Fitting

Abstract

To provide a fitting enabling a screen door to be easily suspended in an opening frame having a rail part.SOLUTION: A fitting comprises: an opening frame constituted by assembling an upper frame having an upper rail part, a lower frame having a lower rail part, and a pair of right and left vertical frames into a frame shape; and a screen door that is movably mounted on the opening frame. The screen door comprises: an upper fitting part fitting to the upper rail part; a door roller unit including a door roller, which is supported by the lower rail part and movable; and a guide part that engages with the lower frame from outdoor side in a depth direction and positions the door roller at a first depth position in the depth direction, when the upper fitting part fits to the upper rail part at a second height position above a first height position, where the first height position is a mounting position in a vertical direction and the first depth position is a mounting position in the depth direction of the screen door in which the upper engaging part fits to the upper rail part and the door roller is supported by the lower rail part.SELECTED DRAWING: Figure 9

Description

[Technical field]

[0001] The present disclosure relates to building materials. [Background technology]

[0002] When hanging a screen door onto a sash frame, the screen door body is tilted diagonally relative to the window surface, the screen door groove is fitted into the upper rail section, and then the screen door wheels are fitted into the lower rail section and landed.

[0003] For example, Patent Document 1 discloses a device for preventing a screen door hung on a sash frame from floating upward due to a strong wind or the like and coming off the rail. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2016-53266 A Summary of the Invention [Problem to be solved by the invention]

[0005] Generally, since a screen door weighs only a few kilograms and is light, the procedure is to manually support the door roller while fitting it into the lower rail. It is difficult for the worker who suspends the door to see the fitting position of the door roller and the lower rail from their own line of sight, and even if it feels like it is fitted, it may not actually be properly fitted into the lower rail. If the screen door is run while the roller is not fitted into the lower rail, the problem occurs that it will fall off.

[0006] Because screen doors are light in weight and rarely need to be removed once installed, there has not been sufficient technology available to improve the reliability of the way they are hung.

[0007] The present disclosure has been made in consideration of the above points, and aims to provide a fixture that allows a screen door to be easily hung on an opening frame having a rail portion. [Means for solving the problem]

[0008] A first aspect of the present disclosure is a fitting comprising an opening frame formed by framing an upper frame having an upper rail portion, a lower frame having a lower rail portion, and a pair of left and right vertical frames all around, and a screen door movably attached to the opening frame, wherein the screen door has an upper fitting portion that fits into the upper rail portion, a wheel unit including a wheel that is supported on the lower rail portion and can move, and a guide portion that engages with the lower frame from the outdoors side of the projection direction when the upper fitting portion fits into the upper rail portion and the vertical position of the mounting position of the screen door where the wheel is supported on the lower rail portion is defined as a first height position and the position in the projection direction is defined as the first projection position, and when the upper fitting portion fits into the upper rail portion at a second height position higher than the first height position, the guide portion engages with the lower frame from the outdoors side of the projection direction to position the wheel to the first projection position in the projection direction. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is a diagram showing an embodiment of the present disclosure, showing a fitting as viewed from the outdoor side. [Diagram 2] FIG. [Diagram 3] 1 is a perspective view of the left end portion of the lower rail portion. FIG. [Figure 4] FIG. 4 is an exploded perspective view of the roller unit as viewed from the outdoor side. [Diagram 5] FIG. 4 is an exploded perspective view of the door roller unit as viewed from the indoor side. [Figure 6] FIG. 4 is a front view of the door roller unit as seen from the indoor side. [Figure 7] A cross-sectional view showing the upper insertion groove and the upper rail portion when hanging. [Figure 8] 11 is a cross-sectional view showing the roller unit and the lower rail portion when suspended. FIG. [Figure 9] 11 is a cross-sectional view showing the roller unit and the lower rail portion when suspended. FIG. [Figure 10] FIG. 13 is a diagram showing an example of a tapered portion as viewed from above. [Figure 11] FIG. 13 is a diagram showing an example of a tapered portion as viewed from above. [Figure 12] 11 is a cross-sectional view of the roller unit at the position of the protrusion and the water drainage opening. FIG. [Figure 13] A cross-sectional view showing a second embodiment of the fitting of the present disclosure. [Figure 14] FIG. 11 is a perspective view showing a modified example of the door roller unit. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Hereinafter, an embodiment of the fittings of the present disclosure will be described with reference to Figures 1 to 14. The following embodiment shows one aspect of the present disclosure, does not limit the disclosure, and can be modified as desired within the scope of the technical ideas of the present disclosure. In addition, in the following drawings, the scale of each structure is different from the actual structure in order to make each configuration easier to understand.

