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Piston-cylinder unit

A technology of piston cylinder and equipment, applied in mechanical equipment, door/window fittings, shock absorbers, etc., can solve problems such as damage, personal injury, loose casing and pressure pipe, etc.

Active Publication Date: 2016-08-17
STABILUS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the relative rotation of the sleeve and the pressure tube can also lead to loosening of the sleeve and the pressure tube, whereby the cover can move due to its own weight in the closing direction and cause damage to objects just in the area of ​​the cover or even cause damage to objects in the area of ​​the cover. Injury to persons in the covered area

Method used

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Examples

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Embodiment Construction

[0025] The illustrated piston-cylinder arrangement is designed to lift, for opening, a tailgate of the vehicle, which is pivotable about a horizontal axis, from a largely downwardly directed closed position into an open position. The piston-cylinder arrangement has a pressure tube 1 of an air spring, at a first end (not shown) of which a piston rod is guided sealingly outward, which carries a first connecting piece at its free end. The first connection part can be a universal joint, which can be fastened to the trunk lid or the body of the vehicle.

[0026] The shown second end of the pressure tube 1 is closed and has an axially protruding threaded journal 2 . The threaded spindle 3 is screwed onto the threaded journal 2 with a threaded bore 4 formed coaxially at one end thereof.

[0027] A nut 9 , for example made of plastic, is screwed onto the threaded spindle 3 .

[0028] The end of the lead screw 3 opposite the threaded hole 4 is designed as a rivet pin 5, the stop wash...

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PUM

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Abstract

The invention relates to a piston-cylinder unit having a pressure pipe (1), in which an axially slidable piston is arranged, which piston is sealed at a first end of the pressure pipe (1) and is guided outwardly, which piston has a sleeve (7) at the second end of the pressure pipe (1) that is located opposite the first end of the pressure pipe (1), which sleeve (7) can be displaced telescopically to the pressure pipe (1) and encloses the pressure pipe (1) with part of the length of the sleeve (1), and the end of which sleeve (1) facing away from the pressure pipe (1) is closed and bears a connecting piece (8). Coaxially from the second end of the pressure pipe (1), a threaded part having an external thread and being rigidly connected to the pressure pipe (1) extends, in the outer thread of which threaded part an inner thread arranged on the inner wall of the sleeve (7) engages. In the cylindrical inner opening (10) of the sleeve (7) a non-detachable threaded nut (9) is inserted at axial spaces both to the end facing the pressure pipe (1) and to the end of the inner opening (10) of the sleeve facing the connecting piece (8). At the end of the threaded part facing away from the pressure pipe (1), the threaded part has a radial expansion, which in a position of the sleeve (7) that coaxially is the farthest away from the pressure pipe (1), is in abutment with the end face of the threaded nut (9) facing away from the pressure pipe (1).

Description

technical field [0001] The invention relates to a piston-cylinder arrangement with a pressure tube in which a piston is arranged axially displaceable, the piston leading outwards in a sealing manner at a first end of the pressure tube, the piston-cylinder arrangement having a pressure tube a sleeve at a second end opposite to the first end of the pressure tube, telescopically displaceable towards the pressure tube, which sleeve surrounds the pressure tube with a part of its length and is closed at its end facing away from the pressure tube, and A bushing carrying connection, wherein a threaded member fixedly connected to the pressure pipe is provided with an external thread extending coaxially from the second end of the pressure pipe, an internal thread arranged at the inner wall of the bushing engaging to its external thread middle. Background technique [0002] Such piston-cylinder arrangements are used, for example, to open lids, in particular the trunk lids of motor veh...

Claims

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Application Information

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IPC IPC(8): F15B15/14F15B15/28
CPCF15B15/14F15B15/2823E05F1/1091E05Y2800/372E05Y2900/546F16F9/0245E05Y2900/548
Inventor 乔舒亚·布雷利卡斯托·福尔曼阿诺德·席尔茨
Owner STABILUS
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