WO2009040835A1 - Dispositif de mesure de dimensions internes de jantes de roue pour monter des étriers de frein à disque, ensemble de mesure et procédé de mesure associé - Google Patents

Dispositif de mesure de dimensions internes de jantes de roue pour monter des étriers de frein à disque, ensemble de mesure et procédé de mesure associé Download PDF

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Publication number
WO2009040835A1
WO2009040835A1 PCT/IT2007/000666 IT2007000666W WO2009040835A1 WO 2009040835 A1 WO2009040835 A1 WO 2009040835A1 IT 2007000666 W IT2007000666 W IT 2007000666W WO 2009040835 A1 WO2009040835 A1 WO 2009040835A1
Authority
WO
WIPO (PCT)
Prior art keywords
axial
radial
dimension measuring
relative
arm
Prior art date
Application number
PCT/IT2007/000666
Other languages
English (en)
Inventor
Andrea Matti
Alessandro Zanini
Original Assignee
Freni Brembo, S.P.A.
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 Freni Brembo, S.P.A. filed Critical Freni Brembo, S.P.A.
Priority to PCT/IT2007/000666 priority Critical patent/WO2009040835A1/fr
Publication of WO2009040835A1 publication Critical patent/WO2009040835A1/fr

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B3/00—Measuring instruments characterised by the use of mechanical techniques
    • G01B3/02—Rulers with scales or marks for direct reading
    • G01B3/04—Rulers with scales or marks for direct reading rigid
    • G01B3/08—Rulers with scales or marks for direct reading rigid extensible
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • F16D55/02—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members

