DK177836B1

DK177836B1 - Door or window lock with a swivel fall tube

Info

Publication number: DK177836B1
Application number: DK187199A
Authority: DK
Inventors: Nabb Peter
Original assignee: Abloy Oy
Priority date: 1998-12-31
Filing date: 1999-12-29
Publication date: 2014-09-08
Also published as: FI105495B; DK199901871A; FI982851A; SE9904767L; SE517650C2; NO996581L; FI982851A0; NO328381B1; NO996581D0; SE9904767D0

Abstract

En dør- eller vindueslås omfatter et ved hjælp af et håndtags firkantpind (11) drejeligt fallerør (1), som er fremstillet af et svagt elastisk materiale, fortrinsvis helt eller næsten helt af plastik eller et tilsvarende materiale. For at kunne montere firkantpinden ( 11) har fallerøret (l) et gennemgående, i forhold til firkantpin den svagt underdimensioneret i det væsentlige kvadratisk, hul ( 2) samt ved eller i nærheden af dette hul har et elastisk område som fjedrer indad ved firkantpindens (11) montering. Det elastiske område omkring hullet ( 2) for firkantpinden omfatter hullets begrænsningsflade og mindst en, fortrinsvis mindst to i nærheden af denne flade anordnede åbninger (7,8) i fallerøret (1).A door or window lock comprises a pivot (1) rotatable by means of a handle (1), which is made of a slightly elastic material, preferably entirely or almost entirely of plastic or a similar material. In order to be able to mount the square pin (11), the drop tube (1) has a continuous, in relation to the square pin, the slightly under-dimensioned substantially square, hole (2) and at or near this hole has an elastic region which springs inwards at the square pin ( 11) mounting. The elastic region around the hole (2) of the square pin comprises the limiting surface of the hole and at least one, preferably at least two adjacent apertures (7, 8) located in the fall tube (1).

Description

DK 177836 B1 i Dør- eller vindueslås med et drejeligt fallerørDK 177836 B1 in Door or window lock with a swivel drop pipe

Opfindelsen angår en dør- eller vindueslås ifølge den indledende del til krav 1.The invention relates to a door or window lock according to the preamble of claim 1.

55

Fallen eller rigelen i en dør- eller vindueslås manøvreres i regelen med et håndtag, som vrides manuelt 15 til 60 grader for at trække fallen eller rigelen ind i låsehuset. Håndtaget er sædvanligvis vandret i sin udgangspo-10 sition. For at sikre en overordnet velfungerende og robust dørbetjenings-anordning er det vigtigt, at spillerummet mellem firkantpinden og håndtaget samt spillerummet mellem firkantpinden og låsens fallerør (dvs. følgeelementet, der omsætter firkantpindens drejebevægelse til 15 fallens eller rigelens bevægelse fremad eller tilbage i låsen) er så lille som muligt. Blot et lille spillerum opfattes ofte af brugeren som noget, der forringer produktets kvalitet.The trap or latch in a door or window lock is usually operated with a handle that is manually rotated 15 to 60 degrees to pull the latch or latch into the lock housing. The handle is usually horizontal in its initial position. In order to ensure an overall well-functioning and robust door control device, it is important that the clearance between the square pin and the handle and the clearance between the square pin and the locking pipes (ie the follower element which translates the square pivot movement to the movement of the trap or the bolt forward or back in the lock) is as small as possible. Just a little leeway is often perceived by the user as something that degrades the quality of the product.

