Manually operated dispensing device having a friction brake acting upon a thrust rod

Abstract

The manually operated dispensing device comprises a friction brake acting upon a thrust rod. The friction brake consists of a brake spring comprising a loop portion having a radius, and an attached clamping portion having two legs for receiving between them a web extending on the thrust rod in lengthwise direction and normally to the toothing plane of the thrust rod. One of the legs is straight-lined whereas the other leg is curved or angularly bent from the loop portion. In this way, the brake spring is asymmetric with respect to its longitudinal axis, and the straight-lines portion acts for lining up the toothing of the thrust rod to the toothing of a drive member. Such a friction brake which consists of a spring only, can be manufactured and mounted in a simple and low-cost manner and aligns nevertheless the thrust rod in an efficient way.

Dependencies are inferred from the claim text.