EP3018282B1 - Store vénitien avec un mécanisme d'inclinaison - Google Patents

Store vénitien avec un mécanisme d'inclinaison Download PDF

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Publication number
EP3018282B1
EP3018282B1 EP15193011.2A EP15193011A EP3018282B1 EP 3018282 B1 EP3018282 B1 EP 3018282B1 EP 15193011 A EP15193011 A EP 15193011A EP 3018282 B1 EP3018282 B1 EP 3018282B1
Authority
EP
European Patent Office
Prior art keywords
tilt
cable
slats
blind
drum
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.)
Active
Application number
EP15193011.2A
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German (de)
English (en)
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EP3018282A1 (fr
Inventor
Donald E. Fraser
Richard N. Anderson
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.)
Hunter Douglas NV
Hunter Douglas Inc
Original Assignee
Hunter Douglas NV
Hunter Douglas Inc
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Publication of EP3018282A1 publication Critical patent/EP3018282A1/fr
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Publication of EP3018282B1 publication Critical patent/EP3018282B1/fr
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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
    • E06B9/32—Operating, guiding, or securing devices therefor
    • E06B9/322—Details of operating devices, e.g. pulleys, brakes, spring drums, drives
    • 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

Definitions

  • the present invention relates to a tilt mechanism for a Venetian blind. More particularly, it relates to a tilt mechanism intended to minimize the torque exerted to tilt the slats of the blind from fully open to fully closed and back to fully open.
  • a tilt mechanism intended to minimize the torque exerted to tilt the slats of the blind from fully open to fully closed and back to fully open.
  • US 5,341,865 describes a tilt roll and tilt roll mechanism for a venetian blind designed to tilt the ladder laces of a venetian blind.
  • the tilt roll body preferably has an asymmetric cross-section and is provided with bearings engaging bearings on a support and the elongate flexible cords of the ladder lace extend around at least a portion of the periphery of the body, one on each side.
  • the cords are engaged on elements integrally molded to the body and these are each adapted to be engaged by one of the cords, effective to deform and retain the cord.
  • the engaging elements may include a spike which is used to be pierced through a part of the cord, or by resiliently mounted flaps, or by radially outwardly extending jaws.
  • Means are also described for preventing the tilt roll from being rotated more than 360° and the configuration is such as to ensure that the top slat does not become retained by one of the tilt cords as the blind is moved from its closed to its open position.
  • the preferred embodiments tackle two of the main causes for imbalance between the front and rear tilt cords that are found in the prior art. By tackling these causes of imbalance, one embodiment has achieved a reduction of maximum torque of 65% or more.
  • One cause for imbalance between the front and rear tilt cables in the prior art is that, in order for the front and rear tilt cables to come close enough together to reach the fully closed position, one of the tilt cables goes slack and the other tilt cable has to carry the entire load. So, in this case, one of the tilt cables carries 100% of the load, and the other tilt cable carries none of the load.
  • a preferred embodiment of the present invention eliminates this problem.
  • a preferred embodiment of the present invention maintains the center of gravity of the slats at substantially the same elevation from the fully open position to the fully closed position in order to greatly reduce this cause of increased torque.
  • FIG. 1 is a view of a prior art blind 10 including two slats 12 with front and rear tilt cables 14, 16 respectively, and a lift cord 18.
  • the tilt cables 14, 16 are part of a "ladder tape", which includes the tilt cables 14, 16 and rungs 20. Each rung 20 is attached at its front end to the front tilt cable 14 and at its rear end to the rear tilt cable 16.
  • the front and rear tilt cables 14, 16 and plurality of parallel rungs 20 form a flexible ladder.
  • Each slat 12 rests on one of the rungs 20 of the ladder tape between the tilt cables 14, 16.
  • the slats 12 have an arcuate cross-sectional shape, with the convex surface or crown 26 facing upwardly and the concave surface 27 facing downwardly.
  • we refer to the tilt cable 14 as being the front tilt cable 14 or the room-side cable 14, and to the tilt cable 16 as being the rear tilt cable 16 or the window-side cable 16.
