DE696198C - Braking device, especially for motor vehicles, with two centrally arranged brake drums - Google Patents
Braking device, especially for motor vehicles, with two centrally arranged brake drumsInfo
- Publication number
- DE696198C DE696198C DE1939H0159508 DEH0159508D DE696198C DE 696198 C DE696198 C DE 696198C DE 1939H0159508 DE1939H0159508 DE 1939H0159508 DE H0159508 D DEH0159508 D DE H0159508D DE 696198 C DE696198 C DE 696198C
- Authority
- DE
- Germany
- Prior art keywords
- brake
- jaws
- braking device
- drum
- motor vehicles
- 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
- F16D53/00—Brakes with braking members co-operating with both the periphery and the inner surface of a drum, wheel-rim, or the like
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Description
26 OCT. 194026 OCT. 1940
Die Erfindung betrifft *iine Bremsvorrichtung,, bei welcher mittig zu einer an sich bekannten Bremstrommel eine zweite Bremstrommel angeordnet ist. Erfindungsgemäß sind zwischen diesen beiden Trommeln zwei Backenpaare angeordnet, von denen das eine Backenpaar sich als Innenbackenbremse gegen die äußere Trommel legt und das andere Backenpaar gegen die innenliegende Bremstrommel wirkt, wobei die Wirkung dieses Backenpaares der einer Außenbackenbremse entspricht. Beide Backenpaare sind mit Len-'kerhebeln verbunden, welche an der Rückenplatte der Radbremsvorrichtung drehbar gelagert sind. Die Betätigung der Bremsvorrichtung erfolgt durch an sich bekannte Spreizvorrichtungen durch Druckmittel, auf mechanischem Wege oder über druckmittelbetätigte mechanische Spreizvorrichtungen.The invention relates to a braking device, which is centered on a known brake device Brake drum a second brake drum is arranged. According to the invention there are two between these two drums Pairs of jaws arranged, of which one pair of jaws is used as an inner jaw brake the outer drum and the other pair of jaws against the inner brake drum acts, whereby the effect of this pair of jaws corresponds to that of an outer jaw brake. Both pairs of jaws are with len-’lever levers connected, which are rotatably mounted on the back plate of the wheel brake device. The operation of the braking device takes place by spreading devices known per se by pressure medium, by mechanical means or via pressure medium-actuated mechanical spreaders.
Ein Ausführungsbeispiel ist in der Abbildung dargestellt. Die Radbremsvorrichtung besteht aus einer äußeren Bremstrommel 1 sowie einer inneren Trommel 2; gegen Trommel ι wirkt eine Innenbackenbremse, welche aus den Backen 3 und 4 gebildet wird. Beide Bremsbacken sind an Lenkerhebeln § angeordnet, welche um Lagerzapfen 6 des Bremsschildes 7 drehbar sind. Die Lagerhebel 5 sind nicht radial angeordnet, sondern zu den beiden Bremstrommeln geneigt. Die Backen werden durch einen Spreizknebel 8 betätigt.An exemplary embodiment is shown in the figure. The wheel brake device consists of an outer brake drum 1 and an inner drum 2; An inner jaw brake, which is formed from the jaws 3 and 4, acts against the drum. Both brake shoes are arranged on steering levers § , which are rotatable about bearing journals 6 of the brake shield 7. The bearing levers 5 are not arranged radially, but are inclined towards the two brake drums. The jaws are actuated by a spreading toggle 8.
An den freien Enden der Lenkerhebel S des Bremsbackens 3 .ist ein Bremsbacken 9 angeordnet, welcher gegen Bremstrommel 2 wirkt. Entsprechend ist an den Lenkerhebeln des Bremsbackens 4 ein Backen 10 angeordnet, welcher ebenfalls auf Bremstrommel 2 wirkt. Spreizknebel 8 betätigt beim Verdrehen den Backen 10. Zwischen Backen 9 und Backen 4 ist auf der der Spreizvorrichtung 8 abgewendeten Seite eine Zugfeder 11 angeordnet, welche als Rückzugfeder und Lösefeder dient.A brake shoe 9 is arranged at the free ends of the handlebar lever S of the brake shoe 3. which acts against brake drum 2. Accordingly, a shoe 10 is arranged on the handlebars of the brake shoe 4, which also acts on brake drum 2. Spreading toggle 8 actuates the when twisting Jaws 10. Between jaws 9 and jaws 4, the spreading device 8 is turned away Side arranged a tension spring 11, which serves as a return spring and release spring.
