SE2050183A1

SE2050183A1 - Door lock arrangement comprising elongated guiding element and cam pin and an auxiliary latch bolt and a bolt assembly

Info

Publication number: SE2050183A1
Application number: SE2050183A
Authority: SE
Inventors: Andreas Albèr
Original assignee: Electec System Ab
Priority date: 2018-12-17
Filing date: 2019-11-13
Publication date: 2020-06-18
Also published as: EP3899175A4; EP3899175C0; SE544749C2; EP3899175A1; SE1851598A1; WO2020130904A1; NO20210745A1; EP3899175B1; NO346869B1; SE542823C2

Abstract

A door lock arrangement (1) and a bolt assembly (1500) are disclosed. The bolt assembly (1500) comprises a bolt guiding member (1509) having a first and a second attachment portion (1502, 1504) for releasable attachment of the bolt (18) to the bolt guiding member (1509), wherein the second attachment portion (1504) is offset the first attachment portion (1502) along a longitudinal axis (62) of the faceplate (10).

Description

DOOR LOCK ARRANGEMENT COM PRISING ELONGATED GUIDING ELEMENT AND CAM PIN AND ANAUXILIARY LATCH BOLT AND A BOLT ASSEMBLY TECHNICAL FIELD The present ínventíon relates to door lock arrangements for mounting in doors. Someembodiments ofthe present ínventíon relate to electric door lock arrangements, such as solenoidlock arrangements, solenoid locks, electric locks or the like. ln particular, it is herein disclosed a doorlock arrangement comprising an elongated guiding element, a door lock arrangement comprising a cam pin, an auxiliary latch bolt for installation in a door lock arrangement and a bolt assembly.

BACKGROUND Door lock arrangements have a vast range of applications, such as at hotels, hospitals, officesor the like. For these applications, for example solenoid locks are particularly popular. A commontype of solenoid locks is activated, e.g. unlocked, by means of a Radio Frequency Identification (RFID)tag, a magnetic card or the like. With a solenoid lock of this type, a locking mechanism of thesolenoid lock cannot be operated through actuation of a door handle unless the solenoid lock iselectrically activated (Power-To-Open type locking arrangements). Some solenoid locks allow thedoor handle to operate the locking mechanism without power and do instead require power todeactivate the door handle, i.e. the door is locked when electrically activated (Power-To-Lock typelocking arrangements). These door lock arrangements also often include a knob for manually lockingand unlocking the door, where the knob is only mounted at one side of the door, or the door lock arrangement.

A general problem with known solenoid door lock arrangements is that a housing thereofcomprises many different lever arms and pivoting bodies. This makes space available for electronicsto control and/or monitor the solenoid door lock arrangement severely limited. ln future door lockarrangements, it is expected that further electronics will be built into the housing, e.g. in order toallow for e.g. sensors to register positions of different moving internal mechanism ofthe solenoidarrangements.

EP1354113 discloses a solenoid arrangement for controlling handle operation in a door lock,in which force transmission from an operation axis of a handle or the like to a follower acting on abolt of the lock is arranged by means of a movable coupling member which receives its guidancefrom the solenoid arrangement. The arrangement includes a shaft element which is arranged tomove through a solenoid against the force of a spring and which moves a turnable lever member selecting the operating position of said coupling member. The position of the turning axis of the said lever member with regard to the coupling member is arranged to be selectively changed to provide adesired handle operation. The solenoid arrangement is further provided with a front plate throughwhich a bolt of the lock is movable. A lock case ofthe solenoid arrangement is additionally providedwith an operation axis, to which a follower is installed. The follower is turnablyjournalled to the lockcase and acts on the bolt of the lock through a separate force transmission lever. A disadvantage is thus that space available for electronics is very limited.

For door lock arrangements, there exists a solution that enable a door lock arrangement tobe adapted such that the door, in which the door lock arrangement is installed, can be opened fromeither side of the two sides of the door, such as the inside or the outside of the door, merely byoperating the handle, e.g. without using any existing electronic locking functionality.

For example, EP0620341 discloses a device for adapting a panic-safe lock to the openingdirection of a door, for pre-setting the lock to open only from one side and for temporarily allowingto open it from the opposite side, comprising a pair of annular elements rotatably supportable in thelock and having coaxial polygonal seats for the side-fitting engagement of a respective handle, andthreaded coaxial holes parallel to the axis of the seats, the annular elements being able to rotate incontrast with elastic means from a fixed abutment position, a lever which is pivoted between theannular elements coaxially thereto and has a slot that can be aligned with the threaded holes and inwhich a screw is inserted, the screw being screwed into one of the threaded holes and having such alength as to rotationally couple the lever and the annular element in which the screw has beenscrewed, the other annular element being free, the lever having a first arm for the actuation ofthespring latch, a second arm for the simultaneous actuation of the bolt, and a pawl actuatable bymeans ofthe tumbler ofa key-operated device and suitable to engage teeth of the annular elementsto provide a rotational coupling between the lever and the annular elements. A disadvantage withthis solution may be that there is a risk of losing the screw and that it, at times, may be time consuming and/or cumbersome to move the screw from one hole to another.

Furthermore, it is common to provide the door lock arrangement with a so called auxiliarylatch bolt. When a door, in which such door lock arrangement is installed, is closed, the auxiliarylatch bolt is forced into the door lock arrangement. This causes a locking bolt, such as a dead bolt ora latch bolt, to be secured in its extracted position, i.e. it is prevented that the locking bolt is pushedinto the door lock arrangement. ln the extracted position, the locking bolt projects through and awayfrom a faceplate of the door lock arrangement. ln this manner, an attempt to tamper with thelocking bolt, e.g. by inserting a screw driver in a slit between the door and the door frame in order to push the locking bolt into the door lock arrangement to thereby be able to open the door, may be prevented.

A known auxiliary latch bolt comprises a main body adapted to guide two tiltable barringbodies such that the auxiliary latch bolt moves away from and into the door lock arrangement whena tip of any one ofthe barring bodies is caused to tilt, e.g. due to closing of a door in which thepresent door lock arrangement may be installed. Thanks to that the known auxiliary latch boltcomprises two tiltable barring bodies, the door lock arrangement may be installed in a door with thehinges to the right or left as seen by an observer towards which the door opens. A disadvantage isthat, once the door has been installed, only one of the tiltable barring bodies will be in active usewhen the door closes. A further disadvantage with this auxiliary latch bolt is that it is somewhatcomplex to manufacture.

Another known auxiliary latch bolt has only one barring body. The barring body is rigidlymounted on a transversally movable main body. The barring body is typically mounted with a screwsuch that the barring body may be released and installed again, whereby the auxiliary latch bolt isadapted to left or right hinged doors. A few barring bodies are adapted to handle both left and righthinged doors. A disadvantage with these known auxiliary latch bolts may be that friction between astrike plate ofa door frame, enclosing a door lock arrangement provided with these known auxiliarylatch bolts, and the rigidly mounted barring body may cause unnecessary wear and possibly also undesired sounds when the door is closed.

Moreover, a known door lock arrangement typically has a dead bolt or the like for locking ofthe door in which the door lock arrangement is mounted. A position, along a longitudinal direction ofa faceplate ofthe door lock arrangement, of the dead bolt is usually called "classic" or "modern"positioning. This means that a door with a door lock arrangement with "classic" positioning of thedead bolt should not be installed in a door frame adapted for a door lock arrangement with"modern" positioning ofthe dead bolt. Since if the door would be installed in that door frame thedeadbolt would not coincide with a corresponding cavity that is adapted to receive the deadbolt. lnsome cases, the door frame may be adapted, but in some other cases it may not be desired to adaptthe door frame, e.g. due to fire safety and/or security reasons. For lock manufacturers, this impliesthat door lock arrangements need to be provided in different versions, one for "classic" positioningand another for "modern" positioning. A disadvantage is that maintaining different versions addscosts. A further disadvantage may be that door lock arrangements in stock may not always fit desiredneed in terms of "classic" or "modern" positioning. Sometimes, the term "connect" is also used to refer to the same position as "modern".

SUMMARYln view of the above, an object may be to alleviate or at least reduce one or more of the abovementioned disadvantages and/or problems.

This object, and other objects, may be achieved by the independent claims appended herewith.

According to an aspect, there is thus provided a door lock arrangement for mounting in adoor leaf.

The door lock arrangement comprises a faceplate mountable in the door leaf, and amounting plate adapted to be received by the door leaf, wherein the faceplate and the mountingplate forms a casing.

The casing comprises a rotatable gear arm adapted to translationally displace a latch bolt byrotation about a rotational axis perpendicular to the mounting plate, a lock hub adapted to receive alock actuator spindle for manoeuvring the latch bolt, a hub arrangement adapted to allow the latchbolt to be controlled by actuation of a lever handle spindle, and an elongated guiding element that isdisplaceable between a first position and a second position by translation thereof in a longitudinaldirection ofthe elongated guiding element.

