GB793421A - Improvements in and relating to a tilt mechanism for the tilting of venetian blind slats - Google Patents

Improvements in and relating to a tilt mechanism for the tilting of venetian blind slats

Info

Publication number
GB793421A
GB793421A GB15988/56A GB1598856A GB793421A GB 793421 A GB793421 A GB 793421A GB 15988/56 A GB15988/56 A GB 15988/56A GB 1598856 A GB1598856 A GB 1598856A GB 793421 A GB793421 A GB 793421A
Authority
GB
United Kingdom
Prior art keywords
shaft
cord
worm
members
worm gear
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
Application number
GB15988/56A
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.)
Kirsch Co
Original Assignee
Kirsch Co
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
Application filed by Kirsch Co filed Critical Kirsch Co
Publication of GB793421A publication Critical patent/GB793421A/en
Expired legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06BFIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/26Lamellar or like blinds, e.g. venetian blinds
    • E06B9/28Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable
    • E06B9/30Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable
    • E06B9/303Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable with ladder-tape
    • E06B9/307Details of tilting bars and their operation
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06BFIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/26Lamellar or like blinds, e.g. venetian blinds
    • E06B9/28Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable
    • E06B2009/285Means for actuating a rod (being tilt rod or lift rod)

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Blinds (AREA)

Abstract

793,421. Venetian blinds. KIRSCH CO. May 23, 1956 [Sept. 12, 1955], No. 15988/56. Class 20(3) In order that a cord 23 for actuating the tilt mechanism of a venetian blind can be adjusted to bring both ends accessible to an operator, after cumulative slippage has taken place around its associated drive pulley 19, the latter is made of a deformable material, e.g. neoprene, so that the friction between it and the shaft 7 of a worm drive 8 of the tilt mechanism. normally sufficient to ensure normal functioning of the mechanism, can be overcome by a continued pull, after the tilt mechanism has reached an end position, on the appropriate end of the cord 23 which tightly engages a peripheral V-shaped groove 23 in the pulley 19 to rotate it round the shaft the desired amount. The pulley 19, forced over an outer flange 17 of the shaft 7 for location between it and an inner flange 16, has keyways 21 which, normally engaged by splines 18 on the shaft 7, disengage during adjustment of the cord 23. A tilt rod 2 accommodated in a head member 1 has key-ways 3 for engaging tilting members, not shown, and also a worm gear 4 meshing with a driving worm 8. The tilt rod 2 passes through holes 13 in a pair of identical opposed worm gear housing members 10 having half cylindrical grooves 11 which co-operate to provide a housing and form bearings for the worm 8, and recesses 12 which also co-operate to form a housing for the worm gear 4. When the members 10 are fitted together pins 14 on the members each fit into a corresponding hole 15 in the opposite member, and projections 33 on their upper and lower corners engage in corresponding notches 34 in the resilient arms 31 of a bracket 29, the arms 31 being sprung apart to receive the worm gear housing. The bracket 29, secured to a plate 25 which is frictionally retained between the sides of the head member 1, carries a bearing 28 for the shaft 2. A cord guide 36, made e.g. of nylon, is snapped into position in an opening in the base 27 of the head member.
GB15988/56A 1955-09-12 1956-05-23 Improvements in and relating to a tilt mechanism for the tilting of venetian blind slats Expired GB793421A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US793421XA 1955-09-12 1955-09-12

Publications (1)

Publication Number Publication Date
GB793421A true GB793421A (en) 1958-04-16

Family

ID=22149917

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15988/56A Expired GB793421A (en) 1955-09-12 1956-05-23 Improvements in and relating to a tilt mechanism for the tilting of venetian blind slats

Country Status (1)

Country Link
GB (1) GB793421A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108661531A (en) * 2017-03-30 2018-10-16 陈金福 Curtain

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108661531A (en) * 2017-03-30 2018-10-16 陈金福 Curtain
CN108661531B (en) * 2017-03-30 2020-05-19 陈金福 Window curtain

Similar Documents

Publication Publication Date Title
US4267875A (en) Sliding clutch for venetian blind
US4332288A (en) Pull carrier for vertically louvered venetian blind
KR101913167B1 (en) Sunlight-shielding device
GB926422A (en) Improvements in or relating to a venetian blind
US3996988A (en) Venetian blind, preferably a vertical blind
US5293921A (en) Coupling and transmission mechanism for window covering assembly
US5139072A (en) Coupling and transmission mechanism for drape or blind assembly
US2809531A (en) Tilt mechanism for venetian blinds
US20180044981A1 (en) Curtain controller
JP2000145328A (en) Shielding material lifting equipment for insolation shielding equipment and slat drive equipment for lateral blind
US2029143A (en) Venetian blind and mechanism for operating the same
GB793421A (en) Improvements in and relating to a tilt mechanism for the tilting of venetian blind slats
JPH07324572A (en) Slat lifting device for lateral blind
EP0210381A3 (en) Screen-positioning device for use in roll blind
KR102071941B1 (en) Drive device for blinds driven lines form a single line
WO2012161195A1 (en) Operating apparatus for solar radiation shielding device
EP1052365A2 (en) Operating mechanism for a venetian blind
ES8102263A1 (en) Vertical Venetian blind with laterally movable slats pivoting about their vertical axis.
US5179990A (en) Torque limiting drive for blinds
US2534777A (en) Venetian blind tilt control means
JP2000145329A (en) Slat drive equipment for lateral blind
US2369079A (en) Tilting mechanism for venetian blinds
US5392887A (en) Bi-directional tapered roller clutch
US2180311A (en) Tilting mechanism for venetian blinds
ATE76674T1 (en) BLIND PULLING AND TURNING MECHANISM.