FR2485134A2 - Disc brake pad wear indicator - has conductor completing alarm circuit through disc upon wear of covering insulation - Google Patents
Disc brake pad wear indicator - has conductor completing alarm circuit through disc upon wear of covering insulation Download PDFInfo
- Publication number
- FR2485134A2 FR2485134A2 FR8013892A FR8013892A FR2485134A2 FR 2485134 A2 FR2485134 A2 FR 2485134A2 FR 8013892 A FR8013892 A FR 8013892A FR 8013892 A FR8013892 A FR 8013892A FR 2485134 A2 FR2485134 A2 FR 2485134A2
- Authority
- FR
- France
- Prior art keywords
- disc
- wear
- indicator
- wear indicator
- edges
- 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.)
- Granted
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
- F16D66/00—Arrangements for monitoring working conditions, e.g. wear, temperature
- F16D66/02—Apparatus for indicating wear
- F16D66/021—Apparatus for indicating wear using electrical detection or indication means
- F16D66/022—Apparatus for indicating wear using electrical detection or indication means indicating that a lining is worn to minimum allowable thickness
- F16D66/023—Apparatus for indicating wear using electrical detection or indication means indicating that a lining is worn to minimum allowable thickness directly sensing the position of braking members
- F16D66/024—Sensors mounted on braking members adapted to contact the brake disc or drum, e.g. wire loops severed on contact
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
Description
Perfectionnement aux témoins d'usure pour plaquettes de freins. Improvement of wear indicators for brake pads.
La présente addition a pour objet un perfectionnement aux témoins d'usure pour plaquettes de freins. Le brevet principal concerne des témoins d'usure pour plaquettes de freins à disques, dans lesquels le témoin d'usure est constitué d'une plaquette en matière isolante dans laquelle est noyé un organe conducteur présentant une fiche de raccordement au circuit électrique de signalisation, ladite plaquette isolante étant montée de façon rapportée sur le support de la garniture de friction. The purpose of this addition is an improvement to the wear indicators for brake pads. The main patent relates to wear indicators for disc brake pads, in which the wear indicator consists of a plate of insulating material in which is embedded a conductive member having a plug for connection to the electrical signaling circuit, said insulating plate being mounted in an attached manner on the support of the friction lining.
La présente addition a pour but d'éviter l'utilisation d'une goupille ou d'un rivet engagé dans la paroi de la plaquette du témoin d'usure, tout en maintenant la plaquette prisonnière sur l'organe de support de la garniture de friction. The purpose of this addition is to avoid the use of a pin or a rivet engaged in the wall of the wear indicator plate, while keeping the plate captive on the support member of the lining. friction.
Conformément à la présente addition?la la plaquette isolante du témoin d'usure présente, sur l'un de ses bords, un étrier qui est engagé sur l'un des bords du support de garniture de friction et maintenu contre ledit bord par l'une des branches élastiques transversales d'un ressort en forme de croix dont une aile s'étendantsuivant le plan de symétrie du disque est montée sur des goupilles solidaires des plaques de support. In accordance with the present addition, the insulating plate of the wear indicator has, on one of its edges, a stirrup which is engaged on one of the edges of the friction lining support and held against said edge by the one of the elastic transverse branches of a cross-shaped spring, one wing extending along the plane of symmetry of the disc, is mounted on pins secured to the support plates.
D'autre caractéristiques et avantages de l'invention seront mieux compris à la lecture de la description qui va suivre d'un exemple de réalisation et en se référant aux dessins annexés, dans lesquels:
La figure 1 est une vue en élévation de face d'un mode de réalisation d'une plaquette de frein munie d'un témoin d'usure suivant l'addition.Other characteristics and advantages of the invention will be better understood on reading the following description of an embodiment and with reference to the appended drawings, in which:
Figure 1 is a front elevational view of an embodiment of a brake pad provided with a wear indicator according to the addition.
La figure 2 est une vue en plan du dispositif représenté à la figure 1. Figure 2 is a plan view of the device shown in Figure 1.
La figure 3 est une vue en coupe transversale du dispositif représenté à la figure 1
La figure 4 est une vue en élévation d'un autre mode de montage d'un témoin dtusure sur une plaquette de frein.Figure 3 is a cross-sectional view of the device shown in Figure 1
Figure 4 is an elevational view of another embodiment of a wear indicator on a brake pad.
La figure 5 est une vue en plan du dispositif représenté à la figure 4. FIG. 5 is a plan view of the device shown in FIG. 4.
La figure 6 est une vue en coupe transversale du dispositif representé à la figure 1. FIG. 6 is a cross-sectional view of the device shown in FIG. 1.
Aux figures 1, 2 et 3 on a représenté un disque de frein 6 qui est disposé entre deux plaquettes de freinage constituées d'une garniture de friction 4, 4a, fixées sur un organe de support métallique 5, 5a. Les organes de support 5, 5a sont montés de façon coulissante sur des goupilles 7, 7a engagées dans des trous 16, 16a des organes de support. In Figures 1, 2 and 3 there is shown a brake disc 6 which is disposed between two brake pads consisting of a friction lining 4, 4a, fixed on a metal support member 5, 5a. The support members 5, 5a are slidably mounted on pins 7, 7a engaged in holes 16, 16a of the support members.
