US3764757A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic recording and/or reproducing apparatus with tape guide and pick-up system for use with a tape cartridge
Assignee: Sony Corp
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Filing: 1972-02-04
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Granted: 1973-10-09
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Expires: 1992-02-04
Abstract
Abstract In a magnetic recording and/or reproducing apparatus having a tape guide drum, at least one rotary magnetic head moved in a circular path coinciding with the circumferential surface of the drum for scanning a magnetic tape wrapped about at least a portion of that surface, a tape supply, such as, a cassette containing reels on which a magnetic tape is wound, and a holder for receiving and positioning the tape supply at a distance from the guide drum; a first tape engaging member is provided for drawing an initial loop of tape from the supply across an arcuate path of travel of a rotatable support, for example, a ring, which extends around the guide drum, and a second tape engaging member carried by the rotatable support engages the initial tape loop and further extends the loop for wrapping one side of the extended tape loop about at least a portion of the guide drum surface in response to turning of the rotatable support. The second tape engaging member is preferably constituted by a pinch roller which is brought adjacent a capstan for cooperating with the latter in driving the tape after the latter has been wrapped about the guide drum. Further, the rotatable support also carries additional tape guide members which engage the other or return side of the extended loop for holding such return side away from the guide drum surface.
Inventors
- 👤 K Inaga
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:29
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/675; G11B15/67563; G11B15/67565; G11B15/60; G11B15/66; G11B15/665; G11B15/6653; G11B15/6655; G11B5/00; G11B5/127
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
222 words
A magnetic recording and/or reproducing apparatus comprising a cylinDrical tape guide drum, at least one rotary magnetic head moved in a circular path substantially coinciding with the circumferential surface of said drum, tape supply means containing a magnetic tape, holder means spaced from said guide drum for receiving and positioning said tape supply means, support means rotatable around said drum in an arcuate path that extends between the latter and said holder means, first tape engaging means movable between an inactive position where it extends into said tape supply means and is engageable with said tape supply means positioned on said holder means and an operative position where said first tape engaging means draws an initial relatively small loop of said tape from said tape supply means across said arcuate path of the rotatable support means between said holder means and said drum, and second tape engaging means carried by said rotatable support means and moving with the latter in said arcuate path outside of said tape supply means for engaging said initial loop of tape drawn from said tape supply means by said first tape engaging means and, after such engagement, further extending said loop for wrapping one side of the extended loop about at least a portion of said circumferential surface of the drum for scanning by said rotary head.
Claim 2
Dependent Claim
222 words
A magnetic recording and/or reproducing apparatus comprising a cylinDrical tape guide drum, at least one rotary magnetic head moved in a circular path substantially coinciding with the circumferential surface of said drum, tape supply means containing a magnetic tape, holder means spaced from said guide drum for receiving and positioning said tape supply means, support means rotatable around said drum in an arcuate path that extends between the latter and said holder means, first tape engaging means movable between an inactive position where it extends into said tape supply means and is engageable with said tape supply means positioned on said holder means and an operative position where said first tape engaging means draws an initial relatively small loop of said tape from said tape supply means across said arcuate path of the rotatable support means between said holder means and said drum, and second tape engaging means carried by said rotatable support means and moving with the latter in said arcuate path outside of said tape supply means for engaging said initial loop of tape drawn from said tape supply means by said first tape engaging means and, after such engagement, further extending said loop for wrapping one side of the extended loop about at least a portion of said circumferential surface of the drum for scanning by said rotary head.
Claim 3
Dependent Claim
177 words
A magnetic recording and/or reproducing apparatus according to claim 1, in which said tape supply means includes reels having said magnetic tape wound thereon and tape guide members guiding a run of said tape between said reels to extend at a substantial angle to the plane of rotation of said rotatable support means when said tape supply means is positioned by said holder means, said first tape engaging means is engageable, in said inactive position, with said run of the tape so that said initial loop of tape drawn from said tape supply means by movement of said first tape engaging means to said operative position has its opposite sides at different levels with respect to said plane of rotation of said support means, and said second tape engaging means extends substantially normal to said plane of rotation of the support means for moving past one of said sides of the initial loop and engaging the other of said sides of the initial loop during the movement of said second tape engaging means in said arcuate path.
Claim 4
Dependent Claim
54 words
A magnetic recording and/or reproducing apparatus according to claim 2, in which said reels of the tape supply means are superposed one above the other with said tape run and said initial loop slanting downwardly from said one reel to said other reel when said tape supply means is positioned by said holder means.
Claim 5
Dependent Claim
89 words
A magnetic recording and/or reproducing apparatus according to claim 3, in which said second tape engaging means extends upwardly from said rotatable support means to pass under said one side of said initial loop extending from said one reel and to engage said other side of the initial loop extending from said other reel upon said movement of the second tape engaging means in said arcuate path between said holder means and said drum in the direction from said one side toward said other side of said initial loop.
Claim 6
Dependent Claim
83 words
A magnetic recording and/or reproducing apparatus according to claim 1, in which said support means is rotatable between first and second positions which are substantially angularly displaced from each other, and further comprising actuating means responsive to movements of said rotatable support means from and to said first position of the support means for moving said first tape engaging means from its said inoperative position to said operative position and for returning said first tape engaging means to said inoperative position thereof, respectively.
