DK162356B

DK162356B - Arrangement and key for a cylinder lock

Info

Publication number: DK162356B
Application number: DK410786A
Authority: DK
Inventors: Frank Muus
Original assignee: Trioving As
Priority date: 1985-08-30
Filing date: 1986-08-28
Publication date: 1991-10-14
Also published as: DK410786A; NO157266B; NO853429L; DK162356C; SE8603631D0; NO157266C; SE8603631L; DK410786D0

Description

iin

DK 162356 BDK 162356 B

Opfindelsen angår en anordning ved en cylinderlås omfattende en indre cylinder, der er drejelig i en ydre cylinder, boringer i de nævnte cylindre til optagelse af spærrestifter, hvilke spærrestifter kan bevæges imellem stillinger, hvori de til-5 lader henholdsvis forhindrer en indbyrdes drejning af cylindrene ved hjælp af en flad nøgle, der kan indføres i en spalte i den indre cylinder, og som er forsynet med nøgleskær på mindst en kantside, hvor den ydre cylinder er forsynet med en eller flere udsparinger, og hvor den indre cylinder er forsy-10 net med et antal spor, som udgår fra den nævnte spalte for nøglen, hvilke spor optager spærreorganer, som er bevægelige imellem stillinger, hvori de bringer et eller flere spærreelementer til indgreb med henholdsvis ud af indgreb med de nævnte udsparinger i den ydre cylinder, for spærring henholdsvis fri-15 gørelse af en indbyrdes drejelighed imellem cylindrene ved hjælp af nøgleskær på mindst en af nøglens flade sider.BACKGROUND OF THE INVENTION 1. Field of the Invention The invention relates to a device with a cylinder lock comprising an inner cylinder rotatable in an outer cylinder, bores in said cylinders for receiving locking pins, which locking pins can be moved between positions in which they allow and prevent, respectively, rotation of the cylinders. by means of a flat key which can be inserted into a slot in the inner cylinder and provided with key cuts on at least one edge side, where the outer cylinder is provided with one or more recesses and the inner cylinder is provided. nets having a plurality of grooves starting from said key slot, which grooves locking means movable between positions in which they engage one or more locking elements, respectively, out of engagement with said recesses in the outer cylinder, for blocking or releasing, respectively, rotation between the cylinders by means of key cuts on at least one of the flat sides of the key .

Der kendes forskellige cylinderlåse eksempelvis fra Yales grundliggende patenter i slutningen af forrige århundrede, og som 20 stadig er i brug i de fleste erhvervsejendomme.Various cylinder locks are known, for example, from Yale's basic patents at the end of the last century, and 20 are still in use in most commercial properties.

I den seneste tid er der blevet udviklet flere dirkemetoder, hvorved man ved hjælp af forskellige værktøjer vil kunne manipulere med spærrestifterne og få låsen op. Man har forsøgt at 25 gøre låsene mere dirkesikre på forskellige måder, eksempelvis ved at anvende mindre stiftklaring, spindelformede stifter samt en kombination af en kort stift som den inderste, og en lang stift som den næstinderste. Sådanne dirkesikre cylinderlåse er imidlertid væsentligt dyrere end konventionelle cylin-30 derlåse.Recently, several directing methods have been developed, enabling various tools to manipulate the locking pins and unlock them. Attempts have been made to make the locks more direct-proof in various ways, for example by using less pin clearance, spindle-shaped pins and a combination of a short pin as the innermost and a long pin as the innermost. However, such direct-lock cylinder locks are substantially more expensive than conventional cylinder locks.

Ved en såkaldt systemlåsning i en bygning kan man have konventionelle cylinderlåse i de fleste døre og dirkesikre cylinderlåse i enkelte specielt følsomme døre. Som følge af at man 35 sædvanligvis ønsker en begrænset adgang til de specielt følsomme døre, må nøglerne til de øvrige døre ikke kunne benyttes i de følsomme døre, medens nøglerne til de følsomme døre gerne 2With a so-called system lock in a building, one can have conventional cylinder locks in most doors and direct-lock cylinder locks in some particularly sensitive doors. Due to the fact that one usually wants limited access to the especially sensitive doors, the keys to the other doors must not be able to be used in the sensitive doors, while the keys to the sensitive doors like 2

DK 162356BDK 162356B

skal kunne benyttes i samtlige døre i bygningen. Dette opnås ved en variation af profilen af de langsgående riller i nøglerne og ved, at de mindre følsomme døres låsecylindre kan åbnes med to eller flere forskellige nøglekombinationer. Sådanne 5 systemer er dyre og desuden uden de mange kombinationsmuligheder, som man kunne ønske sig.must be applicable to all doors in the building. This is achieved by varying the profile of the longitudinal grooves in the keys and by allowing the locking cylinders of the less sensitive doors to be opened with two or more different key combinations. Such 5 systems are expensive and, moreover, without the many combination options you could wish for.

