FR2755195A1 - Vehicle braking system - Google Patents

Vehicle braking system Download PDF

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Publication number
FR2755195A1
FR2755195A1 FR9613301A FR9613301A FR2755195A1 FR 2755195 A1 FR2755195 A1 FR 2755195A1 FR 9613301 A FR9613301 A FR 9613301A FR 9613301 A FR9613301 A FR 9613301A FR 2755195 A1 FR2755195 A1 FR 2755195A1
Authority
FR
France
Prior art keywords
energy conversion
braking device
braking
support
braking force
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
Application number
FR9613301A
Other languages
French (fr)
Other versions
FR2755195B1 (en
Inventor
Jean Pierre Boisseau
Jean Claude Mery
Jean Charles Maligne
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.)
Bosch Systemes de Freinage SAS
Original Assignee
Bosch Systemes de Freinage SAS
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 Bosch Systemes de Freinage SAS filed Critical Bosch Systemes de Freinage SAS
Priority to FR9613301A priority Critical patent/FR2755195B1/en
Publication of FR2755195A1 publication Critical patent/FR2755195A1/en
Application granted granted Critical
Publication of FR2755195B1 publication Critical patent/FR2755195B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • F16D63/00—Brakes not otherwise provided for; Brakes combining more than one of the types of groups F16D49/00 - F16D61/00
    • F16D63/004—Brakes not otherwise provided for; Brakes combining more than one of the types of groups F16D49/00 - F16D61/00 comprising a rotor engaged both axially and radially by braking members, e.g. combined drum and disc brakes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B27/00—Hubs
    • B60B27/0005—Hubs with ball bearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B27/00—Hubs
    • B60B27/0047—Hubs characterised by functional integration of other elements
    • B60B27/0052—Hubs characterised by functional integration of other elements the element being a brake disc
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B27/00—Hubs
    • B60B27/0047—Hubs characterised by functional integration of other elements
    • B60B27/0057—Hubs characterised by functional integration of other elements the element being a brake drum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
    • B60B35/02—Dead axles, i.e. not transmitting torque
    • B60B35/06—Dead axles, i.e. not transmitting torque cranked
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B37/00—Wheel-axle combinations, e.g. wheel sets
    • B60B37/10—Wheel-axle combinations, e.g. wheel sets the wheels being individually rotatable around the axles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T1/00—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles
    • B60T1/02—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels
    • B60T1/06—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels
    • B60T1/065—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels employing disc
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T1/00—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles
    • B60T1/02—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels
    • B60T1/06—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels
    • B60T1/067—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels employing drum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D7/00—Steering linkage; Stub axles or their mountings
    • 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
    • F16D51/00—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like
    • F16D51/16—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis
    • F16D51/18—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis with two brake-shoes
    • F16D51/20—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis with two brake-shoes extending in opposite directions from their pivots
    • F16D51/24—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis with two brake-shoes extending in opposite directions from their pivots fluid actuated
    • 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
    • F16D55/22—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 by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads
    • F16D55/224—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 by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members
    • F16D55/225—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 by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads
    • F16D55/226—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 by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads in which the common actuating member is moved axially, e.g. floating caliper disc brakes
    • F16D55/2265—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 by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads in which the common actuating member is moved axially, e.g. floating caliper disc brakes the axial movement being guided by one or more pins engaging bores in the brake support or the brake housing
    • F16D55/227—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 by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads in which the common actuating member is moved axially, e.g. floating caliper disc brakes the axial movement being guided by one or more pins engaging bores in the brake support or the brake housing by two or more pins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B2310/00—Manufacturing methods
    • B60B2310/30—Manufacturing methods joining
    • B60B2310/305—Manufacturing methods joining by screwing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B2380/00—Bearings
    • B60B2380/10—Type
    • B60B2380/12—Ball bearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B2900/00—Purpose of invention
    • B60B2900/30—Increase in
    • B60B2900/321—Lifetime
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2200/00—Indexing codes relating to suspension types
    • B60G2200/40—Indexing codes relating to the wheels in the suspensions
    • B60G2200/46—Indexing codes relating to the wheels in the suspensions camber angle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2200/00—Indexing codes relating to suspension types
    • B60G2200/40—Indexing codes relating to the wheels in the suspensions
    • B60G2200/462—Toe-in/out
    • B60G2200/4622—Alignment adjustment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/50—Constructional features of wheel supports or knuckles, e.g. steering knuckles, spindle attachments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/10—Road Vehicles
    • B60Y2200/11—Passenger cars; Automobiles
    • 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
    • F16D2055/0008—Brake supports
    • 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
    • F16D2055/0008—Brake supports
    • F16D2055/0012—Brake supports integral with vehicle suspension

