Perforated curtain runner and curtain opening / closing apparatus using perforated curtain runner

Abstract

To provide a curtain runner that enables smooth opening and closing of a curtain using the same component and structure even when the installation location of the curtain is a horizontal surface in an open ceiling or an inclined surface of a skylight, and a curtain opening / closing apparatus using the curtain runner.SOLUTION: A curtain trunk member comprises a trunk member and a curtain holding member. The trunk member has a substantially rectangular-parallelepiped shape and includes: a rotation shaft attachment portion in which wheels can be attached to both side surfaces at an upper part thereof; a through-hole at a central part thereof, penetrating from a front surface to a rear surface of the trunk member so as to connect to a runner rail; and a curtain holding member connection portion at a lower part thereof. The curtain holding member connects and fixes a curtain body directly or via a clamping member through the curtain holding member connection portion, and the curtain holding member connection portion has a function that can adjust an inclination angle of the curtain body.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a curtain runner that can achieve smooth opening and closing of a curtain using the same parts and structure regardless of whether the curtain is installed on a horizontal surface or an inclined surface, and that is compatible with either electric or manual curtain opening and closing devices, and to a manual or electric curtain opening and closing device that uses the curtain runner. [Background technology]

[0002] In recent years, home interiors, furniture, and decor have come to require customization to fit diverse residential structures. This has led to increased costs for designing and manufacturing custom-made furniture and interiors, and the need for connecting parts to fit the structure of the installation location has also led to rising repair costs. Furthermore, recent trends in home design have seen an increase in homes incorporating skylights for natural light and open-ceiling spaces to create a sense of openness in living rooms and entry halls. However, these have led to problems such as excessive room temperature increases due to direct sunlight through skylights in warm seasons and reduced heating efficiency due to heated air rising through open-ceiling spaces in cold seasons. One solution to these problems is the installation of curtains, blinds, or roller blinds.

[0003] Basically, curtains are installed by attaching a curtain rail to the wall above the upper edge of a window that is installed perpendicular to the floor, fitting multiple runners, and hanging the hooks at the top of the curtain on the runners. Because curtains hang perpendicular to the floor to cover the window, they reduce direct sunlight and mitigate the effects of heat and cold from the outside air by creating a layer of air between the window and the curtain. However, some skylights are sloped to follow the shape of the roof. If curtains or other curtains are installed on such sloped windows using the basic method described above, a large gap will form between the curtain, which hangs perpendicular to the floor, and the bottom of the sloped skylight, preventing the creation of an air layer. This not only prevents the curtains from achieving their full effect, but also impairs the interior view. Therefore, in addition to curtains and blinds, roller blinds can also be used to block direct sunlight from sloped skylights. However, in interior design, a sense of unity is one of the important values. For example, if you want to avoid mixing curtains and roller blinds in a home, using a roller blind in one place on a sloped skylight will limit your options to installing roller blinds on all windows, but it would be more desirable to have the option of installing curtains on all windows.

[0004] Next, when using curtains as partitions in open spaces such as living rooms or entry halls, there are two methods: one is to attach dedicated rails to both sides of the wall and fold a shade-like screen with a pipe running through it to open and close it, as shown in Figure 16, and the other is to place curtain rails facing each other and fit a pulley-type runner into the rail. However, the former method requires dedicated rails and requires the screen to be folded to open and close, making it difficult to change the design after installation and maintenance, such as replacing the screen or adjusting its width, is not easy. The latter method assumes the use of steel curtain lanes, which are suitable for thin curtains. However, if a thicker material is used to enhance heat insulation, for example, the weight of the curtain increases friction between the runner and the inside of the lane, hindering smooth opening and closing. Furthermore, when installed on an inclined surface, the runners themselves are tilted, reducing the contact area between the runners and the inside of the lane, further increasing the friction on the contact surface and further hindering smooth opening and closing.

[0005] In addition, since the open-ceiling areas of homes are usually located in areas with high ceilings, and skylights are installed at high locations within homes, curtains are generally opened and closed by operating an electric or manual rotary opening and closing device. In the prior art, a curtain opening and closing device that does not use electricity is known as "a curtain opening and closing device that allows the curtain to be opened and closed semi-automatically using a reel that uses a spiral spring" (quoted from Patent Document 1 (0006)). However, the curtain opening and closing device of Patent Document 1 is unsuitable for use in high places such as skylights because "it is necessary to pull the tip of the elongated body 22." Furthermore, as an electrically powered curtain opening and closing device, a mechanism is known in which a mechanism for rotating a belt is provided inside the curtain rail, and the belt is rotated by the power of a motor or the like to move the curtain runner, such as the "electric curtain device" in Patent Document 2. However, because the electric curtain opening and closing device has a mechanism for rotating a belt inside the curtain rail, it is difficult to change the length once installed. Furthermore, to fit the dimensions of an irregular skylight or atrium, it is necessary to measure, design, and install from scratch, which incurs costs and time, and there are also issues with significant maintenance work due to breakdowns. Therefore, it can be said that it is desirable for an electric curtain opening and closing device to have a "simplified mechanism and easy procurement of parts for the device." [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Patent No. 6463164 [Patent Document 2] Mito 2525668 Summary of the Invention [Problem to be solved by the invention]

[0007] Therefore, the present invention aims to provide a curtain runner that can use the same parts and structure to enable smooth opening and closing of curtains regardless of whether the curtain is installed on the horizontal surface of a void or the inclined surface of a skylight, and that is compatible with electric or manual curtain opening and closing devices, and to provide a manual or electric curtain opening and closing device that uses the curtain runner and is low-cost and has a wide range of customization options. [Means for solving the problem]

[0008] In order to solve the above problems, the curtain runner of the present invention has a curtain runner body comprising a body member and a curtain holding member, the body member being shaped like a substantially rectangular parallelepiped or cylindrical body, and having a rotating shaft attachment part at the top, a through-hole at the center, and a curtain holding member connection part at the bottom, and the rotating shaft attachment part is capable of attaching wheels via a rotating shaft to both side surfaces, The central through hole is a hole larger than the diameter of the runner rail and penetrates from the front to the back of the body member, the curtain holding member connection part connects the curtain holding member to the lower part of the body member and has the function of adjusting the inclination angle of the curtain holding member, and the curtain holding member can fix the curtain body directly or via a clamping member.

