EP0834275B1 - Roman shade with winding axis with an attachment means for the ends of the drawing cords - Google Patents

Abstract

The curtain has pull cords (150) whose ends are fastened onto at least one fastening ring (20) pushed over a winding shaft (100). This shaft is fixed to a mounting bar (10) and has a number of cord guides (16). The ring has a cord collector (25) on its periphery. The ring is preferably attached to the shaft by a clamp or screw connection (26), or it may be formed from the shaft's material. The collector preferably comprises a shaped body which is fixed to the ring or removably attached to it. The ends of the cords may be attached to the collector by knots, clamps or clips.

Description

The invention relates to a Roman blind with a winding shaft with a Fastening for the ends of pull cords, according to the preamble of Claims 1 and 2.

A winding device for the drawstrings of roman blinds describes DE-A-39 31 090. In this device, the upper ends of the Drawcords of the roman blind on a fixed, rotatable shaft removably attached, on which they can be wound up or unwound, thereby raising or lowering the curtain. The danger entangling or entangling of the individual pull cords with each other when removing and / or reapplying the curtain thereby avoiding the top of each pull cord before attaching it to the shaft by one fixed above this shaft arranged guide element is guided.

DE-A 38 11 326 is a reversible winding system for alternating coils can be seen in which the pull cords of a removable Roman shade the ends of which are attached to Velcro strips, wound on spools with a corresponding (e.g. Velcro part / Velcro part) Velcro are occupied. The reel spools are mounted on a shaft that is stored in bearings firmly connected to the housing. Assembly or The Roman blind is disassembled by placing or removing the adhesive tape strips on or from the Velcro strips of the spools. As coils can also have strips of flexible material placed on the shaft are used, the total width of which is less than is half the wave size and two parallel right-angled flat ones protruding from the shaft axis Have projections. This winding system is also a Tangle and tangle of the drawstrings cannot be avoided.

CH-A-672 658 relates to a blind with an elevator drum for taking up a winding or unwinding strand, the elevator drum being provided with an external thread is and rotatably mounted in a fixed threaded nut is to the blind not only when lifting, but also to be able to operate when lowering. The strand or the pull cord in this blind is by means of screws attached to the elevator drum.

DE-A-30 09 992 describes a foldable or pull-up type Curtain that is easily and quickly removable or attachable should be. For this, the curtain is in appropriate places with a plurality of releasable connecting elements from two Provide any connectable parts, with one part on Curtain is attached and the other part is a continuous or wearing an interrupted little ring, which serves as a holding and guiding link for a cord that part of the curtain's hoisting and lowering device forms. There is a multitude of them in this curtain bands extending in the vertical direction are provided, which are attached to the curtain at appropriate intervals. There is a first on these tapes at regular intervals Part of a plurality of snaps designed here Tongue and groove connections attached. The other Corresponding part of the tongue and groove connection Snap fasteners are designed so that they are closed Ring or an open ring or anyway an openable ring for carrying out the individual Has pull cords.

A Roman blind with a winding shaft with fastenings for the ends of drawstrings, with in the hollow winding shaft trained holes just matching, under Clamping and press-fit, removable inserts if required are made of elastic material, connected to the ends of the drawstrings EP-A-05 41 901. In this embodiment, the Bores in the winding shaft inserted plug-like shaped bodies, by means of a clamp and press fit in the holes are held. The free ends of the pull cords are with these plug-like shaped bodies firmly connected, being for each pull cord is provided with a plug-like shaped body, so that the winding shaft for the pull cords one of the number the number of holes used with the pull cords has plug-like shaped bodies. Preferably are the winding shafts for the drawstrings of roman blinds designed as cylindrical hollow shafts. For training of the holes for the plug-like to be used Shaped body, it is necessary that the cylindrical hollow shaft has a correspondingly large wall thickness. The multitude the recesses formed in the wall of the winding shaft lead to a weakening of the material. Let also these recesses for receiving the stopper-like Shaped body no small winding shaft diameter too. are the winding shafts are designed as solid shafts, then it is also not possible, winding shafts with small diameters and to prevent material weakness it is also necessary that then the winding shafts have a correspondingly large diameter must have. In all embodiments, at those in the take-up shaft recesses for the plug-like Shaped body provided for attaching the pull cord ends are an intervention in the winding shaft material with the result that winding shafts with small Diameters are not usable.

