JP6456798B2 - Screen device - Google Patents

Description

  The present invention relates to a screen device including a screen that can be opened and closed.

  A screen device is installed in an opening of a building such as an opening / closing window for the purpose of insect protection, blindfolding, light shielding, and the like. The screen of the screen device is, for example, a net, a cloth, or a sheet, and is opened / closed by a user's opening / closing operation. Conventionally, in addition to a screen device that opens and closes the entire screen, a screen device that opens and closes a part of the screen by moving the screen within a frame is also used. As a screen device for opening and closing a part of the screen, conventionally, the screen is wrapped around a wrapping member in a folding box, and the two bars on both ends of the screen are slid in the beam guides of a pair of guide frames. A sliding screen device that moves the screen is known (see Patent Document 1).

  However, in the conventional screen device described in Patent Document 1, the folding box is attached to the upper ends of the pair of guide frames and the winding member is opened in the folding box in order to fold and move the screen. And is attached to the folded box. Therefore, the number of parts required for opening and closing the screen increases, and the structure of the screen device becomes complicated. The two bars are guided by sliding inside each of the two bars guides. Along with this, there is a possibility that the two bars are caught by the beam guides, or the two beams receive resistance from the beam guides, so that the smooth opening and closing of the screen is hindered.

Japanese Patent No. 5145267

  The present invention has been made in view of the above-described conventional problems, and an object of the present invention is to easily and smoothly open and close the screen of the openable and closable screen device that moves by folding.

  The present invention includes a pair of opposing vertical frames, an openable and closable screen that is folded back at the upper end portions of the pair of vertical frames and moves along the pair of vertical frames, and is connected to the upper end portion of the screen. It is a screen apparatus provided with the upper crosspiece which moves along a pair of vertical frame, and the lower crosspiece which is connected to the lower end part of the screen and moves along the pair of vertical frames. The screen device is provided at an upper end portion of the pair of vertical frames, each of both sides of the screen is wound around, and a pair of the screen is folded back together with the screen between the upper rail and the lower rail. An upper beam guide that is provided on the pair of vertical frames, guides both ends of the upper beam that moves along the pair of vertical frames, and allows the upper beam to swing. Is provided.

  ADVANTAGE OF THE INVENTION According to this invention, the screen of the screen apparatus which can be opened and closed and can be opened and closed can be opened and closed simply and smoothly.

It is a front view of the screen apparatus of this embodiment. It is a front view of the screen apparatus of this embodiment. It is a schematic diagram for demonstrating opening and closing of the screen in the screen apparatus of this embodiment. It is sectional drawing which shows the screen apparatus and opening / closing window of this embodiment. It is sectional drawing which shows the screen apparatus and opening / closing window of this embodiment. It is sectional drawing which shows the Y1 part of FIG. It is sectional drawing which shows the Y2 part of FIG. It is sectional drawing which shows the Y3 part of FIG. It is a figure which shows the lower crosspiece cap and lower crosspiece holding part of this embodiment. It is a figure which shows the folding | turning member of this embodiment. It is a perspective view which decomposes | disassembles and shows the folding | turning member shown in FIG. It is a figure which shows operation | movement when opening the screen in the screen apparatus of this embodiment in order.

An embodiment of the screen device of the present invention will be described with reference to the drawings.
The screen device of this embodiment is a screen device for an opening that opens and closes a part of the screen, and opens and closes a part of the opening by the screen. Below, the case where a screen apparatus is a screen door for building opening parts is taken as an example, and the screen apparatus which can be opened and closed is demonstrated.

1 and 2 are front views of the screen device 1 of the present embodiment, and FIG. 2 shows the screen device 1 viewed from the opposite side of FIG.
As illustrated, the screen device 1 is attached to the window frame 10 and disposed in the opening 11 in the window frame 10. The window frame 10 is a rectangular opening frame, and includes a window upper frame 12, a window lower frame 13, and a pair of window vertical frames 14. The entire opening 11 is closed and part of the opening 11 is opened and closed by the screen 2 of the screen device 1.