[0009] A first curtain opening and closing device, which is an embodiment of a curtain runner according to the present invention, comprises a curtain rail that is generally U-shaped or generally inverted U-shaped in plan view, fixed along a wall surface, two rows of runner rails that are generally U-shaped or generally inverted U-shaped in plan view and that pass through the inside of the cross section of the curtain rail, wheel stoppers at the start and end points of the generally U-shaped or generally inverted U-shaped runner rails that are placed on the curtain rail, a plurality of curtain runner bodies that are placed on the curtain rail and held by the runner rails that pass through central through-holes, and a power generating device, wherein the two rows of runner rails located on two parallel horizontal lines of the generally U-shaped or generally inverted U-shaped runner rails are laid in line with the top and bottom or left and right edges of the installation surface of the wall, and the function of transmitting power generated by the power generating device to the curtain runner bodies via the runner rails. the power generating device is installed so that the inner runner rail and the outer runner rail are in contact with each other at the same time; the starting wheel stopper member is provided at the corner of the curtain rail that is approximately U-shaped or approximately inverted U-shaped and acts as a stopper for the curtain runner body; and the end wheel stopper member is positioned and fixed at the end of the runner rail; the power generating device rotates the runner rail back and forth along the curtain rail, opening and closing the curtain body fixed via the curtain runner body.

[0010] Next, a second curtain opening and closing device, which is an embodiment of a curtain runner according to the present invention, comprises a curtain rail that is roughly U-shaped or roughly inverted U-shaped in plan view, fixed along a wall surface, two runner rails that pass through the inside of the cross section of the curtain rail, wheel stoppers provided at the start and end points of the two runner rails that are held by the runner rails that are placed on the curtain rail and pass through a through hole in the center of the curtain runner body, a plurality of curtain runner bodies that are placed on the curtain rail and pass through a through hole in the center, rotating members connected to the start points of the two runner rails, a power generating device connected to one of the rotating members, and a power transmission device that connects the rotating members together, The two runner rails are threaded rods or male screw rods and are laid in parallel along the top and bottom or left and right edges of the installation surface of the wall to which the curtain rail is fixed, the ring stop members at the start and end points are arranged to sandwich the plurality of curtain runner bodies, the curtain runner bodies are connected so that the runner rails pass through the through holes in the center, and the curtain runner closest to the end point of the runner rails is connected to a curtain runner body with a spiral groove or female screw groove on the inner peripheral surface of the through hole, and the rotating member rotates the runner rails in a forward or reverse direction. the power transmission device has the function of linking with and transmitting the direction and degree of rotation of the rotating members connected to the two runner rails; the power generating device has the function of rotating the rotating members forward or backward; and the curtain runner body having a spiral groove or female screw groove on the inner surface of the through hole propels the runner rail in a spiral rotation as the runner rail rotates, pulling or pushing back other curtain runner bodies and opening and closing the curtain body fixed through the curtain runner body.

[0011] Furthermore, a third curtain opening and closing device which is an embodiment of the curtain runner according to the present invention has, in addition to the features of the curtain opening and closing device according to the second embodiment, runner rail connecting members at the end portions on the terminal side and the start side of the two runner rails, and the runner rail connecting members are members which screw into the ends of the runner rails of the helical rods or male screw rods, and are members for connecting the runner rail of the installed helical rods or male screw rods to the runner rail of the other connected helical rods or male screw rods, and the runner rails are connected to the respective connecting ends of the runner rail of the helical rods or male screw rods and the runner rail of the other connected helical rods or male screw rods. The inner rail connecting member is screwed together to connect the two runner rails through the runner rail connecting member, and by selecting whether the spiral groove or male screw rod of the runner rail of the other connected spiral rod or male screw rod is right-handed or left-handed, it is possible to select whether the curtain runner body having a spiral groove or male screw rod on the inner surface of the through hole connected to the runner rail of the other connected spiral rod or male screw rod rotates in the same direction or the opposite direction as the curtain runner body having a spiral groove or male screw rod on the inner surface of the through hole connected to the runner rail of the installed spiral rod or male screw rod, and propel it in a spiral rotation.

[0012] The fourth curtain opening and closing device, which is an embodiment of the curtain runner according to the present invention, has the features of the curtain opening and closing device according to the third embodiment, and in addition, the shape of the runner rail connecting member is cylindrical, and has a through hole that penetrates from the center of the left side surface to the center of the right side surface, a runner rail connecting hole and a rod-shaped member connecting hole on the top surface, and a recessed portion at the end of the right side surface that is larger than the diameter of the through hole, and the runner rail of an installed spiral rod is inserted into the through hole from the left side surface of the runner rail connecting member, and a rod-shaped member is inserted into the recessed portion from the right side surface, and the runner rail inserted from the left side surface of the runner rail connecting member is connected to the runner rail. The rod-shaped member is threadedly engaged with the runner rail connecting member through the runner rail connecting hole by a runner rail connecting bolt, and the rod-shaped member is threadedly engaged with the runner rail connecting member through the rod-shaped member connecting hole by a rod-shaped member connecting bolt, and similarly, the runner rail connecting member is threadedly engaged with the end of the other runner rail to be connected so that the recesses face each other, and the runner rails can be connected by sandwiching the rod-shaped member between the runner rail connecting member at the end of one runner rail and the runner rail connecting member at the end of the other runner rail and screwing them together. [Effects of the Invention]

[0013] In a curtain runner according to the present invention, the curtain runner body comprises a body member and curtain holding members, the body member being generally rectangular or cylindrical and having a rotation shaft attachment portion at its upper part, a through-hole in its central part, and a curtain holding member connection portion at its lower part. The rotation shaft attachment portion can accommodate wheels on both sides and functions to ensure smooth and stable movement of the curtain runner body along a runner rail, the central through-hole being larger than the diameter of the runner rail and penetrating from the front to the back of the body member, and having the function of fixing the curtain runner body to the curtain rail or allowing it to move along the curtain rail depending on the size of the hole. The curtain holding member connection portion connects the curtain holding members to the lower part of the body member and has the function of adjusting the inclination angle of the curtain holding members, so that the curtain body fixed to the curtain holding members can be tilted to match the inclination angle of the installation surface on a vertical, inclined, or horizontal plane, thereby reducing the costs of designing, manufacturing, and maintaining curtain rails and curtain runners for each inclination angle. Furthermore, the curtain holding members can fix the curtain body directly or via clamping members, and because the curtain holding members are replaceable, they can be customized to suit the material, weight, size, etc. Furthermore, in addition to the above features, by processing the central through-hole into a spiral shape and fitting it with the runner rail of the spiral rod, no gaps are created within the hole, ensuring stability in the movement of the curtain runner on the runner rail, and by rotating the runner rail of the spiral rod around its axis, the curtain runner can be propelled in a spiral rotation.

[0014] A first curtain opening / closing device, which is an embodiment of the curtain runner according to the present invention, uses the curtain runner, so that the curtain body fixed to the curtain holding member can be tilted to match the inclination angle of the installation surface, whether on an inclined or horizontal surface. Furthermore, by locating a power transmission device between two rows of approximately U-shaped or approximately inverted U-shaped runner rails at the midpoint of the vertical line of the approximately U-shaped or approximately inverted U-shaped runner rails, a single power source can transmit a force of the same magnitude and direction to the two rows of runner rails, allowing the curtain body connected to the curtain runner to move in parallel. This allows for highly efficient translation of the curtain body, and its simple structure offers the advantage of being highly versatile.

