EP0609024A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Disc recording and/or reproducing apparatus
Assignee: Sony Corp
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Filing: 1994-01-20
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Granted: —
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Expires: 2014-01-20
Abstract
Abstract Recording and/or reproducing apparatus for a magneto-optical recording medium housed within a disc cartridge includes a casing (1), a recording and/or reproducing unit, a transporting unit and a driving unit. The casing (1) includes an opening (3) for introducing and ejecting the disc cartridge. The recording and/or reproducing unit includes a magnetic head (143) for applying a perpendicular magnetic field on the magneto-optical recording medium and is housed within the casing (1). The transporting unit loads the disc cartridge inserted via the opening (3) on the recording and/or reproducing unit. The transporting unit includes a holding section (29) to hold the inserted disc cartridge and a pair of cam members (27,28) to move the holding section (29) in the horizontal direction in the casing (1) and in the vertical direction in the casing in continuation of the movement in the horizontal direction. The driving unit causes the cam members (27,28) to be moved in the horizontal direction in the casing. The cam members are moved in a first direction as a result of insertion of the disc cartridge and set the driving unit into operating states as a result of insertion of the disc cartridge. The cam members (27,28) cause the holding section to be moved in the horizontal direction by a movement of the cam members in a second horizontal direction consecutive to the movement in the first horizontal direction by the driving unit. The cam members cause the holding section to be loaded on the recording and/or reproducing unit by a movement of the cam members (27,28) in a third horizontal direction consecutive to the movement in the second horizontal direction by the driving unit.
Inventors
- 👤 Yutaka C/O Intellectual Property Div. Fukuyama
- 👤 Shinji C/O Intellectual Property Div. Ito
- 👤 Atsushi C/O Intellectual Property Div. Takamatsu
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-10 02:35
CPC Classifications
G; G11; G11B; G11B17/00; G11B17/02; G11B17/04; G11B17/041; G11B17/043; G11B17/0434; G11B11/00; G11B11/10; G11B11/105; G11B11/1055; G11B11/10556; G11B11/10558; G11B17/0401; G11B17/0405; G11B17/0436; G11B17/0438; G11B33/00; G11B33/02; G11B33/027; G11B33/08
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
276 words
Recording and/or reproducing apparatus for a magneto-optical recording medium (203,223) comprising: holding means (30) to hold the magneto-optical recording medium (203,223) introduced therein; a pair of cam members (27,28) having a cam groove (73,74) composed of a first cam groove to move the holding means (30) in a horizontal direction and a second cam groove continuous with the first cam groove and to move the holding means in a vertical direction, the holding means being movable along the cam groove in the horizontal direction and in the vertical direction in continuation of movement in the horizontal direction; means (185) for driving the cam members (27,28) in the horizontal direction; and recording and/or reproducing means for recording and/or reproducing information signals on or from the magneto-optical recording medium loaded therein by the movement of the holding means in the horizontal direction and in the vertical direction in continuation of the movement in the horizontal direction, the recording and/or reproducing means having an optical pickup (148) to radiate a light beam on the magneto-optical recording medium loaded therein and a magnetic head (143) arranged facing the optical pickup unit (148) with the magneto-optical recording medium in-between, the magnetic head (143) being movable between a position proximate to the magneto-optical recording medium (203,223) and a position spaced apart upwardly therefrom, wherein the pair of cam members (27,28) can shift the magnetic head (143) towards the position proximate to the magneto-optical recording medium by a further horizontal movement by the driving means (185) of the pair of cam members (27.28) after loading of the holding means (30) in the recording and/or reproducing means by the pair of cam members (27,28).
Claim 2
Dependent Claim
69 words
Recording and/or reproducing apparatus for a magneto-optical recording medium according to claim 1, wherein, one (28) of the cam members is formed with a further cam groove (109) to drive the magnetic head (143), and wherein the apparatus further comprises lifting means (120) engaged in the further cam groove (109) to drive the magnetic head (143) to move the magnetic head between the proximate position and the spaced position.
Claim 3
Dependent Claim
242 words
A mechanism for loading a recording medium (203,223) in recording and/or reproducing means comprising: holding means (30) to hold the recording medium introduced therein; a pair of cam members (27,28) having a cam groove (73,74) composed of a first cam groove to move the holding means in a horizontal direction and a second cam groove continuous with the first cam groove and to move the holding means in a vertical direction, the holding means (30) being movable along the cam groove in the horizontal direction and in the vertical direction in continuation of the movement in the horizontal direction, and means (185) to drive the cam members (27,28) in the horizontal direction, wherein the cam members (27,28) are moved in a first direction as a result of insertion of the recording medium (203,223), the cam members (27,28) set the driving means (185) into operating states as a result of insertion of the recording medium, the cam members cause the holding means (30) to be moved in a horizontal direction by a movement of the cam members in a second horizontal direction in continuation of a movement thereof in the first horizontal direction by the driving means, and the cam members (27,28) cause the holding means to be loaded on the recording and/or reproducing means by a movement of the cam members in a third horizontal direction in continuation of the movement thereof in the second horizontal direction by the driving means (185).
Claim 4
Dependent Claim
64 words
A mechanism for loading a recording medium in recording and/or reproducing means according to claim 3, wherein the recording and/or reproducing means comprises a head (143) which is lowered by a further horizontal movement by the driving means (185) of the pair of cam members (27,28) after loading of the holding means in the recording and/or reproducing means by the pair of cam members.
Claim 5
Dependent Claim
54 words
A mechanism for loading a recording medium in recording and/or reproducing means according to claim 3, comprising a first lever (62) rotated by the recording medium inserted into the holding means (30), and a second lever (68) rotated by the rotation of the first lever (62) to permit the movement of the holding means.
Claim 6
Dependent Claim
58 words
A mechanism for loading a recording medium in recording and/or reproducing means according to claim 3, wherein the holding means comprises a slider (31) to eject the recording medium inserted therein, the slider (31) being moved at a pre-set speed to eject the recording medium by a horizontal movement of the cam members (27,28) in the ejecting direction.
Claim 7
Dependent Claim
278 words
Recording and/or reproducing apparatus for a magneto-optical recording medium (203,223) housed within a disc cartridge (201,221), comprising: a casing (1) having an opening (3) by which the disc cartridge is introduced into or ejected from the casing (1); recording and/or reproducing means (143,148) housed within the casing and having a magnetic head (143) to apply a perpendicular magnetic field to the magneto-optical recording medium; transporting means to load the disc cartridge inserted via the opening (3) on the recording and/or reproducing means, the transporting means having holding means (30) to hold the inserted disc cartridge and a pair of cam members (27,28) having cam grooves (73,74) to move the holding means (30) in the horizontal direction in the casing (1) and in the vertical direction consecutive to the movement in the horizontal direction in the casing; and driving means (185) to drive the cam members (27,28) in the horizontal direction in the casing, wherein the cam members (27,28) are moved in a first direction as a result of insertion of the disc cartridge, the cam members setting the driving means (185) into operating states as a result of insertion of the disc cartridge, the cam members causing the holding means (30) to be moved in the horizontal direction by a movement of the cam members (27,28) in a second horizontal direction consecutive to a movement thereof in the first horizontal direction by the driving means, the cam members (27,28) causing the holding means to be loaded on the recording and/or reproducing means by a movement of the cam members in a third horizontal direction consecutive to the movement thereof in the second horizontal direction by the driving means.
Claim 8
Dependent Claim
54 words
Recording and/or reproducing apparatus for a magneto-optical recording medium according to claim 7, wherein the magnetic head (143) is lowered by a further horizontal movement by the driving means of the pair of cam members (27,28) after loading of the holding means in the recording and/or reproducing means by the pair of cam members.
Claim 9
Dependent Claim
75 words
Recording and/or reproducing apparatus for a magneto- optical recording medium according to claim 7, wherein the casing (1) has a lid (4) rotatable mounted relative thereto and to be opened by the disc cartridge (201,221) inserted via the opening (3) to open and close the opening (3), the driving means (185) having a cam gear (97) formed with a cam (98) and an arm (104) engaged with the cam (98) to rotate the lid (4).
Claim 10
Dependent Claim
83 words
Recording and/or reproducing apparatus for a magneto- optical recording medium according to claim 7, including a slide member (31) slidable mounted on the holding means, a first lever (62) pivotally mounted on the slide member (31) and to be rotated by the inserted disc cartridge (201,221), and a second lever (68) engaged with the first lever (62) pivotally mounted on the slide member, the second lever inhibiting the movement of the slide member when the second lever is engaged with the first lever.
Claim 11
Dependent Claim
93 words
Recording and/or reproducing apparatus for a magneto-optical recording medium according to claim 7, including a chassis (12) mounting the recording and/or reproducing means and the driving means (185) thereon and housed within the casing (1) with a pre-set distance from the inner wall of the casing, the chassis having a cam groove (81 to 84) cooperating with the cam grooves (23,24) in the cam members (27,28) to cause the holding means (30) to be moved in the horizontal direction and in the vertical direction in continuation of the movement in the horizontal direction.
Claim 12
Dependent Claim
52 words
Recording and/or reproducing apparatus for a magneto-optical recording medium according to claim 7, including a loading member (29) engaged in the cam grooves (73,74) in the cam members (27,28) and in the cam groove in the chassis to cause the holding means (30) to be moved in the horizontal and vertical directions.
Claim 13
Dependent Claim
213 words
Recording and/or reproducing apparatus for a recording disc (203,223) comprising: a casing (1) having a first chassis (26) fixedly housed therein; a second chassis (12) floatingly supported relative to the chassis (26) via a damper (19) and housed within the casing; a disc loading unit and a disc drive unit arranged on the second chassis (12); a disc inserting slit (3) formed in an outer wall of the casing (1), the recording medium (203,223) being inserted via the slit (3) so as to be loaded on the disc drive unit; a lid (4) pivotally supported by the casing (1) to open and close the disc inserting slit (3), a lid opening and closing lever (162) movably supported relative to the casing (1) and pivotally movable to open and close the lid (4); and an interlocked lever (104) movably supported by the second chassis (12), the interlocked lever (104) being moved in operative association with the loading operation by the disc loading unit, the interlocked lever when moved causing the lid opening and closing lever (162) to be moved, and the interlocked lever (104) maintaining the lid in the opened state via the lid opening and closing lever (162) during a pre-set interval in the course of the loading by the disc loading unit.
Claim 14
Dependent Claim
268 words
A loading unit for a disc cartridge (201,221) comprising: a cartridge holder (20) movably supported relative to a chassis (12), the cartridge holder holding the disc cartridge inserted therein; movement producing means (185) to cause the cartridge holder (30) to be moved to recording and/or reproducing means to record and/or reproduce information signals on or from a disc-shaped recording medium (203,223) housed within the disc cartridge (201,221); insertion detection means (62) movably mounted on the cartridge holder, the insertion detection means being moved by being thrust by the disc cartridge inserted into the cartridge holder (30); and stop means (68) movably mounted on the cartridge holder, the stop means having a retention member (169) retaining the chassis (12) and an engaging protrusion (70) engaged with the disc cartridge, the stop means when the disc cartridge is not inserted into the cartridge holder and the retention member is retained by the chassis being prevented by the insertion detection means from being moved in a direction of releasing retention of the retention means by the chassis, the stop means (68) when the disc cartridge is inserted into the cartridge holder and the insertion detection means (62) is moved being released from inhibition of movement by the insertion detection means, the stop means being slidingly contacted with the chassis in conjunction with movement towards the recording and/or reproducing means of the cartridge holder by the movement producing means, and the stop means being moved in a direction of releasing the retention of the retention means by the chassis to engage the engaging protrusion with an engaging recess in the disc cartridge.
Claim 15
Dependent Claim
98 words
A loading unit for a disc cartridge according to claim 14, wherein the cartridge holder has a mistaken insertion inhibiting protrusion (180) to intrude into a mistaken insertion inhibiting groove (220) in the disc cartridge, the mistaken insertion inhibiting protrusion (180) being abutted on the disc cartridge to inhibit insertion of the disc cartridge into the cartridge holder to inhibit movement of the insertion detection means by the disc cartridge when the disc cartridge is inserted into the cartridge holder so that the mistaken insertion inhibiting protrusion (180) is not intruded into the mistaken insertion inhibiting groove (220).
References Cited (Backward Citations)
No citation records indexed.
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