect to the faceplate 1 and stops a closing motion of a gate, door, or other kind of pivotable closure member.
- the first leg 26a is pressed between the faceplate 1 and the wall portion 5 of the tubular member 3.
- the first leg 26a is provided with a grooved region 27 that cooperates with another grooved region 28 provided on the rear side of the faceplate 1.
- the grooved region 28 provided on the rear side of the faceplate 1 is formed by a separate metal insert 31 having an opening 32 through which the bolt 17 extends.
- the grooved region 28 could be integrally formed with the faceplate 1, e.g. as a cast element.
- a separate insert 31 is preferred as this allows forming the faceplate 1 from a single metal plate which is typically less brittle than a cast element.
- Either embodiment is advantageous compared to providing the grooved region 28 in the fixture body 2 as this could lead to damage of the fixture body 2.
- the grooved region in such an injection moulded element may break when large forces are exerted on the second leg 26b.
- the illustrated morticed lock keep 10 is further provided with a covering 29 for aesthetic purposes. This covering 29 is wedged between the faceplate 1 and the first leg 26a as shown in figure 5B .
- the elongated slot 4 is provided with notches 25 in which the bolts 17 are partially located. These notches 25 allow for an easy alignment of the lock fixture and other details and advantages thereof are described in a patent application titled "Door lock fixture mounted onto a tubular member" filed on the same day by the same applicant as the present application and are incorporated herein by reference.
- fixation systems with the supporting arms and slideably nuts provided thereon can also be applied to a lock.
- one of the two supporting arms 11 can be omitted, for example the lowermost one, and can be replaced by a gap between the faceplate 1 and the fixture body 2, illustrated for example in figure 3 of US 2012/0034021 , so that the fixture can first be slid with this gap at the bottom edge of the slot 4 over the lateral wall 5 of the tubular member 3, after which the fixture body can be pivoted about this edge of the slot 4 into the tubular member 3.
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Abstract
Description
- The present invention relates to a door lock fixture which comprises a faceplate and a fixture body and which is configured to be mounted with its fixture body through a slot in a wall portion of a tubular member, with the faceplate of the fixture being configured to engage an outer surface of said wall portion of the tubular member and to be fixed to said wall portion by means of at least one bolt which is applied through an opening in said faceplate.
- The door lock fixture is in particular a mortice lock or a keep for a door lock. The word "door" is used in the present specification to embrace all kinds of closure members such as doors, having a full door panel, and gates. The door can either be a hinged or a sliding closure member.
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EP 2 186 974 - A drawback of such a fixation system is that the holes for the self-tapping screws/bolts have to be made in the correct position in a lateral wall of the tubular member. This position has to be determined quite accurately since in the front and the back walls of the tubular member holes are made for the lock cylinder and the handles. Since the handle shaft and the lock cylinder extend entirely through the tubular member, the position of the lock within the tubular member is fixed by these elements. The holes for the self-tapping screws/bolts and for the lock cylinder and the handles have thus to be made in the right mutual positions which is not so easy since these holes are situated on three different sides of the tubular member.
- A further drawback of the fixation system of this prior art lock is that the slot for the lock body and the holes for the handles and the lock cylinder have to be made in the tubular member before it is coated with a protective coating so that also at the location of this slot and these holes the coating remains intact. The tubular member is for example painted or galvanised to protect it against oxidation. However, even when making first the holes in the tubular member before coating it, the coating layer is damaged at the location of the holes when screwing the self-tapping screws/bolts into these holes in the tubular member.
- Still a further drawback of this know fixation system is that the screw threads of commercial screws generally do not start directly from the head of the screws. Consequently, since the faceplate is clamped directly against the relatively thin wall of the tubular member and since the holes in the faceplate have to be countersunk to receive the heads of the screws/bolts, the faceplate has to be quite thick. Such a thick faceplate is not only more expensive but is also less aesthetic.
