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HYDRAULIC CIRCUIT OF ATTACHMENT ATTACHING/DETACHING DEVICE
To provide a hydraulic circuit of an attachment attaching/detaching device which maintains an engaged state of a first pin and a second pin of an attachment.SOLUTION: In a hydraulic circuit 3 of an attachment attaching/detaching device 1, a first branch pipe 33 and a second branch pipe 34 extend from the upstream side of a first opening/closing valve 31 and a second opening/closing valve 32 interposed between a first main pipe 41 and a second main pipe 42 extending to an attachment 2, a first bypass pipe 35 and a second bypass pipe 36 extend from the downstream side of the first opening/closing valve 31 and the second opening/closing valve 32, the first branch pipe 33 and the second branch pipe 34 are connected to a first section 147 and a second section 148 of a cylinder 14 for a hook, and the first bypass pipe 35 and the second bypass pipe 36 are connected to the first section 147 and the second section 148 of the cylinder 14 for a hook with a first check valve 351 and a second check valve 361 interposed therebetween.SELECTED DRAWING: Figure 7
【課題】アタッチメントの第１ピン及び第２ピンの係合状態を維持するアタッチメント着脱装置の油圧回路を提供する。【解決手段】アタッチメント２へ延びる第１主配管41及び第２主配管42に介在させる第１開閉バルブ31及び第２開閉バルブ32の上流側から第１分岐配管33及び第２分岐配管34を、第１開閉バルブ31及び第２開閉バルブ32の下流側から第１迂回配管35及び第２迂回配管36を延ばし、第１分岐配管33及び第２分岐配管34はフック用シリンダ14の第１区画147及び第２区画148にそれぞれ接続し、第１迂回配管35及び第２迂回配管36は第１チェックバルブ351及び第２チェックバルブ361を介在させてフック用シリンダ14の第１区画147及び第２区画148に接続して構成されるアタッチメント着脱装置１の油圧回路３である。【選択図】図７
HYDRAULIC CIRCUIT OF ATTACHMENT ATTACHING/DETACHING DEVICE
To provide a hydraulic circuit of an attachment attaching/detaching device which maintains an engaged state of a first pin and a second pin of an attachment.SOLUTION: In a hydraulic circuit 3 of an attachment attaching/detaching device 1, a first branch pipe 33 and a second branch pipe 34 extend from the upstream side of a first opening/closing valve 31 and a second opening/closing valve 32 interposed between a first main pipe 41 and a second main pipe 42 extending to an attachment 2, a first bypass pipe 35 and a second bypass pipe 36 extend from the downstream side of the first opening/closing valve 31 and the second opening/closing valve 32, the first branch pipe 33 and the second branch pipe 34 are connected to a first section 147 and a second section 148 of a cylinder 14 for a hook, and the first bypass pipe 35 and the second bypass pipe 36 are connected to the first section 147 and the second section 148 of the cylinder 14 for a hook with a first check valve 351 and a second check valve 361 interposed therebetween.SELECTED DRAWING: Figure 7
【課題】アタッチメントの第１ピン及び第２ピンの係合状態を維持するアタッチメント着脱装置の油圧回路を提供する。【解決手段】アタッチメント２へ延びる第１主配管41及び第２主配管42に介在させる第１開閉バルブ31及び第２開閉バルブ32の上流側から第１分岐配管33及び第２分岐配管34を、第１開閉バルブ31及び第２開閉バルブ32の下流側から第１迂回配管35及び第２迂回配管36を延ばし、第１分岐配管33及び第２分岐配管34はフック用シリンダ14の第１区画147及び第２区画148にそれぞれ接続し、第１迂回配管35及び第２迂回配管36は第１チェックバルブ351及び第２チェックバルブ361を介在させてフック用シリンダ14の第１区画147及び第２区画148に接続して構成されるアタッチメント着脱装置１の油圧回路３である。【選択図】図７
HYDRAULIC CIRCUIT OF ATTACHMENT ATTACHING/DETACHING DEVICE
アタッチメント着脱装置の油圧回路
TAGUCHI YUICHI (author) / OKADA YASUHIRO (author)
2021-10-11
Patent
Electronic Resource
Japanese
IPC:
E02F
Baggern
,
DREDGING
HYDRAULIC CIRCUIT FOR COUNTERWEIGHT ATTACHING/DETACHING DEVICE
European Patent Office | 2018
| European Patent Office | 2024