[0011] [First embodiment of fittings] As shown in Fig. 1, the fitting 1 is installed, for example, in an opening in the exterior wall of a building such as a detached house. The fitting 1 is a sliding window that separates the interior and exterior sides of the building. The fitting 1 is configured by supporting a paper screen 20 and a screen door 30 movably on an opening frame 10. The paper screen 20 and the screen door 30 correspond to sliding doors.

[0012] The opening frame 10 is formed by a framework on all four sides: an upper frame 11, a lower frame 12, and left and right vertical frames 13. The opening frame 10 is provided along the edge of an opening in the exterior wall of a building.

[0013] As shown in Fig. 2, the upper frame 11 has an upper rail portion 11a for the shoji screen and an upper rail portion 11b for the screen door. The upper rail portion 11a for the shoji screen guides the upper portion of the shoji screen 20 so that it can move left and right. The upper rail portion 11b for the screen door guides the upper portion of the screen door 30 so that it can move left and right.

[0014] The bottom frame 12 has a bottom rail portion 12a for the shoji screen and a bottom rail portion 12b for the screen door 30. The bottom rail portion 12a for the shoji screen guides the lower portion of the shoji screen 20 so that it can move left and right. The bottom rail portion 12b for the screen door guides the lower portion of the screen door 30 so that it can move left and right. The bottom rail portion 12b guides the movement of the screen door 30. The bottom rail portion 12b has a protrusion 12c and a water drainage opening 12d. The protrusion 12c is located at the upper end of the bottom rail portion 12b. The protrusion 12c has a circular cross section.

[0015] The drainage openings 12d are disposed near both the left and right ends of the lower rail portion 12b, respectively, at positions away from the vertical frame 13. The drainage openings 12d are disposed symmetrically on the lower rail portion 12b in the left-right direction. Below, the left drainage opening 12d will be described, and a description of the right drainage opening 12d will be omitted.

[0016] The drainage opening 12d is a rectangle extending in the left-right direction. The drainage opening 12d may be a rectangle extending in the up-down direction, but it is preferable that it extends in the left-right direction from the viewpoint of drainage described later. The drainage opening 12d is disposed in a position lower than the protrusion 12c in the lower rail portion 12b and higher than the bottom wall 12e in the lower frame 12. The drainage opening 12d is an opening for draining rainwater and the like that has accumulated in the space surrounded by the lower rail portion 12a for the shoji screen, the lower rail portion 12b, and the bottom wall 12e. The drainage opening 12d penetrates the lower rail portion 12b in the forward direction.

[0017] The shoji screen 20 is constructed by fitting glass 24 inside a frame body made of an upper frame 21, a lower frame 22, and a pair of vertical frames 23 on the left and right. The shoji screen 20 is installed in a set both indoors and outdoors. The upper rail section 11a for the shoji screen is inserted into the upper insertion groove 21a formed in the upper frame 21 of the shoji screen 20. The lower rail section 12a for the shoji screen is inserted into the lower insertion groove 22a formed in the lower frame 22 of the shoji screen 20. The shoji screen roller 25, which is rotatably arranged in the lower insertion groove 22a of the lower frame 22, is placed on the upper surface of the lower rail section 12a for the shoji screen so as to be able to roll. The shoji screen 20 can be opened and closed along the longitudinal direction of the upper frame 11 and the lower frame 12, which is the viewing direction.

[0018] The screen door 30 is a surface material in which a screen 34 is stretched inside a frame assembled on all four sides by a screen door upper frame 31, a screen door lower frame 32, and a pair of left and right screen door vertical frames 33. The screen door 30 is placed on the outdoor side of the outdoor-facing shoji screen 20. The screen door 30 has a wheel unit 50 including a wheel 51. The wheel 51 is freely rotatable around an axis extending in the forward direction.

