Perforated curtain runner and curtain opening / closing device using the perforated curtain runner

Abstract

To provide a curtain runner that can smoothly open and close a curtain using the same parts and structure even when the curtain is installed on the horizontal surface of a void or the inclined surface of a skylight, and a curtain opening and closing device that uses the curtain runner. [Solution] The curtain runner main body comprises a body member and a curtain holding member, the body member being roughly rectangular in shape and having a rotating shaft mounting portion at the top to which wheels can be attached on both sides, a through hole in the centre that penetrates from the front to the back of the body member and connects to a runner rail, and a curtain holding member connection portion at the bottom, the curtain holding member connecting and fixing the curtain body via the curtain holding member connection portion either directly or by a clamping member, and the curtain holding member connection portion has the function of adjusting the inclination angle of the curtain body.

Description

Technical Field

[0001] The present invention relates to a curtain runner that can realize smooth opening and closing of a curtain using the same parts and structure regardless of whether the installation location of the curtain is a horizontal plane or an inclined plane, and can be compatible with an electric or manual curtain opening and closing device, and a manual or electric curtain opening and closing device using the curtain runner.

Background Art

[0002] In recent years, interior decoration of houses, furniture, and interiors have come to be required to be customized according to diversified house structures. Therefore, the design and manufacturing costs of made-to-order furniture and interiors have increased, and furthermore, connection parts are also required according to the structure of the installation location, so the repair costs also tend to increase. In addition, as a trend in recent house designs, the number of houses with skylights for lighting or voids for creating a sense of openness in living rooms, entrance halls, etc. has increased. However, problems such as an excessive rise in room temperature caused by direct sunlight from the skylight in warm seasons and a decrease in heating efficiency caused by warm air heated by heating rising through the void in cold seasons have occurred. As one of the solutions to these problems, installation of curtains, blinds, or roller screens has been carried out.

[0003] Basically, for curtains, a curtain rail is provided on the wall surface further above the upper end of a window installed vertically with respect to the floor. A plurality of runners are fitted, and the hooks at the upper end of the curtain are hung on the runners for installation. Then, since the curtain is suspended vertically with respect to the floor to cover the window, it has the effect of reducing direct sunlight and alleviating the influence of heat and cold associated with the outside air by the air layer between the window and the curtain. However, some skylights are inclined along the shape of the roof. When curtains or the like are attached to such an inclined window by the basic method, a large gap is created between the curtain that hangs vertically with respect to the floor and the lower end of the inclined skylight, no air layer can be formed, and not only can a sufficient effect not be obtained, but also a problem of spoiling the indoor view occurs. Therefore, as a method of blocking direct sunlight from an inclined skylight, in addition to curtains and blinds, a roll screen can also be used. However, in interior decoration and interior design, a sense of unity is emphasized as one of the value criteria. For example, when it is desired to avoid the coexistence of curtains and roll screens in a residence, if a roll screen is used at one place of an inclined skylight, the choice is limited to installing roll screens on all windows. However, it can be said that a state where there is also an option of attaching curtains to all windows is more desirable.

[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." In addition, as a curtain opening and closing device using electric power, like the "electric curtain device" of Patent Document 2, a mechanism in which a belt rotates is provided inside a curtain rail, and the belt is rotated by power from a motor or the like to move a curtain runner. However, since the electric curtain opening and closing device has a mechanism in which a belt rotates inside the curtain rail, once installed, it is difficult to change the length or the like. Furthermore, in order to match the dimensions of a skylight or a void part with an out-of-specification size, it is necessary to measure from scratch and incur costs and time for design and installation, and there is also a big problem in that the maintenance effort due to failures is large. Therefore, it can be said that it is desirable for an electric curtain opening and closing device that "the mechanism of the device is simplified and the procurement of parts related to the device is easy".

Prior Art Documents

Patent Documents

[0006]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0007] Therefore, an object of the present invention is to provide a curtain runner that can realize smooth opening and closing of a curtain using the same parts and structure regardless of whether the installation location of the curtain is a horizontal plane of a void or an inclined plane of a skylight, and that can be compatible with an electric or manual curtain opening and closing device. Another object of the present invention is to provide a low-cost, highly customizable manual or electric curtain opening and closing device using the curtain runner.

Means for Solving the Problems

[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 through-hole in the center is a hole having a diameter equal to or larger than the diameter of the runner rail and penetrates the body member from the front to the back. The curtain holding member connecting part connects the curtain holding member to the lower part of the body member and has a function of adjusting the inclination angle of the curtain holding member. The curtain holding member is directly or The curtain can be fixed via a clamping member.

