JP2007275594A - Gather curtain - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a gather curtain that is easily manufactured and functionally reliable. <P>SOLUTION: The gather curtain possesses a winding shaft 3 and a plurality of pull cords 5 which are fastened in each case at an upper end to the winding shaft 3 by means of a holding element 13. Starting from this holding element 13, the pull cords 5 can in each case be wound onto the winding shaft 3. The holding elements 13 are in each case arranged releasably on a winding body 4 which has a winding surface 12 between two guide parts 23, 23' arranged at a distance from one another in such a way that the pull cords 5 can in each case be wound directly onto the winding body 4 without deflection. The two guide parts 23, 23' control the pull cords 5 such that the latter are wound between these in one or more layers. The winding bodies 4 are preferably designed as half-shells and are latched releasably in a groove 6 of the winding shaft 3. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a gather shaft having a plurality of pull cords each having an upper end fixed to the winding shaft by the holding element so that the winding shaft and the holding element can be directly wound around the winding shaft without deflection. Regarding curtains.

  This general type of gathered curtain became known in the prior art DE 4137266A. This gather curtain has a hollow winding shaft for winding a pull cord. Each of the winding shafts has a hollow portion at a position where the pull cord is fixed, and a tenon-shaped holding element is removably inserted into the hollow portion. A pull cord is secured to each of these holding elements. When the winding shaft rotates about its longitudinal axis, the pull cords are respectively wound around the surface of the winding shaft starting from the holding element. This gathered curtain has the advantage that the curtain fabric can be easily removed for washing and fixed again.

  A similar gather curtain became known from DE 4128485A. In this curtain, the upper ends of the pull cords are respectively fixed to the winding shaft by a touch-and-close type strip. The winding shaft has a touch-and-close cover at each of the fixed positions. As a result, the holding element is easily removed from the winding shaft and is also easily fixed.

  EP0834275A similarly shows a gather curtain having a wound shaft. In order to wind up the pull cord, a pull cord collector is disposed on the winding shaft, and an end of the pull cord is fixed to the winding shaft. Each pull cord is connected to this cord collector through a guide ring. Each pull cord is deflected by a guide before reaching the pull cord collector.

  WO 2005/028801 discloses a gather curtain winding device having a drum-type winding body. The pull cord is detachably fixed to the winding body by a holding element. At a distance from the holding element, the winding device has a pull cord guide. This winding device is relatively complicated to manufacture and assemble. Further, as compared with a general gather curtain, each pull cord has to be detached from the guide, so that it is quite difficult to remove the pull cord from the winding shaft. Correspondingly, the installation is also complicated. In order to wind or unwind the pull cord, the rolls must be rotated in predetermined directions.

  An object of the present invention is to provide a gather curtain that is a general type of gather curtain as described above and that is functionally reliable while being easy to manufacture.

  In a general gather curtain, the object of the present invention is that the holding elements are respectively detachably arranged in a winding body having a winding surface between two guide parts arranged at a distance from each other, This is achieved by allowing the pull cord to be wound directly around the winding surface of the winding body without being deflected between the two guide portions. The gather curtain according to the invention does not require deflection and each pull cord is wound between the two guide parts in an orderly and functionally reliable manner. To remove the curtain fabric, it is only necessary to remove the holding element. In winding, the winding shaft can be selectively rotated in either one or the other direction, which substantially simplifies operation.

  In particular, according to one aspect of the present invention, when the winding body is designed in the shape of a shell, and is arranged and fixed radially on the winding shaft, it is possible to manufacture cost-effectively and easily.

  According to one aspect of the present invention, the winding shaft has a groove extending in the longitudinal direction on its outer surface, and the winding body is preferably fixed to the groove so as to be displaceable. According to one aspect of the present invention, particularly simple windings can be secured when the windings are releasably latched in grooves. The grooves allow easy but accurate positioning of the winding and, ultimately, all the pull cords. Such a groove can be manufactured considerably more easily in the case of a profile than in a hollow part or the like. The number of rolls may be freely selected according to the curtain fabric. Accordingly, a gathered curtain having a different number of rolls is possible without noticeable changes. Furthermore, the winding body may be freely arranged along the winding shaft.

