JP2016202735A - Descent guide mechanism of shading body of solar shading device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a shading body from failing to descending at a time of a descent due to a weight bar, etc. getting on an upper frame even if a head rail is attached on a wall face on an upper side of the upper frame of a window frame and to suppress a solar radiation amount from a gap between the shading body and the window frame to a minimum by keeping the gap to be small.SOLUTION: A head rail 13 is attached on a wall face on an upper side of an upper frame 12a of a window frame 12 protruding to an indoor side from the wall face 11. An outer screen 14 is suspended from the head rail so as to be lifted/descended. An outer weight bar 17 is arranged along a lower edge of the outer screen. A guide member 21 is attached on an upper face of the upper frame, the guide member guiding the outer weight bar downward from the upper frame when the outer screen is descended. Furthermore, the guide member includes an inclined face 21a descending gradually as the guide member separates from the wall face toward the indoor side.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a guide mechanism for guiding a weight bar or a bottom rail at the lower end of a shield when the shield of a solar shading device such as a roman shade or a horizontal blind is lowered.

  Conventionally, as shown in FIG. 9, the head rail 3 attached to the wall surface 1 above the upper frame portion 2 a of the window frame 2 protruding to the indoor side from the wall surface 1, and suspended from the head rail 3 so as to be movable up and down. There is known a roman shade 5 including an outer screen 4 and an inner screen 6, and an outer weight bar 7 and an inner weight bar provided along the lower edges of the screens 4 and 6, respectively. In this roman shade 5, the head rail 3 extends in the horizontal direction. The interior of the head rail 3 is partitioned into a lower upper space 3b and an upper lower space 3c by a partition wall 3a extending horizontally in the center. The outer screen 4 and the inner screen 6 are attached to the head rail 3 via an outer surface fastener 8 and an inner surface fastener 9, respectively. Further, the outer screen 4 and the inner screen 6 have substantially the same width as the length of the head rail 3, and these screens 4 and 6 are configured to be movable up and down by the outer lifting / lowering cord 5a and the inner lifting / lowering cord 5b.

  In the Roman shade 5 configured as described above, when the outer screen 4 is folded up and the outer weight bar 7 is lowered with the outer weight bar 7 positioned above the upper frame portion 2a of the window frame 2, the outer weight bar 7 rides on the upper surface of the upper frame portion 2a, and the outer weight bar 7 cannot be lowered any more.

  On the other hand, a suspending device for suspending a suspended object such as a screen on the outside of a window opened on an outer wall surface of a building or the like is disclosed (for example, see Patent Document 1). In this hanging device, the window frame constituting the window projects from the outer wall surface, the hook is fixed to the window frame so as to project outward, and a suspended object such as a screen is supported on the hook.

  In the hanging device configured as described above, the entire opening area of the window frame can be covered with a suspended object such as a screen. Further, even when a screen door is attached to the window frame, the entire opening area can be covered without shifting the screen door, so that the function of the screen door is not impaired, and insects and the like can be prevented from entering.

Japanese Patent Laying-Open No. 2005-21856 (Claim 1, paragraph [0012], FIG. 1, FIG. 6, FIG. 8)

  If the head rail of the conventional roman shade is attached to the wall surface above the upper frame portion of the window frame via the hook of the conventional patent document 1, the outer weight bar remains on the upper frame portion even when the outer screen is lowered. Can be lowered smoothly. However, in the Roman shade where this head rail is attached to the wall surface above the upper frame part of the window frame via a hook, the gap between the outer screen and the window frame becomes large, and the amount of solar radiation from this gap increases. was there.

  The object of the present invention is to prevent a weight bar or the like from being lowered on the upper frame portion when the shield is lowered, even when the head rail is attached to the wall surface above the upper frame portion of the window frame, and An object of the present invention is to provide a shield lowering guide mechanism for a solar radiation shielding device that can minimize the amount of solar radiation from the gap when the shield is deployed, by keeping the gap between the window frame and the window frame small. Another object of the present invention is that even if the projection length of the window frame changes for each installation location of the solar shading device, without adding parts other than the guide member and without impairing the appearance of the mounting state of the guide member, It is an object of the present invention to provide a descending guide mechanism for a shielding body of a solar radiation shielding device, in which a guide member can be easily attached to an upper surface of an upper frame portion or a wall surface above the upper frame portion.