[0009] The first curtain opening and closing device, which is an embodiment of the curtain runner according to the present invention, includes 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, and a plurality of curtain rails that are held by the runner rails that are placed on the curtain rail and pass through a through hole in the center. The curtain runner system comprises a curtain runner body and a power generating device, and the two rows of runner rails located on two parallel horizontal lines in a roughly U-shaped or roughly inverted U-shaped configuration are laid along the top and bottom or left and right edges of the installation surface of the wall, and has the function of transmitting the power generated by the power generating device to the curtain runner body via the runner rails, and the multiple curtain runner bodies held by the runner rails that pass through the central through-hole are laid along the two parallel horizontal lines in a roughly U-shaped or roughly inverted U-shaped configuration. ofA position, installed only on either the inner runner rail or the outer runner rail, and further configured such that the selection of inner or outer differs vertically or horizontally. The power generation device is installed such that the inner runner rail and the outer runner rail are in contact simultaneously. The starting point stopper member is provided at the corner of the substantially U-shaped or substantially inverted U-shaped curtain rail, and acts as a stopper for the curtain runner body. The ending point stopper member is arranged and fixed at the end of the runner rail. The power generation device reciprocally rotates and propels the runner rail along the curtain rail to open and close a curtain body fixed through the curtain runner body.

[0010] Next, a second curtain opening and closing device which is an embodiment of the curtain runner according to the present invention fixes a curtain rail in a substantially U-shape or substantially inverted U-shape in plan view along a wall surface, and includes two runner rails passing through the inside of the cross-section of the curtain rail, stopper members provided at the starting and ending points of the two runner rails held by the runner rails placed on the curtain rail and passing through the through-holes at the central portions of the curtain runner bodies, a plurality of curtain runner bodies held by the runner rails placed on the curtain rail and passing through the through-holes at the central portions, rotating members respectively connected to the starting points of the two runner rails, a power generation device connected to one of the rotating members, and a power transmission device connecting the rotating members. 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 / closing device, which is an embodiment of the curtain runner according to the present invention, in addition to the features of the curtain opening / closing device according to Embodiment 2, has runner rail connecting members at the end portions on the end side and the start side of the two runner rails. The runner rail connecting member is a member that screws into the end portion of a runner rail of a spiral rod or a male screw rod, and is a member for connecting a runner rail of an installed spiral rod or male screw rod and a runner rail of a spiral rod or male screw rod to be connected to the other. The runner rail connecting member is screwed into each of the connecting end portions of the runner rail of the spiral rod or male screw rod and the runner rail of the spiral rod or male screw rod to be connected to the other. Through the runner rail connecting member, the two runner rails are connected. By selecting whether the spiral groove or the right or left helix of the male screw rod of the runner rail of the spiral rod or male screw rod to be connected to the other is the same as or opposite to the direction of the spiral groove or the male screw rod of the runner rail of the spiral rod or male screw rod to be connected to the other, it is possible to select whether the curtain runner body having a spiral groove or a male screw rod on the inner peripheral surface of the through hole connected to the runner rail of the spiral rod or male screw rod to be connected to the other is in the same direction or the opposite direction as the curtain runner body having a spiral groove or a male screw rod on the inner peripheral surface of the through hole connected to the installed spiral rod or male screw rod runner rail, and it can be spirally rotated and propelled.

[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] The curtain runner according to the present invention includes a curtain runner body having a body member and a curtain holding member. The body member has a substantially rectangular parallelepiped or substantially cylindrical shape, and has a rotation shaft mounting portion at the upper part, a through hole at the central part, and a curtain holding member connection portion at the lower part. The rotation shaft mounting portion can mount wheels on both side surfaces and has a function of smoothly and stably moving the curtain runner body on the runner rail. The through hole at the central part is a hole having a size larger than the diameter of the runner rail, penetrates from the front surface to the back surface of the body member, and has a function of being able to select to fix the curtain runner body to the curtain rail or to be movable on the curtain rail according to the size of the hole. The curtain holding member connection portion connects a curtain holding member to the lower part of the body member and has a function of adjusting the inclination angle of the curtain holding member. In addition to the vertical plane, in an inclined plane or a horizontal plane, it has a function of inclining the curtain body fixed to the curtain holding member according to the inclination angle of the installation surface, and can reduce the design and manufacturing costs and maintenance costs of the curtain rail and the curtain runner for each inclination angle. Further, the curtain holding member can fix the curtain body directly or via a clamping member, and since the curtain holding member is replaceable, it can be customized according to the material, weight, size, etc. Furthermore, in addition to the above features, by processing the through hole at the central part in a spiral shape and fitting it with the runner rail of the spiral rod, the stability of the movement of the curtain runner on the runner rail can be ensured due to no gap being generated in the through hole, and by rotating the runner rail of the spiral rod around the 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

