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US 3,942,698 AGranted
Helical-scan video tape recorder having a tape-loosening mechanism
AssigneeNippon Electric Co., Ltd.
InventorsMasataka Hattori, Hisao Toda
Life of this patent
Estimating the term…
Abstract
An apparatus for scanning a magnetic video tape includes a drum and a rotatable magnetic head. A freely rotatable roller and a loosening mechanism are positioned on opposite sides of the tape. When the tape stops, the loosening mechanism is driven toward the roller and thus engages the tape between the loosening mechanism and the roller. Rotation of the loosening mechanism then loosens the tape.
Claims7
An apparatus for scanning a magnetic video tape including a drum about which the tape is wound in a helical manner and a rotary magnetic head, wherein the improvement comprises:
- a freely rotatable roller disposed along the path of the magnetic tape;
- a tape loosening means disposed on the side of the tape opposite the roller for movement toward the roller whereby the tape is engaged between the loosening means and the roller;
- and
- drive means for moving the loosening means toward the roller and rotating the loosening means so as to loosen the tape in response to an interruption of tape movement.
1 more element
Dependencies are inferred from the claim text.