JPH01169595U - - Google Patents
Info
- Publication number
- JPH01169595U JPH01169595U JP6610288U JP6610288U JPH01169595U JP H01169595 U JPH01169595 U JP H01169595U JP 6610288 U JP6610288 U JP 6610288U JP 6610288 U JP6610288 U JP 6610288U JP H01169595 U JPH01169595 U JP H01169595U
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic
- oil tank
- switch
- lifting
- hydraulic cylinder
- 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
- 239000010720 hydraulic oil Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
Landscapes
- Shovels (AREA)
- Jib Cranes (AREA)
Description
第１図は本考案実施例の吊荷装置の安全装置の
油圧回路、第２図は油圧掘削機のバケツトにフツ
クを取付けた吊荷装置の説明図、第３図は油圧掘
削機のアーム先端ピンに取付けた専用ハンガの説
明図である。
１……油圧シリンダ、２……油ポンプ、３……
バルブ、４，８，１７……パイプ、５……ロツド
、６……ブーム、７……アーム、９……作動油タ
ンク、１０……スイツチ、１１……警報ランプ、
１２……ソレノイドバルブ、１３……リリーフバ
ルブ、１４……警報ブザー、１５……油圧スイツ
チ、１６……絞り弁。
Fig. 1 shows the hydraulic circuit of the safety device of the lifting device according to the embodiment of the present invention, Fig. 2 is an explanatory diagram of the lifting device with a hook attached to the bucket of a hydraulic excavator, and Fig. 3 shows the tip of the arm of the hydraulic excavator. It is an explanatory view of a special hanger attached to a pin. 1...Hydraulic cylinder, 2...Oil pump, 3...
Valve, 4, 8, 17...pipe, 5...rod, 6...boom, 7...arm, 9...hydraulic oil tank, 10...switch, 11...warning lamp,
12... Solenoid valve, 13... Relief valve, 14... Alarm buzzer, 15... Hydraulic switch, 16... Throttle valve.
Claims (1)
側に作動油タンクへ接続するバイパス回路を設け
ると共に、該回路に吊荷スイツチをオンオフする
と点滅する警報ランプに連動して開閉するソレノ
イドバルブと、前記油圧シリンダに規定以上の油
圧が加わると作動油タンクへ導通するリリーフバ
ルブと、この油圧でオンオフして警報ブザーを起
動停止する油圧スイツチを配設したことを特徴と
する建設機械の吊荷装置の安全装置。 A bypass circuit connected to a hydraulic oil tank is provided on the bottom side of a hydraulic cylinder attached to a lifting work machine, and a solenoid valve that opens and closes in conjunction with an alarm lamp that flashes when a load lifting switch is turned on and off is provided in the circuit; A lifting device for construction machinery, characterized in that it is equipped with a relief valve that conducts to a hydraulic oil tank when hydraulic pressure exceeding a specified value is applied to a hydraulic cylinder, and a hydraulic switch that turns on and off using this hydraulic pressure to start and stop an alarm buzzer. Safety device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6610288U JPH01169595U (en) | 1988-05-18 | 1988-05-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6610288U JPH01169595U (en) | 1988-05-18 | 1988-05-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01169595U true JPH01169595U (en) | 1989-11-30 |
Family
ID=31291518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6610288U Pending JPH01169595U (en) | 1988-05-18 | 1988-05-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01169595U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016008449A (en) * | 2014-06-25 | 2016-01-18 | コベルコ建機株式会社 | Construction machine |
-
1988
- 1988-05-18 JP JP6610288U patent/JPH01169595U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016008449A (en) * | 2014-06-25 | 2016-01-18 | コベルコ建機株式会社 | Construction machine |