20 Spillerummet mellem firkantpinden og fallerøret er i de kendte låse næsten altid relativt stort. Dette skyldes blandt andet at låseproducenten sædvanligvis er en anden end håndtagsproducenten. Firkantpinden er normalt kvadratisk i tværsnit og har nominelt dimensionen 8x8 mm. I 25 praksis er firkantpindens dimensioner noget mindre end det nominelle mål. I fallerøret findes et kvadratisk hul, i hvilket firkantpinden monteres, og dette hul er normalt ca. en tiendedel millimeter større end det nominelle mål for firkantpinden. Der opstår således uundgåeligt et gab 30 eller spillerum mellem firkantpinden og fallerøret. Denne praksis for dimensioneringen er opstået for at man skal kunne være sikker på at monteringen af firkantpinden i låsen skal kunne udføres uden besvær.20 In the known locks, the clearance between the square stick and the trap tube is almost always relatively large. This is because, among other things, the lock manufacturer is usually different from the handle manufacturer. The square stick is usually square in cross section and nominally has the dimension 8x8 mm. In 25 practice, the dimensions of the square stick are somewhat smaller than the nominal target. In the fall pipe there is a square hole in which the square stick is mounted, and this hole is usually approx. one-tenth of a millimeter larger than the nominal target of the square stick. Thus, a gap 30 or clearance between the square stick and the drop pipe inevitably arises. This practice of sizing has arisen in order to be sure that the mounting of the square pin in the lock can be carried out without any hassle.

DK 177836 B1 2DK 177836 B1 2

Der findes et antal kendte konstruktioner med henblik på at eliminere spillerummet mellem fallerøret og firkantpinden. For eksempel viser publikationen CH 599 435 et 5 fallerør, som har en speciel skrue med en konisk del, som via et mellemstykke effektivt mindsker spillerummet mellem firkantpinden og fallerøret. Konstruktionen med dens mange dele er kompliceret og dyr at fremstille og kræver desuden monteringsarbejde såvel på låsefabrikken som ved 10 håndtagets montering. Publikationen DE 3806878 Al (SCHULTE SCHLAGBAUM AG) viser en fallerørskonstruktion med et fallerør af metal, som på begge sider omgives af cylindriske lejedele af blødere materiale. Disse lejedele er forsynet med en eller flere radiale slidser, som gør 15 lejedelene eftergivelige i radial retning. I lejedelene findes en snævert dimensioneret åbning for firkantpinden, således at spillerummet mellem fallerøret og firkantpinden kan elimineres gennem lejedelenes dimensionering. De radiale slidser svækker imidlertid lejedelene betydeligt, 20 hvorfor man ikke kan forvente, at denne konstruktion vil holde til langvarigt brug.There are a number of known constructions for eliminating the clearance between the fall pipe and the square stick. For example, publication CH 599 435 discloses a 5 drop tube having a special screw with a tapered portion which effectively via a spacer effectively reduces the clearance between the square pin and the drop tube. The design with its many parts is complicated and expensive to manufacture and also requires assembly work both on the locking plant and on the 10 handle assembly. The publication DE 3806878 A1 (SCHULTE SCHLAGBAUM AG) shows a fall pipe structure with a metal fall pipe, which is surrounded on both sides by cylindrical bearing parts of softer material. These bearing parts are provided with one or more radial slots which render the bearing parts resilient in the radial direction. In the bearing parts there is a narrow dimensioned opening for the square stick, so that the clearance between the drop pipe and the square stick can be eliminated through the dimensioning of the bearing parts. However, the radial slots weaken the bearing parts considerably, 20 which is why this construction cannot be expected to last for long-term use.

Opfindelsens formål er at tilvejebringe en kvalitetslås, i hvilken fallerøret på grund af sin form og dimensione-25 ring er koblet praktisk taget spillerumsfrit til håndtagets firkantpind. Et andet formål er at firkantpindens montering skal være enkel og kunne udføres uden værktøj. Konstruktionen skal være billig at fremstille og montere samt med hensyn til dimensionerne ved behov være let at 30 anvende sammen med en forstærkende metal-støtte til fallerøret. Endvidere skal et fallerør ifølge opfindelsen uden andre tiltag end en passende dimensionering kunne passe for anvendelse i de fleste moderne låsemodeller.The object of the invention is to provide a quality lock in which, due to its shape and dimension, the drop pipe is coupled virtually free of clearance to the square stick of the handle. Another purpose is that the square stick assembly must be simple and can be done without tools. The construction must be inexpensive to manufacture and assemble, and with respect to the dimensions, if necessary, be easy to use with a reinforcing metal support for the fall pipe. Furthermore, a fall pipe according to the invention must be capable of being suitable for use in most modern locking models without other measures than a suitable design.

DK 177836 B1 3DK 177836 B1 3

Opfindelsens formål opnås på den måde som er anført i krav 1.The object of the invention is achieved in the manner set forth in claim 1.

