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Control panel with resistive keys and prestressed sensors

  • US 9,111,669 B2
  • Filed: 08/02/2011
  • Issued: 08/18/2015
  • Est. Priority Date: 08/12/2010
  • Status: Active Grant
First Claim
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1. A control panel suitable for a motor vehicle, said control panel including a cover mounted on a support, wherein said control cover defines at least one zone for detection of a tactile pressure to form a control button, wherein a force sensor that includes a zone sensitive to pressure is arranged between the cover and the support, and behind the detection zone so as to detect the actuation of the control button to produce an electrical control signal when a user applies a determined tactile pressure force to the detection zone, the tactile pressure force being transmitted axially to the sensitive zone via a spacing plate made of elastically compressible material which is inserted between the sensor and the cover, wherein the inside surface of the cover includes a series of relief elements distributed over the inside surface of the cover opposite the sensitive zone to form a plurality of localised zones of increased pressure on the spacing plate, the localised zones of increased pressure being uniformly distributed so that the spacing plate applies a substantially even prestressing force over the sensitive zone.

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