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US4587584A Expired / Lapsed US ⏱️ 0.0 years remaining

Rewind lever for a reciprocating type tape recorder

Assignee: Sanyo Electric Co Ltd
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Filing: 1982-09-24
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Granted: 1986-05-06
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Expires: 2002-09-24
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Abstract

Abstract The disclosure is directed to an improved reciprocating type cassette tape recorder which is arranged to effect the function of a selected pushbutton irrespective of a running direction of a magnetic tape by providing pushbuttons exclusive for fast forwarding and rewinding.

Inventors

  • 👤 Kunio Tutino

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 16:52
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/18; G11B15/44; G11B15/442

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 265 words
In a reciprocating type cassette tape recorder for use with a magnetic tape cassette accommodating therein a magnetic tape, which comprises a magnetic head means, a pair of pinch rollers selectively brought into pressure contact with a pair of capstans, a magnetic tape driving mechanism for driving the magnetic tape selectively in first and second directions, and means for changing over said magnetic tape driving mechanism further including a first gear normally driven for rotation by a driving means, a magnetic tape driving mechanism change-over lever associated with said magnetic tape driving mechanism for the changing-over of the tape direction, a second gear so engaged with said first gear and the magnetic tape driving mechanism change-over lever as to cause said magnetic tape driving change-over lever to pivot from one position to another, and a stopper lever for preventing said second gear from rotation, the improvement comprising a rewind lever formed with first and second taper edges, and an actuating stepped portion, so that upon depression of said rewind lever for actuation, said first taper edge controls said stopper lever so as to change-over the running direction of the magnetic tape from the first direction to the second direction, with said actuating stepped portion simultaneously causing the pinch roller to disengage from the capstan and upon restoration of said rewind lever for releasing, said second taper edge controls said stopper lever so as to again change-over the running direction of the magnetic tape from the second direction to the first direction, with said actuating stepped portion simultaneously causing the pinch roller to engage the capstan.
Claim 2
Dependent Claim 265 words
In a reciprocating type cassette tape recorder for use with a magnetic tape cassette accommodating therein a magnetic tape, which comprises a magnetic head means, a pair of pinch rollers selectively brought into pressure contact with a pair of capstans, a magnetic tape driving mechanism for driving the magnetic tape selectively in first and second directions, and means for changing over said magnetic tape driving mechanism further including a first gear normally driven for rotation by a driving means, a magnetic tape driving mechanism change-over lever associated with said magnetic tape driving mechanism for the changing-over of the tape direction, a second gear so engaged with said first gear and the magnetic tape driving mechanism change-over lever as to cause said magnetic tape driving change-over lever to pivot from one position to another, and a stopper lever for preventing said second gear from rotation, the improvement comprising a rewind lever formed with first and second taper edges, and an actuating stepped portion, so that upon depression of said rewind lever for actuation, said first taper edge controls said stopper lever so as to change-over the running direction of the magnetic tape from the first direction to the second direction, with said actuating stepped portion simultaneously causing the pinch roller to disengage from the capstan and upon restoration of said rewind lever for releasing, said second taper edge controls said stopper lever so as to again change-over the running direction of the magnetic tape from the second direction to the first direction, with said actuating stepped portion simultaneously causing the pinch roller to engage the capstan.
Claim 3
Dependent Claim 50 words
A reciprocating type cassette tape recorder as claimed in claim 1, further including a sensor means for detecting increase in a tension of the magnetic tape at terminal end portions of said magnetic tape, and a transmission lever means for transmitting displacement of said sensor means to said stopper lever.
Claim 4
Dependent Claim 45 words
A reciprocating type cassette tape recorder as claimed in claim 2, wherein said transmission lever means is arranged to engage a projection of a fly-wheel through the displacement of said sensor means so as to drive said stopper lever by rotational force of said fly-wheel.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1989-05-05 1989-11-04 1990-05-06 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1993-05-05 1993-11-04 1994-05-06 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1997-05-05 1997-11-04 1998-05-06 $7700.00 Window Closed / Lapsed

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