Winding – tensioning – or guiding – Unwinding and rewinding a machine convertible information... – Cartridge system
Patent
1996-03-13
1998-08-25
Darling, John P.
Winding, tensioning, or guiding
Unwinding and rewinding a machine convertible information...
Cartridge system
242342, 242345, 242347, 2423524, 29434, 29458, G11B 23087
Patent
active
057975566
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to a tape cartridge, such as a data cartridge which is widely used as an external memory medium of a computer, and a method for producing the same.
BACKGROUND OF TECHNOLOGY
As shown in FIG. 15, a data cartridge, namely a tape cartridge 101 functioning as an external memory medium of a computer, comprises a cartridge case 104 constituted by installing a cover 103 at an upper surface of a base plate 102, a magnetic tape runningly installed in the cartridge case 104 and a drive belt 106 for running the magnetic tape 105.
As shown in FIG. 16, the base plate 102 is formed by installing a hard protective coat layer 112 on upper, lower and side surfaces of an aluminum plate 111.
The hard protective coat layer 112 is formed by treating an alumite-treatment on the aluminum plate 111.
As shown in FIG. 15, the cover 103 is made of a transparent synthetic resin. Grooves 103c and 103d for opening right and left side peripheral portions 102a and 102b of the base plate 102 are formed at right and left side surfaces 103a and 103b of the cover 103 with a predetermined length directing from a front surface 103e to a rear surface 103f.
A head inserted hole 103g is formed at one side portion of the front surface 103e of the cover 103, and a cutout window 103h for opening a first belt roller functioning as a drive roller mentioned hereinafter is formed at a center portion thereof.
As shown in FIG. 17, an end side of the magnetic tape 105 is wound around a first tape reel 121 and the other end side thereof is wound around a second reel tape 122.
The magnetic tape 105 is hooked on first and second tape guides 123 and 124 so as to run into the head inserted hole 103g formed at the front surface of the cover 103.
The drive belt 106 is hooked on a first roller 125 as a drive roller which is disposed to a front end 102a side of the base plate 102 so as to be directed to the cutout window 103h formed at the center portion of the front surface 103e of the cover 103, and second and third belt roller 126 and 127 functioning as corner rollers which are disposed at both side portions of the rear end 102b of the base plate 102, so as to generally form a triangle shape as flatly viewed.
The drive belt 106 between the first belt roller 125 and the second belt roller 126 is pressfitted on an outer surface of the magnetic tape 105 wound around the first tape reel 121, and the drive belt 106 between the first belt roller 125 and the third belt roller 127 is pressfitted on an outer surface of the magnetic tape 105 wound around the second tape reel 122.
The conventional tape cartridge 101 constituted as mentioned above is used in a recording and reproducing apparatus upon installed therein.
As shown in FIG. 15, a recording and reproducing apparatus 201 includes cartridge-insert guiding portions 203 and 204 of a U-shaped groove at right and left side portions of a cartridge inserting port 202.
Inserting the conventional tape cartridge 101 to the recording and reproducing apparatus 201, the right and left side peripheral portions 102a and 102b of the base plate 102 of the tape cartridge 101 are engaged with the cartridge insert guiding portions 203 and 204 of the recording and reproducing apparatus 201, and the tape cartridge 101 is inserted to a predetermined position of the recording and reproducing apparatus 201 while being guided by the cartridge insert guiding portions 203 and 204.
Inserting the tape cartridge 101 to the predetermined position (a loading position) of the recording and reproducing apparatus 201, as shown in FIG. 18, the loading of the tape cartridge 101 is detected by a cartridge detecting sensor 211 installed in the recording and reproducing apparatus 201, and a magnetic head 212 of the recording and reproducing apparatus 201 is contacted with the magnetic tape 105 upon entering in the head inserted hole 103g of the tape cartridge 101. Also, a drive capstan roller 213 is contacted with the first belt roller 125 functioning as a drive roller of the tape cartridge 101.
By rotatin
REFERENCES:
patent: 4696087 (1987-09-01), Mizuta
patent: 4756490 (1988-07-01), Newell
patent: 5097374 (1992-03-01), Koizumi et al.
patent: 5330051 (1994-07-01), Dangler et al.
patent: 5522562 (1996-06-01), Stanley et al.
patent: 5588606 (1996-12-01), Kikuchi et al.
Darling John P.
Kananen Ronald P.
Sony Corporation
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