[0019] In the screen door 30, the upper rail portion 11b for the screen door is inserted into the upper insertion groove 31a for the screen door formed in the upper frame 31 for the screen door. The upper insertion groove 31a fits into the upper rail portion 11b. The upper insertion groove 31a corresponds to the upper fitting portion.

[0020] The screen door 30 has a screen door lower rail portion 12b inserted into a screen door lower insertion groove 32a formed in the screen door lower frame 32. A roller unit 50 is provided in the screen door lower insertion groove 32a. The screen door 30 has a roller 51 that runs along the lower rail portion 12b. The screen door 30 has the roller 51 rollably placed on the upper surface of the protrusion 12c of the lower rail portion 12b. The screen door 30 can be opened and closed in the left-right direction along the protrusion 12c of the lower rail portion 12b.

[0021] The roller units 50 are provided at both left and right ends of the screen door bottom frame 32. The roller units 50 are arranged symmetrically in the left and right directions on the screen door bottom frame 32. Below, the left roller unit 50 will be described, and a description of the right roller unit 50 will be omitted.

[0022] 3 to 5, the door roller unit 50 has a door roller 51, an inner frame 52, a middle frame 53, an outer frame 54, and a torsion coil spring 55. In Fig. 3, the upper screen door frame 31, the lower screen door frame 32, and the pair of left and right screen door vertical frames 33 of the screen door 30 are not shown.

[0023] The door roller 51 is fixed to the inner frame 52 by the rotating shaft 51a so as to be rotatable from the indoor side. The door roller 51 has a rolling surface 51b and a flange 51c. The rolling surface 51b is an outer peripheral surface centered on the rotating shaft 51a. The rolling surface 51b is a surface that rolls on the upper surface of the protrusion 12c of the lower rail portion 12b. The flange 51c extends from the indoor end of the rolling surface 51b to the outside in the radial direction centered on the rotating shaft 51a. The flange 51c has an engagement surface 51d. When the door roller 51 rolls on the upper surface of the protrusion 12c on the rolling surface 51b, the engagement surface 51d engages with the lower rail portion 12b from the indoor side to guide the movement of the screen door 30, as shown in FIG. 2.

[0024] When the roller unit 50 rolls on the upper surface of the projection 12c on the rolling surface 51b, a guide portion 61 (described later) provided on the outer frame 54 engages with the lower rail portion 12b from the outdoor side to guide the movement of the screen door 30. When the roller unit 50 is in a state in which the flange portion 51c and the guide portion 61 are engaged with and guided by the lower rail portion 12b from both sides in the forward direction, the rolling surface 51b can stably roll and travel on the upper surface of the projection 12c.

[0025] The inner frame 52 is disposed at the center side in the left-right direction in the roller unit 50. The inner frame 52 has a protrusion 52a, an engagement groove 52b, an inner frame body 52c, and a protruding wall 52d. The inner frame body 52c and the protruding wall 52d are disposed on the outdoor side of the lower rail portion 12b. The protruding wall 52d protrudes to the left from the inner frame body 52c. The width dimension of the protruding wall 52d in the forward direction is shorter than the width dimension of the inner frame body 52c. The outdoor side surface of the protruding wall 52d is located closer to the indoor side than the outdoor side surface of the inner frame body 52c. The indoor side surface of the protruding wall 52d is located closer to the outdoor side than the indoor side surface of the inner frame body 52c.

[0026] The protrusion 52a is disposed at the lower end of the left end side of the protruding wall 52d. The protrusion 52a protrudes from the protruding wall 52d on both sides in the forward direction. The protrusions 52a are each semicircular columnar when viewed in the forward direction. The torsion coil spring 55 is attached to the outdoor protrusion 52a from the outdoor side. The engagement groove 52b is a groove recessed from the outdoor side to the indoor side of the protruding wall 52d. The engagement groove 52b extends linearly from the right end of the protruding wall 52d in the upper right direction. One spring piece 55a of the torsion coil spring 55 is inserted into the engagement groove 52b from the outdoor side. The other spring piece 55b of the torsion coil spring 55 is located to the left of the protruding wall 52d and extends linearly in the upper left direction.

