JP2020041421A - Rolling screen - Google Patents

Abstract

To provide a rolling screen capable of restricting a light leakage of an embodiment with a high practicality.SOLUTION: A rolling screen 1 according to the invention comprises a shading fin 9 for restricting a light leakage occurring at an upper side of a winding pipe 3. A shaft part 91 of the shading fin 9 prevents direct incident light between fixing means (a mount frame 2 or support members 2a, 2b, etc.) and winding means (a winding pipe 3) at least an angle of elevation greater than 0 degree, and is pivoted movably in a vertical direction to the fixation means not to contact the screen from a lower limit to a predetermined height as well. In addition, the shading fin 9 according to one embodiment is non contact with the screen even with its maximum winding diameter, and preferably, is further configured to slowly rotate by an interference of the screen with a weight member. In addition, the shading fin 9 according to one embodiment is preferably configured to rotate by tension of an operation cord when the operation cord contacts the shading fin 9 in a pull operation of the operation cord.SELECTED DRAWING: Figure 17

Description

  The present invention relates to a roll screen that raises and lowers a screen to adjust the amount of light taken into a room.

  2. Description of the Related Art Conventionally, there is a roll screen that can raise and lower a screen to adjust the amount of light taken into a room.

  The roll screen supports a take-up pipe by a frame (for example, a mount frame) attached to a mount surface such as a ceiling surface via a bracket, and attaches an upper edge of the screen to the take-up pipe. By hanging the screen and winding or rewinding the screen with a winding pipe, the amount of light collected into the room can be adjusted.

  Therefore, in order to prevent light leakage from a gap between a winding shaft for winding the screen (that is, a winding pipe) and a lower surface of a frame supporting the winding pipe, a base is provided on a lower surface of the frame. There is disclosed a technique of providing a gap preventing member that rotatably supports an end edge and hangs down on a peripheral surface of a winding pipe (for example, see Patent Document 1).

Japanese Utility Model Publication No. 4-48316

  In the technique disclosed in Patent Document 1 described above, since the gap between the winding shaft and the lower surface of the frame (that is, the mounting frame) can be closed by the gap preventing member, the screen is lowered to close the screen. This is effective in that the light-shielding property can be improved in the case of the above.

  However, in the technique disclosed in Patent Literature 1, the gap preventing member attached to the lower surface of the frame has a structure that may be damaged by collision of the weight member (weight bar), and there is room for improvement. There is. In addition, when the screen is made of a relatively hard material, when the screen comes into contact with the gap preventing member, the contact sound may cause an uncomfortable feeling to the operator, and there is room for improvement.

  An object of the present invention is to provide a roll screen capable of suppressing light leakage in a highly practical manner in view of the above-described problems.

  The roll screen according to one aspect of the present invention is a roll screen that raises and lowers the screen to adjust the amount of light taken into the room, and winds up and supports the screen so that the screen can be wound up. And a light shielding fin for suppressing light leakage occurring above the winding means, wherein the light shielding fin has an elevation angle of at least 0 degree or more between the fixing means and the winding means. The apparatus is characterized in that the fixing means is vertically movably supported by the fixing means so as to prevent direct incident light and not contact the screen from a lower limit to a predetermined height.

  Furthermore, a roll screen according to still another aspect of the present invention is a roll screen that raises and lowers the screen to adjust the amount of light taken into the room, and a winding unit that suspends and supports the screen so that the screen can be wound up. Fixing means for supporting the winding means, and light shielding fins for suppressing light leakage occurring above the winding means, wherein the light shielding fins are not in contact with the screen even at the time of its maximum winding diameter. Characterized by being rotatably supported by the fixing means.

  Further, in a roll screen according to still another aspect of the present invention, a rotation restricting portion for restricting a rotation range of the light-blocking fin is provided on one or both of the light-blocking fin and the fixing means. , Or as a separate member.

  Further, in a roll screen according to still another aspect of the present invention, the rotation restricting portion may be configured to provide a space between the light-shielding fin and a peripheral surface of the screen at the time of a maximum winding diameter of the screen. The angle is adjusted.

  Furthermore, a roll screen according to still another aspect of the present invention is a roll screen that raises and lowers the screen to adjust the amount of light taken into the room, and a winding unit that suspends and supports the screen so that the screen can be wound up. Fixing means for supporting the winding means, and light shielding fins for suppressing light leakage generated above the winding means, wherein the light shielding fins rotate slowly due to interference with the weight member of the screen. In this case, the fixing means is rotatably supported by the fixing means.

  In another aspect of the roll screen according to the present invention, the light-blocking fins are rotatably supported by the fixing means so as to have a resistance that does not hinder the weight drop.

  Further, in a roll screen according to still another aspect of the present invention, a rotation reduction unit for reducing a speed at which the light shielding fin is rotated is provided in the light shielding fin.

  In another aspect of the roll screen according to the present invention, the rotation reduction section has a damper function of reducing vibration when the light shielding fin rotates.

  Further, in a roll screen according to still another aspect of the present invention, the rotation speed-reducing portion may be formed of a member attached to a shaft of the light-blocking fin, or may be formed with respect to a shaft of the light-blocking fin. It is characterized by being integrally molded.

  Further, in a roll screen according to still another aspect of the present invention, the rotation reduction unit is configured by a grease damper or an oil damper.

  In another aspect of the roll screen according to the present invention, there is provided a roll screen in which the screen can be raised and lowered by winding or rewinding with an operation code, and the screen is suspended and supported so that the screen can be wound up. Means, operating means for operating the winding or rewinding of the screen by an operation code, fixing means for supporting the winding means, and light-blocking fins for suppressing light leakage occurring above the winding means. The light-shielding fins are provided on the side where the operation code is pulled in the front-rear direction of the winding means, and are supported rotatably directly or indirectly with respect to the fixing means, It is configured to rotate by the tension of the operation code when the operation code comes into contact with the light-blocking fin during the pulling operation. And it features.

  In another aspect of the roll screen according to the present invention, the light-blocking fins are provided so as to cover at least a part of the operation unit.

  Further, in a roll screen according to still another aspect of the present invention, the light-shielding fin has a curved protruding portion which is protruded into a curved shape capable of contacting the operation code.

  ADVANTAGE OF THE INVENTION According to this invention, a light-shielding fin is attached by the structure which does not have a possibility of being damaged by the collision of a weight member (weight bar), and the light leak from the clearance gap which arises between a winding pipe and a mounting frame is effectively shielded. can do. In addition, the contact noise related to the collision between the light-blocking fin and the weight member can be reduced, and the discomfort in operation can be reduced. Further, when the screen is made of a relatively hard material, it is possible to reduce the contact noise when the screen comes into contact with the light shielding fins.

It is a front view showing the schematic structure of the roll screen of a 1st embodiment by the present invention. FIG. 2 is an exploded perspective view illustrating a schematic configuration around a light shielding fin in the roll screen according to the first embodiment of the present invention. It is a side view showing composition of a light shielding fin in a roll screen of a 1st embodiment by the present invention. (A), (b) is a side view explaining operation | movement of the light shielding fin in the roll screen of 1st Embodiment by this invention, respectively. (A), (b) is a side view explaining the structure and operation | movement of the light shielding fin of a comparative example, respectively. (A), (b), (c) is a side view explaining a support member and a side cover related to the light shielding fin in the roll screen of the first embodiment of the present invention, respectively. (A), (b) is a partial rear view and a side view respectively explaining a side cover relating to a light shielding fin in the roll screen of the first embodiment according to the present invention, (c), (d), It is the partial back view and side view explaining the side cover of a comparative example, respectively. It is a front view showing the schematic structure of the roll screen of a 2nd embodiment by the present invention. It is a partial side perspective view showing a schematic configuration of a roll screen of a second embodiment according to the present invention. It is a partial side perspective view showing a schematic configuration of a roll screen of a third embodiment according to the present invention. (A), (b) is a side view which shows another example regarding the shaft support structure of the light shielding fin in the roll screen of each embodiment by this invention, respectively. (A), (b) is a side view which shows the further another example regarding the axial support structure of the light shielding fin in each roll screen of each embodiment by this invention. It is a partial side view showing a part of composition of a roll screen of a 4th embodiment by the present invention. It is a partial side view showing a part of composition of a roll screen of a 5th embodiment by the present invention. It is a partial side perspective view showing a schematic structure of a roll screen of a sixth embodiment according to the present invention. (A), (b) is the front view and perspective view which show the modification of the roll screen of each embodiment by this invention comprehensively and partially. (A), (b) is a side view explaining the presence or absence of the rotation restricting part and the rotation deceleration part regarding the light shielding fin in the roll screen of the first embodiment according to the present invention, respectively. FIG. 4 is a perspective view exemplarily illustrating positions of a rotation restricting portion and a rotation deceleration portion with respect to a light shielding fin in the roll screen according to the first embodiment of the present invention. It is a side view explaining the shading fin of the modification in the roll screen of a 1st embodiment by the present invention. It is a front view showing a part of schematic structure of a roll screen of a 7th embodiment by the present invention. (A), (b), (c) is a figure explaining operation | movement of the light shielding fin in the roll screen of 7th Embodiment by this invention, respectively. (A), (b), (c) is a figure explaining operation | movement of the shading fin of the modification in the roll screen of 7th Embodiment by this invention, respectively. (A), (b), (c) is a partial side perspective view showing a light shielding fin of a further modification in the roll screen of the seventh embodiment according to the present invention.