[0015] A second curtain opening / closing device, which is an embodiment of the curtain runner of the present invention, uses the curtain runner, allowing the curtain body fixed to the curtain holding member to tilt according to the inclination angle of the installation surface, whether on an inclined or horizontal surface. Furthermore, a curtain runner with a spiral groove through-hole is fitted to the runner rail of a spiral rod. Rotating the runner rail of the spiral rod left or right causes the curtain runner with the spiral groove through-hole to rotate in a spiral motion, pulling or pushing back the other curtain runner. This function can be combined with a power transmission device that rotates the two runner rails in the same direction and with the same force to achieve parallel movement of the curtain body. Furthermore, the use of a runner rail connecting member allows the runner rails of different spiral rods to be connected, which not only facilitates extending the installation range of the curtain, but also increases the variety of curtain opening and closing directions by selecting a right- or left-handed spiral groove for the connecting spiral rod. Furthermore, the components other than the curtain runner of the present invention are readily available, achieving low cost and easy customization of the opening and closing direction and the expansion or reduction of the installation location, as described above. [Brief explanation of the drawings]

[0016] [Figure 1] A perspective view of an example of connecting a perforated curtain runner body to a runner rail and a curtain body. [Figure 2] (a) Fixing structure of the perforated curtain runner body, (b) fitting structure, and (c) front view of fixing structure using connecting members [Figure 3] Side view of perforated curtain runner [Figure 4] Perspective view of a perforated curtain runner in use [Figure 5] Front cross-sectional view when using a perforated curtain runner [Figure 6] A perspective view of a curtain runner with a spiral groove in the through hole [Figure 7] Cross-sectional view of a curtain opening / closing device installed on an inclined surface [Figure 8] Top view of the curtain opening and closing device with gears and gear belts installed on a horizontal surface (at opening time) [Figure 9] Top view of the curtain opening / closing device with gears and gear belts installed on a horizontal surface (when the curtain is closed) [Figure 10] AA cross section of a curtain opening / closing device involving gears and toothed belts installed on a horizontal surface [Figure 11] Top view of a curtain opening / closing device with a spiral rod and spiral groove installed on a horizontal surface [Figure 12] Top view of a curtain opening and closing device with a spiral rod and spiral groove installed on a horizontal surface with an additional runner rail connected [Figure 13] A perspective view of the runner rail connecting member when in use [Figure 14] Top view of runner rail connecting member in use [Figure 15] AA cross section when using runner rail connecting members [Figure 16] A method of attaching special rails to both sides of the wall and folding a shade-like screen with a pipe running through it to open and close it. DETAILED DESCRIPTION OF THE INVENTION

[0017] Regarding the configuration of the perforated curtain runner (Claim 1) An embodiment of the perforated curtain runner of the present invention will now be described with reference to the accompanying drawings. As shown in Figure 1, the perforated curtain runner body 1 is composed of a roughly rectangular parallelepiped body member 5 having a rotating shaft attachment part 2 at the top, a through-hole 3 in the middle, and a curtain-holding-member connection part 4 at the bottom, and a curtain-holding member (ball clip) 6 fastened to the body member 5 via the curtain-holding-member connection part 4. The rotating shaft attachment part 2 has a mechanism that allows wheels 7 to be attached to both sides of the body member 5 via rivets (rotating shafts) 8, and the wheels 7 rotate in the direction in which the runner rail 10 is laid, assisting the smooth movement of the curtain runner body 1. The through-hole 3 provided in the center is a hole of equal to or larger in size than the size through which the runner rail 10 can pass, and penetrates from the front to the back of the body member 5. By passing the runner rail 10 through the through-hole 3, it functions to connect the curtain runner main body 1 and the runner rail 10. The curtain holding member connection part 4 connects a curtain holding member (pole clip) 6 to the body member 5 and has the function of fixing the curtain holding member (pole clip) 6 in accordance with the slope of the installation location of the curtain. The curtain holding member (pole clip) 6 is a member that fixes the curtain body 12 by clamping it together with a rod-shaped member (curtain pole) 11, and has the function of moving the curtain body 12 in accordance with the movement of the curtain runner main body 1.

[0018] About the shape of the body member 5 As shown in Figures 2(a) and 3, the upper, central, and lower portions of the body member 5 have different functions. The upper rotating shaft mounting portion 2 is a cylinder placed on its side, the central portion is a rectangular parallelepiped with a cylindrical through-hole 3 extending from the front to the back, and the lower portion is an approximately rectangular parallelepiped with a recessed bottom periphery so that the body member 5 and the curtain holder 6 can be fastened together with connecting members such as bolts and nuts. The body member 5 can be considered a combination of these shapes. Therefore, the shapes of the respective components and the body member 5 do not necessarily have to be approximately rectangular parallelepiped or cylindrical, as long as they fulfill the two essential functions: "When attached to the upper rotating shaft mounting portion 2, the wheels 7 do not obstruct the movement of the curtain runner body 1 in the direction of the runner rail 10 passing through the central through-hole 3" and "The curtain holder 6 fastened to the curtain holder connecting portion 4 can be tilted perpendicular to the direction of the runner rail 10." Furthermore, the components do not need to be integrated from the beginning. For example, as shown in Figure 2(b), they may be cut parallel to the diameter of the through hole 3, and unevenness may be provided at the joints of the divided components to create a structure that allows them to fit together.

[0019] Rotating shaft mounting part 2 The rotating shaft mounting portion 2 has a structure that allows wheels 7 to be attached to both sides of the body member 5. For example, holes can be drilled at the mounting positions of the wheels 7 for connection via rivets (rotating shafts) 8, or thread grooves can be provided for attachment and detachment via bolts and nuts. As shown in FIG. 4, the curtain runner body 1 of the present invention is intended to be connected to a runner rail 10 and to be entirely covered by a curtain rail 14, such as a medium-sized or large-sized lane. Therefore, as shown in FIG. 5, the wheels 7 function to smooth the movement of the curtain runner body 1 on the curtain rail 14 or to facilitate the movement of a heavy curtain. Furthermore, if the wheels 7 are attached in a direction different from the installation direction of the runner rail or curtain rail, the movement of the curtain runner body 1 will be hindered. Therefore, it is desirable that the orientation of the wheels 7 be the same as the installation direction of the runner rail 10 and curtain rail 14. On the other hand, even when the curtain rail 14 is not used, the lower ends of the wheels 7 clamp the runner rail 10, preventing the curtain runner body 1 from tipping over when force is applied from the left or right in the direction of travel, and stabilizing the movement of the curtain runner body 1 on the runner rail 10.