- A final drawback of the prior art fixation system is that, due to the limited thickness of the wall of the tubular member, which comprises in practice for example only 1 to 1.5 mm, a strong fixation is or cannot always be obtained. In particular when tensioning the screws too strongly into the holes, the holes in the tubular member may even be damaged so that the required grip of the screws in the holes is lost. Drilling new holes in the tubular member is not possible since the location of the holes for the screws is determined completely by the position of the holes for the handles and the lock cylinder.
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WO 2007/009998 discloses a bolt and plug fixation system which enables to fix for example a keep for a lock to a tubular member. This fixation system enables to achieve a strong fixation. A drawback of this fixation system is however that the holes for the bolts need to be drilled again in the correct location. Moreover, it is relatively expensive due to the milling steps required to make especially the metal plug part. - In order to avoid having to drill holes in the lateral wall of the tubular member for fixing the faceplate thereto,
US 2012/0034021 proposes to provide snap-fitting tabs right behind the faceplate on the lock body. When pushing the lock into the tubular member, these tabs snap behind the wall portion of the tubular member that surrounds the slot through which the lock is inserted into the tubular member so that the lock is automatically fixed to the tubular member. - A drawback such an automatic fixation system is that the lock is not always solidly fixed to the tubular member since the distance between the faceplate and the snap-fitting tabs should generally be somewhat larger than the thickness of the wall of the tubular member to enable the tabs to snap behind the wall of the tubular member. Moreover, the thickness of this wall may vary quite considerably in particular due to the coating material which is applied onto the tubular member. This coating material can indeed run off somewhat and accumulate in particular in the form of droplets at the edges of the slot. When this occurs, it may become problematic to mount the lock onto the tubular member. As a matter of fact, at the location of such droplets, the wall of the tubular member would be too thick to enable the snap-fitting tabs to snap behind this wall to fix the lock in the tubular member.
- A further drawback of this prior art automatic fixation system is that once the lock has been snap-fitted into the tubular member, it is no longer possible to remove it, for example when it needs to be oiled or when it is broken and should be replaced.
-
EP 3 153 645EP 3 153 645 - A downside of this known door lock fixture is particularly relevant for a sliding support arm. As illustrated in figure 17 of
EP 3 153 645 - An object of the present invention is therefore to provide an alternative door lock fixture which can be fixed strongly and reliably into a slot in a tubular member and this independent of the wall thickness of the tubular member.
- To this end, the fixture according to the invention is characterised in that the door lock fixture further comprises a nut which is irrotatably and slideably mounted on the support arm along a transverse direction which is substantially perpendicular to the longitudinal direction between a rest position and an engaging position in which the nut, when the support arm is in its extended position, is arranged to engage an inner surface of said wall of the tubular member to clamp said wall between the faceplate and the nut, the nut being provided with a screw threaded hole which is axially aligned with said opening in the faceplate in the extended position of the support arm and which is configured to receive said bolt.
- Since the bolt used to fix the fixture in the tubular member is screwed in the screw threaded hole in the nut, it can be tightened strongly so that the wall of the tubular member is clamped strongly and reliably between the faceplate and the nut. The functioning of the support arm is hereby not affected by the thickness of the wall of the tubular member. The support arm does not hamper the insertion of the body of the fixture into the tubular member since it is hold in its retracted position when the fixture is inserted into the tubular member. In other words, the advantages of the solution proposed in
EP 3 153 645 - Furthermore, the support arm itself is not deformed when tightening the bolt as the nut is slideably with respect to the support arm. In other words, when tightening the bolt, the nut slides closer to the wall portion without deforming (e.g. bending or otherwise) the support arm. Naturally, the nut could also be slid against the wall portion prior to tightening the bolt, e.g. due to a biasing member and a latch.
- In an embodiment of the present invention, the fixture body is manufactured from a plastic material. This is advantageous as a plastic material may be more readily, e.g. faster and cheaper, moulded (e.g. by injection moulding) in the desired shape when compared to a metal material. Moreover, due to the fixation system, little to no forces are exerted on the fixture body and are instead directly transferred from the faceplate to the bolt to the nut and thus to the tubular support.