  As shown in FIGS. 1 to 3, the first aspect of the present invention is a head rail 13 attached to a wall surface 11 above an upper frame portion 12 a of a window frame 12 that protrudes indoors from the wall surface 11. In the solar radiation shielding device 10 including the shield 14 that is suspended from the head rail 13 so as to be lifted and the weight bar 17 or the bottom rail provided along the lower edge of the shield 14, when the shield 14 is lowered. The guide member 21 for guiding the weight bar 17 or the bottom rail downward from the upper frame portion 12a is attached to the upper surface of the upper frame portion 12a or the wall surface 11 above the upper frame portion 12a. The shield lowering guide mechanism is characterized in that it has an inclined surface 21a that gradually descends as it moves away.

  The second aspect of the present invention is an invention based on the first aspect, and further, as shown in FIG. 1, the inclination angle of the inclined surface 21a of the guide member 21 depends on the protruding length of the upper frame portion 12a. It is configured to be changeable.

  3rd viewpoint of this invention is invention based on 1st or 2nd viewpoint, Comprising: As further shown in FIGS. 1-3, the guide member 21 is the upper frame part 12a upper surface or upper frame which protrudes from the said A mounting piece 21b attached to the wall surface 11 above the portion 12a, one end rotatably attached to the mounting piece 21b, and the other end against the wall surface 11 above the upper frame portion 12a or the upper surface of the protruding upper frame portion 12a. And a rotatable piece 21c that can be contacted, and the upper surface of the rotatable piece 21c is configured to be an inclined surface 21a of the guide member 21.

  A fourth aspect of the present invention is an invention based on the first or second aspect, and as shown in FIG. 7, the guide member 51 is a right angle having a cross section with a right angle of which two sides sandwich a right angle. The triangular prism body 51b is formed in a triangular shape, and the inclined surface 51a of the guide member 51 is constituted by the inclined surface 51c of the triangular prism body 51b.

  In the lowering guide mechanism for the shield according to the first aspect of the present invention, the guide member that guides the weight bar and the like downward from the upper frame when the shield is lowered is the upper surface of the upper frame or the wall surface above the upper frame. Since the guide member has an inclined surface that gradually descends as it moves away from the wall surface toward the indoor side, when the weight bar or the like is positioned above the upper frame portion of the window frame, the weight bar Etc. are guided by the inclined surface of the guide member and descend, pass through the front surface of the upper frame portion, and further descend. As a result, even when the head rail is attached to the wall surface above the upper frame portion of the window frame, it is possible to prevent the weight bar or the like from being lowered on the upper frame portion when the shield is lowered. Further, since the gap between the shield and the window frame is kept small, the amount of solar radiation from the gap when the shield is deployed can be minimized.

  In the descending guide mechanism for the shield according to the second aspect of the present invention, the inclination angle of the inclined surface of the guide member can be changed in accordance with the protrusion length of the upper frame portion. Even if the shielding device changes for each installation location, the guide member can be placed on the upper surface of the upper frame portion or on the wall surface above the upper frame portion without adding any parts other than the guide member and without damaging the appearance of the guide member. Can be easily installed.

  In the lowering guide mechanism for the shield according to the third aspect of the present invention, the guide member has the mounting piece and the rotating piece, and the upper surface of the rotating piece is configured to be the inclined surface of the guide member. Even if the projecting length of the solar shading device changes for each installation location of the solar shading device, the mounting piece is attached to the upper surface of the upper frame part or the wall surface above the upper frame part, and the rotating piece is the wall surface above the upper frame part or the above By contacting the upper surface of the protruding upper frame portion, the upper surface of the rotating piece becomes the inclined surface of the guide member. As a result, the guide member can be easily attached to the upper surface of the upper frame portion or the wall surface above the upper frame portion without adding parts other than the guide member and without impairing the appearance of the attachment state of the guide member.