Die Wirkungsweise der Vorrichtung ist folgende: The device works as follows:
Bei Betätigen der Spreizvorrichtung 8 wird 4 zunächst Backen 3 an die Trommel 1 angelegt. Die tangentiale Verschiebung des Backens 3. wird durch die konzentrisch liegenden Lenker-When the spreading device 8 is actuated, 4 jaws 3 are first placed on the drum 1. The tangential displacement of the jaw 3. is caused by the concentric handlebars
hebel 5 in eine Radialbewegung umgewandelt, wodurch der Backen in seinem ganzen Umfang gleichmäßig gegen die Bremstrommel angepreßt wird. Die Bewegung des Backens 3 wird durch die Lenkhebel auf Backen 9 übertragen, welcher entsprechend gleichmäßig an die Innentrommel 2 angepreßt wird.lever 5 converted into a radial movement, making the jaw in its entire circumference is pressed evenly against the brake drum. The movement of the jaw 3 is transmitted through the steering lever to jaws 9, which is correspondingly evenly the inner drum 2 is pressed.
Dreht sich die Trommel 1 in Richtung des Pfeiles, welche Drehrichtung der Vorwärtsfahrt des Fahrzeuges entspricht, so entsteht durch die Lagerung des Backens 1 eine zusätzliche S ervowirkung, da die Trommel durch die Reibung den Backen 3 mitzunehnaen sucht. Diese Wirkung wird durch die Lenker heb el 5 ebenfalls auf den Backen^ übertragen. Da nun durch die Trommelbewegung der Trommel 2 in Richtung des Pfeiles Backen 9 ein der Servo wirkung entgegengesetztes Moment erhält, wird dadurch ein Blockieren auch des Backens 3 verhindert.If the drum 1 rotates in the direction of the Arrow, which direction of rotation corresponds to the forward travel of the vehicle, is created by the storage of the jaw 1 an additional saving effect, since the drum through the friction seeks to take along the jaws 3. This effect is leveraged by the handlebars 5 also transferred to the jaws ^. Since now by the drum movement of the drum 2 in the direction of the arrow jaws 9 a torque opposite to the servo effect is obtained, this also prevents the jaw 3 from blocking.
Der entsprechende Vorgang spielt sich zwischen den Backen 4 und ι ο ab, wobei im Ausführungsbeispiel der innere Backen 10 durch die Spreizvorrichtung betätigt wird, was jedoch auf den Bremsvorgang ohne wesentlichen Einfluß ist.The corresponding process takes place between the jaws 4 and ι ο, with im Embodiment of the inner jaw 10 is actuated by the spreading device, however, this has no significant influence on the braking process.
Beim Lösen der Spreizvorrichtung 8 werden durch die Lösefeder 11 der Backen 9 und der Backen 4 von ihren Bremstrommeln angezogen und durch die Lenkerhebel die Lösebewegung auf die entsprechenden anderen Backen 3 und 10 übertragen.When releasing the spreader 8, the release spring 11 of the jaws 9 and the Jaws 4 attracted by their brake drums and the release movement through the handlebars transferred to the corresponding other jaws 3 and 10.
Erfindungsgemäß kann die Bremsvorrichtung an Stelle eines Spreizknebels 8 durch Verdrehen 'eines oder mehrerer Lenkerhebel unmittelbar erfolgen.According to the invention, the braking device can instead of an expanding toggle 8 through Twisting 'one or more handlebars take place immediately.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1939H0159508 DE696198C (en) | 1939-05-07 | 1939-05-07 | Braking device, especially for motor vehicles, with two centrally arranged brake drums |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1939H0159508 DE696198C (en) | 1939-05-07 | 1939-05-07 | Braking device, especially for motor vehicles, with two centrally arranged brake drums |
Publications (1)
Publication Number | Publication Date |
---|---|
DE696198C true DE696198C (en) | 1940-09-14 |
Family
ID=7183037
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1939H0159508 Expired DE696198C (en) | 1939-05-07 | 1939-05-07 | Braking device, especially for motor vehicles, with two centrally arranged brake drums |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE696198C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1009943B (en) * | 1952-02-09 | 1957-06-06 | Bergische Achsen Kotz Soehne | Shoe brake for vehicles, especially for vehicles with two concentric brake drums |
DE1245767B (en) * | 1956-06-14 | 1967-07-27 | John Z De Lorean | Drum brakes for vehicles, in particular for motor vehicles |
-
1939
- 1939-05-07 DE DE1939H0159508 patent/DE696198C/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1009943B (en) * | 1952-02-09 | 1957-06-06 | Bergische Achsen Kotz Soehne | Shoe brake for vehicles, especially for vehicles with two concentric brake drums |
DE1245767B (en) * | 1956-06-14 | 1967-07-27 | John Z De Lorean | Drum brakes for vehicles, in particular for motor vehicles |
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