JPH0382391U - - Google Patents

Info

Publication number
JPH0382391U
JPH0382391U JP14198889U JP14198889U JPH0382391U JP H0382391 U JPH0382391 U JP H0382391U JP 14198889 U JP14198889 U JP 14198889U JP 14198889 U JP14198889 U JP 14198889U JP H0382391 U JPH0382391 U JP H0382391U
Authority
JP
Japan
Prior art keywords
switch
lowering
turned
hoisting
control circuit
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
JP14198889U
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 JP14198889U priority Critical patent/JPH0382391U/ja
Publication of JPH0382391U publication Critical patent/JPH0382391U/ja
Pending legal-status Critical Current

Links

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  • Control And Safety Of Cranes (AREA)

Description

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

第１図は本考案の第１の実施例を示す回路図、
第２図は第２の実施例を示す回路図、第３図は電
気ホイストを示す構成図、第４図は従来技術を示
す回路図である。 図面中、１…電気ホイスト、４…巻上モータ、
６…フツク、９…操作押釦、９ａ…上昇スイツチ
、９ｂ，９ｂ−１…下降スイツチ、１１…巻上ブ
レーキ、２０…押ボタンスイツチ、Ｓ…無負荷検
知接点である。 FIG. 1 is a circuit diagram showing a first embodiment of the present invention;
FIG. 2 is a circuit diagram showing a second embodiment, FIG. 3 is a configuration diagram showing an electric hoist, and FIG. 4 is a circuit diagram showing a conventional technique. In the drawing, 1... electric hoist, 4... hoisting motor,
6...Hook, 9...Operation push button, 9a...Up switch, 9b, 9b-1...Down switch, 11...Hoisting brake, 20...Push button switch, S...No load detection contact.

Claims (1)

【実用新案登録請求の範囲】 上昇スイツチが投入されると巻上モータを正転
させて巻き上げ動作をさせ、下降スイツチが投入
されると巻上モータを逆転させて巻き下げ動作を
させ、更に吊下負荷が無くなると下降スイツチが
投入されていても巻き下げ動作を停止させる電気
ホイストの制御回路において、 スイツチが投入されると、吊下負荷が無い状態
でも下降スイツチの投入による巻き下げ動作を許
容する押ボタンスイツチを備えたことを特徴とす
る電気ホイストの制御回路。[Scope of Claim for Utility Model Registration] When the lift switch is turned on, the hoisting motor rotates forward to perform the hoisting operation, and when the lowering switch is turned on, the hoisting motor is rotated in the reverse direction to perform the hoisting operation. In the control circuit of an electric hoist, which stops the lowering operation even if the lowering switch is turned on when the lower load disappears, when the switch is turned on, the lowering operation is allowed even when there is no lowering load by turning on the lowering switch. A control circuit for an electric hoist, characterized in that it is equipped with a push button switch.
JP14198889U 1989-12-11 1989-12-11 Pending JPH0382391U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14198889U JPH0382391U (en) 1989-12-11 1989-12-11

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14198889U JPH0382391U (en) 1989-12-11 1989-12-11

Publications (1)

Publication Number Publication Date
JPH0382391U true JPH0382391U (en) 1991-08-22

Family

ID=31688841

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14198889U Pending JPH0382391U (en) 1989-12-11 1989-12-11

Country Status (1)

Country Link
JP (1) JPH0382391U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009062072A (en) * 2007-09-06 2009-03-26 Asahi Breweries Ltd Valve assembly

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53142750A (en) * 1977-05-16 1978-12-12 Hitachi Kiden Kogyo Ltd Method of detecting landing of hung load of crane, etc.

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53142750A (en) * 1977-05-16 1978-12-12 Hitachi Kiden Kogyo Ltd Method of detecting landing of hung load of crane, etc.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009062072A (en) * 2007-09-06 2009-03-26 Asahi Breweries Ltd Valve assembly

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