FR2708066A1 - System intended to indicate that the acceptable limit of wear of drum brake linings has been reached, for any type of vehicle - Google Patents
System intended to indicate that the acceptable limit of wear of drum brake linings has been reached, for any type of vehicle Download PDFInfo
- Publication number
- FR2708066A1 FR2708066A1 FR9305600A FR9305600A FR2708066A1 FR 2708066 A1 FR2708066 A1 FR 2708066A1 FR 9305600 A FR9305600 A FR 9305600A FR 9305600 A FR9305600 A FR 9305600A FR 2708066 A1 FR2708066 A1 FR 2708066A1
- Authority
- FR
- France
- Prior art keywords
- rivet
- vehicle
- wear
- brake linings
- intended
- 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.)
- Pending
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
-
- 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
-
- 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
- F16D2066/001—Temperature
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
Description
La présente invention est un système fiable et simple destiné à informer qu'est atteinte la limite encore acceptable d'usure des garnitures de frein à tambour pour tout type de véhicule, et plus particulièrement destiné aux véhicules remorqués. The present invention is a reliable and simple system intended to inform that the still acceptable limit of wear of the drum brake linings has been reached for any type of vehicle, and more particularly intended for towed vehicles.
Ce système peut bien entendu être utilisé sur tout véhicule moteur, tracteurs, poids lourds, camionnettes, bus et même voitures particulières, équipés de freins à tambour. This system can of course be used on any motor vehicle, tractors, trucks, vans, buses and even passenger cars, fitted with drum brakes.
Les systèmes existants basés sur l'installation d'un détecteur sur les garnitures de frein à tambour principalement destinés aux poids lourds nécessitent un montage coûteux, et ne peuvent être appliqués aux véhicules remorqués car ils nécessitent une alimentation électrique constante. Existing systems based on the installation of a detector on the drum brake linings mainly intended for heavy goods vehicles require an expensive assembly, and cannot be applied to towed vehicles because they require a constant electrical supply.
Le présent système informe l'utilisateur lorsque les garnitures de frein ont atteint une épaisseur encore acceptable pour un court trajet, lui indiquant ainsi que la révision et éventuellement le remplacement des garnitures de frein sont à prévoir dans les plus brefs délais avant que les tambours ne viennent en contact avec les rivets standards de garnitures. La lecture de l'information se fait par l'intermédiaire d'une source lumineuse telle que LED située sur un boitier de visualisation étanche, fixé sur le coté de la remorque, et allumée lorsqu'il y a contact entre un rivet de détection rapporté à la place d'un rivet standard et le tambour de frein. This system informs the user when the brake linings have reached a thickness which is still acceptable for a short journey, thus indicating to him that the overhaul and possibly the replacement of the brake linings must be provided as soon as possible before the drums come in contact with standard trim rivets. The information is read via a light source such as LED located on a waterproof display box, fixed on the side of the trailer, and lit when there is contact between an attached detection rivet instead of a standard rivet and the brake drum.
Concernant les véhicules remorqués, l'information est active même lorsque le véhicule est décroché du tracteur et parqué, car la source d'énergie du boitier de visualisation est obtenue au moyen de piles-batteries rechargées automatiquement lorsque le véhicule ( remorque ) est rattaché au tracteur. Le boitier de visualisation sera équipé de préférence de trois sources lumineuses telles que LED permettant de contrôler l'usure des garnitures pour les remorques équipées de un à trois essieux. Regarding towed vehicles, the information is active even when the vehicle is unhooked from the tractor and parked, because the power source of the display unit is obtained by means of batteries recharged automatically when the vehicle (trailer) is attached to the tractor. The display unit will preferably be equipped with three light sources such as LEDs to control the wear of the linings for trailers fitted with one to three axles.
