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Telescopic spring unit having a locking device

A technology for locking devices and spring components, applied to springs, wing parts, vehicle components, etc., can solve problems such as difficult and expensive manufacturing, and difficulty in providing suitable brackets

Inactive Publication Date: 2005-10-19
VKR HLDG AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] It is therefore necessary to provide an additional spring and a bracket for this spring located on the periphery of the cylinder of the air spring, and it is difficult to provide a suitable bracket that will not move axially or circumferentially, so this assembly is in Relatively difficult and expensive to manufacture

Method used

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  • Telescopic spring unit having a locking device
  • Telescopic spring unit having a locking device
  • Telescopic spring unit having a locking device

Examples

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Embodiment Construction

[0021] figure 1 Shown in is a telescopic assembly 1 comprising an air spring 2 built into a cylinder 3 . The end of the piston rod 4 exiting the cylinder 3 is connected to a piston (not shown) in the cylinder 3, wherein compressed gas acts on the piston to push the piston rod away from the cylinder 3 to the full extension of the free end 5 of the piston rod 4. Cylindrical sleeve 11 is mounted coaxially around cylinder 3 as locking means 6 in the fully telescopic state of piston rod 4, while locking means 6 has an edge 7 remote from free end 5, which is in contact with the assembly 1 in the fully extended state, and the edge 7 can abut against the end of the cylinder 3. The locking means 6 also have force applying means 8 to push the edge 7 in a direction perpendicular to the axial direction of the assembly. The force applying means 8 comprises a plug 9 which is press-fitted into one end of a cylindrical sleeve 11 to obtain a secure connection and which in turn is pivotally c...

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PUM

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Abstract

A telescopic assembly (1) comprising a spring unit (2), preferably a gas spring, arranged in a cylinder (3), a piston rod (4) being connected at one end to said spring unit (2) and having a free end (5) projecting out of the cylinder (3) at one end thereof, and a locking device (6) having a first end connected to said free end (5) and a second end slidably riding on said cylinder (3), said locking device (6) having stop means positioned at least at or near its second end, said second end being positioned at or near said one end of the cylinder (3) in an extended position of the assembly (1) and force means (8) urging said stop means (7) against said one end of the cylinder (3), said force means (8) comprising a plug (9) pivotably connected to said free end (5) of the piston rod (4) and firmly connected to the locking device (6) and a resilient element (10) connected with the plug and acting on said piston rod (4).

Description

technical field [0001] The present invention relates to a telescoping assembly comprising a spring member, preferably an air spring assembled in a cylinder, a piston rod connected at one end to said spring member and having at one end a a free end protruding from the cylinder, and a locking device having a first end connected to said free end and a second end slidingly resting on said cylinder, said locking device having at least one Stop means at or near a second end thereof, said second end at or near one end of said cylinder in the extended position of the assembly, and force applying means urging said stop stopper, the stopper is against the above-mentioned one end of the cylinder. Background technique [0002] Air springs are widely used to exert force on objects, for example, to open hatches, doors or windows. When the hatch, door or window is fully open and the air spring is fully extended, it is required or necessary to use a locking device to prevent accidental cl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E05C17/30E05F1/10F16F9/02
CPCE05Y2201/478B60G2204/45B60G2204/4604B60G2206/92E05C17/30F16F9/0254E05F1/1091
Inventor 本特·科克·延森
Owner VKR HLDG AS