JP2022096667A - Screen device - Google Patents

Abstract

To provide a screen device mechanically automating open/close operation of a lower shading member by associating motion of a screen member ascending and descending along a guide rail fixed on a frame body with opening/closing of the lower shading member independently arranged from the screen member.SOLUTION: A screening device (a roll screen 1) of an embodiment of the present invention is provided with a lower shading member 8 rotatable relative to a floor side WB of a frame body so as to allow shading or natural lighting on a gap created in a lower part of a weight member (a weight bar 20) at a screen member (a screen 2) ascending and descending along a guide rail 4. For the lower shading member 8, an interlock mechanism 12 is provided which makes the lower shading member rotate in a natural lighting direction as the weight member ascends and makes the lower shading member rotate in a shading direction as the weight member descends. The interlock mechanism 12 of one embodiment is configured to fold back a lower part open/closed code 9 near a top part of the guide rail 4, of which one end is attached on an open/close part 8b of the lower shading member 8, and configured to detachably or always undetachably attach the other end on an end part of the weight member through magnetic force.SELECTED DRAWING: Figure 1

Description

The present invention relates to a shielding device configured to raise and lower a shielding material along a guide rail fixed to a frame body.

Conventionally, a shielding device such as a roll screen or a horizontal blind configured to move the shielding material up and down along a guide rail fixed to a frame body is known (see, for example, Patent Document 1).

In such a roll screen, the screen as a shielding material wound around the take-up shaft is lowered by the pull-out operation, and the screen pulled out from the take-up shaft is raised by the take-up operation. A pair of guide rails are erected on both sides of the screen, and the outer edge of the screen drawn from the take-up shaft enters the inside of these guide rails.

This causes the outer edge of the screen to move along the guide rails and guide the screen in the ascending / descending direction as the screen descends and ascends.

Further, as a kind of such a shielding device, in the above-mentioned Patent Document 2, a manual operation is performed so that a gap generated below a weight member (weight bar, bottom frame, etc.) provided at the lower end of the shielding material can be shielded or illuminated. Discloses a configuration in which a lower light-shielding member that can rotate relative to the floor side of the frame is provided separately from the light-shielding material (see, for example, Patent Document 2).

As a result, the opening of the window frame in which the shielding device is provided can be widened to widen the field of view when the shielding material rises (when lighting is taken), while when the shielding material descends (when blocking light), the lower light-shielding member is used. It can be shielded from light to enhance its light-shielding property.

JP-A-2015-169027 Japanese Patent No. 6376066

As described above, as a kind of shielding device configured to raise and lower the shielding material along a guide rail fixed to the frame body, the above-mentioned Patent Document 2 describes a weight member (weight) provided at the lower end of the shielding material. It is known that a lower light-shielding member that can be manually rotated relative to the floor side of the frame is provided separately from the shielding material so that the gap generated below the bar, bottom frame, etc.) can be shielded or illuminated. ing.

However, in the conventional technique as disclosed in Patent Document 2, it is necessary to manually open and close the lower light-shielding member in accordance with the raising and lowering operation of the shielding material, which is troublesome.

Therefore, an object of the present invention is to mechanically perform an opening / closing operation of the lower light-shielding member by interlocking the operation of the shielding material that moves up and down and the opening / closing of the lower light-shielding member provided separately from the shielding material in view of the above-mentioned problems. The purpose is to provide a shielding device to be automated.

The shielding device of the present invention is a shielding device configured to move the shielding material up and down along a guide rail fixed to the frame body, and a gap generated below a weight member provided at the lower end of the shielding material is formed. The lower light-shielding member is provided with a lower light-shielding member that can rotate relative to the floor side of the frame so as to be able to block light or collect light, and the lower light-shielding member rotates in the light-collecting direction as the weight member rises. It is characterized in that an interlocking mechanism is provided so as to rotate in the light-shielding direction as the vehicle descends.

Further, in the shielding device of the present invention, the interlocking mechanism opens and closes the lower light-shielding member on any one or both of the pair of guide rails provided at both end portions of the shielding material. The lower opening / closing cord having one end attached to the portion is arranged so as to be folded back near the top of the corresponding guide rail, and the other end of the lower opening / closing cord is at the end of the weight member on the corresponding guide rail side. On the other hand, it is attached and detached by magnetic force or is always non-detachable, the rotation of the lower light-shielding member in the light-shielding direction is operated by the lifting action by the lower opening / closing cord, and the rotation of the lower light-shielding member in the lighting direction is the lower part. It is characterized in that it is configured to operate by the weight of the light-shielding member.

Further, in the shielding device of the present invention, when the weight member is at a predetermined height or higher, the other end of the lower opening / closing cord is attracted by magnetic force to the end of the weight member on the corresponding guide rail side. A suction portion to be attached is provided, and when the weight member is less than a predetermined height, it is configured to be separated from the end portion of the weight member on the corresponding guide rail side. ..

Further, in the shielding device of the present invention, the suction portion provided at the other end of the lower opening / closing cord is changed from a state where the weight member is less than a predetermined height to a state where the weight member becomes a predetermined height or more. It is characterized in that the suction portion has a sufficient magnetic force to be attracted to and attached to the end portion of the weight member on the guide rail side corresponding to the suction portion by a magnetic force.

Further, in the shielding device of the present invention, the suction portion provided at the other end of the lower opening / closing cord is the end of the weight member on the corresponding guide rail side when the descending force of the weight member exceeds the magnetic force. It is characterized in that it is configured to be separated from each other.

Further, in the shielding device of the present invention, the suction portion provided at the other end of the lower opening / closing cord is always attracted by magnetic force even when separated from the end portion of the weight member on the corresponding guide rail side. In addition, the lower opening / closing cord is configured so that tension is always generated.