  • front and rear could be reversed.
  • the blind 10 is fully open.
  • the blind 10 is partially closed room-side-down.
  • the blind 10 is fully closed room side down.
  • the tilt cables 14, 16 extend downwardly from the head rail 58.
  • the front tilt cable 14 extends through the front tilt-cable rout hole 50 in the head rail 58
  • the rear tilt cable 16 extends through the rear tilt cable rout hole 52 in the head rail 58.
  • the front edge 54 of each slat 12 lies adjacent to the front end of each rung 20, and the rear edge 56 of each slat 12 lies adjacent to the rear end of each rung 20.
  • the tilt cables 14, 16 diverge outwardly as they extend from the tilt-cable rout holes 50, 52 to the ends 54, 56 of the rungs 20. This is the maximum divergence between the tilt cables 14, 16 because this is the tilt position at which the front-to-rear horizontal distance between the front and rear edges 54, 56 of the slats 12 is at a maximum.
  • Figure 1A shows the position of the slats 12 when the front and rear tilt cables 14, 16 extend vertically downwardly from the rout holes 50, 52, with each respective tilt cable 14, 16 abutting the inner edge of its respective rout hole 50, 52. In this position, the horizontal distance between the front and rear tilt cables 14, 16 is equal to the minimum distance between the rout holes 50, 52 in the head rail 58.
  • Each rung 20 extends at an upward angle from the front tilt cable 14, so the rung 20 keeps the front edge 54 of its respective slat adjacent to the front tilt cable 14 and prevents the front edge 54 of the respective slat from moving further rearwardly. Also, the crown 26 of each slat 12 is abutting the front tilt cable 14, so the front tilt cable 14 prevents the crown 26 from moving further forwardly.
  • the limiting factor is the length of the lift-cord rout opening in each of the slats, as will be explained later.
  • each of the front and rear tilt cables 14, 16 is exerting approximately 50% of the total force being exerted by both of the front and rear tilt cables 14, 16, with each cable supporting about half of the load of the slats 12 at every point from the fully open position to the partially closed position.
  • the front tilt cable 14 goes slack (See Figure 1B )
  • it stops carrying any of the load and the entire load (100%) is carried by the rear tilt cable 16.
  • This means that the torque required to rotate the tilt drum from the partially closed position of Figure 1A to the fully closed position of Figure 1B is greatly increased from the torque required to rotate the tilt drum from the fully open position of Figure 1C to the partially closed position of Figure 1A .
  • each of the front and rear tilt cables 14*, 16* exerts between 40% and 60% of the total force exerted by both the front and rear tilt cables 14*, 16* at every point throughout the entire rotation of the tilt drum from the fully open position to the fully closed position and back to the fully open position. In order to achieve that goal, this slack cord phenomenon needs to be eliminated.
  • Figures 2 , 2A , and 7A-7C show an embodiment of the present invention in which the front and rear tilt cables 14*, 16* extend in a straight line from the tilt drum 27* (See Fig. 7C ), through the rout holes 50*, 52*, to the front and rear edges of the top slat 12* when the blind is in the fully closed position, so the blind reaches the fully closed position without the front tilt cable 14* going slack and without the rear tilt cable 16* having to lift the front tilt cable 14* and the full weight of all the slats 12*.
  • This blind 10* has slats 12*, front and rear tilt cables 14*, 16*, rungs 20*, and a lift cord 18*.
  • the tilt-cable rout holes 50*, 52* in the head rail 58 are closer together than in the prior art blind 10 of Figure 1A .
  • the minimum spacing between the tilt-cable rout holes 50*, 52* is small enough, and the front and rear tilt cables 14*, 16* leave the tilt drum 28* at points that are close enough together, that the blind 10* reaches the fully closed position, with the crown 26* of each slat 12* contacting the front tilt cable 14*, when the front and rear tilt cables 14*, 16* extend in a straight line from the tilt drum 28*, out through the rout holes 50*, 52*, to the front and rear ends of the top rung 28*. Since full closure is reached without the rear tilt cable 16* having to lift the front cable 14* and the full weight of all the slats 12*, the amount of torque required to reach full closure is greatly reduced from the prior art arrangement described above.
