Magnetic video recording and reproducing apparatus

Details Magnetic video recording and reproducing apparatus Magnetic video recording and reproducing apparatus

G - Physics

11

B

352/23.22

G11B 15/66 (2006.01) G11B 15/61 (2006.01) G11B 23/04 (2006.01)

Patent

CA 1068817

MAGNETIC VIDEO RECORDING AND REPRODUCING APPARATUS ABSTRACT OF THE INVENTION In a cassette casing having a supply reel, a take- up reel and a hollow cylindrical member, a magnetic tape is fed from the supply reel and, after having been spirally wound around the intermediate hollow cyndrical member, wound on the take-up reel. To this end, the hollow cylindrical member is formed with a spiral guide rib with a pitch substantially equal to the width of the magnetic tape and threadedly or screw- wisely received in an opening formed in the bottom plate of the cassette casing. When the cassette casing is placed in the position ready for operation within a video recording and re- producing apparatus, a rotatable magnetic head drum having a magnetic head is inserted into the cylindrical member. There- after, the cylindrical member is moved outwardly from the cassette casing by rotating it through a driving apparatus, whereby the magnetic tape wound around the cylindrical member is progressively transferred onto the head drum to the position for recording or reproducing. When the cassette casing is to be removed from the apparatus, the hollow cylindrical member is rotated in the reverse direction to be inserted into the casette casing by virtue of the threaded engagement with the opening formed in the bottom plate of the cassette casing. Then, the magnetic tape is transferred back to the cylindrical member from the magnetic head-drum.

253236

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