  The screen device 1 includes a rectangular screen 2 that can be opened and closed, a screen frame 3 attached to a window frame 10, and two movable bars (an upper bar 4 and a lower bar 5) that move together with the screen 2. Yes. The screen frame 3 includes an upper frame 20 fixed to the window upper frame 12 and left and right vertical frames (a pair of vertical frames 21) fixed to the pair of window vertical frames 14. The upper frame 20 is connected to the upper ends of the pair of vertical frames 21 and extends in the left-right direction along the upper ends of the opening 11.

  The pair of vertical frames 21 are guide frames that guide the upper beam 4 and the lower beam 5, are arranged opposite to the left and right of the opening 11, and extend in the vertical direction along the side of the opening 11. The screen 2 is a net part of a screen door, is arranged between a pair of vertical frames 21, and opens and closes a part of the opening 11 located between the pair of vertical frames 21. The upper cross 4 is a first movable cross connected to the upper end 2A (see FIG. 2) of the screen 2, and the lower cross 5 is a second movable cross connected to the lower end 2B of the screen 2.

  The upper end 2A and the lower end 2B of the screen 2 are an upper end and a lower other end of the screen 2 in a closed state (the state shown in FIGS. 1 and 2), respectively. With the screen 2 closed, the upper rail 4 is disposed between the upper ends of the pair of vertical frames 21 and at a position shielded by the upper frame 20, and the lower rail 5 is disposed between the pair of vertical frames 21. It arrange | positions along a lower end part of the opening part 11 between lower end parts. When the screen 2 is opened and closed, the upper rail 4 and the lower rail 5 move along the pair of vertical frames 21 while holding the upper end 2A and the lower end 2B of the screen 2, respectively.

FIG. 3 is a schematic diagram for explaining opening and closing of the screen 2 in the screen device 1 of the present embodiment, and shows a part of the screen device 1. 3A shows the screen device 1 with the screen 2 closed, and FIG. 3B shows the screen device 1 with the screen 2 opened.
As shown in the figure, the screen 2 is folded back at the upper ends of the pair of vertical frames 21, moves along with the upper frame 4 and the lower frame 5 along the pair of vertical frames 21, and is opened and closed. At that time, the upper beam 4 and the lower beam 5 move in opposite directions along the pair of vertical frames 21 in a state where tension is applied to the screen 2. The upper rail 4 and the lower rail 5 are guided by the pair of vertical frames 21 in the longitudinal direction (here, the vertical direction) of the pair of vertical frames 21 and move in the vertical direction.

  In a state where the screen 2 is closed (see FIG. 3A), the upper rail 4 is disposed at the upper end of the pair of vertical frames 21 (and the opening 11), and the lower rail 5 is disposed on the pair of vertical frames 21 (and Arranged at the lower end of the opening 11). The screen 2 is disposed between the upper rail 4 and the lower rail 5 and is developed at the opening 11 to close the opening 11. In a state where the screen 2 is opened (see FIG. 3B), the upper rail 4 and the lower rail 5 are arranged in the middle portion in the longitudinal direction of the pair of vertical frames 21 and are adjacent to each other at positions shifted vertically. The screen 2 is folded between the upper rail 4 and the lower rail 5 to open a part of the opening 11. Here, the lower part of the opening 11 is opened and closed by the screen 2 and the upper part of the opening 11 is kept closed.

  The lower beam 5 is an operation beam (operation beam) used for opening and closing the screen 2, and the upper beam 4 is a tracking beam (tracking beam) that moves following the movement of the screen 2. A handle 5 </ b> A is provided at the center in the longitudinal direction of the lower rail 5 and protrudes from the lower rail 5. The user opens and closes the screen 2 by holding the handle 5 </ b> A and moving the lower rail 5 in the vertical direction along the pair of vertical frames 21. When the screen 2 is opened, the lower rail 5 is lifted and moved upward, and when the screen 2 is closed, the lower rail 5 is pushed down and moved downward.

