Roll screen

Abstract

To provide a roll screen in which wrinkles hardly occur on a screen.SOLUTION: A roll screen includes: a screen; a connection auxiliary member which is mounted on an end part of the screen by a fastener in which one part is fixed penetrating the screen; and a member to be connected which is connected to the end part of the screen via the connection auxiliary member. The connection auxiliary member has a movement margin at least in the longer direction of the connection auxiliary member between itself and the fastener.SELECTED DRAWING: Figure 3

Description

[Technical field]

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

[0002] 2. Description of the Related Art A conventional roller screen is known, for example, from Patent Document 1 below.

[0003] The roller screen shown in the document includes a screen, a long auxiliary connection member (locking plate) attached to the end of the screen, and a weight bar with a protruding piece provided in the upper space and an internal space divided into upper and lower spaces by a partition plate.The screen is configured so that the screen can be connected to the weight bar by inserting the end of the screen to which the auxiliary connection member is attached between the partition plate and the protruding piece. [Prior art documents] [Patent documents]

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

[0005] In this roll screen, the connecting auxiliary member is attached to the end of the screen by using double-sided tape, but in order to securely attach the connecting auxiliary member to the end of the screen, it is common to further use fasteners such as staples.

[0006] However, if the auxiliary connecting member is made of a material that expands and contracts due to temperature changes in the installation environment (for example, it expands due to solar heat during the day and contracts as it cools down at night), there is a problem that the expansion and contraction of the auxiliary connecting member affects the screen, causing wrinkles in the screen near the position where the staple is attached.

[0007] The present invention has been made in consideration of the above problems, and has an object to provide a roll screen that is less likely to develop wrinkles. [Means for solving the problem]

[0008] In order to achieve the above object, a roller blind according to one embodiment of the present invention comprises a screen, a connecting auxiliary member attached to an end of the screen by a fastener that is fastened by passing a part of the screen through the screen, and a connected member connected to the end of the screen via the connecting auxiliary member. The connecting auxiliary member has at least a longitudinal movement allowance between the connecting auxiliary member and the fastener.

[0009] According to this configuration, since the auxiliary connection member has a longitudinal movement margin between the stopper and the auxiliary connection member, it is possible to prevent the screen from being wrinkled even if the auxiliary connection member expands or contracts. Here, the auxiliary connection member is, for example, a screen stopper plate, and the non-connecting member is, for example, a weight bar.

[0010] The connection auxiliary member may have a plurality of insertion holes provided along the longitudinal direction so that a portion of the fastener can be inserted therethrough, and the insertion holes may be formed in a shape which allows the movement of the fastener to be ensured when a portion of the fastener is inserted through the insertion holes and penetrates the screen.

[0011] According to this configuration, the influence of expansion and contraction of the auxiliary connection member can be absorbed within the range of the longitudinal width of the insertion hole provided in the auxiliary connection member for inserting part of the fastener therethrough.

[0012] The fastener may be a substantially U-shaped staple having a pair of needle-shaped parts, and the multiple insertion holes may include a first insertion hole and a second insertion hole selected for inserting each of the pair of needle-shaped parts. Here, the first insertion hole has a first end at one end in the longitudinal direction and a second end at the other end, and the second insertion hole has a third end at one end in the longitudinal direction and a fourth end at the other end, and the distance between the first end and the fourth end is greater than the distance between the second end and the third end. In this case, the first insertion hole and the second insertion hole may be provided such that the distance between the first end and the fourth end is greater than the size of the staple in the width direction, and the distance between the second end and the third end is smaller than the size of the staple in the width direction.

[0013] According to this configuration, even if a general staple is used as the fastener, it is possible to prevent wrinkles from occurring in the screen.

[0014] The connection auxiliary member may have a plurality of pairs of the insertion holes along the longitudinal direction for inserting the pair of needle-shaped portions, respectively.

