JPH01170311U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図乃至第４図は本考案回転ヘツドドラムの
軸受構造の実施の一例を示すもので、第１図は回
転ヘツドドラムの中央縦断面図、第２図はドラム
部分の一部切欠分解斜視図、第３図は要部の縦断
面図、第４図は分解斜視図、第５図及び第６図は
従来の回転ヘツドドラムの軸受構造を示すもので
、第５図は一部切欠分解斜視図、第６図は中央縦
断面図、第７図及び第８図は従来の回転ヘツドド
ラムの軸受構造の問題点を説明するためのもので
、第７図はドラム周面にリードを形成する工程を
示す概略説明図、第８図はドラム周面の展開図で
ある。 符号の説明、１…回転ヘツドドラム、３…ドラ
ム、３ｃ…円筒部、５…中心軸、１２…軸受、１
３…スリーブ。 1 to 4 show an example of the bearing structure of the rotary head drum of the present invention, in which FIG. 1 is a central vertical sectional view of the rotary head drum, FIG. 2 is a partially cutaway exploded perspective view of the drum portion, and FIG. FIG. 3 is a vertical sectional view of the main parts, FIG. 4 is an exploded perspective view, FIGS. 5 and 6 show the bearing structure of a conventional rotating head drum, and FIG. 5 is a partially cutaway exploded perspective view. Fig. 6 is a central vertical sectional view, Figs. 7 and 8 are for explaining the problems of the bearing structure of a conventional rotary head drum, and Fig. 7 shows the process of forming leads on the circumferential surface of the drum. The schematic explanatory drawing, FIG. 8, is a developed view of the drum circumferential surface. Explanation of symbols, 1...Rotating head drum, 3...Drum, 3c...Cylindrical part, 5...Central shaft, 12...Bearing, 1
3...Sleeve.

Claims (1)

【実用新案登録請求の範囲】 中心軸と該中心軸に対して相対的に回転するド
ラムと中心軸を回転自在に支持する２つの軸受と
からなり、 ２つの軸受をスリーブに適宜離間して内嵌固着
し、 該スリーブを前記ドラムの中心部に形成した円
筒部に圧入固着した ことを特徴とする回転ヘツドドラムの軸受構造。[Claims for Utility Model Registration] Consisting of a central shaft, a drum that rotates relative to the central shaft, and two bearings that rotatably support the central shaft, the two bearings are installed in a sleeve at appropriate intervals. A bearing structure for a rotating head drum, characterized in that the sleeve is press-fitted and fixed into a cylindrical portion formed at the center of the drum.