| 摘要 |
PURPOSE:To make an electromagnetic brake and clutch in small size and simple construction by installing armatures for a clutch and a brake simultaneously in the output rotary member so as to make magnetic attraction or repulsion and arranging a magnetic resistant part which generates double flux containing the two armatures. CONSTITUTION:An output rotary member 3 is arranged in line with a ring-shaped field core 1 in front of it which works as a stationary member to house an electromagnetic coil 2, and an armature for braking 5 movable along a guide 4 is supported by said member 3. On the extension line from the axis of the core 1 with the rotary member 3 interposed, an input rotary member 8 is arranged, and an armature for clutch, 10, is mounted on a flange 8A of this member 8 through a spring 9 in such a way as rotatable as in a single solid piece. A concentrical ring-shaped magnetic resistant part 12 made of non-magnetic material is formed at the flange 3A of this rotary member 3 on its back face of the friction material 11 installed buried in the position right mating with the armature 10, and a long hole as another magnetic resistant part 13 is formed in a part betwen the pin 4 and a compression spring. |
