Diaphragm pump for a seat adjusting device and seat adjusting device

An adjustment device and diaphragm pump technology, applied to vehicle seats, pumps with flexible working elements, pumps, etc., can solve the problems of increasing assembly time, increasing installation space and cost, and increasing assembly cost

Active Publication Date: 2011-09-21
L& P SWISS HLDG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, the available installation space in the seat is limited
In addition, integrating a greater number of actuators and the associated components required to couple the actuators to components that can be adjusted mechanically or pneumatically increases assembly time and therefore assembly costs
While pneumatic components, such as pressure relief valves, can increase the lifespan of adjustable supports and / or enhance the comfort provided by adjustable supports, such components can increase installation space and cost

Method used

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  • Diaphragm pump for a seat adjusting device and seat adjusting device
  • Diaphragm pump for a seat adjusting device and seat adjusting device
  • Diaphragm pump for a seat adjusting device and seat adjusting device

Examples

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Embodiment Construction

[0036] Exemplary embodiments of the present invention will be described with reference to the drawings. Although some embodiments will be described in the context of a specific field of application, for example in the context of automotive seating, the embodiments are not limited to this field of application. The features of various embodiments may be combined with each other unless specifically stated otherwise.

[0037] figure 1is a schematic illustration of a vehicle seat 1 with an adjustment device according to an embodiment utilizing a diaphragm pump with an integrated pressure relief valve. The adjustment device is illustrated as a four-way lumbar support device. The lumbar support device includes an inflatable fluid chamber configured as a first inflatable bladder 2 and a second inflatable bladder 3 . The first inflatable bag 2 and the second inflatable bag 3 are configured to change their outer dimensions when the air pressure in the respective bag is adjusted. A f...

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PUM

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Abstract

A diaphragm pump for a seat adjusting device comprises a diaphragm and a valve member which define a pump chamber therebetween. An inlet valve and an outlet valve are formed on the valve member. A pressure chamber is in fluid communication with the outlet valve and receives fluid discharged from the pump chamber via the outlet valve. One of the diaphragm and the valve member comprises a valve membrane of a pressure relief valve integrated in the pump. The valve membrane is integrally formed with the one of the diaphragm and the valve member. The valve membrane is moveable between a first configuration in which the valve membrane closes a pressure relief channel and a second configuration in which the valve membrane opens the pressure relief channel to allow fluid to be discharged from the pressure chamber.

Description

technical field [0001] The invention relates to a diaphragm pump for a seat adjusting device and a seat adjusting device. In particular the invention relates to a diaphragm pump operative to supply a fluid, in particular a gas, to an inflatable chamber of a seat adjustment device. Background technique [0002] For example, lumbar support or other adjustable support is often provided in seats to enhance comfort, for example, for the driver or passenger. A lumbar support arrangement is provided in the backrest so as to provide sufficient support in the lumbar or lordotic region of a person sitting on the seat by forming a suitable support surface. Some embodiments of seat adjusting devices utilize one or more inflatable fluid chambers. The fluid chamber may be configured as an inflatable cushion or bladder that changes its shape and / or size depending on the amount of fluid contained therein. Examples of such lumbar support devices are described eg in EP1072465A1 or DE100634...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B43/02B60N2/48B60N2/66B60N2/90
CPCF04B43/0054F04B43/028B60N2/66F04B45/045F04B43/0045F04B43/021B60N2/4415F04B45/043B60N2/665B60N2/914
Inventor 艾里希·多弗勒约翰纳斯·施瓦兹保罗·廷德尔霍里奥·布伦德
Owner L& P SWISS HLDG
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