FR2500897A1 - Hydraulic brake operating cylinder - has screwed spindle with double-acting notched adjusting nut for taking up play - Google Patents
Hydraulic brake operating cylinder - has screwed spindle with double-acting notched adjusting nut for taking up play Download PDFInfo
- Publication number
- FR2500897A1 FR2500897A1 FR8104105A FR8104105A FR2500897A1 FR 2500897 A1 FR2500897 A1 FR 2500897A1 FR 8104105 A FR8104105 A FR 8104105A FR 8104105 A FR8104105 A FR 8104105A FR 2500897 A1 FR2500897 A1 FR 2500897A1
- Authority
- FR
- France
- Prior art keywords
- piston
- adjuster
- brake
- double
- acting
- 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
- F16D65/00—Parts or details
- F16D65/38—Slack adjusters
- F16D65/40—Slack adjusters mechanical
- F16D65/62—Slack adjusters mechanical self-acting in both directions for adjusting excessive and insufficient play
- F16D65/66—Slack adjusters mechanical self-acting in both directions for adjusting excessive and insufficient play with screw-thread and nut
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
- B61H15/00—Wear-compensating mechanisms, e.g. slack adjusters
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Braking Arrangements (AREA)
Abstract
Description
La présente invention a pour objet des perfectionnements apportés aux régleurs de freins. The present invention relates to improvements made to brake adjusters.
Dans la famille des régleurs de freins, on distingue les appareils à simple et à double action. In the family of brake adjusters, there are single and double action devices.
Les appareils à simple action réduisent automatiquement un jeu excessif dans une timonerie de frein. Single action devices automatically reduce excessive play in a brake linkage.
Ce trop grand jeu (j) peut survenir lors de l'usure des surfaces de freinage par exemple.This excessive play (j) can occur during wear of the braking surfaces for example.
Les appareils à double action, en plus du fonctionnement précédent, compensent automatiquement un jeu (j) trop faible en l'augmentant. Ce jeu trop faible peut survenir pour diverses raisons (remplacement de semelles de frein, affaissement de suspension etc...)
On connaît notamment un régleur de frein qui est à double ou à simple action suivant que l'on monte ou que l'on ne monte pas un ressort, une butée à billes et une coupelle, par rapport à la structure générale du régleur.Double action devices, in addition to the previous operation, automatically compensate for too little play (j) by increasing it. This too weak play can occur for various reasons (replacement of brake shoes, sagging of suspension etc ...)
We know in particular a brake adjuster which is double or single action depending on whether one is mounting or not mounting a spring, a ball bearing and a cup, relative to the general structure of the adjuster.
La présente invention vise une disposition permettant de rendre le régleur à simple action en position frein desserré tout en maintenant ses caractéristiques de fonctionnement de régleur de jeu à simple ou double action instantanée au serrage et au desserrage. The present invention relates to an arrangement making it possible to make the single-action adjuster in the released brake position while maintaining its operating characteristics of instantaneous single or double action slack adjuster when tightening and loosening.
De plus, elle permet de renforcer le verrouillage de l'appareil en position de frein desserré. In addition, it strengthens the locking of the device in the released brake position.
D'autres caractéristiques et avantages de la présente invention ressortiront de la description qui va suivre faite en regard du dessin annexé, sur lequel
- la figure 1 est une vue en élévation latérale et demi-coupe d'un régleur de frein équipé selon l'invention ;
- la figure 2 est une vue en coupe, à plus grande échelle, d'une partie de ce régleur.Other characteristics and advantages of the present invention will emerge from the description which follows, given with reference to the appended drawing, in which
- Figure 1 is a side elevational view and half section of a brake adjuster equipped according to the invention;
- Figure 2 is a sectional view, on a larger scale, of a part of this adjuster.
Dans la forme de réalisation représentée, le régleur de frein équipé selon l'invention comprend, à la manière connue, dans un corps de cylindre (1) un piston (2) avec ressort de rappel (3) entre le corps et le piston. Une tige de réglage (4) est prévue également dans le corps de cylindre avec une tubulure (5) vissée sur ladite tige. Un ressort (6) est placé entre le fond de la tubulure (5) et le piston (2). La tige de réglage (4) comprend un écrou (7) à deux accouplements coniques possibles (8-9) et (10-11) avec le piston (2). In the embodiment shown, the brake adjuster equipped according to the invention comprises, in the known manner, in a cylinder body (1) a piston (2) with return spring (3) between the body and the piston. An adjustment rod (4) is also provided in the cylinder body with a tube (5) screwed onto said rod. A spring (6) is placed between the bottom of the tubing (5) and the piston (2). The adjustment rod (4) comprises a nut (7) with two possible conical couplings (8-9) and (10-11) with the piston (2).
