The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 23, 1991
Filed:
Feb. 15, 1990
Atsushi Kurosawa, Kawagoe, JP;
Toshiyuki Kimoto, Kawagoe, JP;
Sei Onishi, Kawagoe, JP;
Kiyohito Kajihara, Kawagoe, JP;
Pioneer Electronic Corporation, Tokyo, JP;
Abstract
Compensating arrangements compensate for variations in load which a disk magazine places on a drive motor. In a first arrangement, a cam slot of a predetermined spiral configuration receives driving force from a drive motor and translates the same to: an end-range force from an initial portion of the cam slot which causes the selected tray to rotate at a first speed; an intermediate-range force from a middle portion which causes the selected tray to rotate at a second speed which is higher than the first speed; and, an end-range force from a final portion which causes the selected tray portion to rotate at a third speed which is lower than the second speed. In a second arrangement wherein a level of the disk magazine placeable in either a horizontal or vertical posture is adjusted with respect to the inlet of an information reproducing section, where there is an adjustment of a level position of the disk magazine in a same direction as gravitational force, a spring force from the spring attached at an oblique angle between the disk magazine and a frame portion of the disk player, offsets a portion of the load imposed on the drive motor by gravitational force on the disk magazine; and, when in an opposite horizontal or vertical posture, a spring force from the spring adds to a load imposed on the drive motor.