DE661421C - Automatic brake for the runner of electric motors, especially for driving shutters or the like. - Google Patents

Automatic brake for the runner of electric motors, especially for driving shutters or the like.

Info

Publication number
DE661421C
DE661421C DEF77370D DEF0077370D DE661421C DE 661421 C DE661421 C DE 661421C DE F77370 D DEF77370 D DE F77370D DE F0077370 D DEF0077370 D DE F0077370D DE 661421 C DE661421 C DE 661421C
Authority
DE
Germany
Prior art keywords
brake
electric motors
runner
automatic brake
shutters
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
Application number
DEF77370D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FUETTERER FA A
Original Assignee
FUETTERER FA A
Publication date
Priority to DEF77370D priority Critical patent/DE661421C/en
Application granted granted Critical
Publication of DE661421C publication Critical patent/DE661421C/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/80—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling
    • E06B9/82—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Braking Arrangements (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Description

Selbsttätige Bremse für den Läufer vgn@.omotoren, insbesondere zum Antrieb von Rollaien ö. dgl. Die Erfindung betrifft eine selbsttätige Bremse für den Läufer von Elektromotoren, insbesondere zum Antrieb von Rolladen u. dgl.Automatic brake for the rotor vgn @ .omotoren, especially for Drive of Rollaien o. The like. The invention relates to an automatic brake for the runner of electric motors, especially for driving roller shutters and the like.

Der Zweck dieser Bremse ist, das Nachlaufen des Motors nach seinem Abschalten zu verhindern, weil dieses Nachlaufen beim Antrieb von Rolladen, Aufzügen o. dgl. zu Störungen des Betriebes führen würde.The purpose of this brake is to keep the engine running after its To prevent switching off, because this after-running when driving shutters, elevators or the like would lead to operational disruptions.

Es ist zwar bereits bekannt, für ähnliche Zwecke Bremsen zu verwenden, die beim Abschalten des Motors selbsttätig in Wirkung treten, wie @es auch nicht mehr neu ist, die Bremse durch eine Schrägfläche an der Antriebswelle zu lösen.Although it is already known to use brakes for similar purposes, which come into effect automatically when the engine is switched off, as @es do not What is more new is to release the brake by means of an inclined surface on the drive shaft.

Demgegenüber besteht die Erfindung darin, daß die auf einem freien Wellenende sitzende Bremse durch auf schrägen oder gekrümmten ringförmigen Flächen gleitende, mit der unter Federwirkung stehenden Bremsscheible verbundene Rollen geöffnet und durch mittels Fliehkörper bewegte Hebel in geöffnetem Zustand gehalten wird: Da die Bremse auf einem freien Wellenende sitzt, würde sie sich nach dem Lüften beim Anläufen des Motors allmählich wieder schließen. Dies wird durch die Fliehkörper verhindert, welche die Bremse so lange in geöffnetem Zustand halten, bis der Strom abgeschaltet ist.In contrast, the invention is that the on a free Brake seated on the shaft end due to inclined or curved annular surfaces sliding rollers connected to the brake disc, which is under the action of a spring opened and held in the open state by levers moved by means of centrifugal bodies is: Since the brake is on a free shaft end, it would be released after it was released gradually close again when the motor starts. This is done by the centrifugal body prevents that keep the brake in the open state until the current is switched off.

Die Erfindung ist auf der Zeichnung in einem Ausführungsbeispiel dargestellt, und zwar zeigen Abb. i einen Schnitt durch die geschlossene, Abb.2 durch die geöffnete Bremse.The invention is shown in the drawing in an exemplary embodiment, namely show Fig. i a section through the closed, Fig.2 through the open Brake.

Auf der Wellea sitzt der mit ringförmigen schrägen oder gekrümmten Flächen i versehene Körper c mit den Fliehkörpern e und den in Schlitzen sich bewegenden kleinen Hebeln d. In einer Ringnut der Bremsscheibe lt sind die Lüftrollen f untergebracht. Durch den Federring g wird die Bremsscheibe h gegen das Bremsgehäuse b gedrückt.The body c, provided with annular inclined or curved surfaces i, with the centrifugal bodies e and the small levers d moving in slots sits on the shaft a. The release rollers f are housed in an annular groove in the brake disc lt. The brake disk h is pressed against the brake housing b by the spring ring g.