- In an embodiment of the present invention, the faceplate is manufactured from a metal, preferably stainless steel. A metal faceplate is preferred to withstand the large forces that may occur when someone attempts to force open the closure system on which the door lock fixture is mounted. This is further advantageous for outdoor applications to avoid corrosion and generally improve weather resistance.
- In an embodiment of the present invention, the support arm is accessible through the front plate. This avoids having to provide additional space/openings in the tubular support to reach the support arm which could weaken the support.
- In an embodiment of the present invention, the nut is configured to be moved from its rest position to its engaging position by tightening said bolt. This avoids having to perform additional operations to move the nut to its engaging position.
- In an embodiment of the present invention, the support arm is manually slideable from its retracted to its extended position. This avoids that additional tools are required. This further offers a simple design avoiding the need for biasing members and/or latches.
- In an embodiment of the present invention, the support arm comprises an engagement means allowing to engage the support arm to slide the support arm from its extended position to its retracted position. This is beneficial as it allows to, after assembly, again remove the door lock fixture from the tubular support. Furthermore, depending on the engagement means, these may be designed no to be accessible without a dedicated tool thus avoiding that anyone can easily remove the door lock fixture.
- In an embodiment of the present invention, the support arm comprises one or more latches for avoiding that the support arm reaches a position outside a range defined by its retracted position and its extended position. This improves robustness as undesired positions of the support arm are obstructed and unreachable.
- In an embodiment of the present invention, said at least one opening comprises a first opening and a second opening which are located at opposing ends of the faceplate in the longitudinal direction, wherein the support arm associated with said first opening and the support arm associated with said second opening slide away from one another in the longitudinal direction when sliding from their retracted position to their extended position. In other words, two separate and distinct fixations are used. This improves the overall strength of the connection between the door lock fixture and the tubular support.
- In an embodiment of the present invention, said transverse direction is perpendicular to the faceplate.
- In a first alternative embodiment of the present invention, the door lock fixture is a keeper for a door lock, the keeper comprising an elongated opening in the faceplate and a corresponding elongated slot in the fixture body, said at least one opening being preferably adjacent said elongated opening. The keeper preferably comprises an L-shaped stop configured for stopping a closing motion of a closure member, the L-shaped stop having a first leg and a second leg which protrudes with respect to the faceplate, the faceplate being provided with a grooved region on its rear side and the first leg of the L-shaped stop being provided with a corresponding grooved region which cooperate with one another to allow adjusting a spacing between the second leg of the L-shaped stop and said elongated slot. The keeper more preferably comprises an insert which forms said grooved region on the rear side of the faceplate, the insert having an opening axially aligned with said at least one opening, the L-shaped stop and the insert preferably being manufactured from metal. In case the door lock fixture is a keeper, an L-shaped stop is advantageous as this may be easily mounted on the door lock fixture and the grooved regions allow for varying the distance with the elongated slot in which the latch bolt and/or deadbolt are received. This may account for various misalignments of the closure system. Having one of the grooved regions formed as a separate insert allows for simple and easy to manufacture components while avoiding that the fixture body needs to be made from a metal material to avoid damaging a plastic grooved region. Having the insert also disposed about the fixation bolts improves force transfer when someone attempts to force open the closure system.
- In a second alternative embodiment of the present invention, the door lock fixture is a mortice lock.
- The object according to the present invention is also achieved with a system comprising a tubular member having a wall with an elongated slot therein, the elongated slot extending in a longitudinal direction, the system further comprising a door lock fixture as described above mounted on the tubular member by a bolt extending through the opening in the face plate and bolted into the screw threaded hole provided in the nut to clamp said wall of the tubular member between the faceplate the nut. The system includes the door lock fixture as described above and thus achieves the same advantages.
- Other particularities and advantages of the invention will become apparent from the following description of some particular embodiments of a mortice lock and of a keep according to the present invention. The reference numerals used in this description relate to the annexed drawing.
-
Figure 1 shows a perspective view of a door lock fixture mounted on a tubular member. -
Figure 2 shows the tubular member offigure 1 without the door lock fixture. -
Figures 3A to 3C show various views of the door lock fixture with the supporting arms in their retracted positions. -
Figures 4A to 4C show the same views asfigures 3A to 3C of the door lock fixture with the supporting arms in their extended positions. -
Figures 5A to 5C shows a detail of a cross-sectional view through the door lock fixture and tubular member illustrating the various mounting steps. -
Figure 6 shows a partially cross-sectioned view of a mortised lock keeper mounted on a tubular member cooperating with a lock. - The present invention will be described with respect to particular embodiments and with reference to certain drawings but the invention is not limited thereto but only by the claims. The drawings described are only schematic and are non-limiting. In the drawings, the size of some of the elements may be exaggerated and not drawn on scale for illustrative purposes. The dimensions and the relative dimensions do not necessarily correspond to actual reductions to practice of the invention.
- Furthermore, the terms first, second, third and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a sequential or chronological order. The terms are interchangeable under appropriate circumstances and the embodiments of the invention can operate in other sequences than described or illustrated herein.
- Moreover, the terms top, bottom, over, under and the like in the description and the claims are used for descriptive purposes. The terms so used are interchangeable under appropriate circumstances and the embodiments of the invention described herein can operate in other orientations than described or illustrated herein.
- Furthermore, the various embodiments, although referred to as "preferred" are to be construed as exemplary manners in which the invention may be implemented rather than as limiting the scope of the invention.
- The present invention generally relates to a door lock fixture which comprises a faceplate and a fixture body. In one embodiment, the door lock fixture is a mortice lock to be inserted into a closure member, in particular in a hollow tubular member thereof. In another embodiment, the door lock fixture is a morticed lock keep which comprises a body portion that is recessed in the support onto which it is mounted. The support is generally formed by a hollow tubular member and can either be a fixed post or a leaf of a double door or gate.
- The invention will be further explained in detail with reference to a morticed lock keep 10. The morticed lock keep 10 is configured to be mounted with its
body 2 through anelongated slot 4 in awall portion 5 of atubular member 3. Thistubular member 3 is part of a gate, as illustrated for example infigure 1 , or of a door or any other type of hinged closure member. Thetubular member 3 extends in alongitudinal direction 13 indicated infigure 1 . - The morticed lock keep 10 is designed for cooperation with a
lock 20 as shown infigure 6 . Thelock 20 may have a locking mechanism of any type. It may comprises alatch bolt 6 which is operated by means of handles 7, adeadbolt 8 which is operated by means of a key in particular through the intermediary of a lock cylinder 35 (for example a single-barrel euro-profile cylinder), or it may comprise a combination of alatch bolt 6 and adeadbolt 8 as in the embodiments illustrated in the drawings. Usually thelatch bolt 6 and thedeadbolt 8 are slideably mounted in thelock 20 to slide between a retracted and an extended position. In the embodiments illustrated in the drawings, thedeadbolt 8 is however hook-shaped and pivots in thelock 20 between its extended and its retracted positions. The lock illustrated infigure 6 is in particular a lock as disclosed inEP 2 186 974EP 3 153 645 - The morticed lock keep 10 comprises a
faceplate 1 and a partiallyhollow body 2. Thefaceplate 1 comprises anelongated opening 9 and the partiallyhollow body 2 forms a correspondingelongated slot 21 in which thelatch bolt 6 and/or thedeadbolt 8 are received as shown infigure 6 . Thehollow body 2 is designed to be located inside thetubular member 3 and thefaceplate 1 is designed to engage an outer surface of awall portion 5 of thetubular member 3. Thefaceplate 1 comprises two openings 12 (i.e. one on either side of the elongated opening 9) which, as described below, are used to mount the morticed lock keep 10 to thetubular member 3. The morticed lock keep 10 illustrated in the figures is in particular a morticed lock keep as disclosed inEP 3 153 645 - An essential difference between the morticed lock keep illustrated in
EP 3 153 645tubular member 3. The fixture body comprises, for eachopening 12, asupport arm 11 which is slideably mounted onto thefixture body 2 along thelongitudinal direction 13 between a retracted position (shown infigures 3A to 3C ) in which thefixture body 2 can be inserted through theelongated slot 4 into thetubular member 3 and an extended position (shown infigures 4A to 4C ). On eachsupport arm 11, there is provided anut 14 which is irrotatably and slideably mounted on therespective support arm 11 along a transverse direction 15 (indicated infigure 5A ) between a rest position (shown infigure 5A ) and an engaging position (shown infigure 5C ). Eachnut 14 comprises a threadedopening 16 configured to receive a bolt 17 (having abolt head 17a and a threadedpart 17b) used to mount the morticed lock keep 10 on thetubular member 3. In the illustrated embodiment, thenut 14 is irrotatable with respect to thesupport arm 11 due to its square (in general non-circular) outer shape. - In the position illustrated in
figures 3A to 3C and5A the twosupport arms 11 are held in a retracted position, more particularly in a position wherein they are retracted into thefixture body 2 so that the morticed lock keep 10 can be inserted easily with itsbody 2 through theslot 4 into thetubular member 3. In their retracted position, thesupport arms 11 therefore do not project out of thebody 2. Each of thesupport arms 11 can slide along thelongitudinal direction 13 from this retracted position to an extended position wherein they project out of thebody 2 so that the threadedopenings 16 in eachnut 14 align with a corresponding one ofopenings 12 in thefaceplate 1 as shown infigure 5B . In this extended position, thesupport arms 11 project respectively above and below thebody 2. By applyingbolts 17 throughopenings 12 in thefaceplate 1 and screwing these into screw threadedopenings 16 in the nuts 14, the nuts 14 engage the inner surface of thewall 5 of thetubular member 3 as shown infigure 5C . In this position, thewall 5 of thetubular member 3 is clamped between thefaceplate 1 and the nuts 14. - Each supporting
arm 11 is slideable from its retracted to its extended position. This may be achieved manually since theopening 9 in thefaceplate 1 and theelongated slot 21 in thebody 2 allow easy access to the supportingarms 11 in their retracted positions. Alternatively, biasing members (e.g. a compression spring) and cooperating latches may be used causing an automatic sliding motion when unlatched. Each supportingarm 11 is further provided with tool engagement means 18 (e.g. a hole) which allows inserting a tool to slide the supportingarms 11 back from their extended position to the retracted position. This may be beneficial in case the morticed lock keep 10 needs removal from thetubular member 3. - Each supporting
arm 11 is bar- or beam-shaped and fits in a corresponding guide on thebody 2 as best shown infigures 3C and4C . This allows for easy sliding of the supportingarms 11. In the illustrated embodiment, the supportingarms 11 are provided with a latchingprotrusion 22 which abuts with acatch 23 in thebody 2. This avoids that the supportingarm 11 can be removed from thebody 2. In other words, in the illustrated embodiment, each supportingarm 11 forms a separate element which is fixed to thebody 2 during manufacturing. The latchingprotrusion 22 and catch 23 also help define the extended position of the supportingarms 11 as no further sliding movement is possible beyondcatch 23 as best shown infigure 5C . The retracted position on the other hand is limited bywall 24 against which the nut-holdingpart 11a of the supportingarm 11 abuts as best shown infigure 5A . - With the fixation system according to the present invention as described above, i.e. the supporting arms with slideably nuts provided thereon, all forces exerted on the
faceplate 1 are directly transferred to the supportingmember 3. In other words, little to no forces are exerted on thefixture body 2. In view thereof, thefaceplate 1 in the illustrated embodiment is manufactured from metal (e.g. stainless steel which is beneficial for outdoors use) so that the large forces that may occur when someone is forcing open a lock do not lead to a deformation of the faceplate. Furthermore, in the illustrated embodiment, thefixture body 2 is made from a plastic material. This allows to manufacture this using injection moulding which is advantageous for mass producing complex-shaped articles. - The morticed lock keep 10 further comprises an L-shaped
stop 26 having afirst leg 26a and asecond leg 26b. Thesecond leg 26b protrudes with respect to thefaceplate 1 and stops a closing motion of a gate, door, or other kind of pivotable closure member. Thefirst leg 26a is pressed between thefaceplate 1 and thewall portion 5 of thetubular member 3. In order to adjust the distance between thesecond leg 26b and theslot 21 inside the morticed lock keep 10 (e.g. to account for uneven alignment with the closure member, varying closure member thicknesses, etc.) thefirst leg 26a is provided with agrooved region 27 that cooperates with another groovedregion 28 provided on the rear side of thefaceplate 1. - In the illustrated embodiment, the grooved
region 28 provided on the rear side of thefaceplate 1 is formed by aseparate metal insert 31 having anopening 32 through which thebolt 17 extends. Alternatively, the groovedregion 28 could be integrally formed with thefaceplate 1, e.g. as a cast element. However, aseparate insert 31 is preferred as this allows forming thefaceplate 1 from a single metal plate which is typically less brittle than a cast element. Either embodiment is advantageous compared to providing the groovedregion 28 in thefixture body 2 as this could lead to damage of thefixture body 2. In particular, the grooved region in such an injection moulded element may break when large forces are exerted on thesecond leg 26b. - The illustrated morticed lock keep 10 is further provided with a covering 29 for aesthetic purposes. This covering 29 is wedged between the
faceplate 1 and thefirst leg 26a as shown infigure 5B . - The
elongated slot 4 is provided withnotches 25 in which thebolts 17 are partially located. Thesenotches 25 allow for an easy alignment of the lock fixture and other details and advantages thereof are described in a patent application titled "Door lock fixture mounted onto a tubular member" filed on the same day by the same applicant as the present application and are incorporated herein by reference. - It will be readily appreciated that the fixation systems with the supporting arms and slideably nuts provided thereon can also be applied to a lock.
- It will be further appreciated that, in non-illustrated embodiments, one of the two supporting
arms 11 can be omitted, for example the lowermost one, and can be replaced by a gap between thefaceplate 1 and thefixture body 2, illustrated for example infigure 3 ofUS 2012/0034021 , so that the fixture can first be slid with this gap at the bottom edge of theslot 4 over thelateral wall 5 of thetubular member 3, after which the fixture body can be pivoted about this edge of theslot 4 into thetubular member 3. - Although aspects of the present disclosure have been described with respect to specific embodiments, it will be readily appreciated that these aspects may be implemented in other forms within the scope of the invention as defined by the claims.
Claims (15)
- A door lock fixture (10) comprising a faceplate (1) and a fixture body (2), the door lock fixture being configured to be mounted with its fixture body through an elongated slot (4) in a wall (5) of a tubular member (3) with the faceplate engaging an outer surface of said wall, the elongated slot extending in a longitudinal direction (13), the faceplate comprising at least one opening (12) arranged to receive a bolt (17) for fixing the door lock fixture to said wall,the fixture body comprising, for said at least one opening, a support arm (11) which is slideably mounted onto the fixture body along the longitudinal direction between a retracted position in which the fixture body can be inserted through said elongated slot into the tubular member, and an extended position,characterized in that the door lock fixture further comprises a nut (14) which is irrotatably and slideably mounted on the support arm along a transverse direction (15) which is substantially perpendicular to the longitudinal direction between a rest position and an engaging position in which the nut, when the support arm is in its extended position, is arranged to engage an inner surface of said wall of the tubular member to clamp said wall between the faceplate and the nut, the nut being provided with a screw threaded hole (16) which is axially aligned with said opening in the faceplate in the extended position of the support arm and which is configured to receive said bolt.
- The door lock fixture according to claim 1, characterised in that the fixture body is manufactured from a plastic material.
- The door lock fixture according to claim 1 or 2, characterised in that the faceplate is manufactured from a metal, preferably stainless steel.
- The door lock fixture according to any one of the preceding claims, characterised in that the support arm is accessible through the front plate.
- The door lock fixture according to any one of the preceding claims, characterised in that the nut is configured to be moved from its rest position to its engaging position by tightening said bolt.
