EP0032243A2 - Carrier for blinds with swivelling vertical strips - Google Patents
Carrier for blinds with swivelling vertical strips Download PDFInfo
- Publication number
- EP0032243A2 EP0032243A2 EP80108231A EP80108231A EP0032243A2 EP 0032243 A2 EP0032243 A2 EP 0032243A2 EP 80108231 A EP80108231 A EP 80108231A EP 80108231 A EP80108231 A EP 80108231A EP 0032243 A2 EP0032243 A2 EP 0032243A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- carrier
- hooking element
- fact
- sprocket wheel
- frictional
- 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.)
- Withdrawn
Links
Images
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
- E06B9/364—Operating mechanisms therein
Definitions
- This invention concerns a carrier for blinds with swivelling vertical strips,in which each strip or panel of textile or similar material, is suspended from a carrier running along horizontal rails, by means of a hooking element.
- the second type of carrier With the second type of carrier,the angular position of the hooking element can be changed even after the blind has been assembled, thanks to the use of a frictional device provid ed between the hooking element and the sprocket wheel; however, fitting the frictional device, in this second type of carrier proves to be lab orious and expensive.
- the aim of this invention is to overcome these problems by providing a running carrier for sup porting the swivelling vertical strips of blinds, in which the hooking element.of the strips can be rotated on the axis of the sprocket wheel even after assembling, in order to adjust the initial angular position of the strips themselves, and in which the frictional device forms an integ ral part of the hooking element and of the sprocket wheel itself.
- the advantages offered by this invention consist in greater simplicity in constructing and assembl ing the carrier, together with a subsequent reduct ion in costs, due to the fact that the sprocket wheel and the hooking element, together with their frictional portions, can be moulded or shaped in one piece, in plastic or other material having a certain amount of elasticity.
- the figures show part of a vertical strip or panel-type blind, comprising a rail 1, suitable for fixing the ceiling or to the wall, within which there are carriers 2, only one of which is shown in the figures, provided with wheels for running along the rail itself.
- the carrier 2 comprises a frame defining a housing 4 for a sprocket-wheel 5 and a hooking element 6 partially protruding downwards from an aperture 7 (Fig. 6) in the lower wall of the housing 4 of the carrier; a vertical strip or panel of textile material (not shown) hangs in the usual way from the hooking element 6, to form part of the swivelling-strip blind.
- the sprocket wheel 5 engages with a worm screw 8 which slides lengthwise along a control rod 9, arranged laterally, and passing through aligned apertures 10 on both side walls of the carrier 2.
- Rotation of the worm screw 8, by means of the control rod 9, is achieved by providing the rod 9 with lengthwise slots 11 in which teeth, or appropiate ribbings in the abovementioned worm screw; engage and slide.
- the hooking element 6 comprises a lower hook-shaped part 12 which continues with a neck portion 13 defined by lower shoulders 14 and by a circular upper shoulder 15, by means of which the sprocket wheel 5 - hooking element 6 assembly is rotary supported in the hole 7 at the bottom of the housing 4 in the carrier.
- the frictional elements 17 are disposed at a short distance from the shank 16, present a circular segment cross-section and extend only along part of the length of the shank itself, as shown.
- 24 indicates a lateral tooth situated on the neck portion 13 which engages with stop surfaces 25 and 26 at the opposite ends of a semi-circular protrusion 27 on the lower wall of the housing 4, as shown in figure 1 and 6.
- Figure 5 shows the structural shape of the sprocket wheel 5.
- This sprocket wheel 5 which, likely the hooking element 6, can be molded from plastic material with a certain amount of flexibility, presents an upper part with external toothing 28 designed to engage with the elical toothing of the worm screw 8, and a lower or frictional part 29.
- the lower cavity32 defines a frictional surface 33 designed to come mutually into contact with the frictional portion of the hooking element 6 defined by the element 17.
Abstract
A supporting carrier for blinds comprising swivelling vertical strips or panels. A hooking element (6) comprises a hook-shaped lower part and an upper shank (16) inserted into a hole (30) of a supporting sprocket wheel (5), connected to a worm screw (8) sliding along a horizontal control rod (9) for all the carriers (2) of the blind. The hooking element (6) and the sprocket wheel (5) are provided with frictional surfaces (18, 33) reciprocally engagaging with a certain amount of friction; stop means (25,26) on the carrier (2) cooperate with a lateral tooth (24) on the hooking element (6) to automatically define two end angular positions of the hooking elements (6) for a parallel arranging of all the vertical strips of the blind.
Description
- This invention concerns a carrier for blinds with swivelling vertical strips,in which each strip or panel of textile or similar material, is suspended from a carrier running along horizontal rails, by means of a hooking element.
