Abstract: A portable electronic device in which a rotary key reliably operates is provided. The portable electronic device includes: a circuit board; a first cover disposed above the circuit board; a second cover disposed above the first cover; a gap disposed between the first cover and the second cover; holes provided in the first cover and the second cover; and a rotary key fixed to the circuit board and provided in the holes.

Abstract: An optical disk device has superior vibration characteristics by preventing vibration of a rotating arm. A desired optical disk is selected from the plurality of optical disks which are stacked and accommodated. The rotating arm is rotated to a working space provided for the desired optical disk. A turntable is positioned, and an optical head is moved to perform the recording/reproduction. Because the tip part of the rotating arm of a cantilever structure is supported by a support member extending along the axial line CL of the optical disk, it has a structure supported by both ends. Thus, the vibration of the rotating arm can be prevented. Because the support member extends along the axial line CL of the optical disk, it passes through a holding hole at the center of the optical disk and a notch provided at the center of a tray, without interference on its way, thereby supporting the rotating arm.

Abstract: A disc device is capable of suppressing movement of discs remaining on standby. Discs are moved upward and downward, thereby providing an operation space S at a lower side of the desired disc, and a pivotal arm is located in a predetermined position, and thereafter the desired disc is set on the pivotal arm, and recording/reproduction is effected. At this time, the standby discs disposed at the lower side of the desired disc are disposed below the operation space (S), and are fixed by pressing pressing members of disc fixing portions against outer peripheral surfaces thereof.

Abstract: To provide an optical disc device in which the number of parts is small, and quietness can be secured with a simple mechanism. The optical disc device includes a main body having a disc insertion/removal port, and a conveying roller for conveying a disc between the disc insertion/removal port and a disc receiving position in the main body, and also includes a swinging lever which is pivotally supported at its proximal end on a supporting shaft within the main body, and has a disc arrival switch fixed thereto, and a detection lever which is pivotally supported at its proximal end on the supporting shaft, and contacts an outer periphery of the disc (which is to be received in the disc receiving position) at its distal end to operate the disc arrival switch, and when the disc is to be inserted into the disc receiving position, the detection lever is projected into the disc receiving position.

Abstract: An optical disc device capable of sensing exactly whether or not a disc is present is provided. In an optical disc device includes a main body having a disc slot, and a carrying roller for carrying a disc between the disc slot and a disc loading position of the main body, a swinging lever whose base end is supported turnably in an inside of the main body by a supporting shaft and to which a disc arriving switch is fixed, and a sensing lever whose base end is supported turnably by the supporting shaft and whose top end contacts the outer periphery of the disc, which is loaded in the disc loading position, to operate the disc arriving switch are provided.

Abstract: To provide an optical disc device in which an identification and a disc ejection control processing for an optical disc with a high transmitting property and an 8-cm optical disc attached to an adapter can be effected easily and positively. There are provided a body capable of receiving an optical disc therein, an insertion/ejection port capable of insertion and ejection of the optical disc relative to the interior of the body, and rollers which are provided within the body, and rotate, while holding the optical disc therebetween, so as to convey the optical disc into the interior of the body. A mechanical detector, having a contact element for contact with at least one of obverse and reverse surfaces of the optical disc to detect the optical disc, is provided within the body so that an identification and a disc ejection control processing for optical discs can be effected easily and positively.

Abstract: An optical disc device and a disc changer drive capable of achieving a reduction in cost and number of articles and a reduction in size of the disc drive with a simple configuration rather than the prior art and also carrying out a stable playing/writing operation are provided. An optical disc device includes a playing chassis which is supported turnably on a main body of the disc drive and on which a turntable is installed, a substantially Y-shaped cam groove formed on the playing chassis, a driving lever on which a substantially T-shaped cam groove is formed and which transmits a power to a holding portion of the disc, and a turning lever supported turnably on the main body and engaged with the playing chassis and the cam groove of the driving lever via a driving shaft, wherein a turning of the turning lever is followed by a turning of the playing chassis and a movement of the driving lever that follows the turning of the playing chassis to hold a disc as a series of operations.

