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Multifunctional press-button switch

A multi-functional, push-button technology, which is applied in the direction of electric switches, the arrangement of accessories on the dashboard, and the steering control installed on the car, etc., can solve the problems of complex assembly of multi-function push-button switches, etc.

Inactive Publication Date: 2004-05-12
TRW AUTOMOTIVE ELECTRONICS & COMPONENTS GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the assembly of this multifunctional push button switch is particularly complicated

Method used

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  • Multifunctional press-button switch
  • Multifunctional press-button switch
  • Multifunctional press-button switch

Examples

Experimental program
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Embodiment Construction

[0011] The cover of the multifunctional pushbutton switch indicated generally by reference numeral 10 in FIGS. 1 and 2 has a frame 12 made of relatively rigid plastic, from which window 14 is cut and a silicone film 16 stretched over the on the frame 12. The silicone film 16 forms a fully contacting operating surface on the outer surface of the cover. The windows 14 are separated from one another by a cross-shaped support structure 17 integrally formed with the plastic frame 12 . In addition, fastening domes 19 are formed onto the plastic frame 12 .

[0012] FIG. 3 shows a switch housing 20 on which the cover 10 is placed. A base plate 21 with a switching mat 22 on a printed circuit board 23 is inserted into the switch housing 20 . The switch pad 22 has a dome formed therein, with contact tabs 24, 26 as movable contacts actuated by actuating tappets 28, 30, respectively. Of all four actuating tappets of the multifunction pushbutton switch, only actuating tappets 28 and 30 ...

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PUM

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Abstract

A multifunctional pushbutton switch for a vehicle steering wheel has a plurality of pushbutton switching units that have pushbutton surfaces located close to each other in a shared a crating surface. The switch has a shared switch housing in which actuation tappets of the pushbutton switching units are movably guided, and a cap mounted over the actuation tappets and onto the switch housing. The cap is made by means of a two-component injection-molding technique and consists of a relatively rigid plastic frame with recessed windows each of a shape and size that corresponds to the circumference of one of the pushbutton surfaces and of a silicone membrane extending over the recessed windows.

Description

technical field [0001] The invention relates to a multifunctional push button switch, especially for a steering wheel of a vehicle, having several push button switch units, the push button switch surfaces of which are close to each other on a common operating surface, a common switch housing, the push button switch The unit's actuating tappets are configured such that they can move within the switch housing. Background technique [0002] In the case of multifunction pushbutton switches, which are used in particular in multifunction steering wheels of vehicles, the individual pushbutton switches are combined next to each other, each protruding from an opening in the hood. As a result they can be felt and manipulated by touching with hands without seeing. However, the assembly of this multifunctional push button switch is particularly complicated. Contents of the invention [0003] The invention provides a multifunctional push button switch which can be integrated visually...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R16/02B60K37/06B62D1/04H01H9/02H01H9/06H01H13/04H01H13/08H01H13/70H01H13/705H04H60/31
CPCH01H2223/003H01H2229/046H01H2217/018H01H13/705
Inventor 维尔弗里德·施默恩马库斯·阿尔特曼彼得·舒尔特
Owner TRW AUTOMOTIVE ELECTRONICS & COMPONENTS GMBH & CO KG