SE1851415A1

SE1851415A1 - Door lock

Info

Publication number: SE1851415A1
Application number: SE1851415A
Authority: SE
Inventors: Juha Raatikainen
Original assignee: Abloy Oy
Priority date: 2017-11-15
Filing date: 2018-11-14
Publication date: 2019-05-16
Also published as: FI127562B; SE542963C2; FI20176021A1; TW201923206A; CN109779397B; CN109779397A; DE102018128058A1

Abstract

13 (Sï) Abstract A door iock (i) according to the invention comprisesbetvtreen the toiiower (4) and the bott (3) a separatedeadboit piece (6), which is arranged to move both inreiation to the hoit (3) ario ih reiation to the foiiower (4). Thebott (3) has an obiique surface (12) and the deacihoit piece(6) has a correeponding obiique surface, which guide thedeadhoit piece to rotate away from the open position of thecieaoboit piece (6), when an externa! force is directeo to thehoit(3). (Fig. 1)

Description

Soor iock Field ot the invention The invention retates to door tocks. tn partioutar, the invention reiates to the deadbctt arrangements ot door iocks.

Prior art in door tocks, it is known to use a deadbott arrangement to keep the bott extended,more precisety, to keep the end ot the bott extended, wherein the bott is not abte toshitt inside the door took, ii there ts an attempt to push the bott from the end of thebott towards the door took. The deadbott ot a door look can be arranged to activate atthat time, when the door is turned shut, wherein the striker ptate in the framernomentartty guides the bott towards the door took. Activation ot the deadbott mayatso occur by means ot a separate deadboit tever or button connected to the doortook, in addition to which normat buttons tor opening and otostng the door can be connected to the door took.

An attempt can be made to maniputate the deadbott open by a hit to the door tookor the bott in order that the imputse caused by the hit wouid shift the parts of thedeadboit arrangement inside the door took such that they woutd shift away trorn thedeadbott position. in this case, the bott ooutd be pushed from the end ot the bott inside the door took, and the door coutd be opened without authorization.

Brief description ot the invention "the object ot the invention is to provide a soiution to the probiern described above.The object is achieved in the manner described in the independent otairn. The dependent ctaims describe various embodirnents ot the invention.

A door lock i according to the invention comprises a took body 2, a bott 3 and a toiiower 4. The tottower 4 is rotatabiy arranged in reiation to the handte spindie axis 5 'iQ 2G and spring-toaded towards the first position, in which the end 3A of the bott 3,associated with it, is extended from the tock body 2. The foitower 4 is further arrangedto putt the end 3A of the boit inside the lock body 2, as the foitower is rotated due to arotative force directed onto the handte spindte axis 5. This rotative force for openingthe door comes from a handte outside the door took, which is connected to a spindtedisposed onto the handie spindte axis. The handte and spinctte are thus instatted intothe door took (onto the handie spindte axis) for the purpose of its norntai use. in ptace of the handie may atso be a rotary knob.

Between the fotiower 4 and the bott 3 is a separate deadbott piece 6, which isarranged to rnove both in reiation to the boit 3 and in retation to the foitower 4. Thefottower has a guide surface 7, and the deadboit piece has a corresponding guide surface 8, which is against the guide surface 7 of the foitower.

The bott 3 atso has a rotation surface 9, and the deadboit piece 6 has acorresponding rotation surface 10, Between the rotation surface 9 and thecorresponding rotation surface 19 is a ctearance tt, as the end 3A of the bott isextended frorn the took body 2 and the fotiower 4 is in the first position. The deadbottpiece 6 is arranged to shift towards the rotation surface 9 of the bott 3, as the fotiower4 ts rotated due to a rotative force dtrected onto the handte spindie axis 5. in thiscase, the clearance tt is removed, and the rotation surface 9 is against thecorresponding rotation surface 19, and further, the deadbott piece 6 rotates into theopen position. As the fottower is further rotated, the deadbott piece 6 being in theopen position, the deadboit piece 6 is arranged to shift iinearty paraitei with theiongitudinat axis of the bott 3, at the same time shifting the end 3A of the bott towardsthe tock body. Thus, the end of the bott shifts inside the iock body.