Abstract: To provide an optical disc device in which an identification and a disc ejection control processing for an optical disc with a high transmitting property and an 8-cm optical disc attached to an adapter can be effected easily and positively. There are provided a body capable of receiving an optical disc therein, an insertion/ejection port capable of insertion and ejection of the optical disc relative to the interior of the body, and rollers which are provided within the body, and rotate, while holding the optical disc therebetween, so as to convey the optical disc into the interior of the body. A mechanical detector, having a contact element for contact with at least one of obverse and reverse surfaces of the optical disc to detect the optical disc, is provided within the body so that an identification and a disc ejection control processing for optical discs can be effected easily and positively.

Abstract: A disc device is capable of suppressing movement of discs remaining on standby. Discs are moved upward and downward, thereby providing an operation space S at a lower side of the desired disc, and a pivotal arm is located in a predetermined position, and thereafter the desired disc is set on the pivotal arm, and recording/reproduction is effected. At this time, the standby discs disposed at the lower side of the desired disc are disposed below the operation space (S), and are fixed by pressing pressing members of disc fixing portions against outer peripheral surfaces thereof.

Abstract: An optical disc device and a disc changer drive capable of achieving a reduction in cost and number of articles and a reduction in size of the disc drive with a simple configuration rather than the prior art and also carrying out a stable playing/writing operation are provided. An optical disc device includes a playing chassis which is supported turnably on a main body of the disc drive and on which a turntable is installed, a substantially Y-shaped cam groove formed on the playing chassis, a driving lever on which a substantially T-shaped cam groove is formed and which transmits a power to a holding portion of the disc, and a turning lever supported turnably on the main body and engaged with the playing chassis and the cam groove of the driving lever via a driving shaft, wherein a turning of the turning lever is followed by a turning of the playing chassis and a movement of the driving lever that follows the turning of the playing chassis to hold a disc as a series of operations.

Abstract: An optical disc device capable of sensing exactly whether or not a disc is present is provided. In an optical disc device includes a main body having a disc slot, and a carrying roller for carrying a disc between the disc slot and a disc loading position of the main body, a swinging lever whose base end is supported turnably in an inside of the main body by a supporting shaft and to which a disc arriving switch is fixed, and a sensing lever whose base end is supported turnably by the supporting shaft and whose top end contacts the outer periphery of the disc, which is loaded in the disc loading position, to operate the disc arriving switch are provided.

Abstract: To provide an optical disc device in which the number of parts is small, and quietness can be secured with a simple mechanism. The optical disc device includes a main body having a disc insertion/removal port, and a conveying roller for conveying a disc between the disc insertion/removal port and a disc receiving position in the main body, and also includes a swinging lever which is pivotally supported at its proximal end on a supporting shaft within the main body, and has a disc arrival switch fixed thereto, and a detection lever which is pivotally supported at its proximal end on the supporting shaft, and contacts an outer periphery of the disc (which is to be received in the disc receiving position) at its distal end to operate the disc arrival switch, and when the disc is to be inserted into the disc receiving position, the detection lever is projected into the disc receiving position.

Abstract: When storage of an optical disc in which information has been recorded is started, a pair of rollers rotate while holding the optical disc inserted through an insertion/ejection slot of a body of an optical disc device, so that the rollers convey the optical disc to the inside of the body. On this occasion, circumferential edge sensing units provided in the inside of the body sense a circumferential edge of the inserted optical disc continuously to thereby sense the outer diameter, shape and insertion state of the inserted optical disc. The optical disc is ejected when decision is made that there is abnormality.

Abstract: An optical disk device capable of securing a rigidity of a tray that holds an optical disk is provided. When an optical disk is put into trays stacked in a main body, a holding portion provided to the tray holds the optical disk. In this case, since the holding portion holds the optical disk from the label face side of the optical disk, a recording face located on the opposite side to the label face can be opened without provision of a notch in the tray. Accordingly, a rigidity of the tray can be secured.

Abstract: There is provided an optical disk device that is capable of obtaining a required optical disk holding force uniformly and sufficiently. When information held and recorded on an optical disk is reproduced, a recording face of the optical disk is loaded on a loading portion of a clamping mechanism, then a projection portion is passed through a hollow portion of the optical disk to the label face side, and then the optical disk is held by chuck claws protruded from the projection portion. At this time, the chuck claws are turned around a supporting shaft provided along a tangential direction of the projection portion respectively to clamp the optical disk, but base end portions of the chuck claws are pushed by pushing portions provided to pushing members to have an elasticity and are turned.

Abstract: An optical disk device has superior vibration characteristics by preventing vibration of a rotating arm. A desired optical disk is selected from the plurality of optical disks which are stacked and accommodated. The rotating arm is rotated to a working space provided for the desired optical disk. A turntable is positioned, and an optical head is moved to perform the recording/reproduction. Because the tip part of the rotating arm of a cantilever structure is supported by a support member extending along the axial line CL of the optical disk, it has a structure supported by both ends. Thus, the vibration of the rotating arm can be prevented. Because the support member extends along the axial line CL of the optical disk, it passes through a holding hole at the center of the optical disk and a notch provided at the center of a tray, without interference on its way, thereby supporting the rotating arm.

Abstract: In a disk holding apparatus including a tray for mounting a disk D, a turn table rotated by a rotation driver, a disk hole inserting portion for taking out the disk from the tray to mount on the turn table, and a projected portion for fixing the disk D on the turn table, the disk hole inserting portion is inwardly inserted to be able to move up and down in a direction orthogonal to a face of mounting the disk D at inside of the turn table, and an inner portion of the disk hole inserting portion is contained with a screw member for converting a rotational force from the rotation driver to a force of vertically moving up and down the disk hole inserting portion.

Abstract: The disc apparatus according to the present invention comprises a base member (130), a chassis (140) pivotable with respect to the base member (130), a pickup unit (160) movably supported by the chassis (140) to be accessible to a disc, and a guide shaft (180) contactable with the pickup unit (160) to guide the pickup unit (160), and in which the guide unit (180) includes an end portion (180a) selectively assuming two operation positions including a contact position in which the end portion (180a) is brought into contact with the chassis (140) and a noncontact position in which the end portion (180a) is brought out of contact from the chassis (140), and the guide unit (180) is pivotable around an axis (181) extending in a direction (130a) substantially perpendicular to a moving direction (160a) in which the pickup unit (160) is movable with respect to the chassis (140).

Abstract: The disc apparatus according to the present invention comprises a base member (130), a chassis (140) pivotable with respect to the base member (130), a pickup unit (160) movably supported by the chassis (140) to be accessible to a disc, and a guide shaft (180) contactable with the pickup unit (160) to guide the pickup unit (160), and in which the guide unit (180) includes an end portion (180a) selectively assuming two operation positions including a contact position in which the end portion (180a) is brought into contact with the chassis (140) and a noncontact position in which the end portion (180a) is brought out of contact from the chassis (140), and the guide unit (180) is pivotable around an axis (181) extending in a direction (130a) substantially perpendicular to a moving direction (160a) in which the pickup unit (160) is movable with respect to the chassis (140).

Abstract: Herein disclosed is a disc drive apparatus for driving an optical disc having a central portion formed with a central hole, comprising: a frame member, a disc retaining member rotatably supported by the frame member, a cam member supported by the disc retaining member and rockable with respect to the disc retaining member, a plurality of disc holding members each supported by the disc retaining member and operatively coupled with the cam member, each of the disc holding members being movable with respect to the disc retaining member to assume two different operation positions including a disc holding position in which each of the disc holding members is held in contact with the central portion of the optical disc, and a disc releasing position in which each of the disc holding members is held out of contact with the central portion of the optical disc, and a resilient member intervening between the disc retaining member and each of the disc holding members to have each of the disc holding members resiliently