Le montage du système ne nécessite pas de modification des pièces existantes aux freins standards; il est aussi suffisant de n'utiliser qu'un seul rivet de détection par roue. The assembly of the system does not require modification of the existing parts to standard brakes; it is also sufficient to use only one detection rivet per wheel.
A titre d'illustration, des dessins sont joints qui représentent
- Figure I : le montage du rivet de détection sur les garnitures de frein;
- Figure 2 : le schéma de raccordement électrique du système.By way of illustration, drawings are attached which represent
- Figure I: mounting the detection rivet on the brake linings;
- Figure 2: the electrical connection diagram of the system.
En référence à ces dessins, le dispositif est constitué ( fig 1 ) d'un rivet (1), isolé par rapport au support de garniture (6), à l'aide d'une gaine (2), et d'une rondelle isolante (3). Après rivetage de la ganiture (7), le contact électrique s'opère à l'aide d'une rondelle de cuivre (4), sur laquelle est soudé un fil électrique (5) destiné à acheminer l'information d'usure au boitier de visualisation (9), par l'intermédiaire de connecteur (8) ( fig 2 ). With reference to these drawings, the device consists (fig 1) of a rivet (1), insulated from the lining support (6), using a sheath (2), and a washer insulating (3). After riveting the cover (7), the electrical contact is made using a copper washer (4), on which is welded an electric wire (5) intended to convey the wear information to the case. display (9), via connector (8) (fig 2).
La figure 2 représente le schéma de raccordement électrique dans le cas d'un véhicule remorqué à trois essieux (14). Le boitier (9), est équipé de trois LED (10), de couleur rouge, lesquelles en s'allumant informe l'utilisateur de l'usure avancée des garnitures de frein (7). FIG. 2 represents the electrical connection diagram in the case of a towed vehicle with three axles (14). The housing (9) is equipped with three red LEDs (10) which, when lit, inform the user of the advanced wear of the brake linings (7).
Le boitier (9), est raccordé au + constant à l'aide d'un fil électrique (12), et à la masse (13), grâce à la fixation propre du boitier (9), sur le chassis de la remorque. Afin de vérifier le bon état, ainsi que la charge des piles batteries situées à l'intérieur du boitier (9), un système de contrôle de charge est constitué d'un bouton poussoir (15), lequel étant actionné permet d'allumer une lampe témoin du type LED (11), de couleur verte. The box (9) is connected to the constant + using an electric wire (12), and to the ground (13), thanks to the clean fixing of the box (9), to the chassis of the trailer. In order to check the good state, as well as the charge of the batteries located inside the case (9), a charge control system consists of a push button (15), which being activated allows to light a LED type indicator lamp (11), green in color.
Ainsi l'invention vise un système destiné d'une part à informer qu'est atteinte la limite acceptable d'usure des garnitures de frein à tambour pour tout type de véhicules par exemple les voitures particulières, bus, camions, camionnettes et remorques, caractérisé en ce qu'il est constitué, d'une part, d'un rivet (1) isolé électriquement (2) (3) implanté dans le logement standard (16) prévu pour le rivetage des garnitures de frein à tambour (7) et en ce que d'autre part, ce rivet est relié par une rondelle cuivre(4) et un fil électrique (5) à un boitier de réception (9) pourvu de moyen de visualisation (10) au circuit électrique du véhicule correspondant jusqu'au tableau de bord. Thus, the invention relates to a system intended on the one hand to inform that the acceptable wear limit of the drum brake linings has been reached for all types of vehicles, for example passenger cars, buses, trucks, vans and trailers, characterized in that it consists, on the one hand, of an electrically insulated rivet (1) (2) (3) installed in the standard housing (16) provided for riveting the drum brake linings (7) and in that, on the other hand, this rivet is connected by a copper washer (4) and an electric wire (5) to a reception box (9) provided with display means (10) to the electric circuit of the corresponding vehicle up to on the dashboard.
