| 摘要 |
A magnetic holding device to be mounted to a magnetizable surface. It includes a body and a magnet having a pair of poles. A first and a second pole piece are mounted to the body adjacent to the magnet, each forming a continuation of a respective one of the poles. Each pole piece is a plurality of elongated magnetizable members in side to side sliding relationship to one another. They project from the body, and their projection is adjustable and selectable by sliding them. Releasable compression means allows for their relative movement when released, and holds them in an adjusted position when set. As optional features, the pole pieces can be magnetized or not, such as by the use an electromagnet or rotatable magnet, and the compression means may be a cam. |
