JP2017044046A - Roll screen - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a roll screen, easily adjustable so as not to cause winding dislocation in a screen.SOLUTION: A roll screen 1 of a first mode by the present invention is provided with a winding dislocation adjusting device 30 having a pressing part for partially pressing from the outside to a winding part 3 for winding or rewinding a screen 4, and can displace this pressing part along the longitudinal direction of the winding part 3. A roll screen 1 of a second mode by the present invention can move a part for generating its maximum pressing force along the longitudinal direction of the winding part 3 by constituting the pressing part so that the pressing force becomes different along the longitudinal direction of the winding part 3. A roll screen 1 of a third mode by the present invention is constituted of a part for pressing the pressing part to the winding part 3 so that a pressing distance or the area per unit in its longitudinal direction becomes different in the longitudinal direction, and the part being its maximum pressing distance or the area can be adjusted along the longitudinal direction of the winding part 3.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a roll screen that can be adjusted so as not to cause a winding slip in the screen.

  In the roll screen, the screen is suspended from a winding unit supported rotatably on the mounting surface, and the screen is wound around the winding unit and is raised by rotating the winding unit in the screen winding direction. Further, by rotating the winding unit in the screen unwinding direction, the screen is unwound from the winding unit and descends.

  In such a roll screen, when the screen is wound around the winding portion, a so-called winding shift may occur in which the screen is wound while being shifted in the longitudinal direction of the winding portion.

  For this reason, during the assembly process of the roll screen or at the installation site of the roll screen, a winding slip does not occur by attaching an adjustment seal to the outer peripheral surface of the winding unit and finely adjusting the winding diameter of the winding unit. Measures are taken to make adjustments.

  In addition, regarding the adjustment of the winding deviation, a technique is disclosed in which an adjustment member is provided so as to be movable in the axial direction with respect to the winding portion of the roll screen, so that the adjustment can be performed so that the winding deviation of the screen does not occur ( For example, see Patent Document 1).

JP 2012-246635 A

  The technique disclosed in Patent Document 1 described above is effective because the adjustment member is configured to be provided so as to be movable in the axial direction with respect to the winding unit, and therefore, the screen winding deviation can be effectively adjusted. .

  However, in such a structure, every time the adjustment is performed so that the screen is not displaced, the adjustment member has to lower the screen to the exposure, and there is a problem that the adjustment takes time.

  In view of the above-described problems, an object of the present invention is to provide a roll screen that can be easily adjusted so that the screen does not slip.

  The roll screen of the first aspect according to the present invention is a roll screen that winds or rewinds the screen by a winding unit, and is provided with a pressing unit that partially presses the winding unit from the outside. The pressing portion can be shifted along the longitudinal direction of the winding portion.

  Furthermore, the roll screen according to the second aspect of the present invention is a roll screen that winds or unwinds the screen by a winding unit, and is provided with a pressing unit that presses the winding unit from the outside. The pressing portion is configured so that the pressing force varies along the longitudinal direction of the winding portion, and a portion that generates the maximum pressing force is configured to be movable along the longitudinal direction of the winding portion. And

  Furthermore, the roll screen of the third aspect according to the present invention is a roll screen that winds or rewinds the screen by a winding unit, and is provided with a pressing unit that presses the winding unit from the outside. The pressing portion is configured by a portion that presses the winding portion so that the pressing distance or area per unit in the longitudinal direction differs in the longitudinal direction, and the portion having the maximum pressing distance or area is the winding portion. It is characterized in that it can be adjusted along the longitudinal direction.

  Moreover, the roll screen of the 1st or 2nd aspect by this invention WHEREIN: The said press part is comprised so that the said screen can be pressed directly or indirectly by the weight part which can slide to the axial direction of the said winding part. It is characterized by.

  Further, in the roll screen according to the third aspect of the present invention, the pressing portion is selected and set by a plurality of pressing position adjusting portions that can adjust the state of pressing and non-pressing from the outside in the axial direction of the winding portion. It is characterized by being configured.

  In the roll screen according to any one of the first to third aspects of the present invention, the pressing portion is formed on a light-shielding fin that can block light leakage from a gap above the winding portion.

  The roll screen according to any one of the first to third aspects of the present invention is characterized in that the light shielding fin is configured to be rotatable according to a winding diameter of the screen.

  Moreover, the roll screen of the 1st thru | or 3rd aspect by this invention WHEREIN: The said press part has a 1 or more roller rotatable in the winding direction of the said screen, It is characterized by the above-mentioned.

  In the roll screen according to the first to third aspects of the present invention, the pressing portion is urged by a predetermined urging means.

  ADVANTAGE OF THE INVENTION According to this invention, it can adjust easily so that the winding shift | offset | difference of the screen which can be wound up does not arise.

It is a partial exploded perspective view showing a schematic structure of a roll screen of a 1st embodiment by the present invention. It is a front view which shows schematic structure of the roll screen of 1st Embodiment by this invention. (A), (b) is a front view which shows the modification 1, 2 of the winding deviation adjustment apparatus in the roll screen of 1st Embodiment by this invention, respectively. (A), (b) is side surface sectional drawing which shows the modification 3 of the winding deviation adjustment apparatus in the roll screen of 1st Embodiment by this invention. (A), (b) is side surface sectional drawing which shows the modification 4 of the winding deviation adjustment apparatus in the roll screen of 1st Embodiment by this invention. (A), (b) is side surface sectional drawing which shows the modification 5 of the winding deviation adjustment apparatus in the roll screen of 1st Embodiment by this invention. It is a partial exploded perspective view which shows schematic structure which concerns on the winding deviation adjustment apparatus of one Example in the roll screen of 2nd Embodiment by this invention. (A), (b) is side sectional drawing which shows operation | movement of the winding deviation adjustment apparatus of one Example in the roll screen of 2nd Embodiment by this invention. It is a partial exploded perspective view which shows the schematic structure which concerns on the winding deviation adjustment apparatus of the modification 1 in the roll screen of 2nd Embodiment by this invention. (A) is a partial side sectional view showing a schematic configuration of a roll screen according to a second embodiment of the present invention that includes the winding deviation adjusting device 30 of the second modification, and (b) is a modification of the second modification. It is a rear view which illustrates the press distribution of the axial direction of a winding deviation adjusting device. It is a partial exploded perspective view which shows schematic structure of the roll screen of 3rd Embodiment by this invention from the back side. (A), (b) is the perspective view and side view which respectively show roughly the winding deviation adjusting device of one Example in the roll screen of 3rd Embodiment by this invention. (A), (b) is the perspective view and side view which respectively show schematically the winding misalignment adjusting apparatus of the modification in the roll screen of 3rd Embodiment by this invention.

