EP2864653A1 - Cuvette de roulement pour palier - Google Patents

Cuvette de roulement pour palier

Info

Publication number
EP2864653A1
EP2864653A1 EP13739951.5A EP13739951A EP2864653A1 EP 2864653 A1 EP2864653 A1 EP 2864653A1 EP 13739951 A EP13739951 A EP 13739951A EP 2864653 A1 EP2864653 A1 EP 2864653A1
Authority
EP
European Patent Office
Prior art keywords
bearing
bearing shell
shell
base body
pockets
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Withdrawn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
EP13739951.5A
Other languages
German (de)
English (en)
Inventor
Frank Weidner
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.)
Acros Sport GmbH
Original Assignee
Acros Sport GmbH
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 Acros Sport GmbH filed Critical Acros Sport GmbH
Publication of EP2864653A1 publication Critical patent/EP2864653A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K21/00—Steering devices
    • B62K21/06—Bearings specially adapted for steering heads
    • 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
    • F16C25/00—Bearings for exclusively rotary movement adjustable for wear or play
    • F16C25/06—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
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
    • F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
    • F16C35/07—Fixing them on the shaft or housing with interposition of an element
    • F16C35/077—Fixing them on the shaft or housing with interposition of an element between housing and outer race ring
    • 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
    • F16C2204/00—Metallic materials; Alloys
    • F16C2204/20—Alloys based on aluminium
    • 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
    • F16C2208/00—Plastics; Synthetic resins, e.g. rubbers
    • F16C2208/20—Thermoplastic resins
    • F16C2208/76—Polyolefins, e.g. polyproylene [PP]
    • 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
    • F16C2326/26—Bicycle steering or suspension