Die Wirkungsweise ist folgende: Wird der Motor .eingeschaltet, so dreht sich der Körper c und schiebt dadurch die Rollen f auf den ringförmigen Flächen i gegen die Bremsscheibe, die hierdurch von :dem Bremsgehäüse b abgedrückt wird. Die Bremse ist nunmehr geöffnet. Die Fliehkörper e streben nach außen und halben die kleinen Hebel d in der in Fig.2 dargestellten Lage, so daß die Bremsscheibe durch sie in geöffnetem Zustand ,gehalten wird.The mode of operation is as follows: If the motor is switched on, so the body c rotates and thereby pushes the rollers f on the annular surfaces i against the brake disc, which is thereby pressed off by the brake housing b. The brake is now open. The centrifugal bodies e strive outwards and halfway the small lever d in the position shown in Fig.2, so that the brake disc is held by it in the open state.

Wird der Motor ausgeschaltet, dann überwindet im gleichen Augenblick der auf die Bremsscheibe wirkende Federdruck die Kraft der Fliehkörper. Die Bremse schließt sich, und der Motor wird stillgesetzt, so daß jeder Nachlauf sicher verhindert ist. Die Bremsung erfolgt dabei nicht ruckartig, sondern weich, so dä.ß Lager und Wellen geschont werden.If the engine is switched off, then overcomes in the same instant the spring pressure acting on the brake disc is the force of the centrifugal bodies. The brake closes and the motor is stopped so that any overrun is reliably prevented is. The braking is not jerky, but soft, so that bearings and Waves are spared.

Claims (1)

haT13NTANSP1tUCJ1: Selbsttätige Bremse für den Läufer von Elektromotoren, insbesondere zum Antrieb von Rolladen o. dgl., dadurch gekennzeichnet, daß .die auf einem freien Wellenende sitzende Bremse durch auf schrägen oder gekrümmten ringförmigen Flächen (i) gleitende, mit der unter Federwirkung (g) stehenden Bremsscheibe (1z) verbundene Rollen (f) geöffnet und durch mittels Fliehkörper (e) bewegte Hebel im geöffneten Zustande gehalten wird.haT13NTANSP1tUCJ1: Automatic brake for the rotor of electric motors, in particular for driving roller shutters o. The like., characterized in that .die Brake seated on a free shaft end by means of angled or curved ring-shaped brake Surfaces (i) sliding, with the brake disc (1z) under spring action (g) connected rollers (f) opened and moved by levers in the centrifugal body (e) is kept open.
DEF77370D Automatic brake for the runner of electric motors, especially for driving shutters or the like. Expired DE661421C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEF77370D DE661421C (en) Automatic brake for the runner of electric motors, especially for driving shutters or the like.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF77370D DE661421C (en) Automatic brake for the runner of electric motors, especially for driving shutters or the like.

Publications (1)

Publication Number Publication Date
DE661421C true DE661421C (en) 1938-06-21

Family

ID=7112859

Family Applications (1)

Application Number Title Priority Date Filing Date
DEF77370D Expired DE661421C (en) Automatic brake for the runner of electric motors, especially for driving shutters or the like.

Country Status (1)

Country Link
DE (1) DE661421C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1101597B (en) * 1957-09-28 1961-03-09 Manning Maxwell & Moore Inc Dynamo-electric machine with centrifugal brake
DE9204156U1 (en) * 1992-03-27 1993-04-15 Aumüller Aumatic GmbH, 8900 Augsburg Actuator for skylights or similar
DE102005015172A1 (en) * 2005-04-02 2006-11-09 Gross, Beatrix, Dipl.-Ing. Brake unit for sun awning deployed from a spindle by an electric motor acts against a spring and brake lining

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1101597B (en) * 1957-09-28 1961-03-09 Manning Maxwell & Moore Inc Dynamo-electric machine with centrifugal brake
DE9204156U1 (en) * 1992-03-27 1993-04-15 Aumüller Aumatic GmbH, 8900 Augsburg Actuator for skylights or similar
DE102005015172A1 (en) * 2005-04-02 2006-11-09 Gross, Beatrix, Dipl.-Ing. Brake unit for sun awning deployed from a spindle by an electric motor acts against a spring and brake lining

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