  In the descending guide mechanism for the shielding body according to the fourth aspect of the present invention, the guide member is a triangular prism body formed in a right-angled triangle shape with two cross-sections having different lengths sandwiching a right angle, and the inclined surface of the guide member Since the slope of the triangular prism body is configured, when the projection length of the window frame is short, a rectangular surface including the short side of the two sides sandwiching the right angle of the triangular prism body is attached to the upper surface of the upper frame portion, and the window frame When the protruding length is long, a rectangular surface including the long side of the two sides sandwiching the right angle of the triangular prism is attached to the upper surface of the upper frame portion. As described above, the guide member can be easily attached to the upper surface of the upper frame portion without adding parts other than the guide member and without impairing the appearance of the attachment state of the guide member.

It is a longitudinal cross-sectional view of the Roman shade which shows the lowering guide mechanism of the shielding body of 1st Embodiment of this invention, and shows the state which attached the guide member which has an attachment piece and a rotation piece to the upper frame part upper surface with a long protrusion length. It is a side view of the guide member of the descending guide mechanism. It is a top view of the guide member of the descending guide mechanism. It is a principal part longitudinal cross-sectional view which shows the lowering guide mechanism of the shielding body of 2nd Embodiment of this invention, and shows the state which attached the guide member which has an attachment piece and a rotation piece to the upper frame part upper surface with short protrusion length. It is a principal part longitudinal cross-sectional view which shows the downward guide mechanism of the shielding body of 3rd Embodiment of this invention, and shows the state which attached the guide member which has an attachment piece and a rotation piece to the wall surface above the upper frame part with a long protrusion length. . It is a principal part longitudinal cross-sectional view which shows the lowering guide mechanism of the shielding body of 4th Embodiment of this invention, and shows the state which attached the guide member which has an attachment piece and a rotation piece to the wall surface above the upper frame part with a short protrusion length. . It is a principal part longitudinal cross-sectional view which shows the downward guide mechanism of the shielding body of 5th Embodiment of this invention, and shows the state which attached the guide member which consists of a triangular prism to the upper frame part upper surface with a long protrusion length. It is a principal part longitudinal cross-sectional view which shows the downward guide mechanism of the shielding body of 6th Embodiment of this invention, and shows the state which attached the guide member which consists of a triangular prism to the upper frame part upper surface with a short protrusion length. It is a principal part longitudinal cross-sectional view which shows the state which shows a prior art example and does not have a guide member and a weight bar gets on an upper surface of an upper frame part at the time of the fall of a shield.

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

<First Embodiment>
As shown in FIG. 1, the roman shade 10 includes a head rail 13 attached to a wall surface 11 above the upper frame portion 12 a of the window frame 12 projecting from the wall surface 11 to the indoor side via a bracket 15, and the head rail. 13, an outer screen 14 and an inner screen 16 that are suspended so as to be raised and lowered, and an outer weight bar 17 and an inner weight bar provided along the lower edges of the screens 14 and 16, respectively. The head rail 13 extends in the horizontal direction. The head rail 13 is formed in a square tube shape with a substantially inverted U-shaped cross section by extrusion molding or pultrusion of a metal such as aluminum alloy, and the inside of the head rail 13 is formed by a partition wall 13a extending horizontally in the center. It is partitioned into a lower upper space 13b and an upper lower space 13c. The outer screen 14 and the inner screen 16 are attached to the head rail 13 via an outer surface fastener 18 and an inner surface fastener 19, respectively. Further, the outer screen 14 and the inner screen 16 each have a width substantially the same as the length of the head rail 13.

  On the other hand, in this embodiment, the protruding length of the upper frame portion 12a of the window frame 12 to the indoor side is formed relatively long. A guide member 21 for guiding the outer weight bar 17 downward from the upper frame portion 12a when the outer screen 14 is lowered is provided on the upper surface of the protruding upper frame portion 12a. And the guide member 21 has the inclined surface 21a which descends gradually as it leaves | separates from the wall surface 11 toward the indoor side. Specifically, the guide member 21 includes an attachment piece 21b attached to the upper surface of the protruding upper frame portion 12a or the wall surface 11 above the upper frame portion 12a, and one end rotatably attached to the attachment piece 21b. Has a rotating piece 21c capable of contacting the wall surface 11 above the upper frame portion 12a or the upper surface of the protruding upper frame portion 12a. A double-sided adhesive tape 21d is affixed to the lower surface of the mounting piece 21b. The rotating piece 21c is attached to the upper surface of one side of the attaching piece 21b via the pin 21e, whereby the turning piece 12c is configured to be rotatable relative to the attaching piece 12b around the pin 21e. Is done. In this embodiment, the attachment piece 12b is attached to the upper surface of the protruding upper frame portion 12a, and the rotating piece 21c is configured to contact the wall surface 11 above the upper frame portion 12a. That is, the attachment piece 21b is attached to the upper surface of the upper frame portion 12a by the double-sided adhesive tape 21d so that one side portion thereof coincides with the protruding edge of the protruding upper frame portion 12a. And it is comprised so that the upper surface of the rotation piece 21c may become the inclined surface 21a of the guide member 21. FIG. In this embodiment, since the protruding length of the upper frame portion 12a is relatively long, the inclination angle of the upper surface of the rotating piece 21c is relatively small. Further, in this embodiment, a total of two guide members 21 are attached to both ends of the upper surface of the projecting upper frame portion 12a. When the width of the window frame is narrow, one guide member is provided at the center of the upper frame portion of the window frame. As the width of the window frame becomes wider, a guide member is provided in addition to the center of the upper frame portion of the window frame. The number is preferably increased to 2, 3, or more.

