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EP0144802A1
Expired / Lapsed
EP
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Magnetic tape cassette
Assignee: Sony Corp
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Filing: 1984-11-09
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Granted: —
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Expires: 2004-11-09
Abstract
Abstract A magnetic tape cassette comprises a hollow casing (1) formed with an access opening therein, tape guide columns (7a, 7b), and a pair of reel hubs (4a, 4b) rotatably mounted within the casing (1) in spaced-apart relation to each other for supporting a magnetic tape (6) wound thereon and defining a tape run adjacent to the opening. A lid (8) is mounted pivotally on the casing (1) between a closed position wherein it covers the opening, thereby affording protection to the tape (6), and an open position wherein it uncovers the opening, thereby exposing the tape (6) for cooperation with recording-reproducing apparatus. A brake member (11) is mounted within the casing (1) movably between a braking position wherein it locks the hubs (4a, 4b) against rotation and a releasing position wherein it releases the hubs (4a, 4b) for rotation. The lid (8) is engageable with the brake member (11) and in pivoting from the closed position to the open position effects movement of the brake member (11) from the braking position to the releasing position and in moving from the open position to the closed position effects movement of the brake member (11) from the releasing position to the braking position.
Inventors
- 👤 Meguro C/O Sony Corporation Hiroshi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 16:39
CPC Classifications
G; G11; G11B; G11B23/00; G11B23/02; G11B23/04; G11B23/08; G11B23/087
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
217 words
A magnetic tape cassette comprising: a hollow casing (11) formed with an access opening therein: tape transport means (4a, 4b, 7a, 7b) including a pair of reel hubs (4a, 4b) rotatably mounted within said casing (1) in spaced-apart relation to each other for supporting a magnetic tape (6) wound thereon, said tape transport means (4a, 4b, 7a, 7b) defining a tape run adjacent to said opening; lid means (8); mounting means (8d, 8d) mounting said lid (8) means movably on said casing (1) between a closed position wherein it covers said opening, thereby affording protection to said tape (6), and an open position wherein it uncovers said opening, thereby exposing said tape (6) for cooperation with recording-reproducing apparatus; and brake means (11) mounted within said casing (1) movably between a braking position wherein it locks said hubs (4a, 4b) against rotation and a releasing position wherein it releases said hubs (4a, 4b) for rotation; said lid (8) means being engageable with said brake means (11) and in moving from said closed position to said open position effecting movement of said brake means (11) from said braking position to said releasing position and in moving from said open position to said closed position effecting movement of said brake means (11) from said releasing position to said braking position.
Claim 2
Dependent Claim
217 words
A magnetic tape cassette comprising: a hollow casing (11) formed with an access opening therein: tape transport means (4a, 4b, 7a, 7b) including a pair of reel hubs (4a, 4b) rotatably mounted within said casing (1) in spaced-apart relation to each other for supporting a magnetic tape (6) wound thereon, said tape transport means (4a, 4b, 7a, 7b) defining a tape run adjacent to said opening; lid means (8); mounting means (8d, 8d) mounting said lid (8) means movably on said casing (1) between a closed position wherein it covers said opening, thereby affording protection to said tape (6), and an open position wherein it uncovers said opening, thereby exposing said tape (6) for cooperation with recording-reproducing apparatus; and brake means (11) mounted within said casing (1) movably between a braking position wherein it locks said hubs (4a, 4b) against rotation and a releasing position wherein it releases said hubs (4a, 4b) for rotation; said lid (8) means being engageable with said brake means (11) and in moving from said closed position to said open position effecting movement of said brake means (11) from said braking position to said releasing position and in moving from said open position to said closed position effecting movement of said brake means (11) from said releasing position to said braking position.
Claim 3
Dependent Claim
29 words
A magnetic tape cassette according to claim 1; wherein: said mounting means comprises pivot means (8d, 8d) whereby said lid means (8) pivots between said closed and open positions.
Claim 4
Dependent Claim
106 words
A magnetic tape cassette according to claim 1; wherein: said opening is elongated in a given direction; said lid means (8) is elongated in said direction and formed adjacent to opposite ends thereof with first and second actuating means (8a, 8b), respectively; said brake means (11) includes a portion elongated in said direction and formed adjacent to said first and second actuating means (8a, 8b) with first and second tab means (11g, 11h), respectively; and said engaging of said brake means (11) by said lid means (8) includes engaging of said first and second tab means (11g, 11h) by said first and second actuating means, respectively.
Claim 5
Dependent Claim
155 words
A magnetic tape cassette according to claim 1; wherein: said opening is elongated in a given direction; said lid means (8) is elongated in said direction and formed adjacent to opposite ends thereof with first and second arms (8a, 8b), respectively, said arms (8a, 8b) lying in spaced-apart planes respectively perpendicular to said direction; said mounting means comprises first and second pivot means (8d, 8d) connected to said casing (1) and respectively connected to said arms (8a, 8b), whereby said lid means (8) pivots between said closed and open positions; said brake means (11) includes a portion (11a) elongated in said direction and formed adjacent to said first and second arms (8a, 8b) with first and second tab means (11g, 11h), respectively; and said engaging of said brake means (11) by said lid means (8) includes engaging of said first and second tab means (11g, 11h) and said first and second arms (8a, 8b), respectively.
Claim 6
Dependent Claim
78 words
A magnetic tape cassette according to claim 4; wherein: said casing (1) is formed with a pair of support walls (12, 12) respectively extending between said brake means (11) and said arms (8a, 8b), each of said support walls (12, 12) being formed with an aperture (13, 13) therein and each of said tab means (11g, 11h) extending through a respective one of said apertures (13, 13) for engagement with a respective one of said arms (8a, 8b).
Claim 7
Dependent Claim
85 words
A magnetic tape cassette according to claim 4; wherein: said casing (1) is formed with a pair of support walls (20, 20) respectively adjacent and in supporting relation to said tab means (11g, 11h), each of said tab means (11g, 11h) lying on the outside of a respective one of said support walls (20, 20) and when engaged by a respective one of said arms (8a, 8b) lying between said one of said arms (8a, 8b) and said one of said support walls (20, 20).
References Cited (Backward Citations)
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