JP2539018Y2 - シャッターの安全装置 - Google Patents
シャッターの安全装置Info
- Publication number
- JP2539018Y2 JP2539018Y2 JP3837290U JP3837290U JP2539018Y2 JP 2539018 Y2 JP2539018 Y2 JP 2539018Y2 JP 3837290 U JP3837290 U JP 3837290U JP 3837290 U JP3837290 U JP 3837290U JP 2539018 Y2 JP2539018 Y2 JP 2539018Y2
- Authority
- JP
- Japan
- Prior art keywords
- seat plate
- shutter
- opening
- obstacle
- liquid crystal
- 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.)
- Expired - Lifetime
Links
- 239000004973 liquid crystal related substance Substances 0.000 claims description 29
- 230000003287 optical effect Effects 0.000 claims description 14
- 230000008054 signal transmission Effects 0.000 claims description 14
- 230000005540 biological transmission Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Landscapes
- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3837290U JP2539018Y2 (ja) | 1990-04-09 | 1990-04-09 | シャッターの安全装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3837290U JP2539018Y2 (ja) | 1990-04-09 | 1990-04-09 | シャッターの安全装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH03128194U JPH03128194U (enrdf_load_stackoverflow) | 1991-12-24 |
JP2539018Y2 true JP2539018Y2 (ja) | 1997-06-18 |
Family
ID=31546317
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3837290U Expired - Lifetime JP2539018Y2 (ja) | 1990-04-09 | 1990-04-09 | シャッターの安全装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2539018Y2 (enrdf_load_stackoverflow) |
-
1990
- 1990-04-09 JP JP3837290U patent/JP2539018Y2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH03128194U (enrdf_load_stackoverflow) | 1991-12-24 |
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