JPH022395U - - Google Patents

Info

Publication number
JPH022395U
JPH022395U JP7852688U JP7852688U JPH022395U JP H022395 U JPH022395 U JP H022395U JP 7852688 U JP7852688 U JP 7852688U JP 7852688 U JP7852688 U JP 7852688U JP H022395 U JPH022395 U JP H022395U
Authority
JP
Japan
Prior art keywords
brake
relay
energized
power source
hoisting
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
Application number
JP7852688U
Other languages
Japanese (ja)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP7852688U priority Critical patent/JPH022395U/ja
Publication of JPH022395U publication Critical patent/JPH022395U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Control And Safety Of Cranes (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

図面は本考案の一実施例を示す回路図である。 ＩＭ…巻上電動機、ＭＢ…巻上ブレーキコイル
、Ｅ…バツテリー、ＢＳ…押釦スイツチブロツク
、ＴＦ…トランス、Ｒｆ…整流器、Ｒ…非常用リ
レーのコイル、Ｒ１…非常ブレーキ解放用リレー
のコイル、Ｒａ，Ｒ１ａ…常開接点、Ｒｂ…常閉
接点、Ｓ３…非常用押釦スイツチ、Ｓ４…非常ブ
レーキ解放用押釦スイツチ。 The drawing is a circuit diagram showing an embodiment of the present invention. IM...Hoisting motor, MB...Hoisting brake coil, E...Battery, BS...Push button switch block, TF...Transformer, Rf...Rectifier, R...Emergency relay coil, R1 ...Emergency brake release relay coil, Ra, R 1 a...Normally open contact, Rb...Normally closed contact, S3 ...Emergency push button switch, S4 ...Emergency brake release push button switch.

Claims (1)

【実用新案登録請求の範囲】 主電源から供給される電流により巻上げ又は巻
下げ運転が行われる巻上電動機と、励磁電流供給
時に前記巻上電動機のブレーキを解放させるブレ
ーキコイルとを備えたブレーキ解放装置において
、 前記主電源の停電時に前記ブレーキコイルに励
磁電流を供給するためのバツテリーと、 非常用ブレーキスイツチのオン操作により励磁
されるリレーと、 前記主電源とブレーキコイルを結ぶ電路に介挿
され、前記リレーが励磁されたとき開放状態とな
る常閉接点と、 前記バツテリーとブレーキコイルを結ぶ電路に
介挿され、前記リレーが励磁されたとき閉成状態
となる常開接点とを備えたことを特徴とするブレ
ーキ解放装置。[Claims for Utility Model Registration] A brake release comprising a hoisting motor that performs hoisting or hoisting operation using a current supplied from a main power source, and a brake coil that releases the brake of the hoisting motor when an excitation current is supplied. The device includes: a battery for supplying excitation current to the brake coil in the event of a power outage of the main power source; a relay that is energized by turning on the emergency brake switch; and a relay that is inserted in an electric line connecting the main power source and the brake coil. , a normally closed contact that is in an open state when the relay is energized, and a normally open contact that is inserted in an electric circuit connecting the battery and the brake coil and that is in a closed state when the relay is energized. A brake release device featuring:
JP7852688U 1988-06-14 1988-06-14 Pending JPH022395U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7852688U JPH022395U (en) 1988-06-14 1988-06-14

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7852688U JPH022395U (en) 1988-06-14 1988-06-14

Publications (1)

Publication Number Publication Date
JPH022395U true JPH022395U (en) 1990-01-09

Family

ID=31303445

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7852688U Pending JPH022395U (en) 1988-06-14 1988-06-14

Country Status (1)

Country Link
JP (1) JPH022395U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001341977A (en) * 2000-06-01 2001-12-11 Ishikawajima Harima Heavy Ind Co Ltd Hoist crane
JP2009183124A (en) * 2008-02-01 2009-08-13 Hitachi Industrial Equipment Systems Co Ltd Inverter device and electric winding machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001341977A (en) * 2000-06-01 2001-12-11 Ishikawajima Harima Heavy Ind Co Ltd Hoist crane
JP2009183124A (en) * 2008-02-01 2009-08-13 Hitachi Industrial Equipment Systems Co Ltd Inverter device and electric winding machine

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