Further, in the shielding device of the present invention, the lower light-shielding member is rotatable in the light-shielding direction so that the weight member can be lowered to a position where the weight member overlaps in the front-rear direction, and the weight member is rotated in the light-shielding direction. It is characterized in that it is configured to be supportable so as to be held by.

According to the present invention, the operation of the shielding material that moves up and down along the guide rail fixed to the frame body and the opening / closing of the lower light-shielding member provided separately from the shielding material are linked to operate the opening / closing operation of the lower light-shielding member. Since it can be automatically automated, it is possible to save the trouble of opening and closing the lower light-shielding member and improve the usability.

It is a front view which shows the schematic structure of the roll screen configured as the shielding device of 1st Embodiment by this invention. It is sectional drawing which shows the schematic structure of the roll screen configured as the shielding device of 1st Embodiment by this invention. (A) is a lower light-shielding member of one embodiment, a weight bar provided at the lower end of the screen and having a magnetic bar, and a weight bar having a magnetic bar, with respect to a guide rail in a roll screen configured as a shielding device according to the first embodiment of the present invention. It is a plan view (downward view) schematically showing the arrangement relation of the suction part consisting of the magnet attached to the other end of the lower opening / closing cord which attached one end to the lower light-shielding member, and (b) is as an interlocking mechanism. Regarding the functioning lower opening / closing cord, a plan view (downward view) schematically showing the arrangement relationship of the cord folding member for folding the lower opening / closing cord near the top of the guide rail and the lower light-shielding member of one embodiment with respect to the lower opening / closing cord. ). (A) and (b) are the configuration of the lower light-shielding member of one embodiment in the roll screen configured as the shielding device of the first embodiment according to the present invention, and the lower opening / closing cord functioning as the interlocking mechanism according to the present invention. It is a cross-sectional side view schematically showing the operation by. (A) and (b) relate to the operation of the interlocking mechanism of one embodiment having the lower opening / closing cord in the roll screen configured as the shielding device of the first embodiment of the present invention, respectively, by the interlocking mechanism according to the present invention. It is the back view which shows the 1st state schematicly, and the cross-sectional side view. (A) and (b) schematically describe the second state regarding the operation of the interlocking mechanism of one embodiment having the lower opening / closing cord in the roll screen configured as the shielding device of the first embodiment according to the present invention. It is a rear view and a cross-sectional side view which show. (A) and (b) schematically describe the third state regarding the operation of the interlocking mechanism of one embodiment having the lower opening / closing cord in the roll screen configured as the shielding device of the first embodiment according to the present invention. It is a rear view and a cross-sectional side view which show. (A) and (b) schematically describe the fourth state regarding the operation of the interlocking mechanism of one embodiment having the lower opening / closing cord in the roll screen configured as the shielding device of the first embodiment according to the present invention. It is a rear view and a cross-sectional side view which show. It is a front view which shows the schematic structure of the roll screen configured as the shielding device of 2nd Embodiment by this invention. (A) is a weight having a lower light-shielding member of Modification 1 and a magnetic bar provided at the lower end of the screen with respect to a guide rail in a roll screen configured as a shielding device according to the first or second embodiment of the present invention. It is a plan view (downward view) schematically showing the arrangement relationship of the bar and the suction part consisting of the magnet attached to the other end of the lower opening / closing cord having one end attached to the lower light-shielding member, and FIG. A plan view schematically showing the arrangement of the lower opening / closing cord that functions as an interlocking mechanism, the cord folding member for folding the lower opening / closing cord near the top of the guide rail, and the lower light-shielding member of Modification 1 with respect to the lower opening / closing cord. (Looking down). (A) and (b) function as the configuration of the lower light-shielding member of the second modification in the roll screen configured as the shielding device of the first or second embodiment according to the present invention, and as an interlocking mechanism according to the present invention, respectively. It is sectional drawing which shows roughly the operation by the lower opening / closing cord. In (a) and (b), the configuration of the lower light-shielding member of Modification 3 in the roll screen configured as the shielding device of the first or second embodiment according to the present invention, and its operation by the interlocking mechanism according to the present invention, respectively. It is sectional drawing side view which shows roughly about.

Hereinafter, a typical roll screen 1 will be described as an example of the shielding device of each embodiment according to the present invention 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 shown in the drawing are defined as an upward direction (or an upper side) and a downward direction (or a lower side), respectively, and the left direction in the drawing is defined as an upward direction (or a lower side). The left side of the roll screen 1 and the right direction in the drawing are defined as the right side of the roll screen 1 and described. Further, in the example described below, the side to be visually recognized is the front side (or the front side) and the opposite side is the rear side (or the back side) with respect to the front view of the roll screen 1 shown in FIG.

[First Embodiment]
(overall structure)
FIG. 1 is a front view showing a schematic configuration of a roll screen 1 configured as a shielding device according to the first embodiment of the present invention. Further, FIG. 2 is a cross-sectional side view showing a schematic configuration of a roll screen 1 configured as a shielding device according to the first embodiment of the present invention.

The roll screen 1 shown in FIGS. 1 and 2 is assembled to a frame such as a window frame, and the frame shown in FIG. 1 includes an upper frame WT located on the ceiling side and a lower frame WB located on the floor side. It is shown as a left frame body WL located on the left side and a right frame body WR located on the right side.

