JPH0467488A - tape cassette - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a tape cassette for use in a rotating head type magnetic tape device.

2. Description of the Related Art A tape cassette used in a conventional rotary head type magnetic tape device has an opening into which a tape drawer member is inserted for drawing out the magnetic tape.
A tape cassette having a structure as shown in Japanese Patent No. 0693 was common.

The configuration will be explained below with reference to FIG.

As shown in the figure, a tape cassette 31 used in a magnetic tape device houses a supply reel 33 and a take-up reel 34 on which a magnetic tape 32 is wound. an opening 35 for inserting a magnetic tape pull-out member for pulling out and winding the magnetic tape 32 from the tape cassette 31 onto a drum (not shown) mounted with the magnetic tape 32;
It is stretched to form a Stretched magnetic tape 32
is covered with a front cover 36 and a rear cover 37, and is easily attached to the magnetic tape 32.
The front cover 36 cannot be touched when in use.
and the rear cover 37 rotates upward to expose the magnetic tape 32.
A magnetic tape is drawn out to a drum equipped with a rotating head by a tape drawing member.

Problems to be Solved by the Invention In such a conventional tape cassette 31, when the front cover 36 and the rear cover 37 are rotated fully open, both are positioned directly above the opening 35, resulting in a vertically double structure, and the rotating head In order to provide an upper clearance necessary for escape of the upper flange, etc. of the tape pull-out member for winding the magnetic tape 32 around the drum carrying the tape cassette 31, the space occupied outside the main body of the tape cassette 31 inevitably increases. was there.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a tape cassette that occupies a small space outside the cassette body even when the dust-proof lid is fully opened.

Means for Solving the Problems In order to achieve the above object, the present invention consists of an upper half and a lower half, houses a supply side reel and a take-up side reel on which magnetic tape is wound, and stores the magnetic tape in an opening. a cassette body stretched over the cassette body, the magnetic tape stretched over the opening in the cassette body, and a plane that covers the top and bottom surfaces of the opening and is parallel to the rotation plane of the supply side and take-up side reels. It consists of a pair of left and right lids that expose the magnetic tape when rotated.

Operation The present invention has the above-described structure, and by rotating the pair of left and right lids in a plane parallel to the rotating planes of the supply side and take-up reels, the magnetic tape is sealed when the lids are fully opened, and the magnetic tape is sealed even when the lids are fully opened. There is no change in thickness and width, and the space occupied outside the tape cassette body by rotation can be minimized.

Example Hereinafter, FIG. 1 shows a first embodiment of the present invention.

This will be explained with reference to FIGS. 2(a) and 2(b).

As shown in the figure, a supply reel 3 and a take-up reel 4 on which magnetic tape 2 is wound are housed in a tape cassette 1 consisting of an upper half 1a and a lower half 1b, and the magnetic tape 2 is formed on the tape cassette 1. The opening 11 is surrounded by fixed bosses lc and ld. The left and right pair of lids 5 and 6 are fixed posts lc formed on the tape cassette 1,
The magnetic tape 2 is stretched around the opening 11 with
It covers the opening 11 of the tape cassette 1 and is rotatably mounted on the tape cassette 1 in a plane parallel to the plane of rotation of the supply reel 3 and the take-up reel 4.

To explain the operation in the above-mentioned configuration, first, when loading the magnetic tape into the magnetic tape device, the pair of left and right lids 5 and 6 are fully rotated in a plane parallel to the plane of rotation of the supply reel 3 and the take-up reel 4. The magnetic tape 2 is exposed, a path is provided for pulling out the magnetic tape 2 from the tape cassette 1 to a drum (not shown) equipped with a rotary head, and the opening 11 of the tape cassette 1 is exposed on the path to draw out the magnetic tape 2 from the tape cassette 1. It is possible to insert a drawer member or the like (not shown).

If it is installed in the standard position of the magnetic tape device in this state,
The tape pull-out member inserted into the opening 11 of the tape cassette 1 moves to a position near the drum on which the rotating head is mounted, and the magnetic tape 2 is removed from the supply reel 3 or the take-up reel 4.
The tape can be drawn out and wound around a drum equipped with a rotating head, and recording or reproduction is possible by rotating the drum equipped with a rotating head, rotating the supply reel 3 and the take-up reel 4, and running the magnetic tape. Become.

Next, when ejecting the magnetic tape from the magnetic tape device, the magnetic tape 2 wound around the drum equipped with a rotary head is wound into the supply reel 3 or take-up reel 4 as the tape pull-out member moves, and the tape cassette 1 The tape pull-out member moves to the opening 11 of the tape cassette 1 to perform an ejection operation, and after the tape pull-out member of the magnetic tape device is pulled out of the opening 11 of the tape cassette 1, the pair of left and right lids 3 and 4 are moved to the supply side reel 3 and The take-up reel 4 is completely rotated and closed in a plane parallel to the rotating plane, and the magnetic tape 2 stretched across the opening 11 in the cassette body 1 is covered with the top and bottom surfaces of the opening 11. Opening 11 is sealed.

As described above, according to the tape cassette of the embodiment of the present invention,
A pair of left and right lids 3 and 4 that cover an opening 11 formed in the main body of the tape cassette 1 from both the top and the bottom are opened and closed by rotating the lids 3 and 4 on the tape cassette 1 in a plane parallel to the plane of rotation of the supply reel 3 and the take-up reel 4. By providing the tape cassette 1 in this way, there is no change in thickness and width when it is loaded into a magnetic tape device, and the space occupied outside the tape cassette 1 body by rotation can be reduced.

Effects of the Invention As is clear from the embodiments described above, according to the present invention, a pair of left and right lids attached to the tape cassette body so as to rotate in a plane parallel to the plane of rotation of the supply and take-up reels are used to store magnetic tape. By forming the tape cassette into a shape that covers the opening formed in the tape cassette body, it is possible to provide a tape cassette that is small and occupies a small space outside the tape cassette body.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a tape cassette according to an embodiment of the present invention, Fig. 2(a) is a plan view of the tape cassette of the embodiment when it is stored, and Fig. 2(b) is an opening movement of the tape cassette of the embodiment. FIG. 3(a) is a perspective view of a conventional tape cassette, and FIG. 3(b) is a side view of the conventional tape cassette. 1... Tape cassette, 2... Magnetic tape, 6...
·lid.

Claims (1)

[Claims] The cassette body consists of an upper half and a lower half, houses supply side and take-up side reels wound with magnetic tape, and has a cassette body in which the magnetic tape is stretched in an opening, and a cassette body in which the magnetic tape is stretched in the opening in the cassette body. a pair of left and right lids that cover the stretched magnetic tape and the top and bottom surfaces of the opening and expose the magnetic tape by rotating in a plane parallel to the rotation plane of the supply side and take-up side reels; More tape cassettes.