US3869130A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spindle adapter apparatus
Assignee: Pioneer Corp
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Filing: 1973-10-11
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Granted: 1975-03-04
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Expires: 1993-10-11
Abstract
Abstract A spindle adapter apparatus having two stop plates separated by a distance equal to the thickness of one record, each of said stop plates being movable back and forth between an extended position in which it can support one or more records and a retracted position in which records can be slid over it without interference. The location of the stop plates is controlled by an operative shaft which is axially movable among three axial positions and rotatably movable between two rotary positions. If the operative shaft is moved in an appropriate sequence by external means, the stop plates are caused to move in a manner permitting the following events in sequential order: (1) a stack of records is first supported entirely by the lower stop plate, the upper stop plate being in its retracted position, (2) the upper stop plate is then moved from its retracted to its extended position, assuming the support of all but the bottom record, (3) the lower stop plate is moved to its retracted position, permitting the bottom record to fall onto a turntable, and (4) the lower stop plate is moved to its extended position while the upper stop plate is moved to its retracted position, permitting the remaining records to drop from the position in which they had been supported by the upper stop plate to a position in which they are supported by the lower stop plate.
Inventors
- 👤 Toyonori Igata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:05
CPC Classifications
G; G11; G11B; G11B17/00; G11B17/08; G11B17/12; G11B17/16
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
603 words
A spindle adapter apparatus comprising: 1. a hollow cylinder the exterior of which is shaped to engage the central aperture of records to be played; 2. a first stop plate mounted in said hollow cylinder and movable between a first position in which it protrudes through the external cylindrical periphery of said cylinder and a second position in which it is located entirely internally of the external cylindrical periphery of said hollow cylinder, whereby said first stop plate is adapted to support one or more records above a turntable when in its first position; 3. a second stop plate mounted in said hollow cylinder a distance below said first stop plAte equal to the thickness of one record, said second stop plate likewise being movable between a first position in which it protrudes from the external cylindrical periphery of said cylinder and a second position in which it is located entirely internally of the external cylindrical periphery of said hollow cylinder, whereby said second stop plate is likewise adapted to support one or more records above the turntable when in its first position; 4. an operative shaft mounted in said hollow cylinder coaxially thereof, axially movable therein among a fully extended first axial position, an intermediate second axial position, and a fully contracted third axial position, and rotatably movable therein between first and second rotary positions; 5. means for operatively connecting said operative axis to said first and second stop plates so that, a. when said first stop plate is in its first position, said second stop plate is likewise in its first position, and said operative shaft is moved by external means from said first axial position to said third axial position while being retained in said first rotary position, said first stop plate is moved from its first position to its second position, permitting one or more records to be slid down over said hollow cylinder to a position to be supported by said second stop plate, b. when said first stop plate is in its second position, said second stop plate is in its first position, and said operative shaft is moved by external means from said third axial position to said second axial position while being retained in said first rotary position, said first stop plate is moved from its second position to its first position, wherein said first stop plate is in a position to support all but the bottom record of a plurality of records previously supported by said second stop plate, c. when said first stop plate is in its first position, said second stop plate is likewise in its first position, and said operative shaft is moved by external means from said second axial position to said first axial position and from said first rotary position to said second rotary position, said second stop plate is moved from its first position to its second position, permitting a record supported by said second stop plate to be released, and d. when said first stop plate is in its first position, said second stop plate is in its second position, and said operative shaft is moved by external means from said first axial position to said third axial position and from said second rotary position to said first rotary position, said second stop plate is moved from its second position to its first position and said first stop plate is moved from its first position to its second position, permitting any record discs supported by said first stop plate to slide down over said hollow cylinder to a position to be supported by said second stop plate.