  • the minimum distance between the front and rear rout holes 50*, 52* through which the front and rear tilt cables 14*, 16* extend should be no greater than the horizontal distance between the front and rear edges 54*, 56* of the slats 12* when the blind 10* is in the fully closed position.
  • the front and rear tilt cables 14*, 16* should leave the tilt drum 28* at points that are no farther apart than the horizontal distance between the front and rear edges 54*, 56* of the slats 12* when the blind 10* is in the fully closed position.
  • the minimum distance between the front and rear rout holes 50*, 52* in the head rail 58* (which is the distance between the front and rear tilt cables 14*, 16* in Figure 2A ), and the maximum distance between the points at which the front and rear tilt cables 14*, 16* leave the tilt drum 28* in the fully closed position, should not exceed 12.2mm (0.48").
  • FIG. 4 and Figures 7A-C show a tilt drum 28* which supports the front and rear tilt cables 14*, 16* and which is rotated to raise the rear tilt cable 16* and lower the front tilt cable 14* to close the blind 10*.
  • the tilt drum 28* is oblong in order to provide the distance between the departure points in the fully closed position as described above while still providing enough take-up and playing out of the tilt cables 14*, 16* to go from a fully open position to a fully closed position with less than 360 degrees of rotation. (In this particular embodiment, the drum rotates 180 degrees to go from a fully open to a fully closed position.) It is desirable to go from fully open to fully closed with 360 degrees of rotation or less in order to avoid overwrap and possible tangling of the tilt cables.
  • the front-to-rear horizontal distance between the departure points on the tilt drum 28* from which the front and rear tilt cables 14*, 16* depart from the tilt drum 28* and extend downwardly is not greater than the front-to-rear horizontal distance between the front and rear edges of each slat in the fully closed position.
  • front and rear tilt cables 14*, 16* extend in a straight line from the front and rear departure points 27A, 27B of the tilt drum 28*, through the rout holes 50*, 52* at the bottom of the head rail, to the top rung at the front and rear edges 54*, 56* of the top slat 12*, without being deflected by the head rail and without either of the tilt cables 14*, 16* going slack.
  • the embodiment of the tilt drum 28* shown in Figures 4a-g and 7A-C is eccentric, with the axis of rotation not being at the geometric center or centroid of the tilt drum 28*.
  • the purpose of this eccentric arrangement will be explained later.
  • the tilt drum 28* is symmetrical, so a mirror image result is obtained when the blind is tilted closed room side down, by rotating the tilt drum in a first direction which raises the rear tilt cable 16* and lowers the front tilt cable 14*, from when the blind is closed room side up, by rotating the tilt drum 28* in the opposite direction, which raises the front tilt cable 14* and lowers the rear tilt cable 16*
  • the tilt drum diameter was made as large as possible in order to prevent a noticeable drop in the Center of Gravity (CoG) of each of the slats due to the geometry of the slats and the geometry of the rungs supporting the slats as the blind is being closed, in order to make it easier to open the slats, as discussed in more detail below.
  • CoG Center of Gravity
  • a large diameter tilt drum creates a slack cord problem.
  • FIGS 3a-3g and Figures 9 and 10 show such a small diameter circular cross-section tilt drum 28', which rotates about an axis located at the geometric center or centroid of the circle.
  • the diameter of this drum 28' is small enough that the front and rear tilt cables 14, 16 extend in a straight line from the drum 28' to the front and rear edges of the slats 12 when the blind is in the fully closed position. It can be seen in these figures that, as the drum 28' rotates from the fully open position to the fully closed position, the center of gravity of the slat 12 drops noticeably.
  • the slat 12 is in the fully open position, with the front edge 54 and rear edge 56 of the slat 12 at the same elevation.
  • the front tilt cable 14 extends a distance H from the front edge 54 of the slat 12 to its point of departure from the tilt drum 28' (which is at the same elevation as the point of departure of the rear tilt cable 16).
  • the rear tilt cable 16 extends a distance H from the rear edge 56 of the slat 12 to its point of departure from the tilt drum 28'.
  • An imaginary vertical line ⁇ extends from the point of departure of the front tilt cable 14 (approximately at the height of the axis of rotation of the drum), down to the rung 20.
