US4893295A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Front loading disk player
Assignee: Pioneer Corp
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Filing: 1988-12-13
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Granted: 1990-01-09
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Expires: 2008-12-13
Abstract
Abstract A front loading disc player is disclosed which comprises a housing, a play mechanism including a turntable, a carrier for carrying a disc to be played, and a projection/accommodation mechanism for moving the carrier so as to project/accommodate the carrier out-of-into the housing to perform loading/ejection of the disc. The projection/accommodation mechanism includes moving members movably provided within said housing, a driving force application unit for applying a driving force to the moving members, and a carrier moving mechanism for moving the carrier in a horizontal direction and a vertical direction in response to the movement of the moving members. The carrier moving mechanism is provided with a speed multiplier for moving the carrier at a speed higher than the moving speed of the moving members as the moving members move.
Inventors
- 👤 Ryo Matsuura
- 👤 Nobuyuki Isobe
- 👤 Masao Kase
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:18
CPC Classifications
G; G11; G11B; G11B17/00; G11B17/02; G11B17/04; G11B17/05; G11B17/053; G11B17/056; G11B17/022; G11B17/028; G11B17/035
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
145 words
A front loading disc player, comprising: a housing; play means including a turntable; a carrier for carrying a disc to be played; and projection/accommodation means for moving said carrier so as to project/accommodate said carrier out-of/into said housing, said projection/accommodation means including moving members movably provided within said housing, means for applying a driving force to said moving members, and carrier moving means for moving said carrier in a horizontal direction and a vertical direction in response to the movement of said moving members in a horizontal direction, said carrier moving means including a speed multiplier mechanism for moving said carrier at a higher rate of speed than that of said moving members as said moving members move in a horizontal direction, said speed multiplier mechanism being connected with said carrier in the middle of the movement of said moving members in the horizontal direction.
Claim 2
Dependent Claim
145 words
A front loading disc player, comprising: a housing; play means including a turntable; a carrier for carrying a disc to be played; and projection/accommodation means for moving said carrier so as to project/accommodate said carrier out-of/into said housing, said projection/accommodation means including moving members movably provided within said housing, means for applying a driving force to said moving members, and carrier moving means for moving said carrier in a horizontal direction and a vertical direction in response to the movement of said moving members in a horizontal direction, said carrier moving means including a speed multiplier mechanism for moving said carrier at a higher rate of speed than that of said moving members as said moving members move in a horizontal direction, said speed multiplier mechanism being connected with said carrier in the middle of the movement of said moving members in the horizontal direction.
Claim 3
Dependent Claim
114 words
The player according to claim 1, in which said carrier moving means includes a pair of supporting members for movably supporting opposite sides of said carrier, and a chassis having opposite sides which sandwich said carrier and said supporting members therebetween, said opposite sides of said chassis respectively having L-shaped guide holes, said supporting members respectively having portions movably inserted into said guide holes correspondingly, said moving members being arranged to be movable in a horizontal direction and having cam holes engaged with said portions respectively, said cam holes being formed such that said carrier and said supporting members are moved in a vertical direction in response to the movement of said moving members.
Claim 4
Dependent Claim
81 words
The player according to claim 1, in which said speed multiplier mechanism includes a rack member provided on said chassis and provided with a rack portion, another rack portion on said carrier, and a gear mechanism constituted by a plurality of gears, one of said plurality of gears at a first stage and another of said plurality of gears at a final stage of said gear mechanism being engaged with said rack portions of said rack member and said carrier respectively.
Claim 5
Dependent Claim
26 words
The player according to claim 3, in which said rack member is arranged so as to move in said vertical direction together with said supporting members.
Claim 6
Dependent Claim
142 words
A front loading disc player comprising: a housing; play means including a turntable; a carrier for carrying a disc to be played; and projection/accommodation means for moving said carrier so as to project/accommodate said carrier out-of/into said housing; said projection/accommodation means including a rack portion formed on said carrier, a gear engaged with said rack portion, and a driving source for driving said gear, said carrier having a first engageable alignment means and said gear having teeth and a second engageable alignment means, said first and second alignment means respectively having shapes complementary to each other, and engaging one another so as to realize said gear and said rack portion in correct engagement with one another, said second engageable alignment means being released from engagement with said first engageable alignment means prior to the engagement of said gear by said rack portion.
Claim 7
Dependent Claim
142 words
A front loading disc player comprising: a housing; play means including a turntable; a carrier for carrying a disc to be played; and projection/accommodation means for moving said carrier so as to project/accommodate said carrier out-of/into said housing; said projection/accommodation means including a rack portion formed on said carrier, a gear engaged with said rack portion, and a driving source for driving said gear, said carrier having a first engageable alignment means and said gear having teeth and a second engageable alignment means, said first and second alignment means respectively having shapes complementary to each other, and engaging one another so as to realize said gear and said rack portion in correct engagement with one another, said second engageable alignment means being released from engagement with said first engageable alignment means prior to the engagement of said gear by said rack portion.
Claim 8
Dependent Claim
25 words
The player according to claim 5, wherein said second engageable alignment means includes a straight groove extending in a direction of movement of said carrier.
Claim 9
Dependent Claim
25 words
The player according to claim 6, wherein said first engageable alignment means includes a straight protrusion extending in a direction of movement of said carrier.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-01-08 | 1993-07-10 | 1994-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-01-08 | 1997-07-10 | 1998-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-01-08 | 2001-07-10 | 2002-01-09 | $7700.00 | Window Closed / Lapsed |