  Hereinafter, roll screens according to embodiments of the present invention will be described with reference to the drawings. In the present specification, with respect to the perspective view of the roll screen 1 shown in FIG. 1, the upper direction and lower direction in the drawing are respectively upward (or upper) and downward (or lower) according to the hanging direction of the screen 4. The left direction in the figure is defined as the left side of the roll screen 1, and the right direction in the figure is defined as the right side of the roll screen 1. Further, in the example described below, with respect to the perspective view of the roll screen 1 shown in FIG. 1, the viewing side is the front side (or the indoor side), and the opposite side is the rear side (or the outdoor side). Is a direction perpendicular to the illustrated surface in the perspective view of FIG.

  Hereinafter, the roll screen 1 of each embodiment is demonstrated in order. In addition, the same reference number is attached | subjected to the same component in each embodiment.

[First Embodiment]
(overall structure)
The roll screen 1 of the first embodiment shown in FIGS. 1 to 6 is provided with a pressing portion that partially presses the winding portion 3 from the outside, and this pressing portion is arranged along the longitudinal direction of the winding portion 3. The winding deviation adjusting device 30 of the embodiment or the modified example configured to have the pressing portion according to the first embodiment is slidable in the axial direction of the winding portion 3. Thus, by partially pressing the screen 4 taken up by the take-up unit 3 from the outside, the screen 4 can be adjusted so as not to be unwound.

  First, with reference to FIG.1 and FIG.2, the structure of the roll screen 1 of 1st Embodiment provided with the winding deviation adjustment apparatus 30 of one Example by this invention is demonstrated. FIG. 1 is a partially exploded perspective view showing a schematic configuration of a roll screen 1 according to a first embodiment of the present invention. FIG. 2 is a front view showing a schematic configuration of the roll screen 1 according to the first embodiment of the present invention.

  The roll screen 1 shown in FIGS. 1 and 2 has support members 2a and 2b fixed to the left and right ends of the mounting frame 2, and a cylindrical shape between the support members 2a and 2b by a fixed shaft extending from the support members 2a and 2b. The winding unit 3 is rotatably supported. The mounting frame 2 is fixed to the attachment surface by a bracket 6 (see FIG. 2).

  An operation pulley 8 (see FIG. 2) is provided at the right end of the winding unit 3, and an endless operation cord 7 hung on the operation pulley 8 is suspended. And it is comprised so that rotation of the winding part 3 can be performed by operation of the operation cord 7. FIG. In the example shown in the figure, the operation cord 7 is constituted by a ball chain, and the surface of the operation pulley 8 around which the ball chain is hung is configured so as to have irregularities having a shape adapted to the ball portion of the ball chain. Is shown. However, the operation cord 7 may be configured by a cord-like cord, and the surface of the operation pulley 8 around which the operation cord 7 is wound may be configured to have a highly frictional surface shape. Alternatively, instead of the operation by the operation code 7, an operation grip for directly operating the screen 4 itself can be provided on the lower end side of the screen 4, or an electric operation can be performed.

  The winding unit 3 attaches the upper end of the screen 4 and supports the screen 4 so that it can be wound. The lower end of the screen 4 is attached to a weight bar 5 (see FIG. 2) that functions as a weight member. Accordingly, the screen 4 is stretched based on the weight of the weight bar 5.

  When the operation cord 7 is operated to rotate the winding unit 3 in the screen winding direction, the weight bar 5 is raised, and when the winding unit 3 is rotated in the screen unwinding direction, the weight bar 5 is lowered.

  Further, in the winding unit 3, a spring motor that reduces the operating force when the screen 4 is wound is housed on the left end side, and a stopper device that prevents the weight of the screen 4 from falling down is housed on the right end side ( Not shown).

  As shown in FIG. 1 and FIG. 2, the roll screen 1 of the first embodiment is provided with a winding deviation adjusting device 30 of one example, and the winding deviation adjusting device 30 forms a screen 4 to be wound by the winding unit 3. On the other hand, the screen 4 can be adjusted so as not to be unwound by being partially pressed from the outside. Hereinafter, with reference to FIG.1 and FIG.2, the winding deviation adjustment apparatus 30 of one Example is demonstrated in detail in detail.

(Winding deviation adjusting device of one embodiment)
As shown in FIGS. 1 and 2, the winding deviation adjusting device 30 of the present embodiment mainly includes a shaft portion 31 that is slidably supported on the mounting frame 2, and a support portion 32 that extends from the shaft portion 31. Two rollers 33 that can rotate in the winding direction of the screen 4 at the lower end portion 32 a of the support portion 32.

  The shaft portion 31 in the winding deviation adjusting device 30 of the present embodiment is formed in a long plate shape, and is a slit-shaped guide base portion 2c that extends with a slide length L (see FIG. 2) in the left-right direction on the lower surface of the mounting frame 2. On the other hand, the support part 32 is inserted and pivotally supported. The support portion 32 is formed in a square bar shape so as to suppress relative rotation with respect to the guide base portion 2c, and thereby slides in the axial direction of the winding portion 3 without rotating the direction of the winding deviation adjusting device 30 in the left-right direction. It is possible. In addition, a rib can be provided in the front and back of the guide base 2c, and the shaft 31 can be configured to be prevented from rotating relative to the guide base 2c. Further, the slide length L of the winding deviation adjusting device 30 shown in FIG. 2 can be set to only the central region with respect to the front view of the roll screen 1, or can be almost the entire length in the left-right direction.

  The lower end portion 32 a of the support portion 32 is formed in a round shaft shape and supports the two rollers 33 so as to be rotatable in the winding direction of the screen 4. The two rollers 33 are held so as not to be detached from the round shaft-shaped lower end portion 32a, and function as predetermined weight members.

  Accordingly, the winding deviation adjusting device 30 of this embodiment shown in FIGS. 1 and 2 can be partially pressed from the outside against the screen 4 wound up by the winding unit 3 by the weight of the roller 33. . Thus, it can adjust so that the winding shift | offset | difference of the screen 4 may not arise by pressing against the screen 4 to wind up partially from the outside. After the winding deviation adjustment, as shown in FIG. 2, for example, a rubber positioning member 40 that is easy to attach and detach is engaged with the guide base 2 c, and the position of the winding deviation adjusting device 30 is fixed. In addition, it is good also as a structure which provides the locking mechanism which can lock the slide in the winding deviation adjustment apparatus 30 itself. As such a locking mechanism, for example, a mechanism capable of selecting a locked state and an unlocked state may be formed in the support portion 32.

  Next, the winding deviation adjusting method by the winding deviation adjusting device 30 of this embodiment and the operation thereof will be described. In the winding deviation adjusting step, first, the winding deviation adjusting device 30 of the present embodiment installed as shown in FIGS. 1 and 2 is positioned at a substantially central portion in the axial direction of the winding portion 3 to wind the screen 4. When a winding deviation occurs in the screen 4 in the trial operation of winding around the part 3, the winding deviation adjusting device 30 is slid in the direction in which the winding deviation occurs. That is, the partial pressing position by the winding deviation adjusting device 30 is displaced in the direction in which the winding deviation occurs.

