Patent US4918552A successfully refreshed from Google Patents.
US4918552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cassette tape recorder having means for preventing cassette vibration during playback/recording
Assignee: Pioneer Corp
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Filing: 1988-08-04
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Granted: 1990-04-17
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Expires: 2008-08-04
Abstract
Abstract A cassette tape recorder is provided for suppressing vibration of a cassette during operation of the tape recorder by placing an elastic vibration suppressing sheet on the surface of a hiding plate. The surface of the suppressing sheet which faces the cassette includes a number of projections. In a second embodiment of the invention, a cassette stabilizer is provided having a device for opening and closing a door of the tape recorder, a pushing member for pushing the cassette placed in a housing of the door, and a pulling coupler which is disengaged from the push member when the door is opened, and which is engaged with the push member when the door is closed for shoving the push member onto the cassette.
Inventors
- 👤 Yoshio Tsutsumi
- 👤 Seiichi Suzuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:31
CPC Classifications
G; G11; G11B; G11B33/00; G11B33/02; G11B33/08; G11B15/00; G11B15/675; G11B15/67581; G11B15/67584; Y; Y10; Y10S; Y10S242/00; Y10S242/907
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
98 words
In a cassette tape recorder of the type having a recess for loading a cassette, a hiding plate located at the back of the recess for hiding an internal mechanism of the tape recorder, the hiding plate having means for positioning the cassette thereon and for moving the tape within the cassette during a playback/recording operation of the recorder, and means for pushing the cassette against the hiding plate, the improvement comprising: an elastic sheet, located on the surface of said hiding plate, for preventing vibration of the cassette which occurs during the playback/recording operation of the recorder.
Claim 2
Dependent Claim
98 words
In a cassette tape recorder of the type having a recess for loading a cassette, a hiding plate located at the back of the recess for hiding an internal mechanism of the tape recorder, the hiding plate having means for positioning the cassette thereon and for moving the tape within the cassette during a playback/recording operation of the recorder, and means for pushing the cassette against the hiding plate, the improvement comprising: an elastic sheet, located on the surface of said hiding plate, for preventing vibration of the cassette which occurs during the playback/recording operation of the recorder.
Claim 3
Dependent Claim
23 words
The tape recorder according to claim 1, wherein the surface of said elastic sheet which faces the cassette has a plurality of projections.
Claim 4
Dependent Claim
19 words
The tape recorder according to claim 2, wherein said plurality of projections are each shaped as a quadrangular pyramid.
Claim 5
Dependent Claim
19 words
The tape recorder according to claim 2, wherein said plurality of projections are each shaped as a triangular pyramid.
Claim 6
Dependent Claim
18 words
The tape recorder according to claim 2, wherein said plurality of projections are each shaped as a cone.
Claim 7
Dependent Claim
19 words
The tape recorder according to claim 2, wherein the thickness of said elastic sheet is reduced at the projections.
Claim 8
Dependent Claim
14 words
The tape recorder according to claim 1, wherein said elastic sheet consists of rubber.
Claim 9
Dependent Claim
165 words
A cassette tape recorder stabilizer having a recess for loading a cassette, a hiding plate located at the back of the recess for hiding an internal mechanism of the tape recorder, the hiding plate having means for positioning the cassette thereon and for moving the tape within the cassette during a playback/recording operation of the recorder, said stabilizer comprising: a door having a housing for supporting the cassette; means for opening and closing said door; a pushing member provided in said housing, said pushing member being operable for pushing the cassette placed therein against the hiding plate; a pulling coupler which is disengaged from said pushing member when said door is opened, and which is engaged with said pushing member after said door is closed for shoving said pushing member onto said cassette after said door is closed; and an elastic sheet located on the surface of the hiding plate for preventing vibration of the cassette which occurs during the playback/recording operation of the recorder.
Claim 10
Dependent Claim
165 words
A cassette tape recorder stabilizer having a recess for loading a cassette, a hiding plate located at the back of the recess for hiding an internal mechanism of the tape recorder, the hiding plate having means for positioning the cassette thereon and for moving the tape within the cassette during a playback/recording operation of the recorder, said stabilizer comprising: a door having a housing for supporting the cassette; means for opening and closing said door; a pushing member provided in said housing, said pushing member being operable for pushing the cassette placed therein against the hiding plate; a pulling coupler which is disengaged from said pushing member when said door is opened, and which is engaged with said pushing member after said door is closed for shoving said pushing member onto said cassette after said door is closed; and an elastic sheet located on the surface of the hiding plate for preventing vibration of the cassette which occurs during the playback/recording operation of the recorder.
Claim 11
Dependent Claim
18 words
The tape recorder according to claim 8, further comprising a motor for operating said opening and closing means.
Claim 12
Dependent Claim
29 words
The tape recorder according to claim 9, further comprising means for causing said pulling coupler to perform the engaging and disengaging actions in response to rotation of said motor.
Claim 13
Dependent Claim
16 words
The tape recorder according to claim 8, wherein said elastic sheet contains a plurality of projections.
Claim 14
Dependent Claim
30 words
The tape recorder according to claim 8, wherein said pulling coupler is engaged with said pushing member when the cassette is placed in a proper position in the tape recorder.
Claim 15
Dependent Claim
56 words
The tape recorder according to claim 8, wherein said pulling coupler includes an engaging member, and wherein said pushing member includes a receiving portion for receiving said engaging member, said engaging member being engaged with the receiving portion of said pushing member when said door is closed so that said pushing member pushes against the cassette.
Claim 16
Dependent Claim
63 words
The tape recorder according to claim 13, further comprising a spring for urging said pushing member in a direction to open the door, said engaging member being operable, when said door is closed, for engaging the receiving portion of said pushing member and for turning said pushing member against the force of said spring so that said pushing member pushes against the cassette.
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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) | 1993-04-16 | 1993-10-16 | 1994-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-04-16 | 1997-10-16 | 1998-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-04-16 | 2001-10-16 | 2002-04-17 | $7700.00 | Window Closed / Lapsed |