[0020] Regarding the central through hole 3 The through-hole 3 provided in the center is a hole of a size equal to or larger than the size through which the runner rail 10 can pass, and penetrates the body member 5 from the front to the back. By passing the curtain rail 10 through the through-hole 3, the curtain rail 10 can be connected to the curtain runner body 1 and the runner rail 10. When the size of the through-hole 3 is the same as the size of the curtain rail 10, the curtain rail 10 fits tightly against the through-hole 3, allowing the curtain runner body 1 to be fixed to a specific location on the runner rail 10. When the size of the through-hole 3 is larger than that of the runner rail 10, a gap is created between the through-hole 3 and the runner rail 10, allowing the curtain runner body 1 to move along the runner rail. When fixing the curtain runner body 1 with the through-hole 3 larger than the curtain rail 10, circlips, snap rings, or the like can be attached to the runner rail 10 in front of and behind the curtain runner body 1.

[0021] Regarding the through hole 3 having the spiral groove 15 As will be explained in Examples 1, 2, and 3 of the curtain opening and closing device described below, the runner rail to which the perforated curtain runner of the present invention is connected is assumed to be a round rack, a gear belt, or a chain capable of transmitting power by gear rotation, or a helical rod or male-threaded rod with a helical groove. When a helical rod is used as the runner rail, as shown in Figure 6, a helical groove 16 is provided in the through hole 3, and the runner rail of the helical rod is engaged with it. The runner rail of the helical rod can be rotated clockwise or counterclockwise, causing the curtain runner body 1 to spirally rotate along the helical groove. A curtain runner without the helical groove 16 could not be "fixed to a curtain rail" and "moved on a curtain rail" at the same time, but by using a curtain runner and curtain rail with this structure, both functions are possible.

[0022] Curtain holding member connection part 4 The curtain holder connector 4 fastens the curtain holder (pole clip) 6 to the body member 5 and adjusts the angle of the curtain holder (pole clip) 6 to match the tilt angle of the curtain installation location. Figure 7 shows a cross-sectional view of a curtain opening / closing device installed on a sloped surface, taken from the front, between a curtain runner body 1 and an adjacent curtain runner body 1, illustrating the state in which a curtain is installed on a skylight to match the slope of the roof. As shown in Figure 7, the runner rail 10 is installed on a surface parallel to the skylight 16 and in a position that can block sunlight from the skylight 16. The tilt angle adjustment bolt 9a of the curtain holder connector 4 is loosened, and the curtain holder 6 is tilted so that the curtain body 12 sandwiched between the curtain holders 6 and the skylight 16 are parallel. Then, the tilt angle adjustment bolt 9b is tightened, allowing the curtain to be installed to match the tilt angle of the skylight 16. This example employs the fixing method shown in Figure 3, in which "the bottom periphery of the body member 5 is partially recessed to form an approximately rectangular parallelepiped shape, holes are made in the lower part of the body member 5 and the upper part of the curtain holding members, the curtain holding members 6 are placed inside the body member 5, and bolts are passed through the holes and fixed with nuts," but the curtain holding members 6 may also be placed on the outside of the body member 5. Furthermore, as for the tilt direction of the curtain holding member 6, as long as it can be tilted up to 90 degrees left or right with respect to the laying direction of the runner rail 10, it can be used on all horizontal, inclined and vertical surfaces. For example, the curtain holding member connection part 4 can be replaced with a ball joint structure that can rotate 360 ​​degrees, or another connecting member 13b shown in Figure 2(c) can be added, and the body member 5 can be connected to the upper part of the connecting member 13b, and the curtain holding member 6 can be connected to the lower part of the connecting member 13b via a rotating shaft such as a tilt angle adjustment bolt 9a, thereby allowing the tilt angle to be adjusted independently for each member. The adjustment method is not limited to this.

[0023] Regarding the method of fixing the curtain holding member 6 and the curtain body 12 The curtain holding member (pole clip) 6 is a member that can clamp and fix the curtain body 12 via a rod-shaped member (curtain pole) 11, and has the function of moving the curtain body 12 in accordance with the movement of the curtain runner main body 1. It is also possible to use a hook as the curtain holding member 6 and provide a hook hole in the body member 5 as the curtain holding member connection part 4 to hold the curtain body 12, but if the area of ​​the curtain body 12 is large, the central part will be easily bent, so it is desirable to use different holding methods depending on the application.

[0024] Example (1) of a curtain opening and closing device using a perforated curtain runner according to the present invention The operation of a curtain opening and closing device using a perforated curtain runner according to the present invention and a round rack as the runner rail will be described below with reference to the accompanying drawings. 8 and 9 are top views of the curtain opening and closing device according to Example 1, showing the device installed in an open-ceiling space in a house so that the curtain is horizontal. The curtain opening and closing device includes a curtain rail 14 that is generally U-shaped in plan view and fixed along a wall surface, two rows of round racks (runner rails) 17a and 17b that are generally U-shaped in plan view and pass through the inside of the cross section of the curtain rail 14, a start ring stop member 19a and an end ring stop member 19b on the generally U-shaped round racks, a plurality of curtain runner bodies 1 on the round racks, and a gear 20 that serves as a power generating device. The round racks 17a and 17b are installed along the upper and lower edges of a horizontal plane located on two parallel horizontal lines of a roughly inverted U-shape, and function to transmit power generated by the gears 20 to the round racks 17a and 17b. The curtain runner units 1 on the gear belt are arranged on either the inner round rack 17a or the outer round rack 17b, with the inner and outer racks selected differently at the top and bottom. The central through-hole 3 connects the round rack 17a or 17b. As shown in Figure 10, the curtain rail 14 located on the two parallel horizontal lines of the roughly inverted U-shape has internal spaces for accommodating the inner round rack 17a and the outer round rack 17b. The lower part of one of the round racks connected to the curtain runner units 1 has a groove wide enough for the curtain runner units 1 to pass through, matching the range of movement of the curtain runner units 1. The starting wheel stopper member 19a is provided at the corner of the approximately inverted U-shaped curtain rail, and the ending wheel stopper member 19b is positioned and fixed at the end of the round racks 17a and 17b when the curtain opening and closing device is closed, and acts as a stopper for the curtain runner body. The gear 20 is located at the center of the vertical line of the approximately inverted U-shaped gear belt, and is installed so that the inner round rack 17a and the outer round rack 17b are in contact with each other at the same time. As shown in Figure 9, when the gear 20 rotates forward, the upper outer round rack 17a and the lower inner round rack 17b move inside the curtain rail 14 toward the end ring stopper 19b, and when the gear 20 rotates backward, they move toward the start ring stopper 19a. Therefore, when the curtain runner body 1 closest to the end is fixed on the round racks 17a and 17b with a circlip 21, the fixed curtain runner body 1 rotates back and forth on the round racks 17a and 17b, and acts to pull or push back the other curtain runner bodies 1 that are not fixed. The curtain runner bodies 1 are arranged at equal intervals on the upper and lower round racks 17a, 17b, and the curtain body 12 is fixed by sandwiching a curtain pole 22 that is perpendicular to the round racks 17a and 17b together with the curtain body 12, and the gear 20 is connected to a power generating device that rotates it manually or electrically, and by rotating the gear 20, the curtain body 12 can be opened and closed by moving the curtain runner bodies 1.