- The door lock fixture according to any one of the preceding claims, characterised in that the support arm is manually slideable from its retracted to its extended position.
- The door lock fixture according to any one of the preceding claims, characterised in that the support arm comprises an engagement means (18) allowing to engage the support arm to slide the support arm from its extended position to its retracted position.
- The door lock fixture according to any one of the preceding claims, characterised in that the support arm comprises one or more latches (22) for avoiding that the support arm reaches a position outside a range defined by its retracted position and its extended position.
- The door lock fixture according to any one of the preceding claims, characterised in that said at least one opening comprises a first opening and a second opening which are located at opposing ends of the faceplate in the longitudinal direction, wherein the support arm associated with said first opening and the support arm associated with said second opening slide away from one another in the longitudinal direction when sliding from their retracted position to their extended position.
- The door lock fixture according to any one of the preceding claims, characterised in that said transverse direction is perpendicular to the faceplate.
- The door lock fixture according to any one of the preceding claims, characterised in that the door lock fixture is a keeper for a door lock, the keeper comprising an elongated opening (9) in the faceplate and a corresponding elongated slot (21) in the fixture body, said at least one opening being preferably adjacent said elongated opening.
- The door lock fixture according to claim 11, characterised in that the keeper comprises an L-shaped stop (26) configured for stopping a closing motion of a closure member, the L-shaped stop having a first leg (26a) and a second leg (26b) which protrudes with respect to the faceplate, the faceplate being provided with a grooved region (27) on its rear side and the first leg of the L-shaped stop being provided with a corresponding grooved region (28) which cooperate with one another to allow adjusting a spacing between the second leg of the L-shaped stop and said elongated slot.
- The door lock fixture according to claim 12, characterised in that the keeper comprises an insert (31) which forms said grooved region on the rear side of the faceplate, the insert having an opening (32) axially aligned with said at least one opening, the L-shaped stop and the insert preferably being manufactured from metal.
- The door lock fixture according to any one of the claims 1 to 11, characterised in that the door lock fixture is a mortice lock.
- A system comprising a tubular member having a wall with an elongated slot therein, the elongated slot extending in a longitudinal direction, characterised in that the system further comprises a door lock fixture according to any one of the preceding claims mounted on the tubular member by a bolt extending through the opening in the face plate and bolted into the screw threaded hole provided in the nut to clamp said wall of the tubular member between the faceplate the nut.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP22162702 | 2022-03-17 |
Publications (1)
Publication Number | Publication Date |
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EP4245951A1 true EP4245951A1 (en) | 2023-09-20 |
Family
ID=80787291
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP23162423.0A Pending EP4245951A1 (en) | 2022-03-17 | 2023-03-16 | Door lock fixture arranged to be mounted onto a tubular member |
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Country | Link |
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EP (1) | EP4245951A1 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007009998A1 (en) | 2005-07-20 | 2007-01-25 | Joseph Talpe | Fixture set |
EP2186974A1 (en) | 2008-11-14 | 2010-05-19 | Joseph Talpe | Cylinder lock with pivotally-mounted bolt. |
US20120034021A1 (en) | 2010-08-04 | 2012-02-09 | Cmech (Guangzhou) Industrial Ltd. | Quickly assemblable mortise lock |
EP3153645A1 (en) | 2015-10-06 | 2017-04-12 | Locinox | Door lock fixture arranged to be mounted onto a tubular member |
-
2023
- 2023-03-16 EP EP23162423.0A patent/EP4245951A1/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007009998A1 (en) | 2005-07-20 | 2007-01-25 | Joseph Talpe | Fixture set |
EP2186974A1 (en) | 2008-11-14 | 2010-05-19 | Joseph Talpe | Cylinder lock with pivotally-mounted bolt. |
US20120034021A1 (en) | 2010-08-04 | 2012-02-09 | Cmech (Guangzhou) Industrial Ltd. | Quickly assemblable mortise lock |
EP3153645A1 (en) | 2015-10-06 | 2017-04-12 | Locinox | Door lock fixture arranged to be mounted onto a tubular member |
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