  As the lower beam 5 moves upward, the upper beam 4 moves downward due to its own weight and pulls the screen 2 downward. In a folded state, the screen 2 moves in the moving direction of the lower beam 5 and the upper beam 4 and is gradually opened. As the lower rail 5 moves downward, the screen 2 is pulled downward by the lower rail 5 and pulls the upper rail 4 upward. Accordingly, the upper rail 4 moves upward, and the screen 2 moves in the moving direction of the lower rail 5 and the upper rail 4 and is gradually closed. The lower rail 5 (see FIG. 1) has a shielding portion 5B that protrudes downward. The screen 5 is closed and the gap between the lower rail 5 and the window lower frame 13 is shielded by the shielding portion 5B.

4 and 5 are cross-sectional views showing the screen device 1 and the opening / closing window 15 of the present embodiment, and FIG. 4 shows the screen device 1 cut along line X1-X1 in FIG. 5A shows the screen device 1 cut along the line X2-X2 in FIG. 2, and FIG. 5B shows the upper end 2A, the lower end 2B, and the side 2C of the screen 2.
As illustrated, the opening / closing window 15 includes a window frame 10 and a shoji 16 disposed in the window frame 10 and connected to the window frame 10 so as to be opened and closed. Here, the shoji 16 opens to the indoor side R from the state of closing the opening 11. The screen device 1 is disposed on the outdoor side S of the shoji 16, and the screen 2 is opened and closed on the outdoor side S of the shoji 16.

  The screen 2 includes a rectangular screen main body (here, a net) 2H and fastener halves (one side portion of the line fastener) 22 attached to four edges of the screen main body 2H (see FIG. 5B). Fastener halves 22 are provided on the upper end 2A, lower end 2B, and both side 2C of the screen 2, and a plurality of elements (service teeth) 23 of the fastener halves 22 are arranged in parallel. The screen device 1 includes an inner rail 24 made of synthetic resin attached to each of the upper rail 4, the lower rail 5, and the pair of vertical frames 21, and holds the fastener half body 22 by the inner rail 24. . The inner rail 24 is a holding member for the screen 2, and holds the upper half 2 </ b> A, the lower end 2 </ b> B, and the both sides 2 </ b> C of the screen 2 by holding the fastener half 22.

FIG. 6 is a cross-sectional view showing a Y1 portion of FIG. 4 and shows the periphery of the upper rail 4.
As illustrated, the inner rail 24 is housed in the housing groove 4 </ b> A of the upper rail 4 and is held by the upper rail 4. The screen 2 (fastener half 22) is disposed up to the inner rail 24 through the slit 25 of the inner rail 24, and the element 23 of the fastener half 22 is accommodated in the hollow portion 26 of the inner rail 24. The slit 25 and the hollow portion 26 are formed over the entire length of the inner rail 24. The element 23 cannot pass through the slit 25, whereby the upper end 2 </ b> A of the screen 2 is held by the inner rail 24. The upper end 2 </ b> A of the screen 2 is bent toward the indoor side R at the upper end of the vertical frame 21 and is held on the upper rail 4 by the inner rail 24.

FIG. 7 is a cross-sectional view showing the Y2 portion of FIG. 4 and shows the periphery of the lower rail 5.
As illustrated, the inner rail 24 is housed in the housing groove 5 </ b> C of the lower rail 5 and is held by the lower rail 5. The lower end 2 </ b> B of the screen 2 is held by the inner rail 24 and is also held by the lower rail 5 by the inner rail 24.

FIG. 8 is a cross-sectional view showing the Y3 portion of FIG. 5 and shows the periphery of one vertical frame 21. FIG. Moreover, in FIG. 8, the edge part 4A of the upper crosspiece 4 is shown with the dotted line.
As illustrated, the inner rail 24 is accommodated in the accommodating groove 21 </ b> A of the vertical frame 21 and is held by the vertical frame 21. When the screen 2 is opened and closed, the side portion 2 </ b> C of the screen 2 is guided by the slit 25 while being held by the inner rail 24, and moves in the longitudinal direction of the slit 25. By the inner rail 24, the side portion 2 </ b> C of the screen 2 is held by the vertical frame 21 and moves along the vertical frame 21. Thus, the slit 25 of the inner rail 24 is the screen moving part 27 provided in the vertical frame 21 and moves while holding the side part 2C of the screen 2 to guide the side part 2C.

