JPH0352895U

JPH0352895U -

Info

Publication number: JPH0352895U
Application number: JP11400789U
Authority: JP
Priority date: 1989-09-28
Filing date: 1989-09-28
Publication date: 1991-05-22

Description

[Brief explanation of drawings]

図１は実施例１、図１ａは、実施例１の粘弾性
体形状、図２は実施例２を表す。図３は従来例１
、図４は従来例２を表す。図５ａは振動対策なし
、図５ｂは従来例１、図５ｃは従来例２の振動レ
ベルを示すグラフである。図６ａは図５ａと同じ
振動対策なし、ｂは実施例１、ｃは実施例２の振
動レベルを示すグラフである。１……粘弾性体１、４……回転軸、１０……ス
テータ、１′……粘弾性体２、６……固定ドラム
、１１……回転ヘツド機構、２……磁気ヘツド、
８……モータ、３……回転ドラム、９……ロータ
。 FIG. 1 shows Example 1, FIG. 1a shows the shape of the viscoelastic body of Example 1, and FIG. 2 shows Example 2. Figure 3 shows conventional example 1
, FIG. 4 shows conventional example 2. FIG. 5a is a graph showing vibration levels without vibration countermeasures, FIG. 5b is a graph showing the vibration level of conventional example 1, and FIG. 5c is a graph showing the vibration level of conventional example 2. FIG. 6a is a graph showing the vibration level without the same vibration countermeasure as in FIG. 5a, b is a graph showing the vibration level of Example 1, and c is a graph showing the vibration level of Example 2. DESCRIPTION OF SYMBOLS 1... Viscoelastic body 1, 4... Rotating shaft, 10... Stator, 1'... Viscoelastic body 2, 6... Fixed drum, 11... Rotating head mechanism, 2... Magnetic head,
8...Motor, 3...Rotating drum, 9...Rotor.

Claims

[Claims for Utility Model Registration] (1) A head that contacts and slides on a running tape to record information on the tape and read the information recorded on the tape, and a rotating drum to which this head is attached. and a rotor directly connected to the rotary drum via a rotation shaft, and a rotary head mechanism that is rotationally driven by a motor consisting of the rotor and the stator, the rotary head mechanism having a viscoelastic body attached to the outer surface of the rotor. . (2) The rotating head mechanism according to claim 1, wherein the viscoelastic body is a plurality of types of viscoelastic bodies. (3) The rotating head mechanism according to Claims 1 and 2, wherein the viscoelastic body is an ether polyurethane. (4) The rotating head mechanism according to claim 1, wherein the viscoelastic body includes a plurality of types of viscoelastic bodies stacked in the direction of the rotation axis of the rotary drum. (5) A magnetic head for recording and reproducing video signals and/or audio signals and/or control signals on a magnetic tape, a rotating head to which this head is attached and rotating around a certain axis, and an axis around which the rotating head rotates. 6. The rotary head mechanism according to claim 5, comprising: a motor attached to the rotary head; and a viscoelastic body attached to a rotating portion of the motor. (6) The rotating head mechanism according to claim 5, wherein the viscoelastic body is comprised of a plurality of types of viscoelastic bodies. (7) The rotating head mechanism according to claim 5, wherein the viscoelastic body is comprised of a plurality of types of viscoelastic bodies having different hardnesses. (8) The rotary head mechanism according to claim 5, 6, or 7, wherein the viscoelastic body includes a plurality of types of viscoelastic bodies stacked in the direction of the rotation axis of the rotary drum. (9) A magnetic head that records and reproduces signals on a magnetic recording member; A rotating means that supports this magnetic head and rotates about a certain axis; and a fixing device that supports this rotating means so that it can rotate about said certain axis. and a rotating head mechanism including a plurality of types of viscoelastic bodies attached to the rotating means.