The elongated guiding element is spring biased towards the first position in which the latchbolt protrudes out of the faceplate by that the latch bolt is spring biased. Additionally, the elongatedguiding element, when located in the second position, is arranged to retract the latch bolt, and theelongated guiding element comprises a lock actuation element at a first end thereof in proximity ofthe lock hub. The lock actuation element is further arranged to convert rotation ofthe lock hub to atranslational movement ofthe elongated guiding element from the first position.

Moreover, the elongated guiding element comprises a bolt displacing element at a middleportion thereof in proximity ofthe rotational axis ofthe gear arm, wherein the bolt displacingelement is arranged to convert the translational movement ofthe elongated guiding element to arotation of the gear arm. The elongated guiding element also comprises a lever actuation element ata second end thereof in proximity ofthe hub arrangement, wherein the lever actuation element isarranged to convert rotation of the hub arrangement to the translational movement oftheelongated guiding element.

The elongated guiding element is displaceable along an interior face of the casing inaccordance with the translational movement and the interior face is opposite to the faceplate of thedoor lock arrangement.

Thanks to that the elongated guiding element is adapted to be transversally movable along the interior face of the casing, space inside the casing is made available for use by electronics, suchas a printed circuit board. Moreover, the elongated guiding element enables, at its second end, thehub arrangement to interact directly with the elongated guiding element. Furthermore, theelongated guiding element interacts, at the middle portion thereof, indirectly with the bolt, via thegear arm. ln this manner, the transversal movement of the elongated guiding element along theinterior face is translated to a transversal movement of the bolt along in parallel with a geometricalaxis that is perpendicular to a main plane of a faceplate of the door lock arrangement. Spacerequiring pivotal or tilting movements, usually occurring at levers or arms connected to the hubarrangement, are in this fashion effectively avoided, or at least movement of e.g. the elongatedguiding element is made much less space requiring. Consequently, the door lock arrangementexposes a relatively large free space that may accommodate electronics. As a result, at least one ofthe aforementíoned objects is achieved by the door lock arrangement, having the elongated guidingelement that is transversally movable along the interior face of the casing between the first and second positions.

According to another aspect, there is provided a door lock arrangement for installation in adoor leaf. The door lock arrangement comprises a mounting plate adapted to be received by thedoor leaf.

The mounting plate supports a hub arrangement adapted to selectably control whether abolt is retracted or not upon on actuation of at least one of a first lever handle and a second leverhandle, mountable at a first side ofthe door leaf and a second side of the door leaf, respectively.

The hub arrangement comprises: a first rower, wherein the second engaging arm is biased to disengage the second distal endfrom the second rower adapted to receive a first lever handle spindle, connectable to the first leverhandle, from the first side ofthe door leaf, a second rower adapted to receive a second lever handle spindle, connectable to the secondlever handle, from the second side of the door leaf, and a lever hub adapted to at least partially enclose and receive the first and second rowers.

The hub arrangement further comprises a first engaging arm and a second engaging arm.

The first engaging arm has a first proximal end and a first distal end, wherein the firstengaging arm is biased to keep the first distal end spaced apart from the first rower, wherein the firstproximal end is rotatably mounted at a first face ofthe lever hub, wherein the first face faces the firstside of the door leaf, wherein the first distal end and the first rower are adapted to cause, whenabutting against each other, the lever hub to rotate when the first rower is rotated while allowing the lever hub to rotate while not causing the first rower to rotate.

The second engaging arm has a second proximal end and a second distal end, wherein thesecond engaging arm is biased to keep the second distal end spaced apart from the second rower,wherein the second proximal end is rotatably mounted at a second face of the lever hub, whereinthe second face faces the second side of the door leaf, wherein the second distal end and the secondrower are adapted to cause, when abutting against each other, the lever hub to rotate when thesecond rower is rotated while allowing the lever hub to rotate while not causing the second rower torotate.

The lever hub comprises a through hole in which a cam pin is rotatably installed. The cam pinis rotatable about a longitudinal axis thereof between at least a first rotational position and a secondrotational position, wherein the cam pin has a first end in the vicinity of the first engaging arm and asecond end in the vicinity of the second engaging arm, wherein the first end comprises a first forcingsurface and a first allowing surface, wherein the second end comprises a second forcing surface anda second allowing surface.

When the cam pin is in the first rotational position, the first forcing surface is adapted to abutagainst the first proximal end to force the first distal end, against bias ofthe first engaging arm, toabut against the first rower. Moreover, when the cam pin is in the first rotational position, thesecond allowing surface is adapted to allow the second distal end to be spaced apart from thesecond rower according to bias of the second engaging arm.

When the cam pin is in the second rotational position, the first allowing surface is adapted toallow the first distal end to be spaced apart from the first rower according to bias of the firstengaging arm. Furthermore, when the cam pin is in the second rotational position, the secondforcing surface is adapted to abut against the second proximal end to force the second distal end,against bias ofthe second engaging arm, to abut against the second rower. ln this manner, the door lock arrangement is easily adapted to allow the door leaf to beopened from any one side of the door leaf. According to further embodiments disclosed herein, thedoor lock arrangement is further easily adapted to allow the door leaf to be opened, by turning of alever handle, from both sides of the door leaf, and/or from none of the sides of the door leaf. As aresult, at least one of the aforementioned objects is achieved by the door lock arrangement,comprising a turnable cam pin, having at least a first rotational position and a second rotationalposition, wherein the first rotational position allows the door leaf to be opened by the first leverhandle and/or the second rotational position allows the door leaf to be opened by the second lever handle.

According to a further aspect, there is hence provided an auxiliary latch bolt for installation in a door lock arrangement, wherein the auxiliary latch bolt, when mounted in the door lock arrangement, is displaceable between a locking position and an unlocking position by translationthereof in parallel with a geometrical axis that is perpendicular to a main plane of a faceplate of thedoor lock arrangement.

Furthermore, the auxiliary Iatch bolt comprises a guiding unit adapted to guide the auxiliaryIatch bolt when being displaced between the locking position and the unlocking position, The guiding unit is adapted to allow a bolt of the door lock arrangement to be locked in aprojecting position, in which the bolt projects through the faceplate, when the auxiliary Iatch bolt islocated in the locking position. The guiding unit is also adapted to allow the bolt to be retracted atleast partly into an interior of the door lock arrangement, when the auxiliary Iatch bolt is located inthe unlocking position.

The auxiliary Iatch bolt, when mounted in the door lock arrangement, projects less, or not atall, through the faceplate in the locking position than in the unlocking position. The auxiliary Iatchbolt, when mounted in the door lock arrangement, is spring biased towards the unlocking position.

The auxiliary Iatch bolt comprises an actuation unit comprising a wedge-shaped portion,having two side surfaces meeting at a tip ofthe wedge-shaped portion.

The guiding unit is adapted to guide the actuation unit when the tip is caused to move awayfrom a secondary plane that is perpendicular to the main plane of the faceplate and parallel with alongitudinal axis of the faceplate, wherein the tip is located in the secondary plane when the auxiliaryIatch bolt is in the unlocking position.

The actuation unit comprises a base portion having at least two supporting surfaces arrangedto abut against the faceplate when the auxiliary Iatch bolt is located in the unlocking position. Thebase portion has a rounded face adapted to the guiding unit.

The guiding unit is adapted to allow the rounded face ofthe actuation unit to abut againstthe guiding unit. The rounded face is further adapted to guide the actuation unit when the tip iscaused to move away from the secondary plane, and the auxiliary Iatch bolt is composed of only oneactuation unit.

Thanks to that the auxiliary Iatch bolt is composed of only one actuation unit that abutsagainst the rounded face, the auxiliary Iatch bolt is easy to manufacture. A reason for this is that theauxiliary Iatch bolt includes few parts that have rigid shapes in that the parts includes no complex projecting parts or otherwise convoluted shapes.

According a still further aspect, there is hence provided a bolt assembly adapted to attach abolt of a door lock arrangement, the bolt being extractable and retractable relatively a faceplate ofthe door lock arrangement. The bolt assembly comprises a bolt guiding member, having a first attachment portion for releasable attachment of the bolt to the bolt guiding member and being arranged to translationally guide the bolt along a geometrical axis that is perpendicular to a mainplane ofthe faceplate for extraction and retraction of the bolt relatively the faceplate, when the boltguiding member is mounted in the door lock arrangement. The bolt guiding member has a secondattachment portion for releasable attachment of the bolt to the bolt guiding member. The secondattachment portion is offset the first attachment portion along, such as parallelly with, a longitudinalaxis of the faceplate when the bolt guiding member is mounted in the door lock arrangement. ln this manner, the bolt assembly enables a change or a swap of a position of the bolt in thatthe position ofthe bolt may for example be chosen according to the "classic" or "modern"positioning by attaching the bolt in the first or second attachment portion, respectively. Accordingly,a length of the offset between the first and second attachment portions may typically be defined bya difference in position of the bolt according to "classic" and "modern", respectively.