The bott 3 further cornprises an obtique surface 12, and the deadbott piece 6cornprises a corresponding obiique surface 13. The obiique surface 12 is arranged toguide the external force directed to the bott 3 onto the corresponding obtique surface13 and, hence, via the deadboit piece 6, onto the iaterat structure 2A of the took body2A. in addition, the took body 2 comprises a support surface 14, and the deadbott piece 6 a corresponding support surface 16. The corresponding support surface 15 is 2G St) arranged to shift against the support surface 14 due to an external force dtrected tothe bolt 3, thus preventing the end 3A of the bott from shifting inside the took body 2.

List of figuresin the following, the invention is described in more detaii with reference to theaccornpanying figures, in which Figs. 'i - 3 show an exampie of an embodiment according to the invention,the boit extended in a normal situation, Figs. 4 - 8 show the example of Figs. 'i - 3, the bott extended under theinfluence of an externai force directed thereto, Figs, 7-9 show the example of Figs. t - 3, when the rotation of thefoliower is initiated for shifting the end of the boit inside the iockbody, Figs. 10-11 show the exambie of Figs. 'i - 3, the end of the bott beingshifted inside the lock body, Fig. 12 shows an example of a boit, which is used in an embodinientaccording to the invention, Fig. 13 shows another exarnpie of a bott, which is used in anenibodiment according to the invention, and Fig. 14 shows en example of a deadbolt piece, which is used in anembodirnent according to the invention.

Bescriptton of the invention Figs. 'i - 3 show an example of an ernbodiment of a door lock according to theinvention, in which the bott is nornnaiiy extended, ie. more oreciseiy, the end 3A ofthe bolt is extended from the lock body 2 of the door lock. A door iock i according tothe invention comprises a iock body 2, a bott 3 and a foltower 4. The follower 4 isrotatabiy arranged in retation to the handle soindie axis 5 and soring-toaded towardsthe first position, in which the end 3A of the bott 3, associated with it, is extended fromthe took body 2, The fotiower 4 is fudher arranged to bull the end 3A of the bolt inside '15 2G the iock body 2, as the foiiower is rotated due to a rotative force directed onto thehandie spindle axis 5. This rotative force for opening the door comes from a handieoutside the door took, which is connected to a spindie disposed onto the handiespindle axis. in normat use, by rotating the handie, the bott 3 is thus shifted inside theiock body in order that the end of the bott shifts cornptetety or aimost compteteiy inside took body.

The door took t, more precisety its iook body 2, has a point, which is catled thehandte spindte axis 5. The foitower 4 and the drivers 28 piaced inside the lock bodyare disposed in sucoession onto the handie spindie axis, paraltei with the axis itne.The drivers 28, which can be catied the internai driver and the externai driver, are onboth sides of the foiiovver 4, The drivers and the foiiower are arranged to rotate inreiation to the handie spindte axis 5. Both drivers have a spindie hoie 28A for thespindle. The spindie instaiied into the spindte hoie rotates the driver, when the handie connected to the spindte is rotated.

The driver 28 is to be connected to the foiiower 4 in order that the force rotating thehandte can be guided to the foiicwer, wherein the foiiower rotates and, at the sametime, shifts the bott 3 into the took body in order that the door can be opened.Between the driver and the fciiower is used a iatch 26 for transmitting force. tn thefigures of this description, the iatch 26 is shown by way of exarnpie, using just acurved tine. in the exampie of the figures, the foiiower has a rotationat axis point(black dot) of the iatch, in retation to which the iatch can be rotated into forcetransmission connection or away from force transmission connection. in forcetransmission connection, the other end of the iatch is against the force transmissionprotection 27 of the driver. in the exampie of the figures, the iatch 26 is in forcetransmission connection. in this connection, the handie spindie axis 5, the driver 28,the spindie hole 28A, and the iatch 26, which are per se known parts or points, areshown to iiiustrate the normat use of the door tock, in which the door is opened byrotating the handie. if the iatch sotution 6 is guided (for exampie, eiectronicaiiy ormechanicaiiy) into the force transmission position, the rotation force is transniitted viathe iatch from the driver 28 to the fotiower 4, which further shifts the bott 3 inside theiock body 2. in this case, the end 3A of the bott shifts compieteiy or atmost compietety 16 inside the took body. if the iatch soiution 6 is not guided into the force transmission position, a rotation force directed to the handte rotates, via the spindie, oniy the driver.

