JP2517188Y2 - バランスシャッター操作力軽減装置 - Google Patents
バランスシャッター操作力軽減装置Info
- Publication number
- JP2517188Y2 JP2517188Y2 JP1989147690U JP14769089U JP2517188Y2 JP 2517188 Y2 JP2517188 Y2 JP 2517188Y2 JP 1989147690 U JP1989147690 U JP 1989147690U JP 14769089 U JP14769089 U JP 14769089U JP 2517188 Y2 JP2517188 Y2 JP 2517188Y2
- Authority
- JP
- Japan
- Prior art keywords
- shutter
- moment
- shutter curtain
- spring
- weight
- 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
- 230000009467 reduction Effects 0.000 title description 2
- 230000008859 change Effects 0.000 claims description 10
- 238000004804 winding Methods 0.000 description 27
- 239000002184 metal Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000000630 rising effect Effects 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 |
|---|---|---|---|
| JP1989147690U JP2517188Y2 (ja) | 1989-12-25 | 1989-12-25 | バランスシャッター操作力軽減装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989147690U JP2517188Y2 (ja) | 1989-12-25 | 1989-12-25 | バランスシャッター操作力軽減装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0387797U JPH0387797U (enrdf_load_stackoverflow) | 1991-09-06 |
| JP2517188Y2 true JP2517188Y2 (ja) | 1996-11-13 |
Family
ID=31694194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989147690U Expired - Lifetime JP2517188Y2 (ja) | 1989-12-25 | 1989-12-25 | バランスシャッター操作力軽減装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2517188Y2 (enrdf_load_stackoverflow) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5597097U (enrdf_load_stackoverflow) * | 1978-12-28 | 1980-07-05 |
-
1989
- 1989-12-25 JP JP1989147690U patent/JP2517188Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0387797U (enrdf_load_stackoverflow) | 1991-09-06 |
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