FR2499922A1 - Load regulated brake control valve - operates with single pivoted lever fitted with adjustable stop - Google Patents
Load regulated brake control valve - operates with single pivoted lever fitted with adjustable stop Download PDFInfo
- Publication number
- FR2499922A1 FR2499922A1 FR8103267A FR8103267A FR2499922A1 FR 2499922 A1 FR2499922 A1 FR 2499922A1 FR 8103267 A FR8103267 A FR 8103267A FR 8103267 A FR8103267 A FR 8103267A FR 2499922 A1 FR2499922 A1 FR 2499922A1
- Authority
- FR
- France
- Prior art keywords
- receptacle
- lever
- valve
- adjustment device
- vehicle
- 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
-
- 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
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/18—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to vehicle weight or load, e.g. load distribution
- B60T8/1837—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to vehicle weight or load, e.g. load distribution characterised by the load-detecting arrangements
- B60T8/185—Arrangements for detecting vehicle level
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Hydraulic Control Valves For Brake Systems (AREA)
Abstract
Description
L'invention concerne un dispositif de réglage de la pression de freinage d'un véhicule susceptible d'être utilisé par exemple lorsque le véhicule est soumis à de grandes variations de charges, ce qui rend nécessaire une variation de 1' effort de freinage entre les essieux avant et arrière. The invention relates to a device for adjusting the braking pressure of a vehicle capable of being used for example when the vehicle is subjected to large variations in load, which makes it necessary to vary the braking force between the front and rear axles.
On connaît un dispositif de-réglage de la pression de freinage d'un véhicule comportant une partie fixe solidaire du châssis et une partie mobile solidaire d'un essieu, ledit dispositif de réglage comprenant une valve correctrice de pression dont le boitier est monté sur une desdites parties du véhicule et un levier monté pivotant sur ladite partie et lié à l'autre partie du véhicule, ladite valve comportant un clapet commandant le passage du liquide de frein et un élément formant tige qui maintient normalement ledit clapet ouvert et qui sort du boi- tier pour venir en butée contre le siège d'un ressort de compression disposé dans un réceptacle lié audit levier. Discloses a device for adjusting the braking pressure of a vehicle comprising a fixed part secured to the chassis and a movable part secured to an axle, said adjustment device comprising a pressure correcting valve, the housing of which is mounted on a of said parts of the vehicle and a lever pivotally mounted on said part and linked to the other part of the vehicle, said valve comprising a valve controlling the passage of brake fluid and a rod element which normally keeps said valve open and which leaves the housing - Tier to come into abutment against the seat of a compression spring disposed in a receptacle linked to said lever.
La présente invention propose un perfectionnement constructif à ce type connu de dispositif de réglage, perfectionnement qui consiste en ce que le réceptacle du ressort est monté articulé sur le levier de façon telle que le ressort reste en permanence dans l'axe de l'élément formant tige. Ce dernier ne reçoit ainsi que des efforts dirigés selon son axe, ce qui améliore le fonctionnement de la valve. The present invention provides a constructive improvement to this known type of adjustment device, an improvement which consists in that the spring receptacle is mounted articulated on the lever so that the spring remains permanently in the axis of the forming element. rod. The latter thus receives only forces directed along its axis, which improves the operation of the valve.
D'autres caractéristiques et avantages de l'invention appa raîtront dans la description qui va suivre et se réfère aux dessins annexés en lesquels
- la figure 1 est une vue en coupe longitudinale d'une partie d'un dispositif de réglage selon un premier mode de réalisation de l'invention ;
- la figure 2 est une vue en coupe transversale de la partie du dispositif de réglage de la figure 1, suivant la ligne 2-2
- la figure 3 est une vue de la partie du dispositif de réglage de la figure 1, selon la flèche 3 de la figure 2
- la figure 4 est une vue en coupe longitudinale d'une partie d'un dispositif de réglage selon un deuxième mode de réalisation de l'invention
- la figure 5 est une vue en coupe transversale de la partie du dispositif de réglage de la figure 4, suivant la ligne 5-5 ; et
- la figure 6 est une vue de la partie du dispositif de réglage de la figure 4, selon la flèche 6 de la figure 5. Other characteristics and advantages of the invention will emerge in the description which follows and refers to the attached drawings in which
- Figure 1 is a longitudinal sectional view of part of an adjustment device according to a first embodiment of the invention;
- Figure 2 is a cross-sectional view of the part of the adjustment device of Figure 1, taken along line 2-2
- Figure 3 is a view of the part of the adjustment device of Figure 1, according to arrow 3 of Figure 2
- Figure 4 is a longitudinal sectional view of part of an adjustment device according to a second embodiment of the invention
- Figure 5 is a cross-sectional view of the part of the adjustment device of Figure 4, along line 5-5; and
FIG. 6 is a view of the part of the adjustment device in FIG. 4, according to arrow 6 in FIG. 5.
Le dispositif de réglage de la pression de freinage selon l'invention est prévu pour etre monté entre une partie fixe solidaire du châssis du véhicule et une partie mobile solidaire d'un essieu, lesquelles n'apparaissent pas sur les dessins. The braking pressure adjustment device according to the invention is designed to be mounted between a fixed part secured to the vehicle chassis and a movable part secured to an axle, which do not appear in the drawings.
