JP6370679B2 - Roll screen - Google Patents

Description

  The present invention relates to a roll screen having a double-structured screen in which one end is fixed to a support bar via a screen fixing member, and the other end is wound around a winding roller so as to be fed back and folded at the lower end. is there.

  Conventionally, a pair of support brackets are provided opposite to each other at both ends of the support bar, both ends of the take-up roller are rotatably attached to these support brackets, and an adjustment cord for rotating the take-up roller is provided on one side. One end of the screen provided between the support bracket and the take-up roller, in which the translucent and non-translucent portions are alternately arranged, is fixed to the take-up roller and the other end is fixed to the support bar, and further tension is applied to the screen. A blind for adjusting lighting in which a weight main body for giving is provided at a lower end portion of a screen is disclosed (for example, see Patent Document 1). In this blind, the transparent portion and the opaque portion are partially overlapped by folding the screen, and an extended tongue for attaching one end of the screen is integrated with the support bar at the lower end of the support bar. Formed. Further, the take-up roller is provided with one or more seats, a fixed part is provided at one end of the screen, and this fixed part is mounted in the seat of the take-up roller. Further, a seat groove is provided on the extension tongue, and another fixing part is provided on the other end of the screen, and this other fixing part is mounted in the seat groove of the extension tongue. Thereby, a screen can be installed in an extension tongue part and a winding roller, without adding a screw, a band, and another fixing member.

  In the blind constructed as described above, the adjustment cord is pulled rightward or leftward, whereby one end of the screen attached in the seat groove of the winding roller is wound or fed, and the extension tongue portion is The other end of the screen mounted in the seat groove is kept fixed to the extension tongue. As a result, the range where the transparent and opaque portions of the screen overlap can be freely adjusted.

Japanese Patent Laying-Open No. 2006-29072 (Claim 1, paragraphs [0001], [0054] to [0059], [0076], FIG. 5)

  However, in the blind shown in the above-mentioned conventional patent document 1, the screen is folded back to form a double, and the double screen is moved relative to each other. Therefore, the flatness of the screen itself, or how to cut and assemble the screen As a result, the finished state of the blind is affected, and the screen may be distorted or wavy, which may impair the appearance of the screen.

  An object of the present invention is to provide a roll screen that can reduce or eliminate distortions and undulations generated in the screen. Another object of the present invention is to provide a roll screen that can reduce or eliminate distortions and undulations generated in the screen with a relatively simple operation.

  As shown in FIGS. 1, 2, 5 and 6, the first aspect of the present invention is a support bar 13 attached to a ceiling 11, a window frame or a wall surface, and opposite to both ends of the support bar 13. A pair of support brackets 14 and 14 arranged, a winding roller 16 provided along the support bar 13 and having both ends pivotally supported by the pair of support brackets 14 and 14, and one end fixed to the support bar 13 and the screen fixing member 20. The other end of the screen 17 is wound around the take-up roller 16 so as to be fed out and folded back at the lower end, and the screen 17 is always positioned at the folded portion 17a of the screen 17. In the roll screen provided with the weight member 18 attached and applying tension to the screen 17, the screen fixing member 20 extends in the longitudinal direction of the support bar 13, and the upper end is the support bar. 3, a screen fixing main body 21 having a concave groove 21 c formed in the lower part, a screen mounting bar 22 to which one end of the screen 17 is attached and loosely inserted into the concave groove 21 c, and an end of the screen fixing main body 21. And a bar positioning member 23 for positioning the screen mounting bar 22 so that the bar positioning member 23 positions the screen mounting bar 22 in its longitudinal direction or positions the screen mounting bar in its longitudinal direction and width direction. It is characterized by being configured.

  The second aspect of the present invention is an invention based on the first aspect. As shown in FIGS. 1 to 3, the bar positioning member 23 is inserted into the concave groove 21 c of the screen fixing main body 21 to form a concave. The screen mounting bar 22 in the groove 21c is fixed to the screen fixing body 21 in a state where it is positioned in the longitudinal direction of the concave groove 21c.

  The third aspect of the present invention is an invention based on the second aspect, and as shown in FIGS. It is characterized by having been installed.

  A fourth aspect of the present invention is an invention based on the first aspect, and as shown in FIGS. 7 to 9 and 13, a bar positioning member 63 is attached to the end of the screen fixing body 21. A cylindrical inner cap 64 into which an end of the screen mounting bar 62 can be loosely inserted, and an end of the screen mounting bar 62 loosely inserted into the inner cap 64 to hold the screen mounting bar 62 in its longitudinal direction and width direction. And an outer cap 66 that is fitted to the inner cap 64 and closes the concave groove 21c of the screen fixing main body 21.

