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 slatsInfo
- 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
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
- E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
- E06B9/26—Lamellar or like blinds, e.g. venetian blinds
- E06B9/28—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable
- E06B9/30—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable
- E06B9/303—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable with ladder-tape
- E06B9/307—Details of tilting bars and their operation
-
- 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
- E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
- E06B9/26—Lamellar or like blinds, e.g. venetian blinds
- E06B9/28—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable
- E06B2009/285—Means 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.
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108661531A (en) * | 2017-03-30 | 2018-10-16 | 陈金福 | Curtain |
-
1956
- 1956-05-23 GB GB15988/56A patent/GB793421A/en not_active Expired
Cited By (2)
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 |
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