Figure 2

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Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

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Figure 14

Figure 15

Figure 16

Mode for Carrying Out 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 be described below with reference to the accompanying drawings. As shown in Fig. 1, the perforated curtain runner body 1 is composed of a substantially rectangular parallelepiped body member 5 having a rotary shaft mounting portion 2 at the upper part, a through hole 3 at the central part, and a curtain holding member connecting portion 4 at the lower part, and a curtain holding member (ball clip) 6 fastened to the body member 5 via the curtain holding member connecting portion 4. The rotary shaft mounting portion 2 has a mechanism on both side surfaces of the body member 5 for attaching wheels 7 via rivets (rotary shafts) 8. The wheels 7 rotate in the laying direction of the runner rail 10 to assist the smooth movement of the curtain runner body 1. The through hole 3 provided at the central part is a hole having a size equal to or larger 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 has the function of connecting the curtain runner body 1 and the runner rail 10. The curtain holding member connecting portion 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 inclination of the curtain attachment location. Further, the curtain holding member (pole clip) 6 is a member for fixing the curtain body 12 by sandwiching the curtain body 12 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 body 1.

[0018] Regarding the shape of the body member 5 As shown in FIGS. 2(a) and 3, the body member 5 has different functions in the upper, central, and lower portions. The upper rotation shaft mounting portion 2 has a shape in which a cylinder is laid horizontally. The central portion has a rectangular parallelepiped shape with a cylindrical through-hole 3 extending from the front to the back. The lower portion has a substantially rectangular parallelepiped shape with a part of the bottom periphery recessed so that the body member 5 and the curtain holding member 6 can be overlapped and fastened by a connecting member such as a bolt or a nut. It can be said that the shape of the body member 5 is a combination of these. Therefore, "the wheel 7 when attached to the upper rotation shaft mounting portion 2 does not obstruct the progress of the curtain runner body 1 with respect to the laying direction of the runner rail 10 passed through the through-hole 3 in the central portion", and "the curtain holding member 6 fastened to the curtain holding member connection portion 4 can be inclined in a direction perpendicular to the laying direction of the runner rail 10". As long as the shape includes these two essential functions, the shape of each member or the body member 5 does not necessarily have to be a substantially rectangular parallelepiped or a substantially cylindrical shape. Also, the members do not have to be integrated from the beginning. For example, as shown in FIG. 2(b), it may be cut parallel at the position of the diameter of the through-hole 3, and unevenness may be provided at the joint portion of the divided members, and a fitting structure may be provided.

[0019] Regarding the rotation shaft mounting portion 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 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 sandwich and fix the curtain body 12 via a rod-shaped member (curtain pole) 11, and has a function of moving the curtain body 12 in accordance with the movement of the curtain runner main body 1. Although it is also possible to use a hook as the curtain holding member 6, provide hook holes in the body member 5 as the curtain holding member connection portion 4, and hold the curtain body 12, when the area of the curtain body 12 is large, the central portion is likely to bend. Therefore, it is desirable to appropriately select the holding method depending on the application.