  A fifth aspect of the present invention is the invention based on the first aspect, and further, as shown in FIGS. 5 and 6, a light transmitting portion in which screens 17 are alternately and continuously formed in the winding direction. 17b and the opaque part 17c.

  In the roll screen according to the first aspect of the present invention, when the screen is displaced in the horizontal direction and the screen is distorted or wavy, the screen mounting bar is moved in the longitudinal direction to correct the horizontal displacement of the screen. When the screen is displaced obliquely and the screen is distorted or wavy, the screen mounting bar is moved in the longitudinal direction and the width direction to correct the oblique displacement of the screen. The screen mounting bar is positioned by the bar positioning member at a position where the flatness of the screen is within a desired range. As a result, it is possible to reduce or eliminate distortions and undulations generated on the screen.

  In the roll screen according to the second aspect of the present invention, when the screen is displaced in the left-right direction and the screen is distorted or wavy, the screen mounting bar in the groove of the screen fixing body is moved in the longitudinal direction, Correct the horizontal shift of the screen. Then, the screen mounting bar is positioned by a bar positioning member at a position where the flatness of the screen is within a desired range, and is fixed to the screen fixing body. In this way, it is possible to reduce or eliminate distortions and undulations generated on the screen by a relatively simple operation.

  In the roll screen according to the third aspect of the present invention, since the cap is attached to the end of the screen fixing body, the end surface of the concave groove of the screen fixing body is closed by this cap. As a result, the appearance of the end of the screen fixing body can be improved.

  In the roll screen according to the fourth aspect of the present invention, the screen mounting bar is loosely inserted into the recessed groove of the screen fixing main body, the inner cap is attached to the end of the screen fixing main body, and the end of the screen mounting bar is held by the outer cap. In this state, the outer cap is fixed in a state of being fitted into the inner cap. At this time, if the screen is displaced obliquely and the screen is distorted or wavy, the screen mounting bar is moved in the longitudinal direction and the width direction by loosening and shifting the outer cap with respect to the inner cap. Correct the misalignment. Then, at a position where the flatness of the screen is within a desired range, the screen mounting bar is positioned by the bar positioning member and fixed to the screen fixing body, that is, the screen mounting bar is positioned by the outer cap and fixed to the inner cap. . In this way, distortion and undulation generated on the screen can be reduced or eliminated by a relatively simple operation. In addition, since the outer cap closes the end surface of the recessed groove of the screen fixing body and the end surface of the cylindrical inner cap, the appearance of the end portion of the screen fixing body can be improved.

  In the roll screen according to the fifth aspect of the present invention, the screen has light-transmitting portions and non-light-transmitting portions formed alternately and continuously in the winding direction, so that one end of the screen is wound around a winding roller or From the state where the translucent parts before and after the double screen are overlapped and the non-translucent parts are overlapped by feeding from the winding roller, the translucent part and the non-translucent part before and after the double screen are It can be changed steplessly until it overlaps. As a result, the amount of light passing through the light transmitting portion of the screen can be freely adjusted to a desired amount.

It is A arrow line view of FIG. 5 which shows the roll screen of 1st Embodiment of this invention. It is the BB sectional view taken on the line of FIG. It is CC sectional view taken on the line of FIG. It is the DD sectional view taken on the line of FIG. It is the EE sectional view taken on the line of FIG. It is an illumination figure of the roll screen which shows the state which fractured | ruptured a part of winding roller and weight member. It is an arrow line view corresponding to FIG. 1 which shows the roll screen of 2nd Embodiment of this invention. It is the GG sectional view taken on the line of FIG. It is the HH sectional view taken on the line of FIG. It is the II sectional view taken on the line of FIG. It is sectional drawing corresponding to FIG. 10 which shows the state which shifted the screen attachment bar and the outer cap in the diagonal upper right direction with respect to the inner cap. It is sectional drawing corresponding to FIG. 10 which shows the state which shifted the screen attachment bar and the outer cap in the diagonally lower left direction with respect to the inner cap. It is a principal part disassembled perspective view which shows the state just before assembling an inner cap and an outer cap by inserting a screen attachment bar into a screen fixing body.

  Next, an embodiment for carrying out the present invention will be described with reference to the drawings.