  • Figure 10 shows the drum 28' rotated counterclockwise from the position of Figure 9 to the fully closed position.
  • the front cable 14 has moved down a distance R
  • the rear tilt cable 16 has moved up the same distance R
  • the vertical distance of the front tilt cable 14 from the point of departure to the front edge 54 of the slat 12 is (H+R)
  • the vertical distance from the point of departure of the rear tilt cable 16 to the rear edge 56 of the slat 12 is (H-R).
  • the vertical distance from the heights of the points of departure to the center of gravity of the slat 12 and to the center of the rung 20 is the average of those two distances, which is H. Since the length of H is greater than the length of ⁇ , the center of gravity of the slat 12 has dropped by an amount equal to H- ⁇ .
  • FIG. 3a-g The dropping of the center of gravity as the tilt drum rotates is shown in Figures 3a-g .
  • a first imaginary horizontal line 42 in Figures 3a-g extends between the axes of rotation of the cylindrical tilt drums 28'.
  • a second imaginary horizontal line 32 extends rightwardly from the center of gravity of the top slat 12 in Figure 3a .
  • An imaginary curve 32* extends between the centers of gravity of the top slats 12 in Figures 3a-g to show that the center of gravity of the slats 12 moves downwardly as the slats 12 pivot from the fully open position of Figure 3a to the fully closed position of Figure 3g .
  • the tilt drum 28* of Figures 4a-g and 7A-7C is oblong in order to provide the desired small distance between the departure points of the front and rear tilt cables 14*, 16* when the blind is in the fully closed position, in order to prevent the slack cord problem, while still providing enough take-up of the cord to go from the fully open position to the fully closed position in 360 degrees or less of rotation of the tilt drum.
  • the tilt drum 28* has an axis of rotation 42 that is offset from the centroid 43 of the cross section of the drum in order to keep the center of gravity of each slat 12 nearly constant throughout the complete rotation of the tilt drum from the fully open position to the fully closed position and back to the fully open position.
  • the departure points 27A, 27B from which the front and rear tilt cables 14*, 16* leave the tilt drum 28* when the blind is in the fully closed position are spaced apart a horizontal distance that is no greater than, and preferably close to equal to, the front-to-rear horizontal distance between the front and rear edges of each slat when the blind is in the fully closed position, so that the front and rear tilt cables 14*, 16* extend in a straight line from the tilt drum 28*, through the rout holes 50*, 52*, to the front and rear edges 54*, 56*, respectively, of the top slat 12* (and to the front and rear ends of the top rung 20*) when the blind is in the fully closed position, without either tilt cable 14*, 16* being deflected by the head rail or going slack.
  • the axis of rotation 42 of the tilt drum 28* is offset from the centroid 43 of the cross section of the tilt drum by a distance d.
  • the axis of rotation 42 is a distance d above the centroid 43 of the cross section of the tilt drum 28* when the drum 28* is in the fully open position shown in Figure 7A .
  • the axis of rotation 42 of the tilt drum 28* is a distance d below the centroid 43. This arrangement ensures that the lift cable that is being raised to rotate the slats to the closed position travels a greater distance than the lift cable that is being lowered.
  • the tilt drum 28* rotates 180 degrees from the fully open position to the fully closed position.
  • the tilt drum 28* of Figure 7A is being rotated counterclockwise to raise the rear tilt cable 16* to close the blind
  • the rear tilt cable 16* travels the distance travelled by the front tilt cable 14* plus 2d.
  • the offset distance d preferably is one-half of distance the center of gravity would have dropped if the center of rotation 42 were at the centroid 43.
  • the center of gravity of the slats is also maintained at a constant level if the blind is closed by rotating the tilt drum clockwise from the position of 7A in order to close the blind by raising the front tilt cable 14* and lowering the rear tilt cable 16*.
  • FIG 6 is a perspective view of the eccentric, oblong tilt drum 28*.
  • the tilt drum 28* includes a member 33 which defines a surface 34 having an oblong cross-section with an elongated direction and defining first and second ends 35, 37 that are opposite each other in the elongated direction.
