US4101946A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tape playing machine with movable head mount
Assignee: Sony Corp
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Filing: 1976-07-26
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Granted: 1978-07-18
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Expires: 1996-07-26
Abstract
Abstract A tape playing machine which has a novel head deck which is capable of moving back and forth and which is mounted on three rollers so as to obtain smooth parallel back and forth action and wherein one of the normal actuating switches of record-players is eliminated and only five actuating buttons are required. The invention further encompasses plastic molded spring rear cassette mounting members which include a cassette biasing feature as well as a feeler pawl for engaging an opening in the cassette so as to determine whether the tape in the cassette can be erased. Additionally, the reel supporting hubs include a cylindrical member with interlocking fingers engageable with the reels so as to lock the reels to the tape chassis.
Inventors
- 👤 Ryoji Takamatsu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:22
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/02; G11B15/10; G11B15/05; G11B15/06; G11B15/18; G11B15/1883; G11B15/26; G11B15/32; G11B5/00; G11B5/48; G11B5/54
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
83 words
In a tape recorder having a chassis, a head deck slidable mounted for back and forth motion on said chassis in first and second directions, a spring on said head deck with its center connected to said head deck and having two extending projections engageable with locking projections on said head deck so that the spring is under spring tension and adaptable such that by pushing on either extending projection of said spring the head deck can be moved in the first direction.
Claim 2
Dependent Claim
83 words
In a tape recorder having a chassis, a head deck slidable mounted for back and forth motion on said chassis in first and second directions, a spring on said head deck with its center connected to said head deck and having two extending projections engageable with locking projections on said head deck so that the spring is under spring tension and adaptable such that by pushing on either extending projection of said spring the head deck can be moved in the first direction.
Claim 3
Dependent Claim
139 words
In a tape recording/reproducing apparatus comprising a chassis, a first actuating push bar, a second actuating push bar, a head deck mounted on said chassis for back and forth movement in first and second directions, spring means attached to said head deck at a generally central position and having first and second extending portions, said first actuating push bar engageable with said first extending portion and said second actuating push bar engageable with said second extending portion to move said head deck in a first direction, return spring means connected between said chassis and said head deck to move it in a second direction, and stop means for limiting the motion of said head deck in said first direction but allowing said first and second actuating push bars to continue movement after said head deck has engaged said stop.
Claim 4
Dependent Claim
139 words
In a tape recording/reproducing apparatus comprising a chassis, a first actuating push bar, a second actuating push bar, a head deck mounted on said chassis for back and forth movement in first and second directions, spring means attached to said head deck at a generally central position and having first and second extending portions, said first actuating push bar engageable with said first extending portion and said second actuating push bar engageable with said second extending portion to move said head deck in a first direction, return spring means connected between said chassis and said head deck to move it in a second direction, and stop means for limiting the motion of said head deck in said first direction but allowing said first and second actuating push bars to continue movement after said head deck has engaged said stop.
Claim 5
Dependent Claim
30 words
In a tape player according to claim 2 wherein said head deck and said chassis are separated by at three balls which provide bearings between said head deck and chassis.
Claim 6
Dependent Claim
30 words
In a tape player according to claim 3 wherein a first one of said balls is mounted in a first guide and raceway formed between said chassis and head deck.
Claim 7
Dependent Claim
30 words
In a tape deck according to claim 4 wherein a second one of said balls is mounted in a second guide and raceway formed between said chassis and head deck.
Claim 8
Dependent Claim
30 words
In a tape deck according to claim 5 wherein said third one of said balls is mounted in a second guide and raceway formed between said chassis and head deck.
Claim 9
Dependent Claim
16 words
In a tape deck according to claim 6 means urging said head deck and chassis together.
Claim 10
Dependent Claim
44 words
In a tape deck according to claim 7 wherein said means urging said head deck and chassis together comprise a forth ball mounted in slot in said head deck and a spring attached to said chassis and holding said fourth ball in said slot.
Claim 11
Dependent Claim
149 words
In a tape recording/reproducing apparatus comprising a chassis, a first actuating push bar driven by a record button, a second actuating push bar driven by a playback button, a head deck mounted on said chassis for back and forth movement in first and second directions, spring means attached to said head deck at a generally central position and having first and second extending portions, said first actuating push bar engageable with said first extending portion and said second actuating push bar engageable with said second extending portion to move said head deck in a first direction, return spring means connected between said chassis and said head deck to move it in said second direction, and stop means for limiting the motion of said head deck in said first direction but allowing said first and second actuating push bars to continue movement after said head deck has engaged said stop.
Claim 12
Dependent Claim
149 words
In a tape recording/reproducing apparatus comprising a chassis, a first actuating push bar driven by a record button, a second actuating push bar driven by a playback button, a head deck mounted on said chassis for back and forth movement in first and second directions, spring means attached to said head deck at a generally central position and having first and second extending portions, said first actuating push bar engageable with said first extending portion and said second actuating push bar engageable with said second extending portion to move said head deck in a first direction, return spring means connected between said chassis and said head deck to move it in said second direction, and stop means for limiting the motion of said head deck in said first direction but allowing said first and second actuating push bars to continue movement after said head deck has engaged said stop.
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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) | 1981-07-17 | 1982-01-16 | 1982-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-17 | 1986-01-16 | 1986-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-17 | 1990-01-16 | 1990-07-18 | $7700.00 | Window Closed / Lapsed |