Roll screen

Abstract

To provide a roll screen which is less likely to wrinkle.SOLUTION: A roll screen includes a winding pipe, a screen, a plate, a weight bar, and at least one spacer. The winding pipe is rotatably supported, the screen is connected at its upper end to the winding pipe so as to be able to be wound and unwound, and the plate is attached to a lower end of the screen. The weight bar has an opening formed along its longitudinal direction into which the plate can be inserted, and the lower end of the screen is connected by inserting and locking the plate through the opening. The spacer is provided between the opening and the plate at a portion in the longitudinal direction so as to separate the opening and the plate, thereby partially expanding the screen.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a roller blind. [Background technology]

[0002] BACKGROUND ART A conventional roller blind is known, for example, from Patent Document 1 below.

[0003] The roller blind shown in Patent Document 1 comprises a screen and a long weight bar with a space formed inside. A locking plate is attached to the bottom end of the screen, and the bottom end of the screen with the locking plate attached can be inserted into the weight bar to connect the bottom end of the screen to the weight bar. With this configuration, tension due to the load of the weight bar always acts on the screen. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Jikko No. 63-24785 Summary of the Invention [Problem to be solved by the invention]

[0005] However, with this type of roll screen, there was a problem in that approximately V-shaped wrinkles could occur in the screen due to bending of the winding pipe to which the upper end of the screen is connected, the screen material, or the fabric structure that makes up the screen.

[0006] The present invention has been made in view of the above-mentioned problems, and has an object to provide a roll screen that is less likely to wrinkle. [Means for solving the problem]

[0007] To achieve the above object, a rolling screen according to one embodiment of the present invention comprises a winding pipe, a screen, a plate, a weight bar, and at least one spacer. The winding pipe is rotatably supported, the upper end of the screen is connected to the winding pipe so as to be able to be wound and unwound, and the plate is attached to the lower end of the screen. The weight bar has an opening formed along its longitudinal direction into which the plate can be inserted, and the lower end of the screen is connected by inserting and locking the plate through the opening. The spacer is provided between the opening and the plate at a portion in the longitudinal direction so as to separate the opening and the plate, thereby partially expanding the screen.

[0008] With this configuration, the spacers can partially increase the amount of retraction of the screen into the weight bar. Therefore, even if wrinkles occur in the screen with the weight bar attached, the spacers can partially expand the screen, reducing or eliminating the wrinkles. Furthermore, because the spacers can be easily added later, it is possible to quickly address wrinkles in the roll screen.

[0009] The spacer may be interposed between the edge of the opening and the plate.

[0010] This configuration allows the use of a conventional weight bar that engages the plate at the edge of the opening, thereby achieving the wrinkle reduction effect described above without requiring any design changes to existing roller blinds.

[0011] The spacer may be inserted between the front edge of the opening and the plate on the front side of the screen.

[0012] The spacer may have a cylindrical shape that is elongated in the longitudinal direction.

[0013] With this configuration, when attaching the spacer to the weight bar from above the opening, the spacer can be inserted into the weight bar by rolling it over the screen, thereby improving the workability when attaching the spacer.

[0014] The spacers may be inserted between the plate and front and rear edges of the opening on the rear side of the screen so as to close a portion of the opening.

[0015] This configuration allows the use of a conventional weight bar that engages the plate at the edge of the opening, thereby achieving the wrinkle reduction effect described above without requiring any design changes to existing roller blinds.

[0016] The spacer may be inserted between the opening and the plate near at least one of the ends of the weight bar.

[0017] With this configuration, the widthwise ends of the screen are partially stretched, thereby reducing or eliminating the V-shaped wrinkles that are typical of roller blinds.

[0018] The spacer may be an elastic member formed so as to be able to be inserted from above the opening by elastic deformation.