Thanks to the second attachment portion, the bolt assembly enables adaptíon to "classic" or"modern" positioning in an easy manner which requires few, or no, parts that are specifically provided for only one ofthe "classic" and "modern" positioning. ln some embodiments, the bolt assembly comprises the faceplate and a cover plate. Thefaceplate has a recess adapted to accommodate the cover plate. The recess may typically face awayfrom an interior of a door lock assembly together with which the bolt assembly is used, e.g.mounted. The cover plate is releasably mountable at the faceplate. The cover plate comprises anopening, which is adapted to allow the extraction and the retraction of the bolt when the bolt isattached to the first attachment portion and when the cover plate is mounted at the faceplate, andwherein the cover plate is adapted to cover the second attachment portion when the cover plate ismounted at the faceplate. For example, a shape of the opening in the cover plate is derived from acontour of the bolt, wherein the contour is seen in a cross-section that is parallel with the faceplatewhen the cover plate is mounted at the faceplate. Further, a position of the opening in the coverplate may also be located oppositely to the first attachment portion when the cover plate is mountedat the faceplate.

Thanks to the cover plate, the second attachment portion is protected. An advantage may bethat manipulation ofthe lock with a tool, such as a picklock or the like, may be hindered, or obstructed. ln some embodiments, the cover plate is reversibly mountable at the faceplate. The openingis offset along the longitudinal axis ofthe faceplate relatively a center in a longitudinal direction ofthe cover plate when the cover plate is mounted at the faceplate. A length of the offset is adapted to allow the bolt to be alternatingly mounted at the first and second attachment portions upon reversed re-mounting of the cover plate.

As an example, the cover plate may thus be mountable in the faceplate in a first mode and asecond mode. The first mode may yield a first opening position of the opening. The first openingposition is located at a distance from the center, still along the longitudinal axis of the faceplate, thusalso in a longitudinal direction ofthe cover plate. The second mode may yield a second openingposition of the opening. The second opening position is located at the distance, i.e. the samedistance, from the center, again still along the longitudinal axis of the faceplate, thus again also in thelongitudinal direction ofthe cover plate. The cover plate may thus be reversibly mountable toassume the first mode or the second mode.

As a further example, the recess may snugly fit to a shape of the cover plate, whereby thecenter of the cover plate is at a center position, e.g. one and the same position. The center positionof the center is thus assumed both when the cover plate is mounted in the first mode and when thecover plate is mounted in the second mode. ln this manner, the cover plate, i.e. one and the same cover plate, may be reversely mountedto adapt to door frames configured for "modern" or "classic" positioning of the bolt. An advantage is,hence, that the same cover plate may be used for both "modern" and "classic" positioning ofthebolt. A further advantage may be that there is to bring special parts in order to be able to change thebolt position from "modern" to "classic" or the other way around. As a consequence, there is norequirement of being able to foresee the change ofthe bolt position, e.g. before arriving at a site of installation and/or leaving a supply of door lock parts. ln some embodiments, the faceplate is arranged to allow mounting of the cover plate at afirst location and a second location. The first location is offset the second location along thelongitudinal axis of the faceplate.

As an example, the recess is shaped to accommodate the cover plate both when the coverplate is mounted at the first location, e.g. within the recess, and when the cover plate is mounted at the second location, e.g. within the recess. ln some embodiments, the cover plate is non-reversibly mountable at the faceplate. Theopening is offset along the longitudinal axis of the faceplate relatively an end of the faceplate. Alength of the offset is adapted to allow the bolt to be mounted at the first or second attachmentportions.

As an example, the cover plate may be provided as a first cover plate or a second cover plate.With the first cover plate, the length ofthe offset may be adapted to allow the bolt to be mounted at the first attachment portion. ln more detail, the opening of the first cover plate may be positioned in line with the first attachment portion when seen along the geometrical axis, e.g. through a center ofthe opening of the first cover plate. With the second cover plate, the length ofthe offset may beadapted to allow the bolt to be mounted at the second attachment portion. ln more detail, theopening of the second cover plate may be positioned in line with the second attachment portionwhen seen along the geometrical axis, e.g. through a center ofthe opening of the second cover plate.The first cover plate is thus different from the second cover plate. This means that the cover plate isprovided in two different versions, one for "classic" positioning and one for "modern" positioning.ln a further example, according to the same basic principle as directly above, there may be provided a first face plate and a second face plate, each having a respective opening, whose locationalong the longitudinal axis of the faceplate corresponds to, or matches with, the first or secondattachment portion. The first face plate is different from the second face plate. This means that theface plate is provided in two different versions, one for "classic" positioning and one for "modern" positioning. ln some embodiments, the bolt assembly further comprises an attachment portion coveradapted to be releasably mountable at the first and second attachment portion alternatingly. As anexample, the attachment portion cover may be alternatingly mounted, such as releasably mounted,in the first or second attachment portion. The attachment portion cover is further adapted topresent a flat surface facing away from the bolt guiding member when mounted in the first or secondattachment portion.

The flat surface may be aligned with the faceplate when the bolt is in an extracted position.Alternatively, with embodiments including the cover plate, the flat surface may be aligned with a boltguiding member surface of the bolt guiding member. The bolt guiding member surface faces the faceplate when the bolt assembly is used, or mounted, together with a door lock arrangement.

An advantage may be that the attachment portion cover protects the one ofthe first andsecond attachment portions that the bolt is not mounted in. The attachment portion cover protectssaid the one of the first and second attachment portions from being contaminated, e.g. with dust, dirt or the like, and/or from being manipulated by a tool as mentioned above.

According to a still other aspect, the object may be achieved by a door lock arrangement formounting in a door leaf. The door lock arrangement comprises a bolt assembly according to any one of the embodiments and/or examples disclosed herein.

BRIEF DESCRIPTION OF THE DRAWINGS The various aspects of embodiments disclosed herein, including particular features and 11 advantages thereof, are explained in the following detailed description and the accompanyingdrawings. The drawings are not to scale and any measures indicated are merely provided asexamples for ease of understanding.

Figure 1 is an overview illustrating a door in which an exemplifying door lock arrangement isinstalled.

Figure 2 is a side view illustrating the door lock arrangement with connecting lever spindlesand lever handles.

Figure 3 includes three views illustrating the exemplifying door lock arrangement.

Figure 4 includes views illustrating features relating to the elongated guiding element.

Figure 5 illustrates an exemplifying gear arm according to some examples herein.

Figure 6 illustrates an exemplifying lock hub according to some examples herein.

Figure 7 is a cross-sectional view illustrating a printed circuit board mounted in theexemplifying door lock arrangement.

Figure 8 shows plan views illustrating difference between a known printed circuit board andan exemplifying printed circuit board to be used with at least some embodiments herein.

Figure 9 includes views illustrating an exemplifying hub arrangement according to someexamples herein.

Figure 10 includes views illustrating an exemplifying cam pin.

Figure 11 shows a set of views illustrating locking and unlocking positions of an auxiliary latchbolt as well as an exploded view of some parts relating to the auxiliary latch bolt.

Figure 12 illustrates an exemplifying actuation unit of the auxiliary latch bolt.

Figure 13 is a perspective view illustrating an exemplifying locking member that is adapted tocooperate with the auxiliary latch bolt to achieve locking and unlocking of an exemplifying bolt.

Figure 14a and Figure 14b are perspective views illustrating an exemplifying bolt assemblywhen mounted in a door lock arrangement.

Figure 15a through Figure 15c are perspective views illustrating parts of an exemplifying boltassembly.

Figure 16 is an exploded perspective view illustrating parts of an exemplifying bolt assemblyrelatively a door lock arrangement in which the exemplifying bolt assembly is mountable.

Figure 17a through Figure 17e include side views, perspective view and cross-sectional viewsof an exemplifying bolt assembly.

Figure 18a and Figure 18b are plan views illustrating an exemplifying bolt assembly.

Figure 19a and Figure 19b are plan views illustrating another exemplifying bolt assembly.

Figure 20a and Figure 20b are perspective views illustrating details of a still further exemplifying bolt assembly. 12 DETAILED DESCRIPTION Figure 1 illustrates a door lock arrangement 1 when installed, or mounted, in a door leaf 2, ordoor for short.

To the left in Figure 1, illustrating a plan view ofthe door leaf 2, it is shown that the door lockarrangement 1 comprises a first hub 4 for receiving a lock lever (not shown) and a second hub 6 forreceiving a lever handle 8. The door leaf 2 is usually mounted in a door frame via hinges 9.