Selon d'autres caractéristiques
- le boitier de réception (9) comporte des moyens d'alimentation électrique du type pile-batterie de sorte à être autonome, et être de ce fait utilisé sur des remorques tractées même si celles-ci sont détachées du tracteur;
- le boitier (9) comporte un bouton poussoir (15) de contrôle de la charge par une lampe (Il);
- le rivet (1) isolé (2) (3), est misà la place d'un rivet standard, logé dans le premier tiers de la garniture (7) compressée, et dont la tête est au moins de 1 millimètre plus haut que les autres rivets, ceci afin d'assurer en préliminaire le contact avec le tambour au niveau d'usure de garniture désiré, celui-ci étant réalise de la même manière, en cuivre électrolytique;
- le rivet (1) de détection est isolé électriquement par rapport au support de garniture (6) par une gaine (2) et une rondelle (3) disposée entre celui-ci et la rondelle cuivre (4) sous la partie rabattue du rivet (1), cette isolation acceptant les montées en température dues au freinage;
- le boitier de visualisation (9) destiné à être monté sur des remorques et équipé de piles-batteries, et est pourvu d'un fil électrique relié à la borne positive de La pilebatteric destiné à être
relié au + constant du véhicule de sorte à réalimenter les piles batteries rechargeables en courant lorsque la remorque est rattachée au véhicule tracteur. According to other characteristics
- The receiving unit (9) comprises means of electrical supply of the battery-battery type so as to be autonomous, and therefore be used on towed trailers even if these are detached from the tractor;
- the housing (9) comprises a push button (15) for controlling the charge by a lamp (II);
- the isolated rivet (1) (2) (3) is replaced by a standard rivet, housed in the first third of the compressed gasket (7), the head of which is at least 1 millimeter higher than the other rivets, this in order to ensure preliminary contact with the drum at the desired level of wear on the lining, the latter being produced in the same way, in electrolytic copper;
- the detection rivet (1) is electrically isolated from the lining support (6) by a sheath (2) and a washer (3) disposed between the latter and the copper washer (4) under the folded part of the rivet (1), this insulation accepting temperature rises due to braking;
- the display unit (9) intended to be mounted on trailers and fitted with battery cells, and is provided with an electric wire connected to the positive terminal of La pilebatteric intended to be
connected to the vehicle's constant + so as to replenish the rechargeable batteries with current when the trailer is attached to the towing vehicle.
Claims (6)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9305600A FR2708066A1 (en) | 1993-05-10 | 1993-05-10 | System intended to indicate that the acceptable limit of wear of drum brake linings has been reached, for any type of vehicle |
FR9307658A FR2708319A1 (en) | 1993-05-10 | 1993-06-23 | System intended on the one hand to indicate that the limit of wear of drum brake linings has been reached for any vehicle, and to indicate the temperature of the linings |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9305600A FR2708066A1 (en) | 1993-05-10 | 1993-05-10 | System intended to indicate that the acceptable limit of wear of drum brake linings has been reached, for any type of vehicle |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2708066A1 true FR2708066A1 (en) | 1995-01-27 |
Family
ID=9446970
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9305600A Pending FR2708066A1 (en) | 1993-05-10 | 1993-05-10 | System intended to indicate that the acceptable limit of wear of drum brake linings has been reached, for any type of vehicle |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2708066A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0704639A1 (en) * | 1994-08-10 | 1996-04-03 | Ferodo Limited | Brake wear indicator |
CN109642619A (en) * | 2016-09-02 | 2019-04-16 | 株式会社艾科赛迪 | Die clutch construction body and clutch disk assemble body |
-
1993
- 1993-05-10 FR FR9305600A patent/FR2708066A1/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0704639A1 (en) * | 1994-08-10 | 1996-04-03 | Ferodo Limited | Brake wear indicator |
CN109642619A (en) * | 2016-09-02 | 2019-04-16 | 株式会社艾科赛迪 | Die clutch construction body and clutch disk assemble body |
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