[0015] With this configuration, the position where the staple is to be attached can be easily determined from the position where the insertion hole is provided, improving workability when attaching the auxiliary connection member to the screen end and eliminating quality variations.

[0016] The fastener may be a generally U-shaped staple having a pair of needle-like portions. In this case, the auxiliary connection member is held between the pair of needle-like portions that penetrate the screen so that the staple is fastened across the auxiliary connection member in the short direction.

[0017] With this configuration, the auxiliary connecting member can be attached to the end of the screen in a manner that prevents wrinkles from occurring in the screen by a simple attachment method of simply hammering the staple across the auxiliary connecting member, without providing a through hole in the auxiliary connecting member for inserting the needle-shaped portion of the staple.

[0018] The connection auxiliary member may have a notch formed in its edge portion so that at least one of the pair of needle-shaped portions can be inserted therethrough, and the notch may have a shape which ensures the movement space between the staple when the needle-shaped portion is inserted through the notch and penetrates the screen.

[0019] With this configuration, when the staple is fastened across the auxiliary connection member in the short direction, the position where the staple is to be fastened can be easily grasped. Also, the auxiliary connection member can be prevented from falling out from between the needle-shaped parts of the staple.

[0020] The auxiliary connection member may be formed of a long thin plate of thermoplastic resin.

[0021] This structure allows the auxiliary connection member to be made of a material that expands and contracts when heated or cooled, eliminating the need to select a new material that does not expand or contract when heated, and allowing the auxiliary connection member to be made of a commonly used material such as PVC. Effect of the Invention

[0022] As described above, according to the present invention, it is possible to provide a roll screen that is less likely to cause wrinkles on the screen. However, this effect does not limit the present invention. [Brief description of the drawings]

[0023] [Figure 1] FIG. 1 is a front view of a roller blind in an unfolded (lowered) state according to a first embodiment of the present invention. [Diagram 2] 2 is a cross-sectional view taken along line AA in FIG. 1. [Diagram 3] FIG. 1 is a front view of the vicinity of the lower end of a roller blind according to a first embodiment of the present invention with a weight bar removed. [Figure 4] FIG. 4 is a partially enlarged view of FIG. [Diagram 5] 5 is a cross-sectional view of FIG. 4 taken along line B-B. [Figure 6]5A to 5C are diagrams illustrating a procedure for attaching a screen fastening plate of the roller screen according to the first embodiment of the present invention. [Figure 7] 3A to 3C are diagrams showing the state of the staple before and after contraction of the screen fastening plate of the roller screen according to the first embodiment of the present invention. [Figure 8] FIG. 7B is a cross-sectional view taken along line BB of FIG. [Figure 9] FIG. 2 is a diagram showing the wrinkle prevention effect of the roller screen according to the first embodiment of the present invention in comparison with a conventional example. [Figure 10] FIG. 11 is a front view of the vicinity of the lower end of a roller screen according to a first modified example of the first embodiment of the present invention with a weight bar removed. [Figure 11] FIG. 11 is an enlarged view of a screen fastening plate of a roller screen according to a second modified example of the first embodiment of the present invention. [Figure 12] 12 is a cross-sectional view taken along CC in FIG. [Figure 13] FIG. 11 is a front view of the vicinity of the lower end of a roller screen according to a second embodiment of the present invention with the weight bar removed. [Figure 14] FIG. 14 is a cross-sectional view taken along the line DD in FIG. [Figure 15] FIG. 11 is a front view of the vicinity of the lower end of a roller screen according to a modified example of the second embodiment of the present invention with the weight bar removed. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0024] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0025] First Embodiment First, a first embodiment of the present invention will be described.

[0026] [Roller screen configuration] Fig. 1 is a front view of a roll screen according to this embodiment in an unfolded (lowered) state, and Fig. 2 is a cross-sectional view taken along line AA in Fig. 1.

[0027] 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.

[0028] 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 a wall (not shown) with screws or the like via brackets 5. Side plates 6 are provided on both ends of the set frame 1.

[0029] The winding pipe 2 is rotatably supported by the set frame 1, and supports the screen 3 so that it can be wound up and unwound. As shown in FIG. 1, one end of the winding pipe 2 is supported by one side plate 6 via a pulley 7, and the other end is rotatably supported by the other side plate 6. The winding pipe 2 and the 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.

[0030] The screen 3 has an upper end connected to the winding pipe 2 so as to be capable of being wound up and unwound. The screen 3 rises when wound up on the winding pipe 2, and falls when unwound from the winding pipe 2.

[0031] The weight bar 4 uses its weight to keep the screen 3 in a tensile state. Caps 9 are attached to both ends of the weight bar 4.

[0032] As shown in Figure 2, a screen stopper plate 11 serving as a connecting auxiliary member is attached to the lower end of the screen 3, and the weight bar 4 (connected member) is connected to the lower end of the screen 3 via the screen stopper plate 11.

[0033] The screen fixing plate 11 is a long, thin plate made of a thermoplastic resin such as PVC (polyvinyl chloride) and is attached to the screen 3 by a plurality of staples 12 that penetrate the screen 3 and serve as fasteners over the entire width (X-direction) of the screen 3.

[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. A groove 44 through which the screen 3 can be inserted is formed in the upper part of the upper space 42, and a screen stopper plate 11 attached to the lower end of the screen 3 is inserted into the upper space 42 via the groove 44.

[0035] [Screen stopper plate details] Fig. 3 is a front view of the lower end vicinity of the roller screen 100 with the weight bar 4 removed. Fig. 4 is a partially enlarged view of Fig. 3. Fig. 5 is a BB cross-sectional view of Fig. 4.

[0036] As shown in these figures, the staple 12 for attaching the screen fastening plate 11 to the lower end of the screen 3 is a typical roughly U-shaped staple with a pair of needle-shaped parts. The screen fastening plate 11 has a plurality of pairs of insertion holes 13 along the longitudinal direction of the screen fastening plate 11 (the X direction in each figure) for inserting each of the pair of needle-shaped parts of the staple 12.

[0037] The screen fastening plate 11 has a movement allowance at least in the longitudinal direction (X direction) between it and the staple 12. In other words, the insertion hole 13 is formed in a shape that allows the screen fastening plate 11 to have the movement allowance when the insertion hole 13 penetrates the screen 3.

[0038] That is, as shown in FIG. 4, each of the pair of insertion holes 13 has a rectangular shape that is long in the longitudinal direction (X direction), and is formed so that the distance D1 between the left end of the left insertion hole 13 and the right end of the right insertion hole 13 is larger than the size of the staple 12 in the width direction (X direction), and the distance D2 between the right end of the left insertion hole 13 and the left end of the right insertion hole 13 is smaller than the size of the staple 12 in the width direction.

[0039] As a result, a space is created between the pair of needle-shaped portions of the staple 12 and the left and right ends of the pair of insertion holes 13, so that the screen fixing plate 11 has a movement margin equal to the space between the staple 12 and the screen fixing plate 11 in the longitudinal direction (X direction).

[0040] Therefore, even if the screen fixing plate 11 expands and contracts due to temperature changes in the installation environment (for example, it expands due to solar heat during the day and contracts as it cools down at night), as long as the expansion and contraction is within the above-mentioned range of movement, it will not affect the staple 12 or the screen 3 that it passes through, and therefore it is possible to prevent wrinkles from occurring in the screen 3 near the position where the staple 12 is attached due to the expansion and contraction.

[0041] In order to ensure the above-mentioned movement space, when the staple 12 is nailed to the screen 3, for example, a spacer is used to nail it to the screen 3, or a specified jig is used to give the staple 12 some play in the Z direction in each figure, and the staple 12 is not clamped too tightly to the screen 3, allowing the screen fixing plate 11 to move independently of the staple 12.

