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WO2008004977A1 - Couvercle de protection offrant une protection temporaire de pièces d'un système de freinage sur une roue de véhicule - Google Patents

Couvercle de protection offrant une protection temporaire de pièces d'un système de freinage sur une roue de véhicule Download PDF

Info

Publication number
WO2008004977A1
WO2008004977A1 PCT/SE2007/050505 SE2007050505W WO2008004977A1 WO 2008004977 A1 WO2008004977 A1 WO 2008004977A1 SE 2007050505 W SE2007050505 W SE 2007050505W WO 2008004977 A1 WO2008004977 A1 WO 2008004977A1
Authority
WO
WIPO (PCT)
Prior art keywords
protective cover
line section
circumferential edge
edge part
cover
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.)
Ceased
Application number
PCT/SE2007/050505
Other languages
English (en)
Inventor
Gerhard Pihl
Christer Gustafsson
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.)
IT-PAC SVERIGE AB
Original Assignee
IT-PAC SVERIGE 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 IT-PAC SVERIGE AB filed Critical IT-PAC SVERIGE AB
Publication of WO2008004977A1 publication Critical patent/WO2008004977A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/0025—Rust- or corrosion-preventing means
    • 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
    • F16D2055/0004—Parts or details of disc brakes
    • F16D2055/0037—Protective covers

