JP7444717B2 - screen device - Google Patents

Description

The present invention relates to a screen device that includes a screen that is attached to a winding shaft so that it can be fed out and rolled up.

2. Description of the Related Art Conventionally, there has been a screen device that rolls up a screen such as a net for insect prevention, light shielding, heat insulation, blindfolding, etc. (see, for example, Patent Document 1). This type of screen device includes a screen that is attached to a winding shaft so that it can be fed out and rolled up, and a pair of guide rails that guide the sliding of the screen. A fastener member is provided on the side edge of the screen, so that the screen is slidably inserted into the slit groove formed in each guide rail while being prevented from coming off. For example, in a horizontal pulling type in which the screen is slid left and right, the fastener members are attached to the upper and lower edges of the screen.

Japanese Patent Application Publication No. 2017-179843

By the way, in order to ensure smooth sliding of the screen in the above-mentioned roll-type screen device, it is necessary to prevent the fastener member from being dragged by the opening surface of the slit (stopper part for preventing slippage) during normal use. There is. Therefore, it is preferable that the fastener member is disposed with a certain gap from the stopper part.

However, in such a configuration, the fastener member moves when the screen receives a load due to strong wind or the like, and the gap may vary in the entire length direction of the fastener member. If the screen is wound onto the take-up shaft in this state, the screen may move in the axial direction of the take-up shaft during winding, which is a so-called winding misalignment. If the screen that has been rolled out is unrolled from the take-up shaft, there is a concern that the unfolded screen may be wrinkled or bent at various locations, or that the screen may not be accurately held on the guide rail and may fall off.

The present invention has been made in consideration of the problems of the prior art described above, and an object of the present invention is to provide a screen device that can suppress the occurrence of winding misalignment of a screen when it is wound onto a winding shaft.

A screen device according to one aspect of the present invention includes a take-up shaft, and a pair of edges that are attached to the take-up shaft so as to be able to pay out and take up the wind-up shaft, and that extend along the pay-out direction and the wind-up direction with respect to the take-up shaft. The screen has a screen each provided with a fastener member, a stopper portion that prevents the fastener member from coming off, and a slit groove through which the edge of the screen is slidably inserted, and the screen is slidable. A screen device comprising: a pair of guide rails that hold the screen, the screen device being provided between the winding shaft so as to be continuous from the stopper portion of at least one of the guide rails, and on which the fastener member is slidable. The present invention is characterized in that it includes an auxiliary guide section, and the auxiliary guide section has a first tapered section that is inclined toward the outside and gradually moves away from the other guide rail in the winding direction.

According to the present invention, it is possible to suppress the occurrence of winding misalignment of the screen when winding it around the winding shaft.

FIG. 1 is a longitudinal cross-sectional view of a fitting equipped with a screen device according to a first embodiment. It is a perspective view of a screen device. FIG. 2 is a perspective view showing the configuration of a winding shaft of the screen device and its surroundings. FIG. 3 is a front view of the screen device. It is a longitudinal cross-sectional view of the screen device at a position corresponding to a guide rail. It is a longitudinal cross-sectional view of the screen device at a position corresponding to an auxiliary guide part. It is a perspective view of a guide rail and an auxiliary guide component. FIG. 3 is a cross-sectional perspective view of the auxiliary guide component. It is a figure which looked at an upper frame, a guide rail, and an auxiliary guide part from inside a frame. FIG. 6 is a side cross-sectional view schematically showing the guiding operation of the fastener member by the auxiliary guide section. FIG. 7 is a side cross-sectional view schematically showing a guiding operation of a fastener member by an auxiliary guide section according to a modification. FIG. 3 is a perspective view of a screen device according to a second embodiment. FIG. 3 is a side sectional view of the screen device. FIG. 3 is a perspective view of one cap of the storage box and its surrounding area. FIG. 3 is a cross-sectional view of the screen device at a position corresponding to a guide rail. FIG. 3 is a cross-sectional view of the screen device at a position corresponding to an auxiliary guide portion. FIG. 3 is a front sectional view schematically showing the guiding operation of the fastener member by the auxiliary guide section.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the screen device according to the present invention will be described in detail with reference to the accompanying drawings.

First, a screen device 10 according to a first embodiment will be described. As shown in FIG. 1, the screen device 10 of this embodiment is installed on the indoor side of a window device 12, and together with the window device 12 constitutes a fitting 16 that opens and closes an opening 14a formed in a building frame 14. . The screen device 10 may be installed on the outdoor side of the window device 12. In FIG. 1, a casement window is illustrated as the window device 12, but the window device 12 may be a sliding window, a hinged window, or the like. The screen device 10 may be installed on the indoor side or the outdoor side of a door, etc., instead of the window device 12.

The screen device 10 is installed for insect prevention, light shielding, heat insulation, blindfolding, and the like. As shown in FIGS. 1 and 2, the screen device 10 of this embodiment is of a horizontal pulling roll type that can pay out and wind up a screen 18 made of net, fabric, etc. in the left and right direction, and the screen 18 is a screen door. I am using a special net.

As shown in FIGS. 1 to 4, the screen device 10 includes a frame 20 and a screen mechanism section 22 supported by the frame 20.

The frame body 20 is an attachment part of the screen device 10 to the building frame 14 and supports the screen mechanism part 22. The frame body 20 forms a rectangular opening by framing an upper frame 24 and a lower frame 25, which are a pair of upper and lower horizontal frames, and a storage box 26 and a side frame 27, which are a pair of left and right vertical frames. It is something.

