JPS6367217U

JPS6367217U -

Info

Publication number: JPS6367217U
Application number: JP16266686U
Authority: JP
Priority date: 1986-10-22
Filing date: 1986-10-22
Publication date: 1988-05-06

Description

[Brief explanation of drawings]

第１Ａ図〜第３図は本考案の実施例を示すもの
であり、第１Ａ図は外側コアに対するコイルの装
着を示す分解斜視図、第１Ｂ図は内側コアとコイ
ルを示す斜視図、第２Ａ図はコイルが外側コアの
溝に嵌着されている部分のコア内周面切削前の状
態を示す拡大断面図、第２Ｂ図はコア内周面切削
後の状態を示す拡大断面図、第３図はロータリト
ランスが実装される回転ヘツド装置の半断面図、
第４図は従来のロータリトランスの分解斜視図、
第５図は従来の外側コアとコイルを示す分解斜視
図、第６図は他の従来例によるコイルを示す斜視
図である。１１……外側コア、１１ａ……内周面、１１ｂ
……溝、１２……弾性材料によるコイル、１２ａ
……コイルの内周部、１２ｂ……コイルの切削面
、Ａ……収縮しろ、１３……内側コア、１４……
コイル。 1A to 3 show an embodiment of the present invention, in which FIG. 1A is an exploded perspective view showing how the coil is attached to the outer core, FIG. 1B is a perspective view showing the inner core and the coil, and FIG. 2A is a perspective view showing the coil attached to the outer core. The figure is an enlarged cross-sectional view showing the state of the portion where the coil is fitted into the groove of the outer core before cutting the inner circumferential surface of the core, FIG. 2B is an enlarged cross-sectional view showing the state after cutting the inner circumferential surface of the core, and FIG. The figure is a half-sectional view of a rotating head device in which a rotary transformer is mounted.
Figure 4 is an exploded perspective view of a conventional rotary transformer.
FIG. 5 is an exploded perspective view showing a conventional outer core and a coil, and FIG. 6 is a perspective view showing another conventional coil. 11... Outer core, 11a... Inner peripheral surface, 11b
...Groove, 12...Coil made of elastic material, 12a
... Inner peripheral part of the coil, 12b ... Cutting surface of the coil, A ... Shrinkage, 13 ... Inner core, 14 ...
coil.

Claims

[Scope of utility model registration request]

In a rotary transformer comprising a cylindrical inner core having a coil wound around its outer circumferential surface, and an outer core facing the outer circumferential surface of the inner core via a gap and having a coil provided on its inner circumferential surface, the outer The coil provided on the inner circumferential surface of the core is made of an elastic material and is formed into a ring shape with a shrinkage margin in part, and this coil fits into the groove formed on the inner circumferential surface of the outer core. A rotary transformer that is mounted inside the transformer and is cut so that the inner peripheral part of the coil and the inner peripheral surface of the outer core are flush with each other.