  The vertical frame 21 includes a lower beam guide 28 that guides the end portion 5 </ b> D of the lower beam 5, and an upper beam guide 30 that guides the end portion 4 </ b> A of the upper beam 4. The lower beam guide 28 and the upper beam guide 30 are guide grooves formed in the vertical frame 21, are formed in parallel with a portion of the vertical frame 21 on the screen 2 side, and extend along the vertical frame 21. The screen moving unit 27 (accommodating groove 21 </ b> A) is provided adjacent to the lower beam guide 28 and is connected to the bottom of the lower beam guide 28. The lower rail guide 28 is provided along the longitudinal direction of the pair of vertical frames 21, and guides both ends 5 </ b> D in the longitudinal direction of the lower rail 5 moving along the pair of vertical frames 21 when the screen 2 is opened and closed. .

  Both end portions 5 </ b> D of the lower beam 5 are disposed in the lower beam guide 28 and slide on the lower beam guide 28. At the same time, the two side portions 2 </ b> C of the screen 2 are guided by the screen moving portion 27 of the pair of vertical frames 21 that are screen guides and move together with the lower rail 5. The lower beam 5 has lower beam caps 40 provided at both ends 5D, and the lower beam guides 28 of the pair of vertical frames 21 guide the lower beam caps 40 at both ends 5D of the lower beam 5. The lower beam cap 40 has a sliding portion 41 that slides in the lower beam guide 28 and a locking portion 42 that locks the lower beam cap 40 to the lower beam guide 28, and is attached to the end surface of the lower beam 5. The When the screen 2 is closed, the lower beam 5 is held by the lower beam holding portion located in the lower beam guide 28 by the lower beam cap 40.

FIG. 9 is a view showing the lower crosspiece cap 40 and the lower crosspiece holding portion 46 of the present embodiment. FIG. 9A is a perspective view of the lower crosspiece cap 40, and FIG. 9B is a perspective view showing the lower crosspiece holding portion 46 through the vertical frame 21. FIG. 9C is a cross-sectional view of the lower crosspiece cap 40 held by the lower crosspiece holding portion 46.
As shown in the figure, the lower rail holding portion 46 is formed on the vertical frame cap 47 and protrudes upward from the vertical frame cap 47. The vertical frame cap 47 is attached to the lower end portion of the vertical frame 21, and the lower beam holding portion 46 is disposed in the lower beam guide 28 of the vertical frame 21. The lower beam cap 40 has a held portion 43 formed on the sliding portion 41 (see FIG. 9C), and the lower beam holding portion 46 latches and holds the held portion 43 of the lower beam cap 40. .

  The lower rail holding portion 46 is an elastically deformable hook-shaped locking portion (locking hook), and locks the held portion 43 of the lower beam cap 40 by snap fitting. Due to the downward movement of the lower beam 5, the locking projection 48 at the tip of the lower beam holding portion 46 enters the locking recess 44 of the held portion 43, and the lower beam holding portion 46 is moved to the lower beam cap 40 (held). Part 43) and the lower rail 5 are locked. Further, due to the upward movement of the lower beam 5, the locking projection 48 of the lower beam holding portion 46 is disengaged from the locking recess 44 of the held portion 43, and the lower beam cap 40 and the lower beam by the lower beam holding portion 46. 5 is released. The lower beam holding portion 46 is provided at the lower end portion of the pair of vertical frames 21, and when the lower beam 5 moves to the lower end portions of the pair of vertical frames 21, both end portions 5D (lower beam cap 40) of the lower beam 5 are moved. ) Is held.

