EP2006482A2 - Venetian blind - Google Patents

Abstract

The blind has lamellas (2) at longitudinal sides of the blind over a hinge connection and connected with textile carrier elements. The hinge connection is formed between a retaining element (5) and a fastening element (6), where the retaining element is fixedly connected with the lamellas. The fastening element is firmly connected with the carrier elements. The carrier elements are transversely guided into a region of the fastening element relative to a lifting device in a section wise manner. The carrier elements are formed of two supporting cables (12, 13).

Description

The invention relates to a Rafflamellenstore, wherein the lamellae are connected at their longitudinal sides via articulated joints with particular textile support elements, wherein at least one articulated connection between a rigidly connected to the lamella holding element and a fixedly connected to the support member fastener is formed.

Generic Rafflamellenstores are for example from the DE 38 19 920 as well as the EP 0 770 031 B1 known. In these known Rafflamellenstores the hinge connection between the element and the lamella each have a ball joint, on the one hand to achieve horizontal pivotability of the slats relative to the support band for tilt adjustment of the slats and on the other hand to allow rotation of the fastener relative to the slats to order to achieve a small package height with a gathered store.

Furthermore, from the German utility model DE 88 16 593 U1 a generic Rafflamellenstore known, in which the articulated connection between the support member and the lamella has a Einachsgelenk for horizontal Verschenkbarkeit the lamella with respect to the fastener tape known.

The Rafflamellenstores known from the prior art has in common that the fastener, regardless of the type of acting between the support member and the blade hinge connection, the support element encloses all sides, ie the support element occurs with lowered Venetian blind in the elevator direction through the fastener. In order to achieve a low package height and an orderly tape laying now when the curtain is mounted, it has been customary to rotatably support the fastener about a normal to the longitudinal edges of the slats rotation axis, so that the fastener when shirring the store turns 90 ° and the support element in the region of the fastening element, in the case of a gathered store, lies substantially parallel to the longitudinal edges of the slats and runs in a loop shape between two fastening elements.

Based on this prior art, it has the object of the invention to provide a generic Rafflamellenstore, on the one hand is inexpensive to produce, has a low packet height when the curtain is mounted, allows targeted banding with raised curtain and also represents a robust solution.

This is achieved in accordance with a first exemplary embodiment of the invention, in which at least one support element in the region of the fastening element is guided obliquely at least in sections relative to the direction of the lift when the Rafflamellenstore is lowered. According to innovation, therefore, the mutual fixing of the support element with the fastening element takes place in such a way that the support element runs differently oriented with lowered Rafflamellenstore in the region of the fastener at least over a section to the elevator direction.

Characterized in that the support element in the region of the fastening element extends at least partially differently oriented to the elevator direction and is guided obliquely, it is ensured depending on the rigidity of the preferably textile support element that the support element rests when shirring the store in a defined direction. On the one hand, this narrow banding achieves a small package height when the store is gathered and, on the other hand, it ensures that the support element does not lay between the individual slats during the gathering of the store.

Although the invention is applicable regardless of the type of connection of the fastener with the support member, according to a further embodiment results in a structurally simple solution when the fastener surrounds the support member on all sides, with a mechanical assembly of the fasteners is achieved on the support elements in a simple manner when the fastening element is made of plastic and molded directly onto the support element, whereby the production costs can be kept correspondingly low. In other words, the fastening element is formed by a molded plastic part through which the support element passes, wherein according to a further embodiment of the invention, at least one support element with respect to the elevator direction exits from the inside at a non-zero angle from the fastening element with lowered Rafflamellenstore ,

As a lowered Rafflamellenstore is understood in the context of the invention, at least partially lowered Rafflamellenstore, wherein the support element extends approximately taut in the lowered area of Rafflamallenstores.

