WO2008090131A1 - Fixation de plaquette de frein et plaquette de frein pour un frein à - Google Patents

Fixation de plaquette de frein et plaquette de frein pour un frein à Download PDF

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Publication number
WO2008090131A1
WO2008090131A1 PCT/EP2008/050660 EP2008050660W WO2008090131A1 WO 2008090131 A1 WO2008090131 A1 WO 2008090131A1 EP 2008050660 W EP2008050660 W EP 2008050660W WO 2008090131 A1 WO2008090131 A1 WO 2008090131A1
Authority
WO
WIPO (PCT)
Prior art keywords
brake
lining
pad
wire
retaining spring
Prior art date
Application number
PCT/EP2008/050660
Other languages
German (de)
English (en)
Inventor
Borislav Salapic
Thomas Lehner
Original Assignee
Knorr-Bremse Systeme für Nutzfahrzeuge 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 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH filed Critical Knorr-Bremse Systeme für Nutzfahrzeuge GmbH
Publication of WO2008090131A1 publication Critical patent/WO2008090131A1/fr

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
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
    • F16D65/092—Bands, shoes or pads; Pivots or supporting members therefor for axially-engaging brakes, e.g. disc brakes
    • F16D65/095—Pivots or supporting members therefor
    • F16D65/097—Resilient means interposed between pads and supporting members or other brake parts
    • F16D65/0973—Resilient means interposed between pads and supporting members or other brake parts not subjected to brake forces
    • F16D65/0974—Resilient means interposed between pads and supporting members or other brake parts not subjected to brake forces acting on or in the vicinity of the pad rim in a direction substantially transverse to the brake disc axis
    • F16D65/0975—Springs made from wire
    • F16D65/0976—Springs made from wire acting on one pad only
    • 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
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
    • F16D65/092—Bands, shoes or pads; Pivots or supporting members therefor for axially-engaging brakes, e.g. disc brakes
    • F16D65/095—Pivots or supporting members therefor
    • F16D65/097—Resilient means interposed between pads and supporting members or other brake parts
    • F16D65/0973—Resilient means interposed between pads and supporting members or other brake parts not subjected to brake forces
    • F16D65/0974—Resilient means interposed between pads and supporting members or other brake parts not subjected to brake forces acting on or in the vicinity of the pad rim in a direction substantially transverse to the brake disc axis
    • F16D65/0975—Springs made from wire
    • 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
    • F16D2055/007—Pins holding the braking members

Definitions

  • the present invention relates to a brake pad holder and a brake pad for a disc brake according to the preamble of claim 1.
  • a generic brake pad holder is known from DE 40 20 287 Al.
  • the brake pad holder is formed so that the leaf spring formed as a brake pad spring are secured to lateral recesses on cantilevered retaining tabs on the brake pad carrier through which the pad retaining spring is held in the radial direction in such a way that an automatic release in a relaxed or partially relaxed position is excluded.
  • the pad retaining spring Since only two connection s are provided to determine the pad retaining spring, which are arranged at a distance from each other, the pad retaining spring is also used as a handle and thereby taken centrally, so that the
  • Pad retention spring acts in the sense of a two-sided clamped carrier, with a tendency to bend it accordingly strong.
  • the spring characteristic of the pad retaining spring can change as a result of this deformation, which can have a disadvantageous effect on the function.
  • large amounts of heat occur during the braking process on the brake linings, which must be absorbed by the brake lining material and also by the pad retaining spring.
  • Geometrie effort takes the trained as a leaf spring pad holding spring a lot of heat. Also the friction in the
  • Saddle displacement is very large in such a leaf spring due to the large contact surface with the overlying pad retaining bracket.
  • the invention has for its object to develop a brake pad holder and a brake pad of the generic type, which is the above
  • the pad retaining spring in the form of a spring wire is easy to manufacture and also requires less space and material compared to a leaf spring, which is reflected in a reduced cost in the production of the brake pad. Taking into account the large quantities in which such brake pads are made, the influence of the cost factor is very significant and a reduction of the same extremely advantageous.
  • the progressive spring characteristic of such a spring with tightly clamped ends is extremely advantageous for use in an environment with different degrees of cushioning force effects, as a result Fatigue of the spring material can be avoided by excessive deformation and accumulation burial can be reduced.
  • the ends of the lining retaining spring are stably supported on bolts on the lining carrier plate.
  • Such bolts are either integrated in the casting of the lining carrier plate or consist of individual parts. They are also very easy and inexpensive to produce and offer the pad retaining spring a very tipping secure against lateral tilting during spring loading.
  • the pad retaining spring is wound at its ends about the bolts in the direction of the wire axis. As a result, the force effect of the pad retaining spring on the brake pad is moved closer to the brake pad center of gravity, whereby any tilting tendency of the pad retaining spring is further reduced.
  • the wire spring is partially corrugated.
  • This corrugated region serves essentially as tolerance compensation in the spring longitudinal direction, for example as a result of
  • Figures 1 shows a basic arrangement of a disc brake and its
  • FIG. 2a shows a front view of the brake pad
  • FIG. 2b shows a front view of a detail of FIG. 2a
  • FIG. 3 a shows a sectional side view of the brake pad
  • FIG. 3b is a sectional side view of a detail of FIG. 3a
  • FIG. 4 a shows a rear view of the brake lining
  • FIG. 4b is a rear view of a detail of Figure 4a
  • Figure 5 is a perspective view of the brake pad
  • FIG. 5b is a perspective view of the detail of FIG. 5a.
  • the basic arrangement of a disc brake and its pad retention system can be seen in the figure 1.
  • the disc brake has a brake caliper 1, which comprises a brake disc (not shown) to which brake pads 2 can be pressed on both sides, wherein one of the brake pads or both is pressed against the brake disc in a functional case by means of an application device (not shown).
  • the brake pads 2 are preferably used in provided on the brake carrier lining shafts on both sides of the brake disc and consist of a friction lining 4 and a pad carrier plate 5.
  • a pad retaining bracket 3 is mounted across the two brake pads 2, where as Supported wire springs formed pad retaining springs 6 of the brake pads 2.
  • Wire spring formed pad retaining spring 6 shown. As can be seen in Figure 2a and 5a, the pad retaining spring 6 is arranged above and along the lining shaft opening directed front longitudinal side of the lining carrier plate 5. In this case, the pad retaining spring 6 extends centered about half of the lining carrier plate. In the middle of the front longitudinal side of the lining carrier plate 5, the
  • Belageauplatte a Federwegbegrenzer 10 which serves as a stop for the pad retaining spring 6.
  • the cross section of the wire used for the wire spring is preferably round, as shown in Figure 3, but can also be rectangular, be formed polygonal, semicircular or elliptical.
  • the diameter of the wire is preferably about 3 ⁇ 1 millimeter.
  • a part of the pad retaining spring is wave-shaped, wherein the waves of the pad retaining spring 6 in the plane of the
  • the lining retaining spring 6 is secured against loss and secured in a form-fitting manner radially deflectable on a lining carrier plate 5 of a brake pad 2 bearing the friction lining 4.
  • the ends of the pad retaining spring 6 are supported on bolts 8, which protrude from protuberances 11 on the directed towards the lining shaft opening end longitudinal side of the lining carrier plate 5 to the friction lining.
  • the bolts 8 and the protuberances 11, from which they protrude, are preferably integrated into the casting of the lining carrier plate 5, but may also consist of individual parts which are fixedly attached to the lining carrier plate 5.
  • Figures 4a and 4b show such a protuberance on the lining carrier plate in a conical design, which is integrated in the casting of the lining carrier plate 5.
  • the bolts 8 are in a particularly advantageous embodiment facing at its the friction surface 4 of the brake pad 2
  • the pad retaining spring 6 is wound at its ends around the respective bolt, wherein the winding axis extends transversely to the wire spring axis.
  • the winding 9 describes at least one complete circle of 360 °, in particular an angle of approximately 450 °. Due to the wire offset caused by this winding 9, the tilt tendency of the wire in the direction of the brake disk axis is reduced.
  • the wire 6 is at its free end with the lining carrier plate 5 frictionally or cohesively supported, preferably by
  • the length of the recesses 7 along the front longitudinal side of the lining carrier plate 5 is slightly larger than the diameter of the wire spring coil.