  Hereinafter, a roll screen according to each embodiment of the present invention will be described with reference to the drawings. In the specification of the present application, with respect to the front view of the roll screen 1 shown in FIG. 1, the upper side and the lower side in the drawing are upward (or upper) and lower (or lower), respectively, according to the hanging direction of the screen 4. ), And 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 front view of the roll screen 1 shown in FIG. 1, the visible side is the front side (or the indoor side), and the opposite side is the rear side (or the outdoor side). The direction perpendicular to the illustrated plane in the front view of FIG.

[First Embodiment]
(overall structure)
First, a configuration of a roll screen 1 according to a first embodiment of the present invention will be described with reference to FIG. FIG. 1 is a front view showing a schematic configuration of a roll screen 1 according to a first embodiment of the present invention.

  In a roll screen 1 shown in FIG. 1, support members 2a and 2b are fixed to both ends of a mounting frame 2, and a cylindrical shape is formed between the support members 2a and 2b by a fixed shaft (not shown) extending from the support members 2a and 2b. Is rotatably supported. The mounting frame 2 is fixed to a mounting surface by a bracket 6. Each of the support members 2a and 2b is housed by the side cover 10 and improves the design and the functionality related to the turning operation of the light-blocking fins 9 as described later.

  An operation pulley 8 is provided at the right end of the winding pipe 3, and an endless operation code 7 wound around the operation pulley 8 is hung. The winding pipe 3 is configured to be rotatable by operating the operation cord 7, and the surface of the operation pulley 8 around which the operation cord 7 is wound has a high friction surface shape. Incidentally, the operation cord 7 may be constituted by a ball chain, and the surface of the operation pulley 8 around which the ball chain is wound may be constituted so as to have irregularities of a shape adapted to the ball portion of the ball chain.

  The take-up pipe 3 has one end of the screen 4 attached thereto and is suspended and supported so as to take up. The other end of the screen 4 is attached to a weight bar 5 functioning as a weight member. Therefore, the screen 4 is stretched based on the weight of the weight bar 5.

  When the operating pipe 7 is operated to rotate the winding pipe 3 in the screen winding direction, the weight bar 5 is raised, and when the winding pipe 3 is rotated in the screen rewinding direction, the weight bar 5 is lowered.

  Further, in the winding pipe 3, a spring motor for reducing the operation force when the screen 4 is wound up is accommodated on the left end side, and a stopper for preventing the screen 4 from falling by its own weight is accommodated on the right end side thereof. Not shown).

  Therefore, in the roll screen 1 according to the present invention, the light-blocking fins 9 are attached to the back side of the mounting frame 2 with a structure that is not likely to be damaged by the collision of the weight bar 5, and the gap between the winding pipe 3 and the mounting frame 2. Thus, the light-shielding fin 9 of one embodiment will be described in detail below.

(Shading fin)
FIG. 2 is an exploded perspective view showing a schematic configuration around a light shielding fin 9 in the roll screen 1 according to the first embodiment of the present invention. Referring to FIG. 2, the light shielding fin 9 has a substantially L-shaped cross section as a whole, and is rotatably supported on the rear side of the mounting frame 2. The width Ls in the left-right direction of the light shielding fin 9 is slightly shorter than the width Lf in the left-right direction of the mounting frame 2. The light-shielding fins 9 have a high light-shielding property. For example, when the light-shielding fins 9 are formed of a synthetic resin, the width Ls in the left-right direction is slightly shorter than the width Lf in the left-right direction of the mounting frame 2 so that, for example, the thermal expansion Even if the width in the left-right direction changes, the rotation is smoothly supported.

  A bearing portion 20 having a substantially C-shaped cross section extending in the longitudinal direction is formed below the rear surface of the mounting frame 2. The shaft portion 91 of the light shielding fin 9 is engaged with the bearing portion 20, whereby the light shielding fin 9 is rotatably supported on the rear side of the mounting frame 2. Support members 2a and 2b are attached to both ends of the mounting frame 2 in the longitudinal direction.

  The supporting members 2a and 2b are provided with notches 23 having a size substantially matching the substantially C-shaped cross-sectional shape of the bearing portion 20 of the mounting frame 2. The notch 23 is provided to allow the shaft portion 91 of the light-shielding fin 9 to be inserted into the bearing portion 20 to be supported after the mounting frame 2 is fixed by the supporting members 2a and 2b, and then the shaft portion 91 is slid from the left and right directions. ing. The light-blocking fins 9 are slid so that they can be removed, and other than this slide cannot be removed, so that the light-blocking fins 9 do not come off the mounting frame 2 due to the collision of the weight bar 5. Regarding the removal of the light-blocking fins 9, the position of the notch 23 in the support member 2 a having the notch 23 on the outdoor side (however, the notch 23 may be provided on the outdoor side of the support member 2 b) is The light-blocking fins 9 can be flipped up and removed at a certain position by sliding the light-blocking fins 9 in the left-right width direction.

  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 pipe 3 are fixed to the support members 2a and 2b. Screw holes 22 are provided at a plurality of locations. Although the side cover 10 is attached from the viewpoint of its design, the side cover 10 also has an effect of improving the functionality related to the turning operation of the light shielding fin 9.

  That is, although the details will be described later, the side cover 10 is provided with a height that regulates the right and left ends of the light shielding fin 9 in the rotation range of the light shielding fin 9 so that the light shielding fin 9 can be smoothly rotated. A wall portion 10a is formed. The height of the wall 10a is sufficient to accommodate the thickness of the support members 2a and 2b. The side cover 10 is formed of a synthetic resin, and can be attached with a narrow pressure following the outer shape of the supporting members 2a and 2b formed of a metal material. The supporting members 2a and 2b are attached to the wall 10a. Is formed to protrude inward so as to be able to grasp the same. That is, the wall portion 10a has a height so that the claw portion 10b and the notch 23 do not hinder the turning operation of the light shielding fin 9. Although details will be described later with reference to FIG. 7, the light shielding fin 9 contacts the wall portion 10a of the side cover 10 before contacting the support members 2a and 2b, thereby restricting the light shielding fin 9 to be rotatable. With such a structure, that is, by restricting the left and right ends of the light-shielding fin 9, its design is ensured, and the rotation harmful effect can be prevented while enhancing the light leakage effect. In this example, the width Ls in the left-right direction of the light-shielding fins 9 is configured to be slightly shorter than the width Lf in the left-right direction of the mounting frame 2, and the light-shielding fins 9 are rotatably regulated by the wall 10a of the side cover 10. Although a configuration example is shown, the support members 2 a and 2 b and the side cover 10 may be avoided depending on the shape of the light shielding fin 9.

  FIG. 3 is a side view showing the configuration of the light shielding fins 9 in the roll screen according to the first embodiment of the present invention. In FIG. 3, the side cross-sectional shape of the mounting frame 2 is also shown by a broken line in order to enhance understanding of the invention. A bearing portion 20 having a substantially C-shaped cross section extending in the longitudinal direction is formed below the rear surface of the mounting frame 2. More specifically, the bearing portion 20 has a bent shaft 20f formed at the tip of a rotation restricting piece 20a extending upward from the bottom of the mounting frame 2 so that the shaft portion 91 of the light-blocking fin 9 can be supported. The rotation restricting piece 20a has a function of restricting downward rotation of the light shielding fin 9. Above the bearing portion 20 on the back surface of the mounting frame 2, a rotation restricting piece 20b for restricting the upward rotation of the light shielding fin 9 is formed. In the illustrated example, the rotation restricting piece 20a is formed in a substantially C shape protruding rearward from the rear surface of the main body of the mounting frame 2, and the rotation restricting piece 20b is formed in a substantially plate shape protruding rearward. When the shaft portion 91 of the light-blocking fin 9 is supported by the bearing portion 20, the rotation of the light-blocking fin 9 in the vertical direction is restricted, and the light-blocking fin 9 is moved in the rear direction regardless of how the light-blocking fin 9 is turned. It does not come off from the bearing portion 20.

  The light shielding fin 9 has a substantially L-shaped cross section as a whole, and is formed of a single member having a double curved surface so as to reduce a collision force caused by interference with the weight bar 5. The light shielding fin 9 mainly includes a shaft portion 91, a shielding portion 93, a fabric contact portion 94, and an interference reducing portion 95.

  The shaft portion 91 is a portion that is supported by the bearing portion 20. The shielding portion 93 is a portion for preventing light leakage generated from a gap between the mounting frame 2 and the winding pipe 3. The fabric contact portion 94 is a portion that is brought into contact with or close to the screen 4 that is wound or unwound by the winding pipe 3. The interference mitigation part 95 is a part for alleviating interference when the weight bar 5 rises by the winding of the screen 4 and collides.