<First Embodiment>
As shown in FIGS. 1 and 5, the roll screen 10 includes a support bar 13 that is attached to the ceiling 11 via a mounting bracket 12, and a pair of support brackets 14 that are disposed to face both ends of the support bar 13. 14, a take-up roller 16 provided along the support bar 13 and having both ends pivotally supported by a pair of support brackets 14 and 14, and one end fixed to the support bar 13 and the other end being extendable to the take-up roller 16. A screen 17 that is wound and folded at the lower end to be doubled, and a weight member 18 that is attached to the screen 17 so as to be always positioned at the folded portion 17a of the screen 17 and applies tension to the screen 17 are provided. The pair of support brackets 14 and 14 are respectively fitted to both ends of the support bar 13 in the longitudinal direction. The winding roller 16 is formed in a cylindrical shape with a circular cross section (FIG. 5). One end of the take-up roller 16 is rotatably supported on one support plate 11 via a support shaft (not shown), and the other end of the take-up roller 16 is connected to the other via a resistance applying device and a rotary shaft (not shown). The support plate 12 is rotatably held in a state where a certain rotational resistance is applied (FIG. 6). Further, a pulley (not shown) is fitted on the rotating shaft, and an endless ring-shaped operation chain 19 is wound around the pulley (FIGS. 5 and 6). The mounting bracket 12 is attached to the ceiling 11 (FIG. 5) with screws (not shown).

  The screen 17 is formed with light-transmitting portions 17b and light-impermeable portions 17c alternately and continuously in the winding direction of the screen 17 (FIGS. 5 and 6). In this embodiment, the translucent portion 17b and the non-translucent portion 17c are formed to extend in the horizontal direction. The translucent portion 17b means that light can be transmitted, and includes both transparent and semi-transparent, and ventilation is also possible by roughening the woven structure of the fabric. The translucent part 17b is formed of a mesh-like cloth having a light transmittance of 40 to 95%, preferably 60 to 95%. Here, the light transmittance of the translucent portion 17b is limited to the range of 40 to 95% because the desired light intensity cannot be obtained if it is less than 40%, and the strength of the screen 17 is lowered if it exceeds 95%. Because it will end up. The non-light-transmitting portion 17c means that light cannot be transmitted, and is made by sticking a metal foil made of aluminum or the like to the fabric or increasing the density of the fibers.

  On the other hand, one end of the screen 17 is fixed to the support bar 13 via the screen fixing member 20 (FIGS. 1, 2 and 5). The screen fixing member 20 is inserted into the screen fixing main body 21 extending in the longitudinal direction of the support bar 13, the screen mounting bar 22 to which one end of the screen 17 is attached, and the end of the screen fixing main body 21. Bar positioning member 23. The front surface of the support bar 13, that is, the indoor side surface of the support bar 13 attached to the ceiling 5 via the mounting bracket 12 extends in the longitudinal direction of the support bar 13 and has a substantially semicircular cross section. 13a is formed at the upper end of the screen fixing main body 21. The engaging convex part 21a extends in the longitudinal direction of the screen fixing main body 21 and can be loosely inserted into the engaging concave part 13a of the support bar 13. Is provided through the thin-walled portion 21b (FIGS. 2 and 5). The upper end of the screen fixing main body 21 is attached to the support bar 13 by loosely inserting the engaging convex portion 21a of the screen fixing main body 21 into the engaging concave portion 13a of the support bar 13. In this state, the screen fixing main body 21 is engaged. It is comprised so that it can rotate only a predetermined angle within the surface orthogonal to the longitudinal direction with respect to the support bar 13 centering on the joint convex part 21a.

  A concave groove extending in the longitudinal direction of the lower surface of the screen fixing body 21, that is, in a state where the engaging convex portion 21 a of the screen fixing body 21 is loosely inserted into the engaging recess 13 a of the support bar 13. 21c is formed, and the screen mounting bar 22 is loosely inserted into the concave groove 21c (FIGS. 1, 2, and 4). The inner surface of the peripheral wall forming the concave groove 21 c is formed in a substantially C-shaped cross section, and the screen mounting bar 22 is formed in a flat bar shape extending in the longitudinal direction of the screen fixing body 21. The bar positioning member 23 is slidably inserted into the concave groove 21c of the screen fixing main body 21, and is fixed in the concave groove 21c by a fixing screw 24 and a fixing nut 26 (FIGS. 1 to 4). In this embodiment, the fixing screw 24 is a cross-recessed pan head screw, and the fixing nut 26 is a hexagonal nut that can be screwed onto the fixing screw 24. Further, the positioning member 23 has a through hole 23a into which the screw portion 24a of the fixing screw 24 can be loosely inserted, a circular recess 23b for receiving the head 24b of the fixing screw 24, and a hexagonal recess for receiving the fixing nut 26 in a non-rotatable manner. 23c is formed.

