DE3117998A1 - Roller blind for trapezoidal windows - Google Patents

Abstract

The entire trapezoidal window surface to be covered by means of a roller blind is divided up into a rectangular canvas portion (1) and a triangular canvas portion (2). Each of these portions (1 and 2) is assigned, at the head end, a spring shaft (3 and 4, respectively) upon which to wind the respective canvas webs, as well as corresponding casings (7 and 13, respectively) for covering and as securing means for the spring shafts (3 and 4). The casing (7) of the rectangular canvas portion (1) is, in addition, connected to the that (13) of the triangular canvas portion (2) via a hinge (15), with the result that it can be pivoted, according to the chain-dotted circular path (8) and arrow (P), out of its end position on the stop (11) up to the casing (13). <IMAGE>

Description

Roller blind for trapezoidal windows

The invention relates to a roller blind for trapezoidal or the like.

irregularly constructed or adapted to the respective structural conditions Interior windows of buildings, houses and the like.

Roller blinds in themselves are sufficient and already for rectangular windows known for a long time; for trapezoidal windows, there are so far as sight, light and sun protection, however, only very elaborate roll or strip curtains, their Disadvantage essentially in only inadequate light attenuation and also in it lies that these parts when opening the respective window from the most diverse Reasons are mostly in the way.

The present invention has therefore set itself the task of a Roller blinds of the so-called spring roller blinds, i.e. with a rollable fabric web and To design the spring shaft in such a way or to assign two such systems to one another in such a way that even trapezoidal windows can be shielded to the full extent.

This object is essentially achieved by what is stated in the patent claims the structural and functional measures laid down in connection with the Drawing are also explained in more detail in the subsequent description.

Basic idea of the invention or superordinate technical teaching is the division of the trapezoidal window area into one on the roller blind side rectangular and a triangular surface section and each of these sections assigned, structurally separate, but functionally partially dependent roller blind element.

The drawing shows a largely schematic representation as 1 shows the front view of a roller blind according to the invention and FIG. 2 shows a side view 1, and FIG. 3 shows a structural detail from FIG. 1 on an enlarged scale.

The entire trapezoidal window area to be covered with a roller blind is divided into a rectangular and a triangular cloth section 1 and 2. Each of these sections 1 and 2 is a spring shaft 3 and 4 on the head side Winding up the respective cloth webs assigned, as well as for covering or as a holder for the spring shafts 3 and 4 corresponding boxes 7 and 13. The box 7 of the rectangular Cloth section 1 is also via a folding hinge 15 with that 4 of the triangular Cloth section 2 connected so that it is according to the dash-dotted circular path B and Arrow P can be pivoted from its end position on the stop 11 to the box 13 can. The upper box 13 is firmly seated on the window frame F and is advantageous covered with a saddle pad 14.

In Fig. 3, finally, the sequence of movements when raising or lowering is shown. Pulling down the triangular cloth web 2 shown.

This cloth web sits with its tip 2 'on the sliding block 6 of the slot-like guide slot 5 on the back of the box 7. At the same time a pull cord 8 engages on this sliding block 6, which is at the open end of the backdrop 5 runs over a pulley 9, as well as another 10 on the window frame F in Position is held. When letting up or pulling down the upper sheet of cloth 2 there is always a forced operation between the aforementioned components. With position 12, the drawstring of the rectangular cloth section is ultimately indicated.

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Claims (6)

Claims 1. Roller blind for trapezoidal windows, in particular for interior windows where the inclined part of the trapezoid frame is at the head end is, characterized in that the entire window area to be covered in one rectangular (1) and a triangular (2) surface section divided, each of these sections (1 and 2) a preferably spring-loaded head end Winding shaft (3 or 4) assigned and that (3) of the rectangular section (1) hinged at one end to the (4) of the triangular section (2) is, with only the free tip (2 ') of the triangular cloth web (2) via a sliding guide or link (5, 6) on the bracket or the box ( 7) engages the take-up shaft (3) of the rectangular cloth section (1). 2. Roller blind according to claim 1, characterized in that the rectangular Surface section (1) of the roller blind can be rolled up independently of the triangular (2) is, the latter (2), however, only after the former (1) and has been rolled up taking along its take-up roller (3) and box (7). 3. Roller blind according to claims 1 and 2, characterized gekennzeichn0.t that the sliding or link guide (5, 5) on the window frame (F) facing Side of the box (7) lies. 4. Roller blind according to Claims 1 to 3, characterized in that the drawstring (8) for the triangular cloth web (2) on the sliding block (6) of the The gate (5) engages and so-called closed pulleys (9 or 10 ) is guided at the end of the link guide (5) or on the window frame (F). 5. Roller blind according to Claims 1 to 4, characterized in that a stop (11) is provided on the window frame (F) which has the lowest position limited by take-up roller (3) and box (7) of the rectangular cloth web (1). 6. Roller blind according to Claims 1 to 5, characterized in that the articulated connection between the two take-up shafts (3 and 4) or their Boxes (7 and 13) is designed as a folding hinge (15).