  According to one aspect of the invention, the windings each have an orifice for receiving the holding element in the wall forming the winding surface. Preferably, the holding elements are each dish-shaped and the outside is flush with the winding surface.

  According to one aspect of the invention, each retaining element is removably secured to the winding shaft. Preferably, it is similarly fixed in the groove of the winding shaft. Preferably, the retaining element is latched in this groove. This allows a very simple removal and re-fixation of the holding element. As a result, the roll and the holding element can be attached and removed very easily without the use of tools.

  According to one aspect of the invention, the pull cords are each fixed asymmetrically with respect to the holding element. Thus, each of the pull cords can be arranged outward from the center of the wound body and close to one of the guide portions. Preferably, the holding elements are designed such that each is inserted only in one direction into the corresponding orifice of the winding.

  According to one aspect of the invention, the mounting is particularly simple when the winding is releasably secured to the winding shaft. Preferably, the winding body is designed to be fixed radially on the winding shaft. Preferably, the winding is fixed, preferably latched, in the groove of the winding shaft.

  According to an aspect of the present invention, each of the guide portions has a guide surface on the inner side, and the distance between the guide surfaces increases toward the outer side. In this way, the guide surface can be optimally designed for pull cord control.

  Further advantageous features of the invention can be understood from the dependent claims, the following detailed description of the invention and the drawings.

  According to FIG. 1, the gather curtain 1 has at least two pull cords 5. The pull coats 5 are arranged at a distance from each other, and each is connected to the curtain fabric 2 at the lower end (not shown). This is because, as a result of the rotation of the winding shaft 3, the curtain fabric 2 is folded and raised by a known method. 2 and 7, the winding shaft 3 is attached to the channel 9 of the curtain rail 8. For attachment, it is arranged at the end of a support part 19 (only one of which is shown in FIG. 7) of the curtain rail 8. In order to rotate the winding shaft 3, as shown in FIG. Although not shown here, the driving wheel 20 is locked with a member that is permanently driven, for example, a bead chain. However, another driving member, such as an electric member, may be considered here. The curtain rail 8 is directly fixed to the ceiling of the building by a known method. The curtain fabric 2 is detachably fixed to the curtain rail at its upper end (not shown here) using a known method, for example, a touch-and-close fastener.

  The pull cords 5 are fixed to the holding elements 13 at their upper ends so that the curtain fabric 2 can be detached from the winding shaft 3 for washing, and the holding elements are respectively inserted into the orifices 11 of the winding body 4. In order to fix the holding element 13, according to FIG. 5, each holding element 13 has a fixing element 14 in its interior 16, said locking element 14 being locked in the groove 6 of the winding shaft 3 and detachable. Is latched on. Obviously, the fixing element 14 is designed as a latching web parallel to each other. These are formed integrally on the holding element 13. According to FIG. 5, there are grooves 17 between these fixing elements 14. The groove 17 increases the resiliency of the wall 15 and as a result allows for easier detachment and latching. The dish-shaped wall 15 is designed such that at least one gap 21 is formed between the wall and the orifice 11. In the gap 21, the holding element 13 is held in the lateral direction so that it can be detached from the winding shaft 3. According to FIG. 2, the groove 6 has two inwardly projecting ribs 6a, behind which the fixing elements 14 are respectively locked.

  Each holding element 13 has a passage 18 for one end 5 a of the pull cord 5. The corresponding end 5 a has a knot (not shown here) on the inner side 16, and the end 5 a is firmly connected to the holding element 13.

  However, another connection between the holding element 13 and the pull cord 5 may be considered. For example, use of a clamp device or fixing by welding may be considered. Obviously, the passage 18 is arranged asymmetrically in the vicinity of one edge 22. According to FIG. 1, the end 5 a of the pull cord 5 is disposed near the guide portion 23 of the wound body 5 by this arrangement. Therefore, the other guide portion 23 'is at a long distance from the end 5a. A mark 26 in the shape of a two-way arrow is located on the winding body 4 at a distance from the passage 18 and approximately at the center of the guide portions 23 and 23 '. Each of these marks is above the pull cord 5 extending in the vertical direction. Therefore, before reaching the passage 18, the pull cord 5 is inclined with respect to the vertical line by a small distance.

  The winding surface 12 is located outside the respective winding bodies 4 and between the two guide portions 23, 23 '. This is in the same plane as the outer side 25 of the holding element 13, respectively.

  As described above, the winding 4 that receives the holding element 13 in an unsymmetrical manner has a fixing element 10 behind it according to FIG. The fixing elements 10 are arranged at a distance from each other and are designed in the same way as the fixing portion 14 as a latch element, and according to FIG. The shell-shaped winding body surrounds the winding shaft 3 at an angle of about 180 degrees. However, this angle may be smaller or larger than 180 degrees as long as it is up to 360 degrees. Even when the enclosed angle exceeds 180 degrees, the wound body 4 can be placed radially on the winding shaft 3. For this purpose, the winding body may be elastic or may be formed from a plurality of parts. However, preferably, as described above, the roll 4 is in the shape of a shell and is manufactured in one piece from a suitable plastic. The winding surface 12 is preferably smooth, but may be provided with grooves or threads, for example, to guide the pull cord 5. Each of the outer sides 25 of the holding elements 13 is also an area of the winding surface 12. The winding surface 12 may also be designed conically. In that case, the minimum diameter is located in the region of the passage 18. Preferably, the wall 15 of the winding 4 between the two guide parts is designed to have a relatively small wall thickness, for example several millimeters. Thereby, the winding surface 12 forms a substantially continuous cross section with the surface area 7 of the adjacent winding shaft 3. Thus, in the wound state, the pull cord 5 is partially supported by the winding surface 12 of the wound body 4 and partially supported by the surface region 7 of the winding shaft 3.

  According to FIG. 7, the winding shaft 3 is rotatably mounted in the curtain rail 8. At the end portion shown in FIG. 7, a support portion 19 is provided for attachment. The support portion 19 is located on the curtain rail 8 at one end thereof. The winding shaft 3 is driven in one rotation direction or another rotation direction by the drive wheel 20. In this case, each of the pull cords 5 is wound around the wound body 4, and as a result, the curtain fabric 2 is creased up. The guide part 23, which is immediately next to the passage 28 and thus next to the end 5a of the pull cord, has the corresponding pull cord 5 remaining on the winding surface 12 by the inner guide surface 24, and the pull cord 5 is wound around it. Prevent the situation of lighting. During winding, when the pull cord 5 reaches the other guide portion 23 ′, another guide portion 24 ′ changes the winding direction of the pull cord on this, thereby ensuring that the second winding layer is secured. It is formed. As a result, the pull cord 5 changes its direction on the guide surfaces 24 and 24 ′ and reciprocates in the longitudinal direction of the winding shaft 3 during winding. While the curtain fabric 2 is rewound, that is, lowered, the corresponding operations are performed in reverse order.

Mounting of the winding body 4 is very simple. The winding body 4 is positioned radially on the winding shaft 3 and is latched in the groove 6. The wound body 4 placed at a predetermined position can be continuously displaced in the longitudinal direction of the winding shaft 3 to the target position. With the above-described mark 26, the exact position of the wound body 4 can be easily found. In the intended position, the winding 4 is sufficiently retained in the groove 6 by the friction of the fixing element 10. The holding element 13 is easily latched as well. As already mentioned above, in order to wash the curtain fabric 2, the holding element 13 can easily be removed and reattached easily. As mentioned above, the winding 4 and the holding element 13 are preferably fixed by latching. However, basically other fixing means may be considered. For example, fixing with a magnet, a suitable adhesive, shrink fitting, or a screw is possible. The cross-section of the winding shaft 3 is preferably substantially circular and cylindrical, but other cross-sectional shapes are possible.