Definitions

  • the present invention relates to an arrangement for the temporary protective shielding of parts of a braking system on vehicle wheels according to the preamble of patent claim 1 below and to a method of removing the protective cover according to the preamble of patent claim 11 below.
  • SE 502 527 discloses the provision of covers, which are applied to vehicle wheels so that they cover the brake disk and brake caliper, following which the wheels are fitted outside. In order to remove the cover, it must be divided and the provision of some form of dividing element, which extends radially from one circumferential edge of the cover to its other circumferential edge, is already known.
  • the dividing elements hitherto used have consisted of separately produced elements, such as wires, for example, which are attached to the wall of the cover by adhesive bonding or taping, for example.
  • the object of the present invention is to provide a protective cover, which optimally fulfils the function and can be produced at low cost.
  • a further object is to provide a method of reliably removing the protective cover.
  • Fig. 1 in a section through a vehicle wheel with brake parts shows shielding by means of a protective cover of the type in question, represented schematically as an example,
  • Fig. 2a shows a view of the protective cover shown from the inside as a concrete exemplary embodiment
  • Fig. 2b is a cut-away, enlarged partial view of Fig. 2a
  • Fig. 3 is a side view of the cover according to Fig. 2
  • Fig. 4 is a partially cut-away view along the line A-A in Fig. 2, showing a first embodiment of a break indicator according the invention
  • Figs. 5-8 are corresponding views showing various examples of break indicators according to the invention.
  • Figs. 9-11 in partially cut-away sectional views along the line B-B in Fig. 4 show examples of how the break indicator is designed.
  • the protective cover 1 according to the invention and its placing in the fitted state will first be described in purely schematic terms with reference to Fig. 1.
  • the cover 1 is formed to a specific shape, more specifically to a substantially dished shape, which is substantially rotationally symmetrical about an axis of symmetry 2, which corresponds to the axis of rotation 2 of the vehicle wheel 3, to which the protective cover is intended to be fitted.
  • the vehicle wheel 3 or the wheel unit conventionally comprises a wheel rim 4, on which a tire 5 is fitted.
  • the wheel 3 and more specifically its rim 4 is fixed by means of bolts (not shown), the one longitudinal axis of which is indicated by the dot-and- dash line 6, to a substantially cylindrical mounting part 7, which is firmly connected to the wheel axle (not shown) of the vehicle, which extends along the axis of symmetry 2 and which encloses the wheel bearing.
  • the mounting part 7 is therefore a unit rotatably supported in relation to the vehicle chassis and rotates either together with the wheel axle or relative thereto, depending on the location of the wheel on the vehicle and the method of propulsion of the vehicle.
  • the mounting unit 7 supports the part of the braking system rotating with the wheel 3, in the example shown a brake disk 8 having two effective brake surfaces 9, 10, with which the brake lining interacts in a manner known in the art.
  • the brake linings or the brake blocks are fitted in a brake caliper (not shown in Fig. 1), which in a conventional manner known in the art does not rotate with the brake disk.
  • a protective plate 11 Arranged inside the brake disk 8 in this example is a protective plate 11 , which is firmly attached to the wheel suspension.
  • This protective plate together with the wheel rim 4 protects the brake disks at least partially from dirt and splash water.
  • the protective plate does not extend to the edge of the brake disk or past the latter and therefore does not cover the rear side of the brake disk.
  • the protective plate may be entirely absent.
  • the protective cover 1 more specifically has a part which forms an orbital circumferential surface 12, which in the example shown is substantially conical, and which in an outward axial direction merges into an end wall 13 or bottom wall, which if anything extends radially to the axis of symmetry 2.
  • this end wall is substantially plane and extends from the circumferential wall 12 up to the inner circumferential edge 14 of the protective cover, which runs in a circular arc around a central hole 15 in the cover.
  • this hole is designed so that the protective cover can be fitted relatively tightly against the periphery of the cylindrical mounting part 7, and in the example shown has a peripherally extending reinforcing collar 16, which consists, for example, of at least one outer cylindrical surface which merges into one or two annular surfaces in the radial plane with an intermediate step.
  • the peripherally outer circumferential edge part 17 of the protective cover adjoins the peripheral edge 18 of the protective plate 11 fairly tightly.
  • the peripherally outer circumferential edge part 17 of the protective cover has an orbital step 19, which is designed to form a support against one side of the protective plate, in order thereby to define the position of the protective cover in an axial direction, that is to say along the axis of symmetry 2.
  • This also provides radial guidance and secure positioning in relation to the axis of symmetry 2, whilst the stepped edge part 17 constitutes a labyrinth seal, which prevents the undue ingress of dirt particles and splash water.
  • the protective cover has engaging elements 20, which in the example shown consist of snap elements, which allow the protective cover to be snapped firmly behind the peripheral edge of the protective plate.
  • the snap function is achieved in that the snap elements 20 consist of local elevations, which therefore do not extend continuously around the entire periphery of the protective cover, but are confined to a few isolated elevations of a very limited width in relation to the entire periphery.
  • the protective cover is in fact made of flexible plastic material, such as polystyrene, which is to a certain extent dimensionally stable, so that in the absence of deformation forces it retains its predefined shape but, when applying the protective cover, allows the elevations 20 to spring over the periphery of the protective plate and then to snap behind its edge in order to hold the protective cover fast in the fitted protective position.
  • Figs. 2a and 3 that, in addition to the basic form represented schematically in Fig. 1 , it is in most cases necessary, for reasons of space, to provide a local part 21 , which is both axially and radially somewhat raised and is intended to allow room for the brake caliper in the braking system.
  • a local part 21 which is both axially and radially somewhat raised and is intended to allow room for the brake caliper in the braking system.
  • snap elements or hook elements 51 are provided, which can engage in the brake caliper in order to fasten the cover to this, so that the cover does not rotate with the rotation of the wheel.
  • the purpose of the protective cover is not to seal off the space 25 hermetically, but primarily to shield and substantially close off the corrosion- prone parts of the brake system on the vehicle wheel from the surroundings, and also to protect newly painted parts, such as rims, against hot brake lining particles, which can be burned onto paint surfaces.
  • the protective cover can therefore serve to create a well-shielded space 25 without affecting the functioning of the vehicle. This goes a long way towards counteracting any corrosive attack to the brake surfaces in as much as splash water and other atmospheric humidity are excluded. This corrosion- inhibiting effect can advantageously be enhanced by providing the protective cover, as shown in Figs.