  On the other hand, the head rail 13 is provided with an outer lifting device 22 that is connected to the outer screen 14 and lifts the outer screen 14, and an inner lifting device 23 that is connected to the inner screen 16 and lifts the inner screen 16 (FIG. 1). . The outer elevating device 22 and the inner elevating device 23 have a single operation chain (not shown) for driving the outer elevating device 22 and the inner elevating device 23 to raise and lower the outer screen 14 and the inner screen 16 independently. Is connected.

  The outer lifting device 22 includes an outer input shaft (not shown) rotatably attached to the head rail 13, and an outer output shaft 22a rotatably attached to the head rail 13 so as to be coaxial with the outer input shaft. And an outer clutch (not shown) provided between the outer input shaft and the outer output shaft 22a, and an outer stopper (not shown) provided on the outer output shaft 22a. The rotational force of the operation pulley is transmitted to the outer input shaft via a rotational force transmission mechanism (not shown), and the outer output shaft 22a is inserted into the upper space 13b of the head rail 13 in the longitudinal direction of the upper space 13b. It extends and is configured to move up and down the outer screen 14. The outer output shaft 22a is connected to the outer screen 14 via an outer winding drum 22b and an outer lifting / lowering cord 22c. Specifically, the outer winding drum 22b is fitted to the outer output shaft 22a so as not to be relatively rotatable, and the outer elevating cord 22c is configured to be wound around the outer winding drum 22b so as to be fed out. The outer winding drum 22b is rotatably held by an outer drum receiver 22d, and the outer lifting / lowering cord 22c wound around the outer winding drum 22b is moved from the upper space 13b to the rear of the head rail 13 by a cylindrical outer guide member 22e. Derived and drooped. A plurality of outer cord rings 22f are attached to the rear surface of the outer screen 14 at predetermined intervals in the vertical direction. The outer lifting / lowering cord 22c suspended from the upper space 13b is inserted into the outer cord ring 22f and routed vertically downward, and thereafter, the lower end is coupled to the outer cord ring 22f at the lowermost end of the outer screen 14.

  The inner lifting device 23 includes an operation pulley (not shown) around which the operation chain is wound, an inner input shaft (not shown) on which the operation pulley is fitted and rotatably attached to the head rail 13; An inner output shaft 23a rotatably attached to the head rail 13 so as to be coaxial with the inner input shaft; an inner clutch (not shown) provided between the inner input shaft and the inner output shaft 23a; An inner stopper (not shown) is provided on the inner output shaft 23a. The rotational force of the operation pulley is directly transmitted to the inner input shaft without passing through a rotational force transmission mechanism (not shown), and the inner output shaft 23a is inserted into the lower space 13c of the head rail 13 in the longitudinal direction of the lower space 13c. It extends in the direction and is configured to raise and lower the inner screen 16. The inner output shaft 23a is connected to the inner screen 16 through an inner winding drum 23b and an inner lifting / lowering cord 23c. Specifically, the inner take-up drum 23b is inserted into the inner output shaft 23a so as not to rotate relative to the inner output shaft 23a, and the inner lifting / lowering cord 23c is wound around the inner take-up drum 23b so as to be fed out. The inner winding drum 23b is rotatably held by an inner drum receiver 23d mounted in the lower space 13c, and the inner lifting / lowering cord 23c wound around the inner winding drum 23b is lowered by a cylindrical inner guide member 23e. It is led from the space 13c to the lower side of the head rail 13 and hangs down. A plurality of inner cord rings 23f are attached to the rear surface of the inner screen 16 at predetermined intervals in the vertical direction. The inner lifting / lowering cord 23c suspended from the lower space 13c is inserted into the inner cord ring 23f and routed vertically downward, and thereafter, the lower end is coupled to the inner cord ring 23f at the lowermost end of the inner screen 16.