Between the fotiower 4 and the bott 3 is a separate deadboit piece 6, which isarrahged to move both in reiation to the bolt 3 and in reiation to the foiiower 4. Thefoiiower has a guide surface 7, and the deadboit piece has a ccrresponding guide surface 6, which is against the guide surface 7 of the fciiower.

The boit 3 has a rotation surface 9, and the deadboit piece 6 has a correspondingrotation surface 16. Between the rotation surface 9 and the corresponding rotationsurface 16 is a ciearance 11, as the end 6A of the bott is extended from the iock body2 and the foiiower 4 is in the first position. The deadbott piece 6 is arranged to shifttowards the rotation surface 9 of the bott 3, as the foitower 4 is rotated due to arotative force directed onto the handie spindie axis 5. in this case, the ciearance 11 isremoved, and the rotation surface 9 is against the corresponding rotation surface 10,and, further, the deadboit piece 6 rotates into the open position. As the fotiower isfurther rotated, the deadboit piece 6 being in the open position, the deadboit piece 6is arranged to shift iineariy paraiiet with the iongitudinai axis 5A of the bcit 6, at thesame time shifting the end 3A of the boit towards the iock body. Thus, the end of thebott shifts inside the Iock body. The door can be opened normaiiy by rotating the handie.

Figs. 7 - 9 show a situation, in which the fotiower 4 is rotated just enough that thedeadboit piece 6 has shifted into the open position. Rotating the fotiower has causedthe disappearance of the ciearance 11 from between the rotation surface 9 and thecorrespondihg rotation surface 10, wherein these surfaces are against each otherforrning a support point area for rotating the deadboit piece into the open position. inthis case, the obiioue surface 12 of the bott and the corresponding obiique surface 13of the deadbott piece can aiso guide the rotation the deadboit piece into the openposition. it may aiso be noted that, as the door is opened normaiiy, the supportsurface 14 of the tock body 2 does not prevent the deadbott piece 6 from rotating intothe open position, which is thus visibie in Figs. '7 - 9. in Figs. 2, 3, 5, 6, 8, 9 and 11,the fotiower is not shown in order that the deadboit piece 6 and the rear end 66 of the bott wouid be more visibte. 1G 2G 3G thus, the bott 3 further ccntprises an obtidue surface 12, and the deadbott piece 6oornprises a correspondtng oblidue surface 13. 'the obtique surface 12 is arranged toguide the external force directed to the bott 3 onto the oorresponding obtigue surface13, and, hence, via the deadbott piece 6, onto the iaterai structure 2A of the tockbody. in addition, the took body 2 ccmprises a support surface 14, and the deadbottpiece 6 a corresponding support surface 15. The oorresponding support surface 15 tsarranged to shift against the support surface 14 due to an externa! force direoted tothe bott 3, thus preventing the end 3A of the bott frorn shifting inside the lock body 2.

