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Control valve for pneumatic spring and vehicle seat with control valve

A technology of pneumatic springs and vehicle seats, which is applied to vehicle seats, vehicle parts, seat suspension devices, etc., and can solve the problems of the static height adjustment fineness of the height adjustment device and the response performance of sensitivity and speed are not optimal. , to achieve the effect of reducing tolerance, simple manufacturing and precise control

Active Publication Date: 2016-10-12
GEBR ISRINGHAUSEN GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in such valve arrangements, the responsiveness of the height adjustment device is not optimal with regard to the fineness and sensitivity and speed of the static height adjustment

Method used

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  • Control valve for pneumatic spring and vehicle seat with control valve
  • Control valve for pneumatic spring and vehicle seat with control valve
  • Control valve for pneumatic spring and vehicle seat with control valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] exist figure 1 A side view of part of the swing system of a vehicle seat showing a pneumatic spring. Furthermore, the theoretical design of such a pivoting system with a height adjustment device of a seat surface of a vehicle seat or a height adjustment device is known in principle. Therefore, only the components that are relevant to the design of the invention will be considered below.

[0027] figure 1 Two scissor link pairs arranged parallel to one another are shown with an inner scissor link 10 and an outer scissor link 11 . The two scissor links 10 , 11 are rotatably connected to each other via a shaft 17 . The scissor guide rod in its figure 1 On the right-hand ends shown in , there are respectively fixed bearings 12 , 13 , which are fixed in position on the upper frame (not shown) or the lower frame (likewise not shown). Horizontal displacement bearings 14 , 15 are formed at the respective left-hand ends of the scissor links 10 , 11 . It is possible to adju...

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PUM

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Abstract

The invention relates to a control valve (16) for a pneumatic spring, said control valve having: a housing (41); an exhaust channel with an exhaust valve for opening or closing the exhaust channel Rod (26), the exhaust plunger interacts with the first control mechanism (19); the inflation channel, which has an inflation plunger (27) for opening or closing the inflation passage, the inflation plunger cooperating with the second control mechanism (20); and an additional channel having an additional plunger (28) for opening or closing the additional passage, said additional plunger cooperating with the third control mechanism (21) , wherein a first air connection A is connected on the exhaust channel and a second air connection P is connected on the inflation channel together with the additional channel, wherein the first control mechanism (19) and the second control mechanism (20) are arranged relative to each other so that the first control mechanism and the second control mechanism cannot be simultaneously operated by the operating element (18), and wherein the second control mechanism (20) and the third control mechanism (21) are arranged relative to each other such that additional The channels are only able to open when the inflated channels are open. Furthermore, the invention relates to a vehicle seat with a mechanical pivot system and a pneumatic spring with such a control valve.

Description

technical field [0001] The invention relates to a control valve for a pneumatic spring and a vehicle seat with a mechanical pivot system and a pneumatic spring with a control valve. Background technique [0002] Vehicle seats are known in commercial vehicles which are equipped with a pivotable and height-adjustable scissor pivot system. This scissor swing system consists of at least one pneumatic spring and pair of scissor guide rods. The scissor links are pivotably arranged relative to one another by means of a common shear axis. The control unit is used for height adjustment and height adjustment of the scissor swing system. The control device includes a control valve for controlling the inflation and deflation process of the pneumatic spring. The control valve is operated by a follower pin which acts on a control rod arranged on the control valve. The height adjustment device has an integrated height adjustment device for maintaining the center position of the pivotin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60N2/50B60N2/52
CPCB60N2/501B60N2/502B60N2/505B60N2/508B60N2/525B60N2/0226B60N2/1665F16K17/363F16K31/602
Inventor 赖纳·利克尔
Owner GEBR ISRINGHAUSEN GMBH & CO KG