DE177713C

DE177713C -

Info

Publication number: DE177713C
Application number: DENDAT177713D
Authority: DE

Description

KAISERLICHESIMPERIAL

PATENTAMTPATENT OFFICE

PATENTSCHRIFTPATENT LETTERING

-JVl 177713 -ι KLASSE 35«. GRUPPE -JVl 177713 -I CLASS 35 «. GROUP

Selbsttätig wirkende Bremseinrichtung· für Aufzüge.Automatic braking device · for elevators.

Patentiert im Deutschen Reiche vom 8. Januar 1905 ab.Patented in the German Empire on January 8, 1905.

Die Erfindung betrifft eine selbsttätige Reibungsbremse, die insbesondere bei Speiseaufzügen oder sonstigen Handaufzügen. Verwendung finden und die bei jeder Bewegungsrichtung des Aufzuges ein stoßloses Anhalten desselben ermöglichen soll. Die den Gegenstand der Erfindung bildende Reibungsbremse soll bei der bekannten Art von Bremsen Verwendung finden, bei welcher Lastrolle und angetriebener Teil durch beiderseitig angelenkte Glieder miteinander in Verbindung stehen und unter der Einwirkung der Last sich gegeneinander verdrehen, so daß sie gegen einen besonderen, zwischen ihnen angeordneten Bremsring gepreßt werden. Die Erfindung selbst besteht in der Anordnung des zwischen Lastrolle und angetriebenem Teil befindlichen Bremsringes in der Weise, daß er gegenüber den anderen Teilen der Reibungsbremse an der Drehung verhindert ist, sich dagegen in Richtung der Triebachse, geeignet geführt, verschieben kann. Diese Anordnung bietet den für Bremsvorrichtungen erheblichen Vorteil, daß die zu beiden Seiten dieses Bremsringes angepreßten Teile der Bremse den Bremsring stets in die Mittellage zwischen sich einstellen werden, so daß beide gegen den Bremsring zu pressenden Teile, da sie denselben Weg zurückzulegen haben, um in Eingriff zu kommen, dieses gleichzeitig bewirken werden. Die Abnutzung der Bremsteile wird daher eine vollkommen, gleichmäßige sein.The invention relates to an automatic friction brake, which is particularly used in dining elevators or other manual windings. Find use and that in every direction of movement of the elevator is intended to enable it to stop smoothly. The the subject The friction brake forming the invention is intended to be used in the known type of brakes find which load roller and driven part are hinged on both sides Members are connected to one another and, under the action of the load, are opposed to one another twist so that they are against a special one arranged between them Brake ring are pressed. The invention itself consists in the arrangement of the between Load roller and driven part located brake ring in such a way that it is opposite the other parts of the friction brake are prevented from rotating, however, in Direction of the drive axis, suitably guided, can move. This arrangement offers the considerable advantage for braking devices that on both sides of this brake ring pressed parts of the brake the brake ring always in the middle position between them be adjusted so that both parts to be pressed against the brake ring because they are the same Have to travel to get into engagement, effect this at the same time will. The wear of the brake parts will therefore be perfectly even.

In der Zeichnung stellt Fig. 1 die Ansicht einer Ausfülirungsform der Reibungsbremse von oben gesehen und Fig. 2 einen vertikalen Längsschnitt dar.In the drawing, Fig. 1 is a view of an embodiment of the friction brake seen from above and FIG. 2 shows a vertical longitudinal section.

Zwei Traversen 1 werden durch Verbindungsstangen,2, die mittels Feststellschraube 3 befestigt sind, in einer bestimmten Entfernung voneinander gehalten, und in zentrischen Bohrungen 4 innerhalb der Traversen 1 ist die Welle 5 gelagert. Auf dieser Welle 5 sitzt an geeigneter Stelle ein Haspelrad o. dgl. (in der Zeichnung nicht veranschaulicht).Two trusses 1 are connected by connecting rods, 2, which are fastened by means of locking screw 3, at a certain distance held from each other, and in central bores 4 within the trusses 1 is the Shaft 5 supported. A reel wheel or the like sits at a suitable point on this shaft 5 (in the Drawing not illustrated).