  For example, winding is started from a state in which all the screens 4 of the winding unit 3 are rewound in a state where the winding deviation adjusting device 30 of the present embodiment is positioned at a substantially central portion in the axial direction of the winding unit 3.

  1 and 2, when winding deviation in the arrow A direction starts to occur, the winding deviation adjusting device 30 is also moved in the arrow A direction. When the winding deviation in the arrow B direction starts to occur, the winding deviation adjusting device 30 is also moved in the arrow B direction. Then, the winding of the screen 4 of the winding unit 3 is continued, and the winding deviation adjusting device 30 is slid in the direction in which the winding deviation occurs to finely adjust.

  At a position where no winding deviation occurs, for example, the positioning member 40 is used to lock the slide of the winding deviation adjusting device 30. In a state where the slide of the winding deviation adjusting device 30 is locked, the winding unit 3 winds or unwinds the screen 4 to reconfirm the winding deviation.

  Therefore, in the roll screen 1 provided with the winding deviation adjusting device 30 of the present embodiment shown in FIGS. 1 and 2, the screen 4 can be adjusted so that no winding deviation occurs in one or a few trial operations. .

  Further, even when a roll deviation occurs on the screen 4 at the installation site of the roll screen 1, the trial operation can be adjusted so that the winding deviation does not easily occur.

  Moreover, since the two rollers 33 rotate in response to the winding or unwinding of the screen 4 by the winding unit 3, there is no possibility that the screen 4 is damaged.

  The winding deviation adjusting device 30 may be variously modified other than the configuration illustrated in FIGS. 1 and 2.

(Modification 1)
3A, a winding deviation adjusting device 30 according to Modification 1 of the present embodiment includes a shaft portion 31 that is slidably supported on the mounting frame 2 and two support portions 32 that extend from the shaft portion 31. And one roller 33 that is rotatable in the winding direction of the screen 4 at the lower end portions 32 a of the two support portions 32. In the case of the first modification shown in FIG. 3A, the weight of one roller 33 can partially press the screen 4 wound by the winding unit 3 from the outside. Adjustment can be made so that no deviation occurs. And since the said one roller 33 rotates according to winding-up or unwinding of the screen 4 by the winding-up part 3, it is suitable from the possibility that the screen 4 may be damaged. Note that the number of support portions 32 and rollers 33 may be three or more.

(Modification 2)
The winding deviation adjusting device 30 of Modification 2 to the present embodiment shown in FIG. 3B includes a shaft portion 31 that is slidably supported on the mounting frame 2, a support portion 32 that extends from the shaft portion 31, and a support. It is comprised so that the weight-shaped edge part 34 attached to the lower end of the part 32 may be provided. Also in the case of the modification 2 shown in FIG. 3B, the weight of the weight-shaped end portion 34 can partially press the screen 4 wound by the winding portion 3 from the outside. Adjustments can be made so that no winding slip occurs. In this case, the support portion 32 may be a plurality of pieces or a plate shape in addition to a single square bar shape. Further, the contact surface with respect to the screen 4 is formed in a curved surface shape, for example, the weight-shaped end portion 34 is formed in a substantially cylindrical shape, so that the screen 4 can be prevented from being wound or unwound by the winding portion 3. The risk of hurting can be avoided.

(Modification 3)
A winding deviation adjusting device 30 of Modification 3 to the present embodiment shown in FIG. 4 includes a shaft portion 31 that is slidably supported on the mounting frame 2, and a spring (in this example, a compression spring) 35 from the shaft portion 31. One support portion 32 extending in a stretchable manner and two rollers 33 that are rotatable in the winding direction of the screen 4 at the lower end portion 32a of the one support portion 32 are configured. In addition, it is good also considering the support part 32 extended so that expansion-contraction by the spring 35 is two or more, or the number of the rollers 33 being one or three or more.

  In the case of this modification 3, unlike the embodiment shown in FIGS. 1 and 2, the guide base 2c formed on the lower surface of the mounting frame 2 is formed in a concave shape instead of a slit shape, and this guide base 2c. In addition, a projection 2d that pivotally supports the shaft 31 of the winding deviation adjusting device 30 is formed. The support portion 32 is formed in a square bar shape whose relative rotation with respect to the guide base portion 2 c is suppressed and which can be expanded and contracted by the spring 35. The shaft portion 31 may be configured to suppress the relative rotation with respect to the guide base portion 2c. Thus, the winding deviation adjusting device 30 can be slid in the axial direction of the winding unit 3 without rotating in the left-right direction, and is urged by the spring 35 in addition to the own weight of the two rollers 33 to wind the winding unit 3. The screen 4 to be taken can be partially pressed from the outside, and can be adjusted so that the screen 4 is not wound. When the spring 35 is composed of a compression spring, the pressing force can be increased when the screen 4 shown in FIG. 4B is thicker than when the weight bar 5 shown in FIG. it can. On the other hand, the spring 35 may be constituted by a tension spring so as to be biased against the weight of the two rollers 33. Therefore, adaptive adjustment with respect to the roll screen 1 of any form is possible by the combination of the roller 33 and the spring 35.

(Modification 4)
A winding deviation adjusting device 30 of Modification 4 to the present embodiment shown in FIG. 5 includes a round shaft portion 31 that is slidably supported on the mounting frame 2, and the screen 4 with the shaft portion 31 as a support shaft. Can be rotated in accordance with the winding diameter of the shaft 4, and can be rotated in the winding direction of the screen 4 by one support portion 32 extending obliquely downward from the shaft portion 31 and the lower end portion 32a of the one support portion 32. And two rollers 33. In addition, the one support part 32 extended diagonally downward from the axial part 31 can also be comprised so that it may extend on the outdoor side instead of the indoor side. And it is good also considering the number of the support parts 32 as 2 or more, or the number of the rollers 33 as 1 or 3 or more.

  In the case of this modification 4, unlike the embodiment shown in FIGS. 1 and 2, the guide base 2c formed on the lower surface of the mounting frame 2 is formed in a round concave shape instead of a slit shape. The round shaft portion 31 of the winding deviation adjusting device 30 is slidably and pivotally supported by 2c. Since the shaft portion 31 suppresses relative rotation with respect to the guide base portion 2c, the support portion 32 may have a square bar shape or a round bar shape.

  Thereby, the direction of the winding deviation adjusting device 30 of the modified example 4 can be slid in the axial direction of the winding unit 3 without rotating in the left-right direction, and the screen 4 is wound by the own weight of the two rollers 33. Therefore, the screen 4 can be partially pressed from the outside, and the screen 4 can be adjusted so as not to be wound. Moreover, it can be set as the weight-shaped edge part 34 like the modification 2 mentioned above (refer FIG.3 (b)) instead of setting it as the roller 33. FIG.

(Modification 5)
The winding deviation adjusting device 30 of Modification 5 to this embodiment shown in FIG. 6 includes a round shaft portion 31 that is slidably supported on the mounting frame 2 and a spring (in this example, a torsion spring or a leaf spring). ) And a support portion 32 that is configured to be rotatable according to the winding diameter of the screen 4 with the shaft portion 31 as a support shaft and extends obliquely downward from the shaft portion 31, and one support portion. And two rollers 33 that can rotate in the winding direction of the screen 4 at the lower end 32a of the screen 32. In addition, the one support part 32 extended diagonally downward from the axial part 31 can also be comprised so that it may extend on the outdoor side instead of the indoor side. And it is good also considering the number of the support parts 32 as 2 or more, or the number of the rollers 33 as 1 or 3 or more.

  In the case of this modified example 5, unlike the embodiment shown in FIGS. 1 and 2, the guide base 2c formed on the lower surface of the mounting frame 2 is formed in a round concave shape instead of a slit shape. The round shaft portion 31 of the winding deviation adjusting device 30 is slidably and pivotally supported by 2c and is urged by a spring 35. Since the shaft portion 31 suppresses relative rotation with respect to the guide base portion 2c, the support portion 32 may have a square bar shape or a round bar shape.

  Thereby, the direction of the winding deviation adjusting device 30 of the modified example 5 can be slid in the axial direction of the winding unit 3 without rotating in the left-right direction, and by the weight of the two rollers 33 and the biasing force of the spring 35. The screen 4 can be adjusted so as not to cause a winding shift by partially pressing the screen 4 from the outside. In addition, when the spring 35 is configured by a spring that compresses in the rotation direction, when the winding of the screen 4 shown in FIG. 6B is larger than that at the lower limit of the weight bar 5 shown in FIG. The pressing force can be increased. On the other hand, the spring 35 may be configured by a spring that pulls in the rotating direction, and may be configured to be biased against the weight of the two rollers 33. Therefore, adaptive adjustment with respect to the roll screen 1 of any form is possible by the combination of the roller 33 and the spring 35. Moreover, it can be set as the weight-shaped edge part 34 like the modification 2 mentioned above (refer FIG.3 (b)) instead of setting it as the roller 33. FIG.

  As described above, the roll screen 1 according to the first embodiment includes the above-described embodiment or its variation winding deviation adjusting device 30 having a pressing portion that partially presses the winding portion 3 from the outside. By making this pressing portion displaceable along the longitudinal direction of the winding portion 3, it is possible to easily adjust the screen 4 so as not to cause winding displacement.

[Second Embodiment]
Next, the roll screen 1 according to the second embodiment will be described with reference to FIGS. 7 to 10.

  On the other hand, the roll screen 1 of the second embodiment shown in FIGS. 7 to 10 is provided with a pressing portion that presses the winding portion 3 from the outside, and this pressing portion is along the longitudinal direction of the winding portion 3. It is configured so that it can be partially pressed from the outside (configuration illustrated in FIGS. 7 to 9), or configured so that the pressing force varies along the longitudinal direction of the winding unit 3 (illustrated in FIG. 10). And a portion that generates the maximum pressing force is configured to be movable along the longitudinal direction of the winding unit 3, and is configured to include the pressing unit according to the second embodiment. The winding deviation adjusting device 30 according to the embodiment or the modification thereof is configured as a light shielding fin that can be adjusted so that the winding deviation of the screen 4 does not occur and has a light leakage preventing function.

  The roll screen 1 of the second embodiment is configured in substantially the same manner as the roll screen 1 of the first embodiment shown in FIGS. 1 and 2 except that the configurations relating to the winding deviation adjusting device 30 and the mounting frame 2 are different. Yes. For this reason, in the following description, the structure which concerns on the winding deviation adjustment apparatus 30 and the attachment frame 2 is demonstrated in detail.

(Winding deviation adjusting device of one embodiment)
FIG. 7 is a partial exploded perspective view showing a schematic configuration of the winding deviation adjusting device 30 of one example in the roll screen 1 of the second embodiment according to the present invention. FIGS. 8A and 8B are side cross-sectional views showing the operation of the winding deviation adjusting device 30 of one example in the roll screen 1 of the second embodiment according to the present invention. Since the winding deviation adjusting device 30 of the present embodiment can be configured as a light-shielding fin having a light leakage prevention function that can block light leakage from a gap generated between the winding unit 3 and the mounting frame 2, It is pivotally supported on the back side of the mounting frame 2 and is rotatable relative to the mounting frame 2. However, you may comprise so that the winding deviation adjustment apparatus 30 of a present Example may be pivotally supported in the front side or bottom face side of the attachment frame 2. FIG.

  Referring to FIGS. 7 and 8, the winding deviation adjusting device 30 of the present embodiment extends substantially over the entire length of the mounting frame 2 and is pivotally supported with respect to the bearing portion 20 of the mounting frame 2. A shaft portion 31 having a substantially C-shaped cross section, a support portion 32 extending in a plate shape from the shaft portion 31, and two rollers slidable at the lower end portion 32a of the support portion 32 and rotatable in the winding direction of the screen 4 33. In the example shown in the figure, the support portion 32 has a substantially flat plate shape, but may have a curved plate shape.

  The lateral width of the shaft portion 31 and the support portion 32 is configured to be slightly shorter than the lateral width of the mounting frame 2. For example, when the support portion 32 is made of a synthetic resin, it is slightly shorter than the horizontal width of the mounting frame 2 when the horizontal width of the support portion 32 is made of synthetic resin. Even if the direction width changes, the rotation is smoothly supported.

  On the front surface of the mounting frame 2, a bearing portion 20 having a substantially reverse C-shaped cross section made of a lower bearing piece 20a and an upper bearing piece 20b shown in FIG. 8 extends in the longitudinal direction. The shaft portion 31 of the winding deviation adjusting device 30 is engaged with the bearing portion 20, so that the winding deviation adjusting device 30 is rotatably supported on the front side of the mounting frame 2. Support members 2 a and 2 b are attached to both ends of the mounting frame 2 in the longitudinal direction.

  The support members 2 a and 2 b are provided with a notch 23 having a size that substantially matches the substantially C-shaped cross-sectional shape of the bearing portion 20 of the mounting frame 2. This notch 23 is used to enable the shaft 31 of the winding deviation adjusting device 30 to be slid from the left and right direction and inserted into the bearing portion 20 after the mounting frame 2 is fixed by the support members 2a and 2b. Is provided. Then, the winding deviation adjusting device 30 can be slid and removed.

