DE204184C

DE204184C -

Info

Publication number: DE204184C
Application number: DENDAT204184D
Authority: DE

Description

■Pate nt-An Sprüche:■ Godfather sayings:

1. Sicherheitsvorrichtung an Handkurbeln, dadurch gekennzeichnet, daß der Handkurbelgriff (k) beim Loslassen sich an das Kurbel- oder Schwungrad ν kraftschlüssig anlegt, wobei durch eine an sich bekannte Mitnehmerkupplung (d, f, m) das Kurbel- oder Schwungrad (v) mit einer Bremsscheibe (m) gekuppelt wird, so daß das Getriebe oder die Maschine stillsteht, während das Lösen der Bremse (m, s, s¹) durch Aufklappen des Kurbelangriffes (k) in seine Gebrauchsstellung erfolgt.1. Safety device on hand cranks, characterized in that the crank handle (k) when released is applied to the crank or flywheel ν non-positively, with the crank or flywheel (v) by a known driver coupling (d, f, m) is coupled with a brake disc (m) so that the gearbox or the machine stands still, while the brake (m, s, s ¹ ) is released by opening the crank handle (k) into its position of use.

2. Ausführungsform der Sicherheitsvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Handgriff (k) drehbar auf einem in der Radebene angeordneten Bolzen (b) sitzt, welcher von einer Windungsfeder (c) umspannt wird und an seinem freien Ende den zum Entkuppeln,2. Embodiment of the safety device according to claim 1, characterized in that the handle (k) rotatably sits on a bolt (b) arranged in the wheel plane, which is spanned by a coil spring (c) and at its free end the uncoupling,

d. h. zum Lösen der Bremse (m, s, s¹) dienenden Daumen (d) trägt.ie to release the brake (m, s, s ¹ ) serving thumb (d) carries.

Hierzu 1 Blatt Zeichnungen.1 sheet of drawings.

Claims

IMPERIAL

PATENT OFFICE.

The invention consists in the fact that the hand crank, as soon as it is released, is non-positive is turned over, whereby at the same time by means of a known in its mode of action Driving clutch the machine is braked.

Fig. Ι of the drawing shows a crank or flywheel drive in a front view, Fig. 2 is a section along the line AB of

ίο Fig. i.

The crank handle k sits on the bolt b which is under the action of a coil spring c. At the free end of the bolt b , a thumb d is arranged which, in its highest position, lifts a bolt f that is slidably attached to the wheel hub and is under the action of a spring. A disk m is loosely rotatably arranged on the drive shaft, while the actual crank mechanism or flywheel ν sits firmly on the shaft. A clamp s is tensioned in a controllable manner around the disk m and ^{, with an extension s 1} , strikes a stop α provided on the fixed part of the machine when the machine is to be stopped.
The process is as follows:
During use, the crank handle k is held perpendicular to the crank mechanism or flywheel ν . As soon as the worker lets go of the handle, the coil spring c applies it to the crank or flywheel ν . As a result, the bolt b is rotated and the thumb d releases the previously held up driver pin /, which in turn is pressed by the compression spring e into a recess located in the disk m. After a connection between the crank drive or flywheel and the brake disk m has been brought about by the pin /, both parts are braked in that the clamp s with its shoulder s ¹ lies against the stop α. In order to be able to regulate the speed with which the braking takes place, the clamp s is adjustably attached in a known manner.