JPH0185927U

JPH0185927U -

Info

Publication number: JPH0185927U
Application number: JP18042587U
Authority: JP
Priority date: 1987-11-26
Filing date: 1987-11-26
Publication date: 1989-06-07
Anticipated expiration: 2002-11-26
Also published as: JPH0626980Y2

Description

[Brief explanation of the drawing]

第１図乃至第５図は本考案誤消去防止機構の実
施の一例を示すものであり、第１図は要部の平面
図、第２図は要部の分解斜視図、第３図は第１図
の―線に沿う拡大断面図、第４図は誤消去防
止状態を第３図と同じ部位で切断して示す拡大断
面図、第５図はテープカセツトを示し、Ａは斜視
図、Ｂは拡大背面図、第６図は従来の誤消去防止
機構の一例を示す拡大断面図である。符号の説明、１……誤消去防止機構、２……誤
消去防止部材、５……当接部、７……可動側係合
部、９……検出部、１２……シヤーシ、１９……
固定側係合部、２０……録音モード形成部材、２
７……テープカセツト、３０……消去防止用爪片
。 Figures 1 to 5 show an example of the implementation of the accidental erasure prevention mechanism of the present invention. Figure 1 is a plan view of the main parts, Figure 2 is an exploded perspective view of the main parts, and Figure 3 is an exploded perspective view of the main parts. FIG. 4 is an enlarged sectional view taken along the line - in FIG. 1, FIG. 4 is an enlarged sectional view showing the accidental erasure prevention state cut at the same location as FIG. 3, FIG. 5 is a tape cassette, A is a perspective view, B 6 is an enlarged rear view, and FIG. 6 is an enlarged sectional view showing an example of a conventional erroneous erasure prevention mechanism. Explanation of symbols, 1... Erroneous erasure prevention mechanism, 2... Erroneous erasure prevention member, 5... Contact part, 7... Movable side engaging part, 9... Detection part, 12... Chassis, 19...
Fixed side engaging portion, 20... Recording mode forming member, 2
7... Tape cassette, 30... Erasing prevention claw piece.

Claims

[Claims for Utility Model Registration] A chassis made of synthetic resin, and a chassis made of synthetic resin that is slidably provided on the chassis so as to be able to move between a non-push-in position and a push-in position that forms a recording mode. a recording mode forming member; a recording permissible position comprising a detecting section and an abutting section; the abutting section allows the recording mode forming member to move to a pushed position when the detecting section detects an erasure prevention claw piece of the tape cassette; When the detecting section does not detect the erasure prevention claw of the tape cassette, the abutting section moves to the recording blocking position, which prevents the recording mode forming member from moving to the pushed position. A rotatable synthetic resin accidental erasure prevention member is provided, and a fixed side engagement part is formed on the chassis, and when the abutting part of the accidental erasure prevention member is in the recording blocking position, the A movable side engaging part is provided which faces the fixed side engaging part so as to be able to engage with each other and moves to a position where it does not face the fixed side engaging part as the abutting part moves to the recording permitting position. A mechanism to prevent accidental erasure.