[0024] Example (1) of a curtain opening / closing device using the perforated curtain runner according to the present invention The operation of a curtain opening / closing device using the perforated curtain runner according to the present invention and having a round rack as a runner rail will be described below with reference to the accompanying drawings. FIGS. 8 and 9 illustrate, as viewed from the upper surface side, a state in which the curtain opening / closing device according to Example 1 is installed such that the curtain is horizontal, assuming installation in a void portion of a house. The curtain opening / closing device includes a curtain rail 14 having a substantially inverted U shape in plan view fixed along a wall surface, two rows of round racks (runner rails) 17a and 17b having a substantially inverted U shape in plan view passing through the inside of the cross section of the curtain rail 14, stopper members 19a at the starting point and 19b at the ending point for the substantially inverted U-shaped round racks, a plurality of curtain runner main bodies 1 on the round racks, and a gear 20 which is a power generation device. The round racks 17a and 17b are laid along the upper and lower edges of a horizontal plane located on two parallel horizontal lines in a substantially reverse U-shaped configuration, and have the function of transmitting the power generated by the gear 20 to the round racks 17a and 17b. The plurality of curtain runner bodies 1 provided on the gear belt are located at two parallel horizontal lines in a substantially reverse U-shaped configuration, and are arranged such that the selection of inside or outside is different at the upper and lower parts only on either the inner round rack 17a or the outer round rack 17b. The through hole 3 in the central part is connected by penetrating the round rack 17a or 17b. Also, as shown in FIG. 10, the curtain rail 14 located on two parallel horizontal lines in a substantially reverse U-shaped configuration has a space inside for accommodating the inner round rack 17a and the outer round rack 17b. At the lower part of one of the round racks connecting the curtain runner body 1, there is a groove with a width through which the curtain runner body can pass, in accordance with the movable range of the curtain runner body 1. The starting wheel stopper member 19a is provided at the corner of the substantially reverse U-shaped curtain rail, and the ending wheel stopper member 19b is arranged and fixed at the ends of the round racks 17a and 17b when the curtain of the curtain opening and closing device is closed, and acts as a stopper for the curtain runner body. The gear 20 is installed at the central part of the vertical line in the substantially reverse U-shaped configuration of the gear belt, and is installed such that the inner round rack 17a and the outer round rack 17b are in contact simultaneously. As shown in FIG. 9, when the gear 20 rotates forward, the upper outer round rack 17a and the lower inner round rack 17b advance inside the curtain rail 14 in the direction of the ending wheel stopper member 19b, and when the gear 20 rotates reversely, they advance in the direction of the starting wheel stopper member 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 reciprocally rotates and propels on the round racks 17a and 17b, and functions to pull or push back the other unfixed curtain runner bodies 1. 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 where the curtain body opens and closes corresponds to two parallel horizontal lines in the shape of an inverted U of the round rack (runner rail). It can be freely set as long as it is within the range where the round rack (runner rail) can be extended. In FIG. 9, it is assumed that the curtain body 12 moves to the end point of the curtain rail 14 covering the present device. The starting point stopper member 19a is provided at the corner of the curtain rail in the shape of a substantially inverted U, and acts as a stopper for the curtain runner main body 1, and has the purpose of preventing the curtain runner main body 1 from coming into contact with the gear 20 and stopping the gear 20. The end point stopper member 19b is arranged and fixed at the ends of the round racks 17a and 17b when the curtain is closed in the curtain opening and closing device, and has the purpose of preventing the curtain runner main body 1 from advancing on the curtain rail beyond the installation range of the curtain. Therefore, as long as it satisfies the purposes of "being outside the range where the curtain body is desired to move among the two parallel horizontal lines in the shape of an inverted U" and "the curtain runner main body 1 not coming into contact with the gear 20" described above, the arrangement of the stopper members is not limited to this. However, since the curtain runner main body 1 described later is preferably connected to a position on the runner rail where the facing curtain runners are orthogonal, it is desirable to arrange the starting point stopper members 19a and the end point stopper members 19b on a straight line that is orthogonal. The stopper member generally assumes a curtain stopper attached to the curtain rail, but there is no limitation on the shape as long as it is a member that can prevent the intrusion of the curtain runner moving on the round rack (runner rail) and can be fixed to the installation location.

[0027] Regarding the installation of the curtain runner (1) A plurality of the curtain runner main bodies 1 connected to the round rack in Example 1 are at the positions of two parallel horizontal lines in the shape of a substantially inverted U of the round rack, and are connected to only one of the inner round rack 17a and the outer round rack 17b, with different selections of upper or lower and inner or outer. This is because if the connections are made between the outer sides or the inner sides, they will be connected on the same round rack, and the advancing directions of the facing round racks will be opposite, resulting in the inability to open and 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 FIG. 10, the curtain rail 14 positioned on two parallel horizontal lines in a substantially inverted U-shape has a space inside for accommodating the inner round rack 17a and the outer round rack 17b. At the lower part of one round rack (outer round rack 17b) connecting the curtain runner main body 1, there is a groove with a width through which the curtain runner main body can pass, according to the movable range of the curtain runner main body 1. The lengths of the round racks 17a and 17b are set such that when the end 18a of the round rack exceeds the gear 20 when the curtain of the curtain opening and closing device in FIG. 9 is closed, the round racks 17a and 17b will come off the gear 20. Therefore, it is desirable to set the end 18a of the round rack to come to a position in front of the gear 20. Also, the position where the curtain runner main body 1 closest to the end stop member 19b at the end point is fixed to the round racks 17a and 17b is preferably connected closer to the front than the end 18b of the round rack, which is the other end of the end 18a of the round rack. If connected too far in front, the round rack 17a or 17b will hang down from the groove provided in the curtain rail 14 towards the end stop member 19b side at the end point. Therefore, it is desirable to connect it in contact with the end 18b of the round rack. Also, since the curtain opening and closing device according to this embodiment has a curve at the corner of the curtain rail, it is desirable that the power transmission member of the gear 20 be made of a material such as resin that curves according to the curve. Regarding the selection of the power transmission member, in addition to the round rack 17, it is also possible to use a gear belt or a chain, etc. However, since one side of the gear belt is configured in a flat shape, when it curves at the curve in the corner of the curtain rail, the gear belt is likely to be twisted. Therefore, it is desirable to use a round rack that is less likely to be twisted due to the curve.