  The light-blocking fins 9 are weight-balanced so as to increase the proximity between the cloth contact portion 94 and the screen 4 in order to prevent light leakage when the screen 4 is fully closed.

  The shaft portion 91 of the light-blocking fin 9 is supported by the bearing portion 20 and has a substantially C-shaped cross section as a whole. The tip of the shaft portion 91 is formed in a substantially T-shaped cross-section, and is engaged with the bearing portion 20 with a sufficient space, so that the light-shielding fins 9 are less likely to come off from the bearing portion 20 and are shielded from light. The rotational freedom of the fin 9 is increased. On the other hand, when the shaft portion 91 of the light-blocking fin 9 is pivotally supported on the bearing portion 20 in such a manner that the degree of freedom of rotation is increased in this manner, unpleasant interference sound (due to the rotation interference of the light-blocking fin 9 and the rotation restricting piece 20b). Therefore, it is preferable to change the thickness of the shaft portion 91 to form a curved portion 92 having a large thickness in the rotation range, as shown in FIG. is there. As described above, the shaft portion 91 of the light-blocking fin 9 can reduce the rattling sound at the time of rotation while maintaining a sufficient space for reducing the rotation load.

  The fabric contact portion 94 is a portion that comes into contact with or comes close to the screen 4 that is wound or unwound by the winding pipe 3. When the screen 4 is wound around the winding pipe 3 as shown in FIG. The light-blocking fins 9 can be rotated in accordance with the thickening of the roll 4. The cloth contacting portion 94 has a rounded cross-sectional shape, which makes the rotation of the light shielding fin 9 smooth. However, as shown in FIG. 4B, when the weight bar 5 comes into contact with the light-blocking fin 9 due to the lifting of the weight bar 5, the weight bar 5 does not come into contact with the screen 4.

  The shielding portion 93 is a portion between the shaft portion 91 and the cloth contact portion 94 and has a length that prevents light leakage generated from a gap between the mounting frame 2 and the winding pipe 3. Further, the shielding portion 93 is formed in a curved cross-sectional shape so as to be substantially upwardly convex. By forming the shielding portion 93 in this way, the height associated with the rotation of the light-blocking fins 9 required when the weight bar 5 is located at the highest position can be further reduced (see FIG. 4B). The distance d2) can prevent damage caused by the jumping of the light-blocking fins 9, and can further reduce the required distance on the rear side of the mounting frame 2 required for the light-blocking fins 9 to jump (see FIG. 4B). Distance d1). The uppermost position of the weight bar 5 shown in this example is a position where the weight bar 5 comes into contact with the mounting frame 2.

  For example, when the shielding portion 93 is formed to have a curved cross-sectional shape so as to be substantially convex downward as in the light shielding fin 109 of Comparative Example 1 shown in FIG. 5A, the weight bar 5 is positioned at the highest position. The height required for the rotation of the light-blocking fins 109 at this time increases (distance d2 ′ shown in FIG. 5A), and the tip of the light-blocking fins 109 rises due to the jumping of the light-blocking fins 109. There is a risk of collision and damage. Further, when the shielding portion 93 is formed in a substantially linear cross-sectional shape like the light shielding fin 209 of Comparative Example 2 shown in FIG. 5B, the rear side of the mounting frame 2 required for the light shielding fin 209 to jump up is required. The distance is longer than in the case of the light-blocking fins 9 according to the present invention, and the installation efficiency is deteriorated (distance d1 'shown in FIG. 5B).

  In addition, as shown in FIGS. 3 and 4, it is preferable that the shielding portion 93 be provided with an upper projection 97 near the shaft portion 91 for restricting the upward rotation of the light shielding fin 9. The upper protrusion 97 is formed so as to be in contact with the rotation restricting piece 20 b of the mounting frame 2, whereby the upward rotation of the light shielding fin 9 can be restricted. Further, it is preferable that the shielding portion 93 be provided with a lower projection 98 near the shaft portion 91 for restricting the downward rotation of the light shielding fin 9. The lower projection 98 need not be provided, but is effective when the contact pressure with the screen 4 is reduced (or not contacted) and the damage to the screen 4 due to friction when the screen 4 is moved up and down is effective. . When the shaft portion 91 of the light-blocking fin 9 is supported by the bearing portion 20, the upper and lower protrusions 97 and 98 also restrict the vertical rotation of the light-blocking fin 9. No matter how the fin 9 is rotated, it does not come off the bearing 20 in the rear direction.

  The interference mitigation part 95 is formed in a wavy curved surface shape (curved cross-sectional shape) so as to reduce interference when the weight bar 5 rises by the winding of the screen 4 and collides. In particular, as shown in FIG. 4A, it is preferable that the distal end portion 96 of the interference reducing portion 95 has a curved surface shape that escapes upward to prevent the weight bar 5 from being inserted into the opening portion 51.

  As shown in FIG. 4, the light-blocking fins 9 configured as described above have a structure that is not likely to be damaged by the collision of the weight bar 5, and the light-blocking fins 9 are provided with a gap between the winding pipe 3 and the mounting frame 2. Light leakage can be effectively blocked. In addition, as described above, the structure that reduces the contact sound related to the collision between the light-blocking fins 9 and the weight bar 5 can reduce operational discomfort.

  In addition, the design of the side cover 10 and the functionality related to the turning operation of the light shielding fin 9 are improved by the side cover 10. As shown in FIG. 6A, a screw hole 21 for fixing the mounting frame 2 using a mounting screw and a fixing for rotatably supporting the winding pipe 3 are provided in the support member 2b (2a). Screw holes 22 for fixing a shaft (not shown) are provided at a plurality of locations. In a state where the light-blocking fins 9 are pivotally supported by the bearing portions 20 of the mounting frame 2, as shown in FIG. 6B, the notch 23 is also visible, and the design is poor. For this reason, as shown in FIG. 6C, by attaching the side cover 10 to the support member 2b (2a), its design can be improved.

  As shown in the partial rear view and the side view of the side cover 10 according to the present invention in FIGS. 7A and 7B, the side cover 10 A wall portion 10a having a height (hatched portion shown in the figure) is formed so as to regulate both end positions in the left-right direction. And the claw part 10b which protrudes inward and which can hold | grip the support members 2a and 2b is formed in the wall part 10a.

  On the other hand, in the case where the wall portion 10a is not formed and the short cover side wall is used, as shown in the partial rear view and the side view of the side cover 100 of the comparative example of FIGS. 7C and 7D, As the light-blocking fin 9 rotates, the light-blocking fin 9 rides on the claw portion 10b or the notch 23, and the light-blocking fin 9 cannot be completely closed, which may cause a light blocking defect. For this reason, in the present invention, the width Ls in the left-right direction of the light shielding fin 9 is configured to be slightly shorter than the width Lf in the left-right direction of the mounting frame 2 (see FIG. 2), and the claw portion 10b and the notch 23 are rotated. The wall portion 10a has a height so as not to hinder the movement, and the left and right ends of the light-blocking fins 9 are slid by the wall portion 10a of the side cover 10, so that the light leakage effect is enhanced and the rotation is adversely affected. Can be prevented.

[Second embodiment]
Next, the configuration of the roll screen 1a according to the second embodiment of the present invention will be described with reference to FIGS. FIG. 8 is a front view showing a schematic configuration of the roll screen 1a according to the second embodiment of the present invention. FIG. 9 is a partial side perspective view showing a schematic configuration of a roll screen 1a according to a second embodiment of the present invention. The same components as those in the first embodiment are denoted by the same reference numerals.

  The roll screen 1a shown in FIG. 8 is configured to open and close the screen 4 by a pull grip 12 provided on a weight bar 5a instead of providing the operation cord 7 and the operation pulley 8 as compared with the first embodiment. This is an example, and further description of the same components as those in the first embodiment will be omitted.

  The take-up pipe 3 has one end of the screen 4 attached thereto and is suspended and supported so as to take up. The other end of the screen 4 is attached to a weight bar 5a with a pull support that functions as a weight member. Therefore, the screen 4 is stretched based on the weight of the weight bar 5a.

  Further, a winding mechanism (for example, a spring motor) for automatically winding the screen 4 and a stopper device for preventing the screen 4 from falling under its own weight are accommodated in the winding pipe 3 (not shown). Therefore, when the stopper device is not operating, the winding pipe 3 is operated by the winding mechanism to rotate in the screen winding direction.

  A pull grip 12 that can be pulled downward is attached to the lower end of the approximate center of the weight bar 5a. As shown in FIG. 9, the pull grip 12 is suspended from a part of the weight bar 5a via a pull cord 12a.

  That is, by pulling the pull grip 12 downward, the take-up pipe 3 rotates in the screen rewind direction and the weight bar 5a descends. When the pull grip 12 is released at an arbitrary position, the screen 4 is pulled out by the stopper device. Stop in state. When the pull grip 12 is slightly pulled downward from this state and released, the lock by the stopper device is released, and the winding pipe 3 rotates in the screen winding direction, and the weight bar 5a rises. In this way, by winding or rewinding the screen by the winding pipe 3, the amount of light collected into the room can be adjusted.