It is a schematic three-dimensional view of the winding shaft of a gather curtain. It is a figure which shows a winding shaft and a curtain rail. It is a three-dimensional schematic diagram of a wound body. It is a further figure which shows a winding body. It is a three-dimensional view of a holding element. FIG. 3 is a schematic view of attachment of a winding body and a holding element. It is a partial three-dimensional view of a curtain rail and a wound body.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Gather curtain 2 Curtain cloth 3 Winding shaft 4 Winding body 5 Pull cord 5a Pull cord end 6 Groove 6a Rib 7 Surface area 8 Curtain rail 9 Channel 10 Fixing element 11 Orifice 12 Winding surface 13 Holding element 14 Fixing part 15 Wall 16 Inner 17 Groove 18 Passage 19 Support part 20 Drive wheel 21 Gap 22 Edge 23 Guide part 24 Guide surface 25 External 26 Mark

Claims (15)

  The upper end (5) of the winding shaft (3) and the winding shaft (3) by the holding element (13) so as to be wound directly from the winding shaft (3) and the holding element (13) onto the winding shaft (3) without deflection. Is a gather curtain having a plurality of pull cords (5) each fixed to the holding element (13) so that the pull cords (5) can be wound directly on the winding body (4) without being deflected. ) Are detachably arranged on the winding body (4) having the winding surface (12) between the two guide portions (23, 23 ') arranged at a distance from each other. A gathered curtain characterized by   The gathered curtain according to claim 1, characterized in that the wound body (4) is designed in the shape of a shell.   The said winding shaft (3) has the groove | channel (6) extended in a longitudinal direction on the outer side, and the said winding body (4) is being fixed to the said groove | channel (6), The characterized by the above-mentioned. Gather curtain as described in.   The gather curtain according to claim 3, wherein the winding bodies (4) are releasably latched in the grooves (6), respectively.   Gather curtain according to any one of the preceding claims, characterized in that the windings (4) each have an orifice (11) for receiving a holding element (13).   6. Gather curtain according to claim 5, characterized in that the holding element (13) is designed in the form of a dish and is preferably flush with the winding surface (12) of the winding body (4) at the front surface.   Gather curtain according to any one of the preceding claims, characterized in that the holding elements (13) are each removably fixed to the winding shaft (3).   Gather curtain according to claim 7, characterized in that the holding elements (13) are removably fixed in the grooves (6), respectively.   The winding body (4) and / or the holding element (13) each have at least one fixing element (10, 14) on the inside, whereby they are releasably fixed to the winding shaft (3), and 9. Gather curtain according to claim 7 or 8, characterized in that, in particular, the groove (6) is detachably and displaceably latched.   Each of the wound bodies (4) has two guide portions (23, 23 ') which are arranged at a distance from each other and have guide surfaces (24, 24') for controlling the pull cord (5). The gathered curtain according to claim 1, wherein the gathered curtain is characterized in that   The gather curtain according to any one of claims 1 to 10, characterized in that the wound body (4) is continuously displaceable in the longitudinal direction of the wound shaft (3).   Gather curtain according to any one of the preceding claims, characterized in that the pull cords (5) are fixed asymmetrically to the holding elements (13), respectively.   The guide surfaces (24, 24 ') for controlling the pull cord (5) are designed such that the distance between them increases towards the outside in the circumferential direction of the winding shaft (3), respectively. The gather curtain according to any one of claims 10 to 12, wherein the gather curtain.   Gather according to any one of the preceding claims, characterized in that marks (26) for positioning the winding body (4) are respectively arranged on the winding body (4). curtain.   Gather curtain according to claim 14, characterized in that the indicia (26) are each located approximately in the middle between the two guide parts (23, 23 ').