The deadbott piece 6 is thus arranged to rotate, due to an externai force directedto the bott 3, away frorn the open position of the deadbott piece 6. An externa! force,such as a hit direoted to the bott, pushes the bott 3 inside the tock body, wherein aportion of the force of the hit is guided onto the tateral structure 2A of the took body asguided by the obiidue surface 12 of the bott and the corresponding obtidue surface 13of the deadboit piece. At the sante tinte, a portion of the force of the hit pushes thedeadboit piece against the support surface in the taterai structure of the look body.Figs. 4 - 8 show such a situation, in which an externat force has been directed to thebott. The exterhat force can thus be, for example, a hit directed to the end 3A of thebott, a hit direoted to the face ptate 2G of the door took and transnftitted to the bott 3,or a wire or stide pushed through the bott opening of the face ptate, which, at thesame time, pushes the bott inside the tock body. tt can thus be stated that, in thisdescription, by an externat force directed to the bott is meant a force, which attemptsto shift the bott inside the took body due to a force directed to the bott or the lock body2 or its face piate 2G, and thus, not a rotative force to be transrnitted via the fottower,which is normatiy used for opening the door. "the face piate can be considered to be a part of the took body. it can atso be stated that, in a soiution according to the invention, the externaiforce, which guides the bott inside the took body itnearty parattet with the tongitudinaiaxis 5A of the bott, is slightiy rotated via the deadbott piece towards the side of thetook body, i.e. towards the taterai structure of the took body. in addition, it should benfientioned that the ctearance 30 between the support surface 14 of the look body 2 and the oorresponding support surface 15 of the deadbott piece 6 is removed due to an externai force, but the ciearance 11 between the rotation surface 9 of the boit 3and the corresponding rotation surface ti) of the deadbott piece 6 remains, wherein the externa! force is not transmitted from the deadbott piece 6 to the fotlower 4. tn an embodiment according to the exampie of Figs. 1 - 11, the bott 3 comprises apin 16, the outer surface of which forms said rotation surface 6, and the deadbottpiece 6 comprises a groove 17, which (ie. the edge of the groove) forms saidoorrespohdihg rotation surface 16. Fig. 12 shows another ernbodiment 31 of the bott,in which the bott comprises tvvo pins 18A, 186, the outer surfaces of which form saidrotation surface 9, and the deadbott piece 6 comprises a groove 137, which forms saidcorresponding rotation surface 10. Fig. 13 shows yet another embodiment 311 of thebott, in which the bott 3 cornprises two openings 19A, 196, the edge surface of whichforms said rotation surface 9, and the deadbott piece 6 comprises two pins 20A, 2GB, which form said corresponding rotation surface 10, tt can be noted that the bolt and deadbott piece operate during an externat force,such as a hit, such that both the bott and the deadbott piece shift rearwards, untii thebott hits with its corresponding support surface 15 against the support surface 14 ofthe side of the took body, Betiwreen the rotation surface 9 of the bott and thecorresponding rotation surface 16 of the deadbott piece remains a ctearance, whichmeans that the external force directed to the boit does not rotate the deadbott pieceinto the open position (at the same time guiding the foitower 4 to rotate), instead theexternai force is guided to rotate the deadbott piece away from the open position of the deadbott piece. in the embodiment of Figs, 1 - 9, the deadbott piece 6 comprises a guide pin 21,the curved surface of which forms said oorresponding guide surface 8, and thefotiower 4 comprises a hoie 22, the edge surface of which forms said guide surface 7.Fig. 14 shows another embodiment of the deadbott piece 6, in which the deadbottpiece 6 comprises a hote 23, the edge surface of which forms said correspondingguide surface 6, and the foitower 4 comprises a guide pin 24, the curved edge ofwhich forms said guide surface 7. There is no ctearance between the guide surface 7and the corresponding guide surface 8, or it is srnati so that, in terms of function, it has no reai significance, wherein it can be said that the guide surface and the 1G 2G corresponding guide surface are against each other. in this description, by theexpression ”against each other” is thus meant that there may be a smati ciearance between the guide surface 7 and the oorresponding guide surface 8.

The rear end BB of the bott 3 may comprise one or two proieotions BC paratiei withthe iongitudinat axis of the bott, to which projections said rotation surface 9 tsconnected, and the deadbott piece 6 is ptaced betvveen the rotation surface 9 and theobtique surface 12 of the bott. The oorresponding guide surface 8 and thecorresponding rotation surface 10 may atso be plaoed in the rear part 68 of thedeadbott piece 6, and the corresponding obtique surface 13 can be ptaced in the frontpart 6A of the deadboit piece 6. The bott 3, 31, 31 t may atso have a protective plateprotection 32, which is used to attempt to prevent a wire or stide from being pushed into the lock body via the bott opening of the face ptate 2G.