Definitions

  • the present invention relates to a measuring device of internal dimensions of wheel rims for mounting disk brake callipers, a kit for measuring and the relative measuring method.
  • the object of the present invention is to solve the disadvantages mentioned with reference to the prior art.
  • figure 1 shows a perspective view of a measuring device according to an embodiment of the present invention
  • figure 2 shows a perspective view of the measuring device of figure 1 associated to a wheel rim
  • figure 3 shows a perspective section view of the measuring device of figure 1 associated to a wheel rim
  • figure 4 shows a schematic section view of an assembly of a wheel rim, of a calliper and of a brake disk.
  • reference numeral 4 generally denotes a measuring device for internal dimensions of wheel rims 8.
  • Device 4 comprises a hooking element 12 to a wheel rim 8 of axis of rotation X-X, said hooking element 12 being suitable for fixing device 4 to the wheel rim 8 so as to seat device 4 in an inner space 16 delimited by the wheel rim
  • Device 4 further comprises a dimension measuring element 20 having a radial section that reproduces the profile of a brake calliper 52.
  • the dimension measuring element has an external profile identical to that of a calliper 52; in particular, said profile reproduces the radial 21 and axial 22 dimensions of a brake calliper 52 (figure 4).
  • Device 4 further comprises a connection element 24 that connects the dimension measuring element 20 to the hooking element 12.
  • the connection element 24 is suitable for allowing and measuring movements of the dimension measuring element 20 relative to an axial direction, parallel to said axis of rotation X-X and relative to a radial direction, perpendicular to said axis of rotation X-X and incident thereon.
  • the hooking element 12 comprises a first fixing element 28 suitable for interfacing with a centring hole 30 of a hub 31 of rim 8 to an associable suspension.
  • the first fixing element 28 comprises a conical portion 32 suitable for inserting at least partly in said centring hole 30 of hub 31 , and for ensuring the coaxiality with the axis of rotation X-X of the wheel rim 8.
  • the hooking element 12 comprises a second fixing element 36 suitable for arranging on the side axially opposite the first fixing element 28 so that in an assembled configuration of device 4 on rim 8, the wheel rim 8 is constrained at axially opposite sides, between the first and the second fixing element 28, 36 (figure 3).
  • the first and the second fixing element 28, 36 are mounted on a pin 38 suitable for allowing an axial shifting of at least one of said elements 28, 36 so as to adjust the axial distance between the fixing elements 28, 36 and wheel rims 8 having different axial thickness at the centring hole 30 of hub 31.
  • the hooking element 12 can comprise a ring nut 40, preferably arranged axially opposite the inner space 16 of rim 8, so as to lock device 4 in shifting on hub 31 by the first and second fixing element 28, 6.
  • the dimension measuring element 20 is made in the shape of a plate 48 that reproduces the radial and axial dimensions of a brake calliper 52 at portions of the calliper body directly facing the inner surface of the wheel rim 8, in an assembled configuration of rim 8 about the brake calliper 52.
  • said plate 48 of the dimension measuring element 20 has a tangential thickness substantially negligible compared to the radial and axial thickness, said tangential thickness being measured along a tangential direction perpendicular to the axial and radial directions.
  • said connection element 24 comprises an axial reference plane 56, substantially perpendicular to said axial direction, suitable for abutting against a support surface 58 of hub 31 of the wheel rim. Said support surface 58 is suitable for abutting on an associable drum 62 of a brake disk 66.
  • the axial reference plane 56 defines a zeroing of the axial position of the dimension measuring element 20 relative to the wheel rim 8.
  • connection element 24 comprises a radial reference plane 70, substantially perpendicular to said radial direction, suitable for defining a zeroing of the radial position of the dimension measuring element 20 relative to the wheel rim 8.
  • the connecting element 24 comprises a first support arm 74 of the dimension measuring element 20 suitable for allowing and measuring an axial and/or radial movement of the measuring element 20.
  • the first support arm 74 comprises at least one axial or radial slot 78 suitable for allowing the relative sliding respectively axial or radial of the dimension measuring element 20 relative to the first support arm 74.
  • the first arm 74 comprises locking means 82 of the dimension measuring element 20 relative to the first arm 74, so as to make the dimension measuring element 20 and the first arm 74 integral relative to a desired position.
  • the locking means 82 comprise screw means 86 passing through said axial or radial slot 78.
  • the first arm 74 comprises a measuring scale 90 suitable for providing the axial 91 or radial 92 position of the measuring element 20 relative to the support surface 58 or to the axis of rotation X-X of the wheel rim 8 (figure 4).
  • axial position 91 it is meant the axial distance between the maximum extension of calliper 52 and a support surface 58 of the wheel hub 31 ; by support surface 58 of the wheel hub it is meant the portion of hub intended to abut on a drum 62 of a brake disk 66.
  • radial position 92 it is meant the maximum radial distance 22 between calliper 52 and the axis of rotation X-X of the wheel rim 8 (figure 4).
  • the connecting element 24 comprises a second support arm 94 of the dimension measuring element 20 suitable for allowing and measuring an axial or radial movement of the dimension measuring element 20.
  • the second support arm 94 comprises an axial or radial slot 78 suitable for allowing the relative axial or radial sliding of the dimension measuring element 20 relative to the second support arm 94.
  • the second arm 94 is operatively connected to the first arm 74 at an axial or radial slot 78, so as to allow a relative axial or radial movement between the connection arms 74, 94.
  • the second arm 94 comprises locking means 82, for example screw means 86 passing through a radial or axial slot 78, suitable for making said first and second arm 74, 94 integral with one another in a desired position.
  • the second support arm 94 comprises a measuring scale 90 suitable for providing the axial or radial position of the dimension measuring element relative to the axis of rotation X-X of the wheel rim 8.
  • the second support arm 94 is operatively connected to the hooking element 12 so as to allow a relative axial or radial movement between the connection element and the hooking element; in this way it is possible to zero the reference radial and/or axial values of the dimension measuring element relative to the axis of rotation X-X of the rim and to the support surface 58.
  • the zeroing step is necessary to position the dimension measuring element in the exact axial and radial position that the equivalent calliper takes inside the rim.
  • the present invention further relates to a kit for measuring the radial and axial dimensions of a brake calliper 52.
  • the measuring kit comprises a measuring device 4 and at least one table showing the values of axial 91 and radial 92 positions of at least one brake calliper 52; the kit further comprises at least one dimension sensing element 20 having an axial 22 and radial 21 dimension equivalent to those of said brake calliper 52.
  • the kit comprises a table or in any case a collection of data relating to the values of axial 91 and radial 92 positions of a plurality of brake callipers in assembled configuration; for each brake calliper the kit comprises a corresponding dimension measuring element 20 associable to device 4.
  • a dimension measuring method shall now be described according to an embodiment of the present invention.
  • Said dimension measuring method of a brake calliper in a wheel rim comprises the steps of fixing a dimension measuring device 4 to the wheel rim 8, said device being provided with a dimension measuring element 20 that reproduces the axial 22 and radial 21 dimensions of a brake calliper the compatibility whereof with a predetermined wheel rim 8 of a determined suspension should be checked.
  • the method therefore comprises, after preferably carrying out the axial and radial zeroing of the dimension measuring element 20, the step of bringing the dimension measuring element 20 to the axial 91 and radial 92 positioning values envisaged by the corresponding brake calliper 52 in assembled configuration. [0044] If this operation is possible because the dimension measuring element does not interfere, that is, does not come into contact with the inner wall of the rim, then the corresponding model of brake calliper 52 is compatible with that wheel rim and can be mounted in replacement of the original brake calliper. [0045] As can be appreciated from the description, the measuring device of the present invention allows overcoming the disadvantages of the prior art.
  • the measuring device allows checking the possibility of replacing the calliper with a substitute one without having to procure the new calliper in advance and without having to mount said new calliper on the rim and on the suspension to check the adaptability thereof.
  • the element kit for measuring dimensions or shapes of calliper bodies allows checking for any type of calliper the adaptability to any wheel rim.
  • the maximum admissible radial and axial dimensions in the rim are measured and the values of dimensions and positions of a plurality of calliper models are compared. Therefore all the callipers that can be mounted with that rim are checked in advance, without requiring the relative mounting thereof on the rim.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Braking Arrangements (AREA)