  The bar positioning member 23 accommodates the fixing nut 26 in the hexagonal recess 23c, the threaded portion 24a of the fixing screw 24 is inserted into the through hole 23a, and is screwed into the fixing nut 26. The top surface is inserted into the concave groove 21 c so as to face the outside of the concave groove 21 c of the screen fixing main body 21. The bar positioning member 23 has a screen fixing bar 22 in the concave groove 21c of the screen fixing main body 21 positioned in the longitudinal direction thereof, and the front end surface of the screw portion 24a of the fixing screw 24 protrudes from the fixing nut 26 so that the screen fixing main body 21 is positioned. 21 is fixed to the screen fixing body 21 by being pressed against the flange wall of the concave groove 21c. Further, a pair of caps 27, 27 for closing both ends of the concave groove 21c are attached to both ends of the screen fixing body 21 (FIGS. 1 and 3). The caps 27 and 27 are attached to both ends of the screen fixing body 21 by screwing mounting screws 28 and 28 into screwing recesses 21 d formed in the screen fixing body 21. A recess 16a extending over the entire length of the take-up roller 16 in the longitudinal direction is formed on the outer peripheral surface of the take-up roller 16. The other end of the screen 14 is attached to the recess 16a via a screen attachment bar 29. Worn (FIG. 5). The inner surface of the peripheral wall forming the recess 16a is formed in a substantially C-shaped cross section, and the screen mounting bar 29 is formed in a flat bar shape extending in the longitudinal direction of the winding roller 16.

  On the other hand, a torsion coil spring 31 is provided in the winding roller 16 adjacent to one of the support brackets 14 and 14 (FIG. 6). One end of the torsion coil spring 31 is fixed to one support bracket 14, and the other end of the torsion coil spring 31 is fixed to the inner peripheral surface of the winding roller 16. The twisting direction of the torsion coil spring 31 is such that when the winding roller 16 rotates in the direction of feeding out the screen 17 and the screen 17 descends, elastic energy is accumulated in the torsion coil spring 31 and the winding roller 16 is moved to the screen. The elastic energy accumulated in the torsion coil spring 31 is released when the screen 17 rises by rotating in the winding direction. Specifically, the rotation of the winding roller 16 resists the elastic force (torque) of the torsion coil spring 31 when the screen 17 is extended, but is supported by the weight of the weight member 18 and the screen 17, and when the screen 17 is wound. The rotation of the winding roller 16 is configured to be supported by an elastic force (torque) generated by the release of elastic energy. Accordingly, the operation force of the operation chain 19 in the feeding direction of the screen 17 and the operation force of the operation chain 19 in the winding direction of the screen 17 are reduced.

  However, when the operation of the operation chain 19 is stopped by raising or lowering the screen 17 to a desired height, the screen 17 is moved by the constant rotation resistance applied to the winding roller 16 by the resistance applying device. Holds the position when the operation is stopped. For this reason, when the indoor portion of the operation chain 19 is pulled down, the winding roller 16 resists the rotational resistance of the resistance applying device and the elastic force (torque) of the torsion coil spring 31, and the weight member 18 and the screen 17 The screen 17 is configured to be wound around the winding roller 16 and to be lifted by rotating while being supported by its own weight. When the window side portion of the operation chain 19 is pulled down, the winding roller 16 resists the rotational resistance of the resistance applying device and is supported by the elastic force (torque) generated by the release of the elastic energy of the torsion coil spring 31. The screen 17 is configured to be drawn out from the take-up roller 16 and lowered.

  On the other hand, the weight member 18 is provided at the folded portion 17a at the lower end of the screen 17 in order to apply tension to the screen 17 (FIGS. 5 and 6). The weight member 18 is formed in a cylindrical shape that is slightly longer than the width of the screen 17, contacts the inner surface of the folded portion 17 a of the screen 17, and rolls on the inner surface of the weight cylinder 18 a and the weight cylinder 18 a. A relatively large mass main body 18a accommodated, a pair of bearings 18d that are press-fitted into both ends of the cylinder 18a for weights and formed with an insertion hole 18c at the center, and an insertion hole that is rotatable relative to the bearing 18d. And a weight lid 18e that is inserted into the bearing 18c and closes the end surface of the bearing 18d. The bearing 18d is configured to be non-rotatable with respect to the weight cylinder 18a by being press-fitted into the weight cylinder 18a. A pair of elastically deformable latching claws (not shown) project from the tip of the weight lid 18e, and these masses are engaged with the end face of the bearing 18d so as to be relatively rotatable. The cylinder 18b is configured so as not to come off. Reference numeral 18f in FIG. 6 is a rotation preventing portion protruding from the lower portion of the weight lid 18e so as to cover the lower surface of the folded portion 17a of the screen 17 with a gap. The rotation preventing portion 18f is provided to prevent the weight lid 18e from rotating together with the bearing 18d and the weight cylinder 18a. Reference numerals 32 and 32 in FIGS. 5 and 6 denote cover bodies that are respectively attached to the outer surfaces of the pair of support brackets 14 and 14 and cover the outer surfaces of the support brackets 14 and 14.