Definitions

  • the invention relates to a bearing shell for receiving a rolling bearing or ball bearing, a bearing for rotatably connecting two parts comprising this bearing shell and a two-wheeled vehicle with at least one such bearing.
  • the rotatable connection of front fork and handlebar with the frame of a two-wheeled vehicle is realized by a so-called control head.
  • This consists of an upper and a lower bearing unit, wherein usually the inner ring of the bearing unit with the shaft tube of the fork and the outer ring with the Steuerko frohr, which is part of the frame of the two-wheeled vehicle, are firmly connected.
  • the outer rings are usually inserted in the steering head tube or in adapter shells and adjusted by means of bevels (usually 36 ° or 45 ° angle) on the inner and outer rings by means of an expander screw via the inner rings without play.
  • the clearance between the outer ring of the bearing and the bearing shell is often several tenths of a millimeter. Due to the high brake forces of disc brakes, front forks deform and pass on these high forces via the bearing outer rings to the frame. Due to the high game tilt the bearings and it can come to strong creaking sounds to loosen the front fork.
  • the invention now relates to the bearing shell of the Steuerkopf- camp, which usually consists of a solid disc.
  • the disadvantage of these conventional bearing shells is that they pass on deviations of the surrounding geometry directly to the bearing. This results in early bearing damage and inaccuracies in bearing positioning immediately after assembly.
  • a bearing shell for receiving a roller bearing or ball bearing with a circular cylindrical base body in which a roller bearing or ball bearing is receivable, and the body consists of a flowable material which bears under load of the bearing shell clamped against the rolling bearing, so that this is held against rotation in the body.
  • An essential point of the solution according to the invention consists in the fact that, by using a flowable material for the main body, any dimensional inaccuracies which may be present are subsequently compensated, at the same time producing a stable connection to the rolling bearing or ball bearing. The production of such a basic body is equally easier and cheaper than was previously possible in the prior art.
  • tolerance fluctuations for example of a bearing tube
  • This Sachtverhalt is due to the flow of the material and the elastic deformation.
  • the bearing ring encloses the bearing ideally complete, ensures a uniform force distribution and thus for a uniform load on a bearing outer ring.
  • the inner jacket thereof in a first preferred embodiment, provision is then made for the inner jacket thereof to form a clamping profile for the rolling bearing, which has sections of recesses formed thereon.
  • the flow behavior of the bearing shell material is significantly supported by weakening a contact surface to the recorded in or on the bearing shell bearings or ball bearings.
  • a bearing shell which is thus elastic, so to speak hollowed out, is similar in consequence to fluctuations in the resistance, e.g. a bearing tube, because it adapts to the dimensional and form deviations of a shaft tube to a certain extent.
  • the clamping profile has pockets or grooves.
  • defined alternative spaces for the material can be formed, which allow a better calcu- lierbare clamping action, depending on the specific requirements, allows.
  • a corresponding adaptability of the material is thus realized by the pockets of the bearing shell are freed at the points of contact of the adjacent material between the bearing shell and bearings or ball bearings, which lead to an elastic deformation of the webs, which bear against the roller bearing or ball bearings.
  • the pockets and / or grooves are made round and / or square. In particular, this allows easy production of these pockets and / or grooves by either mechanical post-processing or by a single original injection molding process.
  • the pockets and / or the grooves extend in the axial and / or radial direction of the base body.
  • a targeted influencing of the flow deformation of the material can be made depending on the specific requirement. It is therefore the provision of specific bearings, e.g. For steering head bearings for city bikes, trekking bikes or mountain bikes possible, which are all subject to individual requirements.
  • the pockets and / or grooves extend on an inner and / or outer shell of the base body. This also makes it possible to selectively influence the flow deformation of the material depending on the specific requirement, and in particular in connection with the corresponding orientation of the pockets and / or the grooves can be varied as desired.
  • a corresponding deformation of the pockets and / or grooves on an outer shell of the base body can while equally cause an inwardly directed deformation, as on the inner surface of the body extending pockets and / or grooves.
  • the pockets and / or the grooves extend over the entire base body. This results in particular a continuous escape space for the flow-deforming material, which allows an increased clamping effect over a larger area, and also allows a much simpler production of the bearing shell in a single injection molding process step.
  • At least one of its axial ends is formed a radially inwardly directed support surface for the rolling bearing. This creates an additional support for the rolling bearing or ball bearings in the axial direction, in addition to the radial Verklemmung in the body.
  • a correspondingly aligned support surface can also be formed selectively to achieve a corresponding weight saving, as they are e.g. just in racing is required.
  • the support surface is formed like a plate circumferentially.
  • there is a circumferential good support of the rolling bearing which is also easy to manufacture, e.g. in a single original injection molding process.
  • the inventive bearing shell it is provided that a transition between the inner shell of the base body and the support surface the Grundkör he executed reinforced. A corresponding there corresponding flow deformation of the material is thus limited at this point in order not to weaken the support for the rolling bearing on the support surface. This ensures, in particular, a consistently stable bearing of the rolling bearing, even when compensating for larger tolerance variations.
  • a stop face directed radially outwards is formed on at least one of its axial ends.
  • the base body is made of a thermoplastic and / or foam-extruded plastic material.
  • a corresponding thermoplastic material ensures an always stable connection between the bearing shell and bearings or ball bearings, which works equally safe and reliable even with temperature fluctuations.
  • a foam-extruded plastic material in particular allows for a lower weight of the bearing shell, as is usually required for components that are to be used in racing.
  • a fiber-reinforced (for example glass and / or carbon fiber) plastic is used for the production of the bearing shell.
  • a bearing for rotatably connecting two parts which comprises the bearing shell already described, wherein the bearing shell with the a part is connectable and a rolling bearing or ball bearing is received in the bearing shell, wherein the bearing shell at least partially flowed clamped against the rolling bearing or ball bearing, so that the other part via the rolling bearing or ball bearing and the bearing shell is rotatably connected to the one part.
