EP1063385A2 - Bottom bar for receipt of the edge of a screen for at least partially covering an opening - Google Patents

Abstract

A hollow chamber (10) open on the outside along the length of the end-rod contains a holder (6,20) on which is fixed the edge part of the curtain inserted into the hollow chamber. The position of the holder in relation to the end rod is adjusted by a positioning piece (30). The holder has protuberances (22) fitting into matching holes on the edge of the curtain.

Description

The invention relates to a closing rod for receiving an edge region of a curtain for at least partially covering an opening, in particular a window.

Protective devices, in particular rollable protective devices in the form of roller blinds, for Covering a window by means of flexible flat material is widespread. The curtain is usually on a winding shaft at the top of the window opening stored and if necessary by means of suitable mechanical or electromechanical devices moved down to cover the window opening. At the bottom edge of the curtain is usually one that extends over the entire width of the curtain End bar attached, which also serves as a weighting bar. The attachment takes place, for example, by gluing or clamping. The function of the end rod is to weigh down the curtain and keep it taut so that the curtain is as possible is wrinkle-free. Due to the fixed over the entire width of the end rod Connection of the curtain to the end rod, however, it can, especially with large Width of the curtain, warps occur. Such faults are special disadvantageous for curtains that consist of aluminum-coated reflector film, because the normally facing aluminum-coated side of the curtain itself small faults can have a very negative influence on the optical appearance and the entire exterior view of a building is impaired.

In another type of protective device, the curtain is at the bottom of the The window opening is rolled up and can be moved up and down using suitable devices. Such protective devices are for example from DE 93 02 614 and DE 296 09 604 known. The curtain of such protective devices, in which even partial Covering the window that daylight can penetrate into the depth of the room often made of aluminum-coated reflector foil. The drive technology of such protective devices differs significantly from that of conventional roller blinds, which are on the upper edge are attached to the window opening. With conventional roller blinds, the curtain can only can be rolled out by turning the shaft or roller on which it is unwound, whereby the weight of the end rod pulls it down. With a protective device in which the curtain for increasing concealment of the window opening from bottom to top moved, the operating forces are usually applied to the curtain via the end rod. Normally, the end bar engages on both sides at its outer ends Traction elements, preferably cords that pull him up, usually Lateral guide elements are provided which cover the lateral ends of the end rod and take up the tension elements and, if necessary, the side edges of the curtain. As a result of on the outer ends of the end rod on the tensile elements applied tensile forces downward opposing forces of the curtain, which are usually caused by a winding direction elastic pretensioned winding shaft are reinforced, and above all that own weight of the end rod, there is a deflection of the end rod, which leads to warping and / or wrinkling in the curtain.

With a conventional protective device attached to the upper edge of the window opening such a deflection of the end rod does not normally occur because only the weight of the end rod evenly across its entire width in the Curtain is initiated. It is understood that conventional protective devices similar deflections of the end rod can occur if the curtain forces introduced at the end rod are rolled out.

Another type of protective device is known that is immovable in front of one Window opening are arranged and in which the curtain on both its upper and is also limited at its lower edge by a closing rod and at which the end rod located at the upper edge of the curtain at its lateral ends is fixed in a vertical direction in front of the window opening or on lateral guide elements movably supported. Even with these protective devices there is the already described deflection of the one located at the top of the curtain End rod, which adversely affects the visual appearance of the curtain Bumps and wrinkles.

Because it is not possible with reasonable effort, especially with a large width of the curtain is to make the end rod sufficiently rigid to avoid Wrinkles and bulges have already made various suggestions. In DE 42 18 383 For example, a selective storage of the curtain at the two lateral ends of the final staff, in which one bearing is fixed and the other in the direction the longitudinal extent of the end rod is movable and this movable bearing by elastic elements acting on it for lateral tightening of the curtain with tension is acted upon. However, the clamping forces that can be applied are only for protective devices suitable, which are attached to the upper edge of the window openings. For bottom to bottom Blinds moved above do not have sufficient tension. If they were big enough, like that so great forces would act on the curtain that they overstretched and thus plastic would be deformed, which would result in permanent warping. Still are not described in DE 42 18 383 recording points or bearings on the curtain at its lateral ends, so that lateral edge areas remain that are not tensioned can become unstable, which can lead to wrinkles.