[0025] Installation on horizontal and inclined surfaces When installing the curtain opening / closing device of Example 1 to block a horizontal surface, the round rack is laid parallel to the floor and the inclination angle of the curtain runner is not adjusted (see Figure 1). On the other hand, to block a sloped surface, as shown in Figure 7, the inclination angle adjustment bolt 9a of the curtain holding member connection part 4 is loosened, the curtain holding member 6 is tilted so that the curtain body 12 fixed by the curtain holding member 6 is parallel to the sloped surface, and the inclination angle adjustment bolt 9a is tightened to install the device according to the inclination angle of the sloped surface. It is also possible to install additional devices symmetrical to the embodiment shown in Figure 7 in a V-shaped configuration. This installation allows for adjustments such as closing only one side depending on the direction of the morning and afternoon sunlight when providing sunshade for an open-ceiling area. Furthermore, in places with semicircular, permeable ceilings, such as greenhouses, the V-shaped installation allows for a larger space than blocking with a flat surface and also has the advantage of allowing for temperature adjustment by changing the sunlight and air circulation. Furthermore, the curtain opening and closing device according to this embodiment can be used for installation on a vertical surface by using only the curtain runner that contacts the upper part of the vertical surface.

[0026] About the position where the curtain opens and closes (ring stopper) In Example 1, the position at which the curtain body opens and closes corresponds to two parallel horizontal lines of the inverted U-shaped round rack (runner rail) and can be freely set within the range to which the round rack (runner rail) can be extended. In Figure 9, it is assumed that the curtain body 12 moves to the end of the curtain rail 14 that covers the device. The starting wheel stopper 19a is provided at the corner of the approximately inverted U-shaped curtain rail and acts as a stopper for the curtain runner body 1, preventing the curtain runner body 1 from coming into contact with the gear 20 and stopping the gear 20. The ending wheel stopper 19b is positioned and fixed at the end of the round racks 17a and 17b when the curtain opening and closing device is closed, and prevents the curtain runner body 1 from moving on the curtain rail beyond the curtain installation range. Therefore, there are no restrictions on the placement of the ring stop members as long as they are positioned to satisfy the aforementioned objectives of "being outside the range of the two parallel horizontal lines of the inverted U-shape to which the curtain body is desired to be moved" and "the curtain runner main body 1 does not come into contact with the gear 20." However, since it is desirable for the curtain runner main body 1, which will be described later, to be connected to a position on the runner rail where opposing curtain runners intersect at right angles, it is desirable to place the ring stop members 19a at the starting point and the ring stop members 19b at the end point on lines that intersect at right angles. The ring stop members are generally assumed to be curtain stoppers attached to curtain rails, but there are no restrictions on their shape, etc., as long as they are components that can prevent the intrusion of curtain runners moving on the round rack (runner rail) and can be fixed in place.

[0027] About installing curtain runners (1) In Example 1, the curtain runner units 1 connected to the round rack are connected to either the inner round rack 17a or the outer round rack 17b at the two parallel horizontal lines of the approximately inverted U-shaped round rack, with the selection of the inner or outer side being different at the top or bottom. This is because if the outer sides or the inner sides are connected to each other, they will be connected to the same round rack, and the moving directions of the opposing round racks will be reversed, making it impossible to open or close the curtain. Furthermore, while typical steel curtain rails have end caps attached to the ends of the rails, and the curtain ends are connected to the end caps with hooks or the like, the curtain opening and closing device of this example can achieve the same function by fixing the curtain runner main body 1 to the starting wheel stopper member 19a or the ending wheel stopper member 19b. The curtain runner main body 1 can be fixed to the wheel stopper member 19 in any number of ways, including connecting with a magnet or hook, using a structure that incorporates the curtain runner main body 1 or a part of it inside the wheel stopper member 19, or attaching a member that fits into the wheel stopper member 19 instead of the wheel 7 to the curtain runner's rotation shaft mounting portion 2.

[0028] About installing curtain runners (2) The mechanism for opening and closing the curtain in this example is to "fix the curtain runner body 1 closest to the end ring stopper member 19b to the round racks 17a and 17b, and the fixed curtain runner body 1 moves forward or backward, pulling or pushing back the curtain runner body 1 that is not fixed to the round rack 17", and the curtain runner body 1 closest to the end ring stopper member 19b must be fixed to the round rack. The fixing method is not limited to this, but may be a shape that fastens the round rack with the through-hole 3 in the body of the curtain runner body 1, or a method that attaches a circlip or snap ring to the round racks in front of or behind the curtain runner body 1. Furthermore, it is desirable that the positions of the curtain runner bodies 1 that are not fixed to the round rack are equally spaced, as with normal curtain installation, and that the opposing curtain runners are connected at right angles. The method of connecting opposing curtain runners with a curtain pole 11, as shown in Figures 8 and 9, makes it easy to maintain the desired positions of the curtain runners, but the connection method is not limited to this.

[0029] About the round rack inside the curtain rail As shown in Figure 10, the curtain rail 14, located on two parallel horizontal lines of a roughly inverted U-shape, has an internal space for accommodating the inner round rack 17a and the outer round rack 17b, and the bottom of one of the round racks (the outer round rack 17b) to which the curtain runner main body 1 is connected has a groove of a width that allows the curtain runner main body to pass through, matching the range of motion of the curtain runner main body 1. The lengths of the round racks 17a and 17b are preferably set so that the end 18a of the round rack is located just before the gear 20 when the curtain opening and closing device shown in Figure 9 is closed, because if the end 18a of the round rack exceeds the gear 20, the round racks 17a and 17b will come off the gear 20. Furthermore, if the position at which the curtain runner body 1 closest to the end ring stop member 19b is fixed to the round racks 17a and 17b is connected significantly further forward than the other end of the round rack, which is end 18b of the round rack, then the round rack 17a or 17b will hang down from the groove provided in the curtain rail 14 on the end ring stop member 19b side, so it is desirable to connect it so that it comes into contact with end 18b of the round rack. Furthermore, since the curtain rail has curved corners in the curtain opening and closing device according to this embodiment, it is desirable that the power transmission member of the gear 20 be made of a material such as resin that can bend to fit the curve. Regarding the selection of the power transmission member, a toothed belt or chain can be used in addition to the round rack 17, but since toothed belts have a shape with one flat surface, they are prone to twisting when they bend around the curves in the corners of the curtain rail, so it is desirable to use a round rack that is less prone to twisting due to bending.

[0030] Power transmission device In order to open and close the curtains 12 connected to multiple curtain runner bodies 1 in parallel, the curtain runner body 1 connected to the inner round rack and the curtain runner body 1 connected to the outer round rack must move in the same direction and at the same speed. In this embodiment, the round racks 17a and 17b function as a power transmission device, efficiently transmitting the force generated by the rotation of the gear 20, which is a power generating device, in the same direction and with the same magnitude. The power transmission device is not limited to a gear and round rack, a gear and gear belt or chain, but may also use a sprocket and roller chain, a pulley and belt, etc.