[0042] Also, taking into consideration the ease of operation when fastening the staples 12, the width (length in the X direction) of the pair of insertion holes 13 is set to a length that can sufficiently absorb the movement due to the expansion and contraction described above, for example, when the pair of needle-shaped portions of the staples 12 are fastened to the center thereof.

[0043] [Screen fixing plate installation procedure] FIG. 6 is a diagram showing a procedure for attaching the screen fixing plate 11 to the screen 3. As shown in FIG.

[0044] As shown in FIGS. 1A and 1B, first, the screen fixing plate 11 is set on the lower end of the screen 3 so that the left and right ends of the screen fixing plate 11 match with the left and right ends of the lower end of the screen 3.

[0045] Next, from the state shown in FIG. 1(b), as shown in FIG. 1(c), a pair of needle-shaped portions of the staple 12 are hammered into the screen 3 through each pair of insertion holes 13 of the screen fixing plate 11, thereby completing the installation.

[0046] In this case, since the pair of insertion holes 13 corresponds to the pair of needle-shaped portions of the staple 12, by checking the position where the insertion holes 13 are provided, the position where the staple 12 is to be hammered in can be easily ascertained, improving workability when attaching the screen fixing plate 11 to the lower end of the screen 3 and eliminating quality variations.

[0047] Normally, when the screen fixing plate 11 shrinks, both ends in the longitudinal direction (X direction) shrink toward the center, so in order to increase the amount of shrinkage absorbed when hammering the staples 12 into a pair of insertion holes 13, a pair of needle-shaped portions can be hammered into the right side of the insertion hole 13 near the left end, and into the left side of the insertion hole 13 near the right end.

[0048] [Screen stopper plate prevents wrinkles] Fig. 7 is a front view of the lower left side, showing the state of the staple before and after contraction of the screen stopper plate 11 of the roller screen 100 according to this embodiment. Fig. 7(a) shows the state before contraction, and Fig. 7(b) shows the state after contraction. Fig. 8 is a cross-sectional view taken along line BB of Fig. 7(b) (a cross-sectional view of the same plane as Fig. 4). Fig. 9 is a diagram showing the wrinkle prevention effect of the roller screen 100 according to this embodiment (Fig. 7(b)) in comparison with a conventional example (Fig. 9(a)).

[0049] As shown in Figure 7(a), before the screen fastening plate 11 contracts, the pair of needle-shaped portions of the staple 12 are positioned in the center of the pair of insertion holes 13, but as shown in Figure 7(b) and Figure 8, contraction causes the screen fastening plate 11 to move in the direction of the arrow in Figure 7(b) (to the right). However, because the insertion holes 13 ensure the above-mentioned movement, the staple 12 (and the screen 3 through which it passes) is not affected by the expansion and contraction (it is not pulled by the contracted screen fastening plate 11), and remains in its original fastening position and state.

[0050] That is, as shown in Fig. 9(a), in a conventional roller screen, wrinkles C occur near the weight bar W of the screen S due to shrinkage of the screen stopper plate. On the other hand, as shown in Fig. 9(b), in the roller screen 100 according to this embodiment, the insertion holes 13 absorb the effect of shrinkage, thereby preventing wrinkles from occurring.

[0051] [Modification of the first embodiment] FIG. 10 is a front view of the vicinity of the lower end of a roller blind 100 according to a first modified example of the first embodiment with the weight bar 4 removed.

[0052] In the above-described first embodiment, the insertion holes 13 are provided in pairs corresponding to the pair of needle-shaped portions of the staple 12. However, it is not necessary to provide the insertion holes 13 in pairs.

[0053] For example, as shown in the figure, a plurality of insertion holes 13 may be provided at predetermined intervals in the longitudinal direction (X direction) of the screen fixing plate 11.

