SWITCH STRIP, SAFETY SENSOR STRIP AND PRODUCTION METHOD THEREOF, AND ALSO ANTI-TRAP PROTECTION

摘要

The invention relates to a switch strip (10) for an apparatus for detecting an obstruction (210) in the movement range (221) of a closure element (220), in particular of an automotive vehicle (200). The switch strip (10) comprises an inner electrode (20), an outer electrode (30) approximately concentrically surrounding the inner electrode (20) at a distance (D), and a space (40) filled with air, which is arranged between the outer electrode (30) and the inner electrode (20) and which is dielectric. Furthermore, the switch strip (10) comprises a spacer (50) which is deformable in a direction transverse to the longitudinal direction. The spacer (50) spaces and insulates the two electrodes (20, 30) from one another. The outer electrode (30) is deformable by a force (F) applied from the outside. The deformation of the outer electrode (30) is able to at least in portions bring the inner electrode (20) and the outer electrode (30) into contact with each other. Such a switch strip (10) is also referred to as a tactile switch strip (10).

主权项

1. A switch strip for an apparatus for detecting an obstruction in the movement range of a closure element, in particular of an automotive vehicle, wherein the switch strip extends in a longitudinal direction and has a capacitance, comprising:
an inner electrode, to which a first electric charge is applicable; an outer electrode, which is deformable by a force (F) applied from the outside, to which a second electric charge is applicable and which is formed to be approximately circular in a section extending transverse to the longitudinal direction and approximately concentrically surrounds the inner electrode at a distance (D); a space filled with air, which is arranged between the outer electrode and the inner electrode and which is dielectric; and at least one spacer, which has a curved configuration in cross-section, which has two curved side surfaces, which are curved in the same circumferential direction as the switch strip, and is deformable in a direction transverse to the longitudinal direction and which spaces and insulates the inner electrode from the outer electrode, wherein, when the outer electrode is deformed, the deformation is able to at least in portions bring the inner electrode and the outer electrode into contact with each other.