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Braking Arrangements (AREA)

Abstract

The system comprises an energy conversion part (3) fixed to the rotating wheel (4). A second energy conversion part (10) can be controlled to selectively receive a braking force from the first energy conversion part. A support (8) fixed to a beam (2) receives the braking force on the second part. The first energy conversion part comprises a disc (31) and the second part comprises a pad (101a). The activator (9) comprises a piston moving in a cylinder (912) integral with a stirrup (91). The wheel stub axle (1) and the support are in a single monobloc piece. The stub axle is mounted on the beam by an end which is encastred in a beam housing. A hub (6) is fixed to and rotates with the first energy conversion part and a roller bearing guide (5) is interposed between the hub and the stub axle.

Description

DISPOSITIF DE FREINAGE INTEGRE A RIGIDITE ACCRUE
La présente invention concerne un dispositif de freinage pour un véhicule automobile doté d'au moins une roue montée à rotation autour d'un premier axe sur une fusée reliée à un longeron du véhicule, ce dispositif comprenant: - au moins un premier organe de conversion d'énergie, solidaire de la roue en rotation; - au moins un second organe de conversion d'énergie susceptible d'être commandé pour recevoir sélectivement un effort de freinage de la part du premier organe de conversion d'énergie; - un actionneur propre à commander le second organe; - et un support fixe par rapport au longeron, propre à absorber l'effort de freinage s'exerçant sélectivement sur le second organe.INTEGRATED BRAKING DEVICE WITH INCREASED RIGIDITY
The present invention relates to a braking device for a motor vehicle provided with at least one wheel rotatably mounted about a first axis on a rocket connected to a side member of the vehicle, this device comprising: - at least a first conversion member of energy, integral with the rotating wheel; - At least one second energy conversion device capable of being controlled to selectively receive a braking force from the first energy conversion device; - an actuator capable of controlling the second member; - And a fixed support relative to the spar, adapted to absorb the braking force selectively exerted on the second member.

De tels freins sont bien connus dans l'art antérieur, comme le montrent par exemple les documents DE 3703 395, US 40 61 429 ou WO 9603 594. Such brakes are well known in the prior art, as shown for example in documents DE 3703 395, US 40 61 429 or WO 9603 594.

L'un des problèmes très anciens qui se pose pour l'ensemble de ces dispositifs est l'apparition de déformations génératrices d'usure, de vibrations et de bruit, qui affectent les pièces intervenant dans la transmission de l'effort de freinage entre le second organe de conversion d'énergie et le longeron du véhicule. One of the very old problems which arises for all of these devices is the appearance of deformations generating wear, vibrations and noise, which affect the parts involved in the transmission of the braking force between the second energy conversion unit and the vehicle side member.

Un autre problème est relatif au fait que le montage de ces dispositifs sur véhicule ne peut se faire qu'élément par élément, la conception interdisant la réalisation d'un ensemble complet assemblé séparément pour être monté directement sur véhicule sans recours à des pièces intermédiaires. Another problem relates to the fact that the mounting of these devices on a vehicle can only be done element by element, the design prohibiting the production of a complete assembly assembled separately to be mounted directly on the vehicle without recourse to intermediate parts.

Enfin, la conception très variée de ces dispositifs, n'autorise pas leur interchangeabilité, qui serait pourtant précieuse pour les constructeurs qui cherchent toujours à élargir la gamme et les performances de leurs véhicules à partir de chassis identiques. Finally, the very varied design of these devices, does not allow their interchangeability, which would however be precious for manufacturers who are always looking to expand the range and performance of their vehicles from identical chassis.

L'invention se situe dans ce contexte et a pour but de proposer un dispositif de freinage de structure simple, susceptible de résoudre l'un au moins des problèmes précédemment évoqués. The invention is situated in this context and aims to propose a braking device of simple structure, capable of solving at least one of the problems mentioned above.

A cette fin, le dispositif de l'invention, par ailleurs conforme au préambule ci-dessus, est essentiellement caractérisé en ce que la fusée et le support appartiennent à une seule et même pièce monobloc. To this end, the device of the invention, moreover in accordance with the preamble above, is essentially characterized in that the rocket and the support belong to a single and single piece.

Dans un mode de réalisation typique de l'invention, la fusée est montée de façon amovible sur le longeron par une première extrémité, suivant le premier axe, et cette première extrémité de la fusée s'encastre dans un logement du longeron. In a typical embodiment of the invention, the rocket is removably mounted on the spar by a first end, along the first axis, and this first end of the rocket fits into a housing in the spar.