To the right in Figure 1, illustrating a cross-sectional view of the door leaf 2, it is shown thatthe door leaf 2 may be provided with one handle at each side ofthe door leaf 2, i.e. a first handle 8a and a second handle 8b.

Turning to Figure 2, a more detailed cross-sectional view of the door lock arrangement 1 isprovided. As illustrated, the first hub 4 may be adapted to receive a lock actuator spindle 202 thatmay be connected to a knob 204 for manually manoeuvring the door lock arrangement. By use oftheknob 204, opening and/or closing of the door may be enabled.

Additionally, the second hub 6 is adapted to receive at least one ofa first lever handlespindle 206 and a second lever handle spindle 208. ln turn, each of the first and second lever handlespindles 206, 208 may be connected to a respective lever handle, such as the first and second handles 8a, 8b.

Figure 3 shows, in a cross-sectional view and two different perspective views as enumeratedfrom the left to right, an exemplifying door lock arrangement 1 according to some embodimentsherein. The exemplifying door lock arrangement 1 includes all aspects disclosed herein for reasons ofsimplicity. lt shall, however, be understood that the aspects disclosed herein may be implementedseparately. Accordingly, there may be provided other door lock arrangements that include any one or more of the aspects of the present invention.

Generally, with reference to the cross-sectional view of Figure 3, the door lock arrangement1 for mounting in the door leaf 2 comprises a faceplate 10 mountable in the door leaf 2, and amounting plate 12 adapted to be received by the door leaf 2. The faceplate 10 comprises a firstopening 52 adapted to receive an auxiliary latch bolt and a second opening 54 adapted to receive a bolt 18. The faceplate 10 and the mounting plate 12 forms a casing 14.

The casing 14 comprises a rotatable gear arm 16 adapted to translationally displace the bolt 18 by rotation about a rotational axis 20 perpendicular to the mounting plate 12. The bolt 18 may be 13 a latch bolt, a dead bolt or the like depending on realization of the door lock arrangement 1. lt is wellknown that some door lock arrangements include one or more bolts selected from a group comprising at least a latch bolt, a dead bolt and the like.

Moreover, the casing 14 compríses a lock hub 22 adapted to receive a lock actuator spindle202 for manoeuvring the bolt 18. The lock hub 22 may typícally connect to a knob for manuallydisplacing the bolt 18, whereby opening of the door is possible in case being closed in the first place.

The casing 14 further compríses a hub arrangement 24 adapted to allow the bolt 18 to becontrolled by actuation of a lever handle spindle, such as the first and second lever handle spindles206, 208 as shown in Figure 2. The lever handle spindle may have a square cross-section. Therefore,the hub arrangement 24 may be a square hub arrangement.

The hub arrangement 24 may comprise a rower 25 adapted to receive the lever handlespindle, and a lever hub 29 adapted to at least partially enclose and receive the rower 25. ln order tocooperate well with the hub arrangement 24 the rower may comprise a square-shaped cavity for receiving the lever handle spindle. ln one exemplifying embodiment of the door lock arrangement 1 of Figure 3, the casing 14further compríses an elongated guiding element 26 that is dísplaceable between a first position 401and a second position 402 by translation thereof in a longitudinal direction 406 of the elongatedguiding element 26 as illustrated in Figure 4.

The elongated guiding element 26 is spring biased towards the first position 401 in which thebolt 18 protrudes out ofthe faceplate 10 by that the bolt 18 is spring biased. ln Figure 4, springbiasing towards the first position is achieved by a spring 405.

The elongated guiding element 26 is arranged to retract the bolt 18, when the elongatedguiding element 26 is located in the second position 402.

Moreover, the elongated guiding element 26 compríses a lock actuation element 28 at a firstend 411 thereof in proximity of the lock hub 22. The lock actuation element 28 is arranged to convertrotation of the lock hub 22 to a translational movement of the elongated guiding element 26 fromthe first position 401, e.g. in a direction away from the first position. Preferably, a one-wayconversion of the rotation ofthe loch hub 22 to translational movement ofthe elongated guidingelement 26 is provided. ln this manner, the lock hub 22 is not necessarily rotated when the elongated guiding element 26 is displaced from the first position 401 to the second position 402.

The elongated guiding element 26 compríses a bolt displacing element 30 at a middle portion 413 thereof in proximity ofthe rotational axis 20 of the gear arm 16, wherein the bolt displacing 14 element 30 is arranged to convert the translational movement of the elongated guiding element 26to a rotation of the gear arm 16.

The elongated guiding element 26 comprises a lever actuation element 32 at a second end412 thereof in proximity ofthe hub arrangement 24, wherein the lever actuation element 32 isarranged to convert rotation of the hub arrangement 24 to the translational movement of theelongated guiding element 26.

The elongated guiding element 26 is displaceable along an interior face 34 of the casing 14 inaccordance with the translational movement, wherein the interior face 34 is opposite to thefaceplate 10 of the door lock arrangement 1. The interior face 34 may be parallel with the faceplate10. lt may be noted that the elongated guiding element 26 may abut directly to the lock hub 22at the first end 411 ofthe elongated guiding element 26, abut directly to the hub arrangement 24 atthe second end 412 of the elongated guiding element 26 and abut directly to the gear arm 16 at themiddle portion 413 of the elongated guiding element 26 between the first and second ends 411, 412.Typically, the gear arm 16 is adapted to displace the bolt 18 when rotated by translation of the elongated guiding element 26.

The elongated guiding element 26 may further be operable by means of actuation of thelever handle spindle 206, 208 and the lock actuator spindle 202 to be displaced between the first andsecond positions 401, 402. Hence, in this manner, the elongated guiding element may be displacedbetween the first and second positions 401, 402 according to operation be e.g. a user, a human, a person or any one attempting to open and/or close the door.

The lock actuation element 28 may comprise a fork 420 adapted to be received by at leastone groove 850 of the lock hub 22 to convert the rotation of the lock hub 22 to the translationalmovement ofthe elongated guiding element 26. ln this manner, the rotation of the lock hub 22 isefficiently converted to the translational movement of the elongated guiding element 26 whilerequiring a very limited amount of space in the casing 14. For example, the rotation of the lock hub22 does not cause arms or levers to rotate, which normally would require relatively large amounts ofspace within the casing 14. The fork 420 together with said at least one groove 850 of the lock hub22 forms an exemplifying mechanism to achieve the abovementíoned one-way conversíon.

The bolt displacing element 30 may comprise a projecting part 31 adapted to convert therotation of the hub arrangement 24 to the translational movement of the elongated guiding element26 to cause the bolt 18 to be retracted.

The lever actuation element 32 may comprise a first set of gear teeth 430 adapted to be received by a second set of gear teeth 910 of the lever hub 29, as shown in more detail in Figure 9, toconvert the rotation of the lever hub 29 to the translational movement of the elongated guidingelement 26. ln this manner, clockwise or counter-clockwise rotation ofthe lever hub 29 may betransferred to the translation of the elongated guiding element 26, while only requiring the lever hub29 and the elongated guiding element 26 to connect, or abut, with each other at one small section,e.g. 90 degrees or less, of an imaginary circle that is concentric with a rotatíonal axis ofthe lever hub29.

As described above, this means that the elongated guiding element 26 is arranged to bedisplaceable without rotation (from a first position 401) to a second position 402, in which the bolt18 is retracted.

Again, the elongated guiding element 26 is arranged to be biased towards the first position401 in which the lock hub 22 is in a first rotatíonal hub position. When the lock hub 22 is rotated, e.g.by means of a knob, the lock hub 22 leaves the first rotatíonal hub position, counter-clockwise orclockwise, while the elongated guiding element 26 at the same time is forced to leave its first biasedposition 401.

The lock hub 22 is connected to the guiding element 26 to provide a one-way conversion ofspindle rotation to translational movement of the elongated guiding element, e.g. thanks to the aforementíoned fork as an exemplifying realization.

Figure 5 illustrates the gear arm 16 according to an exemplifying realization. A lever portion550 of the gear arm 16 is spaced away from the mounting plate in order to allow the printed circuitboard to fit under the lever portion 550. The gear arm 16 comprises a projection 552 projecting froma cylindrical housing 554 enclosing the rotatíonal axis 20 (shown in Figure 3) of the gear arm 16.

At a distal portion 556 of the gear arm 16, a preventing surface 558 is adapted to preventthat the bolt is locked in the extracted position when the elongated guiding element 26 is displaced towards its second position 402.

Figure 6 illustrates the lock hub 22 according to an exemplifying realization. ln this example,the groove 850 extends along somewhat more than half of the circumference ofthe lock hub 22.Notably, the lock hub 22 comprises two abutting surfaces 852, 854, which are adapted to cause the elongated guiding element 26 to be displaced from its first position 401 when desired.

