| 摘要 |
When a winding-up device (2a) is displaced upwards, a spring mechanism (2) is wound up via a lever (18) and an intermediate member (19), and at the same time a first balancing lever (10) is pivoted about its pivoting axis (10a) by a return lever (12), with the result that a permanent measuring magnet (11) connected thereto pierces a supporting surface of the housing of the measuring device. A train (3) of wheels connected to the spring mechanism (2) is braked in the process by a brake pin (5) which is connected to the first balancing lever (10) and acts on a brake wheel (4). When the measuring device is placed with its support surface against the workpiece to be checked, the measuring magnet (11) is forced back together with the balancing lever (10) to be flush with the support surface, the brake pin (5) releasing the train (3) of wheels. The main shaft (7), which rotates clockwise in the process, loads a first spiral spring (9) which, given a satisfactory torque, lifts the first balancing lever (10) together with the measuring magnet (11) from the workpiece. The train (3) of wheels is stopped in the process by a brake spring (6). A pointer (22) indicates the thickness of the coating on a scale (23). The winding-up device (2a) facilitates a particularly simple and rapid winding up of the measuring device. <IMAGE>
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