JPH0345233U

JPH0345233U -

Info

Publication number: JPH0345233U
Application number: JP10292389U
Authority: JP
Priority date: 1989-08-31
Filing date: 1989-08-31
Publication date: 1991-04-25

Description

[Brief explanation of drawings]

第１図は本考案によるテープ走行装置のテープ
走行状態におけるリール台のブレーキ機構を示し
ている。第２図はテープ走行装置の電源が切れた
時に、ブレーキドラムが食い込み方向に回転して
いた場合のリール台のブレーキ動作を示しており
、第３図はブレーキドラムが逃げ方向に回転して
いた場合のリール台のブレーキ動作を示している
。１……ブレーキドラム、２……ブレーキバンド
、２ａ……ブレーキシユー、３……リリースアー
ム、４……リリースアームストツパー、７……ブ
レーキアーム、８……ブレーキアームストツパー
、１１……メインソレノイド、１２……サブアー
ム、１５……サブソレノイド、１６……遅延手段
。 FIG. 1 shows a brake mechanism of a reel stand in a tape running state of a tape running device according to the present invention. Figure 2 shows the braking operation of the reel stand when the brake drum was rotating in the biting direction when the power to the tape running device was turned off, and Figure 3 shows the braking operation of the reel stand when the brake drum was rotating in the escape direction. The brake operation of the reel stand is shown in the following example. 1... Brake drum, 2... Brake band, 2a... Brake shoe, 3... Release arm, 4... Release arm stopper, 7... Brake arm, 8... Brake arm stopper, 11... Main solenoid, 12... sub arm, 15... sub solenoid, 16... delay means.

Claims

[Scope of utility model registration request]

A tape running device equipped with a reel stand on which a tape reel is mounted, a brake drum provided coaxially with the reel stand, a brake band located on the outer periphery of the brake drum and applying a brake to the rotation of the brake drum, A release arm to which one end of a brake band is locked and rotatable around a rotation axis, a release arm stopper for limiting the rotational range of the release arm, and a release arm for pulling the release arm toward the release arm stopper. a tension spring that biases the brake band; a brake arm to which the other end of the brake band is locked and is rotatable about a rotating shaft; and a pull spring that biases the brake arm in a direction in which the brake band is tightened. a tension spring, a brake arm stopper that limits the rotation range of the brake arm, and a main solenoid that operates so that the brake arm rotates in a direction to loosen the brake band against the tension spring; a sub-arm that rotates about a rotation axis and can rotate the brake arm in a direction in which the brake band is loosened by contacting the brake arm; and a direction in which the sub-arm contacts the brake arm. a tension spring that biases the brake arm; a sub-solenoid that operates so that the sub-arm rotates in a direction away from the brake arm against the tension spring; and the main solenoid and the sub-solenoid are simultaneously in an open state. A tape running device comprising: a delay means for delaying the operation of the sub-arm relative to the operation of the brake arm when the sub-arm is reached.