Figure 7 illustrates an exemplifying printed circuit board 752 which takes advantage of thespace made available, amongst others thanks to the elongated guiding element 26. Other shapes of the exemplifying printed circuit board may be contemplated by the skilled person. 16 Figure 8 shows two plan views, to the left one of a known printed circuit board 754 using thespace available in a known door lock arrangement, and to the right the printed circuit 752 board of Figure 7.

Figure 9 illustrates in more detail an exemplifying hub arrangement 24. ln this example, thehub arrangement 24 comprises a cam pin 510, which may be rotated between at least a firstrotational position and a second rotational position to selectively cause either of the first or secondlever handle 8a, 8b to be operational for opening of the door 2.

Hence, according to another aspect, there may be provided a door lock arrangement 1 forinstallation in a door leaf2. Again, the door lock arrangement 1 comprises a mountíng plate 12adapted to be received by the door leaf 2.

The mountíng plate 12 supports, or upholds, a hub arrangement 24.

The hub arrangement 24 is adapted to selectably control whether a bolt is retracted or notupon on actuation of at least one of a first lever handle 8a and a second lever handle 8b, mountableat a first side 5 of the door leaf 2 and a second side 7 of the door leaf 2, respectively.

The hub arrangement 24 further comprises a first rower 25a, wherein the second engagingarm 504 is biased to disengage the second distal end 506 from the second rower 25b adapted toreceive a first lever handle spindle, connectable to the first lever handle 8a, from the first side of thedoor leaf 2, and a second rower 25b adapted to receive a second lever handle spindle, connectableto the second lever handle 8b, from the second side of the door leaf2.

Moreover, the hub arrangement 24 comprises a lever hub 29 adapted to at least partiallyenclose and receive the first and second rowers 25a, 25b.

Firstly, the hub arrangement 24 further comprises a first engaging arm 501 having a firstproximal end 502 and a first distal end 503, wherein the first engaging arm 501 is biased to keep thefirst distal end 503 spaced apart from the first rower 25a, wherein the first proximal end 502 isrotatably mounted at a first face ofthe lever hub 29, wherein the first face faces the first side of thedoor leaf 2, wherein the first distal end 503 and the first rower 25a are adapted to cause, whenabutting against each other, the lever hub 29 to rotate when the first rower 25a is rotated whileallowing the lever hub 29 to rotate while not causing the first rower 25a to rotate.

Secondly, the hub arrangement 24 further comprises a second engaging arm 504 having asecond proximal end 505 and a second distal end 506, wherein the second engaging arm 504 isbiased to keep the second distal end 506 spaced apart from the second rower 25b, wherein thesecond proximal end 505 is rotatably mounted at a second face ofthe lever hub 29, wherein the second face faces the second side of the door leaf 2, wherein the second distal end 506 and the 17 second rower 25b are adapted to cause, when abutting against each other, the lever hub 29 to rotatewhen the second rower 25b is rotated while allowing the lever hub 29 to rotate while not causing the second rower 25b to rotate.

Returníng to the cam pin 510, the lever hub 29 comprises a through hole in which the campin 510 is rotatably installed.

The cam pin 510 is rotatable about a longitudinal axis thereof between at least a firstrotational position and a second rotational position. A difference in rotation between the first andsecond rotational positions may be 90 degrees, 180 degrees or another suitable value. An advantagewith 90 degrees compared to 180 degrees may be that the cam pin 510 need be rotated less to change which lever handle that active, i.e. effective for causing the retraction of the bolt.

As shown in Figure 10, the cam pin 510 has a first end 602 in the vicinity of the first engagingarm 501 and a second end 610 in the vicinity of the second engaging arm 504, wherein the first end602 comprises a first forcing surface 604 and a first allowing surface 606, wherein the second end610 comprises a second forcing surface 612 and a second allowing surface 614.

When the cam pin 510 is in the first rotational position, the first forcing surface 604 isadapted to abut against the first proxímal end 502 to force the first distal end 503, against bias ofthefirst engaging arm 501, to abut against the first rower 25a. Moreover, when the cam pin 510 is in thefirst rotational position, the second allowing surface 614 is adapted to allow the second distal end506 to be spaced apart from the second rower 25b according to bias of the second engaging arm504.

When the cam pin 510 is in the second rotational position, the first allowing surface 606 isadapted to allow the first distal end 503 to be spaced apart from the first rower 25a according to biasof the first engaging arm 501. Furthermore, when the cam pin 510 is in the second rotationalposition, the second forcing surface 612 is adapted to abut against the second proxímal end 505 toforce the second distal end 506, against bias of the second engaging arm 504, to abut against the second rower 25b.

The mounting plate 12 may preferably comprise an opening 50 adapted to reveal a butt 620,provided at the second end 610 of the cam pin 510, that is adapted to allow the cam pin 510 to berotated by engagement with the butt 620. ln this manner, the cam pin 510 may be rotated while the hub arrangement 24 remains installed at the mounting plate 12. ln some embodiments, the door lock arrangement 1 may be an electric door lock 18 arrangement 1. ln these embodiments, the mounting plate 12 may hold an electrically activatablemoving member 40 having a displaceable element 42 that is displaceable between an engagíngposition and a non-engagíng position based on electrical activation of the electrically activatablemoving member 40. The electrically activatable moving member may be a solenoid, an electric motoror the like. The displaceable element 42 ensures that both the first and second engagíng arms 501,504 are engaged with the first and second rowers 25a, 25b, respectively, when the displaceableelement 42 is in the engagíng position and wherein the displaceable element 42 allows both the firstand second engagíng arms 501, 504 to disengage with the first and second rowers 25a, 25b,respectively, when the displaceable element 42 is in the non-engagíng position. lt may here be noted that according to prior art, a solenoid always activates both arms, i.e.there is no means to against the bias ofthe arm to force the arm to always be engaged with therespective rower, e.g. the first and/or second rower 25a, 25b. An idea of the cam pin is thus that thecam pin by rotation exposes different sides, or faces, thereof to the first and second engagíng arms501, 504 at the first and second ends 602, 610, respectively, Therefore, the_first forcing surface 604 and the second forcing surface 612 may have manydifferent shapes that may suitably achieve that the first and/or second engagíng arms 501, 504becomes engaged against their biases. For example, the first and second forcing surfaces 604, 612may be convex, protruding or the like. Similarly, the first and second allowing surfaces 606, 614 mayhave many different shapes that may suitably achieve that the first and/ second engagíng arms 501,504 are allowed to be spaced apart from its respective rower 25a, 25b. For example, the first and second allowing surfaces 606, 614 may be concave, formed as a recess or the like.

The lever hub 29 may have a throughbore that emanates from the through hole and that isperpendicular to the through hole, wherein a ball spring plunger 520 is installed in the throughboreto secure the cam pin 510. As a result, rotation ofthe cam pin 510 is made inert to avoid unintentional rotation thereof. ln some embodiments, the cam pin 510 is rotatable about the longitudinal axis thereof between at least the first and second rotational positions and a third rotational position. ln theseembodiments, the first end 602 comprises a further first allowing surface 607, and the second end610 comprises a further second allowing surface 615. Additionally, when the cam pin 510 is in thethird rotational position, the first further allowing surface 607 is adapted to allow the first distal end503 to be spaced apart from the first rower 25a according to bias ofthe first engagíng arm 501. Thisfurther means that, when the cam pin 510 is in the third rotational position, both the first forcing surface 604 and the first allowing surface 606 are directed towards other direction than the first 19 rower 25a.

When the cam pin 510 is in the third rotational position, the second further allowing surface615 is adapted to allow the second distal end 506 to be spaced apart from the second rower 25baccording to bias of the second engaging arm 504. This further means that, when the cam pin 510 isin the third rotational position, both the second forcing surface 612 and the second allowing surface614 are directed towards other direction than the first rower 25a.

As illustrated by the dotted lines of the cross-sectional views of the first and second ends602, 610 of the cam pin 510 in the upper portion of Figure 10, the first and the further first allowingsurfaces 606, 607 and the second and the further second allowing surface 614, 614 may be differentportions of a respective common surface.

According to the embodiment of Figure 10, the rotational difference between the first andsecond rotational positions is 180 degrees, and the third rotational position may be located betweenthe first and second rotational positions, e.g. at 90 degrees. Other embodiments may have different values of the angle for rotational difference. ln Figure 11, a further aspect of the present invention is illustrated. Three portions of Figure11 illustrate locking and unlocking positions of an exemplifying auxiliary latch bolt 800 for installationin a door lock arrangement, such as the one described above or similar door lock arrangement.