Abstract

L'invention porte sur un dispositif de mesure (4) de dimensions internes de jantes de roue (8) pour monter des étriers de frein à disque, sur un ensemble et sur un procédé de mesure associé. Le dispositif (4) permet l'évaluation de la possibilité de remplacer l'étrier de frein reçu dans une jante de roue (8), de régler les valeurs concernant la position de l'étrier de rechange dans la jante de roue (8) et de vérifier qu'il ne vient pas en contact avec celle-ci, sans nécessiter le montage au préalable du nouvel étrier dans la jante de roue.
PCT/IT2007/000666 2007-09-25 2007-09-25 Dispositif de mesure de dimensions internes de jantes de roue pour monter des étriers de frein à disque, ensemble de mesure et procédé de mesure associé WO2009040835A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/IT2007/000666 WO2009040835A1 (fr) 2007-09-25 2007-09-25 Dispositif de mesure de dimensions internes de jantes de roue pour monter des étriers de frein à disque, ensemble de mesure et procédé de mesure associé

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IT2007/000666 WO2009040835A1 (fr) 2007-09-25 2007-09-25 Dispositif de mesure de dimensions internes de jantes de roue pour monter des étriers de frein à disque, ensemble de mesure et procédé de mesure associé

Publications (1)

Publication Number Publication Date
WO2009040835A1 true WO2009040835A1 (fr) 2009-04-02

Family

ID=39402794

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2007/000666 WO2009040835A1 (fr) 2007-09-25 2007-09-25 Dispositif de mesure de dimensions internes de jantes de roue pour monter des étriers de frein à disque, ensemble de mesure et procédé de mesure associé

Country Status (1)

Country Link
WO (1) WO2009040835A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4129950A (en) * 1977-07-25 1978-12-19 Theodore Weinhaus Wheel gauge
FR2636730A1 (fr) * 1988-09-20 1990-03-23 Samax Calibre a machoires reglable a lecture
US4970798A (en) * 1989-02-03 1990-11-20 Westinghouse Electric Corp. Recess contour gauge
US6298568B1 (en) * 1999-03-25 2001-10-09 Lucent Technologies, Inc. Feeler gage alignment tool

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4129950A (en) * 1977-07-25 1978-12-19 Theodore Weinhaus Wheel gauge
FR2636730A1 (fr) * 1988-09-20 1990-03-23 Samax Calibre a machoires reglable a lecture
US4970798A (en) * 1989-02-03 1990-11-20 Westinghouse Electric Corp. Recess contour gauge
US6298568B1 (en) * 1999-03-25 2001-10-09 Lucent Technologies, Inc. Feeler gage alignment tool

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