Mitsubishi Electric Corporation

Mitsubishi Denki Kabushiki Kaisha

Yoshifumi Awakura

Tatsunori Fujiwara

Takaharu Eguchi

Akihito Onishi

Akinori Tsukaguchi

Daisuke Morimoto

Kazutoshi Taniguchi

Hideaki Kikuchi

A disc device includes a first cam gearhaving a cam groove, and engaged with and released from one gear of a power transmission system, and a second cam gearhaving a hole portioncorresponding to the cam groove, laid on the first cam gearand rotatably supported relative to the first cam gear, and engaged with and released from one gear of the power transmission system.

Disc device

A disc device has a sliding memberthat operates in response to a rotational force of the first partially toothless gearto disconnect a power transmission system from a disc conveying roller, and a protruding portiondisposed on this sliding memberis brought into contact with a rising portionof a rotary leverat an initial position of the sliding member before the sliding member starts operating, so as to restrict a rotation of the rotary leverin such a way that a pindoes not come into contact with a wall surface of a cam groove

A disc apparatus includes: a playback unitprovided with a conveying rollerand a disc guideto be vertically movable with respect to an apparatus main body; a moving means for moving downward the conveying roller and the disc guide in amounts of travel which are different from each other to avoid contact of the roller and the guide with a discwith interlocking an operation that the loaded discis moved downward to be mounted on a turntable; and a disc-guide-cum-position-regulating memberattached to the apparatus main body corresponding to a disc loading port such that the playback unit is restrained from moving to the disc loading port side.

Disc apparatus

A disk reproducing apparatus includes a disk detecting lever that has a switch abutting section and a light intercepting section and rotates according to the loading operation and the ejecting operation of a disk caused by abutment of the outer edge of the disk against a detecting pin; a single switch that is switched by the switch abutting section and thereby detects the loading start position, and also the inserting position of the disk; and a single photosensor that detects the inserting position of the disk with keeping the light intercepting condition thereof by either the light intercepting section or the disk and also detects the ejection end position when the light intercepting condition brought about by the disk has been released and then the light intercepting condition brought about by the light intercepting section is released.

Disk reproducing apparatus implementing detection of disk insertion condition for loading and ejection operations

A lever having an end rotatably supported by a rack is disposed, a long groove is formed in either another end of the lever or a base chassis and extends in a direction approximately perpendicular to a direction of transporting an optical pickup, a fulcrum member is disposed in either the base chassis or the other end and is rotatably and slidably engaged with the long groove, and to slide along the long groove when the optical pickup is transported, and a spring that always exerts a pushing force in a direction of rotating the lever with the other end being a fulcrum and with the end being a point of action to exert a pushing force of bringing the rack into contact a gear series upon the rack is disposed between a predetermined position of the base chassis and an intermediate position of the lever.

Optical disc device

A snap fit mechanism has an elastic tongue provided on a base of the mechanism. On the tip of the tongue is provided an engaging claw that has an engaging inclined face. A far end of the engaging inclined face from the base is arranged so as to be located between the outside face of the elastic tongue and the centerline C in a longitudinal direction of the elastic tongue. Further, on the tip of the elastic tongue is provided an engagement-maintaining inclined face which gives an outward load to the elastic tongue on receiving an accidental load thereon so as to reduce the inward elastic deformation of the elastic tongue, thereby preventing the accidental release of the engagement of the tongue.

Growing community of inventors

Tokyo, Japan

Yoshifumi Awakura