  Further, a screw hole 21 for fixing the mounting frame 2 using mounting screws and a fixed shaft (not shown) for rotatably supporting the winding unit 3 are fixed to the support members 2a and 2b. Screw holes 22 are provided at a plurality of locations. The side cover 10 is attached from the viewpoint of the design property. Further, the side cover 10 is formed with a wall portion 10a having a height so as to restrict both end positions in the left-right direction of the winding deviation adjusting device 30 within the rotation range of the winding deviation adjusting device 30. 30 smooth rotations are possible.

  Regarding the lower bearing piece 20a and the upper bearing piece 20b constituting the bearing portion 20 of the mounting frame 2, the lower bearing piece 20a extends upward from the bottom of the mounting frame 2, forms a bent shaft at the tip thereof, and is unwinding. The shaft portion 31 of the adjusting device 30 can be supported and has a function of restricting the downward rotation of the winding deviation adjusting device 30. Further, the upper bearing piece 20b has a function of restricting the upward rotation of the winding deviation adjusting device 30.

  The lower end portion 32 a of the support portion 32 is formed in a round shaft shape and supports one roller 33 so as to be rotatable in the winding direction of the screen 4. One roller 33 is held so as not to be detached from the round shaft-like lower end portion 32a, and functions as a predetermined weight member.

  Therefore, the winding deviation adjusting device 30 of the present embodiment shown in FIGS. 7 and 8 is partially applied from the outside to the screen 4 taken up by the winding unit 3 due to the weight of the winding deviation adjusting device 30 including the roller 33. Can be pressed. Thus, it can adjust so that the winding shift | offset | difference of the screen 4 may not arise by pressing against the screen 4 to wind up partially from the outside. In the example shown in FIG. 7 after adjusting the winding deviation, the rubber-like positioning member 40 that can be moved and locked is engaged with the round shaft-like lower end portion 32a, and the position of the roller 33 is fixed. In addition, it is good also as a structure which provides the lock mechanism which can lock the slide to roller 33 itself. As such a locking mechanism, for example, a mechanism capable of selecting a locked state and an unlocked state may be formed at both ends of the roller 33 in the axial direction. The number of rollers 33 may be one or three or more.

  In this embodiment, the roller 33 is always in contact with and pressed against the screen 4 regardless of the winding diameter of the screen 4. Then, in the winding deviation adjusting step, when a winding deviation occurs in the screen 4 in the trial operation of winding the screen 4 around the winding unit 3, the roller 33 is slid in the direction in which the winding deviation occurs. For example, when the winding deviation in the arrow A direction starts to occur, the roller 33 is also moved in the arrow A direction. When the winding deviation in the arrow B direction starts to occur, the roller 33 is also moved in the arrow B direction. Then, the winding of the screen 4 of the winding unit 3 is continued, and the roller 33 is slid in the direction in which the winding deviation occurs and fine adjustment is performed.

  For example, the positioning member 40 is used to lock the slide of the roller 33 at a position where no winding deviation occurs. In a state where the slide of the roller 33 is locked, the screen 4 is wound or rewound by the winding unit 3 to reconfirm the winding deviation.

  Therefore, in the roll screen 1 provided with the winding deviation adjusting device 30 of the present embodiment shown in FIGS. 7 and 8, the screen 4 can be adjusted so that no winding deviation occurs in one or a few trial operations. .

  In particular, in the winding deviation adjusting device 30 of the present embodiment shown in FIGS. 7 and 8, even at the lower limit of the weight bar 5 shown in FIG. 8A and when the screen 4 shown in FIG. Since it can be configured as a light-shielding fin having a light leakage prevention function capable of shielding light leakage from a gap generated between the winding unit 3 and the mounting frame 2, its functionality is improved.

(Winding deviation adjusting device of Modification 1)
Then, with reference to FIG. 9, the winding deviation adjustment apparatus 30 of the modification 1 in the roll screen 1 of 2nd Embodiment is demonstrated. As described above, the winding deviation adjusting device 30 of the first modification of the roll screen 1 of the second embodiment can be adjusted so as not to cause the winding deviation of the screen 4, and as a light shielding fin having a light leakage prevention function. Composed. And the roll screen 1 of 2nd Embodiment is the roll screen 1 of 1st Embodiment shown in FIG.1 and FIG.2 except the point from which the structure which concerns on the winding deviation adjustment apparatus 30 and the attachment frame 2 differs similarly to the above-mentioned. The configuration is almost the same. For this reason, in the following description, the structure which concerns on the winding deviation adjustment apparatus 30 and the attachment frame 2 is demonstrated in detail.

  FIG. 9 is a partial exploded perspective view showing a schematic configuration relating to the winding deviation adjusting device 30 of Modification 1 of the roll screen 1 of the second embodiment according to the present invention. The winding deviation adjusting device 30 according to the first modified example, like the winding deviation adjusting apparatus 30 according to the embodiment shown in FIGS. 7 and 8, prevents light leakage from a gap generated between the winding unit 3 and the mounting frame 2. It is configured as a light shielding fin having a light leakage preventing function capable of shielding.

  Referring to FIG. 9, the winding deviation adjusting device 30 of the first modification extends substantially over the entire length of the mounting frame 2 and is pivotally supported so as to be rotatable with respect to the bearing portion 20 of the mounting frame 2. A shaft portion 31 having a C-shaped cross section, a support portion 32 extending in a plate shape from the shaft portion 31, and a weight member 36 that is slidable at a lower end portion 32 b of the support portion 32 in the winding direction of the screen 4. Are configured. In the example shown in the figure, the support portion 32 has a substantially flat plate shape, but may have a curved plate shape.

  The lateral widths of the shaft portion 31 and the support portion 32 are configured to be slightly shorter than the lateral width of the mounting frame 2, similarly to the winding deviation adjusting device 30 of the embodiment shown in FIGS. 7 and 8. Then, on the front surface of the mounting frame 2, a bearing portion 20 having a substantially reverse C-shaped cross section composed of a lower bearing piece 20 a and an upper bearing piece 20 b is formed extending in the longitudinal direction thereof. The shaft portion 31 of the adjusting device 30 is engaged, whereby the winding deviation adjusting device 30 is rotatably supported on the front side of the mounting frame 2. The bearing portion 20, the support members 2a and 2b, and the side cover 10 of the mounting frame 2 have the same configuration as described with reference to FIG.

  The lower end portion 32b of the support portion 32 is formed in a round shaft shape, and supports a weight member 36 having a substantially C-shaped cross section and having a predetermined length so as to be slidable. The weight member 36 having a substantially C-shaped cross section is slidably held so as not to be detached from the lower end portion 32b having a round shaft shape, but is locked by elastic deformation so as not to move easily unless intentionally moved. Can function as a predetermined weight member.