[0030] Regarding the power transmission device In order to open and close the curtain body 12 connected to the plurality of curtain runner bodies 1 in parallel, it is necessary to move the curtain runner body 1 connected to the inner round rack and the curtain runner body 1 connected to the outer round rack in the same direction and at the same speed. In this embodiment, the round racks 17a and 17b have the function as a power transmission device, and transmit the force generated by the rotation of the gear 20 which is a power generation device efficiently in the same direction and with the same magnitude. The power transmission device is not limited to a gear and a round rack, a gear and a gear belt or a chain, and sprockets and a roller chain, pulleys and a belt, etc. may also be used.

[0031] Regarding the power generation device The power for rotating the gear 20 which is a power generation device is assumed to be rotated by a motor and a member that can be remotely controlled for on / off. However, there is no limit to the power generation method as long as it includes manual or electric power, such as a method of directly transmitting the force generated by pulling or rotating a bar or a chain used for opening and closing a general roll screen to the gear. Also, when the installation location of the power generation device is at the midpoint of the vertical line in the shape of a substantially inverted U of the round rack in FIGS. 8 and 9, it is desirable because the movement is stable in order to transmit an equal force to the inner round rack 17a and the outer round rack 17b, a certain size of the gear 20 can be ensured, and the distance that the runner rail advances in one rotation of the gear 20 can be increased, but this is not the only case.

[0032] Example (2) of a curtain opening and closing device using the perforated curtain runner according to the present invention An example (2) of a curtain opening and closing device using the perforated curtain runner according to the present invention, using a runner rail as a spiral rod and the curtain runner having a spiral groove in the through hole, will be described below with reference to the accompanying drawings. FIG. 11 illustrates, as seen from the upper surface side, a state in which the curtain opening and closing device according to Example 2 is installed such that the curtain is horizontal, assuming installation in the atrium of a house. 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. Also, connect the starting point of the runner rail 23 of the screw rod to the axis at the center of the flat belt pulley 24, directly transmit the rotation of the flat belt pulley 24 to the runner rail 23 of the screw rod, connect the upper and lower flat belt pulleys 24 with a flat belt 25 to rotate the runner rails 23 of the upper and lower screw rods in the same direction and at the same speed, and connect a power generation device that rotates manually or electrically to one of the upper or lower flat belt pulleys 24. Then, arrange the curtain runner bodies 1 installed in plurality on the runner rails 23 of the upper and lower screw rods at equal intervals, and sandwich a curtain pole 11 orthogonal to the runner rail of the screw rod together with a curtain body 12 to fix the curtain body 12. By rotating the power generation device connected to the flat belt pulley 24, the runner rails 23 of the upper and lower screw rods rotate through the flat belt pulley 24, and the curtain body 12 can be opened and closed by the movement of the curtain runner body 27 having a spiral groove on the inner peripheral surface of the through hole.

[0033] Regarding installation on a horizontal plane and an inclined plane When installing the curtain opening and closing device of Example 2 to close a horizontal plane, lay two runner rails 23 of the screw rod parallel to the floor and use it in a state where the inclination angle of the curtain runner is not adjusted (see FIG. 1). When installing on an inclined plane, the same installation method as that of Example 1 (0021) shown in FIG. 7 can be used.

[0034] Regarding the rod-shaped male screw curtain rail The runner rail 23 of the spiral rod is rod-shaped and has its surface processed in a spiral shape. It fits a curtain runner body 27 whose inner peripheral surface of the through hole 3 is processed in a spiral shape. By rotating the runner rail 23 of the spiral rod clockwise or counterclockwise, it has the function of spirally rotating and propelling the curtain runner 27. The screw diameter is set according to the weight of the curtain to be installed. Regarding the pitch, if it is a fine pitch, the moving distance of the curtain runner per rotation becomes small. When aiming for a wide range of curtain installation, the parallel pitch is more desirable for shortening the time required for opening and closing. Also, by using members that conform to unified standards such as JIS standards as the runner rail, maintenance such as component replacement can be easily carried out, and there is the merit that no special cost is required for procuring members and mounting tools.