The CH-A-677 437 describes a roman blind in which the drawstrings are releasably attached to a winding drum so that the Roman blind for Washing can be removed without pulling the cords from the am Must pull out the roman blind attached guide loops. The Pull cords stay on the tieback. So that the drawstrings do not pull out of the guide loops when washing there is a thickening at its free end, which is larger than that Opening of the guide loops is. With this roman blind, too, everyone is Pull cord for itself attached to the winding shaft with one end. On Depending on the window width, there are several winding drums on the winding shaft for the pull cords, whereby all winding drums are designed identically. The number of winding drums corresponds to the number of pull cords. Each winding drum consists of a drum wall and two drum fluff walls. The individual pull cords are attached by that the respective pull cord end into a radial slot in the drum fluff wall the associated winding drum clipped and by a Thickening, e.g. B. knots, or by a bolt at the end of the pull cord is supported. A merging of all pull cord ends a single pull cord collector is in this well-known gathering curtain not realized, is also not possible for technical reasons, because that End of each individual pull cord is attached to a winding drum. The technical effort is considerable because of the number of winding drums on the winding shaft corresponds to the number of pull cords used.

It is therefore an object of the invention to provide a winding shaft for the pull cords of a venetian blind available without mechanical Intervention a fastening of the pull cord ends without great technical Effort allows and which can be retrofitted at any time to smooth winding spindles To be able to attach pull cord end attachment devices.

This task is accomplished with a roman blind of the type mentioned above the features characterized in claims 1 and 2 solved.

A first embodiment of the invention according to claim 1 consists in that the winding shaft has at least one fastening ring pushed onto it carries, which is fixed or releasably connected to the winding shaft and a pull cord collector designed as a shaped body on its circumference for attaching the ends of the pull cords, wherein each pull cord is guided through a guide ring to the cord collector is.

A second embodiment of the invention according to claim 2 provides that the winding shaft has at least one fastening ring pushed onto it carries, which is fixed or releasably connected to the winding shaft and a pull cord collector designed as a shaped body on its circumference for attaching the ends of the pull cords, wherein each pull cord through with the on both sides of the mounting ring the cord collector on the retaining strip held guide rings for Cord collector is guided between the outermost pull cord and the one adjacent to the central fastening ring with the line collector Pull cord are attached to the retaining bar.

The inventive design of the winding shaft for the pull cords A venetian blind has the advantage that both hollow shafts also solid shafts as winding shafts with a fastening device for the Pull cord ends and can also be retrofitted, since the Fastening ring with the pull cord collector only on the winding shaft is pushed on and locked on it, which is done by means of a Clamp or screw connection can be made. Because the outer wall surface the winding shaft no machining to attach must be subjected to the fastening ring, there is the possibility also small diameter winding shafts with the pull cord end fastening device to provide. Is the fastening ring detachable connected to the winding shaft, there is the further advantage that the mounting ring anywhere on the take-up shaft can be attached, also off-center, so that in adaptation to the design and folding of the curtain in the different Variations are gathered and held in a partially gathered position can.

In addition to an embodiment in which a fastening ring is centered on the winding shaft is attached with a pull cord collector to which the ends all pull cords are attached, according to a further embodiment also the possibility of one of the number of on the winding shaft provided pull cords corresponding number of fastening rings with draw cord collectors so that each draw cord is on one Draw cord collector is attached. When using only one Fastening ring with a pull cord collector are the pull cords guided by guide rings, which are attached to the retaining strip, on the the winding shaft is supported. This holding bar is with facilities for Attachment to the ceiling of a room or to a vertical wall Mistake. The routing of the pull cords to the pull cord collector can according to a first embodiment so that each pull cord is led through a guide ring to the pull cord collector, whereas according to a second embodiment, each pull cord through all guide rings to the pull cord collector, which is between the outermost Pull cord and the central fastening ring with the pull cord collector adjacent pull cord are attached to the retaining bar.

Further advantageous refinements are characterized in the subclaims.