As shown in FIG. 1, the roll screen 1 has a screen 2 as a shielding material, a shielding mechanism 3, left and right guide rails 4, and a weight bar 20 that functions as a weight member provided at the lower end of the screen 2. The lower light-shielding member 8 is provided so as to be rotatable relative to the lower frame body WB on the floor side of the frame body so that the gap generated below the frame can be shielded or illuminated. Although the details of the lower light-shielding member 8 of this example will be described later, the lower frame 7 is arranged on the lower frame body WB, and the lower light-shielding member 8 can rotate in the front-rear direction with respect to the lower frame 7. It is supported by.

The shielding mechanism 3 is a mechanism for operating the opening and closing of the shielding material, and as shown in FIGS. 1 and 2 in this example, the winding shaft 30 for winding or rewinding the screen 2 configured as the shielding material. A pair of left and right support members 33a that rotatably support the left and right ends of the take-up shaft 30, and a mounting frame 33 that supports the pair of left and right support members 33a on the back surface side of the take-up shaft 30, and a bracket 34. The mounting frame 33 is detachably supported, and a substantially L-shaped plate-shaped (see FIG. 2) support frame 35 that can be fixed to the upper frame body WT with screws or the like is provided. In the examples shown in FIGS. 1 and 2, the plate-shaped cover materials 31 and 32 are attached to the back surface and the side surface of the shielding mechanism 3 in order to improve the dustproof property and the design from the back surface and the side surface of the shielding mechanism 3, respectively. Has been done.

The take-up shaft 30 allows the screen 2 and the weight bar 20 to be raised and lowered by winding or rewinding the screen 2, whereby the screen 2 can be opened and closed.

Further, the roll screen 1 of this example is configured to hold the weight bar 20 by hand and move the screen 2 up and down. Therefore, although not shown in the take-up shaft 30, the roll screen 1 is not shown. A brake mechanism for preventing the weight bar 20 from dropping by its own weight, a spring motor for urging the take-up shaft 30 in the take-up direction of the screen 2, and a constant load device for constant load of the load related to the gripping operation thereof are provided. There is. However, with respect to the present invention, the configuration of the shielding mechanism 3 itself does not have to be limited to this, and may be in various forms. For example, instead of holding the weight bar 20 by hand and moving the screen 2 up and down, the screen 2 is moved up and down by rotating the take-up shaft 30 using an operation code such as a ball chain or the like. The screen 2 may be moved up and down by rotating the take-up shaft 30 based on an electric signal from the outside.

Each of the left and right guide rails 4 is fixed to the left frame body WL and the right frame body WR, respectively, holds the corresponding outer edges of the left and right sides of the screen 2, and is long in the vertical direction to guide the screen 2 in the vertical direction. It is a long member. In this example, each of the left and right guide rails 4 has a guide rail main body 4A and a rail base 4B, respectively, and the rail bases 4B in each of the left and right guide rails 4 have a left frame body WL and a right frame, respectively. It is fixed to the body WR, and the guide rail main body 4A has a structure to be assembled to the corresponding rail base 4B. The use of the rail base 4B may be omitted, and the guide rail main body 4A may be directly fixed to the left frame body WL or the right frame body WR.

A lower cap 5 and an upper cap 6 are attached to the lower end and the upper end of each guide rail 4. The lower cap 5 is a member for light-shielding the gap between the weight bar 20 and the guide rail 4, and is fixed to the lower frame body WB. The upper cap 6 is a member for guiding the outer edge portion of the screen 2 hanging from the shielding mechanism 3 to the corresponding guide rail 4, and is a front guide wall 61 and a rear guide wall having an inclination as shown in FIG. 62 constitutes a guide groove 63 that guides the outer edge of the screen 2 to the corresponding guide rail 4. The upper cap 6 is provided with a regulation wall 64 above the rear guide wall 62 to prevent damage to the screen 2, and the height of the front guide wall 61 is close to the height of the regulation wall 64. It is set to a value, and the height of the rear shielding portion 62 is set lower than that of the regulation wall 64. In the upper cap 6 in this example, a positioning portion 65 for positioning the arrangement relationship between the support frame 35 and the guide rail 4 is formed.

As shown in the figure, the guide rail main body 4A in each guide rail 4 has a front guide wall 41 and a rear guide wall 42, and the gap between the front guide wall 41 and the rear guide wall 42 is the screen 2. A guide passage 45 for holding one of the outer edges in the left-right direction of the above is formed.

In the lower frame body WB, the lower frame 7 is arranged between the left and right guide rails 4, the shaft portion 8a of the lower light-shielding member 8 is pivotally supported by the bearing portion 7a of the lower frame 7, and the lower light-shielding member 8 is opened and closed. The portion 8b can rotate relative to the lower frame body WB on the floor side of the frame body in the front-rear direction.

The lower light-shielding member 8 is capable of light-shielding or daylighting the gap generated below the weight bar 20 provided at the lower end of the screen 2. By providing the lower light-shielding member 8 so as to be rotatable in the front-rear direction, the opening of the window frame in which the roll screen 1 is provided can be widened, and the field of view when the screen 2 is raised (during daylighting) can be widened. When the screen 2 is lowered (light-shielded), the lower light-shielding member 8 can block light to enhance the light-shielding property.

In particular, in the roll screen 1 of the present embodiment, the lower light-shielding member 8 is interlocked with the lower light-shielding member 8 so as to rotate in the lighting direction as the weight bar 20 rises and rotate in the light-shielding direction as the weight bar 20 descends. A mechanism 12 is provided. In the interlocking mechanism 12 of the embodiment shown in FIGS. 1 and 2, a lower opening / closing cord 9 for rotating the lower light-shielding member 8 according to the elevating state of the weight bar 20 is arranged in each of the left and right guide rails 4. Consists of things.