  • An essential point of the bearing according to the invention is that tolerance fluctuations of the parts installed together are reliably and reliably compensated.
  • the deviations thus compensated often affect not only deviations of a diameter, which causes an excessive compression of the bearing, but also roundness deviations, which require the fitted bearing to be punctually excessively stressed.
  • local dimensional differences, such as Burrs compensated by the flexibility of the bearing shell and thus of the bearing.
  • the inventive bearing has a longer life and also an increased load capacity, since such a warehouse can be operated under much better conditions. In practice, this results in considerable advantages.
  • a headset and / or a wheel hub and / or a bottom bracket comprises at least one inventive bearing.
  • Fig. 1 is a perspective view obliquely from above of a bearing shell according to the invention; a side view of the bearing shell of Fig. 1; a perspective view obliquely from above on the bearing shell of Fig. 1; a top view of the bearing shell of Fig. 1; a perspective view obliquely from below on the bearing shell of Fig. 1; a partially sectioned side view of a control head of a two-wheeled vehicle with an upper and lower bearing unit, and a sectional side view of the upper bearing unit of FIG. 3rd
  • Fig. 1 shows a perspective view obliquely from above of a bearing shell 100 according to the invention, with a circular cylindrical body 101 in which a roller bearing or ball bearing (not shown here) is receivable, and the base body 101 consists of a flowable material. Under load of the bearing shell 100, this is clamped against the rolling bearing, ie on its inner shell against the outer shell, so that the rolling bearing is held against rotation in the base body 101.
  • the inner shell of the bearing shell 100 forms a clamping profile 102, which is provided with recesses 103, which are configured here only as an example as corresponding pockets 104.
  • the bearing shell 100 is provided with a stop surface 106 which rests flat against the corresponding Verbauteil.
  • the rolling bearing or ball bearing (not shown here) is protected against corresponding influences and is kept stable, as it were, with a long service life.
  • a lower edge of the bearing shell 100 projects inwards and forms a support surface 105 on which the rolling bearing or ball bearing can be reliably and securely supported, so that its stable support must not only be effected by the radial clamping with the bearing shell 100.
  • FIG. 2 a shows a side view of the bearing shell 100 of FIG. 1, from which the abutment of the abutment surface 106 and the specific shape of the transition from the main body 101 to the support surface 105 are also shown once again.
  • the bearing shell 100 has at this point an all-round chamfer to make their installation particularly simple. A corresponding stability of this transition is ensured by an internally increased material thickness as an angled extension of the webs 104 formed between the pockets 104 in FIG. 1 is visible.
  • Fig. 2b shows a perspective view obliquely from above the bearing shell 100 of FIG. 1, which again from this perspective, the recesses 103 are visible, which are formed as pockets 104.
  • the main body 101 of the bearing shell 100 is at the viewer facing the axial end of the bearing shell 100 in the abutment surface 106, and on the viewer facing away from the axial end of the bearing shell 100 in the support surface 105 for the rolling bearing or ball bearings.
  • Fig. 2c shows a top view of the bearing shell 100 of Fig. 1, which illustrates the semicircular cross-sectional profile of the pockets 104, which can be particularly easily attached mechanically or produced in an original injection molding process. From this top view it is also clear to what extent the support surface 105 and the abutment surface 106 protrude from the base 101 of the bearing shell 100.
  • FIG. 2d shows a perspective view obliquely from below onto the bearing shell of FIG. 1, in which once again the circumferential chamfer between main body 101 and support surface 105 can be seen.
  • This chamfer leaves e.g. a particularly simple self-centering of the bearing shell 100 on a pipe, which is particularly easy to assemble, in particular with the already recorded therein bearings or ball bearings.
  • Fig. 3 shows a partially sectioned side view of a control head of a two-wheeled vehicle with an upper and lower bearing unit 111, 112.
  • a fork 420 is rotatably connected to a shaft tube 410.
  • the shaft tube 410 is rotatably mounted in a control tube 400.
  • bearings 200 are often used HägäggeHager, but other types of bearings are possible.
  • the control tube 400 is here part of a two-wheeled vehicle frame, which is shown here only partially. The execution of the frame is insignificant for the function of the steering head bearing.
  • To build up take the upper bearing unit 111, the control tube 400 at its upper end to a bearing shell 100 according to the invention.
  • This bearing shell 100 is fitted into the control tube 400 to ensure a secure fit for the outer ring of the rolling bearing 200 and thus provide a bearing 300 for rotatably connecting the control tube 400 to the shaft tube 410.
  • a clamping part 108 ensures the back pressure on the part of the shaft tube 410.
  • FIG. 4 shows a lateral sectional view of the upper bearing unit 111 of FIG. 3, with a cover 107 sealed by means of seals 109, which protects the bearing shell 100 according to the invention with the rolling bearing or ball bearing 200 clamped therein from above.
  • a bearing 300 for rotatably connecting the control tube 400 to the shaft tube 410 is provided.
  • the clamping member 108 provides the back pressure on the part of the shaft tube 410 to ensure a stable position of the roller bearing or ball bearing 200 against the clamping forces acting between the roller bearing or ball bearing 200 and the bearing shell, when the "deformation effect" formed between the pockets 104 Footbridges enters.
  • a control head bearing for two-wheeled vehicles which has an upper and a lower bearing unit 111, 112 through which a rigidly connected to the fork 420 of the two-wheeled vehicle steerer tube 410 with a control tube 400 of the frame of the two-wheeled vehicle is rotatably connected without play, wherein the storage unit 111, 112 j is in each case arranged in bearing housings 100 fixedly connected to the control tube 400, and the bearing shell 100 has recesses 103 along its circumference having.
  • the control head bearing thereby provides recesses 103, on the circumference of the bearing shell 100 extend.
  • the bearing shells 100 may be made of a thermoplastic material or of an aluminum diecasting.
  • the bearing shells 100 may consist of a material with cavities, eg a PPE foam (extruded polypropylene) or else other plastics produced by foam extrusion.
  • the deformation of the bearing shell ring can be realized not only on the material use of KunsStoff, but also with only slightly elastically deformable materials, such as soft aluminum alloys can be effected.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)
  • Steering Devices For Bicycles And Motorcycles (AREA)

Abstract

L'invention concerne une cuvette de roulement destinée à recevoir un palier à roulement ou un roulement à billes, comprenant un corps de base en forme de cylindre circulaire dans lequel un palier à roulement ou un roulement à billes peut être reçu. Le corps de base est constitué d'une matière apte au fluage qui appuie contre le palier à roulement en le serrant lorsque la cuvette de roulement est sollicitée, de sorte que ledit palier est maintenu dans le corps de base sans pouvoir tourner. L'invention concerne en outre un palier, servant à assembler deux pièces de manière mobile en rotation, qui comprend une cuvette de roulement de ce type, ainsi qu'un véhicule à deux roues comprenant au moins un palier de ce type.
EP13739951.5A 2012-06-25 2013-06-24 Cuvette de roulement pour palier Withdrawn EP2864653A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202012006121U DE202012006121U1 (de) 2012-06-25 2012-06-25 Steuerkopflagerung für Zweiradfahrzeuge mit Toleranzausgleich
PCT/EP2013/063158 WO2014001265A1 (fr) 2012-06-25 2013-06-24 Cuvette de roulement pour palier

Publications (1)

Publication Number Publication Date
EP2864653A1 true EP2864653A1 (fr) 2015-04-29

Family

ID=46845422

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13739951.5A Withdrawn EP2864653A1 (fr) 2012-06-25 2013-06-24 Cuvette de roulement pour palier

Country Status (6)

Country Link
US (1) US20150175235A1 (fr)
EP (1) EP2864653A1 (fr)
CN (1) CN104769295A (fr)
DE (1) DE202012006121U1 (fr)
TW (1) TWI551787B (fr)
WO (1) WO2014001265A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017211792A1 (de) * 2017-07-10 2019-01-10 Aktiebolaget Skf Verfahren zur Befestigung eines Lagerträgers und Anordnung

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3509604A1 (de) * 1985-03-16 1986-09-18 Robert Bosch Gmbh, 7000 Stuttgart Lagersitz
JPH1130239A (ja) * 1997-05-12 1999-02-02 Nippon Seiko Kk 電食防止転がり軸受

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US3532402A (en) * 1968-05-09 1970-10-06 Burroughs Corp Bearing mount
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DE3216958C3 (de) * 1982-05-06 1995-04-20 Kugelfischer G Schaefer & Co Befestigung einer Tretlagerwelle
DE8531659U1 (de) * 1985-11-09 1985-12-19 SKF GmbH, 8720 Schweinfurt Vorrichtung zur Befestigung von Lagern
DE3940274A1 (de) * 1989-12-06 1991-06-13 Esjot Antriebstech Gmbh & Co Tretlagereinheit zum einbau in tretlagergehaeuse von fahrraedern o. dgl. und verfahren zum zusammenbau der tretlagereinheit
US5437510A (en) * 1994-03-30 1995-08-01 Jeng; Jin-Chyr Fixing device of bicycle pedal axle
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US6651525B2 (en) * 2001-12-28 2003-11-25 Cheng-Xun Jiang Head set assembly for bicycles
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Publication number Priority date Publication date Assignee Title
DE3509604A1 (de) * 1985-03-16 1986-09-18 Robert Bosch Gmbh, 7000 Stuttgart Lagersitz
JPH1130239A (ja) * 1997-05-12 1999-02-02 Nippon Seiko Kk 電食防止転がり軸受

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2014001265A1 *

Also Published As

Publication number Publication date
DE202012006121U1 (de) 2012-08-13
TWI551787B (zh) 2016-10-01
US20150175235A1 (en) 2015-06-25
TW201411003A (zh) 2014-03-16
WO2014001265A1 (fr) 2014-01-03
CN104769295A (zh) 2015-07-08

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