En dirkesikkerker lås af den indledningsvis nævnte art kendes f.eks. fra norsk patentskrift nr. 151.674. Her udgøres spærre-10 organerne af hjælpestifter, som ligger parallelt med eller danner en lille vinkel med cylinderens konventionelle stifter. Hjælpestifterne samvirker med en langsgående spærrebom, som i låsens låste stilling er fjederpåvirket til anlæg i en udsparing i den ydre cylinder. Hjælpestifterne har et antal ind-15 snævringer i længderetningen, hvilke indsnævringer skal passe sammen med en tilsvarende profil på spærrebommen, hvis låsen skal kunne åbnes. Både hjælpestifterne og spærrebommen får derved en forholdvis kompliceret form, og fremstillingsomkostningerne bliver tilsvarende høje. Den omstændighed, at spærre-20 bommen af fjedre presses til indgreb med fremspring i den ydre cylinder i låsens stilling, medfører på den anden side, at spærrebommen må presses ud af udsparingen mod fjederens virkning ved hjælp af kilekræfter, som opstår ved drejning af den indre cylinder, når låsen skal åbnes. Derved må der stilles 25 særlige krav til geometri, produktionstolerancer og overflade-finish for at opnå en tilstrækkelig driftssikkerhed, hvilket også øger fremstillingsomkostningerne.A wiretap lock of the type mentioned above is known e.g. from Norwegian Patent Publication No. 151,674. Here, the locking means are constituted by auxiliary pins which lie parallel to or form a small angle with the conventional pins of the cylinder. The auxiliary pins cooperate with a longitudinal locking bar, which in the locked position of the lock is spring-loaded for installation in a recess in the outer cylinder. The auxiliary pins have a number of 15 longitudinal narrowing rings which must fit together with a corresponding profile on the locking bar if the lock is to be opened. In this way, both the auxiliary pins and the barrier boom take on a relatively complicated shape and the manufacturing costs become correspondingly high. On the other hand, the fact that the locking boom of springs is pressed into engagement with projections in the outer cylinder in the position of the lock, means that the locking boom must be pressed out of the recess against the action of the spring by means of wedge forces which arise from turning it. inner cylinder when the lock is to be opened. Thereby, 25 special requirements for geometry, production tolerances and surface finishes have to be set in order to obtain sufficient reliability, which also increases the manufacturing costs.

For at bevæge hjælpestifterne i denne kendte lås må nøglebla-30 det nedadtil være forsynet med et udragende sideparti, som på sin side har kodeudspar i nger for hjælpestifterne. Selv om disse kodeudsparinger har en halvkonisk form, vil der under indføring af nøglen i låsen opstå store smigvirkninger, når hjælpestifterne bevæges fra den ene udsparing til den næste.In order to move the auxiliary pins in this known lock, the key blade downwardly must be provided with a protruding side portion, which in turn has code recesses in the nodes for the auxiliary pins. Although these code recesses have a semi-conical shape, during the insertion of the key in the lock, great flattering effects will occur as the auxiliary pins are moved from one recess to the next.

35 Dette giver anledning til stor friktion og slitage.35 This causes great friction and wear.

Også fra tysk fremlæggelsesskrift nr. 30 14 183 kendes en cylinderlås af den indledningsvis nævnte art med hjælpestifterAlso from German Patent Specification No. 30 14 183, a cylinder lock of the kind mentioned above is known with auxiliary pins

