EP1802518A1 - Dispositif d'etancheite, palier de pedalier et moyeu de bicyclette comprenant le dispositif d'etancheite - Google Patents

Dispositif d'etancheite, palier de pedalier et moyeu de bicyclette comprenant le dispositif d'etancheite

Info

Publication number
EP1802518A1
EP1802518A1 EP05783983A EP05783983A EP1802518A1 EP 1802518 A1 EP1802518 A1 EP 1802518A1 EP 05783983 A EP05783983 A EP 05783983A EP 05783983 A EP05783983 A EP 05783983A EP 1802518 A1 EP1802518 A1 EP 1802518A1
Authority
EP
European Patent Office
Prior art keywords
sealing
arrangement according
sealing arrangement
shape
ring
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP05783983A
Other languages
German (de)
English (en)
Inventor
Jesko-Henning Tanke
Bernd Stephan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SKF AB
Original Assignee
SKF AB
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 SKF AB filed Critical SKF AB
Publication of EP1802518A1 publication Critical patent/EP1802518A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/49—Bearings with both balls and rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B27/00—Hubs
    • B60B27/0005—Hubs with ball bearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B27/00—Hubs
    • B60B27/001—Hubs with roller-bearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B27/00—Hubs
    • B60B27/0073—Hubs characterised by sealing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B27/00—Hubs
    • B60B27/02—Hubs adapted to be rotatably arranged on axle
    • B60B27/023—Hubs adapted to be rotatably arranged on axle specially adapted for bicycles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M3/00—Construction of cranks operated by hand or foot
    • B62M3/003—Combination of crank axles and bearings housed in the bottom bracket
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72—Sealings
    • F16C33/76—Sealings of ball or roller bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2326/00—Articles relating to transporting
    • F16C2326/20—Land vehicles
    • F16C2326/28—Bicycle propulsion, e.g. crankshaft and its support
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/21—Elements
    • Y10T74/2164—Cranks and pedals

