JPS54151248A - Moment limitter - Google Patents
Moment limitterInfo
- Publication number
- JPS54151248A JPS54151248A JP5819578A JP5819578A JPS54151248A JP S54151248 A JPS54151248 A JP S54151248A JP 5819578 A JP5819578 A JP 5819578A JP 5819578 A JP5819578 A JP 5819578A JP S54151248 A JPS54151248 A JP S54151248A
- Authority
- JP
- Japan
- Prior art keywords
- cpu
- circuit
- memories
- produce
- output
- 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
- Jib Cranes (AREA)
Abstract
PURPOSE: To accomplish the elimination of adjustment, improvement in reliability and accuracy and the like by means of memories which are adapted to store allowable moment curves to produce an external signals through comparison of the allowable load value thus stored with actual loads.
CONSTITUTION: In a crane, after amplified by respective operational amplifiers 3, an output of a load cell 1 and an output of an angle detector 2 for detecting the boom angle are alternatedly digital-converted through a multiplexer 17, a sample hold circuit 18, a timing control circuit 21, a channel selection register 22, an A/D converter 19 and an interface circuit 20 and then, inputted to a CPU 23. Memories 24 storing various moment curves 1 to 3 respectively are connected switchable to the CPU 23, while an operational memory 25 is connected thereto. With such an arrangement, the CPU 23 reads out a corresponding address data from radius averaging data collected n times and compares the address data with a value averaging load data n times to produce a danger signal through a circuit 26.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5819578A JPS54151248A (en) | 1978-05-18 | 1978-05-18 | Moment limitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5819578A JPS54151248A (en) | 1978-05-18 | 1978-05-18 | Moment limitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54151248A true JPS54151248A (en) | 1979-11-28 |
Family
ID=13077234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5819578A Pending JPS54151248A (en) | 1978-05-18 | 1978-05-18 | Moment limitter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54151248A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57166298A (en) * | 1981-04-06 | 1982-10-13 | Toyoda Automatic Loom Works | Controller for angle of fork in forklift |
| JPS61124496A (en) * | 1984-11-19 | 1986-06-12 | 油谷重工株式会社 | Overload preventive device for indirect type crane |
| JPS61157590U (en) * | 1985-03-22 | 1986-09-30 | ||
| JP2017178502A (en) * | 2016-03-29 | 2017-10-05 | Ｉｈｉ運搬機械株式会社 | Crane overload prevention system and structure construction method using crane overload prevention system |
-
1978
- 1978-05-18 JP JP5819578A patent/JPS54151248A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57166298A (en) * | 1981-04-06 | 1982-10-13 | Toyoda Automatic Loom Works | Controller for angle of fork in forklift |
| JPH0124718B2 (en) * | 1981-04-06 | 1989-05-12 | Toyota Jido Shotsuki Seisakusho Kk | |
| JPS61124496A (en) * | 1984-11-19 | 1986-06-12 | 油谷重工株式会社 | Overload preventive device for indirect type crane |
| JPS61157590U (en) * | 1985-03-22 | 1986-09-30 | ||
| JP2017178502A (en) * | 2016-03-29 | 2017-10-05 | Ｉｈｉ運搬機械株式会社 | Crane overload prevention system and structure construction method using crane overload prevention system |
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