[0031] Power Generation Device The power to rotate the gear 20, which is the power generating device, is assumed to be a motor-driven component that can be remotely controlled to turn on and off, but there are no limitations on the power generation method, including manual or electric, and methods such as directly transmitting the force generated by pulling or rotating a bar or chain used to open and close a typical roller blind. Furthermore, it is desirable to install the power generating device at the midpoint of the vertical line of the approximately inverted U-shaped round rack in Figures 8 and 9, as this transmits equal force to the inner round rack 17a and the outer round rack 17b, stabilizing the movement and allowing the size of the gear 20 to be secured to a certain extent, thereby increasing the distance the runner rail travels with one rotation of the gear 20, but this is not limited to this.

[0032] Example (2) of a curtain opening and closing device using a perforated curtain runner according to the present invention An embodiment (2) of a curtain opening and closing device using a perforated curtain runner according to the present invention, in which the runner rail is a spiral rod and the through hole has a spiral groove, is described below with reference to the accompanying drawings. FIG. 11 illustrates a state in which the curtain opening / closing device according to the second embodiment is installed in an open-ceiling part of a house so that the curtain is horizontal, as viewed from above. The curtain opening and closing device of Example 2 includes a curtain rail 14 that is approximately inverted U-shaped when viewed from above, fixed along a wall surface, two spiral rod runner rails 23 that pass through the inside cross section of the curtain rail 14, a starting wheel stop member 19a and an ending wheel stop member 19b on the spiral rod runner rail 23, a plurality of curtain runner bodies 1 between the starting wheel stop member 19a and the ending wheel stop member 19b, a flat belt pulley 24 connected to the starting point of the spiral rod runner rail 23 as a power transmission device, a flat belt 25 that connects the flat belt pulleys 24 together, and a power generating device that rotates the flat belt pulleys automatically or manually. The spiral rod runner rail 23 is laid along the top and bottom edges of a horizontal surface that is the installation surface, and a member having a spiral groove that matches the spiral rod runner rail 23 is fitted into it, and the spiral rod runner rail 23 rotates clockwise or counterclockwise, causing the fitted member to rotate in a spiral motion. The multiple curtain runner bodies 1 are arranged between a start ring stopper member 19a and an end ring stopper member 19b to prevent them from falling off the spiral rod runner rail 23, and the start and end ring stoppers are arranged on a line perpendicular to the two spiral rod runner rails 23, and the central through hole 3 is connected so that the spiral rod runner rail 23 passes through. Of the multiple curtain runner bodies 1, the curtain runner body 1 closest to the terminal wheel stop member 19b is selected, and a curtain runner body 27 having a spiral groove on the inner surface of the through hole 3 is fitted into the runner rail 23 of the spiral rod.When the runner rail 23 of the spiral rod rotates clockwise or counterclockwise, the curtain runner body 27 having a spiral groove on the inner surface of the through hole 3 moves forward or backward on the runner rail 23 of the spiral rod, and acts to pull or push back the other curtain runner bodies 1 that do not have a spiral groove on the inner surface of the through hole 3 or that are not fixed to the runner rail 23 of the spiral rod. In addition, the starting point of the runner rail 23 of the spiral rod is connected to the axis at the center of the flat belt pulley 24, the rotation of the flat belt pulley 24 is directly transmitted to the runner rail 23 of the spiral rod, the upper and lower flat belt pulleys 24 are connected by a flat belt 25, and the upper and lower runner rails 23 of the spiral rod are rotated in the same direction and at the same speed, and a power generating device that rotates manually or electrically is connected to one of the upper or lower flat belt pulleys 24. Then, multiple curtain runner bodies 1 are installed on the runner rails 23 of the upper and lower spiral rods, arranged at equal intervals, and the curtain body 12 is fixed by sandwiching a curtain pole 11, which is perpendicular to the runner rails of the spiral rods, together with the curtain body 12, and by rotating a power generating device connected to the flat belt pulley 24, the runner rails 23 of the upper and lower spiral rods rotate through the flat belt pulley 24, and the curtain body 12 can be opened and closed by moving the curtain runner body 27, which has a spiral groove on the inner surface of the through hole.

[0033] Installation on horizontal and inclined surfaces When installing the curtain opening / closing device of Example 2 to cover a horizontal surface, the two spiral rod runner rails 23 are laid parallel to the floor and used without adjusting the inclination angle of the curtain runner (see Figure 1), and when installing on an inclined surface, the same installation method as Example 1 (0021) shown in Figure 7 can be used.

[0034] Regarding curtain rails with rod-shaped male screws The spiral rod runner rail 23 is rod-shaped with a spiral surface. The curtain runner body 27, which has a spirally machined inner surface in the through-hole 3, fits into the spiral rod runner rail 23. Rotating the spiral rod runner rail 23 clockwise or counterclockwise propels the curtain runner 27 in a spiral rotation. The thread diameter is set according to the weight of the curtain to be installed. A narrower thread pitch reduces the distance the curtain runner moves per rotation. For curtain installations over a wide area, a coarser thread pitch is preferable to shorten the time it takes to open and close the curtain. Furthermore, using components that meet unified standards such as JIS for the runner rail allows for easy maintenance, such as part replacement, and eliminates the need for special procurement costs for components and installation tools.

[0035] About the position where the curtain opens and closes (ring stopper) In Example 2, the positions at which the curtain body 12 opens and closes can be freely set within the length of the two spiral rod runner rails 23 laid along the top and bottom edges of the horizontal surface that serves as the installation surface. In Figure 11, it is assumed that the curtain body 12 moves from the start point to the end point of the spiral rod runner rail 23. Therefore, it is desirable to place the start point wheel stopper 19a at the start point of the spiral rod runner rail 23 and the end point wheel stopper 19b at the end point of the spiral rod runner rail 23, on lines that intersect perpendicularly to the two runner rails 23. These wheel stopper members 19a and 19b are intended to prevent the curtain runner body 1 from falling off the spiral rod runner rail 23 as it advances or retreats on the spiral rod runner rail 23. Therefore, there are no limitations on the positions as long as they satisfy the conditions that "start point wheel stopper 19a is placed at the start point of the range in which the curtain body 12 moves" and "end point wheel stopper 19b is placed at the end point." Furthermore, the wheel stop members 19a and 19b are not limited as long as they are members that prevent the curtain runner body 1 moving on the runner rail 23 of the spiral rod from entering.