(Interlocking mechanism of one embodiment)
More specifically, the interlocking mechanism 12 of the embodiment shown in FIGS. 1 and 2 has a lower opening / closing cord 9 having one end attached to a cord attaching portion 8c provided at one corner of the opening / closing portion 8b of the lower light shielding member 8. Is folded back by a cord folding member 10 provided near the top of the corresponding guide rail 4, and the other end of the lower opening / closing cord 9 is attached to the upper part of the suction portion 11 made of a magnet that can move in the corresponding guide rail 4. It is attached to the portion 11a, and the suction portion 11 made of the magnet is attached to and detached from the magnetic bar 22 provided at each end of the weight bar 20 by a magnetic force. Then, in the interlocking mechanism 12 of the embodiment shown in FIGS. 1 and 2, the rotation of the lower light-shielding member 8 in the light-shielding direction is operated by the lifting action of the lower opening / closing cord 9, and the rotation of the lower light-shielding member 8 in the daylighting direction is activated. Is operated by the weight of the lower light-shielding member 8.

The magnetic bar 22 of this example is made of a magnetic iron rod and is fixed by a cap member 21 provided at each end of the weight bar 20, but is directly attached to each end of the weight bar 20 itself. It may be fixed.

Further, in this example, the cord folding member 10 is provided in the upper cap 6 near the top of the guide rail 4, and has a shape having two cord folding shafts 10a (see FIG. 2), but near the top of the guide rail 4. It may be provided directly to the guide rail 4 or may have any shape as long as the lower opening / closing cord 9 can be folded back.

Further, in this example, the suction portion 11 made of a magnet is provided at the other end of the lower opening / closing cord 9, and the magnetic bar 22 is provided at each end of the weight bar 20, but the magnetic bar is provided at the other end of the lower opening / closing cord 9. , And magnets may be provided at each end of the weight bar 20.

Further, in this example, a suction portion 11 made of a magnet is provided at the other end of the lower opening / closing cord 9, and a magnetic bar 22 is provided at each end of the weight bar 20 so that the lower opening / closing cord 9 can be attached / detached by magnetic force. Depending on the size and shape of the member 8, the suction portion 11 made of a magnet utilizing this magnetic force is omitted, and the other end of the lower opening / closing cord 9 is always non-detachable and attached to the corresponding end of the weight bar 20. May be.

Further, in this example, in each of the left and right guide rails 4, the lower opening / closing cord 9 that rotates the lower light-shielding member 8 according to the elevating state of the weight bar 20 is provided as the interlocking mechanism 12. Depending on the weight of the lower light-shielding member 8, the interlocking mechanism 12 may be provided on only one of the left and right guide rails 4.

FIG. 3A shows a magnetic bar provided at the lower end of the lower light-shielding member 8 and the screen 2 of one embodiment with respect to the guide rail 4 in the roll screen 1 configured as the shielding device of the first embodiment according to the present invention. A plan view (downward view) schematically showing the arrangement relationship of the weight bar 20 having 22 and the suction portion 11 composed of a magnet attached to the other end of the lower opening / closing cord 9 having one end attached to the lower light-shielding member 8. Is. Further, FIG. 3B shows the lower opening / closing cord 9 that functions as the interlocking mechanism 12 with respect to the cord folding member 10 for folding the lower opening / closing cord 9 near the top of the guide rail 4 and the lower opening / closing cord 9. It is a top view (downward view) which shows roughly the arrangement relation of the lower light-shielding member 8 of an example.

As shown in FIG. 3A, the guide rail 4 of this example has a guide rail main body 4A and a rail base 4B, and a lower cap 5 is arranged at the lower end portion of the guide rail main body 4A. There is. As shown in the figure, the guide rail main body 4A has a front guide wall 41 and a rear guide wall 42, and a gap between the front guide wall 41 and the rear guide wall 42 is an outer edge portion of the screen 2 in the left-right direction. A guide passage 45 for holding the guide passage 45 is formed. More specifically, in the gap between the front guide wall 41 and the rear guide wall 42 in the guide rail main body 4A, a substantially F-shaped cross section for narrowing the outer edge portion of the screen 2 in the left-right direction from the front and back is formed. The shielding material end holding portions 43 and 44 are formed, and further, a pair of front and rear inner guide walls 46 for guiding the vertical movement of the attracting portion 11 made of a magnet are formed.

At the end of the weight bar 20 shown by the broken line in FIG. 3A, a magnetic bar 22 made of an iron rod on a square column is provided in this example, and the magnetic bar 22 is in the vertical direction of the suction part 11 made of a magnet. It is arranged so as to extend to the movement path of. Therefore, the suction portion 11 made of a magnet can be attached to and detached from the magnetic bar 22 provided at each end of the weight bar 20 by magnetic force.

Further, in the lower light-shielding member 8 located below the weight bar 20, the shaft portion 8a of the lower light-shielding member 8 is pivotally supported by the bearing portion 7a of the lower frame 7, and the opening / closing portion 8b of the lower light-shielding member 8 is the floor of the frame body. It is capable of relative rotation in the front-rear direction with respect to the lower frame body WB on the side, and in FIG. 3A, the lower part is rotated in the lighting direction (that is, as shown in FIG. 4A described later). A state in which the lower light-shielding member 8 is closed with respect to the frame 7) is shown.