  As described above, the light-shielding fins 9 described in the first embodiment can be commonly used for the roll screen 1a using the pull grip 12, and the same operation and effect as in the first embodiment can be obtained. it can. Then, the roll screen 1a of the second embodiment configured to open and close the screen 4 by the roll screen 1 of the first embodiment provided with the operation code 7 and the operation pulley 8 and the pull grip 12 provided on the weight bar 5a. Thus, since the light shielding fins 9 can be shared, the cost of parts can be reduced.

[Third embodiment]
Next, a configuration of a roll screen 1b according to a third embodiment of the present invention will be described with reference to FIG. FIG. 10 is a partial side perspective view showing a schematic configuration of the roll screen 1b according to the third embodiment of the present invention. The same components as those in the first and second embodiments are denoted by the same reference numerals.

  As a modified example of the second embodiment, the roll screen 1b shown in FIG. 10 has a shape of a bearing portion 20 provided below the back surface of the mounting frame 2 and a shaft portion 91 of the light shielding fin 9a engaged with the bearing portion 20. Is an example in which the shape is inverted up and down as compared with the shape shown in FIG. 9, and further description of the same components as those in the first and second embodiments will be omitted. The bearing portion 20 of the present embodiment has a bent shaft 20f formed at the tip of a rotation restricting piece 20b which is bent downward from one side of the mounting frame 2 and is formed by the bent shaft 20f. 91 can be pivoted. The rotation restricting piece 20a shown in FIG. 10 is formed so as to extend upward from the bottom of the frame 2, and has a function of restricting the downward rotation of the light shielding fin 9a and receiving a contact with the weight bar 5. Have. Also in this case, the light-blocking fins 9 are attached to the rear side of the mounting frame 2 with a structure that is not likely to be damaged by the collision of the weight bar 5a, and a gap generated between the winding pipe 3 and the mounting frame 2 is formed. From light leakage can be effectively blocked.

  Therefore, as a modified example of the first embodiment in which the operation cord 7 and the operation pulley 8 are provided, the shape of the bearing portion 20 provided below the rear surface of the mounting frame 2 and the light shielding fins 9a engaged with the bearing portion 20 are provided. The shape of the shaft portion 91 can be configured to be inverted upside down as compared with the shape shown in FIG.

  It should be noted that the light-blocking fins 9 (or 9a) may be mounted on the rear side of the mounting frame 2 to be pivotally supported in various forms. For example, the bearing portion 20 of the mounting frame 2 is configured as shown by a broken line in FIG. 11 (a), and the shaft portion 91 of the light shielding fin 9 having the same structure as that shown in FIG. Can be done. More specifically, the bearing portion 20 has a round shaft 20e formed at the tip of a rotation restricting piece 20a extending upward from the bottom of the mounting frame 2, and the shaft portion 91 of the light shielding fin 9 is formed by the round shaft 20e. Can be pivoted.

  Alternatively, the bearing portion 20 of the mounting frame 2 is configured so that the side cross-sectional shape is shown by a broken line in FIG. 11B, and the shaft portion 91 of the light shielding fin 9a having the same structure as that shown in FIG. Can be supported. More specifically, the bearing portion 20 has a bent shaft 20f formed at the tip of a rotation restricting piece 20b that extends downward from one side of the mounting frame 2 and the light-shielding fin 9 is formed by the bent shaft 20f. Can be axially supported. In the example shown in FIG. 11B, the rotation restricting piece 20a is not formed as compared with the example shown in FIG. In this case, the light-shielding fins 9a are brought into contact with the weight bar 5. However, since the light-shielding fins 9a are brought into contact with the weight bar 5 near the shaft portion 91, the light-shielding fins 9a due to the collision of the weight bar 5 are received. No damage will occur. Further, since the rotation restricting piece 20a is not formed, the required distance on the back side of the light-blocking fin 9a on the back surface of the main body of the mounting frame 2 can be shorter than in the example shown in FIG.

  Alternatively, the bearing portion 20 of the mounting frame 2 is configured as shown in FIG. 12 (a) by a broken line, and the shaft portion 91 of the light shielding fin 9 having the same structure as that shown in FIG. Can be supported. More specifically, the bearing portion 20 has a bent shaft 20f formed at the tip of a rotation restricting piece 20a extending upward from the bottom of the mounting frame 2, and the bent shaft 20f forms the shaft portion 91 of the light shielding fin 9. Can be pivoted. Note that a round shaft 20e shown in FIG. 11A may be used instead of the bending shaft 20f. Above the bearing portion 20 on the back surface of the mounting frame 2, a rotation restricting piece 20b that restricts upward rotation of the light shielding fin 9 and suppresses rattling accompanying rotation of the light shielding fin 9 is substantially C. It is formed in a U-shaped cross section. Therefore, as shown in the figure, the bearing portion 20 is formed by opening the back side of the mounting frame 2, and the shaft portion 91 of the light shielding fin 9 having the same structure as that shown in FIG. 3 can be supported.

  Alternatively, the bearing portion 20 of the mounting frame 2 is configured as shown by a broken line in FIG. 12B, and the shaft portion 91 of the light shielding fin 9 having the same structure as that shown in FIG. Can be supported. More specifically, the bearing portion 20 opens the bottom of the mounting frame 2 and forms a bent shaft 20f at the tip of a protruding piece that extends upward from the indoor bottom of the mounting frame 2. The shaft portion 91 of the light-blocking fin 9 can be pivotally supported. Note that a round shaft 20e shown in FIG. 11A may be used instead of the bending shaft 20f. Above the bearing portion 20, a rotation restricting piece 20b extending upward from the outdoor bottom of the mounting frame 2 to restrict the rotation range of the light-shielding fin 9 and to suppress rattling due to this rotation is substantially C. It is formed in a U-shaped cross section. Therefore, as shown in the figure, the bearing portion 20 is formed by opening the bottom surface side of the mounting frame 2, and the shaft portion 91 of the light shielding fin 9 having the same structure as that shown in FIG. 3 can be supported. In this example, when the light-shielding fin 9 rotates from the state shown by the broken line to the state shown by the solid line, the light-shielding fin 9 comes into contact with the weight bar 5. Abuts on the surface of the bottom surface of the mounting frame 2 in a relatively wide area and receives contact with the weight bar 5, so that the light-shielding fin 9a is not damaged by the collision of the weight bar 5. In addition, as compared with a configuration in which the light-blocking fins 9 (or 9a) are pivotally supported on the rear surface of the main body of the mounting frame 2 as shown in FIG. The required distance can be made shorter.

[Fourth embodiment]
Next, a configuration of a roll screen 1c according to a fourth embodiment of the present invention will be described with reference to FIG. FIG. 13 is a partial side perspective view showing a schematic configuration of a roll screen 1c according to a fourth embodiment of the present invention. Note that the same components as those in the above-described embodiments are denoted by the same reference numerals.

  The roll screen 1c shown in FIG. 13 is configured such that a bearing portion 20 is formed on the front side of the mounting frame 2 and the shaft portion 91 of the light shielding fin 9b is supported at the indoor bottom of the mounting frame 2. The light-shielding fin 9b mainly includes a shaft portion 91, a shielding portion 93, a cloth contact portion 94, and an interference alleviation portion 95, similarly to the above-described light-shielding fin 9 (or 9a), and has substantially the same structure and function. The light-blocking fins 9b are formed in the shape of a curved surface as a whole. As shown in FIG. 13, the distal end portion 96 of the interference alleviation portion 95 has a curved shape that escapes upward to prevent the weight bar 5 from being inserted into the opening portion 51. However, the light-shielding fin 9b is in contact with the screen 4 that is wound or unwound by the winding pipe 3 even in the shielding portion 93, as compared with the light-shielding fin 9 shown in FIG. 4 or the light-shielding fin 9a shown in FIG. This is particularly different in that the shielding portion 93 is formed in a flat shape so as to allow the above.

  The bearing portion 20 of the present example has a bent shaft 20f formed at a tip bent downward from the front side of the mounting frame 2 and extends downward. The bent shaft 20f supports the shaft portion 91 of the light shielding fin 9b. Can be. In this example, when the light-blocking fin 9b rotates from the state shown by the broken line to the state shown by the solid line, the light-blocking fin 9b receives the contact with the weight bar 5, but the light-blocking fin 9b The cloth contact portion 94 abuts against the bottom end of the mounting frame 2, and the light shielding fin 9 b is in contact with the weight bar 5 near the cloth contact portion 94, so that the light shielding fin 9 b is not damaged by the collision of the weight bar 5. Does not occur. Further, in this example, as is apparent from FIG. 13, compared with the example of the light shielding fin 9 (or 9a) shown in FIGS. The distance can be shorter.

[Fifth Embodiment]
Next, the configuration of a roll screen 1d according to a fifth embodiment of the present invention will be described with reference to FIG. FIG. 14 is a partial side perspective view showing a schematic configuration of a roll screen 1d according to a fifth embodiment of the present invention. Note that the same components as those in the above-described embodiments are denoted by the same reference numerals.