[0019] With this configuration, even if the spacer is made larger to some extent in order to increase the amount of retraction of the screen into the weight bar, it can be inserted into the weight bar from above the opening by being elastically deformed. [Effects of the Invention]

[0020] As described above, according to the present invention, it is possible to provide a roller blind that is less likely to wrinkle, but this effect does not limit the present invention. [Brief explanation of the drawings]

[0021] [Figure 1]1 is a front view of a roller blind according to a first embodiment of the present invention in an unfolded (lowered) state. [Figure 2] FIG. 1 is a front view of a conventional roller blind in an unfolded (lowered) state. [Figure 3] FIG. 2 is an exploded perspective view of the vicinity of the end of the weight bar of the roller blind. [Figure 4] 2 is a cross-sectional view taken along line AA and line BB in FIG. 1. [Figure 5] FIG. 2 is a partial vertical cross-sectional view of the weight bar. [Figure 6] 10A to 10C are diagrams showing a procedure for attaching a spacer to the weight bar. [Figure 7] FIG. 10 is a partial vertical cross-sectional view of a weight bar of a roller blind according to a second embodiment of the present invention. [Figure 8] FIG. 10 is a cross-sectional view in the short side direction of a weight bar of a roller blind according to a third embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0022] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0023] First Embodiment First, a first embodiment of the present invention will be described.

[0024] [Roll screen configuration] Fig. 1 is a front view of the roller blind according to this embodiment in an unfolded (lowered) state, and Fig. 2 is a front view of a conventional roller blind in an unfolded (lowered) state.

[0025] As shown in FIG. 1, the roller blind 100 has a set frame 1, a winding pipe 2, a screen 3, and a weight bar 4.

[0026] The set frame 1 is a member that supports the screen 3. As shown in Fig. 1, the set frame 1 is a long member that is fixed to a window frame or wall (not shown) with screws or the like via brackets 5. Side plates 6 are provided on both ends of the set frame 1.

[0027] The winding pipe 2 is rotatably supported by the set frame 1, and supports the screen 3 so that it can be wound and unwound. As shown in FIG. 1, one end of the winding pipe 2 is supported by one of the side plates 6 via a pulley 7, and the other end is rotatably supported by the other side plate 6. The winding pipe 2 and pulley 7 rotate together. A loop-shaped operating chain 8 is wound around the pulley 7. The rotation of the pulley 7 is controlled by pulling down the front or rear side of the operating chain 8. Thus, the rotation of the winding pipe 2 is controlled.

[0028] The screen 3 has an upper end connected to the winding pipe 2 so that it can be wound and unwound. The screen 3 rises when wound onto the winding pipe 2, and falls when unwound from the winding pipe 2.

[0029] The weight bar 4 holds the screen 3 in a tensile state by its weight. Caps 9 are attached to both ends of the weight bar 4.

[0030] Here, as shown in Figure 2, conventional roll screens have a problem in that a slight bending of the winding pipe to which the upper end of the screen is connected or an imbalance in the load acting on the screen can cause approximately V-shaped wrinkles W to appear on the screen.

[0031] 1, in this embodiment, a spacer 10 is provided inside the weight bar 4 to partially stretch the screen 3, thereby suppressing the occurrence of the wrinkles W. The spacer 10 will be described in detail below.

[0032] [Spacer details] Fig. 3 is an exploded perspective view of the vicinity of the lower end of the weight bar 4 of the roller blind 100. Fig. 4 is a cross-sectional view taken along line AA (Fig. 3(A)) and a cross-sectional view taken along line BB (Fig. 3(B)) of Fig. 3. Fig. 5 is a partial vertical cross-sectional view of the weight bar 4.

[0033] As shown in these figures, a screen fixing plate 11 is attached to the lower end of the screen 3. The screen fixing plate 11 is a long, thin plate made of, for example, resin, and is fixed to the screen 3 by, for example, a plurality of staples S, and is provided over the entire length of the screen 3 in the width direction (X direction).

[0034] The inside of the weight bar 4 is divided into an upper space 42 and a lower space 43 by a partition plate 41, and the upper space 42 is configured to be able to accommodate the lower end of the screen 3. An opening 44 through which the screen 3 passes is formed in the upper part of the upper space 42 along the longitudinal direction (X direction) of the weight bar 4.

[0035] The screen stopper plate 11 at the lower end of the screen 3 is inserted into the upper space 42 of the weight bar 4 through the opening 44. This connects the lower end of the screen 3 to the weight bar 4.

[0036] The cap 9 also has an insertion portion 91 that is inserted into the openings (lower spaces 43) at both ends of the weight bar 4, and a closing portion 92 that closes the openings.