By different orientations of the support element within the fastener targeted banding can be achieved in different directions. Runs the fastener tape within the fastener in an imaginary to the lowered Rafflamellenstore, imaginary main plane parallel, depending on the gewiegen angle, which encloses the support element with the elevator direction, the loop-shaped band laying at collared store defined in a plane parallel to the imaginary main plane Rafflamellenstores level ,

Runs the fastener in the fastener in a plane formed by the lowered Rafflamellenstore, imaginary main plane normal and parallel to the elevator plane, is ensured by the oblique guidance of the support element within the fastener that the support element loosens when collecting the store from the slats, whereby pinching the support element between the individual slats can be ensured.

In order to achieve both a targeted band laying in a plane parallel to the main plane of the Rafflamellenstores while ensuring at the same time that the support element does not lie between the individual slats, according to a preferred embodiment of the invention further provided that the inclined portion of the support element in a Cartesian axis system in which the z axis corresponds to the elevator direction and the zy plane is parallel to the imaginary main plane formed by the lowered external blind, both when projecting onto the xz plane and onto the yz plane with the z axis includes an angle other than zero, wherein it has proved to be favorable if the or the included by the inclined portion of the support member and the elevator direction angle between 10 ° and 90 °, preferably between 25 ° and 75 °, lies or lie.

Although it would be conceivable in principle to form the fastening element, for example spherical, is provided according to a further embodiment of the invention that the fastening element has an upper side, a lower side and a lateral surface connecting the upper side with the underside and the support element based on the top or bottom exits the fastening element from below at an angle β different from 90 °. Although it does not matter whether the fastener is formed as a regular polyhedron, attempts by the applicant have shown that a cuboid or cube-shaped design of the fastener is particularly advantageous.

According to a further embodiment variant of the invention, it is provided that at least one support element exits laterally from the fastening element with the outer blind extending substantially parallel to the elevator direction, whereby on the one hand the fastening elements can have a low profile and on the other parallel to the main plane of the Rafflamellenstores Binding is favored from the outset.

In terms of a cost-effective and mechanically easy to produce solution is further provided that the holding element of a preferably. U-shaped metal clip is formed with a rod-shaped section.

A further embodiment of the invention provides that at least one fastening element is pivotally connected to a lamella via exactly one single-axis joint, wherein a structurally simple solution is achieved if the single-axis joint is a hinge joint, wherein the pivot axis extends substantially parallel to the lamella longitudinal direction.

In this case, a preferred embodiment of the invention provides that the joint socket of the single-axis joint is formed in one of the side surfaces of the lateral surface. A practicable solution is achieved when the joint socket is designed as a mouth opening, by means of which the fastening element can be snapped on a rod-shaped portion of the holding element.

The fact that the fastener is pivotally connected via a hinge joint with the rigidly connected to the lamella holding member, the horizontal Pivoting the slats relative to the support member allows while the oblique guidance of the support element in the fastener ensures a targeted bandage, so that due to the invention, a pivoting of the fastener to a normal to the longitudinal edges of the slats rotation is no longer necessary. As a result, a much more stable solution with a long service life is achieved compared to the prior art.

A further embodiment of the invention provides that the height of the fastening element relative to the direction of lift is at least the same size, preferably smaller, than the height of a lamella with the external blind lowered, wherein a material-saving and gentle solution is achieved when the height of the fastening element less than 4.2 mm, preferably about 3.5 mm.

So had in the previously known Rafflamellenstores the fasteners are rotated when shirring the store to allow a lateral looped banding and on the other hand, a small package height, the invention achieves these two effects on the one hand by the oblique guidance of the support element and on the other hand by a fastener low height.

An alternative embodiment of the invention provides that at least one articulated connection has a ball joint, wherein the joint socket is formed on the fastening element rigidly connected to the support element, whereby a particularly simple assembly of the individual parts of the articulated connection is achieved on the lamellae. According to a first embodiment, it is provided that the condyle is formed directly on the holding element rigidly connected to the lamella. Alternatively, however, the articulated connection can also have a connecting element on which the joint head is formed, wherein the connecting element is detachably connected or connected to the retaining element.

