Carrying arrangement

Abstract

A carrying arrangement having a carrier arm adjustable in elevation is improved so that a load carried thereby can be easily exchanged. A gas-pressure spring (6) incorporates a latching device in such a manner that the gas-pressure spring self latches when a predetermined blocking position (P2) is reached and the self-latching device is disabled in response to an application of pressure to the carrier arm so as to move the carrier arm beyond the blocking position (P2).

Description

BRIEF DESCRIPTION OF THE DRAWINGS

The invention will now be described with reference to the drawings wherein:

FIG. 1 shows a carrying arrangement of an embodiment of the invention in longitudinal section with the carrier arm in the rest position;

FIG. 2 shows the carrying arrangement of FIG. 1 in the blocked position;

FIGS. 3 to 6 are schematics which show the operation of the latching device arranged within the gas-pressure spring.

Claims

1. A carrying arrangement for supporting a load, the carrying arrangement comprising: a first head piece for mounting said carrying arrangement at a predetermined location;a second head piece adapted to receive said load thereon;a carrier arm mounted between said first and second head pieces;said carrier arm including first and second legs interconnected via said first and second head pieces to define an articulated parallelogram to permit a pivot movement of said carrier arm in elevation along a pivot path between a rest position and an end position causing said second head piece to change in elevation relative to said first head piece;a gas-pressure spring for applying a counter force to said carrier arm in a direction toward said rest position;said gas-pressure spring including a latching device for self-latching said gas-pressure spring when said carrier arm reaches a predetermined blocking position (P2) along said path; and,said gas-pressure spring further including means for disabling said self-latching device and releasing said gas-pressure spring in response to a force applied to said carrier arm so as to move said carrier arm beyond said blocking position (P2).

2. The carrying arrangement of claim 1, wherein said gas-pressure spring has a pushed-in position; and, said blocking position (P2) corresponds to said pushed-in position.

3. The carrying arrangement of claim 1, wherein said gas-pressure spring is mounted between one of said head pieces and one of said legs.