Le dispositif comprend en outre un moyeu solidaire en rotation du premier organe de conversion d'énergie, et des moyens de roulement et de guidage interposés entre la fusée et le moyeu. The device further comprises a hub integral in rotation with the first energy conversion member, and rolling and guiding means interposed between the rocket and the hub.

Il est avantageux, pour augmenter la rigidité du support, de prévoir que ce dernier soit conformé en collerette s'étendant dans un plan sensiblement perpendiculaire au premier axe et percée d'au moins deux trous de fixation permettant son montage sur le longeron.  It is advantageous, to increase the rigidity of the support, to provide that the latter is shaped as a flange extending in a plane substantially perpendicular to the first axis and pierced with at least two fixing holes allowing its mounting on the spar.

Dans l'une des applications privilégiées de l'invention, le premier organe de conversion d'énergie comprend un disque, le second organe de conversion d'énergie comprend au moins un patin, tandis que l'actionneur comprend un piston mobile dans un cylindre intégré à un étrier. In one of the preferred applications of the invention, the first energy converting member comprises a disc, the second energy converting member comprises at least one shoe, while the actuator comprises a piston movable in a cylinder integrated in a stirrup.

Il est alors avantageux, dans une telle application, de prévoir que la collerette s'étende radialement pour former deux bras disposés en V, et que chaque bras présente une extrémité conformée en glissière recevant à coulissement une extrémité correspondante du patin pour pouvoir absorber l'effort de freinage s'exerçant sélectivement sur le patin. It is then advantageous, in such an application, to provide that the flange extends radially to form two arms arranged in a V, and that each arm has an end shaped as a slide receiving, slidingly, a corresponding end of the pad in order to be able to absorb the braking force exerted selectively on the shoe.

Il convient également de prévoir que l'extrémité de l'un des bras au moins présente, en outre, des moyens pour guider ledit étrier suivant une direction parallèle au premier axe. It should also be provided that the end of one of the arms at least has, in addition, means for guiding said stirrup in a direction parallel to the first axis.

Dans une autre application de l'invention, I'actionneur comprend un cylindre de roue, tandis que le premier organe de conversion d'énergie comprend un tambour, le second organe de conversion d'énergie comprenant au moins un segment de frein. In another application of the invention, the actuator comprises a wheel cylinder, while the first energy conversion member comprises a drum, the second energy conversion member comprising at least one brake segment.

Dans ce cas, il est avantageux de prévoir que la collerette s'étende radialement pour former un bossage offrant un appui au segment de frein pour pouvoir absorber l'effort de freinage s'exerçant sélectivement sur le segment de frein. In this case, it is advantageous to provide that the collar extends radially to form a boss providing support for the brake segment in order to be able to absorb the braking force selectively exerted on the brake segment.

D'autres caractéristiques et avantages de l'invention ressortiront clairement de la description qui en est faite ci-après, à titre indicatif et nullement limitatif, en référence aux dessins annexés, dans lesquels:
- Les Figures 1 et 2 sont des vues axiales de dispositifs de freinage conformes à l'art antérieur.Other characteristics and advantages of the invention will emerge clearly from the description given below, by way of indication and in no way limitative, with reference to the appended drawings, in which:
- Figures 1 and 2 are axial views of braking devices according to the prior art.

- La Figure 3 est une vue axiale d'un premier dispositif de freinage conforme à la présente invention;
- La Figure 4 est une vue en perspective du support fixe du dispositif de la Figure 3;
- La Figure 5 est une vue axiale d'un second dispositif de freinage conforme à l'invention;
- La Figure 6 est une vue en perspective du support fixe du dispositif de la Figure 5;
- La Figure 7 est une vue axiale d'un troisième dispositif de freinage conforme à l'invention;
- La Figure 8 est une vue en perspective du support fixe du dispositif de la Figure 7; et
- La Figure 9 est une vue axiale d'un quatrième dispositif de freinage conforme à l'invention;
La Figure 1 représente l'implantation sur véhicule d'un frein à disque, tandis que la
Figure 2 représente celle d'un frein à tambour, I'invention étant notamment applicable à ces deux types de freins connus, dont les principaux organes seront rapidement rappelés ci-après de façon à mieux mettre en évidence les éléments originaux de l'invention.- Figure 3 is an axial view of a first braking device according to the present invention;
- Figure 4 is a perspective view of the fixed support of the device of Figure 3;
- Figure 5 is an axial view of a second braking device according to the invention;
- Figure 6 is a perspective view of the fixed support of the device of Figure 5;
- Figure 7 is an axial view of a third braking device according to the invention;
- Figure 8 is a perspective view of the fixed support of the device of Figure 7; and
- Figure 9 is an axial view of a fourth braking device according to the invention;
Figure 1 shows the installation on a vehicle of a disc brake, while the
Figure 2 shows that of a drum brake, the invention being particularly applicable to these two types of known brakes, the main members of which will be briefly recalled below so as to better highlight the original elements of the invention.