  The operation of the lowering guide mechanism configured as described above will be described. When the outer screen 14 is folded up by operating an operation chain (not shown) and the outer weight bar 17 is positioned above the upper frame portion 12a of the window frame 12, the outer screen 14 is lowered by operating the operation chain. The outer weight bar 17 is guided and lowered by the upper surface of the rotating piece 21c which is the inclined surface 21a of the guide member 21, and further passes through the front surface of the upper frame portion 12a. As a result, even if the head rail 13 is attached to the wall surface 11 above the upper frame portion 13a of the window frame 13, it is possible to prevent the outer weight bar 17 from being lowered on the upper frame portion 12a when the outer screen 14 is lowered. . Further, since the gap between the outer screen 14 and the window frame 13 is kept small, the amount of solar radiation from the gap can be minimized when the outer screen 14 is fully expanded. Furthermore, the guide member 21 can be easily attached to the upper surface of the upper frame portion 12a without deteriorating the appearance of the attached state of the guide member 21.

<Second Embodiment>
FIG. 4 shows a second embodiment of the present invention. 4, the same reference numerals as those in FIG. 1 denote the same components. In this embodiment, the protruding length of the upper frame portion 32a of the window frame 32 toward the indoor side is formed shorter than the protruding length of the upper frame portion of the first embodiment, and the guide member 21 is formed in the first embodiment. The same type of guide member is used. In this embodiment, similarly to the first embodiment, the attachment piece 21b is attached to the upper surface of the protruding upper frame portion 32a, and the rotating piece 21c is brought into contact with the wall surface 11 above the upper frame portion 32a. Configured to touch. That is, the attachment piece 21b is attached to the upper surface of the upper frame portion 32a by the double-sided adhesive tape 21d so that one side portion thereof coincides with the protruding edge of the protruding upper frame portion 32a. However, since the protruding length of the upper frame portion 32a is shorter than the protruding length of the upper frame portion of the first embodiment, the inclination angle of the upper surface of the rotating piece 21c is the upper surface of the rotating piece of the first embodiment. It becomes larger than the inclination angle. The configuration other than the above is the same as that of the first embodiment.

  The operation of the lowering guide mechanism configured as described above will be described. Since the inclination angle of the inclined surface 21 a of the guide member 21, that is, the inclination angle of the rotating piece 21 c can be changed steplessly according to the protruding length of the upper frame portion 32 a of the window frame 32, the upper frame portion 32 a of the window frame 32. Even if the protrusion length of the guide member 21 changes for each installation location of the roman shade 10, the guide member 21 can be attached to the upper frame portion 32a without adding parts other than the guide member 21 and without impairing the appearance of the mounting state of the guide member 21. Can be easily attached to the top surface. Further, since the angle of inclination of the rotating piece 21c of the guide member 21 is large, the outer screen 14 is moved when the outer weight bar 17 is guided and lowered by the upper surface of the rotating piece 21c which is the inclined surface 21a of the guide member 21. It can descend more smoothly than in the first embodiment. Since the operation other than the above is substantially the same as the operation of the first embodiment, repeated description will be omitted.

<Third Embodiment>
FIG. 5 shows a third embodiment of the present invention. 5, the same reference numerals as those in FIG. 1 denote the same components. In this embodiment, the protruding length of the upper frame portion 12a of the window frame 12 to the indoor side is the same as the protruding length of the upper frame portion of the first embodiment, and the guide member 21 is the first embodiment. The same guide member of the form is used. However, the attachment piece 21b is attached to the wall surface 11 above the upper frame portion 12a, and the rotating piece 21c is configured to contact the upper surface of the protruding upper frame portion 12a. That is, the attachment piece 21b is attached to the wall surface 11 by the double-sided adhesive tape 21d so that the tip of the rotating piece 21c substantially coincides with the protruding edge of the upper surface of the protruding upper frame portion 12a. The configuration other than the above is the same as that of the first embodiment.

