JPH0431428U

JPH0431428U -

Info

Publication number: JPH0431428U
Application number: JP7056390U
Authority: JP
Priority date: 1990-07-02
Filing date: 1990-07-02
Publication date: 1992-03-13

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例のＶＴＲの要部を示
す斜視図、第２図は第１図の矢視方向から見た
拡大図、第３図は第１図の矢視方向から見た拡
大図、第４図は第１図例の動作の説明に供する平
面図、第５図は従来のテープカセツトの一例を示
す斜視図、第６図は第５図例の下ハーフの一部を
切り欠いて示す平面図、第７図は従来のテープカ
セツトの他の例の下ハーフを示す平面図である。１はテープカセツト、４は磁気テープ、４２は
キヤプスタン、１９は円筒壁、４４は発光素子、
４５，４７は夫々ライトガイド、４６はスタート
センサー、４８はエンドセンサー、４９，５０は
夫々受光部、５１，５２は夫々光伝送部、５３は
射出部である。 FIG. 1 is a perspective view showing the main parts of a VTR according to an embodiment of the present invention, FIG. 2 is an enlarged view seen from the direction of the arrow in FIG. 1, and FIG. 3 is a view seen from the direction of the arrow in FIG. FIG. 4 is a plan view for explaining the operation of the example in FIG. 1, FIG. 5 is a perspective view showing an example of a conventional tape cassette, and FIG. 6 is a part of the lower half of the example in FIG. FIG. 7 is a plan view showing the lower half of another example of the conventional tape cassette. 1 is a tape cassette, 4 is a magnetic tape, 42 is a capstan, 19 is a cylindrical wall, 44 is a light emitting element,
45 and 47 are light guides, 46 is a start sensor, 48 is an end sensor, 49 and 50 are light receiving sections, 51 and 52 are light transmission sections, and 53 is an emission section.

Claims

[Claims for Utility Model Registration] Any one tape cassette out of a plurality of types of tape cassettes, each of which is wound with a partially transparent tape, is loaded, and the above-mentioned tape of the loaded tape cassette is a means for recording or reproducing the tape in the loaded tape cassette; a light emitting element for irradiating light onto the tape in the loaded tape cassette; and a plurality of types of tape cassettes. a plurality of light-receiving sections disposed near windows through which light from the light-emitting elements of the plurality of types of tape cassettes is emitted when the plurality of types of tape cassettes are respectively loaded into the tape transport means; a light guide having a plurality of light transmission parts that guide light to a common emission part; and a light receiving element disposed near the emission part of the light guide, A video tape recorder characterized in that a light-transmitting portion of the tape is detected by a detection signal from the light receiving element.