In this alternative embodiment, it has been found to be advantageous if the connecting element can be connected or connected to the holding element via a hinge joint. Preferably, it is provided that the connecting element has on its the joint head for the ball joint opposite end of a mouth opening, by means of the Connecting element can be snapped onto a rod-shaped portion of the holding element.

Although the invention is applicable to all types of support elements, according to a further embodiment of the invention, it is provided that at least one support element is formed by a strap having a rectangular cross-section, while according to another embodiment of the invention is provided that at least one support element of a support cable is formed with a circular or elliptical cross section.

In particular, in one embodiment according to a combination of claims 9, 11 and 15, it has been found to be particularly advantageous if at least one support element is formed by two parallel support cables with circular or elliptical cross-section, wherein the two support cables in passing through the one fastener cross.

Further advantages and details of the invention will be explained in more detail with reference to the following description of the figures with reference to the exemplary embodiments illustrated in the drawing,

It shows

Fig. 1a-1c

a first embodiment of the invention in an exploded view, in the assembled state and a cross section through the fastener,

Fig. 2a and 2b

A second embodiment of the invention in a perspective view and a cross section through the fastener,

Fig. 3a-3c

1 shows another embodiment of the invention in an exploded view in the assembled state and in a side view,

Fig. 4a-4d

a further embodiment of the invention, in which the support element is formed by two support cables, in an exploded view, in the assembled state and a section through the fastening element,

Fig. 5a-5c

an embodiment of the invention, in which the support elements emerge laterally from the fastening element, in an exploded view and in the assembled state,

Fig. 6a and 6b

a partial view of a Rafflamellenstores invention in the shirred state in a perspective and a side view,

Fig. 7a and 7b

schematically the oblique course of the support element when passing through a fastener,

Fig. 8

a double obliquely guided portion of a support element in a Cartesian axis system and

Fig. 9

a partial view of the embodiment according to Fig. 6c ,

In the in the Fig. 1a to 1c illustrated embodiment, the support member 4 is formed as a textile fastener tape on which the fastener 6 is molded directly. The articulated connection 3 between the fastening element 6 and the holding element 5 connected rigidly to the lamella 2 is formed by a single-axis hinge designed as a hinge joint. Concretely, the fastening element 6 on its side of the lamella 2 associated with a mouth opening 10, by means of which the fastening element 6 on a rod-shaped portion B of the holding element 5 can be snapped. In contrast to the hitherto known articulated joints, which generally have at least two differently oriented axes of rotation, it is sufficient in the invention when the articulated joint 3 has only one axis of rotation a, which of course a greater stability of the articulated joint 3 is achieved.

This is made possible by the inventive guide of the support member 4 when passing through the fastener 6. In particular Fig. 1a which represents a cross section through the fastening element 6 normal to the longitudinal side of the lamella 2, it can be seen that the support element 4 is obliquely guided with lowered Rafflamellenstore, ie in the tensioned state of the support element in the region of the fastening element 6 to the elevator direction R. In other words, the sections run. A, A 'in the region of the fastening element 6 differently oriented from the elevator direction R.

Due to the oblique guidance of the support element 4 when passing through the fastening element 6 is achieved in combination with the material property of trained in this embodiment, as a carrier tape support member 4, which places the support element 4 in a defined direction when shirring the store. This defined position of the fastener tape 4 'is in Fig. 1a shown in dashed lines and is chosen in this embodiment so that the support element 4 of the formed by the lowered Rafflamellenstore, imaginary main plane loops forward, whereby a pinching of the support element 4 'between the slats 2 can be safely avoided.