- There are known carriers for supporting blinds with vertical strips, in which the hooking el= ement of the strip is connected to a sprocket wheel which engages with a driving worm screw sliding along a control rod, by means of which it is possible to simultaneously turn all the panels of the blind in the desired direction. The hooking element is either fixed directly to the sprocket wheel, or it is connected by means of a supplementary frictional device.
- With the first type of carrier, it is impos= sible to change the initial position of the hooking element once the blind has been as= sembled, in order to arrange all the vertical strips on a parallel line with one another, consequently this operation must be carried out in a rather approximate way when assembling the blind. With the second type of carrier,the angular position of the hooking element can be changed even after the blind has been assembled, thanks to the use of a frictional device provid ed between the hooking element and the sprocket wheel; however, fitting the frictional device, in this second type of carrier proves to be lab orious and expensive.
- The aim of this invention is to overcome these problems by providing a running carrier for sup porting the swivelling vertical strips of blinds, in which the hooking element.of the strips can be rotated on the axis of the sprocket wheel even after assembling, in order to adjust the initial angular position of the strips themselves, and in which the frictional device forms an integ ral part of the hooking element and of the sprocket wheel itself.
- The advantages offered by this invention consist in greater simplicity in constructing and assembl ing the carrier, together with a subsequent reduct ion in costs, due to the fact that the sprocket wheel and the hooking element, together with their frictional portions, can be moulded or shaped in one piece, in plastic or other material having a certain amount of elasticity.
- An embodiment of the invention is described in detail hereunder, with reference to the annexed drawings, in which :
- Fig. 1 shows a cross section of a carrier;
- fig. 2 shows a partially cutaway view, along the line 2-2 of Fig. 1:
- Fig. 3 shows a side view of the hooking element;
- Fig. 4 shows a top view of the hooking element of Fig. 3;
- Fig. 5 shows a lengthwise cross-section of the single sprocket wheel;
- Fig. 6 shows a detail of the carrier of Fig.1
- The figures show part of a vertical strip or panel-type blind, comprising a rail 1, suitable for fixing the ceiling or to the wall, within which there are
carriers 2, only one of which is shown in the figures, provided with wheels for running along the rail itself. Thecarrier 2 comprises a frame defining a housing 4 for a sprocket-wheel 5 and a hooking element 6 partially protruding downwards from an aperture 7 (Fig. 6) in the lower wall of the housing 4 of the carrier; a vertical strip or panel of textile material (not shown) hangs in the usual way from the hooking element 6, to form part of the swivelling-strip blind. - The
sprocket wheel 5 engages with a worm screw 8 which slides lengthwise along acontrol rod 9, arranged laterally, and passing through aligned apertures 10 on both side walls of thecarrier 2. Rotation of the worm screw 8, by means of thecontrol rod 9, is achieved by providing therod 9 withlengthwise slots 11 in which teeth, or appropiate ribbings in the abovementioned worm screw; engage and slide. - Figures 3 to 5 show, in greater detail, a pre= ferred embodiment of the hooking element 6 and
sprocket wheel 5, with the frictional portions which engage reciprocally with a pre-established degree of friction. In particular the hooking element 6 comprises a lower hook-shaped part 12 which continues with aneck portion 13 defined bylower shoulders 14 and by a circularupper shoulder 15, by means of which the sprocket wheel 5 - hooking element 6 assembly is rotary supported in thehole 7 at the bottom of the housing 4 in the carrier. - The hooking element.6 is provided with a pivot=
ing shank 16, to the side of, and parallel to which, there arefrictional elements 17; theseelements 17 are flexibly yielding and present an outercylindrical surface 18, for engaging, with a certain amount of friction, with the matching innercylindrical surface 33 of the frictional portion of thesprocket wheel 5, hereunder described with reference to figure 5. Thefrictional elements 17 are disposed at a short distance from theshank 16, present a circular segment cross-section and extend only along part of the length of the shank itself, as shown. - The
shank 16 of the hooking element presents, on its upper half, a lengthwise wedge-shaped split 19 and.lateral protrusions 20 defining stop shoulders for preventing theshank 16 from axially slipping out after assembling into thesprocket wheel 5; slopingsurfaces 21 on the up= per end of theshank 16 facilitate the insertion of the upper part of theshank 16 when fitting f into the axial hole of the sprocket wheel, as shown in figure 1. Likewise,theneck portion 13 of the hooking element 6 presents a length=wise slit 22 andsloped surfaces 23 joining to the hook-shaped part 12, in order to permit the abovementioned neck portion to yield flex= ibly during its assembling into thehole 7 of the carrier. - Lastly, 24 indicates a lateral tooth situated on the
neck portion 13 which engages withstop surfaces semi-circular protrusion 27 on the lower wall of the housing 4, as shown in figure 1 and 6. Thetooth 24 and thestop surface - Figure 5 shows the structural shape of the
sprocket wheel 5. Thissprocket wheel 5 which, likely the hooking element 6, can be molded from plastic material with a certain amount of flexibility, presents an upper part withexternal toothing 28 designed to engage with the elical toothing of the worm screw 8, and a lower orfrictional part 29. Thesprocket wheel 5 presents,more= over, anaxial hole 30 on its upper part,design= ed to receive thepivoting shank 16 of the hook= ing element 6, thehole 30 joining to an.uppercircular cavity 31 and to a lowercylindrical cavity 32 respectively, of larger diamater. The lower cavity32 defines africtional surface 33 designed to come mutually into contact with the frictional portion of the hooking element 6 defined by theelement 17. - The carrier is assembled and functions as follows: the
shank 16 of each hooking element 6 is insert= ed into thehole 30 of therespective sprocket wheel 5, and pushed in with a certain amount of force untillateral protrusions 20 on the upper end of the shank, which in the hole is a flexibly compressed, snap into therecess 31 of the sprocket wheel; in this condition, theshank 16 of the hooking element 6 is axially held by the opposing 15 and 20. - Moreover, the hooking element 6 may be rotated with respect to the
sprocket wheel 5, by over= coming a certain amount of frction due to the reciprocal engaging of thefrictional portions shaped part 12 is then inserted into thehole 7 of the carrier, using a certain amount of ef= fort due to the radial compression of theneck portion 13, until such neck portion snaps into theaforementioned hole 7; the hooking element 6 andsprocket wheel 5 assembly is thus assembled on thecarrier 2. The control rod is then insert= ed through the worm screw 8 of each single car=rier 2, regardless of the direction of the hooking elements 6 and, consequently, of each single vertical strip of the blind. In fact, in order to achieve perfect parallelism or orientation of all the strips of the blind, it is sufficient just to rotate thecontrol rod 9 in either the directions, until thestop tooth 24 of any one of the hooking elements engages arespective stop surface control rod 9 still further, the friction=al device
Claims (8)
1. Carrier for blinds with swivelling vertical strips, in which each strip of the blind is hanging from a hooking element (6) carried by a sprocket wheel (5), with the possibility of rotating on the axis of the sprocket wheel (5) itself, the latter (5) engaging with a worm screw (8) sliding along a control rod (9),and in which a frictional device is provided bet= ween the hooking element (6) and the sprocket wheel (5), characterized by the fact that the hooking element (6) presents a hook-shaped part (12) provided with a pivoting shank (16) made . of flexibly yielding material, said shank (16) being fitted in an axial hole (30) of the sprocket wheel (5), and by the fact that the hooking element (6) and the sprocket wheel (5) are formed with reciprocally engaging frictional portions (17,29).
2. - Carrier as claimed in claim 1, characterized by the fact that said frictional portions (17, 29) present cylindrical frictional surfaces (18,33) coaxial to the sprocket wheel (5).
3. - Carrier as claimed in claim 2, characterized by the fact that the frictional surface (33) on the sprocket wheel (5), is defined by a cylindrical cavity (32) in the lower portion (29) of the sprocket wheel (5), and by the fact that frictional sur= face (18) on the hooking element (6) is formed on an intermediate portion (17) of the hooking element (6)itself.
4 - Carrier as claimed in claim 3, characterized by the fact that the hooking element (6) comprises a lower hook-shaped part (12), and an intermediate portion extending with a pivoting shank (16) said intermediate portion of the hooking element (6) being provided with flexibly yielding frict= ional elements(17) spaced apart from the side of the shank (16) of said hooking element (6).
5.- Carrier as claimed in claim 4, characterized by the fact that the frictional elements (17) present a circular segment cross-section and ex= tend along part of the length of the shank (16).
6.- Carrier as claimed in Claim 1, characterized by the fact that the shank (16) of the hooking element (6) is axially splitted in its upper part, and by the fact that side protrusions (20) are provided having sloping outer surfaces (21).
7.- Carrier as claimed in claim 1, characterized by the fact that the hooking element (6) comprises an intermediate neck portion (13) shaped with outer shoulder surfaces (14, 15) and with a legnthwise slit (22) for yielding of the neck portion (13), through an assembling hole (7) in a lower wall of the carrier (2).