DK 162356 BDK 162356 B

3 af forholdsvis kompliceret form. Disse stifter danner en lille vinkel med låsens ordinære stifter, og må bevæges af udragende sidepartier på nøglen. Hjælpestifterne samvirker med en spærrebom, som kan være radiært eller aksialt forskydelig for frigø-5 relse af låsen. Ulemperne ved denne kendte konstruktion er i hovedsagen de samme som i forbindelse med norsk patentskrift nr. 151.674. I udførelsen med aksialt forskydelig spærrebom bliver den ydre cylinder desuden mere kompliceret, idet denne må forsynes med rundtgående spor for spærrebommens knaster.3 of relatively complicated form. These pins form a small angle with the ordinary pins of the lock, and must be moved by protruding side portions of the key. The auxiliary pins cooperate with a barrier which may be radially or axially displaceable to release the lock. The disadvantages of this known construction are essentially the same as in the case of Norwegian Patent No. 151,674. In addition, in the embodiment with axially displaceable barrier boom, the outer cylinder becomes more complicated as it must be provided with circumferential grooves for the barrier beams.

1010

Tysk fremlæggelsesskrift nr. 28 28 343 viser en cylinderlås med to aksialt forskydelige hjælpestifter. Disse bevæges af et fremspring på nøglen til en stilling, i hvilken en udsparing i hjælpestifterne bringes i overensstemmelse med en boring i cy-15 lindervæggen for et kugleformet spærreelement, som derved kan gå ud af indgreb med et udtag i væggen af den ydre cylinder og således frigøre den indre cylinder. Denne lås giver kun nogle få ekstra kombinationsmuligheder og giver ikke væsentlig større driftssikkerhed. I lighed med de to ovennævnte konstruktio-20 ner kræver denne nøgle en speciel profil.German Patent Specification No. 28 28 343 shows a cylinder lock with two axially displaceable auxiliary pins. These are moved by a protrusion on the key to a position in which a recess in the auxiliary pins is aligned with a bore in the cylinder wall of a spherical locking member, which may thereby engage with an outlet in the wall of the outer cylinder and thus releasing the inner cylinder. This lock provides only a few extra combination options and does not provide significantly greater reliability. Similar to the above two constructions, this key requires a special profile.

Fra EP-patentansøgning nr. 161.654 kendes en cylinderlås med hjælpestifter, som dels samvirker direkte med den ydre cylinder, dels samvirker med et kugleformet spærreelement. Også her 25 har nogle af hjælpestifterne en kompliceret form. De er desuden indrettet således, at de kan afføles enkeltvis ved forsøg på opdirkning af låsen. Endvidere må hjælpestifterne bevæges i en mindre vinkel med nøglens plan under dennes indføring med heraf følgende smigvirkninger, friktion og slitage.EP patent application No. 161,654 discloses a cylinder lock with auxiliary pins which cooperates directly with the outer cylinder and partly cooperates with a spherical locking element. Here, too, some of the auxiliary pins have a complicated shape. In addition, they are arranged so that they can be sensed individually when attempting to unlock the lock. Furthermore, the auxiliary pins must be moved at a smaller angle with the key plane during its insertion, with consequent flattering effects, friction and wear.

3030

Formålet med opfindelsen er at tilvejebringe en cylinderlås af den indledningsvis nævnte art, og som både er dirkesikker og egnet til systemlåsning, og som desuden er relativ enkel i fremstilling uden i nævneværdig grad at være behæftet med 35 ulemperne ved de kendte konstruktioner.The object of the invention is to provide a cylinder lock of the kind mentioned above, which is both direct-proof and suitable for system locking, and which is furthermore relatively simple in manufacture without having to a considerable degree the disadvantages of the known constructions.

Dette formål er ifølge opfindelsen opnået ved hjælp af en cylinderlås af den indledningsvis nævnte art, hvor det karakte- ristiske er, at det nævnte spor for spærreorganerne er anord- net i den indre cylinders periferi.This object is achieved according to the invention by means of a cylinder lock of the type mentioned in the beginning, characterized in that said groove for the locking means is arranged on the periphery of the inner cylinder.