Fig. 1

in einer Vorderansicht eine Halteleiste mit an dieser gelagerten Aufspulwelle für eine Anzahl von Zugschnüren, wobei die Aufspulwelle mit einem Befestigungsring mit einem Zugschnursammler versehen ist,

Fig. 2

einen senkrechten Schnitt gemäß Linie II - II in Fig. 1 und

Fig. 3

einen vergrößerten Abschnitt des Befestigungsringes mit einem lösbar an diesem angeordneten Zugschnursammler.

The invention is explained in more detail below with reference to drawings. Show it

Fig. 1

in a front view a retaining strip with a winding shaft mounted on this for a number of pull cords, the winding shaft being provided with a fastening ring with a pull cord collector,

Fig. 2

a vertical section along line II - II in Fig. 1 and

Fig. 3

an enlarged portion of the mounting ring with a detachably arranged on this cord collector.

In Fig. 1 with 100 is a winding shaft for the pull cords 150 of a venetian blind not shown in the drawing designated. This winding shaft 100, which is cylindrical Hollow or solid shaft can be formed in lateral Mounts 11, 12 of a holding bar 10 are rotatably mounted.

This retaining strip 10 is provided with means for fastening on the ceiling of a room or on a vertical wall Mistake. The winding shaft 100 is operated by means of an operating cord, not shown in the drawing or service chain. These controls engage directly on the winding shaft 100 or its axis 100a.

The winding shaft 100 is forming a space at a distance from the retaining strip 10 on this attached. Between the retaining bar 10 and the winding shaft 100 are a number of guide rings on the retaining strip 10 16 attached through which the pull cords 150 passed are. The number of guide rings 16 corresponds to that Number of pull cords used in each case 150. The circumferential Wall surface of the winding shaft 100 is designated 111.

A fastening ring 20 is pushed onto the winding shaft 100, of the embodiment shown in FIG. 1 is fixed in the middle of the winding shaft. The mounting ring 20 is fixed or detachable with the winding shaft 100 connected. In the fixed embodiment, the Mounting ring 20 preferably in the manufacture of the Winding shaft formed from its material. At a releasable attachment of the fastening ring 20 on the winding shaft 100 is the fastening ring by means of a screw connection held on the winding shaft 100, which in FIG. 1 is indicated at 26. Locking or clamping devices can for the releasable attachment of the mounting ring 20 the winding shaft 100 can also be used. Essential is that the mounting ring 20 on the winding shaft 100 is locked and secured against twisting, so that the Cord collector 25 on the mounting ring 20 always one upper, which occupies the position shown in Fig. 1.

The winding shaft 100 is made of plastic, wood or a metallic material. The mounting ring 20 with his Drawstring collector 25 can be made of the same materials how the winding shaft 100 exist.

The pull cord collector 25 is also fixed or detachable attached to the mounting ring 20 and is used for attachment and holding the ends 150a of the pull cords 150. The ends 150a of the pull cords 150 can be made by means of a knot connection, Clamp connection or clip connection on the pull cord collector 25 of the mounting ring 20 to be attached.

In the embodiment shown in Fig. 1 is on the winding shaft 100 a single mounting ring 20 with a pull cord collector 25 arranged for the attachment of all pull cords 150 is used for the Roman blind.

In this embodiment according to FIG. 1, each one is Pull cord 150 through all guide rings 16 to the cord collector 25 led, i.e. the pull cords 150 are through all the guide rings led to the line collector 25, which between each outermost pull cord 150 'and the central fastening ring 20 pull cord 150 '' adjacent to the cord collector 25 '' guided so that the upper portions through the guide ring 16a of the two pull cords 150 ', 150' 'passed through whereas the pull cord 150 'is the outer pull cord is guided through the guide ring 16b. In addition to the with A designated cord guide to the cord collector 25 exists yet another possibility that each one Pull cord 150 passed through the associated guide ring 16 and from this directly to the line collector 25 and is attached to it with its end 150a. This Drawstring guide B is indicated by dashed lines in FIG. 1.

There is also the possibility on the winding shaft 100 one corresponding to the number of pull cords 150 Number of fastening rings 20 with line collectors 25 to be arranged so that the free end 150a of each pull cord 150 on the cord collector 25 of a fastening ring 20 is attached.