En se référant en premier lieu au mode de réalisation représenté aux figures 1 à 3, le dispositif de réglage de la pression de freinage comprend une valve correctrice de pression 12 dont le boîtier 14 est monté sur une des parties du véhicule et un levier 16 monté sur un pivot 18 du boitier et lié, par un système de verrouillage introduit dans la lumière 20, à l'autre partie du véhicule. Referring firstly to the embodiment shown in Figures 1 to 3, the brake pressure adjusting device comprises a pressure correcting valve 12 whose housing 14 is mounted on one of the parts of the vehicle and a lever 16 mounted on a pivot 18 of the housing and linked, by a locking system introduced into the lumen 20, to the other part of the vehicle.
Le débattement du levier 16 par rapport au boîtier 14 autour du pivot 18 est limité par une tige filetée 22 dont une extrémité est vissée dans le boitier et qui traverse le levier 16 par une lumière 24. The movement of the lever 16 relative to the housing 14 around the pivot 18 is limited by a threaded rod 22, one end of which is screwed into the housing and which passes through the lever 16 through a slot 24.
A son extrémité libre, la tige 22 porte un écrou 26 de dimensions supérieures à celles de la lumière 24.At its free end, the rod 22 carries a nut 26 of dimensions greater than those of the lumen 24.
La valve 12 comporte un clapet (non représenté) commandant le passage du liquide de frein et une tige 28 prolongeant un piston plongeur monté coulissant dans le boitier 14 et qui maintient normalement le clapet ouvert. The valve 12 comprises a valve (not shown) controlling the passage of the brake fluid and a rod 28 extending a plunger slidingly mounted in the housing 14 and which normally keeps the valve open.
L'extrémité supérieure de l & tige 28 sort du boîtier î4 et s' engage de façon étanche dans un alésage axial borgne 30 d'une pièce 32 qui sert de siège à un ressort de compression 34 ; ainsi se trouve définie une chambre fermée 36 destinée à amortir les chocs. Une bague en matériau élastomère 38 encastrée dans une gorge annulaire du boîtier 114 face au siège de ressort 32 joue un rôle analogue. The upper end of the rod 28 comes out of the housing Î4 and engages in a sealed manner in a blind axial bore 30 of a part 32 which serves as a seat for a compression spring 34; thus is defined a closed chamber 36 intended to absorb shocks. A ring of elastomeric material 38 embedded in an annular groove of the housing 114 facing the spring seat 32 plays a similar role.
Le ressort 314 est disposé dans un réceptacle 40 formé d'une cloche 42 se prolongeant par deux pattes 44 portant chacune un pivot 46 (visible aux figures 2 et 3) d'axe parallèle à l'axe du pivot 18. The spring 314 is placed in a receptacle 40 formed by a bell 42 extending by two lugs 44 each carrying a pivot 46 (visible in FIGS. 2 and 3) with an axis parallel to the axis of the pivot 18.
Une lumière 48 est ménagée dans le levier 16 pour permettre le passage de la cloche.A light 48 is provided in the lever 16 to allow the passage of the bell.
Chaque pivot 46 est maintenu contre le chant d'une encoche 50 du levier 16 par le ressort 34. Each pivot 46 is held against the edge of a notch 50 of the lever 16 by the spring 34.
Les figures 4 à 6 des dessins annexes illustrent un second mode de réalisation du dispositif de réglage de la pression de freinage selon i'invention, les éléments analogues étant ici repérés par les mêmes références numériques précédées d'un 1. FIGS. 4 to 6 of the appended drawings illustrate a second embodiment of the device for adjusting the braking pressure according to the invention, the similar elements being here identified by the same reference numerals preceded by a 1.
Ce deuxième mode de réalisation se différencie essentiellement du premier en ce que le réceptacle 140 du ressort 134 est formulé d'une simple plaque 142 se prolongeant par deux pattes 144 portant chacune un pivot 146. Le mode de fonctionnement de ce dispositif est en tous points identique à celui décrit ci-dessus à propos du premier mode de réalisation. This second embodiment differs essentially from the first in that the receptacle 140 of the spring 134 is formulated with a simple plate 142 extending by two legs 144 each carrying a pivot 146. The mode of operation of this device is in all respects identical to that described above with respect to the first embodiment.
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8103267A FR2499922A1 (en) | 1981-02-19 | 1981-02-19 | Load regulated brake control valve - operates with single pivoted lever fitted with adjustable stop |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8103267A FR2499922A1 (en) | 1981-02-19 | 1981-02-19 | Load regulated brake control valve - operates with single pivoted lever fitted with adjustable stop |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2499922A1 true FR2499922A1 (en) | 1982-08-20 |
FR2499922B1 FR2499922B1 (en) | 1983-04-15 |
Family
ID=9255382
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8103267A Granted FR2499922A1 (en) | 1981-02-19 | 1981-02-19 | Load regulated brake control valve - operates with single pivoted lever fitted with adjustable stop |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2499922A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0335764A1 (en) * | 1988-03-30 | 1989-10-04 | BENDIX EUROPE Services Techniques S.A. | Load sensitive brake force corrector with vehicle height sensor |
-
1981
- 1981-02-19 FR FR8103267A patent/FR2499922A1/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0335764A1 (en) * | 1988-03-30 | 1989-10-04 | BENDIX EUROPE Services Techniques S.A. | Load sensitive brake force corrector with vehicle height sensor |
FR2629412A1 (en) * | 1988-03-30 | 1989-10-06 | Bendix France | BRAKE CORRECTOR ASSEMBLED TO THE LOAD OF A VEHICLE BASED ON THE PLATFORM OF THE SAME |
US4925251A (en) * | 1988-03-30 | 1990-05-15 | Bendix France | Brake corrector subject to the load of a vehicle as a function of the seating of the latter |
Also Published As
Publication number | Publication date |
---|---|
FR2499922B1 (en) | 1983-04-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |