WO1998030779A1 - A suspension for vertical slat blinds - Google Patents
A suspension for vertical slat blinds Download PDFInfo
- Publication number
- WO1998030779A1 WO1998030779A1 PCT/DK1998/000005 DK9800005W WO9830779A1 WO 1998030779 A1 WO1998030779 A1 WO 1998030779A1 DK 9800005 W DK9800005 W DK 9800005W WO 9830779 A1 WO9830779 A1 WO 9830779A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- slat
- suspension
- truck
- ring
- hook
- Prior art date
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
- E06B9/36—Lamellar or like blinds, e.g. venetian blinds with vertical lamellae ; Supporting rails therefor
- E06B9/362—Travellers; Lamellae suspension stems
Definitions
- the slats maintain such a distance along the window or other placement that they can overlap by turning one or the other way around a vertical axis (closing) , and in the other operating position they are retracted, so that they take up minimum space in the light area of the window, when they are tightly drawn together perpendicular to the plane of the window.
- Turning may e.g. occur by transferring a rotation of a horizontally disposed shaft to the rotatably disposed element.
- Retraction occurs by pulling the outermost truck against its neighbour, upon which more and more trucks with slats are pulled to one side of the window or some other suitable parking position. Covering of the window occurs by removing the outermost truck from its neighbour.
- a type of truck which permits close retraction is described in DK Patent No. 143.516 in which a longitudinal rod with a spur wheel profile is used, but trucks may also be constructed with helical gears which drive vertical spur wheels. The closest retraction is obtained when the trucks touch, and the thickness of the suspension of the slats correspond to this, but only when they are perpendicular to the plane of the window.
- connection between the rotatable element of the truck and the suspension for the slat consists of two parts with cooperating surfaces which are arranged such that a turning of the slat causes a lifting of the same above a position of rest.
- the position of rest is the position that the slat will take with respect to the rotatable part of the truck and is hence the lowest position of the slat, and thus the force of gravity is utilised for obtaining the position of rest.
- An embodiment of the invention is particular in that the cooperating surfaces consist of an essentially horizontal and cylindrical part of the truck in the form of a hook and two surfaces disposed in a horizontal hole in the the carrier for the slat, in planes which in the assembled condition intersect vertically above the cylindrical part.
- the cooperating surfaces consist of an essentially horizontal and cylindrical part of the truck in the form of a hook and two surfaces disposed in a horizontal hole in the the carrier for the slat, in planes which in the assembled condition intersect vertically above the cylindrical part.
- the truck carries an element with a given thickness and a horizontal hole, the lower part of which consists of two surfaces in planes which intersect vertically below the truck, for cooperating with a hook with a horizontal part which is fitted to the suspension of the slat. Any turning of the hook of the slat suspension with respect to the element on the truck will cause the hook to be lifted, and thus the restoring force is obtained by the component of the force of gravity along the surface on either side of the hook.
- This embodiment may best be described in that it comprises the same elements as above, only in the opposite order. Further embodiments are advantageous in that a ring is used instead of a hook, and in that there is furthermore provided a slit in the surround of the hole so that the elements may be joined.
- the edge of the ring is wedge-shaped on the part which engages the slit in order to facilitate the opening of the slit, whereby the ring enters the hole.
- An advantageous embodiment is particular in that the cylindrical part of the hook, respectively the ring, is slightly curved. Hereby an action similar to a universal joint is obtained for the transfer between the hook or the ring and the corresponding hole.
- a further embodiment is particular in that the slat and its suspension are in one piece, and in that the horizontal hole is disposed in the slat itself.
- Fig. 1 shows the mechanical parts of a slat blind
- Fig. 2 shows a single truck with a hook and a slat suspension
- Fig. 3 shows a hook and the corresponding cogwheel in enlargement
- Fig. 4 shows an enlarged representation of the engagement of hook and hole in the position of rest
- Fig. 5 shows a corresponding enlarged representation of the engagement when the slat suspension is turned with respect to the hook
- Fig. 6 shows a ring at the lower part of a truck
- Fig. 7 shows a slat suspension with a hole and slit
- Fig. 8 shows a particular disposition of a ring.
- Fig. 1 is an isometric representation of the complete mechanical part of a slat blind according to the invention, albeit in a shortened version, in that the horizontal shaft 1 is very short, and only four trucks 2a, 2b, 2c, 2d are shown, each being fitted with two wheels, where the wheel 3a has been identified on the drawing.
- the wheels carry the trucks and are able to roll on tracks or rails which are not shown.
- the horizontal shaft 1 is carried in bearings at both ends 4 and 5 and has a drive, which is not shown, at one end 4, i order that it can rotate one way or the other.
- the whole shaft is shaped as a very long spur wheel .
- the rotation of the shaft is transferred to gear rims built into the trucks.
- Fig. 2 is shown a single truck in isometric representation in a direction towards the ende of the mechanical part 5 of the slat blind.
