JPS61203484U - - Google Patents

Description

[Brief explanation of the drawing]

1 and 2 show an embodiment in which the present invention is applied to a tape cassette for a video tape recorder. FIG. 1 is a partially cutaway plan view of the tape cassette, and FIG. 2 is a main part. FIG.
3 to 5 show conventional examples of tape cassettes for video tape recorders, in which FIG. 3 is a partially cutaway plan view of the tape cassette, FIG. 4 is an exploded perspective view of the main parts, and FIG. FIG. 5 is a sectional view taken along the line VV in FIG. 3. In the symbols used in the drawings, 1...cassette housing, 5a, 5b...reel, 6...front opening, 10...front lid, 11a, 11b...rotation support plate, 12a, 12b...inside Support shaft, 13a, 13b
...Outer support shaft, 21a, 21b...Lock release pin, 22a, 22b...Reel lock lever, 3
6a... Spring locking pin, 37a, 37b... Torsion coil spring, 38a, 38b... One end of torsion coil spring, 39a, 39b... Other end of torsion coil spring, 40a, 40b... Torsion coil spring. This is the coil part.

Claims (1)

[Claims for Utility Model Registration] A front lid in which a pair of left and right rotation support plates are integrally provided, and a front lid that is provided horizontally and on the same axis on the inside and outside of the pair of left and right rotation support plates, respectively. a pair of left and right inner spindles and an outer spindle; a cassette casing to which the front cover is rotatably attached by the pair of left and right inner spindles and outer spindle; and a pair of left and right inner spindles; a pair of left and right spring locking pins provided vertically, each inserted into the pair of left and right inner support shafts by means of a coil portion, and having both ends connected to the cassette casing and the pair of left and right spring locking pins, respectively; A pair of locked left and right torsion coil springs, a pair of left and right lock release pins provided vertically and upwardly protruding from the pair of left and right outer support shafts, and a pair of left and right lock release pins disposed within the cassette housing. and a reel lock lever, which is provided in the cassette housing so that the front lid is biased to close by vertically rotating the pair of left and right spring locking pins by the pair of left and right torsion coil springs. The pair of left and right reels are closed by closing the front opening and rotating the pair of left and right lock release pins vertically when opening the front lid against the pair of left and right torsion coil springs. In a tape cassette configured to operate a lock lever to unlock a pair of left and right reels rotatably housed in the cassette housing, the inner side of one of the pair of left and right inner and outer support shafts. The direction of the spring locking pin provided on the support shaft is set in the same direction as the lock release pin provided on the other outer support shaft, the pair of left and right torsion coil springs are formed in the same shape, and the torsion of the pair of left and right One of the torsion coil springs is inserted into the one inner support shaft by means of a coil portion, one end of which is locked to the spring locking pin, and the other torsion coil spring is inserted into the other outer support shaft. 1. A tape cassette, characterized in that the tape cassette is inserted into a shaft through a coil portion and one end thereof is locked to the lock release pin.