[0027] The middle frame 53 is disposed on the left side of the inner frame body 52c. The middle frame 53 is disposed on the outdoor side of the lower rail portion 12b. The middle frame 53 has a pair of retaining walls 53a, a connecting wall 53b, and a connecting wall 53c. The pair of retaining walls 53a face each other with a gap in the projection direction. The protruding wall 52d is inserted from the right side into the gap between the pair of retaining walls 53a. The pair of retaining walls 53a retain the protruding wall 52d from the outside in the projection direction. The pair of retaining walls 53a each have an engagement portion 53d and a fitting hole 53e. The engagement portion 53d is provided at the upper end of the retaining wall 53a and is a surface facing the right side. The fitting hole 53e penetrates the pair of retaining walls 53a coaxially in the projection direction. The fitting hole 53e is a circular through hole when viewed in the projection direction. When the protruding wall 52d is inserted into the gap between the pair of holding walls 53a, the protrusion 52a of the inner frame 52 is inserted from the inside into the fitting hole 53e and rotatably fits into the fitting hole 53e. The middle frame 53 with the protrusion 52a inserted into the fitting hole 53e can rotate around the protrusion 52a relative to the protruding wall 52d.

[0028] The connecting wall 53b connects the pair of holding walls 53a at the right end on the upper side. The connecting wall 53c connects the pair of holding walls 53a at the left end. The other spring piece 55b of the torsion coil spring 55 engages with the connecting wall 53c from the right side. The other spring piece 55b engages with the connecting wall 53c from the right side, and the protruding wall 52d with which one spring piece 55a engages is subjected to a circumferential urging force on the side away from the other spring piece 55b with the protruding portion 52a as the center. When the door roller unit 50 is fixed to the screen door 30, the door roller 51 is applied to the inner frame 52 in a direction in which it moves downward with the protruding portion 52a as the center, and presses against the lower rail portion 12b. The connecting wall 53c has a cylindrical portion 53f extending to the left side.

[0029] The connecting wall 53c has a cylindrical portion 53f and a rectangular column portion 53g. The cylindrical portion 53f is cylindrical and extends leftward from an upper position of the connecting wall 53c. An internal thread is formed on the inner peripheral surface of the cylindrical portion 53f. The rectangular column portion 53g is rectangular and extends leftward from a position lower than the cylindrical portion 53f of the connecting wall 53c.

[0030] The outer frame 54 is disposed on the left side of the middle frame 53. The outer frame 54 is disposed on the outdoor side of the lower rail portion 12b. The outer frame 54 has a vertical wall 54a, an engagement wall 54b, and a shielding portion 54c.

[0031] The vertical wall 54a is disposed on the left side of the outer frame 54. The vertical wall 54a has a rectangular column shape extending in the up-down direction. The vertical wall 54a has a through hole 54d, a through hole 54e, and a through hole 54g.

[0032] The through-hole 54d is located on the upper side of the vertical wall 54a. The through-hole 54d penetrates the vertical wall 54a in the left-right direction. As shown in Fig. 3, an attachment screw 56 is inserted into the through-hole 54d from the left side. The door roller unit 50 is fixed to the bottom frame 12 by the attachment screw 56 inserted into the through-hole 54d.

[0033] The cylindrical portion 53f of the middle frame 53 is inserted into the through hole 54e from the right side. The adjustment screw 57 is screwed into the cylindrical portion 53f inserted into the through hole 54e from the left side. The adjustment screw 57 screwed into the cylindrical portion 53f from the left side can protrude to the right side from the connecting wall 53c of the middle frame 53. The tip of the adjustment screw 57 protruding to the right side from the connecting wall 53c is located above the protrusion 52a in the protruding wall 52d and abuts against the side surface facing the left side. The protruding wall 52d rotates around the protrusion 52a depending on the protrusion amount of the adjustment screw 57. The inner frame 52 rotates via the protruding wall 52d, causing the door roller 51 to rotate around the protrusion 52a.

