| 摘要 |
<p>An extended contact strip comprises a deformable lateral portion 204 at a side of a bridge portion 102; an electrically conductive web or mesh 201 that is partially embedded in the bridge and a further conductor 104 which is positioned to contact the mesh when pressure is applied to the bridge. The deformable side part 204, the bridge 102 and the mesh 201 are formed in a single extrusion. The mesh can be braided, woven or knitted wires; flexible and formed as a tubular sleeve (fig 3). The bridge can be PVC, nitrol, nitrile, nitrite, silicone rubber or a combination thereof and selected to be flexible, translucent or transparent. The strip can comprise a pair of deformable portions; an extruded rigid mounting strip (fig 1, 103) into which the bridge and deformable portions locate; and an inner strip 101 having a further mesh contact 104 co-extruded together and glued to the side portions to form a cavity. Inner strip 101 can be translucent or transparent so that a light source such as a series of light emitting diodes can shine through the strip and the bridge. The side portion and the bridge can have a different Youngs modulus. Strips can be connected end to end and used for an alarm or a safety cut-out.</p> |