  As the lower beam 5 moves in the vertical direction, the lower beam holding unit 46 holds the lower beam 5 or releases the holding of the lower beam 5. When the screen 2 is closed, the lower rail holding unit 46 holds the lower rail 5 that has moved below the pair of vertical frames 21 and maintains the screen 2 in a closed state. When the screen 2 is opened, the lower beam holding part 46 releases the holding of the lower beam 5, and the lower beam 5 moves above the pair of vertical frames 21.

  The upper beam guide 30 (see FIGS. 6 and 8) is provided on the indoor side R of the lower beam guide 28, and the upper beam guide 30 and the lower beam guide 28 are formed in parallel. The upper rail guide 30 is provided along the longitudinal direction of the pair of vertical frames 21, and guides both ends 4A in the longitudinal direction of the upper rail 4 moving along the pair of vertical frames 21 when the screen 2 is opened and closed. . The width of the upper beam guide 30 is wider than the end portion 4A of the upper beam 4, and the upper beam guide 30 allows the end portion 4A of the upper beam 4 and the upper beam 4 to swing. When the screen 2 is opened and closed, the upper rail 4 can swing in the indoor side R or the outdoor side S (inside / outward direction) corresponding to the force, weight, center of gravity, etc. received from the screen 2, and the posture is changed with the swing. change. Both end portions 4 </ b> A of the upper beam 4 are swingably disposed on the upper beam guide 30 of the pair of vertical frames 21 and are held by the upper beam guide 30. Further, both end portions 4A of the upper rail 4 can be displaced inward and outward within the upper rail guide 30, and the upper rail 4 is displaced inward and outward together with both end portions 4A.

  Specifically, the upper rail guide 30 includes a groove portion 31 formed in a concave shape and a pair of wall portions 32 and 33 that partition the groove portion 31. The groove 31 accommodates the end 4A of the upper rail 4 and guides the end 4A of the upper rail 4 that moves along the pair of vertical frames 21. A pair of wall parts 32 and 33 are side wall parts (groove wall part) of the groove part 31 located in the both sides of the width direction of the groove part 31, are formed in parallel with the vertical frame 21, and oppose each other. The pair of wall portions 32 and 33 are provided along the longitudinal direction of the vertical frame 21 and are formed in parallel, and define a groove portion 31 that is a moving path of the end portion 4A of the upper rail 4 between each other. . In the groove 31 (see FIG. 8), the end 4A of the upper rail 4 is in contact with the one wall 32, 33, and between the other wall 32, 33 and the end 4A of the upper rail 4. A gap is formed in which the end 4A of the upper rail 4 can be displaced.

  The upper beam 4 has upper beam caps 35 provided at both end portions 4 </ b> A, and the upper beam guides 30 of the pair of vertical frames 21 guide the upper beam caps 35 at both end portions 4 </ b> A of the upper beam 4. The upper crosspiece cap 35 has a protrusion 36 that protrudes outward in the longitudinal direction of the upper crosspiece 4, and is attached to the end surface of the upper crosspiece 4. The protrusion 36 of the upper beam cap 35 is disposed in the upper beam guide 30 and is guided by the upper beam guide 30.

  The screen device 1 includes a pair of folding members 50 that fold the screen 2 toward the upper beam 4 and the lower beam 5 (see FIG. 6). The pair of folding members 50 are respectively provided at the upper ends of the pair of vertical frames 21, and the both side portions 2 </ b> C of the screen 2 are wound around each other. Here, only the side portion 2 </ b> C of the screen 2 is wound around the folding member 50. Between the upper rail 4 and the lower rail 5, the pair of folding members 50 are guided while holding the side portions 2 </ b> C of the screen 2, and the both side portions 2 </ b> C of the screen 2 are folded together with the screen 2.