  • corrosion-inhibiting agents of a type which create a corrosion-inhibiting environment in the space 25 shielded by the protective cover.
  • corrosion-inhibiting agents are already known in the art and are based on the application inside the protective cover of a corrosion inhibitor, which is in chemically bound form but which is designed for slow transition to a vaporous state, creating a rust-inhibiting effect inside the space 25, which with its limited volume of air maintains a sufficient concentration of the corrosion-inhibiting agent to effectively prevent corrosion of the brake surfaces.
  • the agent may be applied to paper layer, which in the example shown extends on the inside of the wall part 13. The layer may be firmly bonded or attached to the protective cover by means of a number of staples 29.
  • the anticorrosion agent can alternatively be applied as a layer coated on the inside of the protective cover or in some other form.
  • a dividing element 26 in the form of a specially formed break indicator, which is shown in a first example in Fig. 2a and is shown on a larger scale in Figs. 2b and 4.
  • the dividing element is not a separate element fitted to the cover, but is formed in the plastic wall of the cover, both over the outer, more conical part 12 and over the planer part which is intended to cover the front face of the brake disk, that is to say extending between the radially inner circumferential edge part 14 of the cover and its radially outer circumferential part 17.
  • the protective cover is furthermore made from a deformable material, such as polystyrene, such that the protective cover at the dividing point, which occurs at 26, can be opened to a width at least equal to the diameter of the mounting part 7, so that the cover can be slipped over this and drawn out away from the inside through the gap between the periphery of the protective plate 11 and the rim 4.
  • a deformable material such as polystyrene
  • the break indicator 26 has a chosen main direction over a radially inner line section 27 from the inner circumferential edge part 14 and towards the outer circumferential edge part 17, this line section merging into at least one radially outer line section 28, which takes a different direction from the inner line section.
  • the break indicator 26 is applied over the raised part 21 covering the caliper and is applied somewhat asymmetrically, that is to say not symmetrically about the center. This is done in order that the line section 27 will not break up the symmetrically placed snap element 51 and adversely affect its fastening function.
  • the break indicator has two radially outer line sections 28, 29, 30, 31, which form a V-shape, whilst in the examples according to Figs. 7 and 8 only one outer line section is chosen.
  • the main direction of the inner line section 27 has been given a linear radial direction, although it can alternatively be given some other direction, such as an obliquely slanting, angled or curved direction, for example.
  • the radially outer line sections may be straight, as in Figs. 4, 5 and 8, or they may extend differently in a curved shape, as in the examples in Figs. 6 and 7.
  • the line section is three-dimensional and follows the extent of the cover wall, but the directions indicated relate to an imaginary radial plane, that is to say the plane of the paper.
  • the break indicator is designed so that the cover will be held together, that is to say closed, in its fitted state.
  • the cover wall is fully pierced over the extent of the division, that it to say it is divided in the form of slits or cuts over its main line sections with intervening bridges 32-37, where the wall material hangs together.
  • bridges 38, 39 are created in that the division is interrupted before it reaches the edges, so that the cover wall is held together.
  • These bridges may be formed in various ways, as shown, by a single interruption in the slit or interruptions surrounded by short dividing line sections 38, 39.
  • FIG. 9 shows the fully pierced cover wall.
  • the placing and size of the bridges is an important factor in the parting action.
  • the one outer line section 29 coheres continuously to the line section 27 in the actual branch 41, whilst the second outer line section 28 has a bridge 33 in the branch.
  • the pierced line sections may be provided with some form of element which inhibits the tendency towards splitting.
  • split-inhibiting elements are indicated in Figs. 2a, 2b and 8 and may consist of pierced apertures 42, 43, 44, 52, for example circular holes, which are located at the end of at least some of the slit-like line sections, for example, that is to say before any bridge 37, 39.
  • the slit-like line section 27 is terminated at its radially inner end 45 by an aperture 42 before a bridge 46, that is to say an interruption to the slit towards the inner circumferential edge part 14.
  • the split-inhibiting aperture 43 has been applied at one end 47 of the main radial line section 48 and a split-inhibiting aperture 44 at both the outer and the inner ends 49, 53 of the slanting slit line section 50.
  • the break indicator may be a continuous weakening in the plastic material over the entire extent from edge to edge, for example the cover wall may be more thin-walled over the extent of the dividing line section, as shown in Fig. 10, or it may be weakened by a deformation, as shown in Fig. 11.
  • the pliers can thereby grip the material at the outer edge, basically just in front of the main line section of the brake indicator and thereby apply a symmetrical tensile stress in the direction of the line section which presents the least risk of oblique splitting and hence of incomplete separation. Pulling the flap with the pliers and possibly also turning the pliers creates such stresses in the bridges or the weakened parts that the material is fractured and the cover can be pulled out by continuing to draw the pliers outwards.
  • the protective cover according to the invention may alternatively take a modified form in which the protective cover is divided into two parts, having an outer dished part with a central hole similar to that in the preceding example, and an inner part which is applied to the rear side of the fixed protective plate 11.
  • This solution can advantageously be used in embodiments such as those described above, in which the periphery 18 of the protective plate is radially smaller, equal to or slightly larger than the periphery of the brake disk 8.
  • the two parts are here provided with mutually adjoining flanges and snap elements of the same type as in the preceding example for engagement by snap-fastening between the two parts of the protective cover instead of snap fastening over the edge part of the protective plate.
  • a break indicator 26 has been shown applied over the raised part 21 for the caliper.
  • the break indicator can be placed elsewhere, for example diametrically opposite the part 21 , or two or more indicators may be spaced over the cover, it being sufficient to take a grip on one of the gripping flaps, for example the one that is most easily accessible.
  • the break indicators need not be designed with split-inhibiting elements.
  • these can take the form of anything from one single element to several elements, in principle at the ends of all slits and also at other critical points, for example a corner of an uninterrupted linear slit, which is angled.
  • other split-inhibiting elements may be chosen, for example a short cross-slit, that is to say terminated by a T-shaped end. In the case of holes, it is sufficient for these to be slightly wider than the slit, thereby affording a stop edge transversely to the longitudinal direction of the slit.