  The assembly procedure in the factory of the roll screen 10 comprised in this way is demonstrated. First, a torsion coil spring 31 and a resistance applying device are assembled in the winding roller 16, the operation chain 19 is wound around a pulley (not shown), and the engaging convex portion 21 a of the screen fixing body 21 is engaged with the engaging concave portion 13 a of the support bar 13. In the state where both ends of the take-up roller 16 are sandwiched between a pair of support brackets 14, 14, and these brackets 14, 14 are respectively fitted to both ends of the support bar 13 and screws (not shown). Secure with. Next, one end of the screen 17 is attached to the support bar 13, and the other end of the screen 17 is attached to the winding roller 16. Specifically, the screen mounting bar 22 is attached to one end of the screen 17 with a double-sided adhesive tape (not shown), and the screen 17 is wound around the screen mounting bar 22 once or twice. One end of the screen 17 is attached to the support bar 13 by loosely inserting the attachment bar 22 into the concave groove 21 c of the screen fixing body 21. In addition, the screen attachment bar 29 is attached to the other end of the screen 17 with a double-sided adhesive tape (not shown), and the other end of the screen 17 is wound around the screen attachment bar 29 once or twice. The other end of the screen 17 is attached to the winding roller 16 by loosely inserting the attachment bar 29 into the recess 16 a of the winding roller 16. Next, a pair of bar positioning members 23, 23 are inserted from both ends of the recessed groove 21 c of the screen fixing body 21, and these bar positioning members 23, 23 are in contact with both ends of the screen mounting bar 22, respectively. These bar positioning members 23, 23 are temporarily fixed to the screen fixing main body 21 with fixing screws 24 and fixing nuts 26, and a pair of caps 27, 27 are attached to both end faces of the screen fixing main body 21. Further, a support bar 13 to which the winding roller 16 and the like are assembled is attached to a pair of mounting brackets 12 and 12 (FIGS. 5 and 6) provided in the assembly line of the factory, and a weight is attached to the folded portion 17a at the lower end of the screen 17. After the member 18 is attached, the operation chain 19 is operated to wind the screen 17 around the winding roller 16. Thereby, the assembly of the roll screen 10 is completed.

  Next, the adjustment procedure of the roll screen 10 in the factory inspection line will be described. First, in a state where the support bar 13 of the roll screen 10 is attached to a pair of mounting brackets 12, 12 provided on the inspection line of the factory, the operation chain 19 is operated and the screen 17 is all fed out from the take-up roller 16. At this time, it is inspected whether the screen 17 is distorted or wavy, and if the screen 17 is shifted to the left and right and the screen 17 is distorted or wavy, the bar positioning member 23 is attached to the screen fixing body 21. The fixing screw 24 temporarily fixed to the screw is loosened, and the screen mounting bar 22 in the concave groove 21c of the screen fixing main body 21 is moved in the longitudinal direction together with the bar positioning member 23 to correct the horizontal displacement of the screen 17. . Then, the screen mounting bar 22 is positioned at a position where the flatness of the screen 17 is within a desired range. Next, the bar positioning members 23 and 23 are fixed to the screen fixing body 21 by tightening the fixing screws 24 of the pair of bar positioning members 23 and 23 that are in contact with both ends of the screen mounting bar 22. In this way, the distortion and undulation generated on the screen 17 can be reduced or eliminated by a relatively simple operation. Further, the operation chain 19 is operated to wind the screen 17 around the winding roller 16. Thereby, the adjustment of the roll screen 10 is completed. When the adjusted roll screen 10 is attached to the ceiling 11 above the window on the site via a pair of mounting brackets 12 and 12, the operation chain 19 is operated and the screen 17 is fed out from the winding roller 16. When the screen 17 is displaced in the left-right direction due to vibration or the like during the conveyance of the roll screen 10 and the screen 17 is distorted or wavy, the adjustment is performed in the same procedure as the above adjustment procedure. In addition, a pair of caps 27 and 27 are attached to both ends of the screen fixing main body 21, and both end surfaces of the concave grooves 21 c of the screen fixing main body 21 are closed by these caps 27 and 27, respectively. The appearance of both end portions of 21 can be improved.