[0034] As the roller 51 rotates around the protrusion 52a, the height of the screen door bottom frame 32 changes at the left-right position where the roller 51 is supported by the lower rail portion 12b. For example, when the roller 51 rotates in a direction including a component facing downward, the screen door bottom frame 32 rises at the left-right position where the roller 51 is supported by the lower rail portion 12b. For example, when the roller 51 rotates in a direction including a component facing upward, the screen door bottom frame 32 descends at the left-right position where the roller 51 is supported by the lower rail portion 12b. By adjusting the amount of screwing in of the adjustment screw 57, it is possible to adjust the height of the screen door bottom frame 32 at the left-right position of the roller 51.

[0035] The through hole 54g has a rectangular shape when viewed in the left-right direction. The rectangular column portion 53g of the inner frame 53 is inserted into the through hole 54g from the right side.

[0036] The engagement wall 54b extends to the right from the vertical wall 54a. The engagement wall 54b has a claw portion 54f at a tip thereof. The claw portion 54f engages with the engagement portion 53d of the inner frame 53 from the right side. By the claw portion 54f engaging with the engagement portion 53d from the right side, the inner frame 53 and the outer frame 54 are integrated in the left-right direction.

[0037] The shielding portion 54c is disposed at a position farther outdoors than the lower rail portion 12b. When the rolling surface 51b of the door roller 51 is supported on the upper surface of the protrusion 12c, the shielding portion 54c is formed to a size including an area overlapping with the outer shape of the water drainage opening 12d when facing the water drainage opening 12d in the forward direction as shown in Fig. 6. The shielding portion 54c is formed to a size that blocks and shields the water drainage opening 12d at a position farther outdoors.

[0038] The shielding portion 54c has a guide portion 61. The guide portion 61 engages with the lower frame 12 from the outdoor side in the projection direction. The guide portion 61 engages with the lower rail portion 12b from the outdoor side to guide the movement of the screen door 30. The guide portion 61 has a rib-shaped protrusion portion 62 that protrudes from the shielding portion 54c to the indoor side. The protrusion portion 62 extends in a direction that includes a component facing downward. The protrusion portion 62 extends in the up-down direction. As long as the protrusion portion 62 is configured to extend in a direction that includes a component facing downward, it may be configured to extend in an oblique direction toward the left or right as it approaches the downward side, for example.

[0039] The tip of the projection 62 is located on the indoor side of the shielding portion 54c. The projection 62 can engage with the lower rail portion 12b from the outdoor side when the roller 51 rolls on the upper surface of the projection 12c on the rolling surface 51b. When the roller unit 50 is in a state where the flange 51c and the projection 62 are engaged with and guided by the lower rail portion 12b from both sides in the forward direction, the rolling surface 51b can stably roll on the upper surface of the projection 12c.

[0040] 2, the position of the screen door 30 where the upper insertion groove 31a corresponding to the upper fitting portion fits into the upper rail portion 11b and the door roller 51 is supported by the lower rail portion 12b is defined as the installation position. The vertical position of the screen door 30 at the installation position is defined as the first height position. The position of the screen door 30 in the projection direction at the installation position is defined as the first projection position.

[0041] When the screen door 30 is hung, as shown in Fig. 7, the screen door 30 is in a position in which the screen door upper frame 31 is tilted toward the interior with respect to the window surface, and the upper rail portion 11b is inserted and fitted into the upper insertion groove 31a at a second height position that is higher than the first height position. As an example, the second height position is a position where the tip of the upper rail portion 11b contacts the bottom of the upper insertion groove 31a. As shown in Fig. 6, the vertical distance L1 from the upper end of the lower rail portion 12b at the mounting position to the lower end of the protrusion portion 62, which is the guide portion 61, is longer than the vertical distance L2 between the first height position and the second height position, as shown in Fig. 2.

[0042] At the second height position, when the screen door 30 is tilted relative to the window surface, as shown in FIG. 8, the indoor-side lower end of the screen door bottom frame 32 is positioned above the protrusion 12c of the lower rail portion 12b.

