JP7500284B2 - Shoji screens and fittings - Google Patents

Description

The present disclosure relates to shoji screens and fittings.

For example, a fitting such as a window comprises a frame body provided at an opening of a building and a shoji screen housed in the frame body. The shoji screen comprises a frame body formed to match the shape of the frame body and a glass sheet housed in the frame body. A wheel is provided on the lower frame of the frame body on which the weight of the glass sheet is applied. The wheel can run along the direction in which the rail section extends while contacting, for example, a rail section formed on the lower frame in which the lower frame is housed. For example, Patent Document 1 discloses a large opening sash (fitting) that comprises multiple wheel bodies rotatably arranged within the lower frame and an externally movable shoji screen (shoji screen) placed on the multiple wheel bodies.

International Publication No. WO 2017/110473

The force exerted on the user when opening and closing a shoji screen varies depending on the diameter of the roller. Generally, the larger the diameter of the roller, the smaller the opening and closing force, making it easier for the user to open and close the shoji screen. Also, the larger the diameter of the roller, the fewer the number of rotations of the roller per unit distance, making the roller more durable. However, if the size of the frame is constant, the larger the diameter of the roller, the smaller the glass plate becomes, and the higher the roller cover and bottom frame become, reducing the visibility and insulation of the shoji screen.

The present disclosure provides a shoji screen and fittings that do not require excessively large opening and closing forces, and that easily maintain the durability of the rollers, the visibility of the screen, and the insulation properties.

The shoji screen of the present disclosure comprises a roller device including a roller case configured to be installed on the bottom frame of the frame body of the shoji screen, and a roller that is housed and supported in the roller case and is rotatably mounted on a rail section of the bottom frame of the frame body in which the shoji screen is housed, the upper end of which protrudes from the top surface of the roller case, a frame body having a bottom frame to which the roller device is attached, and a panel body housed in the frame body, the lower frame being formed with a roller arrangement area in which the roller device is arranged, and a panel body mounting wall section provided above the roller arrangement area and on which the lower end of the panel body is arranged, the upper end of the roller protruding above a portion of the panel body mounting wall section .

FIG. 2 is a front view of the fitting according to the present disclosure. FIG. 2 is a front view of the shoji screen in the region R shown in FIG. 1 . 3 is a cross-sectional view of the shoji screen taken along line CC in FIG. 2.

Below, the embodiments of the door rollers, shoji screens, and fittings according to the present disclosure will be described with reference to the drawings.

The fixture 10 of this embodiment is a sliding window as shown in FIG. 1. The fixture 10 is installed in an opening 15 formed in a wall of a building. The fixture 10 is a window called a waist window, and is installed at a position above the floor surface G. The fixture 10 comprises a frame 11 and a pair of shoji screens 21, 22.

In the following description, the direction connecting the outdoors and the indoors, and the direction perpendicular to the wall, are referred to as the depth direction. The horizontal direction connecting the left and right sides when viewed from the depth direction is referred to as the left-right direction. The direction perpendicular to the floor surface G is referred to as the up-down direction.

The frame body 11 is formed into a four-sided frame shape to match the rectangular opening 15 when viewed from the front. The frame body 11 has an upper frame 13, a lower frame 14, and a pair of vertical frames 17, 18. The upper frame 13 and the lower frame 14 extend in the left-right direction. The pair of vertical frames 17, 18 extend in the up-down direction, connecting both ends of the upper frame 13 and both ends of the lower frame 14, respectively. The ends of the upper frame 13 and the ends of the lower frame 14 are butted against the vertical frames 17, 18 and fixed with fixing devices such as screws.

The shoji screen 21 is housed on the outdoor side of the frame body 11. The shoji screen 22 is housed on the indoor side of the frame body 11. The pair of shoji screens 21, 22 are arranged so as to block the frame body 11 when closed as shown in FIG. 1. Each of the shoji screens 21, 22 includes a frame body 30 and a panel body 40.

The frame body 11 and the frame body 30 are formed of extruded aluminum members, for example. The indoor side of the frame body 30 is covered with resin. The frame body 30 comprises an upper frame 31, a lower frame 32, a door end frame 33, and a joint frame 34. The upper frame 31 and the lower frame 32 extend in the left-right direction. The door end frame 33 and the joint frame 34 extend in the up-down direction, connecting both ends of the upper frame 31 to both ends of the lower frame 14, respectively. The ends of the upper frame 31 and the ends of the lower frame 32 are butted against the door end frame 33 and the joint frame 34 and fixed with fixing devices such as screws.