[0035] Regarding the position (stopping member) where the curtain body opens and closes In Example 2, the position where the curtain body 12 opens and closes can be freely set as long as it is within the length range of the two runner rails 23 of the spiral rod laid along the upper and lower edges of the horizontal plane which is the installation surface. In FIG. 11, assuming that the curtain body 12 moves from the starting point to the ending point of the runner rail 23 of the spiral rod, it is desirable to arrange the starting stopping member 19a at the starting point of the runner rail 23 of the spiral rod and the ending stopping member 19b at the ending point of the runner rail 23 of the spiral rod on a line perpendicular to the two runner rails 23. These stopping members 19a and 19b are for the purpose of preventing the curtain runner body 1 moving forward or backward on the runner rail 23 of the spiral rod from falling off the runner rail 23 of the spiral rod. As long as it satisfies the conditions of "arranging the starting stopping member 19a at the starting point of the range where the curtain body 12 moves" and "arranging the ending stopping member 19b at the ending point", it is not limited to this. Also, the stopping members 19a and 19b are not limited as long as they are members that prevent the intrusion of the curtain runner body 1 moving on the runner rail 23 of the spiral rod.

[0036] Regarding the installation of the curtain runner At the location where the curtain is to be installed, it is desirable to fix the curtain runner body 1 closest to the wheel stopper member 19a at the starting point to the wheel stopper member 19a at the starting point so that the curtain can be firmly closed from end to end. The method of fixing the curtain runner body 1 to the wheel stopper member 19a at the starting point is not limited to methods such as connecting with a magnet or a hook, having a structure that incorporates it inside the wheel stopper member 19a, or attaching a member that fits into the wheel stopper member 19a instead of the wheel 7 to the rotation shaft mounting portion 2 of the curtain runner. Then, as the curtain runner body 1 closest to the wheel stopper member 19b at the end point, a curtain runner body 27 with a spiral groove formed on the inner peripheral surface of the through hole is arranged. When the runner rail 23 of the spiral rod is rotated by fitting the curtain runner body 27 and the runner rail 23 of the spiral rod, the curtain runner body 27 spirally rotates and advances on the runner rail 23 of the spiral rod. Therefore, 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 peripheral surface of the through hole or are not fixed to the runner rail 23 of the spiral rod. Next, regarding the mounting positions of the curtain runners not fixed to the runner rail 23 of the spiral rod, it is desirable that they be equally spaced at regular intervals as in the case of normal curtain installation, and that the facing curtain runners be at positions where they are orthogonal. The method of connecting the curtain runners facing each other with the curtain pole 11 as shown in Fig. 11 is a method that easily holds the desired positions of the curtain runners, but the connection method is not limited to this.

[0037] Regarding the power generation device and the power transmission device In order to apply a spiral propulsive force to the curtain runner body 27 having a spiral groove on the inner peripheral surface of the through hole 3, as a method of rotating the runner rail 23 of the spiral rod, in the second embodiment, 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, and 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 to rotate the runner rails 23 of the upper and lower spiral rods in the same direction and at the same speed. However, there is no limitation on the power transmission method other than the mechanism using a V-belt or a chain. Further, the power for rotating the flat belt pulley 24 which is a power generation device is assumed to be rotated by a motor and a member capable of remotely controlling on / off. However, there is no limitation on the power generation method, including manual or electric, such as a method of directly transmitting the force generated by pulling or rotating a bar or a chain used for opening and closing a general roller screen to a gear.

[0038] Example (3) of a curtain opening / closing device using a perforated curtain runner according to the present invention As an example (3) of a variation of the curtain opening / closing device according to the second embodiment, it will be described below with reference to the accompanying drawings. FIG. 12 shows a curtain opening / closing device in which the end stopper member 19b of the curtain opening / closing device according to the second embodiment is replaced with a runner rail connecting member 28, and the length of the runner rail of the spiral rod is extended through the runner rail connecting member 28, as viewed from the upper surface side in a state where the curtain is installed to be horizontal. The runner rail connecting member 28 is a member that screws into the end of the runner rail 23 of the screw rod, and is a member for connecting the installed runner rail 23a of the screw rod and the runner rail 23b of the other connecting screw rod. It aims to easily extend the runner rail of the curtain opening and closing device according to the second embodiment, and / or increase the variations in the opening and closing direction of the curtain. Embodiment 3 shown in FIG. 12 screws the runner rail connecting member 28 into the connecting end portions of the runner rail 23a of the screw rod and the runner rail 23b of the other connecting screw rod, and connects the runner rail connecting members so that the runner rail 23b of the other connecting screw rod has a spiral groove in the opposite direction to the installed runner rail 23a of the screw rod. With such a structure, in addition to extending the length, the curtain runner body 27 having a spiral groove on the inner peripheral surface of the through hole 3 connected to the runner rail 23b of the other connecting screw rod moves forward or backward in the opposite direction to the curtain runner body 27 connected to the installed runner rail 23a of the screw rod, and the curtain related to the curtain opening and closing device can be structured to open from the center to the left and right and close from both ends to the center in a double-opening structure.