<Second Embodiment>
7 to 13 show a second embodiment of the present invention. 7-9, the same code | symbol as FIGS. 1-3 shows the same component. In this embodiment, the bar positioning member 63 of the screen fixing member 60 is configured to position the screen mounting bar 62 in the longitudinal direction and the width direction (FIGS. 7 and 9). Specifically, the bar positioning member 63 includes a pair of cylindrical inner caps 64 and 64 attached to both ends of the screen fixing main body 21 and a pair of outer caps fitted to the inner caps 64 and 64, respectively. And caps 66, 66. The inner cap 64 abuts the end surface of the screen fixing main body 21 and communicates with the concave groove 21 c of the screen fixing main body 21. The inner cap 64 is formed in a cylindrical shape, and protrudes from the inner main body 64 a and protrudes from the screen fixing main body 21. A fitting portion 64b that is fitted into the concave groove 21c and is positioned with respect to the concave groove 21c, and a through-hole 64c that projects from the inner main body 64a in a direction covering the screwing concave portion 21d of the screen fixing main body 21 and communicates with the screwing concave portion 21d. The formed mounting portion 64d, the opening 64e formed in the inner main body 64a so as to face the surface opposite to the surface facing the screen fixing main body 21 of both surfaces of the mounting portion 64d, and the inner main body 64a Three that protrude from the outer surface of the upper wall and extend in the longitudinal direction of the screen mounting bar 62 at a predetermined interval in the width direction of the screen mounting bar 62 Consisting of an inner engagement rib 64f (FIGS. 9 13). An end portion of the screen mounting bar 62 is configured to be freely inserted into the cylindrical inner body 64a, and a countersunk screw 67 screwed into the threaded recess 21d is inserted into the through hole 64c.

  On the other hand, a pair of mounting recesses are respectively formed at both ends of the screen mounting bar 62 (FIGS. 7, 9, and 13). The outer cap 66 projects from the box-shaped outer body 66 a that can be fitted into the inner cap 64 and the inner surface of the upper wall of the outer body 66 a, and has a predetermined interval in the width direction of the screen mounting bar 62. The four outer engaging ribs 66b extending in the longitudinal direction of the outer main body 66a, a rectangular convex portion 66c projecting from the outer surface of the lower wall of the outer body 66a, and the threaded portion 68a of the fixing screw 68 are inserted into the center of the rectangular convex portion 66c. An insertion hole 66d that can be formed, a rectangular recess 66e that is formed on the inner surface of the lower wall of the outer main body 66a by the formation of the square convex portion 66c and in which a fixing nut 69 made of a square nut is non-rotatably accommodated, and the outer main body 66a An attachment projection 66f that protrudes from the flange surface and can be inserted into the attachment recess 62a of the screen attachment bar 62, and an attachment projection 66g is sandwiched between the flange surface of the outer body 66a. Consisting projecting from a pair of mounting clamping pieces 66g, and 66g (FIG. 7 to FIG. 10 and FIG. 13). The four outer engagement ribs 66b are configured to be selectively engageable with the three inner engagement ribs 64f as shown in FIGS. That is, the four outer engaging ribs 66b can be shifted steplessly in the longitudinal direction of the screen mounting bar 62 while being selectively engaged with the three inner engaging ribs 64b. It is configured to be able to selectively engage with the three inner engaging ribs 64f by shifting stepwise (three steps) in the width direction of 62.