Dans le cas des dispositifs de freinage connus tels que représentés sur les Figures 1 et 2, une fusée 1 implantée à force dans un longeron 2 du véhicule supporte à rotation, autour d'un premier axe X, un premier organe de conversion d'énergie 3, ce dernier prenant la forme d'un disque 31 dans le cas de la Figure 1 et la forme d'un tambour 32 dans le cas de la Figure 2. In the case of known braking devices as shown in FIGS. 1 and 2, a rocket 1 implanted by force in a side member 2 of the vehicle rotatably supports, around a first axis X, a first energy conversion member 3, the latter taking the form of a disc 31 in the case of FIG. 1 and the shape of a drum 32 in the case of FIG. 2.

Dans les deux cas, ce premier organe de conversion d'énergie 3 est solidaire d'un moyeu 6 assujetti à la roue 4 du véhicule au moyen de boulons 7, et supporté à rotation sur la fusée 1 par l'intermédiaire de roulements 5. Par ailleurs, un support 8, fixé sur une extrémité du longeron 2 à l'endroit où la frisée 1 en fait saillie, porte un actionneur 9. In both cases, this first energy conversion member 3 is integral with a hub 6 secured to the wheel 4 of the vehicle by means of bolts 7, and supported in rotation on the spindle 1 by means of bearings 5. Furthermore, a support 8, fixed on one end of the side member 2 at the point where the crimper 1 projects therefrom, carries an actuator 9.

Chacun des dispositifs de freinage auxquels l'invention peut s'appliquer, et notamment ceux illustrés aux Figures 1 et 2, comprend également un second organe de conversion d'énergie 10, propre à coopérer, sous la commande de l'actionneur 9, avec le premier organe de conversion d'énergie pour convertir l'énergie cinétique du véhicule en une autre forme d'énergie, en l'occurrence en une énergie thermique résultant du frottement mutuel des organes 3 et 10, mais éventuellement en toute autre forme d'énergie, et par exemple en énergie électrique. Each of the braking devices to which the invention can be applied, and in particular those illustrated in Figures 1 and 2, also includes a second energy conversion member 10, capable of cooperating, under the control of the actuator 9, with the first energy conversion device to convert the kinetic energy of the vehicle into another form of energy, in this case into thermal energy resulting from the mutual friction of organs 3 and 10, but possibly into any other form of energy, and for example in electrical energy.

Dans le cas du dispositif de freinage à disque de la Figure 1, le support 8 prend la forme d'une chape 81, tandis que l'actionneur prend la forme d'un étrier 91 monté coulissant, suivant la direction de l'axe X, sur une colonnette 86 solidaire de la chape 81. In the case of the disc braking device of Figure 1, the support 8 takes the form of a yoke 81, while the actuator takes the form of a caliper 91 slidably mounted, in the direction of the axis X , on a small column 86 secured to the yoke 81.

L'étrier 91 présente, d'un côté du disque, un nez 911 et, de l'autre côté du disque, un cylindre 912 dans lequel un piston 913 peut coulisser sous l'effet d'une pression hydraulique de freinage, ce piston n'étant pas visible sur la Figure l mais seulement sur les Figures 3 et 7. The caliper 91 has, on one side of the disc, a nose 911 and, on the other side of the disc, a cylinder 912 in which a piston 913 can slide under the effect of hydraulic braking pressure, this piston not being visible in Figure 1 but only in Figures 3 and 7.

Toujours dans le cas du dispositif de freinage de la Figure 1, le second organe de conversion d'énergie prend la forme de deux patins 101 a, 101 b, qui sont respectivement tournés vers une face correspondante du disque 31, et qui se trouvent enserrés, suivant la direction de l'axe X, entre le nez 911 de l'étrier 91 et le piston 913 pour pouvoir être contraints à frotter contre le disque 3 1 par actionnement de l'étrier 91. Still in the case of the braking device of FIG. 1, the second energy conversion member takes the form of two pads 101 a, 101 b, which are respectively turned towards a corresponding face of the disc 31, and which are enclosed , in the direction of the X axis, between the nose 911 of the caliper 91 and the piston 913 in order to be able to be forced to rub against the disc 3 1 by actuation of the caliper 91.