Definitions

  • the invention relates to a sealing arrangement of a bicycle and a sans ⁇ bottom bracket and a bicycle hub with the seal assembly.
  • An object of the invention is to provide an improved sealing arrangement of a bicycle, which in particular has a sufficient sealing effect, even if dirt and / or moisture particles penetrate with a comparatively high pressure in the direction of the seal arrangement.
  • a sealing arrangement of a bicycle has the following features:
  • a first element extending in an axial direction
  • a space to be sealed extending between the elements is closed in the area of at least one axial end section of one of the elements with a sealing ring substantially arranged between the elements
  • the sealing ring is attached to the second element and has a sealing lip which sealingly bears against a radially extending, annularly circumferential surface of the first element.
  • the fact that the sealing lip sealingly abuts on the radially occidental circumferential surface of the first element is particularly at a penetration of moisture and / or dirt particles under increased pressure in the direction of the sealing ring, for example when cleaning the bike with a high-pressure cleaner, the sealing lip pressed as desired stronger, thus achieving an increase in their sealing effect, whereas during normal operation of the bicycle, the sealing lip with a lower, but nevertheless for normal driving a good sealing effect felicit ⁇ the pressure is applied, the low friction and thus causes low wear of the sealing lip and thus a long life of the sealing ring.
  • the sealing arrangement comprises a ring-like element which is connected upstream of the sealing ring and connected to the first element, which with its outer lateral surface forms and arranges a narrow hollow-cylinder-like gap in the radial direction to an opposing inner lateral surface of the second element.
  • a Vorschalt- sealing function is advantageously provided for the sealing ring, so that a direct and unchecked penetration of dirt and / or moisture particles in particular towards the sealing lip, for example when cleaning the bike with a high pressure cleaner, is prevented.
  • the sealing ring is provided with an annular spring.
  • FIG. 2 shows an enlarged detail of FIG. 1 in the region of the sealing arrangement
  • FIG. 3 shows a longitudinal section through an upper half of a sealing ring, which is provided with an annular spring.
  • FIG. 1 shows, as an exemplary embodiment of the invention, a longitudinal section through a bicycle pedal bearing.
  • the bicycle pedal bearing comprises a substantially hollow cylinder-like shaft 10 and an outer sleeve 20 which surrounds the shaft 10 in such a way that the two axial end regions of the shaft 10 protrude beyond an axial extent of the outer sleeve 20.
  • the shaft 10 is rotatably supported in the outer sleeve 20 via two rolling bearings.
  • One of the bearings is designed as a cylindrical roller bearing, wherein the cylindrical rollers 32 are guided in a cage 34 and the shaft 10 an inner raceway and the outer sleeve 20 form an outer race of the cylindrical roller bearing.
  • the other of the roller bearings is formed as a ball bearing, wherein the balls 42 are also guided in a cage 44 and just as in Zylinder ⁇ roller bearings, the shaft 10 an inner raceway and the outer sleeve 20 form an outer raceway for the balls 42.
  • FIG. 2 shows an enlarged detail of the region designated by Z in FIG. 1, the structure and mode of operation of the auxiliary ring 50 and of the sealing ring 60 being described below by way of example for the ball bearing side shown in FIG. 2, but correspondingly also applies to the cylindrical roller bearing side.
  • the sealing ring 60 is formed with a substantially C-shaped longitudinal section profile, wherein the radially inner end of the C-shape for forming a substantially V-shaped Lijns ⁇ sectional profile having sealing lip 62 is continued.
  • the sealing ring 60 is installed with the back side of the C-shape from the outside and pressed into a correspondingly shaped axial end region of the outer sleeve 20 in the dismisshül ⁇ se 20.
  • the auxiliary ring 50 has approximately an L-shaped longitudinal sectional profile and is pressed with one of the legs of the L-shape ahead of the outside of the shaft 10, so that the corner of the L-shape rests axially on the outside of the shaft 10.
  • the auxiliary ring 50 is made of aluminum, for example.
  • the entire bottom bracket arrangement is designed in such a way that, when properly assembled, the sealing lip 62 only sealingly contacts a substantially radially extending end face of the auxiliary ring 50 at the free end of its V-shape. Furthermore, the tip of the V-shape of the sealing lip 62 is spaced apart from a substantially axially extending lateral surface of the auxiliary ring 50 at a small distance.
  • the auxiliary rings 50 are designed in such a way that they form a narrow hollow-cylinder-like gap relative to the outer sleeve 20 or to an intermediate sleeve 25 mounted on the outer sleeve 20, so that the auxiliary rings 50 act as a kind of labyrinth-like ballast seals for the sealing rings 60.
  • an immediate and unbraked penetration of dirt and / or moisture particles in the direction of the sealing rings 60 is prevented due to the Vorschaltdichtungsfunktion of the auxiliary rings 50.
  • the sealing rings 60 due to the design of the sealing rings 60, the water and / or dirt particles penetrating into the sealing rings 60 advantageously have the effect of increasing the sealing effect by pressing the sealing lips 60 against said end faces of the auxiliary rings 50, so that the space to be sealed also under this load is safely protected against penetration of moisture and / or dirt.
  • the sealing ring 60 is further designed in several parts.
  • it comprises a perforated disc-like support body 64 forming the back of the C-shape, on which an outer and an inner elastomer part 66 and 68 are vulcanized.
  • the outer elastomeric member 66 together with the Support body 64 for fixing to the corresponding shape of the outer sleeve 20 is provided.
  • the inner elastomeric member 68 is designed to form the V-shaped sealing lip 62 and further comprises a circumferentially circumferential, radially inwardly projecting projection 63 which as well as the tip of the V-shape of the sealing lip 62 as intended to the opposite lateral surface of the auxiliary ring 50 spaced is, and for the at least partially filled with lubricating grease sealed space fulfills a Fettschhalte- or -schreib tonefunktion.
  • the sealing ring may also be formed entirely of PTFE.
  • FIG. 3 shows, as a further embodiment of the invention, a sealing ring 60 ', which is additionally provided with an annular spring 70 opposite the sealing ring 60 of FIGS. 1 and 2, inserted in the channel formed by the V-shape of the sealing lip 62' is.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Rolling Contact Bearings (AREA)
  • Sealing Of Bearings (AREA)
  • Sealing Devices (AREA)
  • Sealing With Elastic Sealing Lips (AREA)

Abstract

L'invention concerne un dispositif de garniture d'un vélo présentant les caractéristiques suivantes : un premier élément s'étendant dans le sens axial, un second élément s'étendant dans le sens axial, qui comprend, en partie, le premier élément, les éléments peuvent être disposés de manière à pouvoir tourner les uns contre les autres, une chambre qui peut être étanche et qui s'étend entre les deux éléments est placée au moins sur une extrémité axiale d'un des éléments comprenant au moins un anneau d'étanchéité disposé sensiblement entre les deux éléments, et l'anneau d'étanchéité est fixé au second élément et présente une lèvre d'étanchéité, qui est disposée de manière étanche sur une face sous forme d'anneau, s'étendant dans le sens radial. Ledit dispositif comprend également un palier de pédalier pour bicyclette et/ou un moyeu de bicyclette comprenant ledit dispositif d'étanchéité.
EP05783983A 2004-09-15 2005-08-05 Dispositif d'etancheite, palier de pedalier et moyeu de bicyclette comprenant le dispositif d'etancheite Withdrawn EP1802518A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004045014A DE102004045014B4 (de) 2004-09-15 2004-09-15 Tretlager- oder Radnabenlageranordnung
PCT/EP2005/008518 WO2006029673A1 (fr) 2004-09-15 2005-08-05 Dispositif d'etancheite, palier de pedalier et moyeu de bicyclette comprenant le dispositif d'etancheite