In this application, the expected direction refers to the indoor/outdoor direction of the screen device 10, that is, the direction from the indoor to the outdoor, or the opposite direction (direction indicated by arrow Z in the figure). The prospective surface refers to a surface extending along the prospective direction. The finding direction is the direction perpendicular to the expected direction, and in the case of vertically long storage boxes 26 and side frames 27, it refers to the left-right direction (direction indicated by arrow X in the figure) perpendicular to the longitudinal direction. In the case of the upper frame 24 and lower frame 25 that are elongated in the left-right direction, this refers to the vertical direction (direction indicated by arrow Y in the figure) orthogonal to the longitudinal direction thereof. The locating surface refers to the surface along the locating direction. The inside (inner peripheral side) of the frame-like member refers to the inner part of the frame 20. The outside (outer peripheral side) of the frame member refers to the outside portion of the frame 20 on the building frame 14 side. The in-frame direction refers to a direction from the outside of the frame 20 to the inside of the frame, and the out-of-frame direction refers to a direction opposite to the in-frame direction.

As shown in FIGS. 2 and 5A, the upper frame 24 is an extruded member made of a metal material such as aluminum or a resin material. The upper frame 24 has a rectangular hollow part 24a provided on the outside of the frame, and an opening groove 24b provided on the inside of the hollow part 24a. The hollow part 24a becomes a connecting part with the storage box 26 and the side frame 27.

The opening groove 24b is a groove portion having a substantially U-shaped cross section and opening toward the inside of the frame (downward), and the upper edge of the screen 18 is disposed therein. A guide rail 28 and an auxiliary guide component 30 (see FIG. 5B), which will be described later, are inserted and supported in the opening groove 24b. The opening groove 24b is formed by a frame inner side-looking surface of the hollow portion 24a, and a pair of protruding pieces 24c, 24c that respectively protrude in the frame direction from both end portions of this frame-inner side looking side in the viewing direction. On the inner surface of each protruding piece 24c, that is, on the surface facing inward of the opening groove 24b, protrusions 24d protruding in directions facing each other are formed, respectively.

Since the lower frame 25 has the same structure as the upper frame 24 except that it is vertically symmetrical, it will be given the same reference numeral as the upper frame 24 and a detailed explanation thereof will be omitted. The opening groove 24b of the lower frame 25 is open toward the inside of the frame (upward), and the lower edge of the screen 18 is disposed therein. Into the opening groove 24b of the lower frame 25, a guide rail 29 and an auxiliary guide component 31, which will be described later, are inserted and supported.

As shown in FIGS. 2 to 4, the storage box 26 is a cylindrical body in which a winding shaft 32 for winding up the screen 18 is stored in a rotatable state around the shaft. The storage box 26 includes a side wall 26a and a door body 26b that extend in the vertical direction, and caps 26c and 26d that cover the upper and lower openings of the storage space S surrounded by the side wall 26a and the door body 26b.

The side wall 26a and the door body 26b are extruded shapes made of a metal material such as aluminum or a resin material, for example. The side wall 26a has a substantially L-shaped cross section. The door body 26b is a curved plate that opens and closes the opening of the side wall 26a (see FIGS. 2 and 8). The door body 26b is attached to the side wall 26a via a hinge portion 26e extending in the vertical direction so as to be vertically openable. The storage space S has a substantially rectangular cross-sectional shape with a rounded corner. The winding shaft 32 is stored in the storage space S and extends in the vertical direction.

As shown in FIG. 3, the upper cap 26c is attached to the upper edge of the side wall 26a and closes the upper opening of the storage space S. As shown in FIG. The cap 26c also has the function of supporting the bearing component of the winding shaft 32 on its lower surface. The cap 26c is a molded part made of resin. The cap 26c has a cover piece 34 and a mounting piece 35.

The cover piece 34 is provided at the indoor end of the frame inner side of the cap 26c, and faces the edge end face of the upper frame 24. The vertical dimension of the cover piece 34 is approximately the same as the width of the upper frame 24. The cover piece 34 comes into contact with the end surface of the upper frame 24 and covers a part of the indoor side facing surface of the upper frame 24. The attachment piece 35 is a plate piece that protrudes from the upper surface of the inner side of the frame of the cap 26c toward the edge end surface of the upper frame 24. A wedge-shaped locking piece 35a is formed protruding from the upper surface of the distal end side of the mounting piece 35. The attachment piece 35 is inserted into the hollow part 24a from the edge of the upper frame 24 (see FIGS. 5A and 5B), and the locking piece 35a is inserted into the inner peripheral surface of the hole 24e formed on the outer side of the upper frame 24. is locked. By connecting the mounting piece 35 to the upper frame 24, the storage box 26 is connected to the upper frame 24.

As shown in FIG. 3, the lower cap 26d has the same structure as the upper cap 26c except that it has a vertically symmetrical structure, so the same reference numerals as the cap 26c will be given and a detailed description thereof will be omitted. do. The cap 26d is attached to the lower edge of the side wall 26a and closes the lower opening of the storage space S. The cap 26d also has the function of supporting the bearing component of the winding shaft 32 on its upper surface. The cap 26d is a resin molded part. The cap 26d also has a cover piece 34 and a mounting piece 35, and the mounting piece 35 is inserted into the hollow part 24a of the lower frame 25 (see FIGS. 5A and 5B), and the locking piece 25a is attached to the outer surface of the lower frame 25. It is locked in a hole 24e (not shown) formed in. Thereby, the storage box 26 is connected to the lower frame 25 via the cap 26d.

