JPH0376063U - - Google Patents
Info
- Publication number
- JPH0376063U JPH0376063U JP13639989U JP13639989U JPH0376063U JP H0376063 U JPH0376063 U JP H0376063U JP 13639989 U JP13639989 U JP 13639989U JP 13639989 U JP13639989 U JP 13639989U JP H0376063 U JPH0376063 U JP H0376063U
- Authority
- JP
- Japan
- Prior art keywords
- boom
- detection means
- offset
- detecting
- work equipment
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims 4
- 238000005452 bending Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Operation Control Of Excavators (AREA)
- Shovels (AREA)
- Component Parts Of Construction Machinery (AREA)
Description
第１図はこの考案にかかる安全装置の回路図、
第２図はこの考案にかかる安全装置を装備した油
圧シヨベルの側面図、第３図は第２図のＡ部内に
おけるリアブームの根付部付近を示す要部拡大図
、第４図は第２図のＢ部をＣより見た要部平面図
、第５図は従来技術の油圧シヨベルの側面図、第
６図は作業機をオフセツト操作している油圧シヨ
ベルの平面図である。
４，４′……作業機、５，５′……ブーム、６
，６′……リアブーム、７，７′……フロントブ
ーム、１８……運転室、１９……オフセツトシリ
ンダ、２１……安全装置、２２，２３，２４……
リミツトスイツチ、２５……オフセツトシリンダ
用切換弁、２８……作動回路、２９……電磁弁。
Figure 1 is a circuit diagram of the safety device according to this invention.
Figure 2 is a side view of a hydraulic excavator equipped with the safety device according to this invention, Figure 3 is an enlarged view of the main part of the area A in Figure 2 showing the vicinity of the root of the rear boom, and Figure 4 is the same as in Figure 2. FIG. 5 is a side view of a conventional hydraulic excavator, and FIG. 6 is a plan view of a hydraulic excavator in which a working machine is operated in an offset manner. 4, 4'... work equipment, 5, 5'... boom, 6
, 6'... Rear boom, 7, 7'... Front boom, 18... Operator's cab, 19... Offset cylinder, 21... Safety device, 22, 23, 24...
Limit switch, 25...Offset cylinder switching valve, 28...Operating circuit, 29...Solenoid valve.
Claims (1)
り運転室側に向かつて屈折作業運動可能な作業機
を取付けている油圧シヨベルにおいて、作業機の
ブーム傾斜角を検出する検出手段と、フロントブ
ームの左右方向回動角を検出する検出手段と、オ
フセツトシリンダ用切換弁の切換位置を検出する
検出手段をそなえ、また、オフセツトシリンダの
作動回路にオフセツトシリンダ用切換弁と並列に
電磁弁を配設し、上記検出手段によりその電磁弁
の切換作動を行うようにし、ブーム上げ操作時に
ブームが設定されたブーム傾斜角に達したとき作
業機の運転室前方側にオフセツト量を減少するよ
うに構成したことを特徴とする油圧シヨベルの安
全装置。 In a hydraulic excavator in which a work equipment that can perform bending movement toward the driver's cab by offset operation is attached to the front part of the upper revolving structure, a detection means for detecting the boom inclination angle of the work equipment and a left-right rotation of the front boom are provided. It is equipped with a detection means for detecting the moving angle and a detection means for detecting the switching position of the switching valve for the offset cylinder, and a solenoid valve is arranged in parallel with the switching valve for the offset cylinder in the operating circuit of the offset cylinder. , the detection means is configured to perform a switching operation of the solenoid valve, and when the boom reaches a set boom inclination angle during boom raising operation, the amount of offset toward the front side of the operator's cab of the work equipment is reduced. A hydraulic excavator safety device featuring:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13639989U JPH082191Y2 (en) | 1989-11-25 | 1989-11-25 | Hydraulic excavator safety equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13639989U JPH082191Y2 (en) | 1989-11-25 | 1989-11-25 | Hydraulic excavator safety equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0376063U true JPH0376063U (en) | 1991-07-30 |
| JPH082191Y2 JPH082191Y2 (en) | 1996-01-24 |
Family
ID=31683607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13639989U Expired - Lifetime JPH082191Y2 (en) | 1989-11-25 | 1989-11-25 | Hydraulic excavator safety equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH082191Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008115619A (en) * | 2006-11-06 | 2008-05-22 | Setsuda Yane Kogyo:Kk | Clay panel, clay panel unit and manufacturing method of clay panel |
-
1989
- 1989-11-25 JP JP13639989U patent/JPH082191Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008115619A (en) * | 2006-11-06 | 2008-05-22 | Setsuda Yane Kogyo:Kk | Clay panel, clay panel unit and manufacturing method of clay panel |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH082191Y2 (en) | 1996-01-24 |
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