  The roll screen 1d shown in FIG. 14 has a cylindrical bearing portion 20 formed at the bottom of the mounting frame 2, and covers the round shaft portion 91 of the light-blocking fin 9c at the indoor bottom of the mounting frame 2, and also has a light-blocking fin. A round shaft-shaped shaft portion 91 is projected from both left and right ends of 9c, and is supported by the shaft support portion 24 provided on the support members 2a and 2b. The light-shielding fin 9c mainly includes a shaft portion 91, a shielding portion 93, a cloth contact portion 94, and an interference alleviation portion 95, similarly to the above-described light-shielding fin 9 (or 9a), and has substantially the same structure and function. The light-blocking fins 9b are formed in the shape of a curved surface as a whole. As shown in FIG. 13, the distal end portion 96 of the interference alleviation portion 95 has a curved shape that escapes upward to prevent the weight bar 5 from being inserted into the opening portion 51. However, the light-shielding fins 9c are different from the light-shielding fins 9 shown in FIG. 4 and the light-shielding fins 9a shown in FIG. This is particularly different in that the shielding portion 93 is formed in a flat shape so as to allow contact with the winding or rewinding screen 4.

  The bearing portion 20 of the present example is formed in a tubular shape so as to cover the round shaft portion 91 of the light shielding fin 9c, and the left and right ends of the round shaft portion 91 of the light shielding fin 9c are round shaft shapes. The shaft portion 91 protrudes so as to be supported by the shaft support portions 24 provided on the support members 2a and 2b (not shown). Thereby, the light shielding fin 9c can be rotatably supported by the support members 2a and 2b. In this example, when the light-blocking fin 9c rotates from the state shown by the broken line to the state shown by the solid line, the light-blocking fin 9c receives the contact with the weight bar 5 in particular. Since the shielding portion 93 abuts on a relatively wide area of the bottom surface of the mounting frame 2 and receives the abutment with the weight bar 5, the light shielding fin 9c is not damaged by the collision of the weight bar 5. Further, in this example, as is apparent from FIG. 14, compared with the example of the light shielding fin 9 (or 9a) shown in FIG. 4 or FIG. The distance can be shorter.

  As described above, in the roll screens of the first to fifth embodiments, the light-blocking fins 9 (or 9a to 9c) are provided on the rear side of the mounting frame 2 with a structure that is not likely to be damaged by the collision of the weight bar 5 (or 5a). Alternatively, light leakage from a gap generated between the winding pipe 3 and the mounting frame 2 attached to the bottom surface side can be effectively shielded.

[Sixth embodiment]
Next, a configuration of a roll screen 1e according to a sixth embodiment of the present invention will be described with reference to FIG. FIG. 15 is a partial side perspective view showing a schematic configuration of a roll screen 1e according to the sixth embodiment of the present invention. The same components as those in the first to fifth embodiments are denoted by the same reference numerals.

  The roll screen 1e according to the sixth embodiment is different from those described in the first to fifth embodiments in that the shape of the bearing 20 provided below the rear surface of the mounting frame 2 and the light shielding that engages with the bearing 20 Although the structure of the fin 9d is different, other components are the same, and further description is omitted.

  In the roll screen 1e of the sixth embodiment, the shape of the bearing portion 20 provided below the rear surface of the mounting frame 2 is such that the rotation restricting piece 20a that restricts the downward rotation of the light shielding fin 9d, It is configured to have a rotation restricting piece 20b for restricting upward rotation and a concave portion 20c having a substantially semicircular concave.

  The light-blocking fins 9d have a connection-type multi-member structure that can be bent so as to reduce a collision force due to interference with the weight bar 5, and mainly include a shaft portion 91a, a shielding portion 93a, a cloth contact portion 94a, and an interference member. It is composed of a relief section 95a. The light-blocking fin 9b has a two-member connection type structure that allows a member forming the shaft portion 91a and the shielding portion 93a and a member forming the interference reducing portion 95a to be bent at the position of the cloth contact portion 94a.

  The shaft portion 91a is a portion that is supported by the bearing portion 20. The shielding portion 93a is a portion that prevents light leakage generated from a gap between the mounting frame 2 and the winding pipe 3. The cloth contact portion 94a is a connecting portion that can be bent and is a portion that comes into contact with or comes close to the screen 4 that is wound or unwound by the winding pipe 3. The interference mitigation part 95a is a part for alleviating interference when the weight bar 5 rises by the winding of the screen 4 and collides.

  The light-blocking fins 9d are weight-balanced so as to increase the amount of proximity between the cloth contact portion 94a and the screen 4 in order to prevent light leakage when the screen 4 is fully closed.

  The shaft portion 91a of the light-blocking fin 9d is supported by the bearing portion 20 and has a substantially circular cross-sectional shape as a whole. The shaft portion 91a is engaged with the bearing portion 20 in a manner that does not cause rattling, thereby preventing the light shielding fin 9d from coming off the bearing portion 20 and increasing the degree of freedom of rotation of the light shielding fin 9d. By engaging in such a manner that rattling does not occur, unpleasant interference sound (contact sound) due to rotational interference between the shielding portion 93a of the light shielding fin 9d and the rotation restricting piece 20b is prevented.

  The cloth contact portion 94a connects the member forming the shaft portion 91a and the shielding portion 93a and the member forming the interference reducing portion 95a in a bendable manner, and contacts the screen 4 which is wound or unwound by the winding pipe 3. This is a portion to be brought into contact with or close to, and the light shielding fin 9d can be rotated in accordance with the thickening of the screen 4. The cloth contact portion 94a can relatively rotate the end of the member forming the shaft portion 91a and the shielding portion 93a having a substantially C-shaped cross section and the end of the member forming the interference reducing portion 95a having a substantially circular cross section. It is connected to. This makes the rotation of the light shielding fin 9d smooth. The form of connection by the cloth contacting portion 94a is arbitrary as long as the member forming the shaft portion 91a and the shielding portion 93a and the member forming the interference reducing portion 95a can relatively rotate. You may connect with a tape etc. In the example of the present embodiment, as described above, the two members are configured to be bendable, but may be three or more members.

  The shielding part 93a is a part between the shaft part 91a and the cloth contact part 94a, and has a length that prevents light leakage generated from a gap between the mounting frame 2 and the winding pipe 3. Further, the shielding portion 93a is formed in a curved cross-sectional shape so as to be substantially upwardly bent at the curved portion 92a. By forming the shielding portion 93a in this manner, the height associated with the rotation of the light-blocking fins 9d required when the weight bar 5 is located at the highest position is further reduced, and the height of the light-blocking fins 9d is increased. This is the same as the first embodiment in that damage caused by the light-shielding fins 9d can be prevented and the required distance on the back side of the mounting frame 2 required for the light-shielding fins 9b to jump up can be further reduced.

  Further, since the shielding portion 93a has a shape bent at the curved portion 92a, as shown in FIG. 15, the rotation restricting piece of the mounting frame 2 is provided in a region between the curved portion 92a and the shaft portion 91a. 20b, so that the upward rotation of the light shielding fin 9b can be restricted. When the shaft portion 91a of the light-blocking fin 9d is supported by the bearing 20, the light-blocking fin 9d is not detached from the bearing 20 no matter how it is rotated. The method of attaching the shaft portion 91a of the light-blocking fin 9d to the bearing portion 20 of the attachment frame 2 is the same as in the first embodiment.

  The interference reducing portion 95a is bent at the position of the cloth contact portion 94a, and reduces the interference when the weight bar 5 rises and collides with the winding of the screen 4. In particular, as shown in FIG. 15, the distal end portion 96a of the interference reducing portion 95a preferably has a rounded curved surface shape to prevent the weight bar 5 from being inserted into the opening portion 51.

  The light-blocking fins 9d thus configured have a structure that is not likely to be damaged by the collision of the weight bar 5, and effectively shield light leakage from a gap generated between the winding pipe 3 and the mounting frame 2. can do. In addition, as described above, the structure that reduces the contact sound related to the collision between the light-blocking fins 9d and the weight bar 5 can reduce operational discomfort.

  The light-shielding fin 9d shown in FIG. 15 can be applied to a roll screen using the pull grip 12 as described in the second embodiment.

  As described above, the present invention has been described with reference to the example of the specific embodiment. However, the present invention is not limited to the example of the above-described embodiment, and can be variously modified without departing from the technical idea thereof. For example, in each embodiment, the example in which the light shielding fin according to the present invention is mainly applied to the roll screen in which the screen 4 hangs from the outdoor side of the winding pipe 3 has been described. The screen 4 can also be configured to be used as a common member for a roll screen that hangs from the indoor side of the winding pipe 3.

  In addition, in the roll screen of each embodiment, there is an example in which the shape of the shank of the light-blocking fin is differently described, but there is a case where one of the shapes of the shaft of the light-blocking fin in each embodiment is used. do it.