The auxiliary latch bolt 800, when mounted in the door lock arrangement 1, is displaceablebetween a locking position 704, 706 and an unlocking position 702 by translation thereof in parallelwith a geometrical axis 63 that is perpendicular to a main plane 60 of a faceplate 10 of the door lockarrangement 1.

The auxiliary latch bolt 800 comprises a guiding unit 802 adapted to guide the auxiliary latch bolt 800 when being displaced between the locking position 704, 706 and the unlocking position 702.

The guiding unit 802 is adapted to allow a bolt 18 of the door lock arrangement 1 to belocked in a projecting position, in which the bolt projects through the faceplate 10, when theauxiliary latch bolt 800 is located in the locking position 704, 706. The bolt 18 is allowed to, unlesslocked by the auxiliary latch bolt 800, be retracted while being biased to be extracted through thefaceplate 10.

The guiding unit 802 is adapted to allow the bolt to be retracted at least partly into aninterior ofthe door lock arrangement 1, when the auxiliary latch bolt 800 is located in the unlockingposition 702.

The auxiliary latch bolt 800, when mounted in the door lock arrangement 1, projects less, ornot at all, through the faceplate 10 in the locking position 704, 706 than in the unlocking position702.

The auxiliary Iatch bolt 800, when mounted in the door lock arrangement 1, is spring biasedtowards the unlocking position 702.

The auxiliary Iatch bolt 800 comprises an actuation unit 801 comprising a wedge-shapedportion 804, having two side surfaces 806, 808 meeting at a tip 810 of the wedge-shaped portion804.

The guiding unit 802 is adapted to guide the actuation unit 801 when the tip is caused tomove away from a secondary plane 61 that is perpendicular to the main plane 60 of the faceplate 10and parallel with a longitudinal axis 62 ofthe faceplate 10, wherein the tip 810 is located in thesecondary plane 61 when the auxiliary Iatch bolt 800 is in the unlocking position 702.

The actuation unit 801 comprises a base portion 812 having at least two supporting surfaces816, 818 arranged to abut against the faceplate 10 when the auxiliary Iatch bolt 800 is located in theunlocking position 702. The wedge-shaped portion 804 typically projects from and tapers in adirection away from said at least two supporting su rfaces 816, 818.

The base portion 812 has a rounded face 814 adapted to the guiding unit 802. The baseportion 812 may thus be formed as a cylindric segment, a box with heavily rounded corners or the like. ln particular, the guiding unit 802 is adapted to allow the rounded face 814 ofthe actuationunit 801 to abut against the guiding unit 802. The rounded face 814 is further adapted to guide theactuation unit 801 when the tip 810 is caused to move away from the secondary plane 61. Thismeans that a portion of the guiding unit 802 towards the actuation unit 801 may be concave and formed as an inner surface 803 of a cylindric segment.

Furthermore, the auxiliary Iatch bolt 800 is composed of only one actuation unit 801. Sincethere is only one actuation unit 801, there is e.g. less risk ofthat dirt or other debris may cause theactuation unit 801 to malfunction. With two actuation units, as in the prior art, debris may get stuckbetween the two moving and tilting actuation units and cause malfunction of the auxiliary Iatch bolt 800.

The actuation unit 801 may preferably be symmetric with respect to the secondary plane 61,being centrally located with respect to the faceplate 10. ln this manner, the auxiliary Iatch bolt 800 may be equally well adapted for a right-hand opened door or a left-hand opened door.

An angle between the secondary plane 61 and the side surfaces 806, 808 may be between 20 and 60 degrees, more preferably between 25 and 40 degrees. By adjusting the magnitude of the 21 angle, the displacement of the auxiliary latch bolt 800 into the interior ofthe door lock arrangement1. E.g. the lesser the angle, the larger the displacement into the interior of the door lock arrangement1. The angle may also depend on a depth of the faceplate, where the depth is measured perpendicularly to the secondary plane 61.

Figure 12 illustrates a series of views illustrating the exemplifying auxiliary latch bolt 800. ln this exemplary embodiment of the actuation unit 801, the aforementioned angle is about28 degrees, e.g. +/- two degrees.

Said at least two supporting surfaces 816, 818 may be one and the same surface, or they maybe separated by e.g. a groove 817 or other indentation. An idea of said at least two supportingsurfaces 816, 818 is that the actuation unit 801 ofthe auxiliary latch bolt 800 is caused to rotateabout one of said at least two supporting surfaces 816, 818 when being displaced in a secondary direction perpendicular to the secondary plane 61.

Figure 13 shows an exemplifying locking member 13 that is adapted to cooperate with theauxiliary latch bolt 800 to achieve locking and unlocking of an exemplifying bolt, such as the bolt 18.

The locking member 13 has a hook portion 1010 adapted to engage with the bolt, wherebythe bolt is prevented from being further retracted into the casing 14. Moreover, the locking member13 has a protruding locking support 1020 adapted to engage with the guiding unit 802 when theauxiliary latch bolt 800 is in the unlocking position 702. Furthermore, the locking member 13 isbiased to rotate such that the hook portion 1010 engages with the bolt unless the locking member 13 is inhibited by e.g. the gear arm 16.

Figure 14a and Figure 14b shown an exemplifying bolt assembly when mounted in a doorlock arrangement 1, e.g. a door lock arrangement 1 for mounting in a door |eaf2 as shown above.The door lock arrangement 1 comprises a bolt assembly according to any one of the exemplifyingembodiments illustrated herein with reference to Figure 14 through Figure 20.

The bolt assembly 1500, shown in more detailed with reference to Figure 15 below, isadapted to attach a bolt 18 of the door lock arrangement 1. Figure 14a illustrates when the boltassembly 1500 is mounted in the door lock arrangement 1 and when the bolt assembly 1500 isadapted to "modern" positioning of the bolt 18. Oppositely, Figure 14b illustrates when the boltassembly 1500 is mounted in the door lock arrangement 1 and when the bolt assembly 1500 isadapted to "classic" positioning of the bolt 18. "modern" positioning may be referred to as a firstconfiguration ofthe position of the bolt 18, e.g. along the longitudinal direction of the face place when mounted in the door lock arrangement 1. Further, "classic" positioning may be referred to as a 22 second configuration of the position of the bolt 18, , e.g. along the longitudinal direction ofthe faceplace when mounted in the door lock arrangement 1. Generally, the bolt 18 is extractable andretractable relatively a faceplate 10 of the door lock arrangement 1, i.e. when the bolt assembly 1500is mounted in the door lock arrangement 1. When the door lock assembly 1 is mounted in a door,which is mounted in a suitable door frame, retraction, e.g. complete or almost complete retraction,of the bolt 18 allows the door to freely swing in and out ofthe door frame, e.g. without beingobstructed by the bolt 18. Further, extraction, e.g. complete or almost complete extraction, of thebolt 18 secures the door in the door frame by means of the bolt 18. This means that it is not possibleto open the door without operating a handle ofthe door, or a key for the door lock arrangement 1.

Furthermore, the bolt assembly 1500 comprises a bolt guiding member 1509, having a firstattachment portion 1502 for releasable attachment of the bolt 18 to the bolt guiding member 1509and being arranged to translationally guide the bolt 18 along a geometrical axis 63 that isperpendicular to a main plane 60 of the faceplate 10 for extraction and retraction of the bolt 18relatively the faceplate 10, when the bolt guiding member 1509 is mounted in the door lockarrangement 1. The first attachment portion 1502 may thus enable adaption of the bolt assembly to"classic" positioning.

Moreover, the bolt guiding member 1509 has a second attachment portion 1504 forreleasable attachment of the bolt 18 to the bolt guiding member 1509. The second attachmentportion 1504 is offset the first attachment portion 1502 along a longitudinal axis 62 of the faceplate10 when the bolt guiding member 1509 is mounted in the door lock arrangement 1. The secondattachment portion 1504 may thus enable adaption of the bolt assembly to "modern" positioning.

Releasable attachment of the bolt 18 may refer to that the bolt may be inserted into theattachment portion and temporarily fastened therein and to that the bolt may, e.g. at a later point intime, be released from the attachment portion, e.g. to be moved to the other attachment portion orreplaced with a further bolt, which may be different (for left/right hinged door) alternatively thesame or similar as the released bolt. ln this manner, the bolt assembly enables a change or a swap of a position of the bolt in thatthe position ofthe bolt may for example be chosen according to the "classic" or "modern"positioning by attaching the bolt in the first or second attachment portion, respectively. The bolt 18may be released and fastened by proper screwing at screws 1702, 1704 (see Figure 17c) which areaccessible, since the casing of the door lock arrangement 1 comprises suitable openíngs 1420, 1422.The screws may not need to be completely unscrewed to release the bolt 18.