Claim 2
Dependent Claim
603 words
A spindle adapter apparatus comprising: 1. a hollow cylinder the exterior of which is shaped to engage the central aperture of records to be played; 2. a first stop plate mounted in said hollow cylinder and movable between a first position in which it protrudes through the external cylindrical periphery of said cylinder and a second position in which it is located entirely internally of the external cylindrical periphery of said hollow cylinder, whereby said first stop plate is adapted to support one or more records above a turntable when in its first position; 3. a second stop plate mounted in said hollow cylinder a distance below said first stop plAte equal to the thickness of one record, said second stop plate likewise being movable between a first position in which it protrudes from the external cylindrical periphery of said cylinder and a second position in which it is located entirely internally of the external cylindrical periphery of said hollow cylinder, whereby said second stop plate is likewise adapted to support one or more records above the turntable when in its first position; 4. an operative shaft mounted in said hollow cylinder coaxially thereof, axially movable therein among a fully extended first axial position, an intermediate second axial position, and a fully contracted third axial position, and rotatably movable therein between first and second rotary positions; 5. means for operatively connecting said operative axis to said first and second stop plates so that, a. when said first stop plate is in its first position, said second stop plate is likewise in its first position, and said operative shaft is moved by external means from said first axial position to said third axial position while being retained in said first rotary position, said first stop plate is moved from its first position to its second position, permitting one or more records to be slid down over said hollow cylinder to a position to be supported by said second stop plate, b. when said first stop plate is in its second position, said second stop plate is in its first position, and said operative shaft is moved by external means from said third axial position to said second axial position while being retained in said first rotary position, said first stop plate is moved from its second position to its first position, wherein said first stop plate is in a position to support all but the bottom record of a plurality of records previously supported by said second stop plate, c. when said first stop plate is in its first position, said second stop plate is likewise in its first position, and said operative shaft is moved by external means from said second axial position to said first axial position and from said first rotary position to said second rotary position, said second stop plate is moved from its first position to its second position, permitting a record supported by said second stop plate to be released, and d. when said first stop plate is in its first position, said second stop plate is in its second position, and said operative shaft is moved by external means from said first axial position to said third axial position and from said second rotary position to said first rotary position, said second stop plate is moved from its second position to its first position and said first stop plate is moved from its first position to its second position, permitting any record discs supported by said first stop plate to slide down over said hollow cylinder to a position to be supported by said second stop plate.
Claim 3
Dependent Claim
68 words
a first stop plate mounted in said hollow cylinder and movable between a first position in which it protrudes through the external cylindrical periphery of said cylinder and a second position in which it is located entirely internally of the external cylindrical periphery of said hollow cylinder, whereby said first stop plate is adapted to support one or more records above a turntable when in its first position;
Claim 4
Dependent Claim
68 words
a first stop plate mounted in said hollow cylinder and movable between a first position in which it protrudes through the external cylindrical periphery of said cylinder and a second position in which it is located entirely internally of the external cylindrical periphery of said hollow cylinder, whereby said first stop plate is adapted to support one or more records above a turntable when in its first position;
Claim 5
Dependent Claim
67 words
A spindle adapter apparatus as claimed in claim 1 and further comprising a third stop plate mounted in said hollow cylinder and oppositely disposed relative to said first stop plate at the same axial level as said first stop plate, said third stop plate being operatively connected to said operative shaft so that its movements are the mirror image of the movements of said first stop plate.
Claim 6
Dependent Claim
67 words
A spindle adapter apparatus as claimed in claim 1 and further comprising a fourth stop plate mounted in said hollow cylinder and oppositely disposed relative to said second stop plate at the same axial level as said second stop plate, said fourth stop plate being operatively connected to said operative axis so that its movements are the mirror image of the movements of said second stop plate.
Claim 7
Dependent Claim
88 words
a second stop plate mounted in said hollow cylinder a distance below said first stop plAte equal to the thickness of one record, said second stop plate likewise being movable between a first position in which it protrudes from the external cylindrical periphery of said cylinder and a second position in which it is located entirely internally of the external cylindrical periphery of said hollow cylinder, whereby said second stop plate is likewise adapted to support one or more records above the turntable when in its first position;
Claim 8
Dependent Claim
88 words
a second stop plate mounted in said hollow cylinder a distance below said first stop plAte equal to the thickness of one record, said second stop plate likewise being movable between a first position in which it protrudes from the external cylindrical periphery of said cylinder and a second position in which it is located entirely internally of the external cylindrical periphery of said hollow cylinder, whereby said second stop plate is likewise adapted to support one or more records above the turntable when in its first position;
Claim 9
Dependent Claim
42 words
an operative shaft mounted in said hollow cylinder coaxially thereof, axially movable therein among a fully extended first axial position, an intermediate second axial position, and a fully contracted third axial position, and rotatably movable therein between first and second rotary positions;
Claim 10
Dependent Claim
42 words
an operative shaft mounted in said hollow cylinder coaxially thereof, axially movable therein among a fully extended first axial position, an intermediate second axial position, and a fully contracted third axial position, and rotatably movable therein between first and second rotary positions;
Claim 11
Dependent Claim
21 words
A spindle adapter apparatus as claimed in claim 1 wherein said first stop plate is normally biased towards its first position.