Bien entendu, le régleur de frein peut comprendre également la butée à billes (12) le ressort (13) et la coupelle (14) dont il a été question plus haut. Le ressort (13) est placé entre la butée à billes (12) et le piston (2) par l'intermédiaire de la coupelle (14). L'écrou (7) solidaire de la tige de réglage 4 est en appui sur la butée à billes (12). Of course, the brake adjuster can also include the ball stop (12) the spring (13) and the cup (14) which was discussed above. The spring (13) is placed between the ball bearing (12) and the piston (2) by means of the cup (14). The nut (7) integral with the adjustment rod 4 is supported on the ball stop (12).
Conformément à l'invention, la butée à billes (12) repose sur une cale (15) elle-même en appui sur le corps de cylindre (1). La cale est cylindrique et coiffe le prolongement (4A) de la tige 4. Un effort de compression appliqué entre la tubulure (5) vissée sur la tige (4) et le corps (1), n'agit pas sur l'accouplement conique cranté (8-9) qui reste en prise. La tige de réglage (4) est ainsi verrouillée en translation. Elle ne peut donc tourner et entrainer un raccourcissement de l'appareil. La réversibilité se trouve ainsi supprimée. According to the invention, the thrust ball bearing (12) rests on a shim (15) itself bearing on the cylinder body (1). The wedge is cylindrical and covers the extension (4A) of the rod 4. A compression force applied between the tubing (5) screwed on the rod (4) and the body (1), does not act on the conical coupling notched (8-9) which remains in engagement. The adjustment rod (4) is thus locked in translation. It cannot therefore rotate and cause the device to shorten. Reversibility is thus eliminated.
L'invention prévoit également un jeu B entre le piston (2) et le corps de cylindre (1) et ce jeu détermine le renforcement du verrouillage. En effet, le ressort de rappel (3) en appui dans le corps (1) presse le piston (2) contre l'écrou (7) par l'accouplement conique cranté (8-9). Cet effort est transmis au corps (1) par les pièces (12) et (15) comme décrit précédemment. L'effort du ressort de rappel (3) vient donc s'ajouter à celui du ressort (6) et éventuellement à celui du ressort (13) qui chargent l'accouplement conique cranté (8-9). The invention also provides a clearance B between the piston (2) and the cylinder body (1) and this clearance determines the reinforcement of the locking. Indeed, the return spring (3) resting in the body (1) presses the piston (2) against the nut (7) by the notched conical coupling (8-9). This force is transmitted to the body (1) by the parts (12) and (15) as described above. The force of the return spring (3) is therefore added to that of the spring (6) and possibly that of the spring (13) which load the notched conical coupling (8-9).
Au cours du serrage et du desserrage, la cale (15) s'escamote en translation dans le piston (2) en diminuant un jeu (C) existant entre une nervure annulaire 16 de la cale (15) et le piston (2) de façon à permettre l'accouplement conique cranté (10-11). On retrouve alors les caractéristiques de fonctionnement du régleur de jeu à double ou simple action instantanée selon que l'on monte ou que l'on ne monte pas le ressort (13), la butée à billes (12) et la coupelle (14). During tightening and loosening, the shim (15) retracts in translation in the piston (2) by reducing a clearance (C) existing between an annular rib 16 of the shim (15) and the piston (2) of so as to allow the notched conical coupling (10-11). We then find the operating characteristics of the double or single instantaneous action slack adjuster depending on whether the spring (13), the ball stop (12) and the cup (14) are mounted or not mounted. .
D'une façon générale, l'invention s'applique aux ensembles de freinage à régleurs de freins et trouve notamment application, mais non exclusivement, sur les engins de manoeuvre. In general, the invention applies to brake assemblies with brake adjusters and finds particular application, but not exclusively, on maneuvering machines.