The invention has for its object a closing rod for receiving an edge area a curtain for at least partially covering an opening, in particular to create a window with which a wrinkling or warping of the Blinds also with large acting on the end rod, especially its ends Forces can be avoided.

The above object is achieved with a closing rod according to the main claim.

With the help of the invention in a extending longitudinally through the end rod Hollow chamber arranged support device to which the edge of the curtain is attached and the positioning device with which the support device relative to the end rod can be adjusted, it is possible to the edge of the curtain from a deformation of the End bar, especially a deflection, to decouple, so that the curtain despite large forces acting on the end rod remain free from warping.

The claim 2 is for a simple design of the support device and the attachment the curtain directed at the support forming the support device.

The claims 3 to 7 are directed to advantageous details of the final rod, in which the edge of the curtain fixed in the support device remains straight even when the end rod bends.

With the features of claims 8 and 9, the curtain can also be stretched laterally, which also counteracts warping.

Claim 10 is directed to an advantageous embodiment of the end rod, the molded parts both for the introduction of force from the traction means and for the holder serve the carrier to which the curtain is attached.

The invention is suitable for all types of protective devices or curtains with which any openings can be covered more or less.

The following are exemplary embodiments of the invention with reference to schematic drawings explained with further details.

Fig. 1

einen Schnitt durch einen Abschlußstab mit daran befestigten Behang entsprechend einem ersten Ausführungsbeispiel der Erfindung, geschnitten längs der Linie I-I der Fig. 3;

Fig. 2

eine Schnittansicht durch das Ausführungsbeispiel der Fig. 3, geschnitten längs der Linie II-II der Fig. 3;

Fig. 3

das gleiche Ausführungsbeispiel, geschnitten längs der Linie III-III der Fig. 2,

Fig. 4

das gleiche Ausführungsbeispiel, geschnitten längs der Linie IV-IV der Fig. 2,

Fig. 5

einen Schnitt ähnlich dem der Fig. 2 durch ein weiteres Ausführungsbeispiel,

Fig. 6

eine vergrößerte Darstellung des seitlichen Endbereiches eines Abschlußstabes in einer Schnittansicht ähnlich der Fig. 3,

Fig. 7

einen Schnitt längs der Linie V-V der Fig. 6,

Fig. 8

ein weiteres Ausführungsbeispiel im Schnitt VI-VI der Fig. 9 und

Fig. 9

das gleiche Ausführungsbeispiel wie Fig. 8, geschnitten längs der Linie VII-VII der Fig. 8.

They represent:

Fig. 1

a section through an end rod with attached curtain according to a first embodiment of the invention, cut along the line II of Fig. 3;

Fig. 2

a sectional view through the embodiment of Figure 3, taken along the line II-II of Fig. 3.

Fig. 3

the same embodiment, cut along the line III-III of Fig. 2,

Fig. 4

the same embodiment, cut along the line IV-IV of Fig. 2,

Fig. 5

3 shows a section similar to that of FIG. 2 through a further exemplary embodiment,

Fig. 6

3 shows an enlarged illustration of the lateral end region of a closing rod in a sectional view similar to FIG. 3,

Fig. 7

6 shows a section along the line VV of FIG. 6,

Fig. 8

a further embodiment in section VI-VI of Fig. 9 and

Fig. 9

the same embodiment as Fig. 8, taken along the line VII-VII of Fig. 8th

1 to 4 show a first embodiment of an end rod 1 of a curtain 2 for at least partially covering a window or a building opening.