A cord attachment portion 11a is provided above the suction portion 11 made of a magnet, and a cord attachment portion 8c is provided at one corner of the opening / closing portion 8b of the lower light-shielding member 8. Then, as shown in FIG. 3B, the cord folding member 10 having the two cord folding shafts 10a (see FIG. 2) is inside the upper cap 6 (not shown in FIG. 3) near the top of the guide rail 4. A cord folding member provided near the top of the guide rail 4 to which the lower opening / closing cord 9 having one end attached to the cord attaching portion 8c provided at one corner of the opening / closing portion 8b of the lower light-shielding member 8 is provided. It is folded back at 10 and the other end of the lower opening / closing cord 9 is attached to the cord attachment portion 11a on the upper portion of the suction portion 11 made of a magnet that can move in the corresponding guide rail 4. Then, the suction portion 11 made of a magnet to which the other end of the cord folding member 10 is attached can be attached to and detached from the magnetic bar 22 provided at each end of the weight bar 20 by magnetic force, and the lower light-shielding member 8 is attached to and detached from the magnetic bar 22. As the weight bar 20 rises, it rotates in the lighting direction, and as the weight bar 20 descends, it rotates in the light-shielding direction. As described above, in the interlocking mechanism 12 of the embodiment shown in FIGS. 1 and 2, a lower opening / closing cord 9 for rotating the lower light-shielding member 8 according to the elevating state of the weight bar 20 is arranged with respect to the guide rail 4. It consists of setting.

Then, in the interlocking mechanism 12 of the embodiment shown in FIGS. 1 and 2, the rotation of the lower light-shielding member 8 in the light-shielding direction is operated by the lifting action of the lower opening / closing cord 9, and the rotation of the lower light-shielding member 8 in the daylighting direction is activated. Is operated by the weight of the lower light-shielding member 8.

4 (a) and 4 (b) show the configuration of the lower light-shielding member 8 of the embodiment in the roll screen 1 configured as the shielding device of the first embodiment of the present invention, respectively, and the interlocking mechanism 12 according to the present invention. FIG. 3 is a cross-sectional side view schematically showing the operation of the functioning lower opening / closing cord 9.

In FIG. 4A, the guide rail 4 and the lower cap 5 are simply illustrated by broken lines, and the lower light-shielding member 8 is closed (rotated in the lighting direction) with respect to the lower frame 7 due to the weight of the lower light-shielding member 8. The state) is shown. In the lower light-shielding member 8, the shaft portion 8a formed in a substantially C shape is pivotally supported by the bearing portion 7a also formed in a substantially C-shape in the lower frame 7, and the opening / closing portion 8b of the lower light-shielding member 8 is provided. It can rotate relative to the lower frame WB on the floor side of the frame in the front-rear direction. The lower frame 7 and the lower light-shielding member 8 of this example are made of an aluminum alloy material. The lower frame 7 has a concave-convex cross-sectional shape as shown in the figure so as to satisfy a predetermined rigidity while reducing the weight as much as possible and to maintain flatness with respect to the lower frame body WB and the lower light-shielding member 8. Then, the lower light-shielding member 8 rotates smoothly while suppressing the rattling of the rotation of the lower light-shielding member 8 with respect to the lower frame 7, and the lower light-shielding member 8 is stably held with respect to the lower frame 7. A raised portion 81 having an increased wall thickness is formed on a part of the outer surface of the shaft portion 8a of the lower light-shielding member 8, and the raised portion 81 is formed in a narrow region portion 71 partially formed on the inner surface of the bearing portion 7a of the lower frame 7. It is designed to come into contact.

Then, from the state in which the lower light-shielding member 8 shown in FIG. 4A is closed with respect to the lower frame 7 (the state in which the lower light-shielding member 8 is rotated in the lighting direction), one end is attached to the opening / closing portion 8b that opens and closes the lower light-shielding member 8. When the opening / closing portion 8b of the lower light-shielding member 8 is lifted by the lower opening / closing cord 9, the lower light-shielding member 8 rotates in the light-shielding direction as shown in FIG. 4 (b). In the suction portion 11 made of a magnet provided at the other end of the lower opening / closing cord 9, when the descending force of the weight bar 20 exceeds the magnetic force of the suction portion 11 and the magnetic bar 22, the suction portion 11 separates from the magnetic bar 22. (Separated from the end of the weight bar 20 on the corresponding guide rail 4 side). That is, the magnetic force of the suction portion 11 and the magnetic bar 22 is set to a size that allows the opening / closing portion 8b of the lower light-shielding member 8 to be lifted.

Although the details will be described later, the lower light-shielding member 8 is rotatable in the light-shielding direction so that the weight bar 20 can be lowered to a position where the weight bar 20 overlaps in the front-rear direction. Even if the lower 11 is separated from the magnetic bar 22 and the tension of the lower opening / closing cord 9 is lost and the lower light-shielding member 8 tries to rotate in the lighting direction due to its own weight, the weight bar 20 keeps the state of rotation in the light-shielding direction. It is configured to be supportable to hold. However, the suction portion 11 provided at the other end of the lower opening / closing cord 9 is always between the suction portion 11 and the magnetic bar 22 even when the suction portion 11 is separated from the end portion of the weight bar 20 on the corresponding guide rail 4 side. The lower opening / closing cord 9 may be configured so that tension is always generated in the direction of attraction by magnetic force. Further, in a state where the suction portion 11 provided at the other end of the lower opening / closing cord 9 is separated from the end portion of the weight bar 20 on the corresponding guide rail 4 side, the lower opening / closing cord 9 is constantly tensioned by the weight of the suction portion 11. It can also be configured to take.

That is, when the weight bar 20 is less than the predetermined height h, the suction portion 11 provided at the other end of the lower opening / closing cord 9 is separated from the end portion of the weight bar 20 on the corresponding guide rail 4 side. However, when the weight bar 20 changes from the state where the weight bar 20 is less than the predetermined height h to the state where the weight bar 20 becomes the predetermined height h or more, the suction portion 11 of the weight bar 20 on the corresponding guide rail 4 side It has a sufficient magnetic force to be attracted to and attached to the end portion by a magnetic force.

