Special receptacle or package – For holding a machine readable recording medium – For holding a tape cassette
Patent
1995-05-11
1999-01-19
Ackun, Jacob K.
Special receptacle or package
For holding a machine readable recording medium
For holding a tape cassette
206493, B65D 85672
Patent
active
058605231
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention relates to a tape cassette receiving housing (it is also called a tape cassette carrying housing) which is used for storing or carrying a large-sized heavy tape cassette such as a digital video tape cassette or a digital data tape cassette that is used in a broadcasting station, and in particular to one which can prevent as much as possible the received cassette from moving in an axial direction of a positioning shaft portion formed in the housing and a reel from rotating by an impact upon falling in such a case that the tape cassette receiving housing has been dropped by mistake.
BACKGROUND OF THE INVENTION
Tape cassettes for business use are enlarged in size for improving the picture quality and for extending the recording time. For example, a tape cassette for digital recording and playback may have external dimensions of a lateral width of 366 mm, a longitudinal width of 206 mm and a thickness of 33 mm. Its weight is also extremely heavy.
As a tape cassette receiving housing for receiving a tape cassette for business use as the above, one shown in FIG. 22 is known.
FIG. 22 is a perspective view of a conventional tape cassette receiving housing 101.
The tape cassette receiving housing 101 is equipped with a housing proper portion 102 for receiving a tape cassette such as a digital video tape cassette, a lid portion 103 for opening or closing an opening portion of the housing proper portion 102, and a pair of positioning shaft portions (engaging projection portions) 104, 105 formed on an upper surface of the housing proper portion 102.
The shaft portions 104, 105 are cylindrically formed so as to be smaller in diameter than reel driving holes 114, 115 of a supply reel 112 and a take-up reel 113 of the tape cassette 111. 116 . . . 116 are gear-like driving ribs constituting the reel driving holes 114, 115.
When the tape cassette 111 is inserted into the housing proper portion 102, as shown in FIG. 20, the shaft portions 104, 105 penetrate into the reel driving holes 114, 115 of the supply reel 112 and the take-up reel 113 of the tape cassette 111, 115 and limit the movement of the tape cassette 111, thereby protecting the tape cassette from the impact upon falling or the like.
Furthermore, FIG. 23 is a sectional view of a condition in which the tape cassette 111 is received in the tape cassette receiving housing 101. In FIG. 23, 117 is a magnetic tape, 118 and 119 are upper and lower flanges of the supply reel 112 and the take-up reel 113. 120 and 121 are upper and lower shells of the tape cassette 111. 122 is a reel holder attached to the upper shell 120. 123 is a reel spring. 124 is a reel plate.
FIG. 24 is a sectional view showing an interior of the tape cassette 111.
In FIG. 24, 125 is a leader tape, and an end portion of the leader tape 125 is clamped by a clamper 126 of the take-up reel side, between the clamper 126 and a clamper-attaching portion 128 formed on a shaft portion 127 of the take-up reel 113. 131 and 132 are first and second ratchet mechanisms placed on the outer sides of flanges of the supply reel 112 and the take-up reel 112.
The first ratchet mechanism 131 comprises a ratchet tooth 135 formed on an outer periphery of the flange of the supply reel 112 and a ratchet pawl 134 which is to be meshed with the ratchet tooth 133.
Furthermore, the second ratchet mechanism 132 comprises a ratchet tooth 135 formed on an outer periphery of the flange of the take-up reel 113 and a ratchet pawl 136 which is to be meshed with the ratchet tooth 135.
Furthermore, as shown in FIG. 22, when the lid is in a closed condition, the ratchet pawl 134 of the first ratchet mechanism 131 is engaged with the ratchet tooth 133 formed on the supply reel 112, thereby preventing the supply reel 112 from rotating in a tape delivery direction (a clockwise direction in FIG. 24).
On the other hand, the ratchet pawl 136 of the second ratchet mechanism 132 is engaged with the ratchet tooth 135 formed on the take-up reel 113, thereby preventing the take-up reel 113 from rota
REFERENCES:
patent: 3587841 (1971-06-01), Devejian
patent: 3917067 (1975-11-01), Brown et al.
patent: 3994551 (1976-11-01), Ackeret
patent: 3998324 (1976-12-01), Roccaforte
patent: 4593814 (1986-06-01), Hagiwara et al.
patent: 4614269 (1986-09-01), Dietze et al.
Fukuda Taizo
Hirano Takayasu
Koizumi Osamu
Konno Toshikazu
Nihei Seiji
Ackun Jacob K.
Kananen Ronald P.
Sony Corporation
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