A crescent lock 49 is provided on the meeting frame 34 of the shoji screen 22. A crescent lock fixing part (not shown) is provided on the meeting frame 34 of the shoji screen 21. The crescent lock 49 is fixed to the crescent lock fixing part when the shoji screens 21 and 22 are closed.

As shown in Figures 2 and 3, a roller device 145 is provided on the bottom frame 32 of each of the shoji screens 21 and 22. The roller device 145 is provided near both ends of the bottom frame 32 in the left-right direction. While Figure 2 shows a partial structure of the shoji screen 22, the shoji screen 21 also has a bottom frame 32 of the shoji screen 22, a roller case 150, and rollers 101 and 102.

The roller device 145 includes two rollers 101, 102 and a roller case 150. The roller case 150 is configured so that it can be installed on the lower frame 32 of the frame body 30 of the shoji screen 22. Each of the two rollers 101, 102 is housed in the roller case 150.

The roller case 150 includes an outer wall 151, an inner wall 152, an upper wall 153, and a lower wall 154. The outer wall 151 is disposed on the outdoor side of the roller case 150. The inner wall 152 is disposed on the outdoor side of the roller case 150. The upper wall 153 connects the upper end of the outer wall 151 to the upper end of the inner wall 152 in the depth direction. The lower wall 154 connects the lower end of the outer wall 151 to the lower end of the inner wall 152 in the depth direction.

Two axles (shaft cores) 105, 106 are provided between the outer wall 151 and the inner wall 152. As shown in FIG. 3, each of the axles 105, 106 extends in the depth direction in a space surrounded by the outer wall 151, the inner wall 152, and the upper wall 153. Each of the axles 105, 106 is formed by a fixing device such as a screw (not shown). For example, the door rollers 101, 102 are inserted into the above-mentioned member when the fixing device such as the screw penetrates from the outside of one of the outer wall 151 and the inner wall 152 to the outside of the other of the outer wall 151 and the inner wall 152 in the depth direction. The axles 105, 106 of the door rollers 101, 102 are supported by the door roller case 150. The left-right distance between the two axles 105, 106 is appropriately set according to the distance between the centers of the two door rollers 101, 102.

Two through holes 115, 116 are formed in the upper wall 153. The upper ends 111, 112 of the rollers 101, 102 protrude upward from the through holes 115, 116 in the upper wall (upper surface) 153. In other words, the upper ends 111, 112 of the rollers 101, 102 protrude from the upper wall 153 of the roller case 150. The maximum height in the vertical direction of the upper ends 111, 112 is, for example, 50% or less of the diameter of the rollers 101, 102, and preferably 40% or less.

Two through holes 117, 118 are formed in the lower wall 154. The left-right centers of the through holes 115, 117 and the axle 105 overlap each other in the up-down direction. The left-right centers of the through holes 116, 118 and the axle 106 overlap each other in the up-down direction. The lower ends of the rollers 101, 102 each protrude from the lower wall 154 in the up-down direction. The maximum vertical height of the lower ends of the rollers 101, 102 is appropriately set to match the maximum vertical height of the upper ends 111, 112.

The left-right size of each of the outer wall 151, inner wall 152, upper wall 153, and lower wall 154 is appropriately set in consideration of the diameter of each of the rollers 101, 102 and the left-right distance between the centers of the rollers 101, 102. The vertical size of each of the outer wall 151 and inner wall 152 is appropriately set in consideration of the diameter of the rollers 101, 102 so that the upper ends 111, 112 and the lower ends 113, 114 of the rollers 101, 102 protrude from the roller case 150. The depth size of each of the upper wall 153 and lower wall 154 is appropriately set to a size that is the depth size of the rollers 101, 102 plus an appropriate amount of extra length. The left-right width of the through holes 115, 116 is appropriately set to a size that is the maximum left-right length of the upper ends 111, 112 of the rollers 101, 102 plus an appropriate amount of extra length.

The peripheral surfaces 121, 122 of the rollers 101, 102 are formed with recesses 125, 126. The recesses 125, 126 are recessed toward the center and are formed over the entire peripheral surface 121, 122 in the circumferential direction.

As shown in Figures 2 and 3, the bottom frame 32 of the shoji screen 22 comprises at least two walls 141, 142 and multiple walls 131 to 136. Wall 141 is located on the outermost side of the bottom frame 32 and has a predetermined size in the vertical direction. Wall 142 is located on the indoor side of wall 141 and is arranged at a predetermined distance from wall 141 in the depth direction. The upper ends of the two walls 141, 142 are located at approximately the same position in the vertical direction. The lower end of wall 141 is located lower than the lower end of wall 142 in the vertical direction. In the depth direction, the two walls 141, 142 are connected by the two walls 131, 136.