[0054] This allows for flexible changes to the attachment position of the staple 12. It also makes it possible to accommodate the attachment of staples 12 of different sizes. For example, as shown in the figure, by selecting the insertion holes 13 on both ends of three consecutive insertion holes 13, a large staple 12a with a large width can be attached, and by selecting two consecutive insertion holes 13, a small staple 12b with a small width can be attached.

[0055] Fig. 11 is an enlarged view of a portion of the screen stopper plate 11 of a roller screen 100 according to a second modified example of the first embodiment, and Fig. 12 is a cross-sectional view taken along line CC of Fig. 11 .

[0056] In the above first embodiment and its first modified example, the staple 12 is shown as a fastener for fastening the screen fastening plate 11 to the screen 3, but the fastener is not limited to the staple 12.

[0057] For example, as shown in the figure, a pin 14 may be used as the stopper. The pin 14 has a head portion with a diameter larger than the length of the insertion hole 13 in the short direction (Y direction), and a shaft portion with a diameter smaller than the length of the insertion hole 13 in the short direction (Y direction). The length of the insertion hole 13 in the long direction (X direction) is designed to be a length that ensures a movement margin for the screen stopper plate 11 during the above-mentioned expansion and contraction. The shaft portion that penetrates the screen 3 via the insertion hole 13 is fixed by a receiver 15 on the back side of the screen 3.

[0058] In this modified example, when the pin 14 is fixed by the receiver 15, some play is provided between the pin 14 and the screen fixing plate 11 in the Z direction so that the screen fixing plate 11 can move independently of the pin 14 during contraction.

[0059] In this way, even when the pin 14 is used as a fastener, it is possible to prevent wrinkles from occurring in the screen 3 due to contraction of the screen fastening plate 11.

[0060] <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 the description thereof will be omitted.

[0061] Fig. 13 is a front view of the vicinity of the lower end of the roller blind 100 according to this embodiment with the weight bar 4 removed. Fig. 14 is a cross-sectional view taken along line DD of Fig. 13.

[0062] In each of the above-described embodiments, the screen fastening plate 11 is provided with an insertion hole 13, and the screen fastening plate 11 is fixed to the screen 3 by the staple 12 or the pin 14 via the insertion hole 13. However, the screen fastening plate 11 does not necessarily have to be provided with the insertion hole 13.

[0063] For example, as shown in both figures, a roughly U-shaped staple 12 having a pair of needle-shaped portions similar to those of the first embodiment described above may be held between a pair of needle-shaped portions penetrating the screen 3 so as to be fixed across the screen fixing plate 11 in its short direction (Y direction in the figure).

[0064] In this case as well, the staple 12 is given some play in the Z direction in each figure so that the staple 12 is not overly crimped to the screen 3 and the screen fixing plate 11 can move independently of the staple 12 when contracted.

[0065] In this embodiment, a string-like member may be used in place of the staple 12.

[0066] Thus, according to this embodiment, the screen fixing plate 11 can be attached to the lower end of the screen 3 so as to prevent wrinkles from occurring in the screen 3 by a simple attachment method of simply hammering the staple 12 across the screen fixing plate 11, without providing an insertion hole 13 in the screen fixing plate 11 for inserting the needle-shaped portion of the staple 12.

[0067] [Modification of the second embodiment] FIG. 15 is a front view of the vicinity of the lower end of a roller blind 100 according to a modified example of the second embodiment with the weight bar 4 removed.

[0068] As shown in the figure, in this modified example, compared to the second embodiment, a plurality of notches 16 are newly formed on both edges in the short direction (Y direction in the figure) of the screen fastening plate 11, and a pair of needle-shaped parts of the staple 12 are inserted into the notches 16. This makes it possible to ensure the above-mentioned movement allowance between the screen fastening plate 11 and the staple 12 when the pair of needle-shaped parts have been inserted through the notches 16 and penetrated the screen 3.