Landscapes

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

Abstract

La présente invention concerne un couvercle de protection (1) offrant la protection anti-corrosion temporaire de pièces d'un système de freinage sur des roues de véhicule. Le couvercle de protection est apte à être divisé au moyen d'éléments de division (26) qui s'étendent entre les bordures périphériques interne et externe, de telle sorte que le couvercle de protection peut être retiré de sa position de protection temporaire. L'élément de séparation (26) comporte un indicateur de rupture dont la direction principale est choisie sur une section de ligne interne sélectionnée (27) de la partie de bordure périphérique interne (14) à la partie périphérique externe (17). La section de ligne se fond en une section de ligne radialement externe (28, 29) qui rend une direction différente de la section de ligne interne. Un volet de saisie est formé sur la partie de bordure périphérique externe, agencé pour être saisi de façon à générer une contrainte de traction qui divise le couvercle.
PCT/SE2007/050505 2006-07-07 2007-07-05 Couvercle de protection offrant une protection temporaire de pièces d'un système de freinage sur une roue de véhicule Ceased WO2008004977A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0601533-3 2006-07-07
SE0601533A SE530109C2 (sv) 2006-07-07 2006-07-07 Skyddskåpa för tillfällig skyddande avskärmning av delar av ett bromssystem vid fordonshjul och förfarande för skyddskåpans avlägsnande

Publications (1)

Publication Number Publication Date
WO2008004977A1 true WO2008004977A1 (fr) 2008-01-10

Family

ID=38894845

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2007/050505 Ceased WO2008004977A1 (fr) 2006-07-07 2007-07-05 Couvercle de protection offrant une protection temporaire de pièces d'un système de freinage sur une roue de véhicule

Country Status (2)

Country Link
SE (2) SE530109C2 (fr)
WO (1) WO2008004977A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011119435A1 (de) * 2011-11-25 2013-05-29 Audi Ag Bremsscheibenabdeckung
CN104696394A (zh) * 2015-01-30 2015-06-10 昆山找准包装有限公司 一种用于制动器临时保护遮蔽的护盖
WO2016018909A1 (fr) * 2014-07-28 2016-02-04 Cadillac Products Automotive Company Couvercle de frein amovible
WO2016119731A1 (fr) * 2015-01-30 2016-08-04 昆山莫可汽车配件有限公司 Couvercle pour protection temporaire et protection de frein
DE102022204897B3 (de) 2022-05-17 2023-11-09 Hl Mando Corporation Scheibenbremssystem mit einem gehäuse

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4253552A (en) * 1978-12-26 1981-03-03 Toyota Jidosha Kogyo Kabushiki Kaisha Anti-rust cover for a disc rotor of a vehicle disc brake
SE502527C2 (sv) * 1992-04-30 1995-11-06 Ind Pac System Ab Anordning för tillfällig, korrisionsskyddande avskärmning av delar av bromssystemet vid fordonshjul
JPH1151096A (ja) * 1997-07-31 1999-02-23 Toyota Motor Corp 車両用ディスクブレーキにおけるディスクロータの防錆カバー
EP1249630A2 (fr) * 2001-04-10 2002-10-16 Carrs Paper Limited Prévention de la corrosion des composants d'automobiles
WO2006118295A1 (fr) * 2005-04-27 2006-11-09 Honda Motor Co., Ltd. Cache de frein a disque

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4253552A (en) * 1978-12-26 1981-03-03 Toyota Jidosha Kogyo Kabushiki Kaisha Anti-rust cover for a disc rotor of a vehicle disc brake
SE502527C2 (sv) * 1992-04-30 1995-11-06 Ind Pac System Ab Anordning för tillfällig, korrisionsskyddande avskärmning av delar av bromssystemet vid fordonshjul
JPH1151096A (ja) * 1997-07-31 1999-02-23 Toyota Motor Corp 車両用ディスクブレーキにおけるディスクロータの防錆カバー
EP1249630A2 (fr) * 2001-04-10 2002-10-16 Carrs Paper Limited Prévention de la corrosion des composants d'automobiles
WO2006118295A1 (fr) * 2005-04-27 2006-11-09 Honda Motor Co., Ltd. Cache de frein a disque

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011119435A1 (de) * 2011-11-25 2013-05-29 Audi Ag Bremsscheibenabdeckung
WO2016018909A1 (fr) * 2014-07-28 2016-02-04 Cadillac Products Automotive Company Couvercle de frein amovible
US9797461B2 (en) 2014-07-28 2017-10-24 Cadillac Products Automotive Company Removable brake cover
CN104696394A (zh) * 2015-01-30 2015-06-10 昆山找准包装有限公司 一种用于制动器临时保护遮蔽的护盖
WO2016119731A1 (fr) * 2015-01-30 2016-08-04 昆山莫可汽车配件有限公司 Couvercle pour protection temporaire et protection de frein
US20180003250A1 (en) * 2015-01-30 2018-01-04 Kunshan Mmk Automotive Co., Ltd Protective Cover for Temporary Protective Shielding of Brake
DE102022204897B3 (de) 2022-05-17 2023-11-09 Hl Mando Corporation Scheibenbremssystem mit einem gehäuse

Also Published As

Publication number Publication date
SE0601533L (sv) 2008-01-08
SE530109C2 (sv) 2008-03-04

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