DE629575C - Vehicle brake for hydraulic and mechanical operation - Google Patents
Vehicle brake for hydraulic and mechanical operationInfo
- Publication number
- DE629575C DE629575C DEO21418D DEO0021418D DE629575C DE 629575 C DE629575 C DE 629575C DE O21418 D DEO21418 D DE O21418D DE O0021418 D DEO0021418 D DE O0021418D DE 629575 C DE629575 C DE 629575C
- Authority
- DE
- Germany
- Prior art keywords
- thumb
- hydraulic
- vehicle brake
- brake
- shaft
- 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.)
- Expired
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
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
- F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
- F16D65/22—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for pressing members apart, e.g. for drum brakes
-
- 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
- F16D2125/00—Components of actuators
- F16D2125/18—Mechanical mechanisms
- F16D2125/20—Mechanical mechanisms converting rotation to linear movement or vice versa
- F16D2125/22—Mechanical mechanisms converting rotation to linear movement or vice versa acting transversely to the axis of rotation
- F16D2125/28—Cams; Levers with cams
- F16D2125/30—Cams; Levers with cams acting on two or more cam followers, e.g. S-cams
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Description
Die Erfindung betrifft: die bekannten Kraftfahrzeugbremsen für hydraulische und mechanische Bedienung, bei denen ein Spreizdaumen in einem hydraulischen Bremszylinder ange-5 ordnet ist und auf die Bremskolbeii einwirkt. Die Erfindung will die Aufgabe lösen, die Nachstellung der Bremsen zu ermöglichen, ohne daß ein Abbau des ganzen Rades erforderlich ist. Bekanntlich nutzen die nach vorn gerichteten Bremsbacken sich schneller ab als die hinten liegenden, so daß nach einiger Zeit die Handbremse gegen Vorwärtsbewegung unwirksam wird. Diese ungleichmäßige Abnutzung der Bremsbacken läßt sich erfindungsgemäß dadurch ausgleichen, daß zwischen dem Spreizdaumen und den Kolben auswechselbare Druckbolzen eingesetzt sind und die Daumenwelle von der Außenseite des Rades herausziehbar ist, so daß die Druckbolzen leicht zugänglich werden. Der Bremszylinder ist zu diesem.Zweck mit einer entsprechend weiten Öffnung versehen, die durch einen Schraubstopfen verschließbar ist. Dieser Schraubstopfen kann gleichzeitig als Lager für das Ende der Daumenwelle ausgebildet sein.The invention relates to: the known motor vehicle brakes for hydraulic and mechanical operation, in which a spreading thumb is attached to a hydraulic brake cylinder is arranged and acts on the Bremskolbeii. The invention aims to solve the problem To enable readjustment of the brakes without having to dismantle the entire wheel is. It is well known that the forward-facing brake shoes wear out faster than the rear ones, so that after a while the handbrake against forward movement becomes ineffective. This uneven wear of the brake shoes can be according to the invention compensate by the fact that replaceable pressure bolts are used between the expanding thumb and the piston and the thumb shaft is retractable from the outside of the wheel so that the push pins be easily accessible. The brake cylinder is for this purpose with a corresponding wide opening provided, which can be closed by a screw plug. This Screw plug can also be designed as a bearing for the end of the thumb shaft be.
Auf der Zeichnung ist ein Ausführungsbeispiel der Bremse nach der Erfindung dargestellt, und zwar zeigtIn the drawing, an embodiment of the brake according to the invention is shown, namely shows
Fig. ι einen Längsschnitt durch den Bremszylinder, Fig. Ι a longitudinal section through the brake cylinder,
Fig. 2 einen Querschnitt nach Linie 11-11 in Fig. i.Fig. 2 is a cross-section along line 11-11 in Fig. I.
Der Bremszylinder 10 nimmt die Kolben 11
und 12 auf, die an den Verschlußkappen 14, 15 anliegen und durch Manschetten 39, 40 abgedichtet
sind. Die Kappen 14, 15 stehen durch geschlitzte Bolzen 16, 17 mit den
Bremsbacken 18, 19 in kraftschlüssiger Verbindung. Wird dem Druckraum 13 zwischen
den Kolben Drucköl zugeführt, so werden die Kolben auswärts gedrückt und die Bremsbacken
19 an die Bremstrommel angepreßt.