  Therefore, the winding deviation adjusting device 30 of the first modification can be partially pressed from the outside against the screen 4 taken up by the winding unit 3 due to its own weight of the winding deviation adjusting device 30 including the weight member 36. ing. In this way, by partially pressing the screen 4 taken up by the take-up unit 3 from the outside, it is possible to adjust so that the screen 4 is not displaced. After the winding deviation adjustment, in the example shown in FIG. 9, the positioning is performed by the engaging force of the weight member 36, and the position is fixed.

  In this example, the weight member 36 is always in contact with and pressed against the screen 4 regardless of the winding diameter of the screen 4. Then, in the winding deviation adjustment step, when a winding deviation occurs in the screen 4 in the trial operation of winding the screen 4 around the winding unit 3, the weight member 36 is slid in the direction in which the winding deviation occurs. For example, when winding deviation in the arrow A direction starts to occur, the weight member 36 is also moved in the arrow A direction. When the winding deviation in the arrow B direction starts to occur, the weight member 36 is also moved in the arrow B direction. Then, the winding of the screen 4 of the winding unit 3 is continued, and the weight member 36 is slid in the direction in which the winding deviation occurs and fine adjustment is performed.

  The slide adjustment of the weight member 36 is stopped at a position where the winding deviation does not occur, and the winding 4 rewinds or rewinds the screen 4 to reconfirm the winding deviation.

  Therefore, even in the roll screen 1 including the winding deviation adjusting device 30 according to the first modification, the screen 4 can be adjusted so that no winding deviation occurs in one or a few trial operations.

  And also in the winding deviation adjustment apparatus 30 of the modification 1, it can comprise as a light-shielding fin which has the light leakage prevention function which can shield the light leakage from the clearance gap which arises between the winding part 3 and the attachment frame 2. FIG. Because it can, its functionality is improved.

(Winding deviation adjusting device of Modification 2)
Then, with reference to FIG. 10, the winding deviation adjustment apparatus 30 of the modification 2 in the roll screen 1 of 2nd Embodiment is demonstrated. As described above, the winding deviation adjusting device 30 of Modification 2 of the roll screen 1 according to the second embodiment can be adjusted so as not to cause the winding deviation of the screen 4, and as a light shielding fin having a light leakage prevention function. Composed. And the roll screen 1 of 2nd Embodiment is the roll screen 1 of 1st Embodiment shown in FIG.1 and FIG.2 except the point from which the structure which concerns on the winding deviation adjustment apparatus 30 and the attachment frame 2 differs similarly to the above-mentioned. The configuration is almost the same. For this reason, in the following description, the structure which concerns on the winding deviation adjustment apparatus 30 and the attachment frame 2 is demonstrated in detail.

  FIG. 10A is a partial side cross-sectional view showing a schematic configuration of a roll screen according to a second embodiment of the present invention that includes the winding deviation adjusting device 30 according to the second modification, and FIG. 6 is a rear view illustrating an axial pressure distribution of the winding deviation adjusting device 30 of Example 2. FIG.

  The winding deviation adjusting device 30 of the second modification shields light leakage from the gap generated between the winding unit 3 and the mounting frame 2, similarly to the winding deviation adjusting device 30 of the embodiment shown in FIGS. 7 and 8. It is configured as a light shielding fin having a light leakage prevention function.

  However, the winding deviation adjusting device 30 of Modification 2 is provided with a pressing portion that presses the winding portion 3 from the outside, and this pressing portion is configured so that the pressing force varies along the longitudinal direction of the winding portion 3. In this example, the portion that generates the maximum pressing force is configured to be movable along the longitudinal direction (axial direction) of the winding unit 3.

  Referring to FIG. 10A, the winding deviation adjusting device 30 of the second modification extends over substantially the entire length of the mounting frame 2 and is pivotally supported with respect to the bearing portion 20 of the mounting frame 2. A shaft portion 31 having a substantially C-shaped cross section, a support portion 32 extending in a plate shape from the shaft portion 31, and a weight member that is engaged in the winding direction of the screen 4 so as to be movable at a lower end portion 32 c of the support portion 32. 36. In the example shown in the figure, the support portion 32 has a substantially flat plate shape, but may have a curved plate shape. The support portion 32 itself is formed of a synthetic resin material that is not a rigid body, that is, a synthetic resin material that is flexible and can be elastically deformed by the weight of the weight member 36.

  The lateral widths of the shaft portion 31 and the support portion 32 are configured to be slightly shorter than the lateral width of the mounting frame 2, similarly to the winding deviation adjusting device 30 of the embodiment shown in FIGS. 7 and 8. Then, on the front surface of the mounting frame 2, a bearing portion 20 having a substantially reverse C-shaped cross section composed of a lower bearing piece 20 a and an upper bearing piece 20 b is formed extending in the longitudinal direction thereof. The shaft portion 31 of the adjusting device 30 is engaged, whereby the winding deviation adjusting device 30 is rotatably supported on the front side of the mounting frame 2. The bearing portion 20, the support members 2a and 2b, and the side cover 10 of the mounting frame 2 have the same configuration as described with reference to FIG.

  The lower end portion 32c of the support portion 32 is bent and formed in a substantially C-shaped cross section so as to sandwich and hold the substantially cylindrical weight member 36, and supports the weight member 36 so as to be slidable. In addition, the substantially cylindrical weight member 36 can be formed in any shape, and is held movably so as not to be disengaged from the bent lower end portion 32c. It can be engaged by elastic deformation of the lower end 32c so as not to move, and functions as a predetermined weight member.

  In addition, since the support portion 32 itself is formed of a synthetic resin material having flexibility that can be elastically deformed by the weight of the weight member 36, the lower end portion 32 c of the support portion 32 extends in the axial direction of the winding portion 3. Although it is in contact with the screen 4 so that a pressing force is applied over the entire length, the pressure distribution is strongly pressed in the vicinity where the weight member 36 in the axial direction is located. For example, as illustrated in FIG. 10B, the pressing force in the vicinity where the weight member 36 in the axial direction is the maximum (Fmax), and the pressing forces F1 and F2 that are weaker than Fmax in the vicinity of the left and right ends, respectively. This pressure distribution can be changed by moving the position of the weight member 36. As described above, the portion that generates the maximum pressing force in the support portion 32 is made possible by the movement of the weight member 36 along the longitudinal direction (axial direction) of the winding portion 3.

  In this way, the weight member 36 can be moved in the axial direction so that the position of the strong pressure in the pressure distribution can be adjusted, and the weight member 36 is placed so as to indirectly press the screen 4.

  Accordingly, the winding deviation adjusting device 30 of the second modification shown in FIG. 10 presses the screen 4 taken up by the winding unit 3 from the outside over its entire length due to its own weight. Depending on the position of the weight member 36, it is possible to partially apply a strong pressure. In this way, the entire screen 4 is pressed from the outside against the screen 4 to be wound, and the pressure distribution is partially (locally) strongly adjusted so that the screen 4 is not displaced. Can do.

