| 摘要 |
<p>A magnetic drive cradle includes a frame(1) with a supporting body. A cradle(3) is supported by said frame(1). Said cradle(3) is hinged with the front and rear parts of the frame by the pivots at its front and rear sides. A permanent magnet(5) is mounted on the top of the left and right sides of the cradle(3). An opposite permanent magnet(4) attracting each other the permanent magnet (5) mounted on the cradle(3) is mounted correspondingly on the left and right parts of the frame(1). An arc slide rail is arranged between said left and right frames. A demagnetizing block(6) is arranged on the arc slide rail frame. The demagnetizing block(6) is connected with an U-shaped driving wedge block(2) by a spring. Said U-shaped driving wedge block(2) moves on the arc slide rail by wheels(7) provided on its bottom to drive the demagnetizing block(6) to approach the magnet(5) on the cradle when the cradle(3) is in a non-balanced position, thus the attracting force of the opposite magnet(4) mounted on the left and right parts of the frame(1) is eliminated.</p> |