Enfin, la chape 81 offre à chacun des patins 101 a, 101 b un appui qui d'une part permet de maintenir ces patins fixes suivant une direction tangentielle au disque, autrement dit perpendiculairement au plan de la Figure 1, et qui d'autre part permet à la chape, par voie de conséquence, d'absorber l'effort de freinage que le disque 31 en rotation transmet aux patins 101a, 101b lorsque ces derniers sont appuyés contre ce disque, autrement dit de développer une force de réaction s'opposant à cet effort de freinage. Finally, the yoke 81 offers each of the pads 101 a, 101 b a support which on the one hand makes it possible to maintain these fixed pads in a direction tangential to the disc, in other words perpendicular to the plane of Figure 1, and which other part allows the yoke, consequently, to absorb the braking force that the rotating disc 31 transmits to the pads 101a, 101b when the latter are pressed against this disc, in other words to develop a reaction force s' opposing this braking force.

Dans le cas du dispositif de freinage à disque de la Figure 2, le support 8 prend la forme d'un plateau 82 sur lequel sont ancrés un point fixe 83 et l'actionneur 9, ce dernier prenant la forme d'un cylindre de roue 92. In the case of the disc brake device of Figure 2, the support 8 takes the form of a plate 82 on which are anchored a fixed point 83 and the actuator 9, the latter taking the form of a wheel cylinder 92.

Le second organe de conversion d'énergie 10 est alors essentiellement composé de deux segments de frein tels que 102a susceptibles d'être écartés radialement par le cylindre de roue 92 pour venir frotter sur le tambour 32, le point fixe 83 offrant aux segments un appui permettant d'absorber l'effort de freinage que le tambour en rotation transmet aux segment s lorsque ces derniers sont appuyés sur le tambour. The second energy conversion member 10 is then essentially composed of two brake segments such as 102a which can be moved apart radially by the wheel cylinder 92 to rub on the drum 32, the fixed point 83 providing the segments with support making it possible to absorb the braking force which the rotating drum transmits to the segments when the latter are pressed on the drum.

Ces caractéristiques connues ayant été rappelées, l'invention sera maintenant plus facilement comprise à l'aide des Figures 3 à 9 dont chacune, pour des raisons de clarté, affecte à tout composant déjà fonctionnellement évoqué précédemment le même chiffre de référence que sur les Figures 1 et 2. These known characteristics having been recalled, the invention will now be more easily understood with the aid of Figures 3 to 9, each of which, for reasons of clarity, assigns to any component already functionally mentioned previously the same reference number as in the Figures 1 and 2.

Selon l'invention, comme le montre chacune des Figures 3 à 9, la fusée 1 et le support 8 appartiennent à une seule et même pièce monobloc, cette caractéristique permettant de réduire de façon très sensible l'usure, les vibrations et le bruit qui affectent généralement ce type de dispositif. According to the invention, as shown in each of FIGS. 3 to 9, the rocket 1 and the support 8 belong to one and the same single piece, this characteristic making it possible to reduce wear, vibrations and noise very significantly. generally affect this type of device.

De préférence, une première extrémité la de la fusée l est encastrée de façon amovible, suivant la direction de l'axe X, dans un logement 2a du longeron 2, et le support 8 adopte la forme d'une collerette 80 qui s'étend radialement dans un plan perpendiculaire à l'axe X, dont une face vient en appui contre le longeron, et qui est percée d'au moins deux trous de fixation 84 coopérant avec des vis 85 pour assurer son montage sur le longeron.2. Preferably, a first end 1a of the rocket 1 is removably embedded, in the direction of the axis X, in a housing 2a of the beam 2, and the support 8 takes the form of a flange 80 which extends radially in a plane perpendicular to the axis X, one face of which bears against the spar, and which is pierced with at least two fixing holes 84 cooperating with screws 85 to ensure its mounting on the spar. 2.

n est en outre avantageux de prévoir, comme le montrent les Figures 3, 5, 7, et 9, que le moyeu 6 soit rendu solidaire en rotation du premier organe de conversion d'énergie 3, par exemple au moyen de goujons 71 servant à fixer la roue, plutôt que d'appartenir à la même pièce que cet organe 3, la solution illustrée sur ces figures permettant notamment une plus grande liberté dans le choix des matériaux constitutifs du moyeu et du premier organe de conversion d'énergie. It is also advantageous to provide, as shown in FIGS. 3, 5, 7 and 9, that the hub 6 is made integral in rotation with the first energy conversion member 3, for example by means of studs 71 serving to fix the wheel, rather than belonging to the same part as this member 3, the solution illustrated in these figures allowing in particular greater freedom in the choice of materials constituting the hub and the first energy conversion member.