  In this example, regardless of the winding diameter of the screen 4, the lower end portion 32c of the support portion 32 is always in contact with and pressed against the screen 4 over its entire length. Then, in the winding deviation adjustment step, when a winding deviation occurs in the screen 4 in the trial operation of winding the screen 4 around the winding unit 3, the weight member 36 is slid in the direction in which the winding deviation occurs. For example, when winding deviation in the arrow A direction starts to occur, the weight member 36 is also moved in the arrow A direction. When the winding deviation in the arrow B direction starts to occur, the weight member 36 is also moved in the arrow B direction. Then, the winding of the screen 4 of the winding unit 3 is continued, and the weight member 36 is slid in the direction in which the winding deviation occurs and fine adjustment is performed.

  The slide adjustment of the weight member 36 is stopped at a position where the winding deviation does not occur, and the winding 4 rewinds or rewinds the screen 4 to reconfirm the winding deviation.

  Therefore, in the roll screen 1 of the second embodiment provided with the winding deviation adjusting device 30 of the modified example 2 shown in FIG. 10, adjustment is made so that no winding deviation occurs on the screen 4 by one or a few trial operations. Can do.

  In particular, the winding deviation adjusting device 30 according to the second modification shown in FIG. 10 is configured as a light shielding fin having a light leakage prevention function capable of shielding light leakage from a gap generated between the winding unit 3 and the mounting frame 2. Can improve its functionality.

  As described above, in the roll screen 1 of the second embodiment, the roller 33, the weight-like end portion 34, or the weight member 36 in the winding deviation adjusting device 30 of each example can be moved in the axial direction of the winding portion 3. Then, the screen 4 wound by the winding unit 3 is partially pressed from the outside by the roller 33 or the weighted end 34 or locally pressed by the weight member 36 so as to have a total length in the axial direction. It is possible to easily adjust the screen 4 so that the screen 4 is not wound out by pressing over the entire length.

[Third Embodiment]
Then, with reference to FIG. 11, the roll screen 1 of 3rd Embodiment is demonstrated.

  Moreover, the roll screen 1 of 3rd Embodiment shown in FIG. 11 is provided with the press part which presses against the winding part 3 from the outside, and this press part is the unit per the longitudinal direction with respect to the winding part 3. An example in which the pressing distance or the area is pressed so that the pressing distance or the area is different in the longitudinal direction (the pressing variable part), and the maximum pressing distance or area is configured to be adjustable along the longitudinal direction of the winding unit 3 Thus, the winding deviation adjusting device 30 of the embodiment having the pressing portion can be adjusted so as not to cause the winding deviation of the screen 4, and can also be configured as a light shielding fin having a light leakage prevention function.

  The winding deviation adjusting device 30 of one example in the roll screen 1 of the third embodiment is an example that allows adjustment so that the winding deviation of the screen 4 does not occur, but is also configured as a light shielding fin having a light leakage prevention function. It is an example that makes it possible. The roll screen 1 of the third embodiment is configured in substantially the same manner as the roll screen 1 of the first embodiment shown in FIGS. 1 and 2 except that the winding deviation adjusting device 30 and the configuration for supporting the roll deviation adjusting device 30 are different. . For this reason, in the following description, the structure which concerns on the winding deviation adjustment apparatus 30 is demonstrated in detail.

(Winding deviation adjusting device of one embodiment)
FIG. 11 is a partial exploded perspective view showing a schematic configuration of the roll screen according to the third embodiment of the present invention from the back side. The winding deviation adjusting device 30 of one example according to the third embodiment is pivotally supported by a support member 2h fixed to a mounting surface S such as a ceiling surface, and is rotatable in this example. In this example, since the supporting members 2a and 2b are also configured to be fixed to the mounting surface S such as the ceiling surface, the winding deviation adjusting device 30 of one embodiment may be pivotally supported with respect to the supporting members 2a and 2b. . The winding deviation adjusting device 30 of one embodiment can be configured as a light-shielding fin having a light leakage prevention function that can block light leakage from a gap generated between the winding unit 3 and the mounting frame 2. Alternatively, it can be intended only for winding deviation adjustment without having such a light leakage prevention function.

  Referring to FIG. 11, the winding deviation adjusting device 30 of the present embodiment is a bearing portion of a support member 2 h having an arbitrary shape (in the illustrated example, a U shape) fixed to a mounting surface S such as a ceiling surface. A shaft portion 31 having projecting portions in both the left and right directions so as to be pivotally supported with respect to the shaft 20, and a curved plate shape extending from the shaft portion 31, and pressing and non-pressing states from the outside to the screen 4 respectively A plurality of pressing position adjusting portions 37 that can be adjusted in the axial direction of the winding portion 3, and a weight-like end portion 34 that forms the lower end portion of the supporting portion 32. The The plurality of pressing position adjusting units 37 are configured by n pieces (n is an integer of 2 or more), and are illustrated as “37-1”, “37-2”,..., “37-n” in FIG. Yes. The weight-shaped end portion 34 may have a continuous shape with the support portion 32 when the support portion 32 has sufficient weight to press the screen 4. Show. In the illustrated example, the support portion 32 has a curved plate shape, but may have a flat plate shape. Further, the plurality of pressing position adjusting units 37 may be arranged in a plurality of rows instead of one in the axial direction of the winding unit 3.

  Each of the plurality of pressing position adjustment units 37 is configured to be able to deform the `` upwardly convex state '' and the `` downwardly convex state '' by elastic deformation, and is in a state of pressing / non-pressing from the outside. By changing the abutment / non-abutment state of each pressing position adjustment unit 37, it can be selectively set by an adjuster who performs winding deviation adjustment.

  Note that the winding deviation adjusting device 30 of this embodiment shown in FIG. 11 has “37-1”, “37-2” as the pressing position adjusting portion 37, as shown in the enlarged view of FIG. "" Is a "state projecting upward", and "37-n" is a "state projecting downward". When a certain pressing position adjusting unit 37 in a “convex state” comes into contact with and presses the screen 4, another pressing position adjusting unit 37 in a “protruding state” is used. Is not in contact with the screen 4 (see FIG. 12B). Further, the elastic deformation state of each of the plurality of pressing position adjusting portions 37 has a strength that does not change due to its own weight of the winding deviation adjusting device 30 including the weight-shaped end portion 34, but is intended by the adjuster who performs the winding deviation adjustment. The state can be changed by pressurizing automatically.

  On the other hand, as the winding deviation adjusting device 30 of the modified example, each of the plurality of pressing position adjusting portions 37 elastically deforms “a state in which it protrudes upward” and “a state in which it is continuous with the curved surface of the curved support portion 32”. It is also possible to configure such that the state of pressing / non-pressing from the outside can be selectively set by an adjuster who performs winding deviation adjustment.

