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CH317747A - Method for attaching a collar to an axle for a bicycle rim brake and axle with collar manufactured according to this method - Google Patents

Method for attaching a collar to an axle for a bicycle rim brake and axle with collar manufactured according to this method

Info

Publication number
CH317747A
CH317747A CH317747DA CH317747A CH 317747 A CH317747 A CH 317747A CH 317747D A CH317747D A CH 317747DA CH 317747 A CH317747 A CH 317747A
Authority
CH
Switzerland
Prior art keywords
collar
axle
rim brake
attaching
bicycle rim
Prior art date
Application number
Other languages
German (de)
Inventor
Weber Albert
Original Assignee
Weinmann & Co Fahrradteilefabr
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Weinmann & Co Fahrradteilefabr filed Critical Weinmann & Co Fahrradteilefabr
Publication of CH317747A publication Critical patent/CH317747A/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21JFORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/06Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
    • B21J5/08Upsetting
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21KMAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00Making machine elements
    • B21K1/06Making machine elements axles or shafts
    • B21K1/10Making machine elements axles or shafts of cylindrical form
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21KMAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K25/00Uniting components to form integral members, e.g. turbine wheels and shafts, caulks with inserts, with or without shaping of the components
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62LBRAKES SPECIALLY ADAPTED FOR CYCLES
    • B62L1/00Brakes; Arrangements thereof
    • B62L1/02Brakes; Arrangements thereof in which cycle wheels are engaged by brake elements
    • B62L1/06Brakes; Arrangements thereof in which cycle wheels are engaged by brake elements the wheel rim being engaged
    • B62L1/10Brakes; Arrangements thereof in which cycle wheels are engaged by brake elements the wheel rim being engaged by the elements moving substantially parallel to the wheel axis
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62LBRAKES SPECIALLY ADAPTED FOR CYCLES
    • B62L1/00Brakes; Arrangements thereof
    • B62L1/02Brakes; Arrangements thereof in which cycle wheels are engaged by brake elements
    • B62L1/06Brakes; Arrangements thereof in which cycle wheels are engaged by brake elements the wheel rim being engaged
    • B62L1/10Brakes; Arrangements thereof in which cycle wheels are engaged by brake elements the wheel rim being engaged by the elements moving substantially parallel to the wheel axis
    • B62L1/12Brakes; Arrangements thereof in which cycle wheels are engaged by brake elements the wheel rim being engaged by the elements moving substantially parallel to the wheel axis the elements being mounted on levers pivotable about a common axis

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)
  • Forging (AREA)

Description

  

  Verfahren zum Anbringen eines Bundes auf einer Achse für eine     Fahrradfelgenbr     &      sei     und nach diesem Verfahren hergestellte Achse     mit    Bund    Die Erfindung bezieht sich auf ein Ver  fahren zum     Anbringen    eines Bundes auf einer  Achse für eine     Fahrradfelgenbremse.    Be  kannte Fahrradfelgenbremsen besitzen eine  Achse, auf der zwei Bügel gelagert sind, welche  die Bremsschuhe tragen, welche Achse ausser  dem zur Befestigung der Felgenbremse am  Fahrradrahmen dient. Diese Achse ist mit  einem Bund (Ring) versehen, der auf der Achse  unverrückbar befestigt     sein    muss.  



  Gebräuchliche derartige Achsen sind meist  mit zwei     ringsumlaufenden    Rillen versehen,  in welche die innere     Wandung    des Bundes       cingepresst    ist, wodurch ein verhältnismässig       ,guter    Sitz gewährleistet ist.     Immerhin    ist es  schon vielfach vorgekommen, dass ein solcher  Bund sich loslöste.  



  Um ein solches     Loslösen,    zu verhindern,  hat man bereits versucht, Achse mit Bund aus  einer vollen Stange auszudrehen. Diese Her  stellungsweise ist aber äusserst kostspielig.  



  Achsen, die mit dem Bund     in    einem Stück       @gegossen    sind, kommen wegen grosser Unzu  verlässigkeit nicht in Frage.  



  Nach dem erfindungsgemässen Verfahren  wird nun die Achse derart     spanlos    verformt,  vorzugsweise durch     Stauchen.,    dass auf ihr ein       ringsumlaufender    Wulst entsteht, auf den  der Bund so     aufgepresst    wird, dass der Wulst  in dessen Innenwandung eingreift. Dieses  Verfahren gewährleistet einen vollkommen  sicheren Sitz, ohne dass die Achse geschwächt    wird, wie es beim Anbringen von Rillen mit  nachfolgendem Einpressen des Bundes der  Fall ist.  



  An Hand der Zeichnung wird ein Aus  führungsbeispiel der Erfindung erklärt.  



  Die     Abb.1        zeigt    schaubildlich eine für ein  Fahrrad bestimmte Felgenbremse, deren Be  standteile     auseinandergezogen    dargestellt sind.       Abb.    2 zeigt die Achse mit Bund in Seiten  ansicht und     Abb.    3 dasselbe im Längsschnitt.  



  Auf der Achse 1 ist der     ringsumlaufende     Wulst 2     angestaucht,    über den der Bund 3  warm     aufgepresst    ist.  



