| 摘要 |
<p>An indicator device for determining the distance between the surface of a workpiece and a tool, both being set up in a working machine. The device comprises a lower portion (2) with an underside (13) which is intended to be mounted on the surface of the workpiece, and an upper portion (1) with a topside (8) which is parallel to the underside (13) and is resilient in relation thereto against a spring force acting between said sides. The topside (8) is electrically insulated from the underside and is designed to make contact with the tool. Parts of an electrical circuit (16) are arranged between the topside and the underside and comprise inter alia a voltage source (4) and an indicator means (5), which are coupled so that the indicator means provides an indication when the topside (8) and the underside (13) are externally electrically connected.</p> |