[0036] About installing curtain runners In order to ensure that the curtain can be tightly closed from end to end at the desired location, it is desirable to fix the curtain runner body 1 closest to the starting ring stop member 19a to the starting ring stop member 19a. There are no limitations on the method for fixing the curtain runner body 1 to the starting ring stop member 19a, such as connecting it with a magnet or hook, using a structure that incorporates it into the ring stop member 19a, or attaching a member that fits into the ring stop member 19a instead of the wheel 7 to the rotation shaft mounting part 2 of the curtain runner. Then, a curtain runner body 27 with a spiral groove on the inner circumferential surface of the through hole is placed as the curtain runner body 1 closest to the end-point wheel stopper member 19b. When the curtain runner body 27 and the runner rail 23 of the spiral rod are fitted together and the runner rail 23 of the spiral rod rotates, the curtain runner body 27 is propelled in a spiral rotation on the runner rail 23 of the spiral rod. This arrangement has the purpose of pulling or pushing back other curtain runner bodies 1 that do not have a spiral groove on the inner circumferential surface of the through hole or that are not fixed to the runner rail 23 of the spiral rod. Next, the installation positions of the curtain runners that are not fixed to the runner rail 23 of the spiral rod should be at equal intervals, as in normal curtain installation, and preferably at positions where opposing curtain runners intersect at right angles. The method of connecting opposing curtain runners with a curtain pole 11 as shown in Figure 11 is a method that makes it easy to maintain the desired positions of the curtain runners, but the connection method is not limited to this.

[0037] Power generation and transmission devices In Example 2, the method of rotating the spiral rod runner rail 23 to impart a spiral propulsive force to the curtain runner body 27, which has a spiral groove on the inner peripheral surface of the through-hole 3, is shown as connecting the starting point of the spiral rod runner rail 23 to the central axis of the flat belt pulley 24, directly transmitting the rotation of the flat belt pulley 24 to the spiral rod runner rail 23, and connecting the upper and lower flat belt pulleys 24 with a flat belt 25 to rotate the upper and lower spiral rod runner rails 23 in the same direction and at the same speed. However, there are no limitations on the power transmission method, such as mechanisms using V-belts or chains. Furthermore, while the power to rotate the flat belt pulley 24, which serves as a power generating device, is assumed to be a motor-driven component that can be remotely controlled on / off, there are no limitations on the power generation method, including manual or electric, such as directly transmitting the force generated by pulling or rotating a bar or chain used in opening and closing typical roller blinds to a gear.

[0038] Example (3) of a curtain opening and closing device using a perforated curtain runner according to the present invention A variation of the curtain opening and closing device according to the second embodiment (3) will be described below with reference to the accompanying drawings. Figure 12 shows a curtain opening / closing device from above in which the end wheel stop member 19b of the curtain opening / closing device of Example 2 has been replaced with a runner rail connecting member 28, and the length of the runner rail of the spiral rod has been extended through the runner rail connecting member 28, with the curtain installed horizontally. The runner rail connecting member 28 is a member that screws into the end of the runner rail 23 of the spiral rod, and is a member for connecting the runner rail 23a of the installed spiral rod to the runner rail 23b of the other connected spiral rod, and is intended to easily extend the runner rail of the curtain opening and closing device of Example 2, or to increase the variety of opening and closing directions of the curtain. Example 3 shown in Figure 12 is a device in which the runner rail connecting member 28 is screwed onto the connecting ends of the runner rail 23a of the spiral rod and the runner rail 23b of the other connected spiral rod, and the runner rail connecting members are connected so that the runner rail 23b of the other connected spiral rod has a spiral groove in the opposite direction to the runner rail 23a of the installed spiral rod.With this structure, in addition to extending the length, the curtain runner main body 27, which has a spiral groove on the inner surface of the through hole 3 connected to the runner rail 23b of the other connected spiral rod, can move forward or backward in the opposite direction to the curtain runner main body 27 connected to the runner rail 23a of the installed spiral rod, and the curtain associated with the curtain opening and closing device can be configured to open both ways, opening from the center to the left and right and closing from both ends to the center.

[0039] How to connect runner rail connecting parts FIG. 13 is a perspective view showing an example of a method for connecting a runner rail to a runner rail connecting member and connecting the runner rail connecting members to each other. The runner rail connecting member 28 is cylindrical in shape and has a through hole 29 that passes through from the center of the left side surface to the center of the right side surface, a runner rail connecting bore 31 on the top surface, a hexagonal shaft connecting bore 33, and a hexagonal recess 35 on the right end surface that is larger than the diameter of the through hole 29. The runner rail 23a of an installed helical rod is inserted into the through hole 29 from the left side surface of the runner rail connecting member 28, and a hexagonal shaft 30 is inserted into the hexagonal recess 35 from the right side surface. The inserted runner rail 23a and the runner rail connecting member 28 are screwed together through the runner rail connecting bore 31 and a runner rail connecting bolt 32, and the inserted hexagonal shaft 30 is screwed together with the runner rail connecting member 28 through the hexagonal shaft connecting bore 33 and a hexagonal shaft connecting bolt 34. Next, similarly, the runner rail connecting member 28 is screwed onto the end of the runner rail 23b to be connected so that the hexagonal recesses 35 face each other. As shown in Figures 14 and 15, the connecting member 28 at the end of the runner rail 23a and the connecting member 28 at the end of the runner rail 23b are screwed together so that the hexagonal shaft 30 is sandwiched between them, thereby connecting the runner rails. This connection method not only provides a strong connection, but also has the advantage that, because the diameter of the hexagonal recess 35 is greater than or equal to the diameter of the through hole 29, the runner rail connecting member 28 can be easily disengaged by loosening the runner rail connecting bolts 32 and the hexagonal shaft connecting bolts 34 and shifting the runner rail connecting member 28 in the direction away from the hexagonal recess 35. Furthermore, the selection of components and the connection method are not limited to these, and the hexagonal shaft 30 used in connection may be a linear shaft and the recess of the runner rail connecting member may be circular.

[0040] The relationship between the direction of the spiral grooves on the runner rail and the opening and closing direction of the curtain When the runner rails 23 are connected by the connecting member 28 and the flat belt pulley 24 is rotated, the runner rail 23a of the installed spiral rod and the runner rail 23b of the other connected spiral rod rotate in the same direction as the rotation of the flat belt pulley 24. Therefore, if the spiral grooves of the two runner rails are oriented in the same direction, the curtain runner bodies 27 connected to the runner rails 23a and 23b also move in the same direction. On the other hand, if the runner rail 23b of the other connected spiral rod is connected so that the spiral groove of the runner rail 23a of the installed spiral rod is opposite, the runner rails 23 rotate in the same direction, but the connected runner rail bodies 27 move in opposite directions. The embodiment shown in Figure 12 is a double-opening curtain opening / closing device in which the spiral grooves are connected in different directions, opening from the center to both ends and closing from both ends to the center, but this can be selected depending on the environment of the installation location, etc. [Explanation of symbols]

