Patent ID: 6286775
Filing Date: 2001-09-11
Classification: G11B

Abstract:
A magnetic recording/reproduction apparatus having a first state in which a tape cassette is placed on a chassis by a user and a second state in which after the placing of the tape cassette a magnetic tape is drawn out from the tape cassette and allowed to pass around a rotary head cylinder, having a rotary head, for a predetermined arc to record/reproduce information on/from the magnetic tape, the second state including a PLAY mode, a REV mode and a STOP mode, the apparatus comprising:a reel base rotatably mounted on the chassis via a shaft and engaging with a reel which holds the magnetic tape wound thereon in the tape cassette;a tension post allowing the magnetic tape to pass around a periphery thereof in the second state; anda tension arm supporting the tension post at a fixed position of the tension arm, the tension arm being swingably mounted on the chassis,the reel base including a drum portion rotating integrally with the reel base,wherein the magnetic recording/reproduction apparatus further comprises:a tension band having a center portion passing around the drum portion and one end swingably held by the tension around the arm; anda tension band regulating arm movably supported by the chassis, the tension band regulating arm holding the other end of the tension band,when the magnetic tape runs in a forward direction in the PLAY mode, the tension band is tensioned around the drum portion for a predetermined arc so that the tension post can control the tension of the magnetic tape, and the tension arm is positioned at a first position, andwhen the magnetic tape runs in a backward direction in the REV mode or when the magnetic tape does not run in the STOP mode, the tension band regulating arm moves to a position at which the tension band is loosened and the tension arm is fixed at the first position as in the PLAY mode.