8. - Carrier as claimed in claim 1, characterized by the fact that the said hooking element (6) comprises a lateral tooth (24) and by the fact that the carrier (2) is provided with stop sur= faces (25,26) for the tooth (24), in diametrically opposed positions.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT4150380 | 1980-01-10 | ||
IT41503/80A IT1154153B (en) | 1980-01-10 | 1980-01-10 | TROLLEY WITH CLUTCH AND END OF STROKE ADJUSTMENT PARTICULARLY FOR ADJUSTABLE VERTICAL CURTAINS |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0032243A2 true EP0032243A2 (en) | 1981-07-22 |
EP0032243A3 EP0032243A3 (en) | 1982-01-13 |
Family
ID=11250313
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP80108231A Withdrawn EP0032243A3 (en) | 1980-01-10 | 1980-12-29 | Carrier for blinds with swivelling vertical strips |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0032243A3 (en) |
IT (1) | IT1154153B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0120566A2 (en) * | 1983-03-24 | 1984-10-03 | Hunter Douglas Industries B.V. | Vertical louvre blind and parts therefor |
DE3509064A1 (en) * | 1985-03-14 | 1986-09-25 | Syba Handels- und Vertriebs AG, Vaduz | GUIDE CARRIAGE FOR A SLATER BLINDS |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2520286A1 (en) * | 1975-05-07 | 1976-11-18 | Rigola Werk Schmidt Julius | Sliding type lamellar design curtain - has hook support system engaging in devices which are mounted in central space of slide system |
FR2333937A1 (en) * | 1975-12-03 | 1977-07-01 | Stoever Adolf Bautex Kg | TAPE BLIND |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE820976A (en) * | 1974-10-11 | 1975-02-03 | Nylon support hook for sunblind strip - with hollow worm gear drive retracting hook on rotation of driving wheel |
-
1980
- 1980-01-10 IT IT41503/80A patent/IT1154153B/en active
- 1980-12-29 EP EP80108231A patent/EP0032243A3/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2520286A1 (en) * | 1975-05-07 | 1976-11-18 | Rigola Werk Schmidt Julius | Sliding type lamellar design curtain - has hook support system engaging in devices which are mounted in central space of slide system |
FR2333937A1 (en) * | 1975-12-03 | 1977-07-01 | Stoever Adolf Bautex Kg | TAPE BLIND |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0120566A2 (en) * | 1983-03-24 | 1984-10-03 | Hunter Douglas Industries B.V. | Vertical louvre blind and parts therefor |
EP0120566A3 (en) * | 1983-03-24 | 1985-03-27 | Hunter Douglas Industries B.V. | Vertical louvre blind and parts therefor |
DE3509064A1 (en) * | 1985-03-14 | 1986-09-25 | Syba Handels- und Vertriebs AG, Vaduz | GUIDE CARRIAGE FOR A SLATER BLINDS |
Also Published As
Publication number | Publication date |
---|---|
IT1154153B (en) | 1987-01-21 |
EP0032243A3 (en) | 1982-01-13 |
IT8041503A0 (en) | 1980-01-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4685502A (en) | Multiple-glazed window assembly | |
CA1173736A (en) | Vertical blind tilt control | |
CA2213807C (en) | Combined tilt and raise control for window coverings | |
CA1313125C (en) | Electromotively driven sunblind | |
EP0680543B1 (en) | A spring clutch assembly with reduced radial bearing forces | |
AU706681B2 (en) | Bearing structure for roller shades | |
US4653127A (en) | Shower partition | |
US5267598A (en) | Window covering control apparatus and window covering assembly | |
EP1431508A2 (en) | Raising and lowering mechanism for blinds | |
US4322050A (en) | Adjustable bracket for a decorator rod | |
JPH07100989B2 (en) | Band-shaped coil spring for sash frame tension | |
EP0085877A2 (en) | Cell structure sun visor automobile vehicles including retention and snap-action positioning means | |
ES8404799A1 (en) | Venetian blind | |
US5293921A (en) | Coupling and transmission mechanism for window covering assembly | |
EP0032243A2 (en) | Carrier for blinds with swivelling vertical strips | |
US2052606A (en) | Towel rack | |
US5061091A (en) | Bearing case | |
JPH048780Y2 (en) | ||
US5921306A (en) | Venetian blind operating drum | |
US3982355A (en) | Adjustable blind structure | |
US4457351A (en) | Tilt rod support for venetian blind assembly | |
US5179990A (en) | Torque limiting drive for blinds | |
AU762176B2 (en) | Holder for a depending hollow architectural covering | |
US2498079A (en) | Tilting mechanism for venetian blinds | |
JPH01214684A (en) | Suspension system for vertical blind |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Designated state(s): DE FR GB NL |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Designated state(s): DE FR GB NL |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19821208 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: DANIELI, REMO |