SU377913A1 - - Google Patents

Description

MAGNETIC DEVICE FOR TWO POSITIONAL

FIXING

Magnetic devices for two-position fixing are known, comprising a magnetic core, a rod with a bar of magnet material and a permanent magnet. In order to increase the reliability of the proposed device, the magnetic core has a C-shape, to the middle part of which a permanent magnet shorts out one of the poles. Odip from the cores of the magnetic circuit has a hole in which the core core enters. An anchor all the way to the displacement, eni is adjacent to the pole of a permanent magnet. FIG. 1 shows the described device with a permanent magnet —in the form of a longitudinally-magnetised rod, sheathed; its form and section along AA; in fig. 2 - the same, with an annular radially magnetized permanent magnet, open, its form; “And FIG. 3 is the same, with an annular permanent magnet magnetized along the axis, its general form. The device contains a permanent magnet 1, a magnetic core 2 and a bark 3 with a rod 4. A permanent magnet can be separated from the mattress duct 2 by insulating them with rings 5 and 6 of a nonmagnetic material or an insulating ring 7 and a magnetic core 8 made in the form of a ring . Anchor 3 is one of the poles of the device, and magnetic circuit 2 is its opposite pole. An anchor, adjoining one of the two 2-poles formed by the same magnetic core, closes the magnetic flux and is held by a certain magnetic force. The subject of the invention is a magnetic device for two-position fixing, which contains a magnetic core, a rod with a bark made of a magnetically soft material and a permanent magnet, characterized in that, in order to increase reliability in operation, the magnetic circuit is C-shaped, the middle part of which is 1 pole is attached to a permanent magnet, one of the stranded magnetic core has a hole in which the core flap is placed, with the measles on the entire path of movement adjacent to the pole of the permanent magnet.

Aa

1

254

3 7