5 Ved svarende til opfindelsen at anbringe en eller flere åbninger i fallerøret i nærheden af hullet for firkantpinden kan fallerøret, uden at dets generelle styrke svækkes væsentligt, gøres lige præcis så eftergivende, at hullet til firkantpinden let kan underdimensioneres i 10 forhold til firkantpindens tværsnit, således at firkantpinden fastholdes i fallerøret praktisk taget uden spillerum. Eftersom at hullet i fallerøret giver efter når firkantpinden tvinger hullets vægge til elastisk at give efter, kommer kraftoverføringen mellem håndtaget og låse-15 mekanismen til at ske næsten spillerumsfrit, og brugeren fornemmer, at låsen præcist reagerer på håndtagets bevægelse. For at opnå et sådant helhedsindtryk af god kvalitet skal også spillerummet mellem håndtaget og firkantpinden være tæt på nul. Også i øvrigt skal låsens indre 20 mekanisme være af god kvalitet.By placing one or more openings in the fall tube near the square of the square peg, according to the invention, the fall tube, without significantly weakening its general strength, can be made just as resilient that the hole for the square peg can be easily sub-dimensioned in relation to the cross-section of the square peg, so that the square stick is held in the fall pipe virtually without clearance. Since the hole in the fall pipe gives way when the square pin forces the holes of the hole to resiliently yield, the force transfer between the handle and the locking mechanism occurs almost clearance-free, and the user senses that the lock responds precisely to the movement of the handle. To achieve such a good quality overall impression, the clearance between the handle and the square stick must also be close to zero. Also, the inner mechanism of the lock must be of good quality.

Ved at anbringe åbninger i det mindste i nærheden af to hosliggende sider i hullet i fallerøret opnås den mest effektive spillerumsfri kobling mellem firkantpinden og 25 fallerøret.By placing openings at least near two adjacent sides of the hole in the drop tube, the most effective clearance free coupling between the square stick and the drop tube is obtained.

Det har vist sig at være vigtigt, at kontakten er god mellem firkantpinden og fallerørets hul ved hullets hjørner. Hjørnerne bør hensigtsmæssigt ligge kontinuert an 30 mod firkantpinden når denne er monteret på sin plads. Ved at anbringe åbninger i nærheden af to hosliggende sider af hullet i fallerøret opnås en sådan fjedring i fallerø- DK 177836 B1 4 ret at specielt hullet s hjørnepartier opnår et godt anlæg mod firkantpinden.It has been found to be important that the contact is good between the square stick and the drop pipe hole at the corners of the hole. Conveniently, the corners should be continuous 30 against the square pin when mounted in place. By placing openings in the vicinity of two adjacent sides of the hole in the fall pipe, such a suspension in the fall pipe is obtained that especially the corner's corner portions achieve a good abutment against the square stick.

I den flade, som i fallerøret begrænser hullet til fir-5 kantpinden, grænsefladen, bør der hensigtsmæssigt ved en, fortrinsvis to af hullets hosliggende sider findes tilnærmelsesvis plane overflader, som i forhold til firkantpinden udviser svagt skråtstillede områder, mellem hvilke der findes et grænseområde, som er indrettet med henblik 10 på kontinuert at være i kontakt med firkantpinden når denne er monteret på sin plads. Dette medvirker til en god og spillerumsfri kontakt mellem firkantpinden og fallerøret .Conveniently, in the plane which confines the hole to the square pin, the interface, at one, preferably two of the adjacent sides of the hole, approximately flat surfaces which exhibit slightly inclined regions relative to the square pin between which there is a boundary region , which is arranged for continuous contact with the square pin when mounted in its place. This contributes to a good and room-free contact between the square stick and the drop pipe.

15 Ved at dimensionere fallerørets hul således at det ved montering af firkantpinden fjedrer 0,03 til 1 mm, fortrinsvis 0,1 til 0,4 mm, kan firkantpinden sættes på plads uden specielle tiltag og alligevel er firkantpindens fastholdelse ved hensigtsmæssigt valg af materialer 20 og dimensionering meget stabil, men alligevel ikke al for snæver.By dimensioning the drop tube hole such that, when mounting the square pin, it springs 0.03 to 1 mm, preferably 0.1 to 0.4 mm, the square pin can be replaced without special measures and yet the square pin is retained by appropriate choice of materials 20 and sizing very stable, but still not too tight.

Ved at udforme hullet i fallerøret således, at mindst en, fortrinsvis to af hullets sideflader helt eller delvis 25 forløber skråt i forhold til hullets centrum, får firkantpinden en god fastgørelsesstøtte, men kan alligevel monteres relativt let og problemfrit uden brug af specielt værktøj eller andre tiltag.By shaping the hole in the fall tube so that at least one, preferably two of the side surfaces of the hole extend completely or partially oblique to the center of the hole, the square peg gets a good fastening support, but can still be mounted relatively easily and seamlessly without the use of special tools or other actions.

30 Ved at udforme hullet i fallerøret med konvergerende tværsnit over i det mindste et vist område, kan firkantpinden relativt let kile sig på plads og som resultat DK 177836 B1 5 heraf opnås en næsten spillerumsfri kraftoverføringskonstruktion .By forming the hole in the trap tube with converging cross-section over at least a certain area, the square stick can relatively easily wedge in place and as a result an almost clearance free power transmission structure is obtained.

Hvis fallerørets materiale vælges således, at materialets 5 eftergivelighed og elasticitet kan udnyttes ikke bare ved den første montering af firkantpinden men også ved gentagen montering, behøves ingen andre eftergivende dele eller strukturer i konstruktionen. Fremstillingsomkostningerne for fallerøret kan således holdes lave, uden at der 10 gives afkald på låsekonstruktionens gode egenskaber.If the material of the fall tube is selected so that the resilience and elasticity of the material 5 can be utilized not only in the initial mounting of the square pin but also in repeated mounting, no other resilient parts or structures are needed in the construction. Thus, the manufacturing cost of the fall pipe can be kept low, without sacrificing the good properties of the locking structure.

Fallerøret fremstilles hensigtsmæssigt i plastic. Hvis låsen udsættes for stærke påvirkninger anbefales det, at fallerøret udstyres med forstærkningsdele af metal, for-15 trinsvis af stål. Det bliver således muligt for områder, der kræver specielle egenskaber at kombinere plastens og metallets bedste egenskaber. Den målfasthed, der kan opnås ved konventionel masseproduktion, er ingen hindring for at kombinere plast og metal som beskrevet.The trap tube is conveniently manufactured in plastic. If the lock is subjected to strong influences, it is recommended that the fall pipe be equipped with metal reinforcement parts, preferably steel. Thus, it becomes possible for areas that require special properties to combine the best properties of plastic and metal. The target strength attainable by conventional mass production is no obstacle to combining plastics and metal as described.

2020

Det er ligeledes hensigtsmæssigt, at fallerøret forsynes med cylindriske styreflader i form af cylindriske fremspring udført i plast, ved hjælp af hvilke fallerøret kan lejres i låsehuset enten direkte eller via forstærknings-25 dele (støtteelementer) af metal. Der behøves da ingen andre specielle lejeanordninger og alligevel er resultatet en enkel og acceptabel samt holdbar lejekonstruktion.It is also desirable that the fall pipe be provided with cylindrical guide surfaces in the form of cylindrical projections made of plastic, by means of which the fall pipe can be mounted in the lock housing either directly or via reinforcing elements (supporting elements) of metal. No other special bearing devices are needed, and yet the result is a simple and acceptable and durable bearing structure.

Fallerøret kan hensigtsmæssigt forsynes med affasede fla-30 der svarende til enderne på hullet til firkantpinden. Dette letter monteringen af firkantpinden.The trap tube may conveniently be provided with bevelled surfaces corresponding to the ends of the square pin hole. This facilitates the mounting of the square stick.