  The outer cap 66 is inserted into the insertion hole 66d of the rectangular convex portion 66c through the threaded portion 68a of the fixing screw 68 and screwed into the fixing nut 69 in the rectangular concave portion 66e. The inner cap 64 is fitted so that the surface faces downward. The outer cap 66 is attached to the screen by steplessly shifting in the longitudinal direction of the screen mounting bar 62 in a state where the four outer engaging ribs 66b are selectively engaged with the three inner engaging ribs 64f. The bar 62 is positioned in the longitudinal direction, and the four outer engaging ribs 66b are shifted stepwise (three steps) in the width direction of the screen mounting bar 62 and selectively engaged with the three inner engaging ribs 64f. By combining, the screen mounting bar 62 is configured to be positioned in the width direction. In this state, the front end surface of the screw portion 68a of the fixing screw 68 protrudes from the fixing nut 69 and is pressed against the outer surface of the lower wall of the inner main body 64a, whereby the outer cap 66 is fixed to the inner cap 64. Further, the outer cap 66 is configured to close the end surface of the recessed groove 21 c of the screen fixing main body 21 and the end surface of the cylindrical inner cap 64 while being fixed to the inner cap 64. The inner main body is provided with four or more inner engaging ribs, the outer main body is provided with five or more outer engaging ribs, and the five or more outer engaging ribs are stepped in the width direction of the screen mounting bar ( It may be configured to be selectively engageable with four or more inner engagement ribs by shifting to four or more stages. The configuration other than the above is the same as that of the first embodiment.

  An assembly procedure in the factory for the roll screen 50 configured as described above will be described. First, as in the first embodiment, a torsion coil spring, a resistance applying device, etc. are assembled in the take-up roller, an operation chain is wound around a pulley (not shown), and the screen fixing main body is engaged with the engagement recess 13a of the support bar 13. In the state in which the engagement protrusions 21a of 21 are inserted and both ends of the take-up roller are sandwiched between a pair of support brackets, these brackets are respectively fitted to both ends of the support bar 13 with screws (not shown). Fix it. Next, one end of the screen 17 is attached to the support bar 13. Specifically, the screen mounting bar 62 is attached to one end of the screen 17 with a double-sided adhesive tape (not shown), and the screen 17 is wound around the screen mounting bar 62 once or twice. After attaching one end of the screen 17 to the support bar 13 by loosely inserting the mounting bar 62 into the concave groove 21c of the screen fixing main body 21, a pair of inner caps 64, 64 are countersunk into the opposite ends of the screen fixing main body 21. Attach with 67 and 67, respectively. Then, the pair of outer caps 66 and 66 are fitted into the pair of inner caps 64 and 64, respectively, and both ends of the screen mounting bar 62 are held by the pair of outer caps 66 and 66, respectively. At this time, the mounting projections 66f and 66f of the pair of outer caps 66 and 66 are inserted into the pair of mounting recesses 62a and 62a at both ends of the screen mounting bar 62 (FIG. 9), and the both ends of the screen mounting bar 62 are sandwiched between the pair of mountings. It sandwiches between the pieces 66g, 66g (FIGS. 10 to 12). In this state, the fixing screw 68 is tightened, and the outer end surface of the threaded portion 68a of the fixing screw 68 is protruded from the fixing nut 69 and pressed against the outer surface of the lower wall of the inner body 64a, thereby temporarily fixing the outer cap 66 to the inner cap 64. . Thereby, the bar positioning member 63 is temporarily fixed to the screen fixing main body 21. Next, as in the first embodiment, the other end of the screen 17 is attached to the winding roller. Further, as in the first embodiment, the support bar 13 having the above-described take-up roller and the like is attached to a pair of mounting brackets provided in the assembly line of the factory, and a weight member is attached to the folded portion at the lower end of the screen 17. After the mounting, the operation chain is operated to wind the screen 17 around the winding roller. Thereby, the assembly of the roll screen 50 is completed.

  Next, the adjustment procedure of the roll screen 50 in the factory inspection line will be described. First, in a state where the support bar 13 of the roll screen 50 is attached to a pair of attachment brackets provided on a factory inspection line, the operation chain is operated and the screen 17 is all fed out from the take-up roller. At this time, it is inspected whether the screen 17 is distorted or wavy. If the screen 17 is displaced in an oblique direction and the screen 17 is distorted or wavy, a pair of outer members of the bar positioning member 63 is used. The fixing screws 68, 68 that temporarily fix the caps 66, 66 to the pair of inner caps 64, 64 are loosened, and the outer caps 66, 66 are displaced with respect to the inner caps 64, 64, thereby the screen mounting bar 62 is The screen 17 is moved in the longitudinal direction and the width direction to correct the oblique displacement of the screen 17. Specifically, in order to move the screen mounting bar 62 in the longitudinal direction, the pair of outer caps 66, 66 is paired with the pair of inner caps 64 while the screen mounting bar 62 is held between the pair of outer caps 66, 66. , 64 by moving the screen mounting bar 62 in the longitudinal direction. Further, in order to move the screen mounting bar 62 in the width direction, the four outer engagement ribs 66b of the outer cap 66 are shifted stepwise (three steps) in the width direction of the screen mounting bar 62, and the inner cap 64 3 This is done by selectively engaging the inner engaging rib 64f of the book. The screen mounting bar 62 is positioned by the bar positioning member 63 and fixed to the screen fixing body 21 at a position where the flatness of the screen 17 is within a desired range, that is, the fixing screw 68 is tightened, and the screw of the fixing screw 68 is tightened. The outer cap 66 is fixed to the inner cap 64 by projecting the front end surface of the portion 68a from the fixing nut 69 and press-contacting it to the outer surface of the lower wall of the inner main body 64a. In this way, the distortion and undulation generated on the screen 17 can be reduced or eliminated by a relatively simple operation. Further, the operation chain is operated to wind the screen 17 around the winding roller. Thereby, the adjustment of the roll screen 50 is completed. When the adjusted roll screen 50 is attached to the ceiling above the window on the site via a pair of mounting brackets and the screen 17 is fed out of the take-up roller by operating the operation chain, the screen 17 is moved to the roll screen. When the screen 17 is distorted or undulated due to vibration during conveyance or the like, adjustment is performed in the same procedure as the above adjustment procedure. In addition, since both the end faces of the concave groove 21c of the screen fixing body 21 and the end faces of the pair of inner caps 64, 64 are closed by the pair of outer caps 66, 66, the appearance of both ends of the screen fixing body 21 can be improved.