Claim 7
Dependent Claim
118 words
A magnetic recording and/or reproducing apparatus according to claim 5, in which said first tape engaging means includes a first tape guide pin carried by a lever which is swingable on a fixed pivot to move said first tape guide pin between said inoperative and operative positions, and in which saId actuating means includes spring means yieldably urging said lever in the direction for moving said first tape guide pin to said operative position, abutment means on said rotatable support means, and means connected with said lever and engageable by said abutment means when said support means is in said first position for overcoming said spring means and moving said first tape guide pin to said inoperative position.
Claim 8
Dependent Claim
49 words
A magnetic recording and/or reproducing apparatus according to claim 6, in which said lever extends from said pivot generally in the lateral direction between said drum and said holder means so that said first tape guide pin travels across said arcuate path in moving between inoperative and operative positions.
Claim 9
Dependent Claim
64 words
A magnetic recording and/or reproducing apparatus according to claim 6, in which a fixed pivot is located approximately at the center of the rotational movement of said support means and said first tape guide pin is located on said lever to lie at the outside of said arcuate path and to move substantially parallel to said arcuate path between said inoperative and operative positions.
Claim 10
Dependent Claim
123 words
A magnetic recording and/or reproducing apparatus according to claim 5, in which said holder means is movable between a raised position for receiving said tape supply means with the latter being disposed above said first tape engaging means and a lowered position at which the tape contained by said tape supply means is engageable by said first tape engaging means in said inoperative position of the latter, and further comprising holder control means responsive to the initial and final increments of said movements of said rotatable support means respectively from and to said first position of the support means for moving said holder means from said raised position to said lowered position and for returning said holder means to said raised position, respectively.
Claim 11
Dependent Claim
67 words
A magnetic recording and/or reproducing apparatus according to claim 9, in which said holder means is gravitationally urged to said lowered position thereof, and said holder control means includes abutment means on said rotatable support means, and means connected with holder means and engageable by said abutment means when said rotatable support means is in said first position for retaining said holder means at said raised position.
Claim 12
Dependent Claim
111 words
A magnetic recording and/or reproducing apparatus according to claim 10, in which said first tape engaging means includes a first tape guide pin carried by a lever which is swingable on a fixed pivot for moving said first tape guide pin between said inoperative and operative positions, and in which said actuating means includes spring means yieldably urging said lever in the direction for moving said first tape guide pin to said operative position, and means connected with said lever and engageable by said abutment means when said support means is in said first position for overcoming said spring means and moving said first tape guide pin to said inoperative position.
Claim 13
Dependent Claim
81 words
A magnetic recording and/or reproducing apparatus according to claim 5, in which said second tape engaging means includes a pinch roller rotatably mounted on said rotatable support means to extend into said initial loop during movement of said support means from said first position of the latter, and further comprising a rotary capstan located to be adjacent said pinch roller in said second position of the rotatable support means for cooperation with said pinch roller in driving the magnetic tape therebetween.
Claim 14
Dependent Claim
87 words
A magnetic recording and/or reproducing apparatus according to claim 12, in which said second tape engaging means further includes a plurality of tape guide members extending from said rotatable support means and being spaced apart along said arcuate path in trailing relation to said pinch roller considered in the direction of movement of said support means from said first position to said second position for engaging the other side of said extended loop and holding said oTher side away from said circumferential surface of the guide drum.
Claim 15
Dependent Claim
93 words
A magnetic recording and/or reproducing apparatus according to claim 13, in which said first tape engaging means includes a first tape guide pin and means movably supporting said first tape guide pin for movement across said arcuate path from said inoperative position at the outside of said arcuate path to said inoperative position at the inside of said path, and in which said first tape guide pin, at said operative position, engages said one side of the extended tape loop between said tape supply means and said circumferential surface of the guide drum.
Claim 16
Dependent Claim
88 words
A magnetic recording and/or reproducing apparatus according to claim 13, in which said first tape engaging means includes a first tape guide pin and means movably supporting said first tape guide pin for movement substantially parallel to said arcuate path at the outside of the latter between said inoperative and operative positions, and in which said first tape guide pin, at said operative position, engages said other side of the extended tape loop between said tape guide members on the rotatable support means and said tape supply means.
Claim 17
Dependent Claim
169 words
A magnetic recording and/or reproducing apparatus according to claim 13, in which said tape supply means includes reels having said magnetic tape wound thereon to provide a run of said tape between said reels which extends at a substantial angle to the plane of rotation of said rotatable support means when said tape supply means is positioned by said holder means, said plane of rotation of said rotatable support means is below said tape run at least at the portion of said arcuate path that extends between said holder means and said guide drum so that said initial loop of tape drawn from said tape supply means has its opposite sides at different distances above said plane of rotation, and said pinch roller and tape guide members extend upwardly from said rotatable support means and pass under the side of said initial loop which is at the larger distance from said plane of rotation during the movement of said support means from said first position to said second position.
References Cited (Backward Citations)
US3674942A
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US3643038A
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US3669457A
Cited
US3681539A
Cited
US3660614A
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US3665114A
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US3665120A
Cited
US3673348A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-08 | 1977-04-09 | 1977-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-08 | 1981-04-09 | 1981-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-08 | 1985-04-09 | 1985-10-09 | $7700.00 | Window Closed / Lapsed |