JPH0268596U

JPH0268596U -

Info

Publication number: JPH0268596U
Application number: JP14775388U
Authority: JP
Priority date: 1988-11-11
Filing date: 1988-11-11
Publication date: 1990-05-24

Description

[Brief explanation of drawings]

第１図は本考案第１実施例の断面図、第２図は
第２実施例の断面図である。１はポール、２は下部プレート、３はリング状
マグネツト、４は上部プレート、５はフレームで
ある。 FIG. 1 is a sectional view of the first embodiment of the present invention, and FIG. 2 is a sectional view of the second embodiment. 1 is a pole, 2 is a lower plate, 3 is a ring-shaped magnet, 4 is an upper plate, and 5 is a frame.

Claims

[Claims for Utility Model Registration] 1. A ring-shaped magnet 3 is placed on a lower plate 2 from which a pole 1 protrudes from the center, and a ring-shaped upper plate 4 is placed on the upper surface of the ring-shaped magnet 3. In the magnetic circuit in which a magnetic gap is formed between the pole 1 and the inner periphery of the upper plate 4, the ring-shaped magnet 3 is made of a plastic magnet, and the ring-shaped magnet 3 is made of a plastic magnet. A magnetic circuit for a speaker, characterized in that convex portions formed on the upper plate 4 are fitted and fixed to at least one concave portion. 2. A request for registration of a utility model characterized in that a protrusion formed on the upper surface of the lower plate 2 is fitted and fixed to one or more recesses formed on the lower surface of the ring-shaped magnet 3. range 1
Magnetic circuit for speakers as described in section. 3 The ring-shaped magnet 3 and the upper plate 4
The bottom of the frame 5 is held between the upper plate 4 and the upper plate 4, and the convex part formed on the upper plate 4 is passed through the hole made in the bottom of the frame 5, and is fitted into the concave part of the ring-shaped magnet 3. A magnetic circuit for a speaker according to claim 1, characterized in that the magnetic circuit is fixed.