Claim 12
Dependent Claim
376 words
means for operatively connecting said operative axis to said first and second stop plates so that, a. when said first stop plate is in its first position, said second stop plate is likewise in its first position, and said operative shaft is moved by external means from said first axial position to said third axial position while being retained in said first rotary position, said first stop plate is moved from its first position to its second position, permitting one or more records to be slid down over said hollow cylinder to a position to be supported by said second stop plate, b. when said first stop plate is in its second position, said second stop plate is in its first position, and said operative shaft is moved by external means from said third axial position to said second axial position while being retained in said first rotary position, said first stop plate is moved from its second position to its first position, wherein said first stop plate is in a position to support all but the bottom record of a plurality of records previously supported by said second stop plate, c. when said first stop plate is in its first position, said second stop plate is likewise in its first position, and said operative shaft is moved by external means from said second axial position to said first axial position and from said first rotary position to said second rotary position, said second stop plate is moved from its first position to its second position, permitting a record supported by said second stop plate to be released, and d. when said first stop plate is in its first position, said second stop plate is in its second position, and said operative shaft is moved by external means from said first axial position to said third axial position and from said second rotary position to said first rotary position, said second stop plate is moved from its second position to its first position and said first stop plate is moved from its first position to its second position, permitting any record discs supported by said first stop plate to slide down over said hollow cylinder to a position to be supported by said second stop plate.
Claim 13
Dependent Claim
376 words
means for operatively connecting said operative axis to said first and second stop plates so that, a. when said first stop plate is in its first position, said second stop plate is likewise in its first position, and said operative shaft is moved by external means from said first axial position to said third axial position while being retained in said first rotary position, said first stop plate is moved from its first position to its second position, permitting one or more records to be slid down over said hollow cylinder to a position to be supported by said second stop plate, b. when said first stop plate is in its second position, said second stop plate is in its first position, and said operative shaft is moved by external means from said third axial position to said second axial position while being retained in said first rotary position, said first stop plate is moved from its second position to its first position, wherein said first stop plate is in a position to support all but the bottom record of a plurality of records previously supported by said second stop plate, c. when said first stop plate is in its first position, said second stop plate is likewise in its first position, and said operative shaft is moved by external means from said second axial position to said first axial position and from said first rotary position to said second rotary position, said second stop plate is moved from its first position to its second position, permitting a record supported by said second stop plate to be released, and d. when said first stop plate is in its first position, said second stop plate is in its second position, and said operative shaft is moved by external means from said first axial position to said third axial position and from said second rotary position to said first rotary position, said second stop plate is moved from its second position to its first position and said first stop plate is moved from its first position to its second position, permitting any record discs supported by said first stop plate to slide down over said hollow cylinder to a position to be supported by said second stop plate.
Claim 14
Dependent Claim
69 words
A spindle adapter apparatus as claimed in claim 4 wherein the normal biasing of said first stop plate is accomplished by means of a first leaf spring mounted on a first controL stand axially slidable on a fixed shaft which is mounted in the interior of said hollow cylinder co-axially with said operative shaft, said first leaf spring being butted against an interior surface of said first stop plate.
Claim 15
Dependent Claim
140 words
A spindle adapter apparatus as claimed in claim 5 wherein the movement of said first stop plate from its first position to its second position is accomplished by means of a portion of said first stop plate which engages a portion of the interior of said hollow cylinder which is sloped at an angle to said fixed axis, whereby the axial motion of said first control stand on said fixed shaft causes said portion of said first stop plate to bear against said sloped portion of the interior of said hollow cylinder, causing said first control stand to move from its first position to its second position as said first control stand is slid axially on said fixed shaft in the direction in which said sloped portion of the interior of said hollow cylinder is sloped towards said fixed axis.
Claim 16
Dependent Claim
21 words
A spindle adapter apparatus as claimed in claim 1 wherein said second stop plate is normally biased towards its first position.
Claim 17
Dependent Claim
54 words
A spindle adapter apparatus as claimed in claim 7 wherein the normal biasing of said second stop plate is accomplished by means of a second leaf spring mounted on a second control stand fixedly mounted on said operative shaft, said second leaf spring being butted against an interior surface of said second stop plate.
Claim 18
Dependent Claim
165 words
A spindle adapter apparatus as claimed in claim 8 wherein the movement of said second stop plate from its first position to its second position is accomplished by means of a cam mounted on said operative shaft adjacent to said second stop plate, said cam having an operative pin thereon radially spaced from said operative shaft but being disposed generally parallel thereto and located so as to engage an outwardly facing inner surface of said second stop plate, whereby, when said operative shaft is rotated from its first rotary position to its second rotary position, the component of said motion of the operative pin parallel to a line between the operative shaft and the exterior portion of the second stop plate causes the second stop plate to move from its first position to its second position while the component of the motion of the operative pin perpendicular to the line between said operative shaft and the exterior portion of the second stop plate is lost.
References Cited (Backward Citations)
US2898117A
Cited
US3241838A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-03 | 1978-09-02 | 1979-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-03 | 1982-09-02 | 1983-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-03 | 1986-09-02 | 1987-03-04 | $7700.00 | Window Closed / Lapsed |