BE856359A - DOUBLE ROW CIRCULAR BEARING OF BEARING ELEMENTS ESPECIALLY FOR BICYCLE STEERING GROUPS - Google Patents

DOUBLE ROW CIRCULAR BEARING OF BEARING ELEMENTS ESPECIALLY FOR BICYCLE STEERING GROUPS

Info

Publication number
BE856359A
BE856359A BE178986A BE178986A BE856359A BE 856359 A BE856359 A BE 856359A BE 178986 A BE178986 A BE 178986A BE 178986 A BE178986 A BE 178986A BE 856359 A BE856359 A BE 856359A
Authority
BE
Belgium
Prior art keywords
bearing
double row
bicycle
bicycle steering
row circular
Prior art date
Application number
BE178986A
Other languages
French (fr)
Inventor
T Campagnolo
Original Assignee
Campagnolo Tullio
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 Tullio filed Critical Campagnolo Tullio
Publication of BE856359A publication Critical patent/BE856359A/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62KCYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K21/00Steering devices
    • B62K21/06Bearings specially adapted for steering heads
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/14Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
    • F16C19/18Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2326/00Articles relating to transporting
    • F16C2326/20Land vehicles
    • F16C2326/26Bicycle steering or suspension

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)

Description

       

  Palier à double rangée circulaire d'éléments de roulement notamment pour groupes de direction de bicyclettes.

  
Il est bien connu que, généralement, l'accouplement tournant ou palier de roulement entre.la fourche de la roue avant d'une

  
 <EMI ID=1.1> 

  
de direction) du cadre de la même bicyclette (à l'intérieur duquel tourne l'arbre qui relie le guidon à la fourche) est réalisé au moyen d'une rangée circulaire de billes interposées dans des logements latéraux opposés prévus dans un collet solidaire de la fourche et dans la calotte dune douille solidaire

  
 <EMI ID=2.1> 

  
roulent dans lesdits logements en se maintenant en contact avec ceux-ci des points diamétralement opposés.

  
Etant donné la charge considérable qui pèse toujours sur ce

  
type d'accouplement tournant pendant l'utilisation de la bicyclette, laquelle charge peut prendre, dans des cas particuliers, une ampleur exceptionnelle (qu'il suffise de pensera une charge

  
 <EMI ID=3.1> 

  
couramment) cet accouplement a toujours constitué un point faible dans la fabrication des bicyclettes et a toujours demandé le maximum de soins et d'attentions (même en cequi concerne les matériaux employés, avec évidemment des incidences dans les

  
prix de revient).

  
La présente invention concerne, en conséquence un type d'accouplement tournant au palier de roulement perfectionné pour directions de bicyclettes qui puisse solutionner d'une manière rationnelle les problèmes déjà exposés.

  
Suivant la présente invention, cet accouplement est caractérisé par le fait que le collet solidaire de la fourche est façonné, dans sa partie supérieure, en forme d'anneau à arête circulaire, avec lequel coopèrent deux rangées concentriques de billes logées dans la calotte de l'extrémité élargie d'une douille solidaire du tube de direction.

  
Grâce à cette disposition, toutes les billes de chaque rangée travaillent sur trois points et, plus précisément par contact d'un côté avec l'anneau à arête et de l'autre côté contre la paroi latérale et la paroi supérieure de la calotte. La charge est ainsi répartie d'une manière beaucoup plus uniforme et rationnelle que par le passé et, quelques contraignantes que

  
les conditions d'utilisation de la bicyclette puissent être, l'accouplement tournant de la direction ne constitutera plus

  
un point faible et sujet à complications.

  
L'invention sera maintenant décrite plus en détail, uniquement à titre d'exemple, en regard des dessins annexés

  
sur lesquels :
la figure 1 montre une vue en coupe partielle d'un accouplement de direction classique ;  la figure 2 représente d'une manière analogue à la figure 1 l'accouplement tournant selon l'invention appliqué à la direction d'une bicyclette ; la figure 3 montre une vue en coupe et à une échelle agrandie d'un détail de l'accouplement de la figure 2.