Die Lastrolle 6, die zur Aufnahme des Lastseiles dient, sitzt derart, lose auf der Welle 5, daß eine seitliche Bewegung möglich ist. Begrenzt wird diese Bewegung auf der einen Seite durch einen Stellring 7 auf der Welle 5, welcher in bekannter Weise durch eine Feststellschraube 8 befestigt ist. An der dem Stellring abgewandten Seite besitzt die Rolle 6 einen ringförmigen Flansch 9, der mit einer gut bearbeiteten Reibungsfläche 10 versehen ist. Weiterhin ist die Rolle 6 an der Innenseite mit radial verlaufenden, schlitzförmigen Aussparungen 13 versehen.The load roller 6, which is used to receive the load rope, sits loosely on the Wave 5 that lateral movement is possible. This movement is limited to the one side by an adjusting ring 7 on the shaft 5, which in a known manner by a locking screw 8 is attached. On the side facing away from the adjusting ring, the Roller 6 has an annular flange 9 that has a well-machined friction surface 10 is provided. Furthermore, the roller 6 is on the inside with radially extending, slot-shaped Recesses 13 provided.

Neben der Rolle 6 ist ein Reibungsring 14 dadurch gelagert, daß seitlich von ihm abstehende Arme 15 mit Augen 16 über die Verbindungsstangen: 2 geschoben sind, so daß der Reibungsring 14 keinerlei Drehbewegung, wohl aber eine Verschiebung in Richtung der Triebachse ausführen kann (vergl. Fig. 1). Die Abmessungen des Reibungsringes 14 sind derart gehalten, daß derselbe sich gegen die Reibungsfläche 10 der Rolle 6 anlegen kann.In addition to the roller 6, a friction ring 14 is mounted in that laterally protruding arms 15 with eyes 16 are pushed over the connecting rods: 2 , so that the friction ring 14 cannot perform any rotary movement, but can move in the direction of the drive axis (cf. Fig. 1). The dimensions of the friction ring 14 are kept in such a way that the same can lie against the friction surface 10 of the roller 6.

Lose auf der Welle 5 sitzt außerdem eine Bremsplatte oder Scheibe 17, welche gegen die andere Reibuiigsfläche des Reibungsringes 14 anliegen kann (vergl. Fig. 2). Die Bremsscheibe 17 besitzt durchgehende schlitzförmigeLoose on the shaft 5 also sits a brake plate or disk 17, which against the other friction surface of the friction ring 14 can be applied (see. Fig. 2). The brake disc 17 has continuous slot-shaped

Claims

Openings 18, which in their dimensions the slot-shaped recesses 13 of the roller 6 correspond. Through these openings 18 through the brake disc 17 and into the recesses 13 of the roller 6 the rib-shaped arms 19 protrude on the AVelle 5 with the aid of a locking screw 21 attached driver 20. The locking screw 21 presses against the Spring wedge 22 on the shaft 5.

The openings 18 and recesses 13 are slightly wider than the cross section of the Arms 19.. As a result, the arms 19 have BEZW in the openings. Cutouts certain play and the role 6 and the brake disc 17 can be independent of each other perform a rotary movement through a certain angle on the shaft 5.

Roller 6 and brake disk 17 are connected to one another by a number of links 23. In the selected embodiment two members 23 are thought to be arranged, which respectively at 24 on the roller 6. at the Brake disc 17 inserted over corresponding pins, that is, are articulated.

The described friction brake works as follows:

When the reel wheel is turned to set the elevator in motion, the Arms 19 of the driver 20 before they act on the load roller 6, the brake disc 17 until the connecting links 23 between the brake disc 17 and the roller 6 assume a parallel position to shaft 5.

With such a position of the connecting links 23, however, the roller 6 and the brake disc are 17 furthest apart so that none of the friction surfaces of the friction ring comes into contact with them.

But as soon as the reel wheel is released, the weight of the load causes a partial Rotation of the roller 6, which as a result of the play between the arms 19 of the driver 20 and the recesses respectively.

Openings of the roller and the brake disc in any direction without turning the Brake disc 17 is possible. As a result, the links 23 take one in with respect to the drive axis inclined position, whereby brake disc 17 and roller 6 each other to be approached. As a result of this approach, however, these two parts are against the friction surface of the friction ring 14 pressed, so cause the braking automatically.

Since the friction ring 14 is now rotating as a result of its storage on the connecting rods 2 is prevented, but can be moved axially so it will move the approaching parts 17 and 6 of the friction brake opposite immediately automatically adjust to the central position so that the brake disc. 17 and the roller 6 always come to rest at the same time, so come to the braking. As a result, the wear will be perfectly uniform and you may be taken into account in that the members 23 are designed to be adjustable in any arbitrary manner are.

Pate ν τ-A ν SPRu c η:

Automatic braking device for elevators, where load roller and driven Part connected to one another by links hinged on both sides stand and twist against each other under the action of the load, so that they are pressed against a special brake ring arranged between them, characterized in that the brake ring prevented from rotating, but is displaceable in the direction of the drive axis so that the coming into engagement with it Parts (load roller and driven part) its shift in the middle position affect them.

1 sheet of drawings.

Berlin, pressed in the ReichsdrückerÖ.