  • the elongated direction of the tilt drum 28* will be referred to as the major axis 60 of the tilt drum 28*, and the other axis, which is perpendicular to the major axis 60, will be referred to as the minor axis 62 of the tilt drum 28*. Where those two axes 60, 62 intersect is the geometric center or centroid of the cross-section of the drum 28*.
  • Two tilt-cable-anchor points 36, 38 lie adjacent to the first end 35.
  • a shaft 40 is eccentrically mounted to the member 33, having an axis of rotation 42 that is offset from the geometric center or centroid of the oblong cross-section of the surface 34 toward the second end 37. This puts the axis of rotation 42 offset above the centroid of the drum 28* when the blind is in the fully open position of Figure 7A .
  • the member 33 is mounted for rotation with the shaft 40 about the axis of rotation 42.
  • the shaft 40 of the exemplary embodiment of the Figures is hollow and defines a non-circular internal cross-sectional profile 44 designed to engage a tilt rod (not shown) which, in this embodiment, is manually driven by the user for rotation about the axis of rotation 42, such as by using a tilt wand or a tilt cord (not shown), which are well-known in the art.
  • the tilt rod could alternatively be driven by a motor, if desired, as known to those of ordinary skill in the art.
  • Figure 5 shows two flanges 46, 48 at the front and rear edges of the member 33 and having radii larger than the radial dimension to the two anchor points 36, 38. These flanges 46, 48 guide the tilt cables 14*, 16*, to prevent the tilt cables 14*, 16* from falling off the oblong surface 34 as they wrap onto and off of the drum 28*.
  • the orientation of the drum 28* when the blind 10* is in the fully open position shown in Figures 4a and 7A is with the two tilt-cable-anchor points 36, 38 below the axis of rotation 42, as shown in Figures 5 and 6 .
  • the front tilt cable 14* is routed through its corresponding tilt-cable rout opening 50* in the head rail, up and over the drum 28*, and is attached to the rear side tilt-cable-anchor point 38 (See Figures 6 and 7A ).
  • the rear tilt cable 16* is routed through its corresponding tilt-cable rout opening 52* in the head rail, up and over the drum 28*, and is attached to the front side tilt-cable-anchor point 36.
  • the combination of the oblong shape of the tilt drum 28* and its eccentric mounting provide the desired conditions, keeping the center of gravity of the slats constant from the fully open position to the fully closed position, and preventing a slack cable condition.
  • the blind 10** is similar to the blind 10* of Figures 7A-7C , except that the slats 12** are flat, rectangular slats with each slat 12** having a substantial thickness. In this instance, the slats 12** have no concave side, no convex side, and there is no crown (like the crown 26* of the slat 12* of Figure 2 ).
  • Each slat 12** defines an elongated lift-cord rout opening 64 having a front end 66 and a rear end 68. The lift cord 18** extends through the lift-cord rout opening 64 of each slat 12**.
  • the same desired conditions apply to this type of blind as to the previous type with thin, arcuate slats.
  • the minimum distance between the rout holes should not be greater than the front-to-rear horizontal distance between the front and rear edges of the slats 12** when the blind is in the fully closed position.
  • the front and rear points from which the front and rear tilt cables 14**, 16** leave the tilt drum when the blind is in the fully closed position should be no greater than and preferably nearly equal to the front-to-rear horizontal distance between the front and rear edges of the slats 12** so the front and rear tilt cables 14**, 16** can extend in a straight line from the tilt drum, through the rout holes, to the front and rear edges of the slats 12** without either tilt cable 14**, 16** having to lift the other tilt cable 14**, 16** (i.e. without either tilt cable 14**, 16** becoming slack) in order to bring the blind to the fully closed position.
  • the head rail could be installed in an inverted position so that the bottom of the head rail provides a single, large opening, in which case no rout holes would be needed in the head rail for the front and rear tilt cables or the lift cords.
  • All directional references are only used for identification purposes to aid the reader's understanding of the present disclosure, and / or serve to distinguish regions of the associated elements from one another, and do not limit the associated element, particularly as to the position, orientation, or use of this disclosure.
  • Connection references e.g., attached, coupled, connected, and joined
  • Identification references are not intended to connote importance or priority, but are used to distinguish one feature from another.