DK 177836 B1 6DK 177836 B1 6

Opfindelsen beskrives i det følgende med henvisning til de vedlagte tegninger, i hvilke figur 1 skematisk viser et sideblik af et fallerør sva-5 rende til opfindelsen, figur 2 skematisk viser fallerøret svarende til figur 1 i perspektiv, 10 figur 3 skematisk viser fallerøret svarende til figur 1 i et plan parallelt med fallerørets omdrejningsaksel, figur 4 skematisk viser en såkaldt eksploderet fremstilling af en fallerørskonstruktion svarende til opfindel-15 sen, figur 5 skematisk og i snit viser anordningen svarende til figur 4 i samlet tilstand.The invention is described in the following with reference to the accompanying drawings, in which: Figure 1 schematically shows a side view of a drop pipe corresponding to the invention; Figure 2 shows schematically the drop pipe corresponding to Figure 1 in perspective; Figure 3 schematically shows the drop pipe corresponding to Figure 1 is a plane parallel to the rotary shaft of the fall tube; Figure 4 is a schematic view of an so-called exploded production of a fall tube structure according to the invention; Figure 5 is a schematic and sectional view of the device corresponding to Figure 4 in overall condition.

20 På tegningen betegner 1 et fallerør, som før montering af en firkantpind 11 har et tilnærmelsesvis kvadratisk hul 2, hvor der ved de ydre kanter findes en affasning 3 for at lette monteringen af firkantpinden. Ved hjælp af et kort cylindrisk fremspring 4 er fallerøret 1 lejret i et 25 låsehus (ikke vist) eller indpasset mellem de i det følgende beskrevne støttelementer 9, 10. Hullet 2 har områ der 5 og 6, hvor hullets sider buer indad mod åbningens centrum. På tegningen er denne udformning overdrevet for at opnå en tydeliggørelse, eftersom hullets 2 sider 5 og 30 6 i praksis afviger fra en tilsvarende plan udformning med kun ca. 0,01 til 1,0 mm. Firkantpindens 11 tværsnit er tilnærmelses kvadratisk med en sidelængde på nominelt 8 mm. I praksis er sidelængden normalt nogle hundreddele DK 177836 B1 7 millimeter under 8 mm. Hullet 2 udformes også hovedsageligt kvadratisk, men ved siderne 5 og 6, eller i det mindste ved den ene af dem, er hullets 2 dimension mindre end 8 mm for at opnå en god pasning mellem fallerøret 1 5 og firkantpinden 11.20 In the drawing, 1 denotes a drop pipe which, prior to mounting a square pin 11, has an approximately square hole 2, where at the outer edges there is a bevel 3 to facilitate the mounting of the square pin. By means of a short cylindrical projection 4, the trap tube 1 is enclosed in a locking housing (not shown) or fitted between the supporting elements 9, 10 described below. The hole 2 has areas 5 and 6 where the sides of the hole arc inwards towards the center of the opening. . In the drawing, this configuration is exaggerated for clarification, since in practice, the 2 sides 5 and 30 6 of the hole deviate from a corresponding planar configuration with only approx. 0.01 to 1.0 mm. The cross-section of the square stick 11 is approximately square with a side length of nominally 8 mm. In practice, the side length is usually some hundred parts DK 177836 B1 7 millimeters below 8 mm. The hole 2 is also formed substantially square, but at the sides 5 and 6, or at least one of them, the dimension 2 of the hole 2 is less than 8 mm to obtain a good fit between the drop tube 1 5 and the square pin 11.

I nærheden af hullets 2 sider 5 og 6 forefindes åbninger 7 og 8. Hullets 2 sidevægge 5 og 6 samt det mellem disse sidevægge og åbningerne 7 resp. 8 beliggende fallerørsma-10 teriale kan forskydes mod den nærliggende åbning, når firkantpinden monteres i hullet 2. Åbningerne 7 og 8 kan, hvis det anses for nødvendigt, være fyldt med et fjedrende materiale som for eksempel gummi, men de kan også være tomme eller helt eller delvis fyldt med et passende smø-15 remiddel. Fallerøret 1 skal være således dimensioneret, at hullet 2 kan ekspandere tilstrækkeligt når firkantpinden monteres. Åbningerne 7 og 8 skal være tilstrækkeligt store, men strukturen skal dog være tilpas holdbar. Det er ligeledes muligt at anbringe åbninger i nærheden af et 20 eller fortrinsvis to af hullets 2 hjørner. I en sådan konstruktion ville et eller flere af hjørnerne i hullet 2 kunne fjedre og bevirke en tilnærmelsesvis spillerumsfri kraftoverførsel mellem fallerøret 1 og firkantpinden 11.In the vicinity of the sides 2 and 5 of the holes 2 are openings 7 and 8. The sidewalls 5 and 6 of the hole 2 and the fall tube material located between these side walls and the openings 7 and 8, respectively, can be displaced against the adjacent opening when the square pin is mounted in the hole 2. The openings 7 and 8 may, if deemed necessary, be filled with a resilient material such as rubber, but they may also be empty or fully or partially filled with a suitable lubricant. The trap tube 1 must be dimensioned so that the hole 2 can expand sufficiently when the square pin is mounted. The openings 7 and 8 must be sufficiently large, but the structure must be sufficiently durable. It is also possible to place openings in the vicinity of a 20 or preferably two of the corners of the hole 2. In such a construction, one or more of the corners in the hole 2 could spring and cause an approximately clearance free transfer of force between the drop tube 1 and the square pin 11.