FIG. 10 is a view showing the folding member 50 of the present embodiment, and shows the folding member 50 attached to the end face of the vertical frame 21. 10A is a perspective view of the folding member 50, and FIG. 10B is a side view of the folding member 50 as viewed from the direction of the arrow Z1 in FIG. 10A. In FIG. 10B, the cross section of the vertical frame 21 is shown, and the screen 2 is shown by a dotted line.
FIG. 11 is an exploded perspective view showing the folding member 50 shown in FIG. 11A shows the base member 51 of the folded member 50 as viewed from the direction of the arrow Z2 in FIG. 10A, and FIG. 11B shows the cover member 60 of the folded member 50 as viewed from the direction of the arrow Z3 in FIG.

  As illustrated, the folding member 50 includes a base member 51 attached to the vertical frame 21 and a cover member 60 attached to the base member 51. The base member 51 includes a plate-like winding portion 52 that protrudes upward, a concave guide portion 53 formed at the tip of the winding portion 52, and a contact portion 54 that contacts the upper rail 4. The cover member 60 covers a part of the winding part 52 in a state where a gap is formed between the cover member 60 and a part of the winding part 52, and the screen 2 can pass between the part of the winding part 52. A simple passage portion (gap portion) 61 is formed. The side portion 2 </ b> C of the screen 2 passes through the passage portion 61 and is wound around the winding portion 52 of the folding member 50. The guide portion 53 is located at the upper end portion of the passage portion 61 and holds and guides the side portion 2C of the screen 2 that is wound around.

  With the movement of the screen 2, the side portion 2 </ b> C of the screen 2 passes through the passage portion 61 to the upper rail 4 side or the lower rail 5 side and is folded back at the front end portion of the winding portion 52. At that time, the element 23 of the fastener half 22 is located in the guide portion 53, held in the guide portion 53, and guided by the guide portion 53. Thus, the folding member 50 holds and guides the side portion 2C of the screen 2. Both side portions 2C of the screen 2 are folded in the folding direction by the folding members 50, respectively. At the same time, the screen 2 between the two side portions 2C is bent in accordance with the folding of the two side portions 2C and is folded in the folding direction of the two side portions 2C.

  The pair of folding members 50 include passage portions 61 that guide each of the two side portions 2 </ b> C of the screen 2. By the passage portion 61, the two side portions 2C of the screen 2 are guided to the folding position or the movement path. Here, the passage portion 61 is located above the screen moving portion 27 of the vertical frame 21 and is formed toward the screen moving portion 27. The passage portions 61 of the pair of folding members 50 guide the two side portions 2 </ b> C of the screen 2 toward the screen moving portion 27.

  When closing the screen 2, both side portions 2 </ b> C of the screen 2 move from the passage portion 61 toward the screen moving portion 27 provided in the pair of vertical frames 21 and enter the screen moving portion 27. When the screen 2 is opened and closed, the screen moving unit 27 of the pair of vertical frames 21 moves while holding both side portions 2C of the screen 2 between the pair of folding members 50 and the lower rail 5. When opening the screen 2, both side portions 2 </ b> C of the screen 2 move from the screen moving portion 27 toward the passage portion 61 and enter the passage portion 61.

FIG. 12 is a diagram sequentially illustrating operations when opening the screen 2 in the screen device 1 of the present embodiment, and schematically shows a portion including the upper rail 4 of the screen device 1.
As shown in the figure, the upper rail 4 has a contact portion 37 formed on the upper rail cap 35, and contacts the contact portion 54 of the folding member 50 at the contact portion 37. When the screen 2 is closed (see FIG. 12A), the upper rail 4 moves to the upper end portion of the vertical frame 21, and the contact portions 54 of the pair of folding members 50 come into contact with the upper rail 4 and the upper rail 4 Stop. In this state, the upper rail 4 holds the upper end 2 </ b> A of the screen 2 on the indoor side R of the folding member 50 and keeps the screen 2 closed.

  When the screen 2 is opened (see FIGS. 12B to 12F), the upper rail 4 gradually moves downward while pulling the folded screen 2 in response to the movement of the lower rail 5 and the screen 2. At that time, the upper rail guide 30 of the vertical frame 21 guides the upper rail 4 so as to be swingable, and moves the upper rail 4 along the pair of vertical frames 21. The upper rail 4 swings in a state (posture) that is easy to move and moves smoothly. As described above, the posture of the upper rail 4 can be changed to a stop posture in contact with the folding member 50 and a moving posture when the screen 2 is opened and closed by swinging. When the upper beam 4 is guided by the upper beam guide 30, the upper beam 4 swings and the posture of the upper beam 4 is changed. Even when the screen 2 is closed, the upper beam 4 is guided and moved by the upper beam guide 30 in an easily movable state (posture) due to the swinging and changing posture.

  In the portion where the lower rail guide 28 of the vertical frame 21 is provided, the lower rail guide 28 and the screen moving portion 27 are provided side by side, and the guide of the end 5D of the lower rail 5 and the guide of the side 2C of the screen 2 are provided. Done at the same time. On the other hand, in the portion where the upper rail guide 30 of the vertical frame 21 is provided, the screen moving portion 27 is not provided, and only the guide of the end portion 4A of the upper rail 4 is performed. Between the folding member 50 and the upper rail 4, both side portions 2 </ b> C of the screen 2 are located outside the upper rail guide 30 of the pair of vertical frames 21, and are not guided by the screen moving unit 27 or the like. Move with.

  The pair of wall portions 32, 33 of the upper beam guide 30 includes the first wall portion 32 located on the outdoor side S (the lower beam guide 28 side) of the end 4 </ b> A (projecting portion 36) of the upper beam 4, and the upper beam 4. The second wall portion 33 is located on the indoor side R (the opposite side of the lower guide 28) of the end portion 4A. The end portion 4A of the upper rail 4 is disposed in the groove portion 31 between the first wall portion 32 and the second wall portion 33, and the displacement in the inner and outer directions is restricted by the first wall portion 32 and the second wall portion 33. The The first wall portion 32 is a guide wall that guides the end portion 4A of the upper rail 4 when the screen 2 is opened and closed, and contacts the end portion 4A of the upper rail 4 that moves along the pair of vertical frames 21. Then, the end 4A of the upper rail 4 is guided. The second wall portion 33 is a prevention wall that prevents the end portion 4A of the upper rail 4 from coming off from the groove portion 31 when the screen 2 is opened and closed, and restricts displacement of the end portion 4A of the upper rail 4 to the outside of the groove portion 31. To do.

  At the time of opening and closing the screen 2, the end 4 </ b> A of the upper bar 4 is guided by the first wall 32 without moving to the second wall 33 and moves along the vertical frame 21 in the groove 31. At that time, the end 4 </ b> A of the upper rail 4 is restrained from being caught by the upper rail guide 30, and the end 4 </ b> A of the upper rail 4 receives resistance only from the first wall portion 32. When the screen 2 is closed, the end portion 4A of the upper rail 4 is located in the groove 31 and is disposed at a position where the upper rail guide 30 can guide.

  In the screen device 1 of the present embodiment described above, the structure required for opening and closing the screen 2 can be simplified, and the screen 2 can be opened and closed easily and smoothly. In addition, the pair of folding members 50 can not only fold the screen 2 but also stop the upper rail 4 to keep the screen 2 closed. The side portions 2C of the screen 2 can be guided by the passage portions 61 of the pair of folding members 50 so that the screen 2 can be reliably folded back. The both side portions 2C of the screen 2 can be accurately and smoothly directed toward the screen moving portion 27. It can also be moved. The screen 4 can be smoothly opened and closed by reliably swinging the end portion 4A of the upper rail 4 between the pair of wall portions 32 and 33.

  In addition, the screen apparatus 1 can be provided in the window frame 10 of various windows, and is arrange | positioned at the indoor side R or the outdoor side S of the shoji 16 according to the kind of window. The screen device 1 may be provided in an opening other than the opening 11 of the window frame 10. The screen 2 of the screen device 1 may be an openable / closable member (for example, cloth, sheet) other than the net. Only the base member 51 may be used as the folding member 50 without attaching the cover member 60 to the base member 51 of the folding member 50. Even in this way, the screen device 1 can be implemented, and the side portion 2C of the screen 2 can be wound around the winding portion 52 and folded back by the folding member 50.

