CH232011A - Metal rim for bicycles. - Google Patents

Metal rim for bicycles.

Info

Publication number
CH232011A
CH232011A CH232011DA CH232011A CH 232011 A CH232011 A CH 232011A CH 232011D A CH232011D A CH 232011DA CH 232011 A CH232011 A CH 232011A
Authority
CH
Switzerland
Prior art keywords
bicycles
rim
metal rim
metal
circular
Prior art date
Application number
Other languages
French (fr)
Inventor
Anonyme Etablissements Societe
Original Assignee
Lyotard P Ets
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 Lyotard P Ets filed Critical Lyotard P Ets
Publication of CH232011A publication Critical patent/CH232011A/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B21/00—Rims
    • B60B21/06—Rims characterised by means for attaching spokes, i.e. spoke seats
    • B60B21/062—Rims characterised by means for attaching spokes, i.e. spoke seats for bicycles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B21/00—Rims
    • B60B21/02—Rims characterised by transverse section
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B21/00—Rims
    • B60B21/08—Rims characterised by having braking surfaces

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)

Description

  

  Jante métallique pour bicyclettes.    La     présente    invention a pour objet une  jante métallique pour     bicyclettes.     



  Dans le dessin annexé, donné     à,    titre  d'exemple:  La fig. 1 est une coupe transversale d'une  forme     d'exécution    de l'objet -de l'invention.  La fig. 2 en est une vue de face exté  rieure partielle.  



  La fig. a est une coupe transversale à  grande échelle.  



  Cette jante métallique est constituée par  une dame métallique a en acier ou tout autre  alliage approprié. Cette lame     métallique    a  est pliée transversalement en formant vers les  parties jointives b et c une surface circulaire  extérieure sensiblement plane s'incurvant  pour former latéralement des triangles d-e  disposés symétriquement par rapport au     plan     médian de la jante avec     des    faces planes  extérieures f disposées angulairement, ces.  faces planes f étant destinées     à,    servir de sur  faces de freinage aux patins de freins.  



  Il faut considérer que la jonction bout à  bout de la lame métallique a peut également  se faire sur la surface circulaire intérieure.    Ces surfaces circulaires     extérieure    et inté  rieure qui forment deux toiles centrales cir  culaires superposées étant rendues solidaires  par soudure, constituent une âme unique don  nant le maximum de rigidité transversale à  la jante.  



  Ainsi réalisée, cette jante à toiles cen  trales     superposées    et soudées donne le maxi  mum -de résistance tant transversale -que     ver-          ticaZe    tout en formant sur     ses.    faces exté  rieures des     surfaces        planes    de grandes dimen  sions pour permettre un bon freinage.



  Metal rim for bicycles. The present invention relates to a metal rim for bicycles.



  In the accompanying drawing, given by way of example: FIG. 1 is a cross section of one embodiment of the object of the invention. Fig. 2 is a partial exterior front view.



  Fig. a is a large-scale cross section.



  This metal rim consists of a metal rim made of steel or any other suitable alloy. This metal blade a is bent transversely, forming towards the adjoining parts b and c a substantially planar outer circular surface curving to form laterally triangles of arranged symmetrically with respect to the median plane of the rim with outer plane faces f arranged angularly, these. flat faces f being intended to serve as braking surfaces for the brake pads.



  It should be considered that the end-to-end junction of the metal blade a can also be made on the inner circular surface. These outer and inner circular surfaces, which form two superimposed circular central webs being made integral by welding, constitute a single core giving the maximum transverse rigidity to the rim.



  Thus produced, this rim with superimposed and welded central webs gives the maximum resistance both transverse and vertically while forming on its. large-dimension flat surfaces on the outside to allow good braking.

Claims (1)

REVENDICATION Jante métallique pour bicyclettes, carac- t6ris.ée'en ce qu'elle est formée par une lame pliée transversalement de façon à former deux triangles disposés symétriquement par rapport au plan médian de la jante et qui sont reliés par les toiles circulaires superpo sées qui sont soudées entre elles par leurs sur faces en, -contact en formant une âme circu laire. CLAIM Metal rim for bicycles, characterized in that it is formed by a blade folded transversely so as to form two triangles arranged symmetrically with respect to the median plane of the rim and which are connected by the superposed circular webs which are welded together by their surfaces in, -contact forming a circular core.
CH232011D 1941-11-19 1942-07-25 Metal rim for bicycles. CH232011A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR232011X 1941-11-19

Publications (1)

Publication Number Publication Date
CH232011A true CH232011A (en) 1944-04-30

Family

ID=8882468

Family Applications (1)

Application Number Title Priority Date Filing Date
CH232011D CH232011A (en) 1941-11-19 1942-07-25 Metal rim for bicycles.

Country Status (2)

Country Link
BE (1) BE446786A (en)
CH (1) CH232011A (en)

Also Published As

Publication number Publication date
BE446786A (en)

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