  In the descending guide mechanism configured as described above, the attachment piece 21b of the guide member 21 attached to the wall surface 11 is hidden behind the rotating piece 21c and is hardly visible, so that the appearance of the attachment state of the guide member 21 can be further improved. Since the operation other than the above is substantially the same as the operation of the first embodiment, repeated description will be omitted.

<Fourth embodiment>
FIG. 6 shows a fourth embodiment of the present invention. 6, the same reference numerals as those in FIG. 2 denote the same components. In this embodiment, the protruding length of the upper frame portion 32a of the window frame 32 toward the indoor side is formed to be short like the protruding length of the upper frame portion of the second embodiment, and the guide member 21 is the second member. The same guide member as in the embodiment is used. However, the attachment piece 21b is attached to the wall surface 11 above the upper frame portion 32a, and the rotating piece 21c is configured to contact the upper surface of the protruding upper frame portion 32a. That is, the attachment piece 21b is attached to the wall surface 11 by the double-sided adhesive tape 21d so that the tip of the rotating piece 21c substantially coincides with the protruding edge of the upper surface of the protruding upper frame portion 32a. The configuration other than the above is the same as that of the second embodiment.

  In the descending guide mechanism configured as described above, the attachment piece 21b of the guide member 21 attached to the wall surface 11 is hidden behind the rotating piece 21c and is hardly visible, so that the appearance of the attachment state of the guide member 21 can be further improved. Since the operation other than the above is substantially the same as the operation of the second embodiment, repeated description will be omitted.

<Fifth embodiment>
FIG. 7 shows a fifth embodiment of the present invention. 7, the same reference numerals as those in FIG. 1 denote the same components. In this embodiment, the guide member 51 is a triangular prism body 51b formed in the shape of a right triangle whose cross section has two sides with different right angles, and the inclined surface 51a of the guide member 51 is an inclined surface of the triangular prism body 51b. 51c. Moreover, in this embodiment, the double-sided adhesive tape 51e is affixed to the rectangular-shaped surface 51d including the long side of the two sides consisting of the long side and the short side across the right angle of the triangular prism 51b. A rectangular surface 51d including the long side of the triangular column 51b is attached to the upper surface of the protruding upper frame portion 12a, and a rectangular surface 51f including the short side of the triangular column 51b is a wall surface 11 above the upper frame 12a. It is comprised so that it may adhere to. Thus, the inclined surface 51c of the triangular prism body 51b is configured to become the inclined surface 51a of the guide member 51. Further, since the rectangular surface 51d including the long side of the triangular prism body 51b is attached to the upper surface of the projecting upper frame portion 12a, the inclination angle of the inclined surface 51c of the triangular prism body 51b becomes small. The configuration other than the above is the same as that of the first embodiment.

  In the descending guide mechanism configured as described above, since the guide member 51 is composed of a triangular prism body 51b that is a single component, the number of manufacturing steps can be reduced and the component management is facilitated as compared with the guide member of the first embodiment. Become. Since the operation other than the above is substantially the same as the operation of the first embodiment, repeated description will be omitted. A relatively large flat chamfer (so-called C chamfer) or a convex curved chamfer (so-called R chamfer) having a relatively large curvature radius along the longitudinal side including a right angle of the triangular prism body 51b. Is preferably formed. This is because the guide member 51 is prevented from coming into contact with the above-mentioned protrusion by forming the C chamfer or R chamfer even if wallpaper or paint protrudes from the portion where the wall surface 11 and the upper surface of the upper frame portion 12a intersect. Good adhesion to the wall surface 11 of the guide member 51 and the upper surface of the upper frame portion 12a can be maintained.