  Achse 1 und Bund 2 bestehen selbstver  ständlich aus Metall, vorzugsweise aus Stahl.  Auf der Achse aus Stahl wird der Wulst  durch     Kaltstauchen    erzeugt, also durch     spaii-          lose    Formung; der Bund dagegen wird warm,  am besten im     rotglühenden    Zustand,     aufge-          presst.     



  Die dargestellte Achse 1 für Fahrradfel  genbremsen weist also einen für das Auge  unsichtbaren,     ringsumlaufenden        Wulst    2 auf,  über den der Bund 3 so     aufgepresst    ist, dass  der Wulst in seine Innenwandung eingreift.



  Method for attaching a collar on an axle for a bicycle rim brake and axle with collar produced according to this method. The invention relates to a method for attaching a collar on an axle for a bicycle rim brake. Be known bicycle rim brakes have an axis on which two brackets are mounted which carry the brake shoes, which axis is also used to attach the rim brake to the bicycle frame. This axle is provided with a collar (ring) which must be fixed immovably on the axle.



  Common axes of this type are usually provided with two circumferential grooves into which the inner wall of the collar is pressed, thereby ensuring a relatively good fit. After all, it has happened many times that such a covenant has broken away.



  In order to prevent such a loosening, attempts have already been made to unscrew the axis with the collar from a full rod. However, this production method is extremely expensive.



  Axles that are @cast in one piece with the collar are out of the question due to their high level of unreliability.



  According to the method according to the invention, the axis is now deformed without cutting, preferably by upsetting, that a circumferential bead is formed on it, onto which the collar is pressed so that the bead engages in its inner wall. This process ensures a completely secure fit without weakening the axle, as is the case when grooves are made and then the collar is pressed in.



  With reference to the drawing, an exemplary embodiment of the invention is explained.



  1 shows a diagram of a rim brake intended for a bicycle, the components of which are shown pulled apart. Fig. 2 shows the axis with collar in side view and Fig. 3 the same in longitudinal section.



  On the axis 1, the circumferential bead 2 is upset, over which the collar 3 is pressed hot.



  Axis 1 and collar 2 are of course made of metal, preferably steel. On the steel axle, the bead is produced by cold heading, that is, by random shaping; the collar, on the other hand, is pressed on warm, preferably in a red-hot state.



  The illustrated axle 1 for Fahrradfel genbremsen thus has an invisible to the eye, circumferential bead 2, over which the collar 3 is pressed so that the bead engages in its inner wall.

 

Claims (1)

PATENTANSPRUCH I Verfahren zum Anbringen eines Bundes auf einer Achse für eine Fahrradfelgenbremse, dadurch gekennzeichnet, dass die Achse span los derart verformt wird, dass auf ihr ein ringsumlaufender Wulst entsteht, auf den der Bund so aufgepresst wird, dass der Wulst in dessen Innenwandung eingreift.. UNTERANSPRUCH Verfahren -nach Patentanspruch I, da durch gekennzeichnet, dass eine Achse aus Stahl verwendet wird, auf der der Wulst durch galtstauchen erzeugt und der Bund warm aufgepresst wird. PATENT CLAIM I A method for attaching a collar to an axle for a bicycle rim brake, characterized in that the axle is deformed without cutting in such a way that a bead all around it is created on which the collar is pressed so that the bead engages in its inner wall. SUBCLAIM Method -according to patent claim I, characterized in that an axle made of steel is used, on which the bead is produced by hot stamping and the collar is pressed hot. PATENTANSPRUCH II Achse mit Bund für eine Fahrradfelgen bremse, hergestellt nach dem Verfahren gemäss Patentanspruch I. PATENT CLAIM II Axle with collar for a bicycle rim brake, manufactured according to the method according to claim I.
CH317747D 1953-11-22 1953-11-21 Method for attaching a collar to an axle for a bicycle rim brake and axle with collar manufactured according to this method CH317747A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEW12632A DE925207C (en) 1953-11-22 1953-11-22 Process for the production of an axle for bicycle rim brakes

Publications (1)

Publication Number Publication Date
CH317747A true CH317747A (en) 1956-11-30

Family

ID=7594856

Family Applications (1)

Application Number Title Priority Date Filing Date
CH317747D CH317747A (en) 1953-11-22 1953-11-21 Method for attaching a collar to an axle for a bicycle rim brake and axle with collar manufactured according to this method

Country Status (2)

Country Link
CH (1) CH317747A (en)
DE (1) DE925207C (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL255953A (en) * 1959-09-18
FR2317158A1 (en) * 1975-07-11 1977-02-04 Lauzier Rene IMPROVEMENT OF SHOE BRAKES FOR CYCLES AND SIMILAR
DE7628910U1 (en) * 1976-09-16 1977-01-13 Weinmann & Co Kg Fahrrad- Und Motorrad-Teilefabrik, 7700 Singen ELEMENT SET FOR A BICYCLE RIM BRAKE FASTENING BOLT
DE102022111695A1 (en) 2022-05-10 2023-11-16 Elringklinger Ag CONNECTION SYSTEM, ASSEMBLY WITH CONNECTION SYSTEM AND USE OF A CONNECTION SYSTEM AND BODY AND VEHICLE AND PRODUCTION METHOD THEREFOR

Also Published As

Publication number Publication date
DE925207C (en) 1955-03-14

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