EP0400949A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Disc loading apparatus
Assignee: Sony Corp
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Filing: 1990-05-29
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Granted: —
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Expires: 2010-05-29
Abstract
Abstract An optical disc player having a disc tray (4) on which an optical disc (D) is loaded and which is supported to a first chassis (2) so that it can be freely moved between a disc loading position and a disc reproducting position, a second chassis (7) to which a disc rotating device (11) is supported and which is provided so as to move up and down relative to the first chassis, an elevating mechanism (12-18) for moving the second chassis in the up and down direction, an optical pickup supporting portion (20) supported to the second chassis so as to skew relative to a disc surface and on which an optical pickup (24, 25) is provided, a transmission mechanism for transmitting a rotation force of a motor, a rotation operation member rotated by the transmission mechanism and which has a gear portion to be meshed with the disc tray to move the same and a cam groove (39) engaged with the elevating mechanism to move the second chassis in the up and down direction, and a cam member (42) rotated by the rotation operation member and which has a cam groove (43) engaged with the optical pickup supporting portion to skew the same.
Inventors
- 👤 Hiroyuki C/O Sony Corporation Urushibata
- 👤 Kazuya C/O Sony Corporation Okushita
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 11:44
CPC Classifications
G; G11; G11B; G11B17/00; G11B17/02; G11B17/04; G11B17/05; G11B17/053; G11B17/056; G11B17/022; G11B17/028; G11B17/035; G11B7/00; G11B7/002; G11B7/0037; G11B7/08; G11B7/09; G11B7/095; G11B7/0956
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
214 words
An optical disc player comprising: disc carrying means (4) movable between an extended, disc loading position, outside the player body and a retracted position in the player body, drive means (31-4) for moving the disc carrying means (4) between the two positions, elevating means (12-18) for moving a loaded disc to a playing position and a pickup supporting portion (20) carrying an optical pickup head (24, 25), characterized in that: the drive means (31-41) are provided with a rotation operation member (35) having a drive cam groove (39) and for moving the disc carrying means (4) between said extended position and said retracted position; the elevating means (12-18) are engaged with said cam groove (39) of the rotation operation member (35) for moving a player portion (13) in the up and down direction relative to the plane of a loaded disc; the pickup supporting portion (20) is supported on said player portion (13) so as to be skewable relative to the surface of a loaded disc and by a cam member (42) rotatable by said rotation operation member (35) and which has a skew cam groove (43) engagable with said pickup supporting portion (20), the cam member being operable to skew said pickup supporting portion by engagement thereof with said skew cam groove (43).
Claim 2
Dependent Claim
214 words
An optical disc player comprising: disc carrying means (4) movable between an extended, disc loading position, outside the player body and a retracted position in the player body, drive means (31-4) for moving the disc carrying means (4) between the two positions, elevating means (12-18) for moving a loaded disc to a playing position and a pickup supporting portion (20) carrying an optical pickup head (24, 25), characterized in that: the drive means (31-41) are provided with a rotation operation member (35) having a drive cam groove (39) and for moving the disc carrying means (4) between said extended position and said retracted position; the elevating means (12-18) are engaged with said cam groove (39) of the rotation operation member (35) for moving a player portion (13) in the up and down direction relative to the plane of a loaded disc; the pickup supporting portion (20) is supported on said player portion (13) so as to be skewable relative to the surface of a loaded disc and by a cam member (42) rotatable by said rotation operation member (35) and which has a skew cam groove (43) engagable with said pickup supporting portion (20), the cam member being operable to skew said pickup supporting portion by engagement thereof with said skew cam groove (43).
Claim 3
Dependent Claim
53 words
An optical disc player according to claim 1, further comprising a tilt sensor (26) provided on said optical pickup head (24, 25), and wherein said cam member (42) is rotated on the basis of a detected output from said tilt sensor (26) so that said optical pickup supporting portion (20) can be skewed.
Claim 4
Dependent Claim
103 words
An optical disc player according to claim 1 or 2, wherein said drive cam groove (39) of the rotation operation member (35) is comprised of a loading area (39a) corresponding to the movement of said carrying means (4), a chucking area (39b) continuous to said loading area (39a) for moving said elevating means (12-18) in the up and down direction and a tilt area (39c) communicated with said chucking area (39b) said cam member (42) being rotatable to skew said optical pickup supporting portion (20) when the elevating means (12-18) is engaged with the tilt portion (39c) of the drive cam groove (39).
Claim 5
Dependent Claim
47 words
An optical disc player according to claim 1, 2 or 3, wherein said skew cam groove (43) of the cam member (42) has an opening portion (43a) which opposes an engaging member (27) provided in said player portion (13) when said player portion (13) is moved upward.
Claim 6
Dependent Claim
64 words
An optical disc player according to claim 1, 2, 3 or 4 wherein said carrying means (4) includes a disc tray (4) having a concave portion (4a) on which an optical disc can be loaded and said rotation operation member (35) is provided with a gear portion (37) to drive a rack (41) of said disc tray (4) to move said disc tray (4).
Claim 7
Dependent Claim
114 words
An optical disc player comprising: a disc tray (4) on which an optical disc can be loaded and which is supported on a first chassis (2) so as to be movable between a disc loading position and a disc reproduction position; a second chassis (7) which supports a disc rotating mechanism (10) and which can be moved up and down relative to said first chassis (2); elevating means (12-18, 39) for moving said second chassis (7) in the up and down direction; and drive means (31-41) for moving said disc tray and which operates said elevating means (12-18, 39), wherein said second chassis (7) is moved up and down in substantially the vertical direction.
Claim 8
Dependent Claim
114 words
An optical disc player comprising: a disc tray (4) on which an optical disc can be loaded and which is supported on a first chassis (2) so as to be movable between a disc loading position and a disc reproduction position; a second chassis (7) which supports a disc rotating mechanism (10) and which can be moved up and down relative to said first chassis (2); elevating means (12-18, 39) for moving said second chassis (7) in the up and down direction; and drive means (31-41) for moving said disc tray and which operates said elevating means (12-18, 39), wherein said second chassis (7) is moved up and down in substantially the vertical direction.
Claim 9
Dependent Claim
70 words
An optical disc player according to claim 6, wherein said second chassis (7) is provided with an engaging member (16, 17) engaged with an opening (14, 15) formed in a slide member (13) provided on said first chassis (2), said engaging member (16, 17) of said second chassis (7) being moved along said opening (14, 15) when said slide member (13) is slidably moved by said elevating means (12-18, 39).
References Cited (Backward Citations)
No citation records indexed.
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