As shown in FIGS. 2 and 4, the side frame 27 is an extruded member made of a metal material such as aluminum or a resin material. The side frame 27 can hold the movable crosspiece 36 of the screen mechanism section 22 in a fully closed position. The side frame 27 has a storage groove 27a that opens toward the inside of the frame, and a cover piece 27b that protrudes toward the inside of the frame from the indoor side finding surface.

The storage groove 27a is a groove portion with a rectangular cross section that opens toward the inside of the frame on the side frame 27 facing inside the frame. A side edge portion of the movable crosspiece 36 can be inserted into and removed from the storage groove 27a. The cover piece 27b is a plate piece that protrudes toward the inside of the frame from the indoor end of the side frame 27 facing inside the frame. The cover piece 27b is a cover that covers a gap between the movable crosspiece 36 whose side edge portion is inserted into the storage groove 27a and the inner side of the side frame 27. Note that the upper frame 24 and the lower frame 25 are provided with latch members 37 that removably hold the upper and lower ends of the movable crosspiece 36 that is in the fully closed position when it abuts against the side frame 27 (see FIG. 4). .

An upper cap 38 that covers the upper edge and a lower cap 39 that covers the lower edge are attached to the side frame 27. The caps 38 and 39 are molded parts made of resin. A pair of attachment pieces 35 similar to those of the caps 26c and 26d are provided on the caps 38 and 39 so as to be perpendicular to each other. The mounting piece 35 of one of the caps 38 and 39 is inserted into a hollow portion (not shown) of the side frame 27 from its edge, and the locking piece 35a is locked with the hole 27c of the side frame 27 (see FIG. 2). As a result, the caps 38 and 39 are attached to the side frame 27. The other mounting piece 35 of the caps 38, 39 is inserted into the hollow part 24a of the frames 24, 25 from the edge, and the locking piece 35a is locked with the hole 24e of the frame 24, 25 (see FIG. 2). Thereby, the side frame 27 is connected to the upper frame 24 and the lower frame 25 via the caps 38 and 39.

Next, the screen mechanism section 22 will be explained. The screen mechanism section 22 is composed of the screen 18 and its peripheral parts. As shown in FIGS. 2 to 5B, the screen mechanism section 22 includes a screen 18, a winding shaft 32, a movable crosspiece 36, a guide rail 28 and an auxiliary guide component 30 on the upper frame 24 side, and a lower frame 25 side. A guide rail 29 and an auxiliary guide component 31 are provided.

The screen 18 of this embodiment is a screen door net. The screen 18 can be fed out and rolled up in the left-right direction from the storage box 26 toward the side frame 27, thereby opening and closing the opening in the frame of the frame body 20. A base end of the screen 18 is fixed to a winding shaft 32 within the storage box 26. The distal end of the screen 18 is fixed to a movable crosspiece 36 at an opening in the frame of the frame body 20 through a vertically elongated opening 26f (see FIG. 2) formed on the inner side of the frame of the storage box 26. The upper edge of the screen 18 is in a position where it can move forward and backward toward the guide rail 28 and the auxiliary guide component 30 on the upper frame 24 side. The lower edge of the screen 18 is in a position where it can move forward and backward toward the guide rail 29 and the auxiliary guide component 31 on the lower frame 25 side.

As shown in FIGS. 5A and 5B, the screen 18 has fastener members 40 attached to each of its upper and lower edges. The fastener member 40 guides the sliding of the screen 18 with respect to the guide rails 28 and 29 while preventing the net from fraying at the edges of the screen 18. The fastener member 40 includes, for example, a fastener tape 40a and a retaining portion 40b. The fastener tape 40a is a tape-shaped member made of resin or cloth. The fastener tape 40a is attached to the upper and lower edges of the screen 18 and extends to cover the upper and lower edges of the screen 18. The retaining portion 40b is a resin component having a substantially triangular cross section. The retaining portions 40b are provided at the tip of the fastener tape 40a, and are arranged in plural along the edge of the screen 18. The retaining portion 40b is formed to be wider than the thickness of the screen 18 and the fastener tape 40a attached to the surface thereof.

As shown in FIGS. 3 and 4, the winding shaft 32 is a cylindrical component installed vertically within the storage box 26, and is rotatably supported around the shaft. A coil spring 32a is inserted inside the winding shaft 32. The coil spring 32a rotates the winding shaft 32 in the winding direction with its urging force when winding up the screen 18. Further, the coil spring 32a applies tension to the screen 18 when the screen 18 is fed out or at a predetermined open position, thereby suppressing wrinkles.

As shown in FIGS. 2, 4, 5A, and 5B, the movable crosspiece 36 stands between the upper frame 24 and the lower frame 25 so as to be parallel to the winding shaft 32 and the side frame 27, It is movable in the left-right direction along the frames 24 and 25. The tip of the screen 18 is fixed to the movable bar 36. Slide guides 36a are provided at the upper and lower ends of the movable crosspiece 36, respectively. Each slide guide 36a guides the movable crosspiece 36 slidably along the frames 24 and 25. Each slide guide 36a has a substantially U-shaped cross section and opens toward the outside of the frame (see FIGS. 5A and 5B). Each slide guide 36a is interposed in a gap between the guide rails 28, 29 and the opening grooves 24b of the frames 24, 25, with the guide rails 28, 29 being swallowed, respectively. The movable crosspiece 36 can pay out and wind up the screen 18 with respect to the winding shaft 32 by sliding left and right. Reference numeral 36b in FIG. 2 is an operating section for unlocking the movable crosspiece 36 when winding up the screen 18 onto the winding shaft 32.

