NO134198B

NO134198B -

Info

Publication number: NO134198B
Application number: NO252971A
Authority: NO
Inventors: A Otto; E Blaut; H Klassen
Original assignee: Bergische Stahlindustrie
Priority date: 1970-07-21
Filing date: 1971-07-02
Publication date: 1976-05-24
Also published as: AT310242B; NL7110033A; NO134198C; FR2107036A6; HU170542B; SE377915B; DK137400B; FI52187B; DE2036107B2; CH542086A; YU181571A; BE769855R; DE2036107A1; IT996022B; DD97042A6; YU34331B; FI52187C

Description

Denne oppfinnelse vedrorer en bremsebakkeholderlås for skivebremser, særlig for skinnegående kjbretoyer, hvor svalehalefbringen for bremsebeleggene er tillukket på é"n side, og hvor en låsesperre består av to armer og fatter fra to sider om bremsebakkens holderplate,.idet i det minste én arm som lås er lagret lengdeforskyvbar i en not på tvers foran svalehaleforingen, og fjærende sikringselementer fastholder låsesperren, som angitt i patent 128 !+8l. This invention relates to a brake shoe holder lock for disc brakes, in particular for rail-mounted vehicles, where the dovetail release for the brake linings is closed on one side, and where a locking device consists of two arms and grasps from two sides the brake shoe holder plate, with at least one arm which lock is stored longitudinally displaceable in a groove transversely in front of the dovetail lining, and spring-loaded securing elements retain the locking latch, as stated in patent 128 !+8l.

Den kjente holderlås er således utført The known holder lock is thus produced

at sikringselementene skal være utfort fjærende. Dette forer til selvsikrende låser som kan åpnes og lukkes forholdsvis meget enkelt. Ulempen ved disse låser består dog i at fjærene that the securing elements must be fully resilient. This leads to self-locking locks that can be opened and closed relatively easily. The disadvantage of these locks, however, is that the springs

i de fjærende elementer erfaringsmessig også kan brekke engang og sikringen derved ikke lenger blir pålitelig. in the springy elements, from experience, can even break, and the fuse thereby no longer becomes reliable.

Hensikten med oppfinnelsen er derfor å The purpose of the invention is therefore to

skaffe sikringer for en bremsebakkeholderlås som ikke består av herdet materiale. Bare låsesperren selv er enda fjærende, hvilket tjener som ytterligere sikring. provide fuses for a brake shoe retainer lock that does not consist of hardened material. Only the latch itself is still resilient, which serves as additional security.

Denne oppgave løses ifølge.oppfinnelsen'ved at der som sikringenselement er anordnet f.eks. en splint, en skrue eller en klemstift, hvilke elementer på kjent måte er anordnet loddrett på bremsebakkens plan i tilsvarende boringer.i en av låsesperrens armer. Hensiktsmessig består sikringselementene av rustfritt materiale. According to the invention, this task is solved in that where the fuse element is arranged, e.g. a cotter pin, a screw or a clamping pin, which elements are, in a known manner, arranged vertically on the plane of the brake pad in corresponding bores in one of the arms of the locking device. Appropriately, the securing elements consist of stainless material.

Fordelen ved sikringselementene ifolge oppfinnelsen består i at disse elementer allerede er utviklet i én slik grad. at de kan brukes uten nolen. Men også deres an-vendelsesmåte er kjent i en slik grad at f.eks. enhver vet hvordan en splint skal festes og sikres. Dette forer til at låsesperren etter utskifting kan fastgjores i sin stilling på absolutt sikker måte selv om uovet personale utforer arbeidet. The advantage of the safety elements according to the invention is that these elements have already been developed to such an extent. that they can be used without the nolen. But their method of use is also known to such an extent that e.g. everyone knows how to fasten and secure a splinter. This means that the locking device can be fixed in its position after replacement in an absolutely safe way, even if untrained personnel carry out the work.

Oppfinnelsen skal forklares nærmere ved eksempler under henvisning til tegningene, hvis fig. 1 viser et snitt gjennom låssiden av en bremsesperre, fig. 2 er et grunnriss som viser bremsebakkens bakside med låsesperren, fig. 3 viser en annen utforelse av sikringen, og fig. h viser et grunnriss til fig. 3» The invention shall be explained in more detail by means of examples with reference to the drawings, if fig. 1 shows a section through the lock side of a brake lock, fig. 2 is a ground plan showing the rear side of the brake pad with the locking device, fig. 3 shows another embodiment of the fuse, and fig. h shows a ground plan of fig. 3"