That in the Fig. 2a and 2b illustrated embodiment differs from the embodiment according to Fig. 1 merely in that the support element 4 is no longer guided parallel to the imaginary main plane of the Rafflamellenstores but normal to this as in the first embodiment. How out Fig. 2a can be seen, the support member 4 in the region of the fastener 6 again two oblique sections A, A ', so that the support member 4 when shirring the store, in turn, the defined position shown in dashed lines occupies. The cutting plane runs at the Fig. 2a parallel to the imaginary main plane of the Venetian blind, ie, that the support element 4 in the embodiment according to Fig. 2 when shirring the store laterally along the longitudinal edges of the slats 2 sets. The horizontal pivotability of the blade 2 relative to the support member 4, which is required for an adjustment of the slats 2, in turn, is ensured by the hinge joint with the axis of rotation a.

Another embodiment of the invention is in the Fig. 3a to 3c shown. In this embodiment, the leadership of the fastener tape 4 by the fastener 6 according to the embodiment 2. From the embodiment 2, this embodiment differs by the type of hinge connection between the fastener 6 and the blade 2. In this case, the hinge joint 3, a connecting element 7 with a joint head 8 and a mouth opening 10. The holding elements 5 is clamp-shaped and has a rod-shaped portion B. The holding elements 5 is shot or otherwise secured in the crimped side edge of the slat 2, so that the rod-shaped central portion B protrudes far enough to allow the clipping or snapping the connecting element 7 via the mouth opening 10 on the rod-shaped portion B. The rod-shaped section B and the Mouth opening 10 thus together form a hinge joint with the axis of rotation a, whereby the horizontal pivotability of the slat 2 is ensured. The articulated connection between the connecting element 7 and the fastening element 6 is ensured in this embodiment via a ball joint, wherein the condyle 8 is assigned to the connecting element 7, while the joint socket 9 is formed on the fastening element 6.

The ball joint thereby ensures the rotatability of the support element 4 and the axis of rotation b, whereby the substantially parallel to the longitudinal edges of the slats 2 taking place lateral laying of the fastener tape, which is already predefined due to the oblique guidance of the fastener tape in the fastener 6, additionally supported ,

Due to the displacement of the condyle 8, which is experience exposed to the greatest stresses on the connecting element 7 is achieved in combination with the detachable connection of the connecting element 7 with the holding element 5, the replaced in a broken or otherwise damaged joint 3, the connecting element can be, resulting in. significantly extend the life of the Rafflamellenstores.

A preferred embodiment of the invention is in the Fig. 4a to 4d shown. In this case, the support element 4 is formed by two support cables 12, 13, which are encapsulated by the one fastening element 6. The articulated connection 3 between the fastening element 6 and the holding element 5 rigidly connected to the lamella 2 is again formed by a single-axis hinge.

In contrast to the known from the prior art Rafflamellenstore can be dispensed in the invention on a pivoting of the fastener 6 relative to the blade 2 to a normal main plane of the Rafflamellenstores normal axis of rotation. This is achieved by the particular from Fig. 4a and 4b apparent renewal of leadership of the support cables 12, 13 in the region of the fastening element. 6

While in the previously known Rafflamellenstores the support elements straight, ie in the elevator direction R, were performed by the fastener 6, sees the Invention before, at least partially obliquely lead the support cables 12, 13 in the region of the fastening element 6. In the embodiment shown, the support cables 12, 13 intersect when passing through the fastening element 6 in a plane, whereby the in Fig. 4a again shown in dashed lines defined position of the support cables 12 ', 13' is achieved when shirring the store.

A particularly preferred embodiment of the invention is in the Fig. 5a to 6b shown. In this embodiment, the support member 4 is again formed by two support cables 12, 13 of the embodiment according to Fig. 4 this embodiment differs in that the support cables 12, 13 laterally emerge from the fastening element 6. In addition, the support cables 12, 13 intersect when passing through the fastening element 6 in two different planes. That is, the coming from the top left support cable 12 occurs on the left side of the fastener 6 further back, .dh the longitudinal edge of the lamella closer, in the fastener, passes through the fastener substantially transversely to the elevator direction R and passes on the right side further forward lying out of the side surface of the fastener and extends to the bottom right. Correspondingly, the supporting cables 13 coming from the top right on the right side of the fastening element continue to enter behind them, the fastening element 6 also passes substantially normal to the direction of movement R and leaves the fastening element on the left side further ahead and subsequently continues bottom left. That is, the support cables 12 and 13 intersect within the fastener in two ways, namely from right to left as well as from front to back.