[0069] As shown in the figure, the notches 16 are formed at offset positions in the short side direction (Y direction) on both edges of the screen fastening plate 11, and the staple 12 is fastened at an angle to the short side direction (Y direction) so as to straddle the offset notches 16. However, the notches 16 may also be formed at positions perpendicular to the short side direction (Y direction) on both edges.

[0070] The cutout 16 is formed, for example, in a rectangular shape, but may be formed in other shapes (for example, trapezoidal) as long as the above-mentioned movement allowance can be secured. Also, the cutout 16 may be formed only in one of both edges (for example, only the upper edge) in the short direction (Y direction) of the screen stopper plate 11.

[0071] According to this modified example, by providing the cutout 16, it is easy to know the position to attach the staple 12 when the staple 12 is fastened across the screen fastening plate 11 in the short direction. Also, by inserting the needle-shaped portion of the staple 12 through the cutout 16, it is possible to prevent the screen fastening plate 11 from falling out between the needle-shaped portions.

[0072] <Other> The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit and scope of the present technology.

[0073] For example, the shapes and positions of the insertion holes 13 and the notches 16 are not limited to those shown in the above-mentioned embodiments.Furthermore, the fasteners are not limited to the staples 12 and the pins 14 shown in the above-mentioned embodiments.Furthermore, the shapes and structures of the screen fastening plate 11 and the weight bar 4 are not limited to those shown in the above-mentioned embodiments. [Explanation of symbols]

[0074] 1. Set frame 2...Winding pipe 3. Screen 4. Weight bar 9. Cap 11...Screen stopper plate 12... Staple 13...Through hole 14…Pin 15…Receiver 16…Notch 41...Partition plate 42...Upper space 43…Lower space 44…Groove 100...Roller screen

Claims

1. A screen and A connecting auxiliary member attached to an end of the screen by a fastener having a portion passing through the screen; A connected member that is connected to an end portion of the screen via the connection auxiliary member; A roll screen comprising: The auxiliary connection member has at least a longitudinal movement allowance between the auxiliary connection member and the stopper. Roller blind.

2. The roller blind according to claim 1, The connection auxiliary member has a plurality of insertion holes provided along the longitudinal direction so that a part of the fastener can be inserted therethrough, and the insertion holes are formed in a shape that ensures the movement of the fastener when the part of the fastener is inserted through the insertion holes and penetrates the screen. Roller blind.

3. The roller blind according to claim 2, The fastener is a generally U-shaped staple having a pair of needle-shaped portions, the plurality of insertion holes include a first insertion hole and a second insertion hole selected for inserting each of the pair of needle-shaped portions, The first insertion hole has a first end portion at one end in the longitudinal direction and a second end portion at the other end, the second insertion hole has a third end portion at one end in the longitudinal direction and a fourth end portion at the other end, a distance between the first end and the fourth end is greater than a distance between the second end and the third end; The first insertion hole and the second insertion hole are provided such that the distance between the first end and the fourth end is greater than the size of the staple in the width direction, and the distance between the second end and the third end is smaller than the size of the staple in the width direction. Roller blind.

4. The roller blind according to claim 3, The connection auxiliary member has a pair of insertion holes for inserting the pair of needle-shaped portions therethrough along the longitudinal direction. Roller blind.

5. The roller blind according to claim 1, The fastener is a generally U-shaped staple having a pair of needle-shaped portions, The auxiliary connection member is held between the pair of needle-shaped portions penetrating the screen so that the staple is fixed across the auxiliary connection member in the short direction. Roller blind.

6. The roller blind according to claim 5, The connection auxiliary member has a notch formed in an edge portion through which at least one of the pair of needle-shaped portions can be inserted, and the notch has a shape that ensures the movement between the needle-shaped portion and the staple when the needle-shaped portion is inserted through the notch and penetrates the screen. Roller blind.

7. A roller blind according to any one of claims 1 to 6, The auxiliary connection member is formed of a long thin plate of thermoplastic resin. Roller blind.

Images