[0041] 01 Perforated curtain runner body 02 Rotating shaft mounting part 03 Through hole 04 Curtain holding member connection part 05 Body parts 06 Curtain holding member 07 Wheels 08 Rivet (rotating axis) 09a Tilt angle adjustment bolt 09b Tilt angle adjustment nut 10 Runner rail 11 Curtain poles 12 curtain 13a Convex member 13b Connecting member 14 Curtain rail 14a Curtain rail groove 15 Spiral groove 16 Skylight 17 Round Rack 17a Inner round rack 17b Outer round rack 18 End of round rack 18a End of round rack a 18b End of round rack b 19 Wheel stopper 19a Starting point wheel stopper 19b End stopper 20 Gears 21 Circlip 22 Curtain pole 23 Spiral rod runner rail 23a Installed spiral rod runner rail 23b Runner rail of connecting spiral rod 24 Flat belt pulley 25 Flat belt 26 Power generator (motor) 27 Curtain runner body with spiral grooves on the inner surface of the through hole 28 Runner rail connecting member 29 Through holes 30 hexagonal shaft 31 Runner rail connection drilling 32 Runner rail connecting bolt 33 Drilling for connecting hexagonal shaft 34 Hexagonal shaft connecting bolt 35 Hexagonal recess

Claims

1. The curtain runner body includes a body member and a curtain holding member. The body member has a substantially rectangular parallelepiped or cylindrical shape, and has a rotation shaft attachment portion at an upper portion, a through hole at a central portion, and a curtain holding member connection portion at a lower portion, The rotating shaft mounting portion can mount wheels on both sides thereof via rotating shafts, The through-hole in the central portion is a hole having a diameter equal to or larger than the diameter of the runner rail, and penetrates from the front surface to the back surface of the body member, the curtain holding member connecting portion connects the curtain holding member to the lower portion of the body member and has a function of adjusting the inclination angle of the curtain holding member; The curtain holding member can fix the curtain body directly or via a clamping member. Curtain runner.

2. 2. The curtain runner according to claim 1, A curtain rail having a generally U-shaped or inverted U-shaped plan view is fixed along a wall surface, and two rows of runner rails having a generally U-shaped or inverted U-shaped plan view pass through the interior of the cross section of the curtain rail; A wheel stopper member is placed on the curtain rail and provided at the start and end of the runner rail, which is approximately U-shaped or approximately inverted U-shaped; A plurality of curtain runner bodies are placed on the curtain rail and held by the runner rail, the runner rail passing through a central through hole; a power generating device, The runner rails are laid in two rows, one on each of two parallel horizontal lines, in a roughly U-shaped or inverted U-shaped configuration, along the top and bottom or left and right edges of the installation surface of the wall; The power generated by the power generating device is transmitted to the curtain runner body via the runner rail. The plurality of curtain runner bodies held by the runner rail passing through the through-hole in the central portion are positioned on two parallel horizontal lines of a roughly U-shaped or roughly inverted U-shaped configuration, and are installed on only one of the inner runner rail and the outer runner rail, and further, the selection of the inner or outer side differs between the top and bottom or the left and right, The power generating device is installed so that the inner runner rail and the outer runner rail are in contact with each other at the same time, The starting point wheel stopper is provided at the corner of the approximately U-shaped or approximately inverted U-shaped curtain rail and acts as a stopper for the curtain runner body, The end stopper member is disposed and fixed to the end of the runner rail, The power generating device reciprocates and rotates the runner rail along the curtain rail, The curtain runner body is used to open and close the fixed curtain body. Curtain opening and closing device.

3. 2. The curtain runner according to claim 1, A curtain rail having a generally U-shaped or inverted U-shaped plan view is fixed along a wall surface, and two runner rails pass through the interior of the cross section of the curtain rail; The curtain runner is placed on the curtain rail and is provided at the start and end points of the two runner rails held by the runner rails that pass through the through holes in the center of the curtain runner body. A plurality of curtain runner bodies are placed on the curtain rail and held by the runner rail, the runner rail passing through a central through hole; a rotating member connected to each of the starting points of the two runner rails; a power generating device connected to one of the rotating members; a power transmission device that connects the rotating members together, The two runner rails are threaded rods or male threaded rods, and are laid parallel to the top and bottom or left and right edges of the installation surface of the wall to which the curtain rail is fixed. The start and end ring stoppers are arranged to sandwich the curtain runner bodies, The curtain runner body is connected so that the runner rail passes through a through hole in the center, The curtain runner closest to the end point of the runner rail is connected to a curtain runner body having a spiral groove or a female screw groove on the inner peripheral surface of the through hole, The rotating member has a function of rotating the runner rail forward or backward, the power transmission device has a function of transmitting power in conjunction with the direction and degree of rotation of the rotating members connected to the two runner rails, the power generating device has a function of rotating the rotating member forward or backward, The curtain runner body has a spiral groove or a female screw groove on the inner peripheral surface of the through hole, and when the runner rail rotates, the runner rail is propelled in a spiral rotation, pulling or pushing back other curtain runner bodies, thereby opening and closing the curtain body fixed through the curtain runner body. Curtain opening and closing device.

4. The curtain opening and closing device according to claim 3, The two runner rails have runner rail connecting members at the end portions on the terminal side and the start side, The runner rail connecting member is a member that screws onto the end of the runner rail of a helical rod or male threaded rod, and is a member for connecting the runner rail of an installed helical rod or male threaded rod to the runner rail of another helical rod or male threaded rod to be connected, The runner rail connecting member is screwed to the connecting end portions of the runner rail of the helical rod or male threaded rod and the runner rail of the other connecting helical rod or male threaded rod, The two runner rails are connected through the runner rail connecting member, By selecting whether the spiral groove or male screw groove of the runner rail of the other connected spiral rod or male screw rod is right-handed or left-handed, A curtain runner body having a spiral groove or a female screw groove on the inner peripheral surface of a through hole connected to the runner rail of the other connecting spiral rod or male screw rod, The curtain runner body has a spiral or female screw groove on the inner surface of the through hole connected to the runner rail of the installed spiral rod or male screw rod, and can be selected to rotate in the same direction or the opposite direction to the curtain runner body. Curtain opening and closing device.

5. The curtain opening and closing device according to claim 4, The runner rail connecting member is cylindrical in shape and has a through hole that penetrates from the center of the left side surface to the center of the right side surface, a runner rail connecting hole and a rod-shaped member connecting hole on the top surface, and a recess at the right side surface end that is larger than the diameter of the through hole, The through hole is inserted into the left side surface of the runner rail connecting member, The recess is formed by inserting a rod-shaped member from the right side surface, The runner rail inserted from the left side surface of the runner rail connecting member is screwed to the runner rail connecting member by a runner rail connecting bolt through the runner rail connecting hole, The rod-shaped member is screwed to the runner rail connecting member by a rod-shaped member connecting bolt through the rod-shaped member connecting hole, and Similarly, for the end of the other runner rail to be connected, screw the runner rail connecting member so that the recesses face each other, The runner rails can be connected by screwing the runner rail connecting member at one end of the runner rail and the runner rail connecting member at the other end of the runner rail together so as to sandwich the rod-shaped member. Curtain opening and closing device.

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