[0037] In this embodiment, the spacer 10 is, for example, a cylindrical elastic member (such as a vinyl tube) that is long (for example, about 150 mm) in the longitudinal direction (X direction). The spacer 10 is provided near at least one of both longitudinal ends of the weight bar 4 depending on the occurrence state of the V-shaped wrinkles W. FIG. 1 shows an example in which the spacer 10 is provided at both ends.

[0038] The spacer 10 is inserted from above the opening 44 by elastic deformation between the opening 44 and the screen stop plate 11 so as to separate the opening 44 and the screen stop plate 11 in a portion of the longitudinal direction.

[0039] 4, the spacer 10 is inserted between the front edge 44a of the opening 44 and the screen stopper plate 11 on the front side (left side in the figure) of the screen 3. The upper space 42 has, for example, a substantially hexagonal shape in cross section, and the screen stopper plate 11 is fixed to a corner of its bottom surface, and the spacer 10 is fixed to the corner immediately above that.

[0040] As a result, at the location where the spacer 10 is provided, the portion of the screen 3 where the spacer 10 is provided is pulled downward (in the Y direction) and expanded by the distance from the opening 44 to the bottom surface of the upper space 42 (for example, approximately 5 to 15 mm), and as a result, the wrinkles W can be reduced or eliminated.

[0041] [Spacer installation procedure] FIG. 6 is a diagram showing the procedure for attaching the spacer 10 to the weight bar 4. As shown in FIG.

[0042] First, as shown in Figure 1(A), with the screen stop plate 11 engaged with the front edge 44a of the opening 44, as shown in Figure 1(B), the spacer 10 is inserted into the weight bar 4 while being elastically deformed (squashed) between the front edge 44a and the screen 3 (rear edge 44b) by rolling it in the direction of the arrow on the screen 3, and then moved toward the inner surface of the front edge 44a.

[0043] Then, as shown in Fig. 1C, the spacer 10 is inserted and fixed between the front edge 44a and the screen stopper plate 11. As a result, the screen stopper plate 11 is pulled into the bottom corner of the upper space 42 and fixed there, and the screen 3 is expanded in that portion.

[0044] In this way, because the spacer 10 is a long cylinder, it can be inserted into the weight bar 4 by rolling it over the screen 3, improving the workability when attaching the spacer 10. Furthermore, even if the diameter of the spacer 10 is increased to some extent in order to increase the amount of retraction of the screen 3 into the weight bar 4, it can be inserted into the weight bar 4 from above the opening 44 by elastically deforming it.

[0045] [summary] As described above, according to this embodiment, the spacer 10 can partially increase the amount of retraction of the screen 3 into the weight bar 4. Therefore, even if wrinkles W (see FIG. 2) occur in the screen 3 with the weight bar attached, the spacer 10 can partially expand the screen 3, thereby reducing or eliminating the wrinkles W, as shown in FIG. 1. Furthermore, because the spacer 10 can be easily attached later, it is possible to quickly deal with a roller blind 100 in which wrinkles W occur in the screen 3.

[0046] In addition, since a general weight bar 4 can be used to engage the screen stop plate 11 with the front edge 44a of the opening 44, the wrinkle reduction effect can be achieved without requiring any design changes to the existing roller blind.

[0047] Second Embodiment Next, a second embodiment of the present invention will be described. In this and subsequent figures, parts having the same configurations and functions as those in the first embodiment are given the same reference numerals, and descriptions thereof will be omitted.

[0048] FIG. 7 is a partial vertical cross-sectional view (corresponding to FIG. 5) of the weight bar 4 of the roller blind 100 according to this embodiment.

[0049] In the above embodiment, an example has been shown in which one spacer 10 is provided at at least one of both ends in the longitudinal direction (X direction) of the weight bar 4. As shown in the figure, in this embodiment, a plurality of spacers 10 may be provided at at least one of the both ends.

[0050] In this case, the length of each spacer 10 may be the same, or different sizes may be used.

[0051] As described above, according to this embodiment, by attaching a plurality of spacers 10, it is possible to adjust the number of spacers 10 to find the optimum attachment mode for reducing or eliminating wrinkles depending on the occurrence of wrinkles.