As shown in FIGS. 5A, 6, and 7, the upper guide rail 28 is installed in the opening groove 24b of the upper frame 24, and holds the upper edge of the screen 18 so as to be slidable along the upper frame 24. ing. The guide rail 28 is, for example, an extruded member made of a metal material such as aluminum or a resin material. The entire length of the guide rail 28 in the longitudinal direction is somewhat shorter than the entire length of the upper frame 24, and the end surface on the winding shaft 32 side is located at a position where the end surface on the winding shaft 32 side of the upper frame 24 is retreated toward the side frame 27 side. (See Figure 4).

The guide rail 28 has a flange portion 28a, a pair of guide pieces 28b, 28b, a slit groove 28c, and a stopper portion 28d, and has a substantially T-shaped cross section.

The flange portion 28a is a plate portion that is formed at the upper part of the guide rail 28 to be wide in the viewing direction. The flange portion 28a is inserted from the edge of the upper frame 24 into a space surrounded by the bottom surface of the opening groove 24b of the upper frame 24 and the protrusions 24d of the left and right protruding pieces 24c, and is locked by each protrusion 24d. . Thereby, the guide rail 28 is attached to the upper frame 24 which is prevented from coming off from the opening groove 24b.

Each guide piece 28b hangs down from the inner side of the frame of the flange portion 28a and is lined up in the direction of view. At the tip (lower end) of each guide piece 28b, a guide plate 28e whose width is widened in the direction of projection is provided. The gap between the guide plates 28e, 28e is narrower than the gap between the other guide pieces 28b, 28b.

The slit groove 28c is formed by a narrow gap formed between the guide plates 28e, 28e. The width of the slit groove 28c in the expected direction is such that the screen 18 and the fastener tape 40a of the fastener member 40 can be slidably inserted thereinto, and the retaining portion 40b cannot be inserted therethrough. A movable space 28f wider than the slit groove 28c is formed on the back side of the slit groove 28c. The movable space 28f accommodates the retaining portion 40b in a state in which it is movable in the frame inward and outward direction (Y direction) and in the sliding direction of the screen 18 (X direction).

The stopper portion 28d is a portion for preventing the retaining portion 40b of the fastener member 40 from coming off from the guide rail 28. The stopper portion 28d is formed by the opening surface (opening edge) of the slit groove 28c on the movable space 28f side, that is, the projected surface of each guide plate 28e on the movable space 28f side.

As shown in FIGS. 5A, 6, and 7, the lower guide rail 29 is installed in the opening groove 24b of the lower frame 25, and holds the lower edge of the screen 18 so as to be slidable along the lower frame 25. are doing. Since this guide rail 29 has the same structure as the upper guide rail 28 except that it is vertically symmetrical, it will be given the same reference numeral as the guide rail 28 and a detailed explanation thereof will be omitted.

As shown in FIGS. 5B to 8, the auxiliary guide component 30 is installed in the opening groove 24b of the upper frame 24 and is continuous with the guide rail 28. The auxiliary guide component 30 is interposed between the guide rail 28 and the winding shaft 32 and passes the upper edge of the screen 18 between the guide rail 28 and the winding shaft 32. The auxiliary guide component 30 is a resin molded component.

The auxiliary guide component 30 includes a mounting portion 30a, a pair of guide pieces 30b, 30b, a flange portion 30c, and an auxiliary guide portion 30d.

The attachment portion 30a is a portion for attaching the auxiliary guide component 30 to the guide rail 28. The attachment portion 30a has a pair of elastic claws 42, 42 in the direction of the projection, and a pair of locking rods 43, 43 in the direction of the projection. The elastic claws 42 and the locking rods 43 are lined up in the inside-outside direction of the frame. Each elastic claw 42 is provided on the outer surface of each guide piece 30b, and protrudes beyond the end surface of the auxiliary guide component 30 on the guide rail 28 side to a position where it overlaps with the finding surface of the guide rail 28. The elastic claw 42 is an elastically deformable plate piece, and has an upward claw-shaped portion formed at its tip. Each locking rod 43 is a rod that protrudes toward the guide rail 28 side in line with the elastic claw 42 .

As shown in FIGS. 6 and 8, in the auxiliary guide component 30, the elastic claw 42 and the locking rod 43 are inserted between the opposing surfaces between the flange portion 28a of the guide rail 28 and the guide plate 28e, so that both It is attached to the guide rail 28 by tensioning between these opposing surfaces. That is, the attachment portion 30a is attached to the guide rail 28 by the elastic claw 42 urging the lower surface of the flange portion 28a and the locking rod 43 being pressed against the upper surface of the guide plate 28e.

Each guide piece 30b has substantially the same cross-sectional shape as each guide piece 28b of the guide rail 28. Each guide piece 30b is continuous with each guide piece 28b to form one rail. Each guide piece 30b forms a part of the flange portion 30c, hangs down from the inner side of the frame of the bottom plate 30e extending along the entire length of the auxiliary guide component 30 in the X direction, and is arranged closely in the direction of the view. At the tip (lower end) of each guide piece 30b, a guide plate 30f whose width is widened in the direction of projection is provided. Each guide plate 30f is continuous with each guide plate 28e of the guide rail 28. Each of the guide pieces 30b and the bottom plate 30e is installed with a portion on the winding shaft 32 side protruding from the edge end surface of the upper frame 24 toward the winding shaft 32 (see FIG. 4).

The flange portion 30c has substantially the same cross-sectional shape as the flange portion 28a of the guide rail 28. The flange portion 30c, together with the flange portion 28a of the guide rail 28, is inserted from the edge of the upper frame 24 into a space surrounded by the bottom surface of the opening groove 24b of the upper frame 24 and the protrusions 24d, 24d of the left and right protruding pieces 24c. , are locked by each protrusion 24d. As a result, the auxiliary guide component 30 is also attached to the upper frame 24 which is prevented from coming off from the opening groove 24b.

As shown in FIGS. 5B to 7, the auxiliary guide portion 30d includes an auxiliary slit groove 44 and an auxiliary stopper portion 45. As shown in FIGS. The auxiliary guide portion 30d connects the slit groove 28c and stopper portion 28d of the guide rail 28 with the winding shaft 32. The auxiliary guide portion 30d transfers the fastener member 40 of the screen 18 between the slit groove 28c and the stopper portion 28d and the take-up shaft 32.

The auxiliary slit groove 44 is formed in a narrow gap formed between the guide plates 30f, 30f. The auxiliary slit groove 44 is continuous with the slit groove 28c of the upper frame 24 and has the same width as the slit groove 28c. A movable space 44a that is continuous with the movable space 28f of the guide rail 28 is formed on the back side of the auxiliary slit groove 44. The movable space 44a accommodates the retaining portion 40b in a state in which it is movable in the inward and outward directions of the frame and in the sliding direction. The dimensions of the movable space 44a in the indoor and outdoor directions are the same as those of the movable space 28f. The dimensions of the movable space 44a in the frame inward and outward directions are the same as those of the movable space 28f in a portion close to the guide rail 28, but gradually decrease toward the winding shaft 32 side in accordance with the shape of the auxiliary stopper portion 45.

The auxiliary stopper portion 45 is a portion for preventing the retaining portion 40b of the fastener member 40 from coming off from the auxiliary guide component 30. The auxiliary stopper portion 45 is formed by the opening surface (opening edge) of the auxiliary slit groove 44 on the movable space 44a side. The auxiliary stopper section 45 is continuous from the stopper section 28d of the guide rail 28. The auxiliary stopper section 45 includes a tapered introduction section 45a, a tapered section 45b, and a winding shaft introduction section 45c.

The taper introduction part 45a is adjacent to the stopper part 28d of the guide rail 28, and is an XZ plane set at the same position as the stopper part 28d in the frame inward and outward directions. The tapered introducing portion 45a is provided to smoothly move the fastener member 40 to the tapered portion 45b during the winding operation of the screen 18 onto the winding shaft 32. The taper introduction part 45a may be omitted.

The tapered portion 45b is an inclined surface provided to connect the tapered introduction portion 45a and the winding shaft introduction portion 45c, which have different heights. The tapered portion 45b is inclined in a direction (winding direction) from the stopper portion 28d of the guide rail 28 toward the winding shaft 32, gradually moving away from the lower guide rail 29, that is, in a direction outside the frame (outside direction). There is.

The take-up shaft introduction part 45c is an XZ plane provided between the tapered part 45b and the take-up shaft 32, and is provided at a position offset to the outside of the frame from the stopper part 28d and the taper introduction part 45a. The winding shaft introduction part 45c is a part for smoothly moving the fastener member 40 from the auxiliary guide component 30 to the winding shaft 32 when winding the screen 18 onto the winding shaft 32. The winding shaft introduction part 45c may be omitted.

The take-up shaft introduction part 45c is provided with a chamfered part 45d in which a part of the auxiliary slit groove 44 side is inclined toward the auxiliary slit groove 44 side in the Z direction (see FIG. 7). The chamfered portion 45d is a portion that allows the fastener member 40 to smoothly enter the auxiliary slit groove 44 when the screen 18 is unwound from the take-up shaft 32. In the auxiliary guide component 30, a chamfered portion 45e inclined toward the auxiliary slit groove 44 is also provided on the end surface of the auxiliary slit groove 44 on the winding shaft 32 side (see FIG. 7). The chamfered portion 45e is a portion for allowing the fastener member 40 to enter the auxiliary slit groove 44 more smoothly when the screen 18 is unwound from the take-up shaft 32. The chamfered portions 45d and 45e may be omitted.

The lower auxiliary guide component 31 is attached within the opening groove 24b of the lower frame 25 and is continuous with the guide rail 29. The auxiliary guide component 31 is interposed between the guide rail 29 and the winding shaft 32 and passes the lower edge of the screen 18 between the guide rail 29 and the winding shaft 32. Since this auxiliary guide component 31 has the same structure as the upper auxiliary guide component 30 except that it has a vertically symmetrical structure, it will be given the same reference numeral as the auxiliary guide component 30, and a detailed description thereof will be omitted.

Next, the operation of the screen 18 in the screen device 10 and its effects will be explained.

When the screen device 10 is normally used, the screen 18 is stretched vertically. In this state, the upper and lower edges of the screen 18, that is, the retaining portions 40b of the upper and lower fastener members 40 are at a position that has moved further to the outside of the frame than the stopper portion 28d, as shown in FIG. 5A. The clearance between the retaining part 40b and the stopper part 28d at this time is called a gap C. Note that although FIG. 5A shows a gap C between the stopper part 28d of the upper guide rail 28 and the upper stopper part 40b, the gap C is shown between the stopper part 28dc of the lower guide rail 28 and the lower stopper part 40b. The gap between the portion 40b and the portion 40b is also substantially the same.