Det er hensigtsmæssigt, at mindst to af hullets 2 hjørner 25 kontinuert ligger an mod firkantpinden 11, når denne er monteret på plads.It is convenient that at least two of the corners 2 of the hole 2 are in continuous contact with the square pin 11 when it is mounted in place.

I figur 2 ser man, at fallerøret 1 i midterpartiet af hullet 2 har en grænseflade 15, fra hvilken hullet 2 har 30 en aksialt svagt divergerende form i retning fra midter partiet ud mod begge sider. I figur 2 ses ligeledes fremspringets 4 cylindriske form og dettes i sammenligning med diameteren relativt lave højde.In Figure 2, it is seen that the drop tube 1 in the middle portion of the hole 2 has an interface 15, from which the hole 2 has an axially slightly divergent shape in the direction from the middle portion towards both sides. Figure 2 also shows the cylindrical shape of the projection 4 and its relative low height in comparison with the diameter.

DK 177836 B1 8 I figur 3 ser man at fallerøret 1 har fremspring 4 på begge sider for via disse fremspring 4 at opnå en god støtte fra låsehuset eller fra de støttelementer 9, 10, 5 som beskrives i det følgende afsnit.In Figure 3, it is seen that the fall pipe 1 has projections 4 on both sides to obtain a good support from these projections 4 from the lock housing or from the supporting elements 9, 10, 5 described in the following section.

I figur 4 er der på hver side af fallerøret 1 monteret metalliske støtteelementer 9 og 10, i hvilke der gennem partiel gennemstansning er udformet tap-formede frem-10 spring 12 som passer ind i udsparinger 13 i fallerøret 1 og derigennem forhindrer vridning mellem støtteelementerne 9 og 10 og fallerøret 1. Støtteelementet 9, 10 anvendes specielt når låsen er tiltænkt for brug, hvor den udsættes for hård belastning og hvor et fallerør af plastic 15 ikke ville holde tilstrækkeligt længe ved hårdt slid og krævende brug. Fallerørets 1 cylindriske sidefremspring 4 passer ind i støttelementernes 9 og 10 tilsvarende fordybninger 14, således at støttelementerne 9 og 10 samt fallerøret 1 i monteret tilstand danner en tilnærmelses-20 vis samlet og for alle dele holdbar kombinationsstruktur. Firkantpinden 11 (i figurerne vist kort) indføres i fallerørets 1 hul 2 og gennem tilsvarende huller i støttelementerne 9 og 10, når håndtaget monteres i låsen. Hvis der ikke anvendes et støtteelement 9, 10, udformes falle-25 rørets 1 ydre flader således, at fallerøret 1 som sådan inde i låsehuset giver låsens mekanisme den nødvendige styring og kraftoverførsel, når låsen betjenes med håndtaget .In Figure 4, metallic support members 9 and 10 are mounted on each side of the fall pipe 1, in which, through partial punching, pin-shaped projections 12 are formed which fit into the recesses 13 in the fall pipe 1 and thereby prevent twisting between the support elements 9 and 10 and the fall pipe 1. The support member 9, 10 is especially used when the lock is intended for use where it is subjected to heavy load and where a plastic fall pipe 15 would not last long enough for hard wear and demanding use. The cylindrical side projections 4 of the fall tube 1 fit into the corresponding recesses 14 of the support members 9 and 10, so that the support elements 9 and 10 and the fall tube 1 in the assembled state form an approximately 20 combined and durable combination structure. The square pin 11 (shown briefly in the figures) is inserted into the hole 2 of the fall tube 1 and through corresponding holes in the support members 9 and 10 when the handle is mounted in the lock. If a support element 9, 10 is not used, the outer surfaces of the trap tube 1 are designed such that the trap tube 1 as such inside the lock housing provides the locking mechanism with the necessary control and power transmission when the lock is operated with the handle.