- the individual components are clearly visible, e.g. the hole la in the truck through which the shaft 1 passes and the gear rim T which is turned when the shaft 1 turns .
- the hook 8a is firmly connected.
- the invention relates in particular to the cooperation between the hook 8a of the truck and the suspension hole 7a on the slat suspension 6a.
- Fig. 3 is shown the rotatable element in the truck. It consists essentially of the gear rim, i.e. a part of a gear wheel T, a rotatably supported part B and a hook 8a.
- the "ideal 11 retraction of the slat blind leaves all hooks oriented in a plane which also comprises the shaft/spur wheel 1 (as shown in Fig. 1) which also is the centre position of the gear rim T.
- the retraction of the slat blind at least in the case of a singly-operated slat blind, will always take place with all hooks having the same angular position to one or the other side. This does not prevent all the trucks 2a, 2b, 2c, 2d from being very close after all.
- Fig. 4 is seen a section trough the engagement between the suspension hole 7a and the hook 8a in the "ideal'' retracted position. Sections in the plane of the hook and perpendicular thereto are shown.
- the suspension hole is disposed as two slanted surfaces RI and R2 which are joined at the top by a cylindrical piece which the same radius as the material of the hook.
- Fig. 5 is shown corresponding sections in the engagement in the case that the slat suspension and hence the slat are turned with respect to the hook in the "ideal' 1 case. Thereby the surfaces RI and R2 are lifted on the hook until the bottom part of the hole abuts the lower side of the hook 8a. The far end of the hook will still ensure that the slat suspension 6a is not separated from the hook.
- This slit is disposed at an angle, whereby two advantages are obtained in cooperation with the wedge on the ring 8 ' which is to engage the the hole 7'.
- the advantages consist in that there is an overlapping of the two parts of the edge of the hole which is to be carried by the ring, and that these parts are bent sideways during assembly. Hence the wedge W does not need to overcome a large force, and a permanent deformation of the two parts separated by the slit S is avoided.
- Fig. 8 is shown a particular embodiment of the wedge , in that its edge is shaped like a sickle in order that its ability to create a passage for the ring 8' through the slit S to the inside of the hole 7 ' is enhanced.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP98900075A EP0961865B1 (en) | 1997-01-07 | 1998-01-07 | A suspension unit for vertical slat blinds |
AU53124/98A AU5312498A (en) | 1997-01-07 | 1998-01-07 | A suspension for vertical slat blinds |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK1897 | 1997-01-07 | ||
DK0018/97 | 1997-01-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998030779A1 true WO1998030779A1 (en) | 1998-07-16 |
Family
ID=8088825
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DK1998/000005 WO1998030779A1 (en) | 1997-01-07 | 1998-01-07 | A suspension for vertical slat blinds |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0961865B1 (en) |
AU (1) | AU5312498A (en) |
WO (1) | WO1998030779A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2415887A (en) * | 2004-07-09 | 2006-01-11 | Seymour Mfg Internat Ltd | Curtain rail assembly |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2198047A1 (en) * | 1972-09-06 | 1974-03-29 | Regolux Srl | |
GB2031493A (en) * | 1978-09-09 | 1980-04-23 | Louver Lite Ltd | Slat blind |
DK143516B (en) * | 1976-10-29 | 1981-08-31 | Faber Ryslinge As | THE RINGS WITH BALL JOINT HANGES FOR DIFFERENT LAMELS |
GB2080864A (en) * | 1980-07-25 | 1982-02-10 | Haller Kg Berthold | Suspension means for vertical slat blinds |
-
1998
- 1998-01-07 AU AU53124/98A patent/AU5312498A/en not_active Abandoned
- 1998-01-07 WO PCT/DK1998/000005 patent/WO1998030779A1/en active IP Right Grant
- 1998-01-07 EP EP98900075A patent/EP0961865B1/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2198047A1 (en) * | 1972-09-06 | 1974-03-29 | Regolux Srl | |
DK143516B (en) * | 1976-10-29 | 1981-08-31 | Faber Ryslinge As | THE RINGS WITH BALL JOINT HANGES FOR DIFFERENT LAMELS |
GB2031493A (en) * | 1978-09-09 | 1980-04-23 | Louver Lite Ltd | Slat blind |
GB2080864A (en) * | 1980-07-25 | 1982-02-10 | Haller Kg Berthold | Suspension means for vertical slat blinds |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2415887A (en) * | 2004-07-09 | 2006-01-11 | Seymour Mfg Internat Ltd | Curtain rail assembly |
GB2415887B (en) * | 2004-07-09 | 2008-02-13 | Seymour Mfg Internat Ltd | Curtain rails |
Also Published As
Publication number | Publication date |
---|---|
AU5312498A (en) | 1998-08-03 |
EP0961865A1 (en) | 1999-12-08 |
EP0961865B1 (en) | 2002-06-26 |
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