Telescopic prop comprising a spindle, and driving said prop by means of a crown wheel comprising an integrated thrust bearing for supporting loads

Abstract

Disclosed is a vertical elongate prop for supporting a parked vehicle trailer (1), consisting of a top prop tube (21), an inner prop member (22) which can telescopically slide into the prop tube, and a threaded spindle (3) for moving the inner prop member (22) in relation to the prop tube (21). The threaded spindle (3) meshes with a threaded bearing (31) that is secured to the upper end of the inner prop member (22). The upper end of the threaded spindle (3) is connected to a crown wheel (32), the upward-facing surface of which is part of a thrust bearing (33) or is designed to accommodate a thrust bearing (33). The thrust bearing (33) is supported on the vehicle trailer (1), either directly or via a cover (23) that is connected to the prop tube (21).

Description

technical field [0001] The present invention relates to a vertically elongated frame for supporting a parked vehicle trailer, the vertically elongated frame consisting of: a top strut tube; an inner strut member telescopically slidable into the strut tube; and A threaded mandrel for moving the inner strut member relative to the strut tube, wherein the threaded mandrel engages a threaded bearing secured to the upper end of the inner strut member. Background technique [0002] When a vehicle trailer, such as a semi-trailer, is to be disconnected from its tow vehicle, vertical brackets mounted on the trailer extend down into the parking lot to keep the trailer in a horizontal position at all times. [0003] In the prior art, telescopic supports are mainly used, which are usually mounted in pairs in front of the frame of the semi-trailer. The telescoping stand almost always consists of a hollow strut tube, outside of which the lower section extends downwards for parking. Since...

AI Technical Summary

Problems solved by technology

[0007] The disadvantage is that shafts with smaller and larger bevel gears require a larger installation space on top of the threaded mandrel, which significantly increases the overall height of the bracket even when retracted

This leads to the disadvantage that within the strut tubes the highly dimensioned pressure plates must be aligned precisely in order to transmit the support forces

[0010] The disadvantage is that the trailer manufacturer has to produce the mounting plate and has to attach it to the frame of the vehicle trailer

The disadvantage is that at each pair of wheels only one pair of teeth meshes with each other

Both of these regulations increase the weight of the system

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