JPH0366043U - - Google Patents
Info
- Publication number
- JPH0366043U JPH0366043U JP12820589U JP12820589U JPH0366043U JP H0366043 U JPH0366043 U JP H0366043U JP 12820589 U JP12820589 U JP 12820589U JP 12820589 U JP12820589 U JP 12820589U JP H0366043 U JPH0366043 U JP H0366043U
- Authority
- JP
- Japan
- Prior art keywords
- rotating body
- electric motor
- rotating
- energized
- brake mechanism
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010586 diagram Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
Description
第１図はこの考案の一実施例をＶＴＲのテープ
走行系に適用した概略構成図、第２図はこの考案
の他の実施例をテープ走行系に適用した概略構成
図である。
１１…サプライリールデイスク（回転体）、１
２…テイクアツプリールデイスク（回転体）、１
３…モータ（電動機）、１４…メインブレーキ機
構、２３…回転センサ、２４…回転方向検出回路
、２６…モータ駆動回路、２８…ローデイングブ
レーキ機構。
FIG. 1 is a schematic diagram of an embodiment of this invention applied to a tape running system of a VTR, and FIG. 2 is a schematic diagram of another embodiment of this invention applied to a tape running system. 11...Supply reel disk (rotating body), 1
2...Take-up reel disk (rotating body), 1
3...Motor (electric motor), 14...Main brake mechanism, 23...Rotation sensor, 24...Rotation direction detection circuit, 26...Motor drive circuit, 28...Loading brake mechanism.
Claims (1)
、この電動機の非通電時に前記回転体を拘束する
ブレーキ機構とを有するブレーキ装置において、 前記ブレーキ機構の作動時に前記回転体の回転
の有無および回転方向を判別する回転方向判別手
段と、この回転方向判別手段により回転体が回転
していると判別された場合に前記電動機を通電し
て電動機に前記回転体の回転方向と逆方向に作用
するトルクを生じさせる制御手段とを設けたこと
を特徴とするブレーキ装置。[Claims for Utility Model Registration] A brake device including a rotating body, an electric motor that rotationally drives the rotating body, and a brake mechanism that restrains the rotating body when the electric motor is not energized, wherein the brake mechanism has the following features: a rotational direction determining means for determining whether or not the rotating body is rotating and the direction of rotation; and when the rotating direction determining means determines that the rotating body is rotating, the electric motor is energized to cause the electric motor to rotate the rotating body. 1. A brake device comprising: a control means for generating a torque acting in the opposite direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12820589U JPH0366043U (en) | 1989-10-31 | 1989-10-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12820589U JPH0366043U (en) | 1989-10-31 | 1989-10-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0366043U true JPH0366043U (en) | 1991-06-27 |
Family
ID=31675924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12820589U Pending JPH0366043U (en) | 1989-10-31 | 1989-10-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0366043U (en) |
-
1989
- 1989-10-31 JP JP12820589U patent/JPH0366043U/ja active Pending
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