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
Links
- 239000002184 metal Substances 0.000 title claims description 8
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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)
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) |
-
0
- BE BE446786D patent/BE446786A/xx unknown
-
1942
- 1942-07-25 CH CH232011D patent/CH232011A/en unknown
Also Published As
Publication number | Publication date |
---|---|
BE446786A (en) |
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