[0043] With upper rail portion 11b inserted and fitted into upper insertion groove 31a at the second height position, when bottom frame 32 of screen door 30 with top frame 31 for screen door tilted indoors is moved indoors, protrusion 62 engages with lower rail portion 12b from the outdoor side, as shown in Figure 9. When bottom frame 32 for screen door is moved indoors, bottom end of bottom frame 32 for screen door on the indoor side does not come into contact with protrusion 12c of lower rail portion 12b, and can move indoors beyond lower rail portion 12b.

[0044] When the protrusion 62 engages with the lower rail portion 12b from the outdoor side at the second height position, the roller 51 is located at the first expected position in the expected direction. The protrusion 62 engages with the lower rail portion 12b from the outdoor side to position the roller 51 at the first expected position.

[0045] The positioning of the roller 51 at the first prospective position will be described in detail. At the second height position, when the protrusion 62 engages with the lower rail portion 12b from the outdoor side, the screen door 30 becomes parallel to the window surface. When the screen door 30 is parallel to the window surface, the shortest distance in the prospective direction from the tip of the protrusion 62 to the engagement surface 51d of the roller 51 is longer than the distance from the tip of the protrusion 62 to the indoor surface 12f of the lower rail portion 12b. Since the shortest distance in the prospective direction from the tip of the protrusion 62 to the engagement surface 51d of the roller 51 is longer than the distance from the tip of the protrusion 62 to the indoor surface 12f of the lower rail portion 12b, when the tip of the protrusion 62 engages with the lower rail portion 12b from the outdoor side, the engagement surface 51d of the roller 51 is located closer to the indoor side than the indoor surface 12f of the lower rail portion 12b. Since the engagement surface 51d of the roller 51 is positioned on the indoor side of the indoor surface 12f of the lower rail portion 12b, when the screen door 30 is lowered from the second height position to the first height position, the rolling surface 51b of the roller 51 contacts the protrusion 12c on the lower rail portion 12b from above.

[0046] The protrusion 62 engages with the lower rail portion 12b from the outside side, and the rollers 51 lower the screen door 30, which is positioned at the first expected position, from the second height position to the first height position, so that the screen door 30 reaches an installation position where the rollers 51 are supported by the lower rail portion 12b, and the hanging of the screen door 30 is completed.

[0047] As shown in Fig. 10, the protrusion 62 has a tapered portion 62a at the tip on the indoor side. The tapered portion 62a has a left-right dimension that decreases toward the indoor side. The tapered portion 62a can be an arc shape in which the left-right dimension of the protrusion 62 decreases in a curved manner toward the indoor side. The tapered portion 62a can be a triangular shape in which the left-right dimension of the protrusion 62 decreases in a linear manner toward the indoor side, as shown in Fig. 11.

[0048] Because the protrusion 62 has a tapered portion 62a at its indoor tip, the frictional resistance generated when the door roller 51 rolls on the upper surface of the protrusion 12c at the rolling surface 51b and engages with the lower rail portion 12b from the outdoor side can be reduced.

[0049] The protrusion 62 can contact the water located at the drain opening 12d and guide the movement of the water. As shown in FIG. 12, the water W that has accumulated on the indoor side of the lower rail portion 12b reaches the drain opening 12d, but is stopped by surface tension. The water W that stops at the drain opening 12d has a shape that bulges out in a cross section like an arc due to surface tension. The water W that stops at the drain opening 12d protrudes most toward the outdoor side at the vertical center position of the drain opening 12d. By disposing the protrusion 62 at least at the vertical center position of the drain opening 12d, the water W that stops at the drain opening 12d comes into contact with the protrusion 62. By coming into contact with the protrusion 62, the water W located at the drain opening 12d is drawn into the protrusion 62 and drained from the drain opening 12d. By extending the protrusion 62 in a direction that includes a component facing downward, the water W drained from the drain opening 12d is guided by the protrusion 62 and flows downward by its own weight.

[0050] The protrusions 62 are arranged with gaps in the left-right direction, which is the width direction of the protrusions 62. The roller unit 50 of the embodiment has two protrusions 62. By arranging the protrusions 62 with gaps in the left-right direction, for example, if water is present in the gaps between the protrusions 62, the water located between the protrusions 62 can be drawn in when it comes into contact with the water W that stops at the water drainage opening 12d, thereby facilitating water drainage.