By this two-time crossing of the supporting cables 12, 13 when passing through the fastening element 6, on the one hand, it is ensured that the supporting cables 12, 13 when shirring the outer blind are substantially parallel to the imaginary main plane of the Rafflamellenstores and forward, ie pointing away from the Rafflamellenstore, set, which in addition to a lateral, loop-shaped banding ensures that the support cables 12, 13 can not place between the slats when shirring.

Fig. 6a and 6b show the embodiment according to Fig. 5 in a shirred state in a perspective and a cross section, in particular off Fig. 6a the advantageous banding, which is achieved with the invention, can be seen.

Fig. 7a shows in a side view schematically how the support cables 12 and 13 in the embodiment according to Fig. 6 are passed through the fastener 6, while Fig. 7b the course of a trained as a carrier tape support member 4 when passing through the fastener 6 shows.

Out Fig. 7b it can be seen that the support element 4 is guided obliquely when passing through the fastening element 6 via a portion A, wherein the obliquely guided portion A with the elevator direction R forms an angle α. Furthermore, that is in Fig. 7b shown fastening element substantially in the form of a polyhedron and has a top 14, a bottom 15 and the top 14 with the bottom 15 connecting lateral surface 16, wherein the support member 4 relative to the top 14 and bottom 15 from the inside under one of 90 ° different exit angle β emerges from the fastener 6,

Fig. 8 shows a Cartesian axis system, in which the z-axis of the elevator direction R corresponds and the yz plane E "parallel to the imaginary main plane formed by the lowered Rafflamellenstore runs .. The dotted line drawn dice represents the fastener.

The section A of the support element 4 is twice diagonally guided in the region of the fastening element shown as a unit cube. That the projected in the projection direction P 'on the xz plane E' section A 'includes with the z-axis and thus with the elevator direction R a non-zero angle α' a. The same applies to the section A "projected onto the yz plane E", which includes an angle α "with the direction of the elevator R.

As already in connection with the description of the embodiment according to Fig. 5 mentioned, a particularly advantageous band placement is achieved in such a leadership of the support cable.

Not least by the fact that the support elements 4 emerge laterally from the fastening element 6, there is a further advantage of the invention, which in the Fig. 9 is shown. Was it in the previously known Rafflamellenstores for a secure and stable attachment of the fastener 6 on the support member 4 necessary that the fastener 6 in the longitudinal direction of the support member 4 has a corresponding longitudinal extension, whereby rotation of the fastener 6 when shirring the store was required to a to achieve correspondingly low package height is achieved in the invention by the novel leadership of the support elements 4 in the fastener 6 in combination with the lateral exit thereof from the fastener 6, that the fastener 6 in the longitudinal direction of the support member 4 may have a low overall height.

As in Fig. 9 shown, the relation to the elevator direction R height H of the fastener 6 is smaller than the height h of the lamella 2, wherein the height h of the lamella 2, the distance between the support point of the lamella on the underlying lamella in the package and the support point for in the Package arranged above lamella is called; Since the fastener does not rotate during lowering or shirring of the store, the height of the fastener relative to the direction of lift does not change, whereas in the prior art due to the rotation of the fastener the height of the fastener relative to the elevator direction is lowered or shirred is different.

The illustrated embodiments of a Rafflamellenstores, in which the lamellae are fastened via articulated joints on support elements, are of course not to be understood in a limiting sense, but just a few examples of numerous possibilities, the inventive idea of a Rafflamellenstores, in which the support elements when passing through fasteners obliquely are to realize.