Hereinafter, with reference to FIGS. 5 to 8, the operation of the interlocking mechanism 12 of the embodiment having the lower opening / closing cord 9 in the roll screen 1 configured as the shielding device of the first embodiment according to the present invention. Will be explained.

(Operation of the interlocking mechanism of the lower light-shielding member)
5 (a) and 5 (b) to 8 (a) and 8 (b) are the first to fourth states with respect to the operation of the interlocking mechanism 12 of the embodiment having the lower opening / closing cord 9 in the roll screen 1, respectively. It is a rear view ((a) of each figure) and the side view of a cross section ((b) of each figure) which show the state schematicly.
In FIGS. 5 to 8, the lower opening / closing cord 9 having one end attached to the cord attaching portion 8c provided at one corner of the opening / closing portion 8b of the lower light-shielding member 8 is provided near the top of the corresponding guide rail 4. It is folded back by the cord folding member 10, and the other end of the lower opening / closing cord 9 is attached to the suction portion 11 made of a magnet.

First, to explain the first state shown in FIGS. 5A and 5B, when the weight bar 20 is at a predetermined height h or more, the opening / closing portion 8b of the lower light-shielding member 8 is closed with respect to the lower frame 7. It is in a state (rotated in the lighting direction). When the weight bar 20 is lowered from this first state, the suction portion 11 and the magnetic bar 22 provided at one end of the weight bar 20 are in a state of being attracted by the magnetic force thereof, so that a lifting action is generated by the lower opening / closing cord 9. The opening / closing portion 8b of the lower light-shielding member 8 operates so as to open toward the lower frame 7 (rotated in the light-shielding direction).

Next, to explain the second state shown in FIGS. 6A and 6B, when the weight bar 20 reaches the predetermined height h by the lowering operation from the first state described above, the lower portion described above is described. The weight bar 20 is overlapped in the front-rear direction with respect to the lower light-shielding member 8 so that the weight bar 20 can be lowered to a position where the weight bar 20 overlaps in the front-rear direction by the lifting action of the opening / closing cord 9. The opening / closing portion 8b of the lower light-shielding member 8 is opened with respect to the lower frame 7 (rotated in the light-shielding direction) until it can be lowered to the position.

Subsequently, to explain the third state shown in FIGS. 7A and 7B, when the weight bar 20 reaches the third state where the height bar 20 becomes less than the predetermined height h by the lowering operation from the above-mentioned second state, the suction unit Even if the lower 11 is separated from the magnetic bar 22 and the tension of the lower opening / closing cord 9 is lost and the lower light-shielding member 8 tries to rotate in the lighting direction due to its own weight, the weight bar 20 keeps the state of rotation in the light-shielding direction. It becomes possible to support it so that it can be held, and the gap generated below the weight bar 20 can be automatically shielded by the lower light-shielding member 8. However, the suction portion 11 provided at the other end of the lower opening / closing cord 9 is always between the suction portion 11 and the magnetic bar 22 even when the suction portion 11 is separated from the end portion of the weight bar 20 on the corresponding guide rail 4 side. The lower opening / closing cord 9 may be configured so that tension is always generated in the direction of attraction by magnetic force. Further, in a state where the suction portion 11 provided at the other end of the lower opening / closing cord 9 is separated from the end portion of the weight bar 20 on the corresponding guide rail 4 side, the lower opening / closing cord 9 is constantly tensioned by the weight of the suction portion 11. It can also be configured to take.

Subsequently, to explain the fourth state shown in FIGS. 8A and 8B, the weight bar 20 is predetermined by an ascending operation from the above-mentioned third state (a state in which the weight bar 20 is less than a predetermined height h). When the height is changed to the fourth state of h or more, the magnetic bar 22 lifts the suction portion 11 by the raising operation, the tension of the lower opening / closing cord 9 is released, and the opening / closing portion 8b of the lower light-shielding member 8 is lowered. It is in a closed state (rotated in the light collection direction) with respect to the frame 7, and the suction portion 11 is attracted to and attached to the magnetic bar 22 at the end of the weight bar 20 on the corresponding guide rail 4 side by magnetic force. Return to be done. In this way, in the state where the weight bar 20 is less than the predetermined height h, the suction portion 11 returns so as to be attracted and attached to the end of the weight bar 20 on the corresponding guide rail 4 side by magnetic force. It has a sufficient magnetic force.

As described above, according to the roll screen 1 configured as the shielding device according to the present invention, the operation of the screen 2 and the weight bar 20 that move up and down along the guide rail 4 fixed to the frame, and the screen 2 and the weight. Since the opening / closing operation of the lower light-shielding member 8 can be mechanically automated by interlocking with the opening / closing of the lower light-shielding member 8 provided separately from the bar 20, the time and effort related to the opening / closing operation of the lower light-shielding member 8 can be omitted, and the usability is reduced. Can be improved.

[Second Embodiment]
(overall structure)
FIG. 9 is a front view showing a schematic configuration of a roll screen 1 configured as a shielding device according to a second embodiment of the present invention. In FIG. 9, the same reference numbers are assigned to the same components as those in the first embodiment shown in FIGS. 1 and 2. The second embodiment shown in FIG. 9 is the same as the other components except that a part of the configuration of the shielding mechanism 3 is different from that of the first embodiment.

That is, the shielding mechanism 3 in the second embodiment shown in FIG. 9 is the same as the first embodiment in that it is a mechanism for operating the opening and closing of the shielding material, but in the first embodiment, it is in front of the bracket 34. Whereas the support frame 35 having a substantially L-shaped plate shape (see FIG. 2) that can be fixed to the upper frame body WT with screws or the like so that the take-up shaft 30 is arranged is used, the same configuration is used. The difference is that the bracket 34 and the support frame 35 can be fixed to the upper frame body WT with screws or the like so that the take-up shaft 30 is arranged below the bracket 34.