Les Figures 3 et 4 illustrent l'application de l'enseignement de l'invention au cas d'un frein à disque. Figures 3 and 4 illustrate the application of the teaching of the invention in the case of a disc brake.

Dans ce cas, comme le montre la Figure 4, la collerette 80 s'étend radialement pour former deux bras 80a, 80b disposés en V, et chaque bras présente une extrémité 801 localement conformée en glissière 802 pour recevoir à coulissement les patins 101a, 101b et absorber l'effort de freinage s'exerçant sélectivement sur ces patins. In this case, as shown in FIG. 4, the flange 80 extends radially to form two arms 80a, 80b arranged in a V, and each arm has an end 801 locally shaped as a slide 802 for slidingly receiving the pads 101a, 101b and absorb the braking force exerted selectively on these pads.

L'un des bras au moins présente en outre à son extrémité des moyens de guidage, tels qu'un logement cylindrique 803 destiné à recevoir une colonnette (non représentée) propre à guider l'étrier suivant une direction parallèle à l'axe X. At least one of the arms also has guide means at its end, such as a cylindrical housing 803 intended to receive a column (not shown) suitable for guiding the stirrup in a direction parallel to the axis X.

Les Figures 5 et 6 illustrent l'application de l'enseignement de l'invention au cas d'un frein à tambour. Figures 5 and 6 illustrate the application of the teaching of the invention in the case of a drum brake.

Dans ce cas, comme le montre la Figure 6, la collerette 80 s'étend radialement pour former un bossage 80c offrant un appui aux segments de frein tels que 1 02a pour pouvoir absorber l'effort de freinage s'exerçant sélectivement sur ces segments. In this case, as shown in Figure 6, the flange 80 extends radially to form a boss 80c providing support to the brake shoes such as 10a to be able to absorb the braking force exerted selectively on these shoes.

La Figure 7 illustre l'application de l'enseignement de l'invention au cas d'un frein dans lequel le premier organe 3 de conversion d'énergie comprend à la fois un disque 31 et un tambour 32, ce type de frein étant connu de l'homme de l'art sous l'appellation anglo-saxone de "drum in hat".  FIG. 7 illustrates the application of the teaching of the invention to the case of a brake in which the first energy converting member 3 comprises both a disc 31 and a drum 32, this type of brake being known of those skilled in the art under the Anglo-Saxon name of "drum in hat".

Dans une telle application, le support 8, comme représenté sur la Figure 8, comprend à la fois deux bras 80a, 80b, totalement homologues dans leur structure et leur fonction des bras du support illustré à la Figure 4, et un bossage 80c fonctionnellement équivalent à celui qu'illustre la Figure 6. In such an application, the support 8, as shown in Figure 8, includes both two arms 80a, 80b, totally homologous in their structure and their function of the arms of the support illustrated in Figure 4, and a functionally equivalent boss 80c to that shown in Figure 6.

Dans le cas où le premier organe de conversion d'énergie 3 comprend un tambour, et comme le montrent les Figures 6 et 8, la collerette 80 peut présenter des faces en surplomb 804, parallèles au plan de pose de la collerette sur le longeron, et sur lesquelles les segments de frein peuvent glisser lorsqu'ils sont sollicités en direction du tambour 32. In the case where the first energy converting member 3 comprises a drum, and as shown in FIGS. 6 and 8, the flange 80 may have overhanging faces 804, parallel to the plane of installation of the flange on the spar, and on which the brake shoes can slide when they are applied in the direction of the drum 32.

Enfin, la Figure 9 représente l'application de l'enseignement de l'invention à un dispositif de freinage dans lequel le moyeu 6 est disposé à l'intérieur de la fusée 1, cette disposition étant d'ailleurs applicable aux dispositifs décrits en référence aux Figures 3, 5, et 7. Finally, Figure 9 represents the application of the teaching of the invention to a braking device in which the hub 6 is disposed inside the rocket 1, this arrangement being moreover applicable to the devices described with reference in Figures 3, 5, and 7.

Grâce aux caractéristiques de l'invention, illustrées dans les différents types de dispositifs de freinage décrits ci-dessus, les efforts de frottement exercés par le premier organe de conversion d'énergie 3 sur le second organe d'énergie 10 sont directement transmis au longeron par le support fixe 8, sans organe intermédiaire. Thanks to the characteristics of the invention, illustrated in the different types of braking devices described above, the friction forces exerted by the first energy conversion member 3 on the second energy member 10 are directly transmitted to the spar. by the fixed support 8, without an intermediate member.