[0052] Third Embodiment Next, a third embodiment of the present invention will be described.

[0053] FIG. 8 is a cross-sectional view in the short side direction of the weight bar of the roller blind according to this embodiment (a view corresponding to the AA cross-sectional view in FIG. 4).

[0054] In the above-described embodiment, the spacer 10 is shown to have a long cylindrical shape, but in this embodiment, the spacer 10 is formed in a long triangular cylindrical shape.

[0055] In the above-described embodiment, the spacer 10 was inserted between the front edge 44a of the opening 44 and the screen stopper plate 11 on the front side of the screen 3, but in this embodiment, the spacer 10 is inserted between the front edge 44a and the rear edge 44b of the opening 44 and the screen stopper plate 11 on the rear side of the screen 3 (the right side of the figure) so as to block part of the opening 44.

[0056] More specifically, the width (length in the Z direction in the figure) of the upper surface of the spacer 10, one of the three surfaces that make up the triangular tube, is formed to be larger than the distance between the front edge 44a and the rear edge 44b, thereby blocking the opening 44 at its attachment point.

[0057] In addition, the rear corner of the spacer 10 engages with the inner surface of the rear edge 44b, and the front corner thereof clamps and fixes the screen 3 between itself and the front edge 44a from the rear side, and the rear surface of the three surfaces abuts against the screen stop plate 11, fixing the screen stop plate 11 to the bottom corner of the upper space 42.

[0058] As a result, at the location where the spacer 10 is provided, the portion of the screen 3 where the spacer 10 is provided is pulled downward (in the Y direction) and expanded by the distance from the opening 44 to the bottom surface of the upper space 42, thereby reducing or eliminating the wrinkles W.

[0059] In this embodiment, the spacer 10 may be inserted from the side of the weight bar 4 with the cap 9 removed, or may be inserted from the opening 44 by adjusting the insertion angle.

[0060] [Variations] The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit and scope of the present technology.

[0061] The height and width of the roller blind 100 shown in each of the above-described embodiments can be changed as appropriate, and the length, shape, etc. of the spacer 10 can also be changed accordingly.

[0062] Furthermore, the shape and size of the upper space 42 of the weight bar 4 and the screen stopper plate 11 are not limited to those described and illustrated above, but can be changed as appropriate, and the length, shape, etc. of the spacer 10 can also be changed as appropriate accordingly.

[0063] In addition, the shape, size, length, etc. of the spacer 10 are not limited to those described above and shown in the figures, and any shape may be used as long as it is capable of being placed between the opening 44 of the weight bar 4 and the screen stop plate 11 to separate them and partially expand the screen 3. [Explanation of symbols]

[0064] 2...Winding pipe 3...Screen 4...Weight bar 9...Cap 10...Spacer 11...Screen stopper plate 41...Partition board 42...Upper space 43...Lower space 44…Aperture 44a...front edge 44b…Back edge 100...Roller blinds W...wrinkles S...Staple

Claims

1. a rotatably supported take-up pipe; a screen whose upper end is connected to the winding pipe so as to be capable of being wound and unwound; a plate attached to the lower end of the screen; a weight bar having an opening formed along the longitudinal direction into which the plate can be inserted, and the plate is inserted through the opening and locked to connect the lower end of the screen; at least one spacer provided between the opening and the plate to separate the opening and the plate in a portion in the longitudinal direction, the spacer causing the screen to partially expand; A roller blind equipped with:

2. The roller blind according to claim 1, The spacer is inserted between the edge of the opening and the plate. Roller blind.

3. The roller blind according to claim 2, The spacer is inserted between the front edge of the opening and the plate on the front side of the screen. Roller blind.

4. The roller blind according to claim 3, The spacer has a cylindrical shape that is long in the longitudinal direction. Roller blind.

5. The roller blind according to claim 2, The spacers are inserted between the front and rear edges of the opening and the plate on the rear side of the screen so as to close a part of the opening. Roller blind.

6. The roller blind according to claim 1, The spacer is inserted between the opening and the plate near at least one end of the weight bar. Roller blind.

7. The roller blind according to claim 1, The spacer is an elastic member that is formed so as to be able to be inserted from above the opening by elastic deformation. Roller blind.

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