More specifically, the shielding mechanism 3 according to the second embodiment has a winding shaft 30 and a winding shaft 30 for winding or rewinding the screen 2 configured as a shielding material, as in the first embodiment. The mounting frame 33 that supports the pair of left and right support members 33a that rotatably support the left and right ends and the pair of left and right support members 33a on the back side of the take-up shaft 30, and the mounting frame 33 are attached and detached via the bracket 34. It is provided with a substantially L-shaped plate-shaped (see FIG. 2) support frame 35 that can be supported as much as possible and can be fixed to the upper frame body WT with screws or the like. However, in the second embodiment, the installation of the plate-shaped cover materials 31 and 32 in the first embodiment is omitted, and the plate-shaped cover material 35T is provided on the front surface of the shielding mechanism 3 from the front surface of the shielding mechanism 3. It is designed to improve the dust resistance and design of the product.

Also in this second embodiment, since the configuration of the interlocking mechanism 12 related to the lower light-shielding member 8 is the same as that of the first embodiment, the guide rail fixed to the frame body is fixed as in the first embodiment. The operation of the screen 2 and the weight bar 20 that move up and down along 4 is linked with the opening and closing of the lower light-shielding member 8 provided separately from the screen 2 and the weight bar 20, and the opening and closing operation of the lower light-shielding member 8 is mechanically automated. Therefore, it is possible to save the trouble of opening and closing the lower light-shielding member 8 and improve the usability.

(Modification 1)
FIG. 10A is provided at the lower end of the lower light-shielding member 8 and the screen 2 of the modification 1 with respect to the guide rail 4 in the roll screen 1 configured as the shielding device of the first or second embodiment according to the present invention. A plan view schematically showing the arrangement relationship of a weight bar 20 having a magnetic bar 22 and a suction portion 11 composed of a magnet attached to the other end of a lower opening / closing cord 9 having one end attached to the lower light-shielding member 8. (Down view). Further, FIG. 10B shows a modification of the lower opening / closing cord 9 that functions as the interlocking mechanism 12 with respect to the cord folding member 10 for folding the lower opening / closing cord 9 near the top of the guide rail 4 and the lower opening / closing cord 9. 1 is a plan view (downward view) schematically showing the arrangement relationship of the lower light-shielding member 8 of 1. In FIG. 10, the same reference numbers are assigned to the same components as those in the first or second embodiment described above, and the components are illustrated so as to be comparable to FIG.

The lower light-shielding member 8 of the modification 1 shown in FIG. 10 is longer in the left-right direction so as to extend to the inside of the guide rail main body 4A as compared with the lower light-shielding member 8 of the one embodiment shown in FIG. It differs in that it is supposed to be. Further, also for the guide rail main body 4A shown in FIG. 10, the lower light-shielding member 8 of the modification 1 below the guide rail main body 4A is allowed to rotate so that the lower light-shielding member 8 of the elongated modification 1 is allowed to rotate. In the rotation region of No. 3, it is assumed that the shield material end holding portions 43 and 44 as shown in FIG. 3 are not provided and are notched. In the guide rail main body 4A of this example, the shield material end holding portions 43 and 44 as shown in FIG. 3 are provided above the rotation region of the lower light-shielding member 8 of the modification 1.

In the lower light-shielding member 8 of the modification 1 configured as shown in FIG. 10 (a), as can be understood from FIG. 10 (b) in comparison with FIG. 3 (b), the opening / closing portion 8b of the lower light-shielding member 8 Since the position of the cord attachment portion 8c provided in one corner can be arranged at the position in the guide rail main body 4A, the opening / closing operation of the lower light-shielding member 8 by the lower opening / closing cord 9 becomes more stable. Further, since the lower opening / closing cord 9 can be further suppressed from protruding from the guide rail main body 4A to the outside, the design is also improved. In the example shown in FIG. 10, the same thing as that shown in FIG. 3 is assumed to be used for the lower frame 7, but the lower frame 7 is also shielded from the lower part of the modification 1 shown in FIG. Similar to the member 8, it may be made longer in the left-right direction.

Even in the form configured like the lower light-shielding member 8 of the modification 1, the lower light-shielding member 8 is interlocked with the opening and closing of the lower light-shielding member 8 of the modification 2 provided separately from the screen 2 and the weight bar 20. Since the opening / closing operation of the lower light-shielding member 8 can be mechanically automated, the labor involved in the opening / closing operation of the lower light-shielding member 8 can be omitted, and the usability can be improved.

(Modification 2)
11 (a) and 11 (b) show the configuration of the lower light-shielding member 8 of the second modification in the roll screen configured as the shielding device of the first or second embodiment according to the present invention, and the interlocking mechanism according to the present invention. 12 is a cross-sectional side view schematically showing the operation of the lower opening / closing cord 9 functioning as 12. In FIG. 11, the same reference numbers as those of the first or second embodiment described above are assigned the same reference numbers, and the components are shown so as to be comparable to FIG.

Compared with the lower light-shielding member 8 of one embodiment shown in FIG. 4, the lower light-shielding member 8 of the modification 2 shown in FIG. 11 has a lower frame 7 instead of being axially supported with respect to the lower frame 7. The difference is that the left and right guide rails 4 (schematically shown by broken lines) have a round shaft-shaped shaft portion 8a that rotatably supports the guide rail main body 4A. The guide rail main body 4A of the left and right guide rails 4 is formed with a bearing portion (not shown) that pivotally supports the round shaft-shaped shaft portion 8a.