Par ailleurs, la conception de dispositifs de freinage proposés par l'invention permet d'effectuer l'assemblage complet de chacun de ces dispositifs en dehors du véhicule, puis de procéder à leur montage final sur véhicule en une seule opération particulièrement simple, dans la mesure où elle ne requiert que le serrage des vis de fixation 85. Furthermore, the design of braking devices proposed by the invention makes it possible to carry out the complete assembly of each of these devices outside the vehicle, then to proceed to their final mounting on the vehicle in a single particularly simple operation, in the since it only requires tightening the fixing screws 85.

Enfin, I'interface de montage sur véhicule étant maintenant unique, il devient possible d'échanger entre eux différents dispositifs de freinage, par exemple pour créer une nouvelle gamme de véhicules, sans remettre en cause les pièces de base telles que les longerons, ni nécessiter le recours à des adaptations coûteuses.  Finally, since the vehicle mounting interface is now unique, it becomes possible to exchange different braking devices between them, for example to create a new range of vehicles, without calling into question the basic parts such as the side members, or require the use of costly adaptations.

Claims (10)

REVENDICATIONS 1. Dispositif de freinage pour un véhicule automobile doté d'au moins une roue (4) montée à rotation autour d'un premier axe (X) sur une fusée (1) reliée à un longeron (2) du véhicule, ce dispositif comprenant: - au moins un premier organe de conversion d'énergie (3), solidaire de la roue en rotation; - au moins un second organe de conversion d'énergie (10) susceptible d'être commandé pour recevoir sélectivement un effort de freinage de la part du premier organe de conversion d'énergie (3); - un actionneur (9) propre à commander le second organe (10); - et un support (8) fixe par rapport au longeron (2), propre à recevoir l'effort de freinage s'exerçant sélectivement sur le second organe (10), caractérisé en ce que la frisée (1) et le support (8) appartiennent à une seule et même pièce monobloc. 1. Braking device for a motor vehicle provided with at least one wheel (4) rotatably mounted about a first axis (X) on a rocket (1) connected to a side member (2) of the vehicle, this device comprising : - at least a first energy conversion member (3), integral with the rotating wheel; - at least one second energy conversion device (10) capable of being controlled to selectively receive a braking force from the first energy conversion device (3); - an actuator (9) capable of controlling the second member (10); - And a support (8) fixed relative to the spar (2), suitable for receiving the braking force exerted selectively on the second member (10), characterized in that the crimper (1) and the support (8 ) belong to a single piece. 2. Dispositif de freinage suivant la revendication 1, caractérisé en ce que la frisée est montée de façon amovible sur le longeron (2) par une première extrémité (la), et en ce que cette première extrémité (la) de la frisée s'encastre, suivant le premier axe, dans un logement (2a) du longeron.2. Braking device according to claim 1, characterized in that the border is removably mounted on the beam (2) by a first end (la), and in that this first end (la) of the border embeds, along the first axis, in a housing (2a) of the spar. 3. Dispositif de freinage suivant la revendication 1 ou 2, caractérisé en ce qu'il comprend en outre un moyeu (6) solidaire en rotation du premier organe (3) de conversion d'énergie, et des moyens de roulement et de guidage (5) interposés entre la fusée et le moyeu.3. Braking device according to claim 1 or 2, characterized in that it further comprises a hub (6) integral in rotation with the first member (3) of energy conversion, and rolling and guiding means ( 5) interposed between the spindle and the hub. 4. Dispositif de freinage suivant l'une quelconque des revendications précédentes, caractérisé en ce que le support (8) est conformé en collerette (80) s'étendant dans un plan sensiblement perpendiculaire au premier axe (X) et percée d'au moins deux trous de fixation (84) permettant son montage sur le longeron (2).4. Braking device according to any one of the preceding claims, characterized in that the support (8) is shaped as a collar (80) extending in a plane substantially perpendicular to the first axis (X) and pierced with at least two fixing holes (84) allowing it to be mounted on the beam (2). 5. Dispositif de freinage suivant l'une quelconque des revendications précédentes, caractérisé en ce que le premier organe (3) de conversion d'énergie comprend un disque (31), en ce que le second organe (10) de conversion d'énergie comprend au moins un patin (lOla), et en ce que l'actionneur (9) comprend un piston (913) mobile dans un cylindre (912) intégré à un étrier (91). 5. Braking device according to any one of the preceding claims, characterized in that the first energy conversion member (3) comprises a disc (31), in that the second energy conversion member (10) comprises at least one shoe (10la), and in that the actuator (9) comprises a piston (913) movable in a cylinder (912) integrated into a caliper (91). 6. Dispositif de freinage suivant les revendications 4 et 5, caractérisé en ce que la collerette (80) s'étend radialement pour former deux bras (80a, 80b) disposés en V, et en ce que chaque bras présente une extrémité (801) conformée en glissière (802) pour recevoir à coulissement le patin (lova) et absorber l'effort de freinage s'exerçant sélectivement sur ce patin.6. Braking device according to claims 4 and 5, characterized in that the collar (80) extends radially to form two arms (80a, 80b) arranged in a V, and in that each arm has one end (801) shaped as a slide (802) for slidingly receiving the pad (lova) and absorbing the braking force exerted selectively on this pad. 7. Dispositif de freinage suivant la revendication 6, caractérisé en ce que l'extrémité (801) de l'un au moins des bras (80a, 80b) présente en outre des moyens (803) pour guider ledit étrier (91) suivant une direction parallèle au premier axe (X).7. Braking device according to claim 6, characterized in that the end (801) of at least one of the arms (80a, 80b) also has means (803) for guiding said caliper (91) according to a direction parallel to the first axis (X). 8. Dispositif de freinage suivant l'une quelconque des revendications 1 à 4, caractérisé en ce que l'actionneur (9) comprend un cylindre de roue (92). 8. Braking device according to any one of claims 1 to 4, characterized in that the actuator (9) comprises a wheel cylinder (92). 9. Dispositif de freinage suivant l'une quelconque des revendications 1 à 7, caractérisé en ce que le premier organe (3) de conversion d'énergie comprend un tambour (32), et en ce que le second organe (10) de conversion d'énergie comprend au moins un segment de frein (102a).9. Braking device according to any one of claims 1 to 7, characterized in that the first member (3) for energy conversion comprises a drum (32), and in that the second member (10) for conversion of energy comprises at least one brake segment (102a). 10. Dispositif de freinage suivant les revendications 4 et 9, caractérisé en ce que la collerette (80) s'étend radialement pour former un bossage (80c) offrant un appui au segment de frein (102a) pour pouvoir absorber l'effort de freinage s'exerçant sélectivement sur ce segment de frein. 10. Braking device according to claims 4 and 9, characterized in that the collar (80) extends radially to form a boss (80c) providing support for the brake segment (102a) in order to be able to absorb the braking force. exercising selectively on this brake segment.
FR9613301A 1996-10-31 1996-10-31 INTEGRATED BRAKING DEVICE WITH INCREASED RIGIDITY Expired - Fee Related FR2755195B1 (en)