Additionally, the bolt guiding member 1509 may guide the bolt 18 between an extractedposition and a retracted position, wherein the bolt 18 protrudes out of the faceplate 10 in the extracted position, and wherein the bolt 18 is retracted towards an interior of the casing 14 in the 23 retracted position.

According to some embodiments, the bolt assembly 1500 comprises the faceplate 10 and acover plate 1506. The cover plate 1506 and/or the faceplate 10 may be realized in according todifferent examples, some of which being illustrated hereín. ln these examples, the faceplate 10 has a recess 1508 that is adapted to accommodate thecover plate 1506. The cover plate 1506 is releasably mountable at the faceplate 10. The cover plate1506 comprises an opening 1507, which is adapted to allow the extraction and the retraction ofthebolt 18 when the bolt 18 is attached to the first attachment portion 1502 and when the cover plate1506 is mounted at the faceplate 10. The cover plate 1506 is adapted to cover the second attachment portion 1504 when the cover plate 1506 is mounted at the faceplate 10. ln one example of the cover plate 1506 and/or the faceplate 10 is illustrated in Figure 15athrough Figure 15c. ln this example, which is also illustrated in Figure 14a and Figure 14b, one andthe same cover plate 1506 may be used for both "classic" and "modern" positioning depending onhow the cover plate 1506 is mounted, i.e. in terms of orientation. E.g. when the cover plate 1506 ismounted with a first end 1401 towards a first end 1411 ofthe face plate, it may be that the boltassembly is adapted to "modern" positioning. Similarly, e.g. when the cover plate 1506 is mountedwith a second end 1402 towards the first end 1411 of the face plate, it may be that the bolt assemblyis adapted to "classic" positioning. The first and second ends 1401, 1402 ofthe cover plate 1506 arelocated in opposite ends of the cover plate, e.g. relatively a longitudinal direction 1505 thereof.

Furthermore, the cover plate 1506 is reversibly mountable at the faceplate 10. The opening1507 is offset along the longitudinal axis 62 of the faceplate relatively a center 1501 in thelongitudinal direction 1505 of the cover plate 1506 when the cover plate 1506 is mounted at thefaceplate 10. The center is thus located at a middle point ofthe cover plate 1506 when consideringdistance to distal ends in the longitudinal direction 1505 of the cover plate 1506. A length of theoffset is adapted to allow the bolt 18 to be alternatingly mounted at the first and second attachmentportions 1502, 1504 upon reversed re-mounting of the cover plate 1506.

"Reversibly mountable" may refer to that the orientation of the cover plate 1506 may beswitched, such as swapped, changed or the like. As described above, the cover plate 1506 may beoriented in two different ways, one for "classic" positioning and one for "modern" positioning.

As an example, the cover plate may thus be mountable in the faceplate 10 in a first modeand a second mode as illustrated in Figure 14a and Figure 14b, respectively.

The first mode may yield a first opening position of the opening 1507. The first opening position is located at a distance from the center 1501, still along the longitudinal axis ofthe 24 faceplate, thus also in the longitudinal direction 1505 ofthe cover plate 1506. The second mode mayyield a second opening position of the opening 1507. The second opening position is located at thedistance, i.e. the same distance, from the center 1501, again still along the longitudinal axis of thefaceplate, thus again also in the longitudinal direction of the cover plate 1506. The cover plate 1506may thus be reversíbly mountable to assume the first mode or the second mode, e.g. to switch fromthe first mode to the second mode or to switch from the second mode to the first mode.Furthermore, Figure 15c illustrates the first attachment portion 1502 and the secondattachment portion 1504. One or more of the first and second attachment portions 1502, 1504 maybe a hole, a cavity, a socket, an outlet or the like. Typically, one or more ofthe first and secondattachment portions 1502, 1504 have a bottom, but through-hole or the like is also conceivabledepending on use case. A cross-section ofthe first and/or second attachment portions 1502, 1504,taken perpendícularly to a longitudinal direction thereof, may be circular, rectangular, square,triangular, polygonal or the like. Inner walls of the first and second attachment portions 1502, 1504are typically smooth, such as even, flat or the like. ln some examples, the inner walls may bethreaded. ln general, the first and second attachment portions 1502, 1504 may be adapted to, orconfigured to, receive the bolt 18, in particular the portion 1710, such as a protrusion, ofthe bolt 18as shown in Figure 17d.The recess 1508, shown in Figure 15b, may be adapted to snugly fit, such as formfit with or the like, a shape ofthe cover plate 1506. As an example, the recess 1508 has a geometríc shape that is defined by the cover plate 1506.

As shown in Figure 15a to Figure 15c, the bolt assembly 1500 comprises the bolt guidingmember 1509. ln some examples, the bolt assembly 1500 further comprises an embodiment ofthefaceplate 10 and an embodiment of the cover plate 1506. Accordingly, the faceplate 10 and the cover plate 1506 are.

Figure 16 illustrates an exemplifying bolt assembly 1500 relatively a door lock arrangement 1in which the exemplifying bolt assembly 1500 is mountable. ln this Figure, two screw holes 1601,1602 and corresponding screw 1603, 1604 for mounting of the cover plate 1506 at the faceplate 10 are shown.

Figure 17a through Figure 17e include side views and a cross-sectional view of anexemplifying bolt assembly.Figure 17a shows the first and second attachment portions 1502, 1504 inside the guiding member 1509. Moreover, the bolt 18 is shown as mounted for "modern" positioning, i.e. mounted in the second attachment portion 1504.

Figure 17b shows that the first attachment portion 1502 may be vacant, in case the bolt 18 ismounted in the second attachment portion 1504.

Figure 17c illustrates two screws 1702, 1704 for securing the bolt 18. Normally, only onescrew is needed, since said only one screw may be used in either of two screw holes, illustrated inmore detail with reference to Figure 17e, in one or the other of the first and second attachmentportions 1502, 1504. ln this example, the bolt 18 is mounted at the second attachment portion 1504by means ofthe screw 1704.

Figure 17d illustrates a top view of the bolt guiding member 1509 and the bolt 18. A cross-sectional view across a plane A is illustrated in Figure 17e. ln Figure 173, it may be seen that a portionof the bolt 18 is adapted to be received by and inserted into the bolt guiding member 1509,preferably by a tight fit, snug fit or the like. The portion may be referred to as a protrusion 1710. At adistal end ofthe protrusion 1710 a hee|1712, or shoulder, is located in order to prevent the bolt 18from sliding out of the first or second attachment portion1502, 1504, should the screw 1702, 1704not be tightened sufficiently.

Figure 17e shows the aforementioned cross-sectional view in the plane A. The bolt guidingmember 1509 is provided with two screw holes 1706, 1708, one for each of the first and secondattachment portions 1502, 1504 as mentioned above. The two screw holes 1706, 1708 may have arespective threaded inner surface. The screw holes 1706, 1708 penetrate through the bolt guidingmember 1509 from an interior of the first and second attachment portions 1502, 1504 to a side surface 1720 ofthe bolt guiding member 1509. The side surface 1720 is shown in Figure 17c.

Figure 18a and Figure 18b illustrates an exemplifying cover plate 1506 and an exemplifyingfaceplate 10 of an exemplifying bolt assembly 1500. ln this example, the faceplate 10 is arranged to allow mounting of the cover plate 1506 at afirst location 1802 and a second location 1804, e.g. within the recess 1508. This may be achieved bythat a recess length 1806 of the recess 1508, e.g. in the longitudinal direction of the faceplate 10, isgreater than a cover plate length 1808 of the cover plate 1506. The first location 1802 and thesecond location 1804 may be given with reference to one of two distal ends 1811, 1812 of thefaceplate 10, e.g. distal in the longitudinal direction ofthe faceplate. Other ways of defining the firstand second location 1802, 1804 are also possible, e.g. in terms of distance from a distal end of therecess 1508. A difference between the recess length 1806 and the cover plate length 1808 is given bya difference in positions of the bolt 18 for "classic" and "modern" positioning, respectively. ln embodiments, including the recess 1508 and the cover plate 1506, it is preferred that a depth of the recess 1508 is equal to, or approximately equal to, a depth of the cover plate 1506. ln 26 this context, these depths are measured along the geometrical axis 63, e.g. when the cover plate1506 is mounted at the faceplate 10. The first location 1802 is offset the second location 1804 alongthe longitudinal axis 62 of the faceplate 10. As exemplified above, a distance between the first andsecond locations 1802, 1804 may be given by the difference in positions of the bolt 18 for "classic"and "modern" positioning.

As an example, the faceplate 10 may be provided with a first set of screw holes 1821, 1822and a second set of screw holes 1823, 1824. The first set of screw holes 1821, 1822 is offset thesecond set of screw holes 1823, 1824 along the longitudinal axis 62, e.g. according to the difference in positions ofthe bolt 18 for "classic" and "modern" positioning as mentioned above.