By ensuring the gap C, the screen device 10 is prevented from being dragged onto the stopper portion 28d by the retaining portions 40b at the upper and lower edges of the screen 18 during normal use. As a result, the screen device 10 can smoothly open and close the screen 18 by sliding the movable crosspiece 36 with a light force. Also, by having a gap C between the retaining part 40b and the stopper part 28d during normal operation, the retaining part 40b will not easily fall off from the slit groove 28c when the screen 18 is pulled inward to the frame during strong winds. .

On the other hand, since the screen device 10 is provided with a gap C between the retaining part 40b and the stopper part 28d during normal use, the screen 18 may be drawn toward the inside of the frame when the screen 18 is exposed to strong winds. . In this case, the gap C between the upper and lower retaining portions 40b and the stopper portion 28d may vary, and the position of the retaining portions 40b in the frame inner and outer directions may vary in a wave-like manner in the entire length direction (X direction) of the fastener member 40.

In a typical screen device, when the screen 18 is wound onto the winding shaft 32 with the gap C fluctuating in this way, the wound screen 18 fluctuates in the axial direction of the winding shaft 32, causing what is called winding. There is a concern that misalignment may occur. If the winding misalignment occurs, the next time the screen 18 is unrolled, the unfolded screen 18 may be wrinkled or bent in various places, or the screen cannot be reliably transferred from the winding shaft 32 to the guide rails 28, 29 and falls off. There are concerns that

Therefore, in the screen device 10, an auxiliary guide portion 30d having a tapered portion 45b is interposed between the stopper portions 28d of the guide rails 28, 29 and the winding shaft 32. That is, the screen 18 passes through the auxiliary guide part 30d immediately before being wound up on the winding shaft 32, even if the retaining part 40b is displaced to the inside of the frame during unfolding as shown in FIG. When the screen 18 passes through the tapered portion 45b, the retaining portion 40b slides on the inclined surface and gradually moves to the outside of the frame. As a result, when the screen 18 is wound onto the winding shaft 32, the position of the screen 18 is always corrected to the outside and outside positions of the frame with a gap C relative to the stopper portion 28d. As a result, the screen 18 is prevented from being unrolled when being wound around the winding shaft 32, and is prevented from being wrinkled or bent during subsequent unfolding, or from failing to transfer to the guide rails 28, 29. suppressed. The tapered part 45b only needs to be able to move the retaining part 40b to the outside of the frame even more than the stopper part 28d, and does not necessarily have to be formed of a slope with a height that allows the retaining part 40b to be moved to the position where the gap C is formed. good.

In the horizontal pulling roll type screen device 10 like this embodiment, if the auxiliary guide part 30d is provided between at least the upper guide rail 28 and the take-up shaft 32, the auxiliary guide part for the lower guide rail 29 30d (auxiliary guide component 31) may be omitted. If the screen 18 can at least push up the retaining portion 40b on the upper edge to the outside of the frame, the retaining portion 40b on the lower edge will be drawn back to the proper position, thereby preventing the occurrence of winding misalignment on the winding shaft 32. This is because a sufficient suppressive effect can be obtained.

The auxiliary guide portion 30d of this embodiment is formed in auxiliary guide components 30 and 31 that are resin components separate from the guide rails 28 and 29. Therefore, even if the guide rails 28, 29 and the frames 24, 25 are made of extruded shapes of metal materials such as aluminum or resin materials, the auxiliary guide portion 30d having the auxiliary stopper portion 45 of the desired shape can be used. It can be configured easily and accurately.

This embodiment uses auxiliary guide components 30 and 31 that are separate from the guide rails 28 and 29. Therefore, the auxiliary guide portion 30d has a configuration in which a taper introduction portion 45a is provided between the taper portion 45b and the stopper portion 28d. As a result, as shown in FIG. 9, the retaining portion 40b that has slid on the stopper portion 28d can more smoothly move to the tapered portion 45b of the auxiliary guide portion 30d provided as a separate component.

The auxiliary guide portion 30d may be integrally formed with the guide rails 28 and 29. In this case, the auxiliary guide portion 30d may be formed by, for example, pushing up the end of the stopper portion 28d of the guide rails 28, 29 on the winding shaft 32 side from the inside of the frame to the outside of the frame.

As shown in FIG. 10, the auxiliary stopper section 45 may include a tapered section 45f and a winding shaft delivery section 45g between the winding shaft introducing section 45c and the winding shaft 32. The tapered portion 45f is inclined in a direction from the winding shaft 32 toward the stopper portion 28d of the guide rail 28 (feeding direction) and in a direction gradually moving away from the guide rail 29, that is, in a direction outside the frame (outside direction). The take-up shaft feeding portion 45g is an XZ plane in which the stopper portion 28d and the frame inward-outward direction position are set at the same position. The auxiliary guide component 30 further includes a tapered portion 45f and a take-up shaft delivery portion 45g, so that when the screen 18 is delivered from the take-up shaft 32, the screen 18 is introduced into the auxiliary guide portion 30d more smoothly.

Furthermore, even if the tapered portion 45b optimizes the position of the screen 18 inside and outside the frame and the screen 18 is wound onto the take-up shaft 32, the screen 18 may fall in the axial direction of the take-up shaft 32 due to external force, its own weight, etc. There is also gender. Also in this case, it is preferable that the auxiliary stopper section 45 includes a tapered section 45f and a winding shaft feeding section 45g. Then, as shown in FIG. 10, the fastener member 40, whose position has been lowered by the winding shaft 32, returns to a predetermined proper position via the tapered portion 45f. The auxiliary stopper section 45 may be configured to omit the take-up shaft feeding section 45g and include only the tapered section 45f.