Claims (15)

Rafflamellenstore, in which the lamellae are connected at their longitudinal sides via articulated joints with particular textile support elements, wherein at least one articulated connection between a rigidly connected to the lamella holding element and a fixedly connected to the support member fastening element is formed, characterized in that with lowered Rafflamellenstore (1 ) at least one support element (4) in the region of the fastening element (6) is at least partially obliquely guided relative to - lift direction (R). Rafflamellenstore according to claim 1, characterized in that the support element (4) with lowered Rafflamellenstore (1) in the region of the fastening element (6) at least over a first section (A) to the elevator direction (R) extends differently oriented. Rafflamellenstore according to claim 1 or 2, characterized in that the fastening element (6) surrounds the support element (4, 4 ') on all sides. Rafflamellenstore according to claim 3, characterized in that the fastening element (6) made of plastic and molded directly onto the support element (4, 4 '). Rafflamellenstore according to claim 3 or claim 4, characterized in that with lowered Rafflamellenstore at least one support element (4) with respect to the elevator direction (R) from the inside under a non-zero angle (α, α ') from the fastening element (6) emerges. Rafflamellenstore according to one of claims 1 to 5, characterized in that the inclined portion. (A) of the support element (4, 4 ') in a Cartesian axis system, in which the z-axis of the elevator direction (R) corresponds and the zy plane parallel to the imaginary formed by the lowered Venetian blind main plane, both in projection on the x-z plane as well as the yz-plane with the z-axis includes a non-zero angle (α, α '). Rafflamellenstore according to one of claims 1 to 6, characterized in that the (the) of the inclined portion (A) of the support element (4, 4 ') and the elevator direction (R) enclosed angle (α, α') between 10 ° and 90 °, preferably between 25 ° and 75 °, lies or lie. Rafflamellenstore according to one of claims 1 to 7, characterized in that the fastening element has an upper side (14), a lower side (15) and a lateral surface (16) connecting the upper side (14) with the underside (15) and the supporting element (4 ) on the top or bottom of the inside at a different angle of 90 ° (β) from the fastener (6) emerges. Rafflamellenstore, in which the lamellae are connected at their longitudinal sides via joints with particular textile support members and at least one hinge connection between a rigidly connected to the lamella holding element and a fastener is formed, wherein the fixedly connected to the support member fastener a top, a bottom and a has the upper side with the underside connecting lateral surface and the support element encloses substantially on all sides, in particular according to one of claims 1 to 7, characterized in that at least one support element (4) with lowered Venetian blind (1) laterally from the substantially parallel to the elevator direction ( R) extending lateral surface (16) from the fastening element (6) emerges. Rafflamellenstore, in which the lamellae are connected at their longitudinal sides via articulated joints with particular textile support members and at least one hinge connection between a rigidly connected to the lamella holding element and a fastening element is formed, wherein the fastening element encloses the support element substantially on all sides, in particular according to one of the claims 1 to 9, characterized in that on the elevator direction (R) related height (H) of the Fastening element (6) with lowered Venetian blind (1) at most equal to, preferably smaller, than the height (h) of a lamella (2). Rafflamellenstore according to claim 10, characterized in that the height of the fastener is less than 4.2 mm, preferably about 3.5 mm. Rafflamellenstore according to one of claims 1 to 11, characterized in that at least one support element (4) is formed by a fastener tape having a rectangular cross-section. Rafflamellenstore according to one of claims 1 to 12, characterized in that at least one support element (4) by a support cable (12, 13) is formed with a circular or elliptical cross-section. Rafflamellenstore according to one of claims 1 to 33, characterized in that at least one support element (4) of two parallel support cables (12, 13) is formed with a circular or elliptical cross-section. Rafflamellenstore according to claim 14, characterized in that the two support cables (12, 13) when passing through the one fastener (6) intersect.

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