JPS6165081U - - Google Patents
Info
- Publication number
- JPS6165081U JPS6165081U JP15232585U JP15232585U JPS6165081U JP S6165081 U JPS6165081 U JP S6165081U JP 15232585 U JP15232585 U JP 15232585U JP 15232585 U JP15232585 U JP 15232585U JP S6165081 U JPS6165081 U JP S6165081U
- Authority
- JP
- Japan
- Prior art keywords
- piston
- cylinder
- sub
- main
- spring
- 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
- 239000012530 fluid Substances 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 3
- 230000036316 preload Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Output Control And Ontrol Of Special Type Engine (AREA)
- Actuator (AREA)
- Fluid-Pressure Circuits (AREA)
Description
第1図は本考案の実施例の縦断面図、第2図は
本考案の装置を具えた物上げ機械の一例を示す略
図、第3図および第4図は本考案の装置によつて
制御される流体回路の異なる例を示す回路図であ
る。
1……過負荷検出装置、2……流体圧原動機、
4……荷重支持索、8……根止め部、10……取
付部、12……検知シリンダ、13……スピンド
ル、16……ピストン、20……ばね、22……
リミツトバルブ、24……主シリンダ、25……
主ピストン、27……連通路、28……副シリン
ダ、29……副ピストン。
Figure 1 is a longitudinal sectional view of an embodiment of the present invention, Figure 2 is a schematic diagram showing an example of a lifting machine equipped with the device of the present invention, and Figures 3 and 4 are controlled by the device of the present invention. FIG. 3 is a circuit diagram showing different examples of fluid circuits. 1... Overload detection device, 2... Fluid pressure prime mover,
4...Load supporting cable, 8... Root stop, 10... Mounting part, 12... Detection cylinder, 13... Spindle, 16... Piston, 20... Spring, 22...
Limit valve, 24...Main cylinder, 25...
Main piston, 27...Communication passage, 28...Sub-cylinder, 29...Sub-piston.
Claims (1)
重支持索4の根止め部8を支持した取付部10を
結合した主ピストン25が内蔵されている主シリ
ンダ24と、副ピストン29が内蔵され前記主シ
リンダ24よりも小径の副シリンダ28と、前記
二つのシリンダ24,28を連通した連通路27
と、一体のスピンドル13およびピストン16と
荷重の設定値に対応する予圧が与えられたばね2
0とが内蔵された検知シリンダ12と、流体回路
の開閉、切換え等を行なうリミツトバルブ22と
を具え、前記主シリンダ24と副シリンダ28と
には作動液体が充満されており、前記ばね20は
前記ピストン16を前記副ピストン29に常に接
触させるように働くとともに前記スピンドル13
が前記リミツトバルブ22を動作するように構成
されている過負荷検出装置。 In a lifting machine using a fluid pressure engine, a main cylinder 24 has a built-in main piston 25 connected to a mounting part 10 that supports a root stop part 8 of a load-supporting cable 4, and a sub-piston 29 has a built-in main cylinder 24. A sub-cylinder 28 having a smaller diameter than the cylinder 24 and a communication passage 27 that communicates the two cylinders 24 and 28.
, an integrated spindle 13 and piston 16, and a spring 2 that is given a preload corresponding to the set value of the load.
0 and a limit valve 22 for opening, closing, switching, etc. the fluid circuit, the main cylinder 24 and the sub cylinder 28 are filled with working fluid, and the spring 20 is The spindle 13 acts to keep the piston 16 in constant contact with the sub-piston 29, and
an overload detection device configured to operate the limit valve 22;
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15232585U JPS6165081U (en) | 1985-10-04 | 1985-10-04 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15232585U JPS6165081U (en) | 1985-10-04 | 1985-10-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6165081U true JPS6165081U (en) | 1986-05-02 |
Family
ID=30710395
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15232585U Pending JPS6165081U (en) | 1985-10-04 | 1985-10-04 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6165081U (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5132865B1 (en) * | 1971-04-23 | 1976-09-16 |
-
1985
- 1985-10-04 JP JP15232585U patent/JPS6165081U/ja active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5132865B1 (en) * | 1971-04-23 | 1976-09-16 |
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