JPS6422714A - Overhead conveyor having function for inspecting elongation - Google Patents
Overhead conveyor having function for inspecting elongationInfo
- Publication number
- JPS6422714A JPS6422714A JP18059787A JP18059787A JPS6422714A JP S6422714 A JPS6422714 A JP S6422714A JP 18059787 A JP18059787 A JP 18059787A JP 18059787 A JP18059787 A JP 18059787A JP S6422714 A JPS6422714 A JP S6422714A
- Authority
- JP
- Japan
- Prior art keywords
- elongation
- photoreceptor
- conveyor chain
- blocked
- detector
- 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
- Control Of Conveyors (AREA)
Abstract
PURPOSE:To simplify maintenance work by detecting elongation through combination of first detectors arranged for every pitch of a conveyor chain having predetermined number of links and second detectors arranged with interval with respect to the first detectors. CONSTITUTION:When a conveyor chain 1 is operated to face a dog pusher 4 with a photoreceptor 6 in a first detector, light emitted from a light emission element 5 is blocked and a detection signal is fed from the photoreceptor 6 to a decision circuit 20, At the same time, a closest upstream dog pusher 4' faces with any one of photoreceptors 10-13 in a second detector and the light emitted from a light emission element 7 is blocked. At this time, a photoreceptor operatable corresponding to elongation of the conveyor chain 1 moves from position 10 to 13. Consequently, a signal is fed from a photoreceptor at a position corresponding to the elongation to the decision circuit 20 which decides the elongation. Then an alarm is provided and the dog pusher 4 is marked based on the decision result. In such a manner, maintenance work can be simplified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18059787A JPS6422714A (en) | 1987-07-20 | 1987-07-20 | Overhead conveyor having function for inspecting elongation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18059787A JPS6422714A (en) | 1987-07-20 | 1987-07-20 | Overhead conveyor having function for inspecting elongation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6422714A true JPS6422714A (en) | 1989-01-25 |
Family
ID=16086043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18059787A Pending JPS6422714A (en) | 1987-07-20 | 1987-07-20 | Overhead conveyor having function for inspecting elongation |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6422714A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2377918A (en) * | 2001-07-24 | 2003-01-29 | Renold Plc | Chain wear measuring apparatus and method using two fixed sensors and two chain markers, and a control box with excessive chain elongation alarm |
| US6851546B2 (en) | 2003-04-05 | 2005-02-08 | Renold Plc | Chain wear monitoring method and apparatus |
| US7634949B2 (en) | 2005-07-23 | 2009-12-22 | Renold Plc | Transmission chain monitoring system |
-
1987
- 1987-07-20 JP JP18059787A patent/JPS6422714A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2377918A (en) * | 2001-07-24 | 2003-01-29 | Renold Plc | Chain wear measuring apparatus and method using two fixed sensors and two chain markers, and a control box with excessive chain elongation alarm |
| GB2377918B (en) * | 2001-07-24 | 2006-02-01 | Renold Plc | Chain elongation monitoring apparatus and method |
| US6851546B2 (en) | 2003-04-05 | 2005-02-08 | Renold Plc | Chain wear monitoring method and apparatus |
| US7634949B2 (en) | 2005-07-23 | 2009-12-22 | Renold Plc | Transmission chain monitoring system |
| US7886613B2 (en) | 2005-07-23 | 2011-02-15 | Renold Plc | Transmission chain monitoring system |
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