44

DK 162356BDK 162356B

Derved opnås store produktionstekniske fordele bl.a. fordi den 5 indre cylinder bliver meget enklere i fremstilling; ikke kun ved traditionel spåntagende bearbejdning, men også ved f.eks. pulvermetallurgiske fremstillingsmetoder. Endvidere vil udformningen af sporene i cylinderens periferi medføre, at spærreorganernes bevægelse kan gøres tilnærmelsesvis tangential, 10 dvs. stort set vinkelret på nøglens plan. Dette har flere fordele, bl.a. at spærreorganerne lettere vil kunne bevæges under nøglens indføring, uden at der opstår stor friktion og slitage. Endvidere vil spærreorganerne på modsatte sider af nøglespalten kunne gå sammen og lukke nøglespalten således, at de 15 enkelte spærreorganer ikke lader sig afføle enkeltvis ved forsøg på opdirkning. Endvidere vanskeliggøres en opdirkning af, at dirkeretningerne for låsens traditionelle stifter og spærreorganerne er ca. 90° forskudt.Thereby, large production technical advantages are obtained, among other things. because the 5 inner cylinder becomes much simpler in manufacture; not only by traditional machining, but also by e.g. powder metallurgical manufacturing methods. Furthermore, the design of the grooves on the periphery of the cylinder will cause the movement of the locking means to be made approximately tangential, i.e. largely perpendicular to the key plane. This has several advantages including that the locking means will be easier to move during the insertion of the key without causing much friction and wear. Furthermore, the locking means on opposite sides of the key slot will be able to collapse and close the key slot so that the 15 individual locking means cannot be felt individually when attempting to work up. Furthermore, it is made difficult to work up that the directional directions for the traditional pins of the lock and the locking means are approx. 90 ° offset.

20 Det skal bemærkes, at låseelementernes tangentiale bevægelse ikke nødvendiggør en speciel nøgleprofil således, at man vil kunne benytte eksisterende systemprofiler med de forenklinger dette medfører. Ved systemlåsning kan dirkesikre cylinderlåse ifølge opfindelsen anvendes i de følsomme døre, samtidigt med 25 at nøglerne til disse låse også vil kunne benyttes i sædvan lige cylinderlåse for de øvrige døre, da disse sædvanlige cylinderlåse ikke generes af de ekstra nøgleskær på nøglens flade side.It should be noted that the tangential movement of the locking elements does not require a special key profile so that existing system profiles can be used with the simplifications this entails. In system locking, direct-lock cylinder locks according to the invention can be used in the sensitive doors, while at the same time the keys to these locks can also be used in ordinary cylinder locks for the other doors, since these usual cylinder locks are not bothered by the extra key cuts on the flat side of the key.

30 I en første hensigtsmæssig udførelsesform for opfindelsen har det nævnte spærreelement form af en langsgående spærrebom, som er bevægelig i den indre cylinder mellem en første stilling, hvori den ligger indenfor cylinderens periferi, og en anden stilling, hvori den delvis rager ud fra cylinderens periferi 35 for optagelse i den nævnte udsparing i den ydre cylinder for derigennem at forhindre en drejning af cylindrene i forhold til hinanden. Det er karakteristisk, at spærrebommen forskydesIn a first convenient embodiment of the invention, said locking element is in the form of a longitudinal locking bar movable in the inner cylinder between a first position in which it lies within the circumference of the cylinder and a second position in which it protrudes partially from the periphery of the cylinder. 35 for accommodating said recess in the outer cylinder, thereby preventing rotation of the cylinders relative to each other. It is characteristic that the barrier boom is displaced

DK 162356BDK 162356B

s menem nævnte første og anden stilling af spærreorganerne ved en perifer bevægelse af disse. Ved dirkeforsøg vil man ikke kunne manipulere spærrebommen direkte, men kun de mellemliggende spærreorganer, hvilket bevirker, at låsen bliver særlig 5 dirkesikker. Samtidigt opnås en god driftssikkerhed.s said first and second positions of the locking means by a peripheral movement thereof. In the case of direct tests, it will not be possible to manipulate the locking bar directly, but only the intermediate locking means, which causes the lock to become particularly 5 direct safe. At the same time, good reliability is achieved.

Endvidere kan man ifølge opfindelsen gøre spærreorganerne stort set bueformede og forsyne dem med udsparinger af forskellig dybde i deres ydre periferi for optagelse af spærre-jø elementet i dettes spærrende henholdsvis frigørende stilling.Furthermore, according to the invention, the locking means can be made substantially arcuate and provide them with recesses of different depth in their outer periphery for accommodating the locking member in its locking or releasing position, respectively.

Spærreelementerne vil derved kunne glide relativt let i deres respektive spor og blive holdt på plads af spærrebommen.The locking elements will thereby be able to slide relatively easily in their respective tracks and be held in place by the locking bar.