The end rod, designated overall by 2, consists of an outer rod 4 and an inner rod 6 composed. The outer rod 4 has an upper hollow chamber 8 and one lower hollow chamber 10, which are separated by a partition 12. From the bottom Hollow chamber 10 leads a slot 14 to the outside.

The outer cross section of the inner rod 6 is on the inner cross section of the hollow chamber 10 matched such that the inner rod 6 relative to the outer rod 4 according to FIG. 1 in a vertical Direction is essentially free of play, one engaging in the slot 14 Extension 16 of the inner rod 6 moves within the slot 14.

The inner rod 6 is also formed as a profile part with a hollow chamber 18, in which a carrier 20 is accommodated essentially without play.

2, 3 and 4, the carrier 20 is provided with nub-like projections 22 which reach through corresponding holes 24 (FIG. 3) which are formed in the edge region of a curtain 26 are.

The curtain 26 is formed by the slot 14 of the outer rod 4 and one in the inner rod 6 Slot 27 is guided and lies on the non-protruding side surface of the carrier 20th where it engages between the projections 22 and the holes 24 is held. So that the holes 24 are at a sufficient distance from the outer edge of the curtain 26 can be formed, the hollow chamber 18 is extended upwards into a groove 28, into which the outermost edge of the curtain 26 protrudes. The curtain 26 is on the projections 22, which reach through the holes 24, are held particularly securely because the End faces of the projections 22 bear against the inside of the hollow chamber. Advantageously, the projections 22 have a bead so that the curtain 26 is already held securely during assembly.

As can be seen in particular from FIG. 2, the lower wall of the Outer rod 4 screws 30 screwed in with their front ends 32 on the Apply underside of the inner rod 6 and screw this in more or less far can move within the lower cavity 10.

As can be seen in particular from FIGS. 3 and 4, the carrier 20 consists of several parts 20a, 20b, 20c composed. The outer support parts 20a and 20c have pins 34 which protrude through through openings 36 which are formed in molded parts 38 are, which are positively inserted from the side into the outer rod 4. The Carrier 20 is, for example, with a width or length of the end rod of 1000 mm composed of five parts, each with a length of almost 200 mm, the outer parts in Edge area of the end rod can be tensioned.

The assembly described is assembled as follows:

The edge area of the curtain is on the possibly multi-part support 20 attached by tapping its holes in the knob-like projections 22. Subsequently the carrier 20 with the attached curtain 26 laterally into the inner rod 6 inserted. Then the inner rod 6 with the carrier 20 and received therein the curtain 26 inserted into the cavity 10 of the outer rod 4. Be from the outside on the pins 34, the profile parts 38 plugged and positively on the outer rod 4 attached. The outer ends of the carrier 20 or its outer parts are as is explained below, advantageously on the profile parts 38 and thus on External rod 4 attached that they are immobile in the longitudinal direction of the curtain, but in Width direction of the curtain to its tension are pulled away from the outer rod can, but cannot move in the opposite direction.

If the end rod 2, as shown in the figures, the top of a curtain Completes 26, and the end rod at its outer ends, preferably only that Profile parts 38 is held by an outer bracket or tension elements, bends it due to its own weight and the opposing forces acting on it from the curtain 26 through more or less. The inner rod 6 follows this deflection, so that the entire edge region of the curtain 26 is deformed, which leads to warping and / or Wrinkles would result. To counteract this, the studs will be 30 more or less screwed so that the inner rod 6 and thus the Carrier 20 runs in a straight line and the edge region of the curtain 26, which with Game is included in the gap 14, despite the deformation of the outer rod 4 none Is subject to deformation and maintains a warp-free, flawless appearance.