<Sixth Embodiment>
FIG. 8 shows a sixth embodiment of the present invention. 8, the same reference numerals as those in FIG. 7 denote the same components. In this embodiment, as in the fifth embodiment, the guide member 51 is a triangular prism body 51b formed in a right-angled triangular shape with two cross-sectional lengths that are perpendicular to each other. The inclined surface 51a is constituted by the inclined surface 51c of the triangular prism body 51b. However, in this embodiment, the double-sided adhesive tape 51e is affixed to the rectangular surface 51f including the short side of the two sides consisting of the long side and the short side sandwiching the right angle of the triangular prism 51b. A rectangular surface 51f including the short side of the triangular prism 51b is attached to the upper surface of the protruding upper frame portion 32a, and a rectangular surface 51d including the long side of the triangular prism 51b is the wall surface 11 above the upper frame 32a. It is comprised so that it may adhere to. Thus, the inclined surface 51c of the triangular prism body 51b is configured to become the inclined surface 51a of the guide member 51. Further, since the rectangular surface 51f including the short side of the triangular prism body 51b is attached to the upper surface of the protruding upper frame portion 32a, the inclination angle of the inclined surface 51c of the triangular prism body 51b is the slope of the triangular prism body of the fifth embodiment. Become bigger. The configuration other than the above is the same as that of the fifth embodiment.

  In the descending guide mechanism configured in this way, the inclination angle of the inclined surface 51a of the guide member 51 can be changed to two angles according to the protruding length of the upper frame portion 32a of the window frame 32. Even if the protruding length of the frame portion 32a changes for each installation location of the roman shade 10, the guide member 51 can be lifted without adding any parts other than the guide member 51 and without damaging the appearance of the attached state of the guide member 51. It can be easily attached to the upper surface of the frame portion 32a. Further, since the inclination angle of the inclined surface 51a of the guide member 51 is large, when the outer weight bar 17 is guided by the inclined surface 51a of the guide member 51 and descends, the outer screen 14 is more smoothly than in the fifth embodiment. Can descend. Since the operation other than the above is substantially the same as the operation of the fifth embodiment, repeated description is omitted.

  In the first to sixth embodiments, the roman shade is used as the solar shading device, but a solar shading device such as a horizontal blind or a pleated screen may be used. Here, when the solar shading device is a horizontal blind, a bottom rail is provided immediately below the lowermost slat. When the solar shading device is a pleated screen, the bottom rail is provided along the lower edge of the screen body. In the first to sixth embodiments, the present invention is applied to a roman shade having two screens of an inner screen and an outer screen. However, the present invention is also applied to a roman shade having a single screen. it can. Furthermore, in the said 1st-6th embodiment, although the guide member was attached to the upper frame part upper surface or wall surface with the double-sided adhesive tape, the guide member was attached to the upper frame part upper surface or wall surface with screws, an adhesive agent, etc. Also good.

10 Roman shade (sunlight shielding device)
DESCRIPTION OF SYMBOLS 11 Wall surface 12 Window frame 12a Upper frame part 13 Head rail 14 Outer screen (shielding body)
16 Outer weight bar (weight bar)
21, 51 Guide member 21a, 51a Inclined surface of guide member 21b Mounting piece 21c Rotating piece 51b Triangular prism 51c Slope of triangular prism

Claims (4)

A head rail attached to a wall surface above the upper frame portion of the window frame that protrudes indoors from the wall surface, a shield suspended from the head rail so as to be movable up and down, and provided along the lower edge of the shield In a solar shading device with a weight bar or bottom rail
When the shield is lowered, a guide member that guides the weight bar or the bottom rail downward from the upper frame part is attached to the upper surface of the upper frame part or the wall surface above the upper frame part,
A lowering guide mechanism for a shielding body, characterized in that the guide member has an inclined surface that gradually descends as it moves away from the wall surface toward the indoor side.   The shield lowering guide mechanism according to claim 1, wherein an inclination angle of an inclined surface of the guide member is configured to be changeable according to a protruding length of the upper frame portion.   The guide member is attached to an upper surface of the protruding upper frame part or a wall surface above the upper frame part, and one end is rotatably attached to the attachment piece, and the other end is above the upper frame part. The shield according to claim 1, further comprising: a rotating piece that can contact a wall surface or the upper surface of the protruding upper frame portion, wherein the upper surface of the rotating piece is an inclined surface of the guide member. Descent guide mechanism.   2. The guide member according to claim 1, wherein the guide member is a triangular prism body formed in a right triangle shape having different cross-sectional lengths on two sides sandwiching a right angle, and the inclined surface of the guide member is configured by a slope of the triangular prism body. The lowering guide mechanism for the shield according to 2.

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