Rotating drum assembly

Abstract

Abstract PURPOSE:To discharge high pressure air from the surface of a rotating drum freely engaged with a cylinder, to suppress the friction quantity of a head, and to improve the picture quality and the sound quality by providing a fixed cylinder without a lead surface at the rotating drum assembly and arranging a compressing device in the cylinder. CONSTITUTION:A rotating drum assembly is composed of a rotating drum 9 and a fixed cylinder 14, and on the outer circumference of the cylinder 14, through holes 23-25 of the fixed cylinder 14 to support the edge surface of a magnetic tape 1 are provided. The drum 9 is supported freely rotatably by a shaft 8 at the cylinder 14 and on the outer circumference of the drum 9, through holes 11-13 of the rotating drum are formed. In the cylinder 14, a compressing device 14 is arranged, the high pressure air is discharged to the outer circumference by the rotation of the drum 9 from the device 14, the friction quantity of the head is suppressed and the picture quality and the sound quality are improved. The through holes 11-13 and 23-25 of the drum 9 and the cylinder 14 are arranged to the corresponding height and the through holes 11-13 record the prescribed signal pattern on the tape 1.

Inventors

• 👤 Toyofumi Tani
• 👤 谷　豊文
• 👤 Hiroshi Miwa
• 👤 博 三輪

Bibliographic Details