The corresponding obtique surface 13 of the deadbolt piece b may furthercomprise a stop protection 6G, and the bott 3 may comprise a stop surface 3D. Thestop protection and the stop surface are opposite each other, when the deadbottpiece 6 is being rotated into the open position. Fig. 14 shows the stop protection 6G.From Fig. 14, it is atso clearty seen that the corresponding guide surface 13 may aisohave a bend point 130, which promotes the rotation of the deadboit piece eithertowards the iaterat structure 2A of the took body or towards the open position of thedeadbott piece. tt is also practicat for the deadbott piece to have a surface 6D, which,due to an externa! force directed to the bott, pressas against the iaterat structure 2Aof the took body.

The iaterat structure 2A of the took body may comprise an inwardty-directedprotection 25 in the tock body, the edge of which protection forms said supportsurface 14. in the embodiment of Figs. t - tt, the fottower 4 is spring-ioaded towardsthe first position by a spring 25, which is directty connected to the fottower. Near the obtigue suntace 12 of the bott may atso be a reduction 29 to save on rnateriat.

The took body may have, for exampte, a microswitch, with which the position of thefotiower 4 can be rnonitored. The connection between the microswitch and the fottower can be made such that an externa! force, such as a hit to the bott or the took 2G body, is not transrnitted via the microswitch to the follower in order that it would rotate.

The invention etfeotively prevents the influence of an external force direoted to theholt or the look body from being transrnitted to the follower 4 in order that the followerwould rotate and, at the same time, would release the deadbolt hy rotating thedeadbolt piece 6 into its open position. A solution according to the inventionfuithermore guides the external force such that the deadbolt piece remains better/more firrnly in the looking position nor is it able to rotate into the open position. lt is clear that the door look also cornprises other parts than just the above said.Nonetheless, these are not shown in the figures for the sake of olarity, wherein theinventlon and its functionality can be olearly presented, For example, from the lookbody 2 is shown only a portion, wherein it is seen the above-said parts placed into thelock body. The skllled person in the art knows that, in Fig. i, a part oorresponding tothe visible part of the look body 2 would obsoure, from the viewing direction of Fig. 'l,the parts plaoed into the look body. Also the look cylinder and/or the electronic look arrangemerit are not seen in the figures.

A door look according to the invention can be implemented in various manners, asoan be ohserved trorn the examples described above. The invention is thus notlimited to only the examples presented above, rather lt may be implemented in various manners within the scope of the independent olairn.

Claims

1. G 2G 1G Ctairne t. A door took (t), oomprising a took body (2), a bott (3) and a foitower (4), whichtottower (4) is rotatabty arranged in relation to the handte spindie axis (5) and spring-toaded towards the first position, in which the end (3A) of the bott (3), associated withit, is extended from the iock body (2), and which fottower (4) ts further arranged to puitthe end (3A) of the bott inside the took body (2), as the foitower is rotated due to arotative force direoted onto the handte spindte axis (5), oharacterized in that betweenthe foiiowertoitower (4) and the bott (3) ts a separate deadbott piece (6), which isarranged to move both in reiation to the bott (3) and in retation to the foitowerfottower(4), which fottowerfottower has a guide surface (7), and the deadboit piece has acorresponding guide surface (8), which is against the guide surface (7) of thefoitowerfoitower, and the bott (3) has a rotation surface (9) and the deadtoott piece (6) has acorresponding rotation surface (16), between the rotation surface (9) and thecorresponding rotation surface (10) is a ctearance (t t), as the end (3A) of the bott isextended trorn the took body (2) and the foitowerfotiower (4) is in the first position, andwhich deadbott piece (6) is arranged to shift towards the rotation surface (9) of thebott (3), as the foitower (4) is rotated due to a rotative force direoted onto the handlespindte axis (5), wherein the ctearance (t t) is removed, and the rotation surface (9) isagainst the oorresponding rotation surface (10), and the deadbott piece (6) rotatesinto the open position, and, as the foitower is further rotated, the deadboit piece (6) being in the openposition, the deadbott piece (6) is arranged to shift iineariy parattei with theiongitudinat axis of the bott (3), at the same time shifting the end (3A) of the botttowards the took body, and which bott (3) further contprises an obiidue surface (12), and the deadbottpiece (6) comprises a corresponding obtique surface (13), which obtioue surface (12)is arranged to guide the externa! force directed to the bott (3) onto the oorrespondingobtioue surface (13), and, hence, via the deadbott piece (6), onto the taterai structure(ZA) of the iock body, 11 and which iock body (2) cornprises a support surface (14), and the deadbott piece(6) a oorresponding support surface (15), which corresponding support surface (15) isarranged to shift against the support surface (14) due to an externai force direoted tothe bott (3), thus preventing the end (3A) of the bott from shifting inside the took body(2)-