  For example, as shown in FIG. 13A, the winding deviation adjusting device 30 according to the modified example has “37-1” and “37-2” as “pressing upward” as the pressing position adjusting unit 37. “37-n” indicates a state where “the curved surface of the curved support portion 32 is continuous”. When the curved support portion 32 including a certain pressing position adjusting portion 37 in a “continuous state with the curved surface of the curved support portion 32” is in contact with and pressed against the screen 4, The other pressing position adjusting portion 37 in the “state to be” is not in contact with the screen 4 (see FIG. 13B). Also in this case, the elastic deformation state of each of the plurality of pressing position adjusting portions 37 has a strength that does not change due to the weight of the winding displacement adjusting device 30 including the weight-shaped end portion 34, but an adjuster that performs winding displacement adjustment. The state can be changed by intentionally applying pressure. Also in the winding deviation adjusting device 30 of the modification, each of the plurality of pressing position adjusting units 37 presses the winding unit 3 so that the pressing distance or area per unit in the longitudinal direction is different in the longitudinal direction. Therefore, the maximum pressing distance or area is adjusted along the longitudinal direction of the winding unit 3 and pressed against the screen 4 with a press distribution having selective strong pressure parts. Can do.

  Therefore, the winding deviation adjusting device 30 of the present embodiment and its modification is partially pressed from the outside against the screen 4 wound up by the winding section 3 unlike the above-described embodiments and modifications. No sliding mechanism or moving mechanism is provided. Instead, in the winding deviation adjusting device 30 of this embodiment and its modification, the elastic deformation state of each of the plurality of pressing position adjusting units 37 is selectively set so that the screen 4 wound by the winding unit 3 is used. On the other hand, it is the structure which can press in the axial direction of the winding part 3 from the outside partially, or with the press distribution which has a selective strong pressure site | part.

  In addition, when it is not necessary to adjust the winding deviation by the pressing position adjusting unit 37, the elastic deformation state of all the pressing position adjusting units 37 can be set to the “upwardly convex state”.

  In the winding deviation adjusting method according to the winding deviation adjusting device 30 of the present embodiment and the modification thereof, when the screen 4 is unwound by the trial operation of winding the screen 4 around the winding unit 3, the winding deviation is generated in the direction in which the unwinding occurs. Then, any one of the plurality of pressing position adjusting portions 37 is set and adjusted to “a state where it protrudes downward” or “a state where it is continuous with the curved surface of the curved support portion 32”. For example, when the winding deviation in the arrow A direction starts to occur, the “state protruding downward” or “the state continuous with the curved surface of the curved support portion 32” is also moved in the arrow A direction. Further, when the winding deviation in the arrow B direction starts to occur, the “state protruding downward” or “the state continuous with the curved surface of the curved support portion 32” is also moved in the arrow B direction. Then, the winding of the screen 4 of the winding unit 3 is continued, and fine adjustment is performed by moving the “state protruding downward” in the direction in which the winding deviation occurs.

  When the winding deviation does not occur, the setting change of the plurality of pressing position adjustment units 37 is stopped. In this stopped state, the winding unit 3 winds or rewinds the screen 4 to reconfirm the winding deviation.

  Therefore, also in the roll screen 1 of the third embodiment, it is possible to adjust so that no winding deviation occurs in the screen 4 by one or a few trial operations. In addition, you may provide the roller 33 in each of the some press position adjustment part 37. FIG.

  Thus, the roll screen 1 of the third embodiment shown in FIG. 11 is such that the pressing distance or area per unit in the longitudinal direction of the winding unit 3 differs in the longitudinal direction (axial direction of the winding unit 3). Since the portion which is configured and has the maximum pressing distance or area can be adjusted along the longitudinal direction, the screen 4 can be easily adjusted so that no winding deviation occurs.

  The present invention has been described above with reference to specific embodiments. However, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the technical concept thereof. For example, the arrangement including the position for pivotally supporting the winding deviation adjusting device 30 of each example or modification in the roll screen 1 of the first to third embodiments can be changed according to the application. Further, as described in the third embodiment as an example, the shaft portion 31 in the winding deviation adjusting device 30 may be pivotally supported with respect to a predetermined support, except for being directly pivotally supported with respect to the mounting frame 2. In addition, the supporting members 2a and 2b and the other supporting members 2h can be supported. Any winding deviation adjusting device 30 can be configured to be biased by the spring 35.

  According to the present invention, since it can be easily adjusted so as not to cause the screen to be unrolled, it is useful for a roll screen.

DESCRIPTION OF SYMBOLS 1 Roll screen 2 Mounting frame 2a, 2b Support member 2c Guide base part 2h Support member 3 Winding part 4 Screen 5 Weight bar 20 Bearing part 30 Winding deviation adjusting device 31 Shaft part 32 Support part 33 Roller 34 Conical end part 35 Spring 36 Weight member 37 Pressing position adjustment unit 40 Positioning member

Claims (9)

A roll screen that winds or rewinds the screen by a winding unit,
A roll screen characterized in that a pressing portion for partially pressing the winding portion from the outside is provided, and the pressing portion can be changed along the longitudinal direction of the winding portion. A roll screen that winds or rewinds the screen by a winding unit,
A pressing portion that presses the winding portion from the outside is provided, and the pressing portion is configured such that the pressing force varies along the longitudinal direction of the winding portion, and a portion that generates the maximum pressing force is provided. A roll screen configured to be movable along a longitudinal direction of the winding unit. A roll screen that winds or rewinds the screen by a winding unit,
A pressing portion that presses the winding portion from the outside is provided, and the pressing portion includes a portion that presses the winding portion so that the pressing distance or area per unit in the longitudinal direction differs in the longitudinal direction. The roll screen is characterized in that the maximum pressing distance or area can be adjusted along the longitudinal direction of the winding portion.   The roll screen according to claim 1, wherein the pressing portion is configured to be able to press the screen directly or indirectly by a weight portion slidable in the axial direction of the winding portion. .   The pressing portion is configured to be selected and set by a plurality of pressing position adjusting portions that can adjust the state of pressing and non-pressing from the outside in the axial direction of the winding portion. Item 4. A roll screen according to Item 3.   The roll screen according to any one of claims 1 to 5, wherein the pressing portion is formed on a light-shielding fin that can block light leakage from an upper gap of the winding portion. .   The roll screen according to claim 6, wherein the light shielding fin is configured to be rotatable according to a winding diameter of the screen.   The roll screen according to claim 1, wherein the pressing unit includes one or more rollers that are rotatable in a winding direction of the screen.   The roll screen according to any one of claims 1 to 8, wherein the pressing portion is biased by a predetermined biasing means.