JPH03110679U

JPH03110679U -

Info

Publication number: JPH03110679U
Application number: JP1934090U
Authority: JP
Priority date: 1990-02-27
Filing date: 1990-02-27
Publication date: 1991-11-13

Description

[Brief explanation of drawings]

第１図は本考案に係るリール部拡大断面図、第
２図は第１図の別実施例図、第３図は本考案に係
るガイドローラ部の拡大断面図、第４図は第３図
の別実施例図、第５図はコンパクトビデオテープ
カセツトの内部を示す図、第６図は従来の巻取り
側リール部の拡大断面図、第７図は従来のガイド
ローラ部の拡大断面図である。１……コンパクトビデオテープカセツト、２…
…ロアハーフ、３……供給側リール、４……アツ
パハーフ、１１……リールシヤフト、１１ａ……
先端部、１１ｂ……中間部、１１ｃ……基部、１
２……巻取り側リール、１２ａ……円筒孔、１４
……別のリールシヤフト、１４ａ……先端部、１
４ｂ……中間部、１４ｃ……基部、１５……別の
巻取り側リール、１５ａ……奥部、１５ｂ……中
間部、１５ｃ……入口部、１５ｄ……径違い孔、
２１……ガイドシヤフト、２１ａ……先端部、２
１ｂ……中間部、２１ｃ……基部、２２……ガイ
ドローラ、２４……別のガイドシヤフト、２４ａ
……先端部、２４ｂ……中間部、２４ｃ……基部
、２５……別のガイドローラ、２５ａ……一端、
２５ｂ……中間部、２５ｃ……他端、Ｔ……テー
プ。 Fig. 1 is an enlarged sectional view of the reel part according to the present invention, Fig. 2 is a diagram of another embodiment of Fig. 1, Fig. 3 is an enlarged sectional view of the guide roller part according to the invention, and Fig. 4 is Fig. 3. FIG. 5 is a diagram showing the inside of a compact videotape cassette, FIG. 6 is an enlarged sectional view of a conventional take-up reel section, and FIG. 7 is an enlarged sectional view of a conventional guide roller section. be. 1... Compact video tape cassette, 2...
...Lower half, 3... Supply side reel, 4... Atsupa half, 11... Reel shaft, 11a...
Tip part, 11b...middle part, 11c...base part, 1
2... Winding side reel, 12a... Cylindrical hole, 14
...Another reel shaft, 14a...Tip, 1
4b... middle part, 14c... base, 15... another winding side reel, 15a... deep part, 15b... middle part, 15c... inlet part, 15d... different diameter hole,
21...Guide shaft, 21a...Tip, 2
1b...middle part, 21c...base, 22...guide roller, 24...another guide shaft, 24a
... Tip part, 24b ... Middle part, 24c ... Base part, 25 ... Another guide roller, 25a ... One end,
25b... middle part, 25c... other end, T... tape.

Claims

[Scope of claim for utility model registration] (1) A supply reel and a take-up reel are arranged on the left and right between the upper half and the lower half, and the take-up reel is supported on a reel shaft that stands up on the lower half, In a compact tape cassette in which tape is stretched between a supply reel and a take-up reel via a guide roller, the compact tape cassette has a tip end and a base end inserted into a cylindrical hole provided at the center of rotation of the take-up reel. A compact tape cassette characterized in that a reel shaft having a large diameter and a small diameter middle part is fitted so that only the tip and base of the reel shaft are in sliding contact with the cylindrical hole. (2) A supply reel and a take-up reel are arranged on the left and right between the Atsupah half and the lower half, and the take-up reel is supported by a reel shaft that stands up on the lower half. In the compact tape cassette, the compact tape cassette has a tape cassette of different diameters in which the inner part of the rotation center of the take-up reel has a small diameter and the middle part and the entrance part have a large diameter. A reel shaft having a small diameter at the tip and middle part and a large diameter at the base is fitted into the hole, and the tip of the reel shaft is connected to the small diameter deep part of the different diameter hole of the take-up reel, and A compact tape cassette characterized in that the base of the reel shaft comes into sliding contact with the large diameter inlet of the diameter-reduced hole of the take-up reel. (3) A supply reel and a take-up reel are arranged on the left and right between the Atsupah half and the lower half, and the take-up reel is supported by a reel shaft that stands up on the lower half. In a compact tape cassette in which the tape is passed through a guide roller, the guide shaft that is inserted through the guide roller has a large diameter at its tip and base, and a small diameter at the middle, and the tip of the guide shaft 1. A compact tape cassette characterized in that only a portion and a base portion are in sliding contact with a cylindrical guide roller. (4) A supply reel and a take-up reel are arranged on the left and right between the atsupah half and the lower half, and the take-up reel is supported by a reel shaft that stands up on the lower half, and the supply reel and take-up reel In a compact tape cassette in which the tape is passed through a guide roller, the guide shaft that passes through the guide roller has a small diameter at its tip and middle part and a large diameter at its base, while the guide shaft has one end and a large diameter at its base. A large diameter hole is drilled in the middle part and a small diameter hole is drilled in the other end, so that the tip of the guide shaft slides against the other end of the guide roller, and the base of the guide shaft slides against one end of the guide roller. Features a compact tape cassette.