  Also, in any of the second to sixth embodiments, it is preferable to provide the side cover as in the first embodiment. Therefore, the width of the light shielding fin in the left-right direction is larger than the width of the mounting frame in the left-right direction. It is also preferable that the side cover has a slightly shorter length, and that the wall of the side cover has a height so that the notch of the side cover and the notch of the support member do not hinder the rotation operation.

  As described above, in the roll screen of each embodiment, the bearing portion 20 can be provided below the back surface of the mounting frame 2 or on the bottom surface side to support the shaft portion 91 of the light shielding fin.

  Further, as a modified example of the roll screen of each embodiment, as shown in FIG. 16A, a mounting frame is used by supporting a winding pipe 3 capable of winding a screen 4 by supporting members 2 a and 2 b. Instead, a roll screen 1f configured to fix the support members 2a and 2b to the ceiling surface can be provided. In this case, the light-blocking fins in each embodiment such as the above-described light-blocking fins 9 can be provided so as to be supported by the support members 2a and 2b. For example, FIG. 16B shows a configuration example in which the light shielding fin 9 of the first embodiment is supported by the support members 2a and 2b. The support members 2a and 2b are formed of plate-like members that are bent into substantially rectangular shapes so as to be fixed to the ceiling surface, and each have a shaft support portion 24 having a round hole shape. The cylindrical shaft 25 is supported by the round hole-shaped shaft support portions 24 of the support members 2a and 2b. By supporting the shaft portion 91 of the light-blocking fin 9 on the cylindrical shaft 25, the operation and effect of the light-blocking fin 9 of the first embodiment described above can be exhibited.

  In addition, in the roll screen 1f, various modifications are conceivable for the mode in which the light shielding fins 9 are pivotally supported. For example, cylindrical shafts projecting at a predetermined length may be fixed to each of the support members 2a and 2b, and the light-shielding fins 9 may be supported on these cylindrical shafts, or the light-shielding fins 9c formed of the round shaft-shaped shaft portions 91 may be provided. The shaft portion 91 having a round shaft shape may be protruded from both left and right ends and supported by the shaft support portions 24 provided on the support members 2a and 2b. FIG. 16A shows an example in which the operation code 7 allows the screen 4 to be moved up and down as in the first embodiment. However, as in the second embodiment, the screen 4 is moved up and down by the pull grip 12. It can be configured to allow operation. And also in the embodiment shown in FIG. 16, it is preferable to provide a side cover as in the first embodiment.

  Preferably, the light-shielding fin in each embodiment is placed above the winding pipe 3 in a state where the screen 4 is hung from the winding pipe 3 to the lower limit position (for example, the connection between the mounting frame 2 and the winding pipe 3). By covering all the gaps between them and between the ceiling surface and the winding pipe 3), the light shielding property can be enhanced.

  Also, preferably, the light-blocking fins in each embodiment are configured so as to be in non-contact with the winding pipe 3 and / or the screen 4 in a state where the screen 4 is suspended from the winding pipe 3 to the lower limit position. In the state where the light-shielding property is enhanced, it is possible to prevent damages caused by contact with the winding pipe 3 and the screen 4.

  Further, preferably, the light shielding fin in each embodiment is configured so as to be in non-contact with the winding pipe 3 and / or the screen 4 in a state where the screen 4 is at the upper limit position, so that the light shielding property is enhanced. This can prevent damages caused by contact with the winding pipe 3 and the screen 4.

  Preferably, as described as an example of the above-described embodiment, the shaft portion 91 (or 91a) of the light-blocking fin is pivotally supported near the front edge or the rear edge of the mounting frame 2. In this way, it is possible to prevent damage such as would be caused by contact with the winding pipe 3 or the screen 4 in a state in which the light shielding property is enhanced, and to minimize the required distance due to the rotation of the light shielding fin, that is, the required installation area. Can be reduced.

  Further, preferably, as described as an example of the above-described embodiment, a piece that is supported by the mounting frame 2 while restricting the rotation of the shaft portion 91 (or 91a) of the light-shielding fin (in the example of the above-described embodiment, Rotation restricting pieces 20a and 20b extending from below or above the mounting frame 2 and may be formed with a round shaft 20e or a bent shaft 20f at the end. Rattle and sound can be reduced. As shown in FIG. 16, even when the light-shielding fins are supported by the support members 2a and 2b without using the mounting frame 2, the support members 2a and 2b may be provided with the shaft portions 91 (or 91a) of the light-shielding fins. The projecting piece for guiding rotation can be formed to project by a predetermined length.

  Further, preferably, as described as an example of the above-described embodiment, the winding of the screen 4 by the winding pipe 3 is stopped by the contact of the weight bar 5 with the mounting frame 2, so that the weight is reduced. Bouncing of the light shielding fins due to contact with the bar 5 can be reduced.

(Rotation reduction unit and rotation restriction unit)
Next, a configuration of a roll screen for supporting the light-shielding fins 9 on the mounting frame 2 so that the light-shielding fins 9 are not in contact with the screen 4 even at the maximum winding diameter, and the light-shielding fins 9 are connected to the weight bar 5 of the screen 4. The configuration of the roll screen that supports the light-blocking fins 9 on the mounting frame 2 so as to rotate gently due to interference with the screen will be described.

  For example, the screen 4 may be formed of a sudare formed by knitting a relatively hard and long tubular material such as a bamboo tube. Since such a droop has irregularities, if the light-blocking fin 9 is supported by the mounting frame 2 so as to always contact the light-blocking fin 9 and block light, the wind-shielding fin 9 and the screen 4 formed by the droop will be The contact sound due to the rubbing of the fins and the contact sound with the mounting frame 2 due to the rattling of the light shielding fins 9 are generated relatively loudly, which may cause discomfort to the operator.

  Therefore, in order to further reduce the contact noise, it is preferable to provide a rotation restricting portion 80 that can restrict the rotation of the light shielding fin 9, and instead or in addition to this, It is preferable to provide a rotation reduction section 81 for reducing the speed at the time of rotation. Hereinafter, with reference to FIGS. 17 and 18, the rotation restricting unit 80 and the rotation deceleration unit 81 will be described in order. FIG. 17A is a side view of the light-shielding fin 9 in the roll screen according to the first embodiment of the present invention when the rotation restricting portion 80 and the rotation deceleration portion 81 are not provided. (b) is a side view when the rotation restricting portion 80 and the rotation deceleration portion 81 are provided for the light shielding fin 9. FIG. 18 is a diagram illustrating the positions of the rotation restricting unit 80 and the rotation deceleration unit 81.

  In the following description, the rotation restricting portion 80 is mainly configured as a member that can be attached to the mounting frame 2, and further, the rotation reduction portion 81 is configured as a member that can be attached to the shaft portion 91 of the light shielding fin 9. An example of the configuration is given.

(Rotation restricting part)
First, referring again to the operation of the above-described embodiment, in the case of the screen 4 made of a soft cloth in the roll screen of the first embodiment represented by FIG. 17 (a), the cloth contact portion 94 of the light-shielding fin 9 is brought into contact with the peripheral surface of the screen 4 in the fully closed state (illustration A in FIG. 17 (a)). When the shaft portion 91 is supported by the bearing portion 20 of the mounting frame 2, the light shielding property can be improved. In addition, as long as the light leakage can be ignored, the cloth contact portion 94 of the light-shielding fin 9 does not necessarily need to be brought into contact with the peripheral surface of the screen 4, and the light-shielding fin 9 may be configured to be close to the screen 4.

  That is, in the case of the screen 4 made of soft cloth, the lower projection 98 of the light-blocking fin 9 abuts or approaches the rotation restricting piece 20 a of the bearing 20 of the mounting frame 2 at the maximum winding diameter. As shown (illustration B in FIG. 17A), the light shielding fin 9 may be configured. Further, in the case of the screen 4 made of soft cloth, as described above with reference to FIG. 3, the state in which the shaft portion 91 of the light shielding fin 9 has a space margin with respect to the bearing portion 20 of the mounting frame 2. 17A (illustration C in FIG. 17A), the light-blocking fins 9 are hardly disengaged from the bearing portion 20, the degree of freedom of rotation of the light-blocking fins 9 is increased, and the thickness of the shaft portion 91 is changed to change the rotation. A curved portion 92 having a thickness in the moving range is formed. Therefore, an unpleasant interference sound (contact sound) caused by the rotation interference between the light shielding fin 9 and the rotation restricting piece 20b can be reduced to a negligible level.

  On the other hand, when the screen 4 is formed of a sudare formed by knitting a relatively hard and long cylindrical material such as a bamboo tube, the light is blocked regardless of the maximum winding diameter or the fully closed state. If the shaft portion 91 of the light-shielding fin 9 is supported by the bearing portion 20 of the mounting frame 2 so that the fabric contact portion 94 of the fin 9 contacts the peripheral surface of the screen 4, the winding of the screen 4, particularly the screen 4 , The contact noise due to the friction between the light-shielding fins 9 and the screen 4 due to the uneven dripping has a relatively large amount of sound, which causes discomfort to the operator.