The number of stud bolts 30 that is required to maintain the straightness of the inner bar 6 to guarantee depends on the respective geometric relationships and weight ratios from. Arrangements are possible in which the carrier 20 as a whole is formed in one piece, one or more studs, the straightness of the Ensure wearer. Arrangements are also possible in which the carrier, as in Fig. 4, consists of two or more parts, between which more or less there are large gaps 40, and only the central part 20b by means of a stud is adjusted. The outer support members 20a and 20c are at their outer ends firmly held in the molded parts 38, but can easily tilt if necessary. Overall, as a result of the support, the deflection in the outer rod 4 corresponds to the latter more or less screwed studs 30 at the bottom of the Inner rod 6 ensures the straightness of the edge of the curtain 26.

It is understood that various modifications of the arrangement described are possible are. For example, between the bottom of the inner rod 6 and the opposite side the outer rod 4 spacers may be attached or wedges from the side be inserted. It is crucial that a support device or support assembly on the the curtain 26 is fastened, can be displaced relative to the end rod in such a way that even with bent end rod a straight clamping or bracket of the curtain 26 is possible. The described construction of the end rod can the most varied requirements and force ratios can be adjusted by the Studs are adjusted appropriately.

FIG. 5 shows an embodiment modified from FIG. 2. In the embodiment 5 are one or more screws in the end rod from above 42 used, project through the corresponding holes in the partition 12 and with corresponding Threaded holes 44 are screwed into the inner rod 6. If the outer rod 4, as shown in Fig. 4, bends downwards, this bend can be made by appropriate Screwing the screws 42 into the inner rod 6 can be compensated so that the middle area of the inner rod 6 is raised, the head 46 of the screws 42 is supported on the partition 12. It is understood that the hollow chamber 10 in execution 5 can be open at the bottom as a whole.

Fig. 6 shows an enlarged representation of a lateral end portion of the end rod. As can be seen, the molded part 38 is form-fitting with the aid of a corresponding extension 48 inserted into the outer rod 4 and takes the pin 34 of the outer support member 20a on. The outer surface of the pin 34 is formed with a toothing or knurling, with a corresponding toothing or knurling on the inside of the Through opening 36 of the molded part 38 cooperates in such a way that at an between the two gears or knurling effective contact force the pin 34 is not 6 can move to the right relative to the molded part 38. In this way it is possible to hang the curtain 26 which is not quite as wide as the length of the outer rod 4, so that a gap 49 remains between the curtain 26 and the molded part 38, to the outside to tension, which also counteracts warping and wrinkling of the curtain 26.

The top of the outer rod 4 is cut out at its lateral end, so that there a roller 50 mounted on the molded part 38 can be arranged, which is a deflecting means for a rope 52, which acts as a traction means for moving the end rod 2 and thus the curtain 26 is used. The force is introduced from the traction means 52 via the roller 50 and a bearing pin 54 of the molded part 38 above it in the hollow chamber 8 recorded body area and the neck 48 in the outer rod 4 and the pin 34 in the carrier 20 and the curtain 26. The rope 52 runs through the upper hollow chamber 8 through to a corresponding roller 50 at the other end of the end bar.

It is understood that the over the side surfaces of the molded parts 38, the end caps of the end rod form, protruding ends of the pin 34 after lateral tension of the curtain 26 can be removed. It is further understood that the carrier 20 is present the lateral tensioning device between the pin 34 and the molded part 38 is formed in several parts, only the outer parts are braced outwards and the outer parts are connected to inner parts only via the curtain 26. The tensioning device could also be formed in that the pins 34 have external threads, are screwed onto the nuts which are supported on the outer surface of the molded parts 38.

Fig. 7, which shows a section along the line V-V of Fig. 6, represents the tension between the pin 34 and the molded parts 38 in more detail. As can be seen, the Pin 34 has an asymmetrical external toothing 56, which with a corresponding Teeth 58 cooperates on a spring tongue formed on the molded part 38 60 is formed. In this construction, the displacement of the Pin 34 in the outer rod 4 locking effect no effective on the curtain Train required; rather, the spring tongue 60 constantly presses elastically against the pin 34, whereby a self-locking on a pin 34 according to FIG. 7 to the right acting tensile force occurs. To the left, however, the pin 34 can be bent elastically of the spring tongue 60 are moved to tension the outer carrier part 20a to move the curtain 26 to the left.