Even in the form configured like the lower light-shielding member 8 of the modification 2, the lower light-shielding member 8 is interlocked with the opening and closing of the lower light-shielding member 8 of the modification 2 provided separately from the screen 2 and the weight bar 20. Since the opening / closing operation of the lower light-shielding member 8 can be mechanically automated, the labor involved in the opening / closing operation of the lower light-shielding member 8 can be omitted, and the usability can be improved.

(Modification 3)
12 (a) and 12 (b) show the configuration of the lower light-shielding member 8 of the modification 3 in the roll screen 1 configured as the shielding device of the first or second embodiment according to the present invention, and the interlocking with the present invention. It is sectional drawing side view which shows the operation by the mechanism 12. In addition, in FIG. 12, the same reference numbers are assigned to the same components as those in the first or second embodiment described above, and they are shown so as to be comparable to FIG.

The lower light-shielding member 8 of the modification 3 shown in FIG. 12 has a shorter opening / closing portion 8b so as to be understood in comparison with FIG. Further, in the modification 3 shown in FIG. 12, the other end of the lower opening / closing cord 9 is always inseparable without providing the suction portion 11 made of a magnet at the other end of the lower opening / closing cord 9, and the corresponding end of the weight bar 20 is formed. The portion is attached to the protruding bar 23 regardless of whether it is magnetic or non-magnetic. It should be noted that the shortening of the opening / closing portion 8b in the lower light-shielding member 8 as in the modification 3 can also be applied in a form of pivotally supporting the lower frame 7 as shown in FIG.

Even in the form configured like the lower light-shielding member 8 of the modification 3, the lower light-shielding member 8 is interlocked with the opening and closing of the lower light-shielding member 8 of the modification 3 provided separately from the screen 2 and the weight bar 20. Since the opening / closing operation of the lower light-shielding member 8 can be mechanically automated, the labor involved in the opening / closing operation of the lower light-shielding member 8 can be omitted, and the usability can be improved.

Although the present invention has been described above with reference to examples of specific embodiments, the present invention is not limited to the examples of the above-described embodiments, and can be variously modified without departing from the technical idea. For example, in each of the above-described embodiments, the example of the roll screen 1 in which the weight bar 20 is manually operated to raise and lower the screen 2 has been described. It may be a shielding device using another shielding material such as a horizontal blind. Therefore, the shielding device according to the present invention is not limited to the example of the above-described embodiment, but is limited only by the description of the scope of claims.

According to the present invention, it is useful for a shielding device in which the operation of a shielding material that moves up and down is linked with the opening and closing of a lower light-shielding member provided separately from the shielding material, and the lower light-shielding member is provided separately from the shielding material that moves up and down. be.

1 Roll screen 2 Screen 3 Shielding mechanism 4 Guide rail 5 Lower cap 6 Upper cap 7 Lower frame 8 Lower light-shielding member 9 Lower opening / closing cord 10 Cord folding member 11 Adsorption part 12 Interlocking mechanism 20 Weight bar 21 Cap member 22 Magnetic bar 23 Protruding bar

Claims (7)

A shielding device configured to raise and lower the shielding material along a guide rail fixed to the frame.
It is provided with a lower light-shielding member that can rotate relative to the floor side of the frame so that the gap generated below the weight member provided at the lower end of the shield material can be light-shielded or daylighted.
The lower light-shielding member is provided with an interlocking mechanism that rotates in the lighting direction as the weight member rises and rotates in the light-shielding direction as the weight member descends. Cloaking device. The interlocking mechanism is a lower opening / closing mechanism in which one end is attached to an opening / closing portion that opens / closes the lower light-shielding member on either one or both of a pair of guide rails provided at both end portions of the shielding material. The cord is arranged so as to be folded back near the top of the corresponding guide rail, and the other end of the lower opening / closing cord can be attached / detached by magnetic force to the end of the corresponding weight member on the guide rail side, or is always attached / detached. Impossible to attach, the rotation of the lower light-shielding member in the light-shielding direction is operated by the lifting action by the lower opening / closing cord, and the rotation of the lower light-shielding member in the daylighting direction is operated by the weight of the lower light-shielding member. The shielding device according to claim 1, wherein the shielding device is configured. The other end of the lower opening / closing cord is provided with a suction portion that is attracted and attached to the end of the weight member on the corresponding guide rail side by magnetic force when the weight member is at a predetermined height or higher. The shielding device according to claim 2, wherein when the weight member is less than a predetermined height, the weight member is configured to be separated from the end portion of the weight member on the corresponding guide rail side. .. The suction portion provided at the other end of the lower opening / closing cord is a guide to which the suction portion corresponds when the weight member changes from a state where the weight member is less than a predetermined height to a state where the weight member becomes a predetermined height or more. The shielding device according to claim 3, wherein the shielding device has a sufficient magnetic force to be attracted to and attached to the end of the weight member on the rail side by a magnetic force. The suction portion provided at the other end of the lower opening / closing cord is configured to separate from the end portion of the weight member on the corresponding guide rail side when the descending force of the weight member exceeds the magnetic force. The shielding device according to claim 3 or 4, wherein the shielding device is characterized by the above. The suction portion provided at the other end of the lower opening / closing cord is always attracted by magnetic force even when separated from the end of the weight member on the corresponding guide rail side, and is always attached to the lower opening / closing cord. The shielding device according to any one of claims 3 to 5, wherein the shielding device is configured to generate tension. The lower light-shielding member is configured to be rotatable in the light-shielding direction so that the weight member can be lowered to a position where it overlaps in the front-rear direction, and can be supported so that the state of rotation in the light-shielding direction is held by the weight member. The shielding device according to any one of claims 1 to 6, wherein the shielding device is characterized by the above.

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