  
Dans la figure 1, l'accouplement tournant classique comporte un collet 1 solidaire de la fourche F d'une bicyclette, une calotte 2 prévue à l'extrémité d'une douille 3 solidaire du

  
tube de direction C assujetti au ccadre de la même bicyclette

  
et une rangée circulaire de billes 4 interposées dans des logements convenablement prévus dans le collet 1 et dans la calotte 2, prévue à l'extrémité d'une douille 3 solidaire du

  
tube de direction C assujetti au cadre de la-même bicyclette

  
et une rangée circulaire de billes 4 interposées dans des logements convenablement prévus dans le collet 1 et dans la calotte

  
2. Comme l'on peut s'en rendre compte,'les billes 4 roulent en restant en contact avec les dits logements par des points diamétralement opposées a' et a". 

  
Par contre, selon l'invention (figures 2 et 3), on rend

  
 <EMI ID=4.1> 

  
un élargissement annulaire comportant une arête -12 constituée

  
 <EMI ID=5.1> 

  
Il va de soi que bien qu'ayant été conçue et décrite pour des

  
 <EMI ID=6.1> 

  
 <EMI ID=7.1> 

  
là même où se présenteraient les mêmes exigences qui ont stimulé sa conception. 

  
&#65533;-

  
 <EMI ID=8.1> 

  
1. Accouplement tournant ou palier de roulement à double rangée circulaire de billes entre parties réciproquement

  
 <EMI ID=9.1> 

  
caractérisé en ce qu'un collet solidaire de la fourche est façonné, dans sa partie supérieure, en forme d'anneau à arête, avec lequel coopèrent deux rangées concentriques de billes logées dans la calotte de l'extrémité élargie d'une douille solidaire du tube de direction assujetti au cadre.



  Double circular row bearing of rolling elements, particularly for bicycle steering groups.

  
It is well known that, generally, the rotating coupling or rolling bearing between the fork of the front wheel of a

  
 <EMI ID = 1.1>

  
direction) of the frame of the same bicycle (inside which rotates the shaft which connects the handlebars to the fork) is made by means of a circular row of balls interposed in opposite side housings provided in a collar integral with the fork and in the cap of an integral socket

  
 <EMI ID = 2.1>

  
roll in said housings while keeping in contact with them diametrically opposed points.

  
Given the considerable burden that still weighs on this

  
type of coupling rotating during the use of the bicycle, which load can take, in particular cases, an exceptional magnitude (that it is enough to think a load

  
 <EMI ID = 3.1>

  
commonly) this coupling has always been a weak point in the manufacture of bicycles and has always required the maximum of care and attention (even with regard to the materials used, obviously with consequences in the

  
cost price).

  
The present invention therefore relates to an improved type of rotating coupling to the rolling bearing for bicycle steering which can rationally solve the problems already explained.

  
According to the present invention, this coupling is characterized by the fact that the collar integral with the fork is shaped, in its upper part, in the form of a ring with a circular ridge, with which two concentric rows of balls co-operate in the cap of the fork. 'enlarged end of a socket integral with the steering tube.

  
Thanks to this arrangement, all the balls of each row work at three points and, more precisely by contact on one side with the ridge ring and on the other side against the side wall and the upper wall of the cap. The load is thus distributed in a much more uniform and rational way than in the past and, some restrictive than

  
conditions of use of the bicycle may be, the rotating steering coupling will no longer constitute

  
a weak point and prone to complications.

  
The invention will now be described in more detail, purely by way of example, with reference to the accompanying drawings.

  
on which ones :
Figure 1 shows a partial sectional view of a conventional steering coupling; FIG. 2 represents, in a manner analogous to FIG. 1, the rotary coupling according to the invention applied to the steering of a bicycle; Figure 3 shows a sectional view on an enlarged scale of a detail of the coupling of Figure 2.

  
In Figure 1, the conventional rotating coupling comprises a collar 1 integral with the fork F of a bicycle, a cap 2 provided at the end of a socket 3 integral with the

  
C head tube secured to the frame of the same bicycle

  
and a circular row of balls 4 interposed in housings suitably provided in the collar 1 and in the cap 2, provided at the end of a sleeve 3 secured to the

  
C head tube secured to the frame of the same bicycle

  
and a circular row of balls 4 interposed in housings suitably provided in the collar 1 and in the cap

  
2. As can be seen, 'the balls 4 roll while remaining in contact with said housings by diametrically opposed points a' and a ".

  
On the other hand, according to the invention (Figures 2 and 3), we make

  
 <EMI ID = 4.1>

  
an annular widening comprising an edge -12 formed

  
 <EMI ID = 5.1>

  
It goes without saying that although it has been designed and described for

  
 <EMI ID = 6.1>

  
 <EMI ID = 7.1>

  
even where the same requirements would present themselves which stimulated its conception.

