Pioneer Corporation

Yukinari Makisaka

Youichi Konno

Hitoshi Ueno

Kenjirou Ooizumi

Kenji Kikuchi

Eiji Hoshinaka

A switch () is adapted to be On when a contact point () is at a position to be in contact with a cam surface () and Off when the contact point () is at a position corresponding to a non-cam surface (). In the vicinity of the non-cam surface () of the cam surface (), a rib () is provided which changes a direction of the contact point () when reciprocation of the cam member () is changed. Accordingly, even when the switch () comes into contact with the cam member () moving in a different direction, the direction of the contact point () is changed so as to be the same. Hence, the switch () is prevented from being affected by a hysteresis caused by difference in directions of the contact point ().

Switch mechanism and disk device

The disk carrying apparatus includes a lifting portion which carries a disk onto a turntable, a chuck which holds the carried disk on the turntable, and a third switch which detects an intermediate position between a holding operation start position where the chuck starts a disk holding operation and a holding operation end position where the chuck finishes the disk holding operation. After completion of an initial disk holding operation, the chuck returns to the intermediate position detected by the third switch and retries the disk holding operation.

Disk carrying apparatus

There is provided a slot-in type reproducing/recording apparatus in which a disk ,when ejected, stops at a predetermined position in front of the apparatus to be easily handled. A stop mechanism () includes an engagement pin () formed on an eject arm () and biased toward a selector plate () and the engagement recesses (E,F) formed on the selector plate () and hold the engagement pin () in a manner that the disk is held by main arms and the eject arm (). The selector plate () can move in a direction orthogonal to a disk-eject direction as the main arms open or close. Upon the ejection of the disk, the stop mechanism () stops the disk at a predetermined position in front of the apparatus so as to prevent the disk from jumping out from a slot (A).

Slot-in type reproducing/recording apparatus

There is provided a reproducing/recording apparatus that can reduce a load required for pushing in a case to activate a motor of a loading mechanism. The recording/reproducing apparatus includes a gear mechanism coupled with the motor, and a rack () coupled with the gear mechanism and provided along an advancement and retraction direction of a base plate (), i.e., the case. Between the rack () and the base plate (), grooves (A) are formed for allowing a relative movement of the rack () and the base plate () along the advancement and retraction direction. Between the base plate () and the gear mechanism, a start cam mechanism is formed for starting rotation of the motor when the base plate () advances to a predetermined position. With such configuration, the base plate () can advance within the length of the grooves (A) without much load when a user pushes in the base plate (), therefore the disk D can be easily loaded.

Growing community of inventors

Tokorozawa, Japan

Yukinari Makisaka