Ifolge fig. 1 og 2 har bremsebakken 11 en svalehaleforing 12 for innskyving av et bremsebelegg 13 som er utfort med en tilsvarende svalehalef oring lh. På denne måte er bremsebelegget 13 fast forbundet med bremsebakken 11. For å hindre bremsebelegget i å gli ut av foringen 12, må dette låses fast i foringen. Dette gjores ved hjelp av en gaffel-formet låsesperre 15, hvis ene arm 16 ligger i et spor 17 på tvers av bremsebakkens 11 lengdeakse og foran svalehalen lh hhv. dennes foring 12. Låsesperrens annen, korte arm 18 be-finner seg på bremsebakkens bakside og ligger an mot samme. De to armer 16 og 18 samt bremsebakken 11 er utfort med boriiger som er i flukt med hverandre for innskyving av en splint 19 som er omboyd som vist når låsesperren er i låsestilling. Den korte arm 18 er hensiktsmessig utfort noe fjærende og fast-klemmer dermed låsesperren. Splinten 19 utfores med fordel av rustfritt materiale, hvorved unngås at den ruster fast eller odelegg.es av korrosjon. According to fig. 1 and 2, the brake pad 11 has a dovetail lining 12 for inserting a brake lining 13 which is extended with a corresponding dovetail lining lh. In this way, the brake lining 13 is firmly connected to the brake pad 11. To prevent the brake lining from sliding out of the lining 12, this must be locked in the lining. This is done with the help of a fork-shaped locking device 15, one arm 16 of which lies in a groove 17 across the longitudinal axis of the brake pad 11 and in front of the dovetail lh and respectively. its liner 12. The other, short arm 18 of the locking device is located on the rear side of the brake pad and rests against it. The two arms 16 and 18 as well as the brake pad 11 are fitted with drill bits which are flush with each other for the insertion of a cotter pin 19 which is reshaped as shown when the locking device is in the locking position. The short arm 18 is expediently extended somewhat springily and thus firmly clamps the latch. The cotter pin 19 is advantageously lined with stainless material, thereby preventing it from rusting or falling apart from corrosion.

' Fig. 3 og k- viser en annen utforelse, hvor Fig. 3 and k- show another embodiment, where

de samme henvisningstall er brukt for de samme deler. Låsesperren er betegnet med 21 og består av et gaffelstykke med armer 22 og 23 som er omtrent like lange. Mellom disse to armer ligger bremsebakkens 11 ene ende. Den fremre arm 22 ligger foran svalehalen lh og stenger dennes foring 12, således at bremsebelegget 13 ikke kan komme ut av foringen 12. Låse- the same reference numbers are used for the same parts. The locking device is denoted by 21 and consists of a fork piece with arms 22 and 23 which are approximately the same length. Between these two arms is one end of the brake pad 11. The front arm 22 lies in front of the dovetail lh and closes its liner 12, so that the brake lining 13 cannot come out of the liner 12.

sperrens 21 bakre arm 23 er i nærheten av enden forsynt med en boring som er i flukt med en tilsvarende boring i bremsebakken 11. Denne boring er så forsynt med en gjenget bossing 2h med innergjenger. the rear arm 23 of the stopper 21 is provided near the end with a bore that is flush with a corresponding bore in the brake pad 11. This bore is then provided with a threaded boss 2h with internal threads.

Etter at låsesperren 21 er skjovet inn på bremsebakken, fores en hodeskrue 25 inn i de to boringer og skrues fast i bossingen 2h. Bossingen har en endeflens som griper inn i en tilsvarende uttagning i bremsebakken 11 og derfor ikke kan trekkes ut. Dermed er låsesperren 21 sikret mot utilsiktet åpning. Selve skruen er sikret med en sikrings-skive 26, således at den ikke kan skru seg los av seg selv. Som vist på fig. 3 °g ^ er sikringsskivens ene parti boyd rundt sperrens kant og et annet parti boyd opp langs skrue-hodets kant. Bossingen 2h og skruen 25 er hensiktsmessig utfort av rustfritt materiale og kan således ikke ruste eller ode-legges ved korrosjon eller ruste fast og' kan ikke åpnes på vanlig måte når belegget skal' skiftes ut. After the locking device 21 has been pushed onto the brake pad, a head screw 25 is inserted into the two bores and screwed into the bossing 2h. The bossing has an end flange which engages in a corresponding recess in the brake pad 11 and therefore cannot be pulled out. The locking device 21 is thus secured against accidental opening. The screw itself is secured with a securing disc 26, so that it cannot unscrew itself. As shown in fig. 3 °g ^ one part of the securing disc is built around the edge of the latch and another part is built up along the edge of the screw head. The bossing 2h and the screw 25 are suitably made of stainless material and thus cannot rust or be damaged by corrosion or rust solidly and cannot be opened in the usual way when the coating is to be replaced.

Claims

1. Brake shoe holder lock for disc brakes, especially for rail-running vehicles, where the dovetail lining for the brake linings is closed on one side, and where a locking device consists of two arms and grips from two sides around the brake pad's holding plate, with at least one arm as a lock being stored longitudinally displaceable in a groove transversely in front of the dovetail lining , and spring-loaded security elements retain the locking device, characterized in that where the security element is arranged, e.g. a cotter pin (19), a screw (25) or a clamping pin, which elements are arranged in a known manner vertically on the plane of the brake pad in corresponding bores in one of the arms (16, 18} 22, 23) of the locking device (15? 21).

2. Brake shoe holder lock according to claim 1, characterized in that the securing element in the form of a cotter pin (19) is arranged near the closed end of the locking device (15) and in a known manner passes through both arms of the locking device (16, 18) as well as through the brake shoe (11) , as the rear arm (18) of the locking device is significantly shorter. 3- Brake shoe holder lock according to claim 1, characterized in that the securing element in the form of a head screw (25) is arranged at the open end of the locking latch (21), and that there. in the brake pad (11) there is a threaded boss (2<*>+) for the screw (25).