Figure 19a and Figure 19b are plan views illustrating another exemplifyíng bolt assembly. ln one example, while disregarding the dotted lines, there is provided a first faceplate 10aand a second faceplate 10b for each of the "classic" and "modern" positioning ofthe bolt 18. This isthus in contrast to the examples of Figure 16, Figure 18a and Figure 18b, where the same faceplate10 is used for both "classic" and "modern" positioning of the bolt 18. This kind of specially adaptedfaceplates 10a, 10b are known in the art. ln this example, the bolt guiding member 1509 having thefirst and second attachment portions 1502, 1504, alone provides for at least some ofthe advantagesmentioned herein.

However, in one example - now considering the dotted cover plates 1506a, 1506b in Figure19a and Figure 19b -it may be that one and the same faceplate 10 is used for door lockarrangements adapted to either "classic" and "modern" positioning ofthe bolt 18. Such faceplate 10may typically have a faceplate recess 1901 that fits closely to a peripheral contour ofthe cover plate1506a as well as a peripheral contour of the cover plate 1506b. The depths of the faceplate recess1901 is matched to thickness of the cover plate 1506a, 1506b. ln Figure 19a, a first cover plate 1506a has an opening 1507, whose position in thelongitudinal direction ofthe first cover plate 1506a is chosen such that the bolt 18 is extractable andretractable though the opening 1507 when the bolt 18 is mounted in the first bolt attachmentportion 1502. This means that the first cover plate 1506a is adapted to "classic" positioning ofthebolt 18. ln Figure 19b, a second cover plate 1506b has an opening 1507, whose position in thelongitudinal direction ofthe second cover plate 1506b is chosen such that the bolt 18 is extractableand retractable though the opening 1507 when the bolt 18 is mounted in the second bolt attachmentportion 1504. This means that the second cover plate 1506b is adapted to "modern" positioning ofthe bolt 18.

The cover plate 1506 is thus exemplified by the first and second cover plates 1506a, 1506b, 27 which may be considered to be different versions of the cover plate 1506, one version for "classic"and another version for "modern".

With reference to the embodiment indicated by the dashed lines in Figure 19a and Figure19b, the cover plate 1506, according to some embodiments, is non-reversibly mountable at thefaceplate 10. The opening 1507 is offset along the Iongitudínal axis 62 ofthe faceplate 10 relativelyan end 1902 of the faceplate 10, previously referred to as the distal end 1812. A length of the offsetis adapted to allow the bolt 18 to be mounted at the first or second attachment portions 1502, 1504 and also e.g. extractable and retractable through the opening 1507.

As described above, a purpose of the different embodiments of the cover plate 1506 is toprotect the one ofthe first and second attachment portions 1502, 1504 in which the bolt 18 is notinstalled, or mounted. Said one of the first and second attachment portions 1502, 1504 may hencebe protected from being contaminated with dirt, dust or debris of any kind that may obscure normaloperation of the door look assembly 1. Moreover, the door lock assembly 1 is protected, at least tosome extent, from being tampered with, e.g. thanks to that said one of the first and secondattachment portions 1502, 1504 is not accessible with a tool, such as a picklock or the like.

Figure 20a and Figure 20b are perspective views illustrating details of a still furtherexemplifying bolt assembly. With this embodiment, said one of the first and second attachmentportions 1502, 1504 is at least protected from dirty, but it may also, at least to some extent -thoughpossibly less than in the previously disclosed embodiments, protect against tampering or the like.

Hence, in some embodiments, the bolt assembly 1500 further comprises an attachmentportion cover 2002 adapted to be releasably mountable at the first and second attachment portion1502, 1504 alternatingly. As an example, the attachment portion cover 2002 is thus mounted in saidone of the first and second attachment portions 1502, 1504. ln these embodiments, two screws1702, 1704 may be required. ln some examples, the attachment portion cover 2002 may beintegrated with the bolt 18. ln case the bolt 18 is asymmetric with reference to the secondary plane61, see Figure 3, it may be that there is one bolt including attachment portion cover for the "classic"positioning and another bolt including attachment portion for the "modern" positioning. Since theattachment portion cover 2002 is integrated with the bolt 18 only one screw 1702, 1703 may berequired.

The attachment portion cover 2002 is further adapted to present a flat surface 2004 facingaway from the bolt guiding member 1509 when mounted in the first or second attachment portion1502, 1504. The flat surface 2004 may be aligned with the faceplate 10 when the bolt 18 is extracted,e.g. completely extracted.

Alternatively, with embodiments including the cover plate, the flat surface 2004 may be 28 aligned with a bolt guiding member surface 2010 ofthe bolt guiding member. The bolt guidingmember surface 2010 faces the face plate 10 when the bolt assembly 1500 is used, or mounted, together with a door lock arrangement 1.

As used herein, the term "bias", "biased", "biasing" or the like may refer to mechanícalbiasing by means of a spring, a plate spring or the like.

As used herein, the term "along an axis" may refer to parallelly with the axis and/orcoinciding with the axis.

Each embodiment, example or feature disclosed herein may, when physically possible, becombined with one or more other embodiments, examples, or features disclosed herein.

Even though embodiments ofthe various aspects have been described above, many differentalterations, modifications and the like thereof will become apparent for those skilled in the art. The described embodiments are therefore not intended to limit the scope ofthe present disclosure.

Claims

1. A bolt assembly (1500) adapted to attach a bolt (18) of a door lock arrangement (1), the bolt(18) being extractable and retractable relatively a faceplate (10) of the door lock arrangement (1),wherein the bolt assembly (1500) comprises: a bolt guiding member (1509), having a first attachment portion (1502) for releasableattachment ofthe bolt (18) to the bolt guiding member (1509) and being arranged to translatíonallyguide the bolt (18) along a geometrical axis (63) that is perpendicular to a main plane (60) of thefaceplate (10) for extraction and retraction of the bolt (18) relatively the faceplate (10) when the boltguiding member (1509) is mounted in the door lock arrangement (1), wherein the bolt assembly(1500) is characterized by that the bolt guiding member (1509) has a second attachment portion (1504) for releasableattachment ofthe bolt (18) to the bolt guiding member (1509), wherein the second attachmentportion (1504) is offset the first attachment portion (1502) along a longitudinal axis (62) of the faceplate (10) when the bolt guiding member (1509) is mounted in the door lock arrangement (1).

2. The bolt assembly (1500) according to claim 1, wherein the bolt assembly (1500) comprises the faceplate (10) and a cover plate (1506), wherein the faceplate (10) has a recess (1508) adapted to accommodate the cover plate (1506), wherein the cover plate (1506) is releasably mountable at the faceplate (10), wherein the coverplate (1506) comprises an opening (1507), which is adapted to allow the extraction and theretraction of the bolt (18) when the bolt (18) is attached to the first attachment portion (1502) andwhen the cover plate (1506) is mounted at the faceplate (10), and wherein the cover plate (1506) isadapted to cover the second attachment portion (1504) when the cover plate (1506) is mounted at the faceplate (10).

3. The bolt assembly (1500) according to claim 2, wherein the cover plate (1506) is reversiblymountable at the faceplate (10), wherein the opening (1507) is offset along the longitudinal axis (62)of the faceplate relatively a center (1501) in a longitudinal direction (1505) of the cover plate (1506)when the cover plate (1506) is mounted at the faceplate (10), wherein a length of the offset isadapted to allow the bolt (18) to be alternatingly mounted at the first and second attachment portions (1502, 1504) upon reversed re-mounting of the cover plate (1506).

4. The bolt assembly (1500) according to any one of claims 2-3, wherein the faceplate (10) isarranged to allow mounting of the cover plate (1506) at a first location (1802) and a second location (1804), wherein the first location (1802) is offset the second location (1804) along the longitudinal axis (62) of the faceplate (10).

5. The bolt assembly (1500) according to any one of claims 2-4, wherein the cover plate (1506) isnon-reversibly mountable at the faceplate (10), wherein the opening (1507) is offset along thelongítudínal axis (62) of the faceplate relatively an end (1902) ofthe faceplate (10), wherein a lengthof the offset is adapted to allow the bolt (18) to be mounted at the first or second attachment portions (1502, 1504).

6. The bolt assembly (1500) according to any one of claims 1-5, wherein the bolt assembly (1500)further comprises: an attachment portion cover (2002) adapted to be releasably mountable at the first and secondattachment portion (1502, 1504) alternatingly, wherein the attachment portion cover (2002) isfurther adapted to present a flat surface (2004) facing away from the bolt guiding member (1509) when mounted in the first or second attachment portion (1502, 1504).

7. A door lock arrangement (1) for mounting in a door leaf (2), wherein the door lock arrangement (1) comprises a bolt assembly (1500) according to any one of claims 1-6.