Entre les organes de support 5, 5a est disposé un ressort 17 en forme de croix qui est constitué d'une branche élastique 17a exerçant une poussée sur les organes de support 5, 5a, ladite branche 17a étant fixée sur une aile 17b dont l'axe longitudinal est situé suivant le plan de symétrie du disque de friction 6, ladite aile 17b étant montée sur les goupilles 7, 7a sur lesquelles coulissent les organes de support. Between the support members 5, 5a is disposed a spring 17 in the form of a cross which consists of an elastic branch 17a exerting a pressure on the support members 5, 5a, said branch 17a being fixed on a wing 17b, the longitudinal axis is located along the plane of symmetry of the friction disc 6, said wing 17b being mounted on the pins 7, 7a on which the support members slide.
Les plaquettes isolantes des témoins d'usure 18, 18a sont munies d'un organe conducteur 19 noyé dans la paroi de la plaquette qui présente sur l'un de ses bords un étrier 20 qui est engagé sur l'un des bords de l'organe de support 5, 5a de garniture d'étanchéité. L'étriers 20 est maintenu en position contre le bord de l'organe de support 5, 5a par la patte repliée 17c qui présente un caractère d'élasticité. The insulating pads of the wear indicators 18, 18a are provided with a conductive member 19 embedded in the wall of the pad which has on one of its edges a stirrup 20 which is engaged on one of the edges of the support member 5, 5a for a seal. The stirrups 20 is held in position against the edge of the support member 5, 5a by the folded tab 17c which has an elastic character.
Aux figures 4, 5 et 6 on a représenté un autre mode de réalisation de l'invention dans lequel les organes de support 5, 5a sont prolongés par des bossages 21, 21a sur lesquels sont montés au moyen de rivets 22, 22a des ressorts en épingle à cheveux 23, 23a dont les extrémités sont en appui contre les parois d'un étrier de frein 24 qui présente des épaulements 24a, 24b contre lesquels sont en appui les bords inférieurs des organes de support. In Figures 4, 5 and 6 there is shown another embodiment of the invention in which the support members 5, 5a are extended by bosses 21, 21a on which are mounted by means of rivets 22, 22a of the springs hairpin 23, 23a, the ends of which bear against the walls of a brake caliper 24 which has shoulders 24a, 24b against which the lower edges of the support members bear.
Sur les bossages 21, 21a sont montées des plaquettes isolantes 25, 25a de témoins d'usure qui présentent deux étriers opposés 26, 27 qui sont engagés sur les bords du bossage 21, 21a. On the bosses 21, 21a are mounted insulating plates 25, 25a of wear indicators which have two opposite stirrups 26, 27 which are engaged on the edges of the boss 21, 21a.
La plaquette 25, 25a du témoin d'usure est maintenue prisonnière sur le bossage au moyen du rivet 22, 22a, du fait que ladite plaquette est engagée sur le bossage avant montage du rivet et du ressort. Comme décrit ci-dessus un organe conducteur 28, 28a noyé dans la paroi de la plaquette isolante 25, 25a est relié au circuit électrique de signalisation. The plate 25, 25a of the wear indicator is held captive on the boss by means of the rivet 22, 22a, because said plate is engaged on the boss before mounting the rivet and the spring. As described above, a conductive member 28, 28a embedded in the wall of the insulating plate 25, 25a is connected to the electrical signaling circuit.
Bien entendu diverses modifications peuvent etre apportées par l'home de l'art aux dispositifs ou procédés qui viennent dtetre décrits uniquement à titre d'exemple non limitatif, sans sortir du cadre de ltin- vention. Of course, various modifications can be made by those skilled in the art to the devices or methods which have just been described solely by way of nonlimiting example, without departing from the scope of the invention.
Claims (1)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8013892A FR2485134A2 (en) | 1980-06-23 | 1980-06-23 | Disc brake pad wear indicator - has conductor completing alarm circuit through disc upon wear of covering insulation |
EP19800401327 EP0026137B2 (en) | 1979-09-25 | 1980-09-18 | Brake pads wear indicator |
DE8080401327T DE3068608D1 (en) | 1979-09-25 | 1980-09-18 | Brake pads wear indicator |
ES495466A ES495466A0 (en) | 1979-09-25 | 1980-09-25 | IMPROVEMENTS IN WEAR INDICATORS FOR DISC BRAKE PADS |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8013892A FR2485134A2 (en) | 1980-06-23 | 1980-06-23 | Disc brake pad wear indicator - has conductor completing alarm circuit through disc upon wear of covering insulation |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2485134A2 true FR2485134A2 (en) | 1981-12-24 |
FR2485134B2 FR2485134B2 (en) | 1984-11-09 |
Family
ID=9243396
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8013892A Granted FR2485134A2 (en) | 1979-09-25 | 1980-06-23 | Disc brake pad wear indicator - has conductor completing alarm circuit through disc upon wear of covering insulation |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2485134A2 (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2385950A1 (en) * | 1977-03-28 | 1978-10-27 | Girling Ltd | SLIDING CLAMP DISC BRAKE |
-
1980
- 1980-06-23 FR FR8013892A patent/FR2485134A2/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2385950A1 (en) * | 1977-03-28 | 1978-10-27 | Girling Ltd | SLIDING CLAMP DISC BRAKE |
Also Published As
Publication number | Publication date |
---|---|
FR2485134B2 (en) | 1984-11-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
CD | Change of name or company name |