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
Application number
DE8787109548T
Other languages
German (de)
Inventor
Stephan Dipl Phys Hoermann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hoermann KG Brockhagen
Original Assignee
Hoermann KG Brockhagen
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from DE19863622436 external-priority patent/DE3622436A1/en
Application filed by Hoermann KG Brockhagen filed Critical Hoermann KG Brockhagen
Priority to DE8787109548T priority Critical patent/DE3783167D1/en
Application granted granted Critical
Publication of DE3783167D1 publication Critical patent/DE3783167D1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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).
DE8787109548T 1986-07-03 1987-07-02 Fall protection for a roller shutter. Expired - Fee Related DE3783167D1 (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
GR3006866T3 (en) 1993-06-30
EP0251323A2 (en) 1988-01-07
ES2036547T3 (en) 1993-06-01
EP0251323A3 (en) 1988-05-11
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