JPS64830U

JPS64830U -

Info

Publication number: JPS64830U
Application number: JP9360887U
Authority: JP
Priority date: 1987-06-17
Filing date: 1987-06-17
Publication date: 1989-01-05

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例によるシリンダユ
ニツトを示す分解斜視図、第２図、第３図は同じ
くこの考案の回転シリンダと固定シリンダとの切
欠部が一致していないときのシリンダユニツトを
示す断面側面図、第４図はこの考案の回転シリン
ダと固定シリンダの切欠部が一致したときのシリ
ンダユニツトを示す断面側面図、第５図は従来の
シリンダユニツトを示す斜視図、第６図は従来の
回転ヘツド式磁気記録再生装置のテープ上に記録
される信号の記録パターン、第７図は従来の回転
ヘツド式磁気記録再生装置の構成の一例を示す斜
視図、第８図は従来装置のテープ中央部付近のテ
ープとヘツドとの接触状態を示す断面側面図、第
９図はテープ下端部近傍のテープとヘツドとの接
触状態を示す断面側面図である。図において、１は磁気ヘツド、１１は回転シリ
ンダ、１２はスカート部、１３はスカート切欠部
、１４は固定シリンダ、１５は切欠部、１６は吸
引手段を示す。なお、図中、同一符号は同一、又
は相当部分を示す。 Fig. 1 is an exploded perspective view showing a cylinder unit according to an embodiment of this invention, and Figs. 2 and 3 show a cylinder unit of this invention when the notches of the rotary cylinder and the fixed cylinder do not coincide. FIG. 4 is a cross-sectional side view showing the cylinder unit when the notches of the rotary cylinder and fixed cylinder of this invention coincide, FIG. 5 is a perspective view of the conventional cylinder unit, and FIG. Recording patterns of signals recorded on the tape of a conventional rotary head type magnetic recording/reproducing apparatus. FIG. 7 is a perspective view showing an example of the configuration of a conventional rotary head type magnetic recording/reproducing apparatus. FIG. FIG. 9 is a sectional side view showing the state of contact between the tape and the head near the center of the tape, and FIG. 9 is a sectional side view showing the state of contact between the tape and the head near the bottom end of the tape. In the figure, 1 is a magnetic head, 11 is a rotating cylinder, 12 is a skirt portion, 13 is a skirt notch, 14 is a fixed cylinder, 15 is a notch, and 16 is a suction means. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.

Claims

[Scope of utility model registration request]

A rotary head type magnetic recording and reproducing device that records and reproduces signals by spirally winding a tape-shaped recording medium around a cylinder equipped with a head, has a suction means, and has a skirt part at the bottom of the rotary cylinder and a part near the head mounting position. has a notch in the skirt portion of the
A cylinder unit characterized in that the fixed cylinder has a notch in at least one of the tape contacting surface near the position where the head enters the tape or near the position where the head leaves the tape.