2. A door took (1) according to ciaim 1, oharaoterized in that the deadbott piece(6) is arranged to rotate due to an externa! force directed to the bott (3), away fromthe open position of the deadboit piece (6).

3. A door took (1) according to oiaim 2, oharaoterized in that the bott (3) comprisesa pin (16), the outer surface of which forms said rotation surface (9), and the deadboitpiece (6) comprises a groove (17), which forms said corresponding rotation surface(10).

4. A door lock (1) according to ciaim 2, oharaoterized in that the bott (3) cornprisestwfo pins (18A, 188), the outer surfaces of which form said rotation surface (9), andthe deadboit piece (6) comprises a groove (117), which forms said correspondingrotation surface (td).

5. A door took (1) according to ciaim 2, charaoterized in that the bott (3) comprisestwo openings (19A, 198), the edge surface of which forms said rotation surface (9),and the deadboit piece (6) comprises two pins (ZÜA, 2GB), which form saidcorresponding rotation surface (19).

6. A door tock (1) according to any one of otairns 3 - 5, oharacterized in that thedeadbolt piece (ö) comprises a guide pin (21), the curved surface of which forms saidcorresponding guide surface (8), and the foiiower (4) cornprises a hoie (22), the edgesurface of which forms said guide surface (T).

7. A door took (1) according to any one of ctaims 3 - 5, characterized in that thedeadbott piece (6) cornprises a hoie (23), the edge surface of which forms saidcorresponding guide surface (8), and the fotiower (4) comprises a guide pin (24), thecurved edge of which forms said guide surface (7).

8. A door iock (1) according to any one of ciaims o - 7, characterized in that therear end (38) of the bott (3) oomprises one or two projections (BC) paratiet with the iongitudinat axis of the bott, to which projections said rotation surface (ä) is fi) 12 connected, and the deadboit piece (6) is piaced between the rotation surface (9) andthe obiique surface (12) of the bott.

9. A door iock (t) according to any one of ctaints 6 - 8, characterized in that thecorresponding guide surface (8) and the ccrresponding rotation surface (tO) areptaced into the rear part (SB) of the deadhoit piece (6), and the corresponding obiiquesurface (t 3) is ptaced into the front part (6A) of the deadbott piece (6). tt).

10. A door iock (t) according to ciaim 9, characterized in that the correspondingobiigue surface (13) of the deadbctt piece (6) comprises a stop protection (GC), andthe bott (3) cornprises a stop surface (SD), which stop protection and stop surface areopposite each other, the deadhoit piece (o) being rotated into the open position.

11. A door took (t) according to any one of ctaims 6 - 10, characterized in that theiaterai structure (ZA) of the iock body corrtprises an inwardiy-directed protection (2Û)in the iock body, the edge of which projection forms said support surface (14).

12. A door took (t) according to any one of ciairns 6 - fi, characterized in that thefotiower (4) is spring-ioaded towards the first position by a spring (25), which is directiy connected to the foiiower.