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IT1245451B - BICYCLE WHEEL RIM - Google Patents

BICYCLE WHEEL RIM

Info

Publication number
IT1245451B
IT1245451B ITTO910179A ITTO910179A IT1245451B IT 1245451 B IT1245451 B IT 1245451B IT TO910179 A ITTO910179 A IT TO910179A IT TO910179 A ITTO910179 A IT TO910179A IT 1245451 B IT1245451 B IT 1245451B
Authority
IT
Italy
Prior art keywords
section
active part
rim
pad
bicycle wheel
Prior art date
Application number
ITTO910179A
Other languages
Italian (it)
Inventor
Guido Michelotti
Original Assignee
Campagnolo Srl
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 Campagnolo Srl filed Critical Campagnolo Srl
Priority to ITTO910179A priority Critical patent/IT1245451B/en
Publication of ITTO910179A0 publication Critical patent/ITTO910179A0/en
Priority to FR9202862A priority patent/FR2673888A1/en
Priority to JP4054647A priority patent/JPH0565002A/en
Publication of ITTO910179A1 publication Critical patent/ITTO910179A1/en
Application granted granted Critical
Publication of IT1245451B publication Critical patent/IT1245451B/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
    • B60B21/08—Rims characterised by having braking surfaces

Landscapes

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

Abstract

Un cerchio (1) di ruota di bicicletta ha una sezione trasversale che comprende un tratto centrale (3, 4) rivolto verso l'asse del cerchio e due fianchi (5) che presentano ciascuno una parte attiva (13, 14) destinato ad essere impegnata da un pattino di frenatura (12). Tale parte attiva include un tratto ad arco di circonferenza (14) concavo verso l'esterno avente centro di curvatura che dista dall'asse di rotazione del cerchio di un raggio inferiore rispetto al raggio del punto mediano della parte attiva (13, 14) del fianco (5). Un secondo tratto (13) radialmente più esterno della parte attiva (13, 14) di ciascun fianco (5) della sezione trasversale del cerchio (1), ha forma di arco di circonferenza convesso verso l'esterno ed è raccordato con il primo tratto concavo (14). Questa conformazione del fianco (5) del cerchio (1) garantisce un consumo uniforme del pattino (12) ed una elevata pressione specifica di frenatura uniforme sul pattino.(Figura 3)A bicycle wheel rim (1) has a cross section which includes a central section (3, 4) facing the axis of the rim and two sides (5) which each have an active part (13, 14) intended to be engaged by a brake pad (12). This active part includes an arc section of circumference (14) concave towards the outside having a center of curvature which is less than the radius of the midpoint of the active part (13, 14) of the circle rotation axis. side (5). A second section (13) radially outermost of the active part (13, 14) of each side (5) of the cross section of the circle (1), has the shape of an arc of circumference convex towards the outside and is connected with the first section concave (14). This conformation of the side (5) of the rim (1) ensures uniform wear of the pad (12) and a high specific specific braking pressure on the pad. (Figure 3)

ITTO910179A 1991-03-13 1991-03-13 BICYCLE WHEEL RIM IT1245451B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
ITTO910179A IT1245451B (en) 1991-03-13 1991-03-13 BICYCLE WHEEL RIM
FR9202862A FR2673888A1 (en) 1991-03-13 1992-03-10 Bicycle wheel rim
JP4054647A JPH0565002A (en) 1991-03-13 1992-03-13 Rim of wheel for bicycle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITTO910179A IT1245451B (en) 1991-03-13 1991-03-13 BICYCLE WHEEL RIM

Publications (3)

Publication Number Publication Date
ITTO910179A0 ITTO910179A0 (en) 1991-03-13
ITTO910179A1 ITTO910179A1 (en) 1992-09-13
IT1245451B true IT1245451B (en) 1994-09-20

Family

ID=11409065

Family Applications (1)

Application Number Title Priority Date Filing Date
ITTO910179A IT1245451B (en) 1991-03-13 1991-03-13 BICYCLE WHEEL RIM

Country Status (3)

Country Link
JP (1) JPH0565002A (en)
FR (1) FR2673888A1 (en)
IT (1) IT1245451B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5499864A (en) * 1993-06-16 1996-03-19 Klein Bicycle Corporation Bicycle wheel rims
FR2727356A1 (en) * 1994-11-30 1996-05-31 Mavic Sa BICYCLE RIM AND WHEEL COMPRISING SUCH A RIM
ATE210563T1 (en) * 1996-01-12 2001-12-15 Salesas Sl Alliage Leger Et Se BICYCLE RIM MADE OF LIGHT METAL
ITUA20161779A1 (en) 2016-03-17 2017-09-17 Campagnolo Srl Bicycle wheel and related manufacturing process

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR584769A (en) * 1923-10-25 1925-02-13 Jantes Rigida Anciennes Usines Improvement in rims for cycles and motorcycles
FR627464A (en) * 1926-02-26 1927-10-05 Dunlop Rubber Co Improvements to vehicle wheel rims
GB284744A (en) * 1926-10-05 1928-02-06 Dunlop Rubber Co Improvements in or relating to rims

Also Published As

Publication number Publication date
JPH0565002A (en) 1993-03-19
FR2673888A1 (en) 1992-09-18
ITTO910179A0 (en) 1991-03-13
ITTO910179A1 (en) 1992-09-13

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19940331