[0039] Regarding the connection method of the runner rail connecting members FIG. 13 is a perspective view showing an example of a method for connecting a runner rail, a runner rail connecting member, and the runner rail connecting members to each other. The shape of the runner rail connecting member 28 is cylindrical, and it is provided with a through hole 29 penetrating from the center of the left side surface to the center of the right side surface, a perforation 31 for connecting the runner rail on the upper surface, a perforation 33 for connecting the hexagonal shaft, and a hexagonal recess 35 having a size larger than the diameter of the through hole 29 at the right end portion. The through hole 29 is for inserting the installed runner rail 23a of the screw rod from the left side surface of the runner rail connecting member 28, the hexagonal recess 35 is for inserting the hexagonal shaft 30 from the right side surface, and through the runner rail connecting bolt 32 from the perforation 31 for connecting the runner rail, the inserted runner rail 23a and the runner rail connecting member 28 are screwed together, and through the hexagonal shaft connecting bolt 34 from the perforation 33 for connecting the hexagonal shaft, the inserted hexagonal shaft 30 and the runner rail connecting member 28 are screwed together. Next, regarding the end portion of the runner rail 23b to be connected as well, the runner rail connecting member 28 is screwed so that the hexagonal recesses 35 face each other, and as shown in FIGS. 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 with the hexagonal shaft 30 sandwiched therebetween to connect the runner rails. When connected by this method, not only is the connection strong, but since the diameter of the hexagonal recess 35 is larger than the diameter of the through hole 29, by loosening the runner rail connecting bolt 32 and the hexagonal shaft connecting bolt 34, the runner rail connecting member 28 can be shifted in the direction opposite to the hexagonal recess 35 side, and there is an advantage that the connection of the runner rail can be easily released. Also, regarding the selection of members and the connection method, such as using the hexagonal shaft 30 used for connection as a linear shaft and making the recess of the runner rail connecting member circular, there is no limitation thereto.

[0040] Regarding the relationship between the direction of the spiral groove of the runner rail and the opening and closing direction of the curtain When the runner rail 23 is 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 connecting spiral rod rotate in the same direction as the rotation direction of the flat belt pulley 24. Therefore, if the directions of the spiral grooves of the two runner rails are the same, the curtain runner bodies 27 connected to the runner rails 23a and 23b also propel in the same direction. On the other hand, when the runner rail 23b of the other connecting spiral rod is connected so as to be opposite to the spiral groove of the runner rail 23a of the installed spiral rod, the runner rail 23 rotates in the same direction, but the connected runner rail bodies 27 propel in opposite directions respectively. The embodiment of FIG. 12 is a double-opening curtain opening and closing device in which the directions of the spiral grooves are connected differently, opening from the center to both ends and closing from both ends to the center, but it can be selected according to the environment of the installation location and the like.

Explanation of Signs

[0041] 01 Perforated curtain runner body 02 Rotating shaft mounting part 03 Through hole 04 Curtain holding member connection part 05 Body member 06 Curtain holding member 07 Wheel 08 Rivet (rotating shaft) 09a Tilt angle adjustment bolt 09b Tilt angle adjustment nut 10 Runner rail 11 Curtain pole 12 Curtain body 13a Convex member 13b Connecting member 14 Curtain rail 14a Groove of curtain rail 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 substantially cylindrical shape, and has a rotation shaft mounting portion at the upper part, a through hole at the central part, and a curtain holding member connection portion at the lower part. The rotation shaft mounting portion can mount wheels via rotation shafts on both side surfaces. The through hole at the central part is a hole with a size 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 connection portion connects a curtain holding member to the lower part 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. A curtain runner.

