DE174811C - - Google Patents

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Publication number
DE174811C
DE174811C DENDAT174811D DE174811DA DE174811C DE 174811 C DE174811 C DE 174811C DE NDAT174811 D DENDAT174811 D DE NDAT174811D DE 174811D A DE174811D A DE 174811DA DE 174811 C DE174811 C DE 174811C
Authority
DE
Germany
Prior art keywords
brake
lever
band
thumb
armed
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.)
Active
Application number
DENDAT174811D
Other languages
German (de)
Publication of DE174811C publication Critical patent/DE174811C/de
Active legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D49/00Brakes with a braking member co-operating with the periphery of a drum, wheel-rim, or the like
    • F16D49/08Brakes with a braking member co-operating with the periphery of a drum, wheel-rim, or the like shaped as an encircling band extending over approximately 360 degrees
    • F16D49/10Brakes with a braking member co-operating with the periphery of a drum, wheel-rim, or the like shaped as an encircling band extending over approximately 360 degrees mechanically actuated

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

Gegenstand . der Erfindung ist der ErsatzObject . the invention is the substitute

des Daumens D durch einen gewöhnlichen zwei- oder einarmigen Hebel, wodurch sich der Vorteil verminderter Herstellungskosten ergibt.of the thumb D by an ordinary two-armed or one-armed lever, which has the advantage of reduced manufacturing costs.

Der Daumen D (Fig. l) dreht sich um den Punkt b, der relativ zum Schuh S bei der Drehung des Daumens immer seine Lage beibehält. abc stellt daher einen zweiarmigen Hebel dar, kann daher auch als solcher, wie in Fig. 2 angegeben, ausgebildetThe thumb D (Fig. 1) rotates around point b, which always maintains its position relative to the shoe S when the thumb is rotated. abc therefore represents a two-armed lever and can therefore also be designed as such, as indicated in FIG. 2

• werden. Der Zapfen e in Fig. 2 entspricht dem Punkte b in Fig. 1.• will. The pin e in FIG. 2 corresponds to the point b in FIG. 1.

Es ist ferner nicht nötig, beide Bremsbandenden an einem Zapfen α oder d (Fig. 1 und 2) zu befestigen. Es genügt zum Anziehen des Bremsbandes, daß nur eines seiner Enden am Zapfen g des Hebels /? befestigt wird (Fig. 3) und das andere (für gewöhn-Hch das stärker gespannte) am Zapfen \ des Schuhes S (Fig. 3).It is also not necessary to attach both ends of the brake band to a pin α or d (Fig. 1 and 2). To tighten the brake band, it is sufficient that only one of its ends is attached to the pin g of the lever /? is attached (Fig. 3) and the other (for the usual, the more tensioned) on the pin \ of the shoe S (Fig. 3).

Die gleiche Ausführung zeigt Fig. 4, nur ist dortselbst das Ende des zweiarmigen Hebels h als Daumen ausgebildet.The same embodiment is shown in Fig. 4, only there the end of the two-armed lever h is designed as a thumb.

Durch Vertauschen des Drehpunktes ζ des Hebels h mit dem Befestigungspunkt des Bremsbandes g (Fig. 3) wird der zweiarmige Hebel g i k (Fig. 3) zum einarmigen Hebel m η ο (Fig. 5), wodurch die Drehrichtung für Bremsen und Lüften gegenüber den erstgenannten Ausführungen umgekehrt wird.By swapping the fulcrum ζ of the lever h with the fastening point of the brake band g (Fig. 3), the two-armed lever gik (Fig. 3) becomes the one-armed lever m η ο (Fig. 5), whereby the direction of rotation for braking and releasing compared to the the former is reversed.

Endlich kann man auch, wie in Fig. 6 angegeben, das zweite Bremsbandende am Hebel h so befestigen, daß die Spannung desselben das Moment der Handkraft beim Bremsen vermindert oder sogar auf Null reduziert, ganz wie bei einer gewöhnlichen Differentialbandbremse.Finally, as indicated in FIG. 6, the second end of the brake band can be fastened to the lever h in such a way that the tension of the latter reduces the torque of the manual force during braking or even reduces it to zero, just like with a conventional differential band brake.

Alle diese Ausführungen haben die Eigentümlichkeit, die Bremsdrucke in der Brems-Scheibe direkt zu vernichten, so daß die Achse der Bremsscheibe praktisch nur durch die abzubremsende Umfangskraft beansprucht wird.All of these designs have the peculiarity that the brake pressures in the brake disc to destroy directly, so that the axis of the brake disc is practically only stressed by the circumferential force to be braked will.

Claims (1)

Patent-An SPRU ch:Patent application: Bandbremse nach Patent 166988, dadurch gekennzeichnet, daß der zur Anspannung des Bremsbandes vorgesehene Daumen (DJ durch einen zwei- oder einarmigen Hebel ersetzt wird, wobei nur eines oder auch beide Bremsbandenden an diesem Hebel befestigt sein können.Band brake according to patent 166988, characterized in that the thumb (DJ) provided for tensioning the brake band is replaced by a two-armed or one-armed lever, whereby only one or both ends of the brake band can be attached to this lever. Hierzu 1 Blatt Zeichnungen.1 sheet of drawings.
DENDAT174811D Active DE174811C (en)

Publications (1)

Publication Number Publication Date
DE174811C true DE174811C (en)

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4677877A (en) * 1985-08-30 1987-07-07 Canadian Fram Limited Accessory drive with band brake

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4677877A (en) * 1985-08-30 1987-07-07 Canadian Fram Limited Accessory drive with band brake

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