I en anden fordelagtig udførelsesform er spærreorganerne ud-formet i hovedsagen som vippearme, der er svingbart fastgjort i respektive spor og ved deres ene ende er forsynet med en udragende knast, som udgør det nævnte spærreelement. Herved reduceres antallet af bevægelige dele samtidig med, at spærreorganerne kan fremstilles med mindre krav til nøjagtighed og 2ø overfladefinish.In another advantageous embodiment, the locking means are generally formed as rocker arms, which are pivotally secured in respective grooves and at their one end are provided with a projecting cam constituting said locking element. This reduces the number of moving parts while the locking means can be manufactured with less accuracy and 2o surface finish requirements.

Det er endvidere foreslået at gøre vippearmerne i hovedsagen segmentformede. Det tilsvarende spor i den indre cylinder gøres da også segmentformet, hvilket er let at udføre i praksis.Furthermore, it is proposed to make the rocker arms in the main case segment-shaped. The corresponding groove in the inner cylinder is then also made segment-shaped, which is easy to perform in practice.

25 Spærreorganet vil derved i høj grad kunne udfylde det tilsvarende spor, hvilket letter monteringen samtidig med, at spærreorganet får tilstrækkelig materialetykkelse i det parti, hvori der skal tilvejebringes et hul for dets monteringstap.The locking means will thus be able to fill the corresponding groove to a great extent, which facilitates the mounting while giving the locking means sufficient material thickness in the portion in which a hole for its mounting pin is to be provided.

2ø Spærreorganerne kan med fordel være anbragt i sæt på enten den ene eller begge sider af spalten for nøglen, idet hvert sæt af spærreorganer kan være indrettet til at påvirke samme spærrebom. Herved udvides antallet af kombinationsmuligheder samtidig med, at dirkesikkerheden øges.The locking means may advantageously be arranged in sets on either one or both sides of the key slot, each set of locking means being adapted to actuate the same locking bar. This expands the number of combination options while increasing directional safety.

I den udførelsesform, hvor spærreorganerne udgøres af vippearme, kan der for hvert sæt anordnes to udsparinger i den ydre 35In the embodiment in which the locking means are made of rocker arms, for each set two recesses can be arranged in the outer 35

DK 162356 BDK 162356 B

6 cylinder, hvilke udsparinger hver har stort set samme afstand fra vippearmenes omdrejningsakse, når de to cylindre befinder sig i indbyrdes låst stilling. Herved kan man med en og samme udformning af vippearmene dække to forskellige låsesti 11inger 5 for disse ved kun at vende låsearmen om en akse vinkelret på dennes omdrejningsakse. Derved forenkles låsen og omkostningerne ved dens fremstilling.6 cylinders, each recess having substantially the same distance from the pivot axis of the rocker arms when the two cylinders are in mutually locked position. Hereby, with one and the same design of the rocker arms, two different locking positions 5 can be covered for these by only turning the locking arm about an axis perpendicular to its axis of rotation. This simplifies the lock and the cost of its manufacture.

Opfindelsen angår også en nøgle for en cylinderlås, hvilken 10 nøgle omfatter et i hovedsagen fladt parti for indføring i en spalte i låsen, hvilket flade parti er forsynet med nøgleskær på i det mindste én sidekant. Det karakteristiske ved nøglen ifølge opfindelsen er, at det nævnte flade parti er forsynet med yderligere nøgleskær anbragt tilnærmelsesvis vinkelret på 15 mindst en af de flade sider. Sædvanligvis vil sådanne nøgler have førstnævnte nøgleskær på kun en af to modstående sidekanter, og i dette tilfælde er det ifølge opfindelsen foreslået at anbringe det yderligere nøgleskær ved den modstående side-kant, 20The invention also relates to a key for a cylinder lock, said key comprising a substantially flat portion for insertion into a slot in the lock, said flat portion being provided with key cuts on at least one side edge. The characteristic of the key according to the invention is that said flat portion is provided with additional key cuts arranged approximately perpendicular to at least one of the flat sides. Usually, such keys will have the first key cutter on only one of two opposite side edges, and in this case it is proposed according to the invention to place the additional key cutter at the opposite side edge, 20.