[0051] The protrusion 62 is disposed at least from the center position to the bottom end position of the water drainage opening 12d in the vertical direction. The top end position of the protrusion 62 shown in Fig. 12 is the top end position of the water drainage opening 12d. The bottom end position of the protrusion 62 is lower than the bottom end position of the water drainage opening 12d.

[0052] The protrusion 62 is preferably made of a resin material. Since a resin material has self-lubricating properties, by making the protrusion 62 of a resin material, it is possible to reduce frictional resistance when the protrusion 62 engages with and comes into contact with the lower rail portion 12b from the outdoor side.

[0053] In the embodiment of the fixture 1, when the upper insertion groove 31a is engaged with the upper rail portion 11b at a second height position higher than the first height position, a guide portion 61 engages with the lower rail portion 12b from the outdoor side in the projection direction to position the roller 51 at the first projection position in the projection direction, so that the screen door 30 can be easily hung on the opening frame 10 having the upper rail portion 11b and the lower rail portion 12b.

[0054] [Second embodiment of fittings] A second embodiment of the fitting 1 of the present disclosure will be described with reference to Fig. 13. In Fig. 13, the same elements as those of the first embodiment shown in Figs. 1 to 12 are given the same reference numerals, and the description thereof will be omitted.

[0055] As shown in Fig. 13, the roller unit 50 in the fitting 1 has a roller portion 63 as a guide portion 61 on the shielding portion 54c. The roller portion 63 is provided rotatable about an axis 63a extending in the vertical direction. The outermost periphery of the roller portion 63 can roll on the lower rail portion 12b from the outdoor side. The other configurations are the same as those in the first embodiment.

[0056] In the door roller unit 50, when the door roller 51 rolls on the upper surface of the projection 12c on the rolling surface 51b, the roller portion 63 can roll on the lower rail portion 12b from the outdoor side. In the door roller unit 50, in a state in which the flange portion 51c and the roller portion 63 are engaged with and guided by the lower rail portion 12b from both sides in the projection direction, the rolling surface 51b can stably roll on the upper surface of the projection 12c.

[0057] In the fitting 1, when the upper insertion groove 31a fits into the upper rail portion 11b at a second height position higher than the first height position during hanging of the screen door 30, the roller portion 63 engages with the lower rail portion 12b from the outdoor side in the projection direction, and the door roller 51 can be positioned at the first projection position in the projection direction. By lowering the screen door 30 positioned at the first projection position by the door roller 51 from the second height position to the first height position, the rolling surface 51b of the door roller 51 comes into contact with and is supported from above by the protrusion 12c on the lower rail portion 12b, and the screen door 30 can be positioned at the installation position.

[0058] In the embodiment of the fixture 1, in addition to obtaining the same action and effect as the first embodiment, since the roller portion 63 rolls on the lower rail portion 12b from the outdoor side, it is possible to further reduce the frictional resistance when the lower rail portion 12b comes into contact with the screen door 30 from the outdoor side when the screen door 30 is opened or closed.

[0059] Although the preferred embodiments of the present disclosure have been described above with reference to the accompanying drawings, it goes without saying that the present disclosure is not limited to the examples. The shapes and combinations of the components shown in the above examples are merely examples, and various modifications can be made based on design requirements, etc., without departing from the spirit of the present disclosure.

[0060] For example, in the fitting 1 of the first embodiment, the guide portion 61 engages with the lower rail portion 12b from the outdoor side to guide the movement of the screen door 30, but the present invention is not limited to this configuration. For example, the guide portion 61 may be configured to position the door roller 51 at a first expected position in the expected direction by engaging with a portion of the lower frame 12 different from the lower rail portion 12b from the outdoor side.

[0061] In the fitting 1 of the first embodiment, a configuration in which the resin protrusion 62 engages with the lower rail portion 12b from the outdoor side in the projection direction to position the roller 51 at the first projection position in the projection direction has been exemplified, but this configuration is not limited to this. For example, in a configuration in which the guide portion 61 does not engage with the lower rail portion 12b, but engages with a portion of the lower frame 12 different from the lower rail portion 12b from the outdoor side to position the roller 51 at the first projection position in the projection direction, the guide portion 61 may be made of metal.