8 and 9 show a simplified embodiment of a closing rod 62, the formed in one piece and not composed of an outer rod and an inner rod is. For functionally similar components, the same reference numerals are used as in those already explained Figures used. In this embodiment, the carrier 20 is a fit recorded in the hollow chamber 18, so that no relative displacement between the Carrier 18 and the end rod 62 is possible, the deflection of the end rod 62 balances. In contrast, if the support 18 is formed in several parts, it is a lateral one The curtain can be tensioned. The embodiment according to FIGS. 8 and 9 comes for example for a roller blind with a direction of movement from top to bottom.

It is understood that in a modified embodiment, the carrier 20 with a Cross section can be formed such that it is within the hollow chamber 18 according to the Figures is displaceable in the vertical direction, this displacement by Screws similar to the embodiments of FIG. 2 or 5 can be effected, so that even with one-piece design of the end rod 62 a compensation of the latter Deflection is possible.

The exemplary embodiments of the end rod are suitable for all installation positions of the curtain and the guide or bracket of the end rod, whereby the deflection compensation by appropriate arrangement of the screws or other adjustment means is possible.

Claims (10)

End rod for receiving an edge region of a curtain (26) at least partially covering an opening, in particular a window, with one lengthways the length of the end rod (2; 62) to the outside open hollow chamber (10; 18), one in of the hollow chamber held support device (6, 20; 20), on which the in the hollow chamber inserted edge area of the curtain, and a positioning device (30; 42; 56, 58), with which the position of the support device can be realistically adjusted to the end rod is. End rod according to claim 1, wherein the support device by a longitudinally the hollow chamber (10; 18) extending support part (6, 20; 20) is formed, which with knob-like Projections (22) is formed, which in corresponding, on the edge of the curtain (26) engage trained holes (24). End rod according to claim 2, wherein the support member (6, 20; 20) at its ends on the end rod (2; 62) in the length of the inserted into the hollow chamber (10; 18) End region of the curtain (26) determining direction is determined and that by means the positioning device (30; 42) has a central region of the one accommodated in the hollow chamber (10) Support part (6, 20) is displaceable in such a way that the Length of the edge region of the curtain (26) introduced into the hollow chamber is changed. A termination bar according to claim 3, wherein the positioning means is by spacers is formed, which between an inside of the hollow chamber (10) and the Support part (6, 20) are arranged. End rod according to claim 3, wherein the positioning means by screwing (30; 42) is formed, by means of which the distance between an inside of the hollow chamber (10) and the supporting part (6, 20) is changeable. End rod according to one of Claims 3 to 5, the end rod (2) an outer rod (4) formed with the hollow chamber (10) and an inner rod (6) contains, the outer cross section of which is matched to the cross section of the hollow chamber is that it only changes the length of the curtain inserted into the hollow chamber Movable in the direction that in the inner rod another, accessible via a slot (27) Hollow chamber (18) is formed, in which a supporting part (20) fits and that the positioning device (30, 42) on the inner rod (6) attacks. End rod according to one of claims 2 to 6, wherein the carrier (20) in its Longitudinal direction is divided into a plurality of carrier parts (20a, 20b, 20c). The end bar according to claim 7, wherein the position of at least one side Support part (20a, 20c) with respect to the longitudinal direction of the support relative to the end bar (2; 62) is adjustable. End rod according to one of claims 2 to 8, wherein in the front ends of the formed as a profile part end rod (2; 62) with a through opening (36) Molded parts (38) are inserted, protruding from the front ends of the carrier Pin (36) protrude through the through openings, and the inner surface of the Through openings and the outer surfaces of the pins with corresponding grids (56, 58) are formed. End rod according to claim 9, wherein the molded parts (38) are provided with means (50) are on which traction means (52) for adjusting the attached to the curtain (36) Attack the end rod (2; 62).

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