  In the first and second embodiments, the support bar is attached to the ceiling via the mounting bracket. However, the support bar may be attached to the window frame or the wall surface via the mounting bracket. In the first and second embodiments, the screen in which the opaque portions and the transparent portions are alternately and continuously formed in the winding direction of the screen is described. It may be a screen made of a design or a pattern, or a screen made of a normal non-patterned fabric or a patterned fabric. Furthermore, in the first and second embodiments, the translucent part and the non-translucent part of the screen are formed extending in the horizontal direction, but the translucent part and the non-translucent part are arranged in the winding direction of the screen. If the light-transmitting portions and the light-impermeable portions are formed alternately and continuously in the vertical direction of the screen, the light-transmitting portions and the light-impermeable portions are inclined. They may be formed so as to extend in parallel with each other in the direction, or the light-transmitting portions and the light-impermeable portions may be arranged in a checkered pattern or a staggered pattern, respectively.

DESCRIPTION OF SYMBOLS 10,50 Roll screen 11 Ceiling 13 Support bar 14 Support bracket 16 Winding roller 17 Screen 17a Folding part 17b Translucent part 17c Translucent part 18 Weight member 20, 60 Screen fixing member 21 Screen fixing main body 21c Concave groove 22, 62 Screen mounting bar 23, 63 Bar positioning member 27 Cap 64 Inner cap 66 Outer cap

Claims (5)

A support bar attached to the ceiling, window frame or wall surface, a pair of support brackets arranged opposite to both ends of the support bar, and both ends provided along the support bar are pivotally supported by the pair of support brackets A take-up roller, a screen having one end fixed to the support bar via a screen fixing member and the other end being rewindable to the take-up roller and folded back at the lower end, and the screen In a roll screen provided with a weight member attached to the screen so as to be always positioned at the folded portion of the screen and applying tension to the screen,
The screen fixing member is provided so as to extend in the longitudinal direction of the support bar, the upper end is attached to the support bar, and a concave groove is formed in the lower part, and one end of the screen is attached and the concave groove A screen mounting bar that is loosely inserted, and a bar positioning member that is inserted into an end portion of the screen fixing body and positions the screen mounting bar.
The roll screen, wherein the bar positioning member is configured to position the screen mounting bar in the longitudinal direction or to position the screen mounting bar in the longitudinal direction and the width direction.   The bar positioning member is fixed to the screen fixing body in a state where the bar positioning member is inserted into a concave groove of the screen fixing main body and the screen mounting bar in the concave groove is positioned in the longitudinal direction of the concave groove. Roll screen.   The roll screen according to claim 2, wherein a cap for closing an end surface of the groove is attached to an end of the screen fixing body.   The bar positioning member is attached to an end of the screen fixing main body, and a cylindrical inner cap that can be loosely inserted into the end of the screen mounting bar; and an end of the screen mounting bar that is loosely inserted into the inner cap The roll screen according to claim 1, further comprising an outer cap that is fitted to the inner cap and closes a concave groove of the screen fixing body in a state where the screen mounting bar is positioned in the longitudinal direction and the width direction while holding the screen. .   The roll screen according to claim 1, wherein the screen has a translucent portion and a non-translucent portion that are alternately and continuously formed in the winding direction.

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