  
&#65533; -

  
 <EMI ID = 8.1>

  
1. Rotating coupling or rolling bearing with double circular row of balls between reciprocally parts

  
 <EMI ID = 9.1>

  
characterized in that a collar integral with the fork is shaped, in its upper part, in the form of a ridge ring, with which cooperate two concentric rows of balls housed in the cap of the enlarged end of a sleeve integral with the head tube attached to the frame.


    

Claims (1)

2. accouplement tournant selon la revendication 1, caractérisé en ce que le dit anneau à arête présente des surfaces coniques. 2. rotary coupling according to claim 1, characterized in that said ridge ring has conical surfaces.
BE178986A 1976-07-05 1977-07-01 DOUBLE ROW CIRCULAR BEARING OF BEARING ELEMENTS ESPECIALLY FOR BICYCLE STEERING GROUPS BE856359A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2173276 1976-07-05

Publications (1)

Publication Number Publication Date
BE856359A true BE856359A (en) 1977-10-31

Family

ID=11186075

Family Applications (1)

Application Number Title Priority Date Filing Date
BE178986A BE856359A (en) 1976-07-05 1977-07-01 DOUBLE ROW CIRCULAR BEARING OF BEARING ELEMENTS ESPECIALLY FOR BICYCLE STEERING GROUPS

Country Status (4)

Country Link
BE (1) BE856359A (en)
ES (1) ES229719Y (en)
FR (1) FR2357774A1 (en)
GB (1) GB1576283A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4433852A (en) * 1981-02-12 1984-02-28 Hon Corporation Foldable and portable vehicle

Also Published As

Publication number Publication date
ES229719Y (en) 1978-04-16
ES229719U (en) 1977-12-16
FR2357774B3 (en) 1980-04-25
FR2357774A1 (en) 1978-02-03
GB1576283A (en) 1980-10-08

Similar Documents

Publication Publication Date Title
FR2544437A1 (en) LOCKING DIFFERENTIAL COMPRISING A LOCKING CLUTCH ARRANGED IN A DIFFERENTIAL HOUSING AND WHICH IS ACTUATED BY AN EXTERNAL MANEUVERING MEMBER OF THE AXIAL CYLINDER AND PISTON TYPE, ARRANGED IN AN AXLE HOUSING
US5433306A (en) Hub assembly for a bicycle
FR2369147A1 (en) MOTORCYCLE FRAME
FR2527542A1 (en) PEDAL MECHANISM FOR BICYCLE
US6431575B2 (en) Steering bearing assembly for a bicycle
FR2599306A1 (en) HOMOCINETIC BEARING-SEAL UNIT, ESPECIALLY FOR VEHICLE WHEELS
US5291797A (en) Upper steering assembly
FR2744502A1 (en) BALL HOMOCINETIC TRANSMISSION SEAL
BE856359A (en) DOUBLE ROW CIRCULAR BEARING OF BEARING ELEMENTS ESPECIALLY FOR BICYCLE STEERING GROUPS
FR2581295A1 (en) Improved finger-ring
EP0348315A1 (en) Front derailler for bicycles or similar vehicles
US4328882A (en) Rear hub for a bicycle
FR2496793A2 (en) UNIVERSAL JOINT FOR ARTICULATED TREE
FR2571105A1 (en) FIXING FOR ROTATION SOLIDARIZATION OF A MECHANICAL COMPONENT
US5024121A (en) Hub assembly of a bicycle and the like
FR2928618A1 (en) BICYCLE BEARINGS
EP0695984B1 (en) Search/Scan Knob (&#34;Jog-Shuttle&#34;) for electric or electronic Appliances
BE1006669A6 (en) Cage for bearing and rolling contact bearing equipped with such a cage.
FR2616352A1 (en) Rolling toy with composite wheels
FR2514717A3 (en) BICYCLE EQUIPMENT WITH MULTIPLICATION RAYS AND AERODYNAMIC PEDAL LEVER CRANKS
FR2772869A3 (en) Ball valve
FR2515117A1 (en) WHEEL MOUNTING DEVICE, PARTICULARLY FOR A STEERING WHEEL AND MOTOR VEHICLE
RU2031042C1 (en) Device for connecting bicycle steering column with front fork stem
EP0000974B1 (en) Motorised roll for supporting and driving a rotatable cyclindrical body, having a horizontal or slightly inclined axis
FR2506412A1 (en) FREE WHEEL HUB FOR BICYCLES AND SIMILAR VEHICLES