Next, a screen device 10A according to a second embodiment will be described. In the screen device 10A according to the second embodiment, elements having the same or similar functions and effects as those of the screen device 10 according to the first embodiment are given the same reference numerals, and detailed explanations are omitted. .

As shown in FIGS. 11 and 12, the screen device 10A of this embodiment is of a raising and lowering type in which the screen 18 slides in the vertical direction. Like the screen device 10 according to the first embodiment, the screen device 10A is also fixed to the building frame 14, for example, on the indoor side of the window device 12. The screen device 10A includes a gate-shaped frame 50 and a screen mechanism section 52 supported by the frame 50.

The frame body 50 includes a pair of left and right vertical frames 54 and 55, and a storage box 56 serving as an upper frame. One vertical frame 54 has the same function as the upper frame 24 and guide rail 28 of the screen device 10 of the first embodiment. As shown in FIG. 14A, the vertical frame 54 includes a hollow portion 24a and a guide rail 56a. The guide rail 56a has a slit groove 28c similar to the guide rails 28 and 29, a stopper portion 28d, and a movable space 28f. The fastener member 40 is slidably guided by the guide rail 56a. Reference numeral 58 in FIG. 14A is a guide groove into which the slide guide 36a of the movable crosspiece 36 is slidably inserted. The other vertical frame 55 has the same structure as the one vertical frame 54 except that it is laterally symmetrical, so the same reference numerals as those of the vertical frame 54 will be given, and a detailed description thereof will be omitted.

The storage box 56 has substantially the same structure as the storage box 26 described above except for the installation orientation. As shown in FIGS. 11 to 13, the storage box 56 is a cylindrical body in which the winding shaft 32 is rotatably stored around the shaft and arranged along the left-right direction. The storage box 56 has a side wall 26a, a door body 26b, and a cap 26c and a cap 26d that cover the left and right openings of the storage space S. The caps 26c and 26d are connected to the vertical frames 54 and 55 by inserting the mounting piece 35 into the hollow portion 24a and locking the locking piece 35a into the hole 24e.

As shown in FIG. 13, in the screen device 10A of this embodiment, the auxiliary guide portion 30d is integrally molded with the caps 26c, 26d. As shown in FIG. 15, this auxiliary guide portion 30d also includes an auxiliary slit groove 44 and an auxiliary stopper portion 45. The auxiliary stopper section 45 of this embodiment includes a tapered section 45b and a winding shaft introduction section 45c, but does not have a tapered introduction section 45a. Also in the screen device 10A, the auxiliary guide portion 30d may be formed as a single auxiliary guide component 30, 31, and this auxiliary guide component 30, 31 may be attached to the guide rail 56a or the caps 26c, 26d. On the other hand, also in the screen device 10 according to the first embodiment, the auxiliary guide portion 30d may be integrally molded on the caps 26c, 26d, or the auxiliary guide parts 30, 31 may be attached to the caps 26c, 26d. good.

The tapered portion 45b shown in FIG. 15 is arranged to protrude into the movable space 28f of the vertical frame 54 (55) and is continuous with the stopper portion 28d. In the configuration example of FIG. 15, the protruding end of the tapered portion 45b is continuous with the stopper portion 28d with a certain level difference, but the tapered portion 45b may be configured to be continuous with the stopper portion 28d via a smooth slope. Also in this embodiment, the auxiliary stopper section 45 may include a part or all of the tapered introduction section 45a, the tapered section 45f, and the take-up shaft delivery section 45g.

Therefore, in the screen device 10A as well, even when the screen 18 is opened and the retaining portion 40b is displaced to the inside of the frame as shown in FIG. It passes through the auxiliary guide section 30d. As a result, in the screen device 10A as well, the positions inside and outside the frame of the retaining portions 40b at the left and right edges of the screen 18 are corrected by the tapered portions 45b. As a result, when the screen 18 is wound around the winding shaft 32, the screen 18 is prevented from being misaligned in the axial direction (winding misalignment). Note that since the screen device 10A is of a raising and lowering type, it is preferable to provide auxiliary guide portions 30d on both the left and right vertical frames 54 and 55.

A screen device according to one aspect of the present invention includes a take-up shaft, and a pair of edges that are attached to the take-up shaft so as to be able to pay out and take up the wind-up shaft, and that extend along the pay-out direction and the wind-up direction with respect to the take-up shaft. The screen has a screen each provided with a fastener member, a stopper portion that prevents the fastener member from coming off, and a slit groove through which the edge of the screen is slidably inserted, and the screen is slidable. A screen device comprising: a pair of guide rails that hold the screen, the screen device being provided between the winding shaft so as to be continuous from the stopper portion of at least one of the guide rails, and on which the fastener member is slidable. The present invention is characterized in that it includes an auxiliary guide section, and the auxiliary guide section has a first tapered section that is inclined toward the outside and gradually moves away from the other guide rail in the winding direction. According to such a configuration, the position of the edge of the screen can be corrected by the first tapered part when the screen is wound onto the winding shaft, and the occurrence of winding misalignment is suppressed.

a pair of frame members to which the pair of guide rails are attached; a storage box that rotatably supports the winding shaft around the shaft and stores the screen wound on the winding shaft; and the auxiliary guide. and an auxiliary guide component attached to the frame member or the storage box. Then, even if the guide rail is formed of an extruded section, for example, it is possible to easily form the auxiliary guide section having the first tapered section with high precision.