  Therefore, as shown in FIG. 17B, in the case where the screen 4 is formed by sludge, a member configuring the rotation restricting portion 80 is attached to the rotation restricting piece 20a of the bearing portion 20 of the mounting frame 2, and Even at the time of the maximum winding diameter of the screen 4 (arrow H shown in FIG. 17B), the cloth contact portion 94 of the light shielding fin 9 does not contact the peripheral surface of the screen 4 (D in FIG. 17B). ), The angle of the light shielding fin 9 is adjusted. The member constituting such a rotation restricting portion 80 may be formed in a sheet shape in an arbitrary shape from a synthetic resin, and may be in a seal shape in which an adhesive is applied to one surface thereof.

  The members constituting the rotation restricting portion 80 may be attached over substantially the entire width of the mounting frame 2 in the left-right direction, but may be scattered at a plurality of locations in the width of the mounting frame 2 in the left-right direction. It should just be stuck. For example, as shown in an exaggerated manner in FIG. 18, members constituting the rotation restricting portion 80 may be attached at a total of three places near the both ends in the left-right direction of the mounting frame 2 and the center. In addition, it is preferable to prepare a plurality of types of members constituting the rotation restricting portion 80 in accordance with the thickness of the cloth of the slenderness, and it is preferable that the members are formed in a seal shape so as to be able to be stuck together. By taking into account that the light leakage at the time of the maximum winding diameter of the screen 4 or the fully closed state of the screen 4 is so small as to be negligible, the material constituting the rotation restricting portion 80 is used to form the cloth contact portion 94 of the light shielding fin 9. The distance between the screen and the peripheral surface of the screen 4 can be adjusted.

  The member constituting the rotation restricting portion 80 may be bonded to the lower protrusion 98 of the light shielding fin 9 instead of being bonded to the rotation restricting piece 20a of the bearing portion 20 of the mounting frame 2. The mounting frame 2 and / or the light-blocking fins 9 to which the rotation restricting portion 80 is applied can be used not only in the case where the screen 4 is formed by slendering but also in the case where the screen 4 is formed of soft cloth.

(Rotation reduction unit)
Next, the rotation reduction section 81 will be described in detail. In a state where the shaft portion 91 of the light shielding fin 9 is engaged with the bearing portion 20 of the mounting frame 2 with a sufficient space (illustration C in FIG. 17A), for example, a bamboo tube or the like is used. In the case where the screen 4 is formed by a splay formed by knitting a hard and long tubular material, the shading fins 9 flap due to the unevenness of the swelling. In some cases, loud contact noise with the second bearing portion 20 may be generated.

  Therefore, as shown in FIG. 17B, in the case where the screen 4 is formed by sludge, a member constituting the rotation reduction unit 81 is affixed to the curved portion 92 of the shaft portion 91 of the light-shielding fin 9 and rotated. The restricting piece 20b is brought into contact. A member constituting such a rotation decelerating portion 81 may be a foamed rubber tape which is formed in a sheet shape with an arbitrary shape using foamed rubber, and has a tape shape coated with an adhesive on one surface thereof. The rotation decelerating portion 81 comes into contact with the rotation restricting piece 20 b of the mounting frame 2, so that the light shielding fin 9 rotates gently even when the light shielding fin 9 rotates due to the contact between the light shielding fin 9 and the weight bar 5. Further, the vibration of the light-shielding fin 9 can be reduced by reducing the vibration of the light-shielding fin 9 when it is rotated. The members constituting the rotation reduction portion 81 may be attached over substantially the entire width of the mounting frame 2 in the left-right direction, but may be attached at a plurality of locations in the left-right width of the mounting frame 2. I just need. For example, as shown in an exaggerated manner in FIG. 18, members constituting the rotation reduction section 81 may be attached at a total of two places near both ends in the left-right direction of the mounting frame 2. Further, the light-blocking fin 9 can be formed by integrally molding the shaft portion 91 (more specifically, the curved portion 92 of the shaft portion 91) and the rotation reduction portion 81 by two-color molding.

  By forming the member constituting the rotation decelerating portion 81 from foamed rubber, the light-shielding fins 9 are less likely to come off from the bearing portion 20 and do not impair the degree of freedom of rotation of the light-shielding fins 9. Unpleasant interference sound (contact sound) due to rotational interference of the restriction piece 20b can be reduced to a negligible level. Therefore, the light-blocking fins 9 to which the rotation decelerating section 81 is applied are not limited to the case where the screen 4 is formed by sludge, but can also be used for the case where the screen 4 is formed of soft cloth.

  In addition, the rotation decelerating portion 81 that produces the above-described operation may be configured by a member such as foamed rubber or foamed rubber tape, or may be configured by a grease damper or an oil damper.

  As described above, by providing the rotation restricting portion 80 and / or the rotation deceleration portion 81, the roll screen can be configured to reduce the contact sound related to the light shielding fins 9.

  It should be noted that the rotation restricting portion 80 is not provided on one or both of the light shielding fin 9 and the mounting frame 2 as a separate member. The protrusion 98 and / or the rotation restricting piece 20a of the mounting frame 2 may be formed. For example, FIG. 19 is a side view illustrating a light shielding fin 9 of a modified example of the roll screen of the first embodiment according to the present invention. The example shown in FIG. 19 is an example in which the lower protrusion 98 of the light-blocking fin 9 has the function of the rotation restricting portion 80 described above, as compared with the configuration shown in FIG. In this example, not only when the lower projection 98 is in the fully closed state of the screen 4 (the state of the broken line shown in FIG. 19), but also when the screen 4 is wound up (the arrow H shown in FIG. 19). The lower projection 98 projects below the light-shielding fin 9 so that the cloth contact portion 94 of the light-shielding fin 9 does not contact the peripheral surface of the screen 4, and the angle of the light-shielding fin 9 is adjusted. The lower protrusion 98 functions as the rotation restricting portion 80.

  In particular, the light-blocking fins 9 are arranged in a vertical direction so as to prevent direct incident light between the mounting frame 2 and the winding pipe 3 at least at an elevation angle of 0 degree or more and do not contact the screen 4 from the lower limit to a predetermined height. By pivotally supporting the movable member (including linear movement and rotation in the vertical direction), the light leakage can be effectively shielded, and the contact noise of the light shielding fin 9 can be reduced.

  Preferably, as described above, by making the light-blocking fins 9 out of contact with the screen 4 even at the maximum winding diameter, the contact noise of the light-blocking fins 9 can be reliably reduced.

  In the configuration shown in FIGS. 17B and 19, the case of the light shielding fin 9 shown in FIG. 3 has been described as an example, but the functions of the rotation restricting unit 80 and the rotation deceleration unit 81 are provided. Such a roll screen can be applied to the case of the above-mentioned light shielding fins 9a, 9b, 9c, 9d.

  Also, in the configuration shown in FIGS. 17B and 19, the fabric contact portion 94 does not contact the peripheral surface of the screen 4, but is raised in a curved shape as shown in FIG. Note that it has a suitable shape. Therefore, the cloth contact portion 94 is configured as a “curved-shaped ridge” that does not necessarily need to contact the peripheral surface of the screen 4.

[Seventh embodiment]
Here, in each of the above-described embodiments and the modifications thereof, the light-blocking fins 9 (or 9a) may be arranged on the front side (indoor side). For example, an example in which the light-blocking fins 9 shown in FIG. 3 are arranged on the indoor side with respect to the roll screen 1 of the first embodiment will be described below as a seventh embodiment. Here, in the roll screen 1 of the seventh embodiment, an operation pulley 8 is provided at one end of the winding pipe 3, and an endless operation cord 7 wound around the operation pulley 8 hangs down. FIG. 20 is a front view partially showing a schematic configuration of the roll screen 1 of the seventh embodiment according to the present invention. FIGS. 21A, 21B, and 21C are diagrams illustrating the operation of the light shielding fins 9 in the roll screen 1 according to the seventh embodiment of the present invention. Note that the same reference numerals are given to the same components as those in the above-described embodiments, and further detailed description of the same components will be omitted.

  That is, in the roll screen 1 of the seventh embodiment shown in FIG. 20, the light shielding fin 9 has a substantially L-shaped cross section as a whole as described with reference to FIG. Are rotatably supported on a bearing portion 20 provided on the front side (indoor side) of the mounting frame 2. Then, as shown in FIG. 21A, when the weight bar 5 is at the lower limit position, the non-operating screen 4 hangs from the rear side (outdoor side) of the winding pipe 3. In particular, in the roll screen 1 of the seventh embodiment, the light shielding fins 9 are provided so as to cover at least a part of the operation pulley 8, thereby improving the design.

  When the light-blocking fins 9 are provided so as to cover at least a part of the operation pulley 8 in this manner, as shown in FIG. 21B, for example, the operation code 7 is changed from the non-operation state shown in FIG. When the screen 4 is wound up by the wind-up pipe 3 by pulling the screen 4 at an angle toward the front side (indoor side), the operation code 7 comes into contact with the cloth contact portion (curved protrusion) 94 of the light shielding fin 9. Even so, the light-blocking fins 9 rotate, so that the pulling operation is not hindered.