Landscapes

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

Abstract

L'invention concerne une fixation de plaquette de frein pour un frein à disque, en particulier pour des véhicules utilitaires. Des deux côtés d'un disque de frein, des plaquettes de frein associées (2) sont respectivement montées de manière contrainte par ressort dans un compartiment de garniture d'une flasque de frein stationnaire, lesquelles présentent respectivement un ressort de retenue de garniture (6) réalisé avec une forme courbe, lesquelles sont maintenues de manière à ne pas être perdus et à pouvoir se déformer radialement sur une plaquette de support de garniture (5) portant une garniture de friction (4) d'une plaquette de frein (2), ce qui entraîne l'éloignement radial de l'axe du disque de frein et le rapprochement contre un étrier de retenue de garniture (3) maintenu dans un étrier de frein (1). La fixation de plaquette de frein est réalisée de manière à ce que le ressort de retenue de garniture (6) soit formé par un fil de fer et que la fixation du ressort de retenue de garniture soit formée par une goupille (8).
PCT/EP2008/050660 2007-01-26 2008-01-21 Fixation de plaquette de frein et plaquette de frein pour un frein à WO2008090131A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200710004012 DE102007004012A1 (de) 2007-01-26 2007-01-26 Bremsbelaghalterung und Bremsbelag für eine Scheibenbremse
DE102007004012.3 2007-01-26

Publications (1)

Publication Number Publication Date
WO2008090131A1 true WO2008090131A1 (fr) 2008-07-31

Family

ID=39247101

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/050660 WO2008090131A1 (fr) 2007-01-26 2008-01-21 Fixation de plaquette de frein et plaquette de frein pour un frein à

Country Status (2)

Country Link
DE (1) DE102007004012A1 (fr)
WO (1) WO2008090131A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013011655B4 (de) * 2013-07-12 2016-10-27 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Bremsbelaghalterung einer Scheibenbremse für ein Nutzfahrzeug
DE102021118770A1 (de) 2021-07-20 2023-01-26 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Bremsbelaghalterung einer Scheibenbremse

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2555271A3 (fr) * 1983-11-22 1985-05-24 Donetti B & A Metal Fren Snc Plaquette de friction pour freins a disque de vehicules automobiles
DE4006692A1 (de) * 1990-03-03 1991-09-05 Teves Gmbh Alfred Bremsbacke mit loesbarer feder, insbesondere niederhaltefeder
WO1994024455A1 (fr) * 1993-04-15 1994-10-27 Alliedsignal Europe Services Techniques Ensemble d'un element de friction equipe d'un ressort pour frein a disque
WO1998011359A1 (fr) * 1996-09-10 1998-03-19 Ferodo Bremsbelage Technik-Zentrum Gmbh Ensemble plaquette de frein
DE202005019875U1 (de) * 2004-12-20 2006-04-27 Pirro, Matteo, Vermezzo Feder für Reibbelag-Tragplatten

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4020287A1 (de) 1990-06-26 1992-01-02 Knorr Bremse Ag Belaghalterung in scheibenbremsen fuer strassenfahrzeuge, insbesondere nutzfahrzeuge

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2555271A3 (fr) * 1983-11-22 1985-05-24 Donetti B & A Metal Fren Snc Plaquette de friction pour freins a disque de vehicules automobiles
DE4006692A1 (de) * 1990-03-03 1991-09-05 Teves Gmbh Alfred Bremsbacke mit loesbarer feder, insbesondere niederhaltefeder
WO1994024455A1 (fr) * 1993-04-15 1994-10-27 Alliedsignal Europe Services Techniques Ensemble d'un element de friction equipe d'un ressort pour frein a disque
WO1998011359A1 (fr) * 1996-09-10 1998-03-19 Ferodo Bremsbelage Technik-Zentrum Gmbh Ensemble plaquette de frein
DE202005019875U1 (de) * 2004-12-20 2006-04-27 Pirro, Matteo, Vermezzo Feder für Reibbelag-Tragplatten

Also Published As

Publication number Publication date
DE102007004012A1 (de) 2008-07-31

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