US 5,206,771 AGranted

Tape drive mechanism

AssigneeKabushiki Kaisha Sankyo Seiki Seisakusho

InventorsDaiichirou Katou, Tamotsu Mitsuyasu, Kazuo Abe, Takuji Sekiguchi, Hitoshi Yanagisawa, Tsuneharu Hashizume, Toshihiko Okina, Mitsutaka Miyashita, Masaki Gotoh

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Abstract

A tape drive mechanism for a video tape recorder and an audio tape recorder. The tape drive mechanism automatically corrects the position of tape in the width-wise direction thereof without mechanically restricting the edge of tape. Sensors (8) and (8) on a tape path detect a dislocation of the tape (7) from a reference running position that may develop in the width-wise direction of the tape (7), a tape guide post (1) for attracting the tape (7) is moved in the width-wise direction of the tape, or inclination of a tape guide post (41) is changed to move the tape (7) in such width-wise direction by means of actuators (2), (42) and (62) that give corresponding displacement based on the values detected by the sensors (8) and (8), or the reel plate (57) is moved in the direction of width of tape to move the tape (7) together with the reel (24). The tape (7) having a small thickness is prevented against vertical movement on the tape path and is permitted to run stably without damaging the edges of the tape.

Claims5

Dependent claims

A tape drive mechanism comprising:

a sensor for detecting an amount of dislocation of said tape from a reference running position in a width-wise direction of said tape, and supplying a detection signal;
a supply reel base device including a supply reel base for supplying said tape;
a winding reel base device including a winding reel base for winding said tape being supplied from said supply reel base;
an actuator provided in either or both of said supply reel base device and said winding reel base device, said actuator acting in response to said detection signal being supplied from said sensor so as to move either or both of said supply and winding reel bases in the width-wise direction of said tape in accordance with said tape dislocation amount;
and
a means for causing either or both of said supply and winding reel bases to be rotated, said means being provided in either or both of said supply and winding reel bases,
wherein operation of said actuator and said means causes either or both of said supply and winding reel bases to be rotated, while being moved in said width-wise direction of said tape in case of said sensor detecting said tape dislocation amount, to thereby maintain said tape at a predetermined position.

4 more elements

Dependencies are inferred from the claim text.