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

Claims (7)

  1. Store vénitien, comprenant :
    un rail supérieur présentant une base ;
    un tambour d'inclinaison rotatif (28*) dans ledit rail supérieur ;
    un câble d'inclinaison avant (14*) s'étendant dudit tambour d'inclinaison (28*) en sortant par la base dudit rail supérieur, et s'étendant vers le bas depuis ledit rail supérieur ;
    un câble d'inclinaison arrière (16*) s'étendant dudit tambour d'inclinaison (28*) en sortant par la base dudit rail supérieur, et s'étendant vers le bas depuis ledit rail supérieur ;
    une pluralité de barreaux espacés (20*), comprenant un barreau supérieur, chacun desdits barreaux (20*) étant fixé à une extrémité de barreau avant au câble d'inclinaison avant (14*) et à une extrémité de barreau arrière au câble d'inclinaison arrière (16*) ; et
    une pluralité de lames allongées (12*), chacune desdits lames (12*) définissant une direction de lame de gauche à droite et chaque lame (12*) présentant un bord avant et un bord arrière, et chaque lame (12*) reposant sur un desdits barreaux (20*), avec le bord avant de chaque lame (12*) situé de manière adjacente audit câble d'inclinaison avant (14*) et le bord arrière de chaque lame (12*) situé de manière adjacente audit câble d'inclinaison arrière (16*) ; caractérisé en ce que :
    lesdits câbles d'inclinaison avant et arrière (14*, 16*) sont fixés audit tambour d'inclinaison rotatif (28*) et s'étendent vers le bas, à distance dudit tambour d'inclinaison (28*) au niveau de points de départ avant et arrière, respectivement, lorsque ledit store est en position complètement fermée, les points de départ avant et arrière étant espacés d'une distance horizontale d'avant en arrière qui n'est pas supérieure à la distance horizontale d'avant en arrière entre les bords avant et arrière des lames (12*) ; et
    ledit tambour d'inclinaison rotatif (28*) présente une surface extérieure avec une section transversale oblongue définissant un centroïde, et est monté en vue d'une rotation autour d'un axe de rotation qui est décalé dudit centroïde, ledit axe de rotation étant décalé à un niveau d'élévation plus haut que ledit centroïde lorsque ledit store est en position complètement ouverte de manière que le tambour d'inclinaison (28*) est tourné pour incliner les lames (12*) vers une position complètement fermée, les câbles d'inclinaison avant et arrière (14*, 16*) s'étendant tous deux en une ligne droite dudit tambour d'inclinaison (28*), en sortant par la base du rail supérieur, au barreau supérieur, sans être déviés par le rail supérieur et sans qu'aucun des câbles d'inclinaison (14*, 16*) ne soit lâche.
  2. Store tel que décrit dans la revendication 1, dans lequel ledit tambour d'inclinaison (28*) tourne de pas plus de 360 degrés pour faire tourner les lames (12*) de la position complètement fermée à une position complètement ouverte.
  3. Store tel que décrit dans la revendication 1 ou 2, dans lequel la base dudit rail supérieur définit les trous d'acheminement des câbles d'inclinaison avant et arrière définissant une distance horizontale minimale d'avant en arrière entre les trous d'acheminement des câbles d'inclinaison avant et arrière.
  4. Store tel que décrit dans la revendication 3, dans lequel la distance horizontale minimale d'avant en arrière entre les trous d'acheminement des câbles d'inclinaison avant et arrière n'est pas supérieure à la distance horizontale d'avant en arrière entre les bords avant et arrière de chaque lame (12*) lorsque le tambour d'inclinaison (25*) est tourné pour incliner les lames (12*) vers une position complètement fermée.
  5. Store tel que décrit dans la revendication 1, dans lequel ledit axe de rotation est parallèle à la direction allongée desdites lames (12*).
  6. Store tel que décrit dans l'une quelconque des revendications précédentes, dans lequel chacune desdites lames (12*) définit un centre de gravité, et dans lequel le centre de gravité de chacune desdites lames (12*) demeure sensiblement au même niveau d'élévation tandis que le tambour d'inclinaison (28*) est tourné d'une position complètement ouverte à la position complètement fermée.
  7. Store tel que décrit dans l'une quelconque des revendications précédentes, dans lequel lesdits câbles d'inclinaison avant et arrière (14*, 16*) exercent ensemble une force totale lorsque la rotation desdites lames (12*) de la position complètement ouverte à la position complètement fermée et de nouveau à la position complètement ouverte, et chacun desdits câbles d'inclinaison avant et arrière (14*, 16*) exerce entre 40 % et 60 % de la force totale exercée à chaque point de la position complètement ouverte à la position complètement fermée et de nouveau à la position complètement ouverte.
EP15193011.2A 2014-11-04 2015-11-04 Store vénitien avec un mécanisme d'inclinaison Active EP3018282B1 (fr)

Applications Claiming Priority (1)

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US201414074688A 2014-11-04 2014-11-04

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EP3018282A1 EP3018282A1 (fr) 2016-05-11
EP3018282B1 true EP3018282B1 (fr) 2018-07-04

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EP15193011.2A Active EP3018282B1 (fr) 2014-11-04 2015-11-04 Store vénitien avec un mécanisme d'inclinaison

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Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5139073A (en) * 1991-04-08 1992-08-18 Springs Window Fashions Division, Inc. Tape drum for a venetian blind tilt assembly
US5341865A (en) * 1992-02-07 1994-08-30 Hunter Douglas Inc. Tilter mechanisms for a venetian blind
US6622770B1 (en) * 2002-03-20 2003-09-23 Ita, Inc. Tape drum for venetian type blinds

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

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