DE3783167D1 - Fall protection for a roller shutter. - Google Patents
Fall protection for a roller shutter.Info
- Publication number
- DE3783167D1 DE3783167D1 DE8787109548T DE3783167T DE3783167D1 DE 3783167 D1 DE3783167 D1 DE 3783167D1 DE 8787109548 T DE8787109548 T DE 8787109548T DE 3783167 T DE3783167 T DE 3783167T DE 3783167 D1 DE3783167 D1 DE 3783167D1
- Authority
- DE
- Germany
- Prior art keywords
- worm
- axis
- stepping motor
- shutter
- roller shutter
- 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 - Fee Related
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
- E06B9/80—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling
- E06B9/82—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic
- E06B9/84—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic against dropping
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
- Power-Operated Mechanisms For Wings (AREA)
Abstract
A worm (8), driven by a stepping motor (17), and a cooperating worm wheel (7) fitted to the axis of the winding shaft (5) for the roller shutter (6) provide a dynamic restraint force to prevent rapid descent of the shutter. The worm can slide in one direction along its axis (9) under control of the stepping motor until it reaches an end stop (15). The worm (8) is pressed into contact with the latter due to the dynamic restraint force between the worm and the worm wheel as the shutter drops down, to block any further descent. Pref. the stepping motor control (18) has a pair of switches (20,21) operated by displacement of the axis (9) of the worm (8).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE8787109548T DE3783167D1 (en) | 1986-07-03 | 1987-07-02 | Fall protection for a roller shutter. |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19863622436 DE3622436A1 (en) | 1986-07-03 | 1986-07-03 | Device for preventing a rolling shutter door from dropping down |
DE3637399 | 1986-11-03 | ||
DE8787109548T DE3783167D1 (en) | 1986-07-03 | 1987-07-02 | Fall protection for a roller shutter. |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3783167D1 true DE3783167D1 (en) | 1993-02-04 |
Family
ID=25845241
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8787109548T Expired - Fee Related DE3783167D1 (en) | 1986-07-03 | 1987-07-02 | Fall protection for a roller shutter. |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0251323B1 (en) |
DE (1) | DE3783167D1 (en) |
ES (1) | ES2036547T3 (en) |
GR (1) | GR3006866T3 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4884618A (en) * | 1988-08-05 | 1989-12-05 | Christopher Steeves | Roller blind mounting and rolling system |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT14778B (en) * | 1902-07-18 | 1904-01-25 | Siemens Ag | Worm drive. |
AT24076B (en) * | 1903-10-18 | 1906-05-10 | Max Reich | Device for releasing the axial pressure in winches with worm gears. |
DE328888C (en) * | 1919-10-02 | 1920-11-08 | Paul Siebel | Safety worm drive |
GB886139A (en) * | 1960-05-19 | 1962-01-03 | Ernst Ohler Senior | Anti-overload device for cold circular saw machines |
-
1987
- 1987-07-02 DE DE8787109548T patent/DE3783167D1/en not_active Expired - Fee Related
- 1987-07-02 EP EP87109548A patent/EP0251323B1/en not_active Expired - Lifetime
- 1987-07-02 ES ES198787109548T patent/ES2036547T3/en not_active Expired - Lifetime
-
1993
- 1993-01-21 GR GR930400120T patent/GR3006866T3/el unknown
Also Published As
Publication number | Publication date |
---|---|
EP0251323A3 (en) | 1988-05-11 |
ES2036547T3 (en) | 1993-06-01 |
GR3006866T3 (en) | 1993-06-30 |
EP0251323A2 (en) | 1988-01-07 |
EP0251323B1 (en) | 1992-12-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |