Control panel comprising resistive keys and spacers

摘要

Control panel including a cover mounted on a support that is provided with a tactile pressing detection zone in which a force sensor that includes a pressure-sensitive zone is arranged behind a detection zone between the cover and the support so as to produce an electrical control signal when a user applies a determined tactile pressing force to the detection zone. The tactile pressing force is transmitted axially (X1) towards the sensitive zone via a spacer made of elastically compressible material interposed between the sensor and the cover. The spacer includes at least one compressible portion that defines a transversal top surface that bears against the cover and a transversal bottom surface that bears against the sensitive zone of the sensor. The top surface has an area smaller than the area of the bottom surface.

主权项

1. A control panel comprising:
a support; a cover mounted on the support that defines at least one detection zone; a force sensor having a pressure-sensitive zone arranged behind the detection zone between the cover and the support so as to detect the actuation of a control button to produce an electrical control signal when a user applies a determined tactile pressing force to the detection zone, wherein the tactile pressing force is transmitted axially towards the sensitive zone via a spacer made of elastically compressible material interposed between the force sensor and the cover, wherein the spacer is axially compressed between the sensor and the cover in the absence of tactile pressing on the detection zone so that the sensor (18) is subject to a prestressing force at rest, wherein the spacer includes at least one compressible portion that defines a transversal top surface that bears against the cover and a transversal bottom surface that bears against the sensitive zone of the sensor, the top surface having an area smaller than the area of the bottom surface so as to minimize the reaction force applied by the spacer to the cover while ensuring even distribution of the prestressing force and of the tactile pressing force over the sensitive zone of the sensor.