JPH0486237U

JPH0486237U -

Info

Publication number: JPH0486237U
Application number: JP12750690U
Authority: JP
Priority date: 1990-11-28
Filing date: 1990-11-28
Publication date: 1992-07-27

Description

[Brief explanation of the drawing]

第１図及び第２図はこの考案に係るカセツトテ
ープ後退防止機構の実施例を示し、第１図は要部
の分解斜視図、第２図Ａ，Ｂ，Ｃ及びＤはカセツ
トテープが降下し記録再生位置に保持されるまで
のストツパ移動とリツド開放の作動状態を示す側
面図である。第３図及び第４図は従来例のカセツ
トテープ後退防止機構を示し、第３図は要部の分
解斜視図、第４図Ａ，Ｂ及びＣはカセツトテープ
が下降し記録再生位置に保持されるまでのカセツ
トテープとストツパとの関係及びリツド開放動作
の状態とを示す側面図。主な符号の説明、１……第１のレバー、１ａ…
…ストツパ、１ｂ……ガイド部、１ｃ……孔、１
ｄ……第１の被作動部、１ｅ……軸、２……第２
のレバー、２ａ……係合部、２ｂ……孔、２ｃ…
…第２の被作動部、２ｄ……係合部、２ｅ……軸
、２ｆ……孔、３……サイドシヤーシ、３ａ……
孔、３ｂ……レバーストツパ、３ｃ……孔、３ｄ
……レバーストツパ、３ｅ……バネ掛、３ｆ……
ガイド溝、４……バネ、５……カセツトホルダ、
５ａ……ボス、６……サイドシヤーシ、６ａ……
ガイド溝、７……カセツトテープ、７ａ……背面
、８……リツド、８ａ……下端部。 Figures 1 and 2 show an embodiment of the cassette tape retreat prevention mechanism according to this invention, with Figure 1 being an exploded perspective view of the main parts, and Figures A, B, C, and D showing the cassette tape falling back. FIG. 6 is a side view showing the operating state of the stopper movement and lid opening until the device is held at the recording/reproducing position. 3 and 4 show a conventional cassette tape back-up prevention mechanism, FIG. 3 is an exploded perspective view of the main parts, and FIGS. 4 A, B, and C show the cassette tape being lowered and held at the recording/playback position. FIG. 3 is a side view showing the relationship between the cassette tape and the stopper and the state of the lid opening operation until the lid is opened; Explanation of main symbols, 1...first lever, 1a...
...Stopper, 1b...Guide part, 1c...Hole, 1
d...first actuated part, 1e...shaft, 2...second
lever, 2a...engaging portion, 2b...hole, 2c...
...Second actuated part, 2d...Engaging part, 2e...Shaft, 2f...Hole, 3...Side chassis, 3a...
Hole, 3b... Lever stopper, 3c... Hole, 3d
...Lever stopper, 3e...Spring hook, 3f...
Guide groove, 4... spring, 5... cassette holder,
5a...Boss, 6...Side chassis, 6a...
Guide groove, 7...Cassette tape, 7a...Back surface, 8...Lid, 8a...Lower end portion.

Claims

[Scope of Claim for Utility Model Registration] 1. During recording and playback, a cassette tape with a rotary lid is attached to a cassette holder, and the cassette is moved along an inverted L-shaped guide groove provided on a side chassis using a horizontal and vertical drive device. Move the holder horizontally to a predetermined position, and open the lid using the fixed opener provided on the side chassis while lowering vertically from this predetermined position. When opening the lid, move the chassis so as to prevent the cassette tape from moving backwards. In a cassette tape recording/reproducing device with a bent stopper, a first lever is provided on the side chassis to be actuated by the cassette holder when the cassette holder is lowered, and the first lever is placed at an end different from the first actuated part to be actuated. A cassette tape retraction device characterized in that a stopper for regulating the retraction of the cassette tape is provided in the cassette tape holder, and when the cassette holder is lowered, the first lever is actuated so that the stopper comes to a position facing the back of the cassette tape. Prevention mechanism. 2. A second lever is provided on the side chassis and has a fulcrum on the opposite side of the vertical portion of the guide groove from the fulcrum of the first lever and is actuated by the cassette holder when the cassette holder is lowered. An engaging part is provided at an end different from the second actuated part to open the lid, and when the cassette holder is lowered, the second lever is actuated and the engaging part opens the lid. A cassette tape back-back prevention device according to claim 1.