JPS5875353U

JPS5875353U - Accidental erasure prevention claw detection device

Info

Publication number: JPS5875353U
Application number: JP17046481U
Authority: JP
Inventors: 北村　信彦; 長富　弘充
Original assignee: 三菱電機株式会社
Priority date: 1981-11-13
Filing date: 1981-11-13
Publication date: 1983-05-21

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は、従来の誤消去防止爪検知装置を示す斜視図で
ある。第２ａ図ないし第２ｄ図は、第１図に示される装
置の動作を示す図である。第３図は、この考案の一実施
例を示す斜視図である。第４ａ図および第４ｂ図は、第
３図のロック機構部分の詳細を示す部分拡大図である。第５ａ図ないし第５Ｃ図は、第３図に示される装置の動
作を示す図である。図において、１はカセット、２は誤消去防止爪、３は爪
検知レバー、５，１１．１５は固定ピン、７はスイッチ
、９は薄板、１０はホルダロックレバ−１１３はカセッ
トホルダ、１４はロックビン、１６はストッパを示す。FIG. 1 is a perspective view showing a conventional erroneous erasure prevention nail detection device. 2a to 2d are diagrams illustrating the operation of the apparatus shown in FIG. 1. FIG. 3 is a perspective view showing an embodiment of this invention. 4a and 4b are partially enlarged views showing details of the locking mechanism portion of FIG. 3. FIG. 5a to 5c are diagrams illustrating the operation of the apparatus shown in FIG. 3. In the figure, 1 is a cassette, 2 is an accidental erasure prevention claw, 3 is a claw detection lever, 5, 11.15 is a fixing pin, 7 is a switch, 9 is a thin plate, 10 is a holder lock lever, 113 is a cassette holder, and 14 is a cassette holder. Lock bin, 16 indicates a stopper.

Claims

[Scope of utility model registration request]

(1) In a cassette tape recorder equipped with a cassette holder for storing a cassette tape, a device for detecting the presence or absence of an accidental erasure prevention claw provided on a cassette tape case, the device comprising: A holder locking mechanism for holding the holder, and a claw detection member for detecting the presence or absence of the accidental erasure prevention claw, the claw detection member interlocking with the holder locking mechanism,
When the holder lock mechanism holds the cassette holder at the cassette setting position, it is biased in a direction to press the accidental erasure prevention claw, and the holder block mechanism releases the cassette holder from the cassette setting position. The device is characterized in that the device is biased in a direction opposite to the direction in which the erroneous erasure prevention claw is pressed when the erroneous erasure prevention claw is pressed.

(2) The cassette holder includes a locking member on the lower side, and the claw detection member includes a protrusion that projects in a direction in which the cassette holder presses the accidental erasure prevention claw when the cassette holder is in the cassette setting position. The holder locking mechanism includes a holder lever having a hook portion that engages with the locking member, and the holder hanging lever has a hook portion that engages with the locking member in response to cassette setting of the cassette holder. a first position in which the cassette holder is held at the cassette setting position, and a second position in which the hook portion disengages from the locking member; In conjunction with exercise,
When the holder lock lever is in the first position, the protrusion is biased in a direction to press the accidental erasure prevention claw, and when the holder lock lever is in the second position, the protrusion is biased. Utility model registration claim No. 1, characterized in that the protruding portion is biased in a direction opposite to the direction in which the erroneous erasure prevention claw is pressed, so that the protruding portion does not come into contact with the cassette when the cassette holder is raised and lowered. ).

(3) The device according to claim (2), wherein the holder locking mechanism includes an elastic thin plate connecting the lock lever and the pawl detection member.

(4) The holder lock mechanism is configured to lock the lock lever.
The device according to claim (2) of the utility model registration, comprising a link mechanism for connecting the nail detection member and the nail detection member.

(5) The holder lock mechanism further includes a stopper that comes into contact with the locking member, and an elastic member that elastically biases the holder lock lever and the stopper, and the stopper has a first step and a second step. the first step is located above the second step, and the holder lever is in contact with the first step or the second step of the stopper. It further has an engaging convex part, and the convex part is
Utility model registration claim No. 2, wherein the holder lock lever is positioned in the first position or the second position by engaging the first step part or the second step part, respectively.
) to (4).