  When the screen 2 is opened, the upper rail 4 may be pushed down and moved downward, and when the screen 2 is closed, the lower rail 5 may be pushed down and moved downward. In this case, the upper rail 4 and the lower rail 5 are operation bars used for the opening / closing operation of the screen 2 and also follow-up bars that move following the movement of the operation bar and the screen 2. When opening the screen 2, the upper rail 4 is moved downward, and the screen 2 is pulled downward by the upper rail 4. Along with this, the screen 2 pulls the lower rail 5 upward, and the lower rail 5 moves upward. As described above, the screen 2 is opened and closed in various manners using the upper rail 4 and the lower rail 5. Further, when the screen 2 is opened and closed, the end portion 4 </ b> A of the upper rail 4 may contact the second wall portion 33 of the upper rail guide 30 and be guided by the second wall portion 33.

  DESCRIPTION OF SYMBOLS 1 ... Screen apparatus, 2 ... Screen, 3 ... Screen frame, 4 ... Upper bar, 5 ... Lower bar, 10 ... Window frame, 11 ... Opening part, 12. ..Window upper frame, 13 ... Window lower frame, 14 ... Window vertical frame, 15 ... Opening / closing window, 16 ... Shoji, 20 ... Upper frame, 21 ... Vertical frame, 22 ...... Fastener half, 23 ... Element, 24 ... Inner rail, 25 ... Slit, 26 ... Hollow part, 27 ... Screen moving part, 28 ... Lower rail guide, 30 ... Upper guide, 31 ... Groove, 32 ... First wall, 33 ... Second wall, 35 ... Upper cap, 36 ... Protrusion, 37 ... Abutting portion, 40... Lower rail cap, 41... Sliding portion, 42... Locking portion, 43... Held portion, 44. Holding part 47 ... vertical frame cap, 48 ... locking projection, 50 ... folding member, 51 ... base member, 52 ... winding part, 53 ... guide part, 54 ... Contact part, 60 ... cover member, 61 ... passage part, R ... indoor side, S ... outdoor side.

Claims (7)

A pair of opposing vertical frames;
An openable and closable screen that folds at the upper end of the pair of vertical frames and moves along the pair of vertical frames;
An upper cross connected to the upper end of the screen and moving along the pair of vertical frames;
A lower rail connected to the lower end of the screen and moving along the pair of vertical frames;
A screen device comprising:
A pair of folding members provided at the upper ends of the pair of vertical frames, each of which is wound around both sides of the screen, and between the upper beam and the lower beam, folding both sides of the screen together with the screen; ,
An upper rail guide that is provided on the pair of vertical frames, guides both ends of the upper rail that moves along the pair of vertical frames, and allows the upper rail to swing;
A screen device equipped with. The screen device according to claim 1,
The pair of folding members includes a contact portion that contacts the upper rail and stops the upper rail when the screen is closed. The screen device according to claim 1 or 2,
The pair of folding members are screen devices having passage portions that guide each side of the screen through each side. The screen device according to claim 3, wherein
A screen moving portion provided on the pair of vertical frames and moving while holding each of both sides of the screen between the pair of folding members and the lower rail;
The passage portion of the pair of folding members guides each of both side portions of the screen toward the screen moving portion. The screen device according to any one of claims 1 to 4,
The upper rail guide has a groove portion that accommodates and guides an end portion of the upper rail, and a pair of wall portions that define the groove portion, and the end portion of the upper rail contacts one of the wall portions. In this state, a screen device is formed in which a gap is formed between the other wall portion and the end portion of the upper rail. The screen device according to any one of claims 1 to 5,
A screen device comprising a lower beam holding portion for holding the lower beam and maintaining the screen in a closed state. The screen device according to any one of claims 1 to 6,
The upper beam is a screen device having upper beam caps provided at both ends and guided by the upper beam guide.

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