The frame material may be an extruded metal member, and the auxiliary guide component may be a molded resin component. Then, the auxiliary guide portion can be easily formed into a desired shape. Further, additional processing for providing the first tapered portion on the guide rail is not necessary, and the manufacturing efficiency of the entire device is improved.

The auxiliary guide portion further extends along the winding direction between the first tapered portion and the stopper portion, and guides movement of the fastener member from the stopper portion to the first tapered portion. It is also possible to have a configuration having a taper introduction section. This allows the fastener member that has slid on the stopper portion of the guide rail to more smoothly move to the first tapered portion of the auxiliary guide portion provided as a separate component.

The auxiliary guide portion may further include a second tapered portion provided between the first tapered portion and the take-up shaft and gradually inclined toward the outer side toward the feeding direction. Then, when the screen is fed out from the take-up shaft to the guide rail via the auxiliary guide section, the screen can move more smoothly.

The winding shaft may be rotatably supported around the shaft, and a storage box may be provided to store the screen wound on the winding shaft, and the auxiliary guide portion may be integrally formed with the storage box. good. In this way, the auxiliary guide section can be easily installed and the number of parts can be reduced.

The screen device is of a horizontal pulling type in which the axial direction of the winding shaft is arranged along the vertical direction and the screen slides in the horizontal direction, and the auxiliary guide section is arranged between the pair of edges of the screen. Of these, the winding shaft may be provided between an upper guide rail disposed along the left-right direction so as to guide at least the upper edge. By doing so, it is possible to effectively suppress the occurrence of winding misalignment in a horizontal pull type configuration in which the screen slides left and right.

The screen device is of an up-and-down type in which the axial direction of the winding shaft is arranged along the left-right direction, and the screen slides in the vertical direction, and the auxiliary guide section is located between the pair of edges of the screen. The winding shaft may be provided between a guide rail arranged along the vertical direction so as to guide at least one edge, and the winding shaft. By doing so, it is possible to effectively suppress the occurrence of winding misalignment in the up-and-down type configuration in which the screen slides up and down.

Note that the present invention is not limited to the embodiments described above, and it goes without saying that changes can be made freely without departing from the spirit of the present invention.

10, 10A Screen device, 18 Screen, 20, 50 Frame, 22, 52 Screen mechanism section, 24 Upper frame, 25 Lower frame, 26, 56 Storage box, 26c, 26d, 38, 39 Cap, 27 Side frame, 28 , 29, 56a guide rail, 28c slit groove, 28d stopper part, 30, 31 auxiliary guide part, 30d auxiliary guide part, 32 winding shaft, 36 movable crosspiece, 40 fastener member, 40a fastener tape, 40b retaining part, 44 auxiliary Slit groove, 45 Auxiliary stopper part, 45a Taper introduction part, 45b Taper part, 45c Take-up shaft introduction part, 45f Taper part, 45g Take-up shaft delivery part, 54, 55 Vertical frame

Claims (8)

a winding shaft;
a screen that is attached to the winding shaft so that it can be fed out and rolled up, and that has a fastener member provided on each of a pair of edges along the feeding direction and the winding direction with respect to the winding shaft;
a pair of guide rails that slidably hold the screen and have a stopper portion that prevents the fastener member from coming off; and a slit groove through which the edge of the screen is slidably inserted;
A screen device comprising:
an auxiliary guide part provided between the take-up shaft so as to be continuous from the stopper part of at least one of the guide rails, and on which the fastener member can slide;
The screen device according to claim 1, wherein the auxiliary guide section has a first tapered section that slopes outward and gradually separates from the other guide rail in the winding direction. The screen device according to claim 1,
a pair of frame members to which the pair of guide rails are attached;
a storage box that rotatably supports the winding shaft around the shaft and stores the screen wound on the winding shaft;
an auxiliary guide component having the auxiliary guide portion and attached to the frame material or the storage box;
A screen device comprising: The screen device according to claim 2,
The frame material is an extruded metal member,
A screen device characterized in that the auxiliary guide component is a molded component made of resin. The screen device according to any one of claims 1 to 3,
The auxiliary guide portion further extends along the winding direction between the first tapered portion and the stopper portion, and guides movement of the fastener member from the stopper portion to the first tapered portion. A screen device characterized by having a tapered introduction section. The screen device according to any one of claims 1 to 4,
The auxiliary guide section further includes a second tapered section that is provided between the first tapered section and the take-up shaft and that is gradually inclined toward the outer side toward the feeding direction. screen device. The screen device according to claim 1,
A storage box that rotatably supports the winding shaft around the shaft and stores the screen wound on the winding shaft,
The screen device is characterized in that the auxiliary guide portion is integrally molded with the storage box. The screen device according to any one of claims 1 to 6,
The screen device is of a horizontal pulling type in which the axial direction of the winding shaft is arranged along the vertical direction and the screen slides in the horizontal direction,
The auxiliary guide section is provided between the winding shaft and an upper guide rail arranged along the left-right direction so as to guide at least an upper edge of the pair of edges of the screen. A screen device characterized by: The screen device according to any one of claims 1 to 6,
The screen device is of a raising and lowering type in which the axial direction of the winding shaft is arranged along the left-right direction, and the screen slides in the vertical direction,
The auxiliary guide section is provided between the take-up shaft and a guide rail disposed along the vertical direction so as to guide at least one edge of the pair of edges of the screen. A screen device characterized by:

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