The pull cord collector 25 can be fixed to the fastening ring 20 be arranged (Fig. 2). For example, there is the mounting ring 20 made of plastic, then the pull cord collector 25 when making the fastening ring with be formed, i.e. the pull cord collector 25 is then integrated part of the fastening ring 20.

In contrast, the pull cord collector 25 is detachable with the fastening ring 20 connected (Fig. 3), then the pull cord collector by means of a clamp fit in the surrounding wall of the fastening ring held. In the embodiment shown in Fig. 3 is in the wall of the mounting ring 20 a formed approximately T-shaped groove 21, whereas the course collector 25 a corresponding one formed at 27 Has counter profile. In this embodiment, the Cord collector 25 on the fastening ring 20 by means of clamping and Press fit held. Other releasable connection means can apply. In those shown in Figs. 2 and 3 In embodiments, the line collector 25 is designed like a button, so that the pull cords 150 with their free ends 150a attached to the line collector 25 by knotting become. The line collector 25 can also be one of the number the number of perforations corresponding to the pull cords 150 through which the ends 150a of the pull cords 150 be passed through. Then with the holes A section of the pull cord ends are led out with Knot so that the pull cords 150 with their ends 150a are held on the line collector 25. Also other Refinements of the line collector 25 can be used get to, for example, the attachment of the ends 150a of the pull cords 150 by means of a snap or clip connection to be able to make.

The winding shaft 100 with its pull cord collector 25 is both in roman blinds with individual pull cords 150 as can also be used with such venetian blinds, each of which a right and a left pull cord over a parallel pull cord section running above the winding shaft 100 are connected so that there is a pull cord guide results in a U-shape. All parallel to the winding shaft 100 running cord sections are then in the middle the pull cord collector 25 of the mounting ring 20 on the Winding shaft 100 attached.

Claims (7)

1. Roman shade with a winding axis (100) with an attachment for the ends of drawing cords (150), whereby the winding axis (100) is positioned on a supporting ledge (10) which has a number of guiding rings (16) for the drawing cords corresponding to the number of drawing cords (150),
   characterized in that
   the winding axis (100) carries at least one fastening ring (20) slipped thereon which is fixedly or removably connected with the winding axis and which has, on its periphery, a drawing cord collector (25) configured as a moulded body for attaching the ends (150a) of the drawing cords (150), each drawing cord (150) being guided by a guiding ring (16) to the cord collector (25).
2. Roman shade with a winding axis (100) with an attachment for the ends of drawing cords (150), whereby the winding axis (100) is positioned on a supporting ledge (10) which has a number of guiding rings (16) for the drawing cords corresponding to the number of the drawing cords (150),
   characterized in that
   the winding axis (100) carries at least one fastening ring (20) slipped thereon which is fixedly or removably connected with the winding axis and which has, on its periphery, a drawing cord collector (25) configured as a moulded body for attaching the ends (150a) of the drawing cords (150), each drawing cord (150) being guided to the cord collector (25) by the guiding rings (16) held on both sides of the fastening ring (20) with the cord collector (25) on the supporting ledge (10), these guiding rings being fixed between the respectively most outer drawing cord and the drawing cord adjacent to the central fastening ring (20) with the cord collector (25).
3. Roman shade according to one of the claims 1 or 2,
   characterized in that
   for a removable attachment of the fastening ring (20) on the winding axis (100) the fastening ring (20) is held on the winding axis (100) by means of a clamping joint or a screwed connection (26).
4. Roman shade according to any of the claims 1 to 3,
   characterized in that
   the fastening ring (20) is formed of the material of the winding axis (100).
5. Roman shade according to any of the claims 1 to 4,
   characterized in that
   the ends (150a) of the drawing cords (150) are held on the cord collector (25) of the fastening ring (20) on the winding axis (100) by means of a knoted junction, a clamping joint or a clipped joint.
6. Roman shade according to any of the claims 1 to 5,
   characterized in that
   a fastening ring (20) with a cord collector (25) is placed on the winding axis (100) in its middle.
7. Roman shade according to any of the claims 1 to 5,
   characterized in that a number of fastening rings (20) with cord collectors (25) which corresponds to the number of drawing cords (150) is placed on the winding axis (100).

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