JPS60120067U - Safety devices for swinging work machines - Google Patents
Safety devices for swinging work machinesInfo
- Publication number
- JPS60120067U JPS60120067U JP891984U JP891984U JPS60120067U JP S60120067 U JPS60120067 U JP S60120067U JP 891984 U JP891984 U JP 891984U JP 891984 U JP891984 U JP 891984U JP S60120067 U JPS60120067 U JP S60120067U
- Authority
- JP
- Japan
- Prior art keywords
- link
- rotation
- rotating body
- link structure
- parallel
- 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
Landscapes
- Operation Control Of Excavators (AREA)
- Component Parts Of Construction Machinery (AREA)
- Jib Cranes (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
図は油圧ショベルを適用対象とした本考案の実施例を示
し、第１図は油圧ショベル全体の斜視図、第２図は同シ
ョベルアタッチメントを省略シた平面図、第３図はリン
ク構造体を折畳んだ状態の斜視図、第４図は同リンク構
造体の拡大平面図、第５図は第４図■一■線に沿う拡大
断面図、第６図は旋回停止のための制御回路図、第７図
はリンク構造体にかかる他の実施例を示す第４図相肖図
である。
２・・・・・・旋回体、４・・・・・・リンク構造体、
５，５・・・・・・リンク構造体の枢軸としての縦軸、
６・・・・・・前部回動リンク、７・・・・・・後部吋
動リンク、９・・・・・・連結リンク、１９・・・・・
・検出素子としてのリードスイッチ、２０，２１・・・
・・・旋回停止用リレー２３・・・・・・同電磁切換弁
。The figures show an embodiment of the present invention applied to a hydraulic excavator. Fig. 1 is a perspective view of the entire hydraulic excavator, Fig. 2 is a plan view with the excavator attachment omitted, and Fig. 3 shows a link structure. A perspective view of the folded state, FIG. 4 is an enlarged plan view of the link structure, FIG. 5 is an enlarged cross-sectional view taken along the line 1 in FIG. 4, and FIG. 6 is a control circuit diagram for stopping rotation. , FIG. 7 is a fourth diagram showing another embodiment of the link structure. 2...Swivel body, 4...Link structure,
5,5... Vertical axis as the pivot of the link structure,
6...Front rotation link, 7...Rear swing link, 9...Connection link, 19...
・Reed switch as a detection element, 20, 21...
... Swing stop relay 23 ... The same electromagnetic switching valve.
Claims (1)
れた前部および後部回動リンクと、旋回体側面部と平行
状態で前後両端部が該両回動リンクの先端部に縦軸まわ
りに回動可能に枢支連結された連結リンクとによって、
上記後部リンクの先端が旋回体後端の旋回軌跡上または
該軌跡より外側に位置し全体として平行リンク運動を行
なうリンク構造体を構成し、このリンク構造体には、旋
回体の旋回方向に対向する方向の外力による該リンク構
造体の平行リンク運動を検出する検出素子を設け、該検
出素子の検出信号に基づく自動停止信号を旋回体の旋回
制御系に入力して自動的に旋回停止させうるように構成
したことを特徴とする旋回作業機械の安全装置。Front and rear rotation links whose base ends are pivotally connected to the side surface of the rotating body so as to be rotatable about a vertical axis; and front and rear pivot links whose base ends are parallel to the side surface of the rotating body and whose front and rear ends are distal ends of the two rotation links. and a connecting link rotatably connected to the vertical axis.
The tip of the rear link constitutes a link structure in which the tip of the rear link is located on or outside the turning trajectory of the rear end of the rotating body and performs a parallel link movement as a whole, and this link structure has a A detection element is provided for detecting parallel link movement of the link structure due to an external force in a direction, and an automatic stop signal based on a detection signal of the detection element is input to a rotation control system of the revolving body to automatically stop the rotation. A safety device for a swing work machine, characterized in that it is configured as follows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP891984U JPS60120067U (en) | 1984-01-25 | 1984-01-25 | Safety devices for swinging work machines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP891984U JPS60120067U (en) | 1984-01-25 | 1984-01-25 | Safety devices for swinging work machines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60120067U true JPS60120067U (en) | 1985-08-13 |
Family
ID=30488645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP891984U Pending JPS60120067U (en) | 1984-01-25 | 1984-01-25 | Safety devices for swinging work machines |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60120067U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019182622A (en) * | 2018-04-13 | 2019-10-24 | コベルコ建機株式会社 | Construction machine |
-
1984
- 1984-01-25 JP JP891984U patent/JPS60120067U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019182622A (en) * | 2018-04-13 | 2019-10-24 | コベルコ建機株式会社 | Construction machine |
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