Zwischen den Kolben 11, 12 sitzt der Spreizdaumen 20, dessen Welle 20° in einem
Ansatz des Bremszylinders auf der Innenseite des Rades gelagert ist. Die Lagerbüchse 34
ist gegen den Druckraum 13 durch eine Gummimanschette 35 abgedichtet. Der Spreizdaumen
20 liegt bei loser Bremse an den Druckbolzen 21, 22 an, die in den Kolben 11,
12 mittels der Zapfen 23, 24 auswechselbar eingesetzt sind. Bei einer Drehung der Welle
20« werden daher die Kolben wieder auswärts gedrückt und die Bremsbacken 18, 19 wirksam.
The brake cylinder 10 receives the pistons 11 and 12, which bear against the closure caps 14, 15 and are sealed by collars 39, 40. The caps 14, 15 are in a non-positive connection with the brake shoes 18, 19 by means of slotted bolts 16, 17. If pressure oil is supplied to the pressure chamber 13 between the pistons, the pistons are pressed outwards and the brake shoes 19 are pressed against the brake drum.
Seated between the pistons 11, 12 is the spreading thumb 20, the shaft of which is mounted at 20 ° in a shoulder of the brake cylinder on the inside of the wheel. The bearing bush 34 is sealed off from the pressure chamber 13 by a rubber sleeve 35. When the brake is released, the spreading thumb 20 rests against the pressure bolts 21, 22, which are inserted exchangeably in the pistons 11, 12 by means of the pins 23, 24. When the shaft 20 ″ rotates, the pistons are therefore pushed outward again and the brake shoes 18, 19 become effective.
Der Druckraum 13 ist auf der Außenseite des Rades durch eine Öffnung zugänglich, die durch einen Schraubstopfen 33 abgeschlossen und so bemessen ist, daß die Welle 20° samt dem Spreizdaumen 20 herausgezogen werden kann, wenn der Schraubstopfen entfernt wird. Es ist daher ohne weiteres möglich, die Druckbolzen 21, 22 auszuwechseln.The pressure chamber 13 is accessible through an opening on the outside of the wheel, which is completed by a screw plug 33 and dimensioned so that the shaft 20 ° together with the expanding thumb 20 can be pulled out when the screw plug is removed will. It is therefore easily possible to replace the pressure bolts 21, 22.
Der Schraubstopfen 33 kann gleichzeitig als Lager für das Ende der Daumenwelle 20s ausgebildet sein (Fig. 2).The screw plug 33 can also be designed as a bearing for the end of the thumb shaft 20 s (FIG. 2).
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEO21418D DE629575C (en) | Vehicle brake for hydraulic and mechanical operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEO21418D DE629575C (en) | Vehicle brake for hydraulic and mechanical operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE629575C true DE629575C (en) | 1936-05-06 |
Family
ID=7355482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEO21418D Expired DE629575C (en) | Vehicle brake for hydraulic and mechanical operation |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE629575C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2664973A (en) * | 1950-09-14 | 1954-01-05 | Arthur R Colley | Safety brake system |
| DE3732303A1 (en) * | 1987-09-25 | 1989-04-13 | Teves Gmbh Alfred | Hydraulic brake-actuating system |
| DE102007006380A1 (en) * | 2007-02-08 | 2008-08-14 | Lucas Automotive Gmbh | Locking brake device for motor vehicle, has electromechanically operated supporting device, which is formed in locking brake position and has swiveling eccentric |
| DE102014214098B3 (en) * | 2014-07-21 | 2015-12-10 | Saf-Holland Gmbh | braking system |
-
0
- DE DEO21418D patent/DE629575C/en not_active Expired
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2664973A (en) * | 1950-09-14 | 1954-01-05 | Arthur R Colley | Safety brake system |
| DE3732303A1 (en) * | 1987-09-25 | 1989-04-13 | Teves Gmbh Alfred | Hydraulic brake-actuating system |
| DE102007006380A1 (en) * | 2007-02-08 | 2008-08-14 | Lucas Automotive Gmbh | Locking brake device for motor vehicle, has electromechanically operated supporting device, which is formed in locking brake position and has swiveling eccentric |
| DE102014214098B3 (en) * | 2014-07-21 | 2015-12-10 | Saf-Holland Gmbh | braking system |
| CN106536960A (en) * | 2014-07-21 | 2017-03-22 | 塞夫霍兰德有限公司 | Braking system |
| CN106536960B (en) * | 2014-07-21 | 2018-10-26 | 塞夫霍兰德有限公司 | Braking system |
| US10138967B2 (en) | 2014-07-21 | 2018-11-27 | Saf-Holland Gmbh | Braking system |
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