Patent Number: 6,885,018

Title: Reel rotation and optical detection mechanism for video cassette deck

Abstract: An object of this invention is to reduce the manufacturing cost by simplifying a reel rotation detecting mechanism in a video cassette deck. A light emitting element and a light receiving element are engaged on a main substrate provide under a deck chassis. On the deck chassis is mounted a light guiding member that includes a pillar portion extending through the deck chassis and a branch portion extending sideways from the pillar portion. In order to detect the leading ends and trailing ends of the magnetic tape, the pillar portion guides the light coming from the light emitting element into the cassette arranged on the deck. The branch portion, above the deck chassis, guides one portion of the light incident to the pillar portion to the reel on the deck chassis. The rotation of the reel is detected by receiving the light by the light receiving element on the main substrate through the opening point provided in the reel and the opening provided in the deck chassis.

Inventors: Maeda; Osamu (Osaka, JP)

Assignee: Funai Electric Co., Ltd.

International Classification: G11B 15/05 (20060101); G11B 15/08 (20060101); G01N 021/86 ()

Expiration Date: 4/26/02017