[0062] For example, as shown in FIG. 14, a crimping shaft 64a may be provided on a crimping portion 54h protruding from a shielding portion 54c toward the indoor side, and a metal protrusion portion 64 serving as a guide portion 61 fixed by, for example, thermal crimping may be provided.

[0063] In the fitting 1 of the first embodiment, a configuration in which the guide portion 61 is provided on the shielding portion 54c of the outer frame 54 has been exemplified, but the present invention is not limited to this configuration. For example, the guide portion 61 may be configured to protrude from the middle frame 53 to the indoor side, or the guide portion 61 may be configured to protrude from the inner frame 52 to the indoor side. The guide portion 61 may be configured to be provided on two or more of the inner frame 52, the middle frame 53, and the outer frame 54. When the guide portion 61 is provided on two or more of the inner frame 52, the middle frame 53, and the outer frame 54, it is possible to disperse the impact when the guide portion 61 engages with the bottom frame 12 when the screen door 30 is hung, and it is possible to extend the life of the guide portion 61.

[0064] In the embodiment of the fitting 1, the guide portion 61 is provided on the roller unit 50, but the present invention is not limited to this configuration. For example, the guide portion 61 may be provided on the screen door lower frame 32 as long as the guide portion 61 engages with the lower frame 12 from the outdoor side when the screen door 30 is hung and positions the roller 51 at the first projection position in the projection direction. [Explanation of symbols]

[0065] Reference Signs List 1...door fitting, 10...opening frame, 11...upper frame, 11b...upper rail portion, 12...lower frame, 12b...lower rail portion, 13...vertical frame, 30...screen door, 31a...upper insertion groove, 50...door roller unit, 51...door roller, 51c...flange portion, 51d...engagement surface, 54c...shielding portion, 61...guide portion, 62, 64...projection portion, 63...roller portion, 63a...axis line

Claims

1. An opening frame formed by framing an upper frame having an upper rail portion, a lower frame having a lower rail portion, and a pair of left and right vertical frames on all four sides; A screen door movably attached to the opening frame; Equipped with The screen door is an upper fitting portion that fits into the upper rail portion; A roller unit including a roller that is supported by the lower rail portion and is movable; a guide portion that engages with the lower frame from the outdoor side in the projection direction to position the door roller at the first projection position in the projection direction when the upper fitting portion is fitted into the upper rail portion and the vertical position of the mounting position of the screen door where the door roller is supported by the lower rail portion is defined as a first height position and a position in the projection direction is defined as a first projection position, and when the upper fitting portion is fitted into the upper rail portion at a second height position higher than the first height position, the guide portion positions the door roller at the first projection position in the projection direction by engaging with the lower frame from the outdoor side in the projection direction; A fixture having the above features.

2. a vertical distance from an upper end of the lower rail portion to a lower end of the guide portion in the mounting position is longer than a vertical distance between the first height position and the second height position; The fixture according to claim 1.

3. The door roller has a flange portion that engages with the lower rail portion from the indoor side in the projection direction to guide the movement of the screen door, The guide portion engages with the lower rail portion from the outdoor side to guide the movement of the screen door.

3. The fitting according to claim 1 or 2.

4. The flange portion has an engagement surface facing the lower rail portion on the indoor side, When the guide portion engages with the lower rail portion from the outdoor side, the shortest distance in the prospective direction from the tip of the guide portion to the engagement surface is longer than the distance from the tip of the guide portion to the indoor surface of the lower rail portion. The fitting according to claim 3.

5. The guide portion has a rib-shaped protrusion portion protruding toward the indoor side in the projection direction, 3. The fitting according to claim 1 or 2.

6. The protrusion has a tapered portion at a tip on the indoor side. The fitting according to claim 5.

7. The protrusion is formed of a resin material. The fitting according to claim 6.

8. The guide portion is a roller portion having an outer periphery that can roll on the lower rail portion from the outdoor side; 3. The fitting according to claim 1 or 2.

9. The guide portion is provided on the door roller unit.

3. The fitting according to claim 1 or 2.

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