Publications (1)

Publication Number Publication Date
EP1802518A1 true EP1802518A1 (fr) 2007-07-04

Family

ID=35447859

Family Applications (2)

Application Number Title Priority Date Filing Date
EP05783983A Withdrawn EP1802518A1 (fr) 2004-09-15 2005-08-05 Dispositif d'etancheite, palier de pedalier et moyeu de bicyclette comprenant le dispositif d'etancheite
EP05792265A Withdrawn EP1794006A1 (fr) 2004-09-15 2005-09-09 Ensemble palier de pedalier ou palier de moyeu

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP05792265A Withdrawn EP1794006A1 (fr) 2004-09-15 2005-09-09 Ensemble palier de pedalier ou palier de moyeu

Country Status (4)

Country Link
US (2) US20070296155A1 (fr)
EP (2) EP1802518A1 (fr)
DE (1) DE102004045014B4 (fr)
WO (2) WO2006029673A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE471274T1 (de) * 2005-12-02 2010-07-15 Campagnolo Srl Kurbeleinheit für das tretlager, die antriebswelle und die tretpedalkurbel eines fahrrads
ATE524374T1 (de) * 2006-02-20 2011-09-15 Campagnolo Srl Fahrradtretlager
ATE495090T1 (de) * 2006-03-03 2011-01-15 Campagnolo Srl Fahrradtretkurbellager-anordnung und ein adapter für eine derartige anordnung
JP2007297040A (ja) 2006-05-04 2007-11-15 Campagnolo Spa 自転車のクランクアーム・アセンブリ
ITMI20070406U1 (it) * 2007-12-05 2009-06-06 Campagnolo Srl Assieme di movimento centrale di bicicletta ed albero per un tale assieme
EP2110301B1 (fr) * 2008-04-17 2014-12-24 CAMPAGNOLO S.r.l. Ensemble de composants de bicyclette rotatifs et bicyclette comportant un tel assemblage
DE102008029088A1 (de) 2008-06-20 2009-12-24 Schaeffler Kg Tretlager für ein Fahrrad
AR076221A1 (es) * 2009-04-09 2011-05-26 Astrazeneca Ab Derivado de pirazol [4,5-e] pirimidina y su uso para tratar diabetes y obesidad
DE102009039073A1 (de) 2009-08-27 2011-03-03 Aktiebolaget Skf Bauelement einer Wälzlagerung
CN103991333B (zh) * 2013-02-20 2017-02-15 雅瑟斯精密机械(江苏)有限公司 自行车花鼓
EP3501960B1 (fr) 2017-12-22 2021-11-10 Campagnolo S.r.l. Pédalier de bicyclette
US20220411011A1 (en) * 2021-06-28 2022-12-29 Fox Factory, Inc. Seal structures

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DE3302267A1 (de) * 1983-01-25 1984-07-26 Götz Prof. Dr.-Ing. 7080 Aalen Halach Naben fuer fahrraeder
JPH0610584A (ja) * 1992-06-24 1994-01-18 Mitsubishi Materials Corp ローラーカッタ

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JPS5868553A (ja) * 1981-10-15 1983-04-23 Arai Pump Mfg Co Ltd 軸封装置
DE3302267A1 (de) * 1983-01-25 1984-07-26 Götz Prof. Dr.-Ing. 7080 Aalen Halach Naben fuer fahrraeder
JPH0610584A (ja) * 1992-06-24 1994-01-18 Mitsubishi Materials Corp ローラーカッタ

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Title
See also references of WO2006029673A1 *

Also Published As

Publication number Publication date
WO2006029673A1 (fr) 2006-03-23
US20080124018A1 (en) 2008-05-29
DE102004045014A1 (de) 2006-03-30
EP1794006A1 (fr) 2007-06-13
US20070296155A1 (en) 2007-12-27
WO2006029766A1 (fr) 2006-03-23
DE102004045014B4 (de) 2007-06-28

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