I1 est bien entendu que la présente invention n'a été décrite et représentée qu'à titre d'exemple préférentiel et que l'on pourra apporter des équivalences dans ses éléments constitutifs sans, pour autant, sortir du cadre de l'invention. It is understood that the present invention has only been described and shown as a preferred example and that it is possible to provide equivalences in its constituent elements without, however, departing from the scope of the invention.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8104105A FR2500897A1 (en) | 1981-03-02 | 1981-03-02 | Hydraulic brake operating cylinder - has screwed spindle with double-acting notched adjusting nut for taking up play |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8104105A FR2500897A1 (en) | 1981-03-02 | 1981-03-02 | Hydraulic brake operating cylinder - has screwed spindle with double-acting notched adjusting nut for taking up play |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2500897A1 true FR2500897A1 (en) | 1982-09-03 |
FR2500897B1 FR2500897B1 (en) | 1983-04-29 |
Family
ID=9255764
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8104105A Granted FR2500897A1 (en) | 1981-03-02 | 1981-03-02 | Hydraulic brake operating cylinder - has screwed spindle with double-acting notched adjusting nut for taking up play |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2500897A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2565189A1 (en) * | 1984-05-29 | 1985-12-06 | Sab | Device for controlling hydraulic brakes |
EP0165641A1 (en) * | 1984-06-22 | 1985-12-27 | SAB NIFE AB (reg. no. 556010-0058) | A brake cylinder apparatus with a slack adjuster mechanism especially for railroad vehicles |
EP0217589A2 (en) * | 1985-09-16 | 1987-04-08 | General Signal Corporation | Rail car brake apparatus |
EP0250927A2 (en) * | 1986-06-27 | 1988-01-07 | Bergische Stahl-Industrie | Brake actuation unit with cylinder and rod adjusters |
EP0491449A2 (en) * | 1990-12-17 | 1992-06-24 | MANNESMANN Aktiengesellschaft | Automatical or manual brake shock slack adjusting device on brakes with brake rods, especially for brakes of railway vehicles |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0014417A1 (en) * | 1979-02-02 | 1980-08-20 | Knorr-Bremse Ag | Automatic adjuster for brake levers in vehicle brakes, especially railway brakes |
-
1981
- 1981-03-02 FR FR8104105A patent/FR2500897A1/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0014417A1 (en) * | 1979-02-02 | 1980-08-20 | Knorr-Bremse Ag | Automatic adjuster for brake levers in vehicle brakes, especially railway brakes |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2565189A1 (en) * | 1984-05-29 | 1985-12-06 | Sab | Device for controlling hydraulic brakes |
EP0165641A1 (en) * | 1984-06-22 | 1985-12-27 | SAB NIFE AB (reg. no. 556010-0058) | A brake cylinder apparatus with a slack adjuster mechanism especially for railroad vehicles |
FR2566494A1 (en) * | 1984-06-22 | 1985-12-27 | Sab | BRAKE CYLINDER APPARATUS AND GAME REGENER MECHANISM IN PARTICULAR FOR RAILWAY VEHICLES |
EP0217589A2 (en) * | 1985-09-16 | 1987-04-08 | General Signal Corporation | Rail car brake apparatus |
EP0217589A3 (en) * | 1985-09-16 | 1989-04-05 | General Signal Corporation | Rail car brake apparatus |
EP0250927A2 (en) * | 1986-06-27 | 1988-01-07 | Bergische Stahl-Industrie | Brake actuation unit with cylinder and rod adjusters |
EP0250927A3 (en) * | 1986-06-27 | 1989-08-30 | Bergische Stahl-Industrie | Brake actuation unit with cylinder and rod adjusters |
EP0491449A2 (en) * | 1990-12-17 | 1992-06-24 | MANNESMANN Aktiengesellschaft | Automatical or manual brake shock slack adjusting device on brakes with brake rods, especially for brakes of railway vehicles |
EP0491449A3 (en) * | 1990-12-17 | 1992-11-19 | Mannesmann Aktiengesellschaft | Automatical or manual brake shock slack adjusting device on brakes with brake rods, especially for brakes of railway vehicles |
Also Published As
Publication number | Publication date |
---|---|
FR2500897B1 (en) | 1983-04-29 |
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ST | Notification of lapse |