Opfindelsen skal nærmere forklares i det følgende under henvisning til tegningen hvorThe invention will be explained in more detail below with reference to the drawing

Fig. 1 viser et snit gennem en cylinderlås ifølge opfindelsen, 25FIG. 1 shows a section through a cylinder lock according to the invention, 25

Fig. 2 en indre cylinder og en nøgle for cylinderlåsen i mindre målestok og vist i perspektiv, ogFIG. 2 shows an inner cylinder and a key for the cylinder lock on a smaller scale and shown in perspective; and

Fig. 3 cylinderlåsen i en anden udførelse.FIG. 3 in another embodiment.

3030

Tilsvarende dele har samme henvisningstal i figurerne.Corresponding parts have the same reference numerals in the figures.

Den i fig. 1 viste cylinderlås omfatter en indre cylinder 1, der kan drejes i en ydre cylinder 2. Boringer 3 i disse cylin-35 dre optager spærrestifter 4, 5, som påvirkes af en fjeder 6.The FIG. 1, the cylinder lock shown in Fig. 1 comprises an inner cylinder 1 which can be rotated in an outer cylinder 2. Bores 3 in these cylinders receive locking pins 4, 5 which are actuated by a spring 6.

Den indre cylinder 1 har en spalte 7 for en nøgle 8 - se fig.The inner cylinder 1 has a slot 7 for a key 8 - see fig.

2 - hvis skær 9 ved nøglens indføring i cylinderen 1-vil brin-2 - if the insert 9 at the key insertion into the cylinder 1 will

'DK 162356B'DK 162356B

7 ge spærrestifterne 4, 5 i en sådan stilling, at skilleplanet imellem dem bliver sammenfaldende med skilleplanet imellem cylindrene 1, 2 således, at disse kan drejes i forhold til hinanden ved hjælp af nøglen 8.7 position the locking pins 4, 5 in such a position that the separating plane between them coincides with the separating plane between the cylinders 1, 2 so that they can be rotated relative to each other by the key 8.

55

Den ydre cylinder 2 er forsynet med to udsparinger 10, en på hver side af den indre cylinders 1 nøglespalte 7 i cylinderens låste stilling. Udsparingerne 10 har et halvcirkulært tværsnit for delvis optagelse af cirkulære spærrebomme 11, som kan be-10 væges radiært ind og ud af udsparingerne 10. Styringen af spærrebommene 11 tilvejebringes ved hjælp af stort set bueformede spærreorganer 12, 13, der er bevægelige i perifere spor 14, som udgår fra nøglespalten 7 i den indre cylinder 1. Spærreorganerne 12, 13 belastes i retning af nøglespalten 7 ved 15 hjælp af fjedre 15.The outer cylinder 2 is provided with two recesses 10, one on each side of the key slot 7 of the inner cylinder 1 in the locked position of the cylinder. The recesses 10 have a semi-circular cross section for partially receiving circular barriers 11 which can be moved radially in and out of the recesses 10. The control of barriers 11 is provided by largely arcuate barriers 12, 13 movable in peripheral grooves. 14, which starts from the key slot 7 in the inner cylinder 1. The locking means 12, 13 are loaded in the direction of the key slot 7 by means of springs 15.

Hvert spærreorgan 12, 13 er ved sin ydre periferi forsynet med en udsparing, som har et dybere parti 16 og et tilstødende fladere parti 17. Dybden af disse partier 16, 17 svarer stort 20 set til henholdsvis den hele og den halve diameter af spærrebommene 11. Det ses, at de to spærreorganer 12, 13 er forskydelige ved, at det dybere parti 16 for det første spærreorgans 12 vedkommende ligger nærmest fjederen 14, medens det fladere parti 17 for det andet spærreorgans 13 vedkommende ligger nær-25 mest fjederen. Ved den viste placering af udsparingerne 10 i den ydre cylinder 2 vil det første spærreorgan 12 tillade en frigørende stilling af spærrebommen 11, når spærreorganet 12 er forskudt længst muligt ned mod nøglespalten 7, medens det andet spærreorgan 13 må forskydes noget i retning fra nøgle-30 spalten 7 mod virkningen af fjederen 15, for at det dybere parti 16 af udsparingen kan blive liggende overfor spærrebommen 11 og tillade, at denne går ud af i ndgreb med udspar i ngen 10 i den ydre cylinder 2. For at en nøgle 8 skal kunne åbne låsen, rent bortset fra at dens skær 9 må kunne placere spær-35 restifter 4, 5 i rigtig stilling, må nøglen 8 have skær 18, 19, som tillader, at spærreorganet 12 forbliver i den stilling, som er vist i fig. 1, medens nøglen 8 på den modsatteEach locking member 12, 13 is provided at its outer periphery with a recess having a deeper portion 16 and an adjacent flatter portion 17. The depth of these portions 16, 17 corresponds substantially to the whole and half the diameter of the barriers 11 respectively. It will be seen that the two locking means 12, 13 are displaceable in that the deeper portion 16 for the first locking member 12 is closest to the spring 14, while the flatter portion 17 for the second locking member 13 is closest to the spring. At the shown location of the recesses 10 in the outer cylinder 2, the first locking member 12 will allow a releasing position of the locking bar 11 when the locking means 12 is displaced as far as possible towards the key slot 7, while the second locking means 13 must be shifted somewhat in the direction of the key. 30, the slot 7 against the action of the spring 15 so that the deeper portion 16 of the recess can lie against the latch 11 and allow it to engage with the recess 10 in the outer cylinder 2. For a key 8 to be able to open the lock, except that its insert 9 must be able to place the locking pin rest pins 4, 5 in the correct position, the key 8 must have the insert 18, 19 which allow the locking member 12 to remain in the position shown in FIG. . 1, while the key 8 on the opposite

DK 162356BDK 162356B

flade side ikke må have skær overfor spærreorganet 13 således, at dette forskydes tilstrækkeligt mod virkningen af fjederen 15 til, at det dybere parti 16 af udsparingen kommer til at ligge overfor spærrebommen 11, hvorved denne kan gå ud af ind-5 greb med den ydre cylinder 2 og derved tillade en indbyrdes drejning af cylindrene 1, 2.the flat side must not have cuts against the locking member 13 so that it is sufficiently displaced against the action of the spring 15 so that the deeper portion 16 of the recess faces the locking bar 11, whereby it can exit from the engagement with the outer cylinder 2, thereby permitting mutual rotation of the cylinders 1, 2.

I den indre cylinder 1 i udførelsesformen i fig, 3 er sporene 19 for spærreorganerne 20 maskinfremstillet som rene segmen-10 ter, hvorefter der udbores en forsænkning 21 for at give plads for fjederen 15. Spærreorganerne 20, som udgøres af i hovedsagen segmentformede vippearme, som ved sin ene ende er forsynet med en udragende knast 22, er fastgjort i respektive spor 19 således, at de er svingbare omkring en omdrejningsakse i form 15 af en stift 23. Stiften 23 er fortrinsvis fælles for samtlige spærreorganer, som ligger på samme side af nøglespalten 7.In the inner cylinder 1 of the embodiment of Fig. 3, the grooves 19 of the locking means 20 are machined as clean segments, after which a recess 21 is drilled to make room for the spring 15. The locking means 20, which are generally segmented rocker arms, which is provided at one end with a projecting cam 22, is fixed in respective grooves 19 so that they are pivotable about a rotary axis in the form 15 of a pin 23. The pin 23 is preferably common to all locking means located on the same side. of the key slot 7.

Den ydre cylinder 2 er på hver side af nøglespalten 7 forsynet med to langsgående udsparinger 24, 25, som ligger i stort set 20 samme afstand fra stiftens 23 stilling, når cylindrene 1, 2 er låst i forhold til hinanden. Det bliver derved muligt at anvende spærreorganer 20, som er ens uanset hvilken af udsparingerne 24, 25 deres knast 22 skal samvirke med. Knasterne 22 kan for øvrigt have en svagt duehaleformet facon og sporene 24, 25 25 en tilsvarende facon således, at knasterne 22 ikke så let vil kunne gå ud af sporene, når cylinderen 1 udsættes for et drejningsmoment.The outer cylinder 2 is provided on each side of the key slot 7 with two longitudinal recesses 24, 25 which are approximately 20 the same distance from the position of the pin 23 when the cylinders 1, 2 are locked relative to each other. It then becomes possible to use locking means 20 which are identical regardless of which of the recesses 24, 25 their cam 22 must cooperate with. Incidentally, the lugs 22 may have a slightly pigeon-shaped shape and the grooves 24, 25 25 have a similar shape such that the lugs 22 will not be able to exit the grooves so easily when the cylinder 1 is subjected to a torque.

Hvis nøglen 8 skal kunne åbne låsen i fig. 3, må nøglen 8 have 30 skær overfor vippearmen til venstre for nøglespalten 7 for at undgå, at knasten 22 går i indgreb med sporet 24, medens nøglen 8 ikke må have skær overfor vippearmen på højre side således, at knasten 22 går ud af indgreb med sporet 25.If the key 8 is to be able to open the lock in FIG. 3, the key 8 must have 30 inserts against the rocker arm to the left of the key slot 7 to prevent the cam 22 from engaging with the groove 24, while the key 8 must not have inserts against the rocker arm on the right side so that the cam 22 exits with the groove 25.

35 Som vist i fig. 2 er spærreorganerne 12, 13, 20 anbragt i sæt på hver side af nøglespalten 7. Hvert sæt kan passende indeholde tre eller fire spærreorganer, og sporene for spærreorga-35 As shown in FIG. 2, the locking means 12, 13, 20 are arranged in sets on each side of the key slot 7. Each set may suitably contain three or four locking means, and the grooves for the locking means are provided.

Claims

A device by a cylinder lock comprising an inner cylinder (1) which can be rotated in an outer cylinder (2), bores (3) in said cylinders (1, 2) and which receives locking pins (4, 5) which locking pins may be moved between positions wherein they allow respectively prevent rotation of the cylinders (1, 2) by means of a flat key (8) which can be inserted into a slot (7) in the inner cylinder (1), and provided with key cuts (9) on at least one edge side, wherein the outer cylinder (2) is provided with one or more recesses (10, 24, 35) and the inner cylinder (1) is provided with a plurality of grooves ( 14, 19), starting from said key (7) for the key, which tracks locking means (12, 13, 20) which are movable between positions in which they bring one or more locking elements (11, 22) for engaging respectively out of engagement with said recesses (10, 24, 25) in the outer cylinder (2) for locking or releasing, respectively of the rotatability between the cylinders (i, 2) by means of key cuts (18) on at least one of the flat sides of the key (8), characterized in that said grooves (14, 19) for the locking means (12, 13) , 20. is located in the periphery of the inner cylinder (1).

Apparatus according to claim 1, wherein said locking element is in the form of a longitudinal locking bar (11) movable in the inner cylinder between a first position in which it lies within the periphery of the cylinder and a second position in which it protrudes partly from the periphery of the cylinder for accommodating said recess (10) in the outer cylinder (2) to prevent the cylinders (1, 2) from rotating relative to each other, characterized in that the barrier boom (11) is displaced between the first and the the second position of said locking means (12, 13. by a peripheral movement thereof)

Device according to claim 2, characterized in that the locking means (12, 13) are generally arcuate and are provided in their outer periphery with recesses (16, 17) of different depth for accommodating the locking bar (11) in its release. running or locking position respectively.

3. There is also no obstacle to combining the two types of locking means in FIG. 1 and 3 in one lock, e.g. with locking means 12 from FIG. 1 on one side of the key gap and locking means 20 from Fig. 3 on the other. This will further complicate any upgrading. The device according to the invention can be varied in many ways without departing from the idea of the invention, for example with regard to the design and operation of the blocking means and / or elements. Claims. 25

Device according to claim 1, characterized in that said locking means (20) is formed essentially as a rocker arm pivotally secured in the respective grooves 30 (19) and provided at one end with a projecting cam. (22) constituting said locking member.

Device according to claim 4, characterized in that the rocker arm (20) is substantially segment-shaped. 35

Device according to any one of the preceding claims, characterized in that the locking means (12, 13, 20) are arranged on one or both sides of the slot (7) for the key.

Device according to claims 2 and 6, characterized in that each set of locking means (12, 13) act on the same locking bar (11).

Device according to claims 4 and 6, characterized in that for each set of rocker arms (20) there are two recesses (24, 10 25), each of which have approximately the same distance from the rocker arm (23) when the two cylinders (1, 2) are in mutually locked position.

A cylinder lock key according to any one of the preceding claims, comprising a substantially flat portion for insertion into a slot (7) in the lock, said flat portion being provided with key cutters (9) on at least one side edge, characterized in that additional key cutters (18) are disposed approximately perpendicular to at least one of the flat sides 20 of said flat portion.

Key according to claim 9, wherein said flat portion has the first-mentioned key cutter (9) on only a first of two opposite side edges, characterized in that the additional key cutter (18) is arranged at the second side edge of the flat party. 30 35