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WO2000042332A1 (en) * 1999-01-13 2000-07-20 Delphi Technologies Inc Hub support
WO2001081152A1 (en) * 2000-04-21 2001-11-01 The Timken Company Wheel mounting with a bearing race embedded in a cast component
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EP1541376A1 (en) * 2003-12-12 2005-06-15 Société de Technologie Michelin Wheel of a commercial vehicle
FR2965786A1 (en) * 2010-10-07 2012-04-13 Rf2 Concept Device for adjusting inclination of rear axle of wheels of automotive competition vehicle, has spindle including end section fixed on longitudinal arm and another end section for receiving wheels carrying hub
DE102013220634A1 (en) * 2013-10-14 2015-04-30 Volkswagen Aktiengesellschaft brake carrier
EP3835081A1 (en) * 2019-12-10 2021-06-16 ZF CV Systems Europe BV Utility vehicle axle with a disc brake
US20210246954A1 (en) * 2019-05-28 2021-08-12 Michael Pagano Brake Mounting Bracket

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US6945370B1 (en) 1999-01-13 2005-09-20 Delphi Technologies, Inc. Hub support
WO2000042332A1 (en) * 1999-01-13 2000-07-20 Delphi Technologies Inc Hub support
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FR2816886A1 (en) * 2000-11-21 2002-05-24 Valmex Manufacturing method for stub axle with mounting plate comprises fitting two separately manufactured components, one comprising plate for mounting on support and other forming stub axle
WO2003080369A1 (en) 2002-03-27 2003-10-02 Valmex Spindle with plate, plate for same and production method thereof
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FR2965786A1 (en) * 2010-10-07 2012-04-13 Rf2 Concept Device for adjusting inclination of rear axle of wheels of automotive competition vehicle, has spindle including end section fixed on longitudinal arm and another end section for receiving wheels carrying hub
DE102013220634A1 (en) * 2013-10-14 2015-04-30 Volkswagen Aktiengesellschaft brake carrier
US20210246954A1 (en) * 2019-05-28 2021-08-12 Michael Pagano Brake Mounting Bracket
US11821477B2 (en) * 2019-05-28 2023-11-21 Michael Pagano Brake mounting bracket
EP3835081A1 (en) * 2019-12-10 2021-06-16 ZF CV Systems Europe BV Utility vehicle axle with a disc brake

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