30 I figur 5 kan man tydeligere end i figur 2 se grænsefladens 15 placering og hullets 2 svagt hældende afsnit 16 og 17 samt affasningerne 3. Åbningen 7 er trykket noget sammen, eftersom firkantpinden 11 er monteret på plads, DK 177836 B1 9 og materialet har forskudt sig på grund af indføringen af firkantpinden. Støttelementerne 9 og 10 omfatter udadrettede cylindriske styreflader 18, som lejres i en tilsvarende åbning i låsehuset. Fallerørets 1 drejebevægelse 5 kommer da til at ske kontrolleret og uden større friktion .30 In Figure 5, the position of the interface 15 and the slightly inclined portions 16 and 17 of the hole 2 as well as the bevels 3 can be seen more clearly than in Figure 2, since the square pin 11 is mounted in place, DK 177836 B1 9 and the material have displaced due to the insertion of the square stick. The support members 9 and 10 comprise outwardly directed cylindrical guide surfaces 18 which are housed in a corresponding opening in the lock housing. The rotary movement 5 of the trap tube 1 will then be controlled and without much friction.

Opfindelsen begrænser sig ikke til de viste udførselsformer, hvorfor mange varianter og modifikationer er mulige 10 indenfor rammerne af de nedenfor anførte patentkrav.The invention is not limited to the embodiments shown, which is why many variants and modifications are possible within the scope of the claims set forth below.

Claims

A door or window lock with a rotatable drop tube (1), made of a handle 5, made of a resilient material, preferably of plastic or a similar material, which, before inserting the square stick, has a Throughout, in relation to the square pin sub-dimensionally substantially square, 10 holes (2) and in the vicinity of this hole has an elastic region which springs inwardly by the mounting of the square pin (11), characterized in that the elastic area comprises the interface of the hole (15). and at least one, preferably at least two in the vicinity of the interface (15), 15 openings (7,8).

Lock according to claim 1, characterized in that the elastic region comprises one or more openings (7,8) arranged in the vicinity of two adjacent sides of the hole (2) for the square pin (11).

Lock according to claim 2, characterized in that at least two of the interfaces (15) between two adjacent sides of the hole (2) for the square stick are designed to continuously engage the square stick (11) when mounted on its place.

Lock according to any one of the preceding claims, characterized in that in the interface (15) there is one, preferably two, approximately flat surfaces which exhibit slightly inclined areas (16, 17) relative to the square stick, between which has a boundary region arranged for continuous contact with the square pin (11) when mounted in its place.

Lock according to any one of the preceding claims, characterized in that the surface around the hole (2) of the square pin (11) is arranged to spring inward by 0.03 to 1.0 mm at the mounting of the square stick (11). preferably 0.1 to 0.4 mm. 10

Lock according to any one of the preceding claims, characterized in that in the hole (2) of the square pin (11) at least one, preferably two of the side surfaces of the hole (2) is slightly inclined towards the center of the hole. 15

Lock according to any one of the preceding claims, characterized in that the hole (2) for the square pin (11), at least over a limited section, has converging cross sections. 2 0

8. Lock according to any one of the preceding claims, characterized in that the fall pipe (1) in areas subjected to stresses comprises one or more supporting elements (9, 10) of metal, preferably of steel. 25

Lock according to any one of the preceding claims, characterized in that the drop tube (1) comprises cylindrical projections (4), in which the drop tube is pivotally mounted in the lock, either directly or by means of support elements (9, 10).

Lock according to any one of the preceding claims, characterized in that the outer ends of the hole (2) for the square stick (11) have bevels (3). 30