JPH024885U - - Google Patents
Info
- Publication number
- JPH024885U JPH024885U JP8168788U JP8168788U JPH024885U JP H024885 U JPH024885 U JP H024885U JP 8168788 U JP8168788 U JP 8168788U JP 8168788 U JP8168788 U JP 8168788U JP H024885 U JPH024885 U JP H024885U
- Authority
- JP
- Japan
- Prior art keywords
- relief valve
- lifting equipment
- hydraulic circuit
- steadying
- prevention device
- 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
- 230000002265 prevention Effects 0.000 claims description 4
- 230000002159 abnormal effect Effects 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 2
- 230000000284 resting effect Effects 0.000 claims 2
- 239000000725 suspension Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
- Control And Safety Of Cranes (AREA)
Description
第１図および第２図は本考案に係る異常荷重防
止装置の概略図、第３図はコンテナクレーンの説
明図である。
２ａ，２ｂ…吊具振止用油圧回路、２４…リリ
ーフバルブ、２１，２６…管路、２２…バツクア
ツプシリンダ、２７…アキユムレーター、４１ａ
，４１ｂ…複合メインシリンダ、４６…メインシ
リンダ部、４７…バツクアツプシリンダ部、４８
…管。
1 and 2 are schematic diagrams of an abnormal load prevention device according to the present invention, and FIG. 3 is an explanatory diagram of a container crane. 2a, 2b...Hydraulic circuit for suspending equipment, 24...Relief valve, 21, 26...Pipeline, 22...Backup cylinder, 27...Accumulator, 41a
, 41b...Composite main cylinder, 46...Main cylinder section, 47...Backup cylinder section, 48
…tube.
Claims (1)
圧回路によつて接続され、かつ、前記吊具振止用
油圧回路にリリーフバルブが接続されているクレ
ーンの異常荷重防止装置であつて、前記吊具振止
用油圧回路からリリーフバルブに至る管路にバツ
クアツプシリンダとアキユムレーターとを配設さ
せると共に、前記リリーフバルブの容量を小さく
したクレーンの異常荷重防止装置。 ２ メインシリンダ部とバツクアツプシリンダ部
により吊具振止用の複合メインシリンダを構成し
、前記メインシリンダ部同志を吊具振止用油圧回
路により接続させると共に、バツクアツプシリン
ダ部同志を管により連通させ、かつ、該連通管か
らリリーフバルブに至る管路にアキユムレーター
を配設させ、かつ、前記リリーフバルブの容量を
小さくしたクレーンの異常荷重防止装置。[Scope of Claim for Utility Model Registration] 1. A pair of cylinders for steadying the lifting equipment are connected by a hydraulic circuit for resting the lifting equipment, and a relief valve is connected to the hydraulic circuit for resting the lifting equipment. An abnormal load prevention device for a crane, in which a back-up cylinder and an accumulator are arranged in the pipeline from the suspension hydraulic circuit to the relief valve, and the capacity of the relief valve is reduced. Prevention device. 2 The main cylinder part and the back-up cylinder part constitute a composite main cylinder for steadying the lifting equipment, and the main cylinder parts are connected to each other by a hydraulic circuit for steadying the lifting equipment, and the back-up cylinder parts are connected to each other by a pipe. An abnormal load prevention device for a crane, in which an accumulator is disposed in a conduit leading from the communication pipe to a relief valve, and the capacity of the relief valve is reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8168788U JPH024885U (en) | 1988-06-22 | 1988-06-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8168788U JPH024885U (en) | 1988-06-22 | 1988-06-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH024885U true JPH024885U (en) | 1990-01-12 |
Family
ID=31306461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8168788U Pending JPH024885U (en) | 1988-06-22 | 1988-06-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH024885U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS517654A (en) * | 1974-07-08 | 1976-01-22 | Hitachi Ltd | Tsuriguno furedomesochi |
-
1988
- 1988-06-22 JP JP8168788U patent/JPH024885U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS517654A (en) * | 1974-07-08 | 1976-01-22 | Hitachi Ltd | Tsuriguno furedomesochi |
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