2. In the curtain runner according to Claim 1 above, A substantially U-shaped or substantially inverted U-shaped curtain rail is fixed along the wall surface, and two rows of runner rails in a substantially U-shaped or substantially inverted U-shaped shape in plan view passing through the inside of the cross-section of the curtain rail, A wheel stop member at the starting point and the ending point provided on the substantially U-shaped or substantially inverted U-shaped runner rail and placed on the curtain rail, A plurality of curtain runner bodies held by the runner rail passing through the through hole at the central part and placed on the curtain rail, And a power generation device. The runner rail is laid along the upper and lower or left and right edges of the installation surface of the wall, with the two rows of runner rails located on two parallel horizontal lines in a substantially U-shaped or substantially inverted U-shaped shape. It has a function of transmitting the power generated by the power generation device 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 at the central part are located at the positions of two parallel horizontal lines in a substantially U-shaped or substantially inverted U-shaped shape, and are installed on only one of the inner runner rail and the outer runner rail, and further, the selection of inner or outer is different in the vertical or horizontal direction. The power generation device is installed so that the inner runner rail and the outer runner rail come into contact simultaneously. The wheel stop member at the starting point is provided at the corner of the substantially U-shaped or substantially inverted U-shaped curtain rail and acts as a stopper for the curtain runner body. The wheel stop member at the ending point is arranged and fixed at the end of the runner rail. The power generation device reciprocally rotates and propels the runner rail along the curtain rail. A curtain opening and closing device for opening and closing a curtain body fixed through the curtain runner body. Curtain opening and closing device.

3. In the curtain runner according to claim 1, A curtain rail having a substantially U-shape or a substantially reverse U-shape in plan view is fixed along a wall surface, and two runner rails passing through the inside of the cross-section of the curtain rail; Wheel stop members provided at the starting point and the ending point of the two runner rails placed on the curtain rail and held by the runner rail passing through the through-hole at the center of the curtain runner body; A plurality of curtain runner bodies placed on the curtain rail and held by the runner rail passing through the through-hole at the center; Rotating members respectively connected to the starting points of the two runner rails; A power generating device connected to one of the rotating members; Comprising a power transmission device connecting the rotating members to each other, The two runner rails are screw rods or male screw rods, and are laid parallel along the upper and lower or left and right edges of the installation surface of the wall where the curtain rail is fixed, The wheel stop members at the starting point and the ending point are arranged so as to sandwich the plurality of curtain runner bodies, The curtain runner body is connected so that the through-hole at the center is penetrated by the runner rail, As the curtain runner closest to the ending point of the runner rail, a curtain runner body having a spiral groove or a female screw groove on the inner peripheral surface of the through-hole is connected, The rotating member has a function of rotating the runner rail forward or backward, The power transmission device has a function of interlocking with and transmitting the rotation direction and the 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 having a spiral groove or a female screw groove on the inner peripheral surface of the through-hole spirally rotates and propels the runner rail as the runner rail rotates, and pulls or pushes back other curtain runner bodies to open and close 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, Having runner rail connecting members at the end on the ending point side and the end on the starting point side of the two runner rails. The runner rail connecting member is a member that screws into the end of a runner rail of a spiral rod or male screw rod, and is a member for connecting the runner rail of the installed spiral rod or male screw rod to the runner rail of the other spiral rod or male screw rod to be connected. Screw the runner rail connecting member into each of the connecting end portions of the runner rail of the spiral rod or male screw rod and the runner rail of the other connecting spiral rod or male screw rod. Connect the two runner rails through the runner rail connecting member. By selecting whether the spiral groove or male screw groove of the runner rail of the other connecting spiral rod or male screw rod is a right-handed spiral or a left-handed spiral. A curtain runner body having a spiral groove or female screw groove formed on the inner peripheral surface of a through hole connected to the runner rail of the other connecting spiral rod or male screw rod. Select whether it is in the same direction or the opposite direction as the curtain runner body having a spiral or female screw groove formed on the inner peripheral surface of the through hole connected to the installed spiral rod or male screw rod runner rail, and can be rotated and propelled in a spiral manner. A curtain opening and closing device.

5. The curtain opening and closing device according to claim 4, The shape of the runner rail connecting member is cylindrical, and has a through hole penetrating from the center of the left side surface to the center of the right side surface, a perforation for connecting the runner rail and a perforation for connecting a rod-shaped member on the upper surface, and a recess having a size larger than the diameter of the through hole at the end of the right side surface. Insert the installed spiral rod runner rail into the left side surface of the runner rail connecting member. Insert the rod-shaped member into the recess 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 perforation. 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 perforation, and Regarding the end of the other connecting runner rail as well, screw the runner rail connecting member so that the recesses face each other. The runner rail connecting member at the end of the runner rail and the runner rail connecting member at the end of the other runner rail are screwed together so as to sandwich the rod-shaped member, and the runner rails can be connected. A curtain opening and closing device.

Images