  Further, since the cloth contact portion (curved raised portion) 94 of the light-shielding fin 9 has a shape protruded in a curved shape, the frictional resistance of the light-shielding fin 9 is reduced even when the operation cord 7 comes into contact with the light-shielding fin 9. As a result, the load required for the pulling operation is not significantly increased. In addition to the braid, the operation cord 7 includes a ball chain in which a large number of balls are fixed to the string, and a metal chain in which beads are connected.

  Incidentally, in the roll screen 1 of the seventh embodiment, when the screen 4 wound by the winding pipe 3 by the pulling operation reaches a predetermined winding diameter, the operation code 7 does not come into contact with the light shielding fins 9 and the light shielding fins 9 Since the screen 4 is rotated in accordance with the winding, the function of the light shielding fins 9 and the operability thereof are not hindered. For example, the screen 4 at the time of non-operation when the weight bar 5 is at the upper limit position is in a state as shown in FIG.

  As described above, according to the roll screen 1 of the seventh embodiment, the light-shielding fins 9 can improve the design, and can exert the light-shielding function without greatly increasing the load required for the pulling operation.

  Here, the light-shielding fins 9 (or 9a) of the above-described embodiments have been described with the intention of being able to be arranged and used in common both indoors and outdoors. It is also possible to adopt a configuration in which they are arranged. For example, as shown in FIG. 22, which can be compared with FIG. 21, the shape of the light shielding fin 9 shown in FIG. Accordingly, the dimensions in the front-rear direction can be made compact while having the above-described functions and effects, and the installation efficiency can be further improved.

  Further, when configuring the roll screen in which the light-blocking fins 9 (or 9a) of the above-described embodiments are arranged on the indoor side, as shown in FIG. The support members 2a and 2b may be supported. More specifically, even if the cylindrical shaft 25 is supported by the round hole-shaped shaft support portions 24 of the support members 2a and 2b and the shaft portion 91 of the light shielding fin 9 is supported by the cylindrical shaft 25, The operation and effect of the light shielding fin 9 according to the seventh embodiment can be exhibited.

  The light-blocking fins 9 can be configured to be rotatably supported directly or indirectly on the mounting frame 2 and the support members 2a and 2b. For example, as shown in FIG. 23A, as an example of indirect support, the light-shielding fins 9 are supported by the mounting frame 2 while being rotatably supported by the shaft support portions 24 of the support members 2a and 2b. The lower surface of the shaft portion 91 may be supported to prevent bending of the central portion of the light shielding fin 9 (shielding portion 93). More specifically, below the front edge of the mounting frame 2, there is provided a rotation restricting piece 20 a that protrudes in an arc shape along the cylindrical shaft portion 91 above the light shielding fin 9 to support the shaft portion 91 of the light shielding fin 9. The cylindrical shaft 25a may be integrated with the shaft portion 91 of the light-blocking fins 9 and rotatably supported by the round hole-shaped shaft support portions 24 of the support members 2a and 2b.

  Alternatively, as another example of the indirect support, as shown in FIG. 23B, a rotation support portion 60 may be provided on the bracket 6 fixed to the mounting frame 2 to support the light shielding fin 9 rotatably. . More specifically, a concave rotation support portion 60 having a partially open lower part is provided at the indoor end of the bracket 6a, and the upper end (shaft portion 91) of the light-blocking fin 9 is formed into a columnar shape and rotatably supported by a predetermined angle. can do. It is preferable that such brackets 6a are fitted at a plurality of locations on the mounting frame 2 and the light-blocking fins 9 are supported on each bracket 6a. The bracket 6a may also serve as a bracket 6 for fixing to a frame such as a ceiling surface, or may be a member different from the bracket 6 for fixing to this frame.

  As another example of direct support of the light shielding fin 9, as shown in FIG. 23C, the shape of the bearing portion 20 is formed by a round shaft extending from the mounting frame 2, and the bearing portion 20 of the round shaft is gripped. The shaft portion 91 of the light-blocking fin 9 can be formed so as to be supported by the shaft.

  As described above, the light-shielding fins 9 are provided on the side where the operation cord 7 is pulled in the front-rear direction of the winding pipe 3 and can be rotated directly or indirectly with respect to the mounting frame 2 and the support members 2a and 2b. When the operation cord 7 comes into contact with the light-blocking fins 9 during the pulling operation, the operation cord 7 is rotated by the tension of the operation cord 7, so that the load required for the pulling operation is not greatly increased, and the light-shielding function is prevented. Can act. In particular, the cloth contact portion (curved raised portion) 94 of the light-shielding fin 9 is formed to have a curved shape so that the frictional resistance is reduced even when the operation cord 7 comes into contact with the light-shielding fin 9. be able to. By providing the light-blocking fins 9 so as to cover at least a part of the operation pulley 8, the design can be improved. The configuration shown in the seventh embodiment can be applied to the previous embodiment.

  ADVANTAGE OF THE INVENTION According to this invention, since the light-shielding fin which can shield light leak from the clearance gap produced between a winding pipe and a mounting frame effectively can be comprised, it is useful for the use of the roll screen of arbitrary forms. .

1, 1a, 1b, 1c, 1d, 1e, 1f Roll screen 2 Mounting frame 2a, 2b Support member 3 Winding pipe 4 Screen 5, 5a Weight bar 7 Operation code 8 Operation pulley 9, 9a, 9b, 9c, 9d Light shielding Fin 10 Side cover 10a Wall portion 20 Bearing portion 20a, 20b Rotation restricting piece 91, 91a Shaft portion 92, 92a Curved portion 93, 93a Shielding portion 94, 94a Fabric contact portion 95, 95a Interference alleviation portion 96, 96a Tip portion 80 Rotation restriction unit 81 Rotation reduction unit

Claims (13)

A roll screen that raises and lowers the screen to adjust the amount of light taken into the room,
Winding means for suspending and supporting the screen so as to be windable,
Fixing means for supporting the winding means,
Light-shielding fins that suppress light leakage occurring above the winding means,
The light-blocking fins prevent the direct incident light having an elevation angle of at least 0 ° or more between the fixing means and the winding means, and vertically move the fixing means so as not to contact the screen from a lower limit to a predetermined height. A roll screen characterized by being axially movably supported. A roll screen that raises and lowers the screen to adjust the amount of light taken into the room,
Winding means for suspending and supporting the screen so as to be windable,
Fixing means for supporting the winding means,
Light-shielding fins that suppress light leakage occurring above the winding means,
A roll screen, wherein the light-blocking fins are rotatably supported by the fixing means so that the light-blocking fins do not come into contact with the screen even at the maximum winding diameter.   A rotation restricting portion for restricting a rotation range of the light shielding fin is provided as a part or as a separate member with respect to one or both of the light shielding fin and the fixing means. The roll screen according to claim 1, wherein   The angle of the light-shielding fin is adjusted by the rotation restricting portion so as to provide an interval between the light-shielding fin and the peripheral surface of the screen when the screen has a maximum winding diameter. The roll screen described in 1. A roll screen that raises and lowers the screen to adjust the amount of light taken into the room,
Winding means for suspending and supporting the screen so as to be windable,
Fixing means for supporting the winding means,
Light-shielding fins that suppress light leakage occurring above the winding means,
The roll screen, wherein the light shielding fin is rotatably supported by the fixing means so as to rotate gently by interference with a weight member of the screen.   The roll screen according to claim 5, wherein the light shielding fin is rotatably supported by the fixing means so as to have a resistance that does not hinder its own weight drop.   7. The roll screen according to claim 5, wherein a rotation reduction unit for reducing a rotation speed of the light shielding fin is provided on the light shielding fin. 8.   The roll screen according to claim 7, wherein the rotation decelerating part has a damper function of reducing vibration when the light shielding fin rotates.   The said rotation deceleration part is comprised with the member adhered with respect to the shaft part of the said light shielding fin, or is integrally molded with the shaft part of the said light shielding fin, The said, or characterized by the above-mentioned. 9. The roll screen according to 8.   The roll screen according to claim 7, wherein the rotation speed reduction unit is configured by a grease damper or an oil damper. A roll screen capable of raising and lowering the screen by winding or rewinding with an operation code,
Winding means for suspending and supporting the screen so as to be windable,
Operating means for enabling the winding or rewinding of the screen to be operated by an operation code,
Fixing means for supporting the winding means,
Light-shielding fins that suppress light leakage occurring above the winding means,
The light-shielding fin is provided on a side for performing the pulling operation of the operation code in the front-rear direction of the winding unit, and is rotatably supported directly or indirectly with respect to the fixing unit. A roll screen, characterized in that when the operation code comes into contact with the light shielding fin, the operation code is rotated by the tension of the operation code.   The roll screen according to claim 11, wherein the light shielding fin is provided so as to cover at least a part of the operation unit.   The roll screen according to claim 11, wherein the light-shielding fin has a curved protruding portion that protrudes in a curved shape that can be brought into contact with the operation code.