As shown in FIG. 3, in the lower frame 32 of the shoji screen 22, the area sandwiched between the two walls 141, 142 is formed with at least a wheel arrangement area 160, a panel body insertion area 210, and a cushioning material arrangement area 230 when viewed from the left and right.

Wall portion 136 extends from a predetermined position in the vertical direction on the outdoor side of wall portion 142 to a position midway along the depth direction toward wall portion 141. Wall portion 132 protrudes downward from the tip of wall portion 136. Wall portion 131 extends from a predetermined position in the vertical direction on the indoor side of wall portion 141 to a position where it intersects with wall portion 132 along the depth direction, and is connected to wall portion 132.

When viewed from the left-right direction, the wall portion 131 has a plurality of through holes 162 and a convex wall portion 220. In the left-right direction, the convex wall portion 220 is provided in the wall portion 131 in a portion where the through holes 162 are not formed. In other words, the convex wall portion 220 is provided in a plurality of regions 222 in the left-right direction. The upper ends 111, 112 of the door rollers 101, 102 protrude upward from the two through holes 162, 162 beyond the wall portion 131. As shown in FIG. 3, the upper ends 111, 112 of the door rollers 101, 102 and the convex wall portion 220 overlap each other in the up-down direction and the depth direction, and are offset from each other in the left-right direction.

When viewed from the left-right direction, a hole 224 is formed in the center of the protruding wall portion 220. The hole 224 extends in the left-right direction and is connected to the wheel arrangement area 160 in the up-down direction. The hole 224 is called a tapping hole, and also functions as a water drainage hole. The tapping hole is a hole formed to insert a fastener such as a screw to connect a part (not shown) of the lower frame 32 that contacts the bottom of the panel body insertion area 210 to the door end frame 33. The protruding wall portion 220 only needs to be provided at least at both ends of the lower frame 32 in the left-right direction, and may be divided by the through hole 162 in the center rather than at both ends in the left-right direction. Even if water enters the panel body insertion area 210 due to rain or condensation, the water passes through the through hole 162 and the hole 224, respectively, reaches the wheel arrangement area 160, and is further discharged to the outside of the fitting 10 through the gap between the lower frame 32 and the lower frame 14.

The panel body insertion recess 211 is formed at the upper end of the lower frame 32, recessed downward, i.e., toward the floor surface G (see FIG. 1), and extending in the left-right direction. The panel body insertion area 210 is provided above the wheel arrangement area 160. The lower end 42 of the panel body 40 is arranged in the panel body insertion area 210.

The panel body 40 is a triple-layer glass and has three glass plates 44, 45, and 46. In the depth direction, a resin spacer 47 is provided between the lower end of the glass plate 44 and the lower end of the glass plate 45. A resin spacer 48 is provided between the lower end of the glass plate 45 and the lower end of the glass plate 46. Each of the glass plates 44, 45, and 46 is, for example, a glass plate called low-e glass. The indoor surface and the outdoor surface of each of the glass plates 44, 45, and 46 are coated with a metal film. By being coated with the metal film, the panel body 40 exhibits higher insulation performance than general double-glazed glass.

The roller arrangement area 160 is provided below the bottom surface of the panel body insertion recess 211 in the lower frame 32. The roller arrangement area 160 and the panel body insertion area 210 are separated in the vertical direction by the walls 131 and 136. A cushioning material 240 is provided on the upper surfaces of the walls 131 and 136. The panel body support member 250 is in contact with the upper surface of the cushioning material 240.

The panel body support member 250 includes an outer wall 251, an inner wall 252, and a bottom wall 253. The outer wall 251 extends upward from the outdoor end of the bottom wall 253. The inner wall 252 extends upward from the indoor end of the bottom wall 253. The upper ends of the walls 141 and 142 are provided with claws that protrude slightly toward the walls 142 and 141 in the depth direction. The upper ends of the outer wall 251 and the inner wall 252 are in contact with the claws of the walls 141 and 142, and are supported by the claws of the walls 141 and 142 in the depth direction. The bottom wall 253 is supported by the cushioning material 240 while resting on the cushioning material 240. When viewed from the left and right direction, the portion surrounded by the outer wall 251, the inner wall 252, and the bottom wall 253 is the panel body insertion recess 211. The panel body support member 250 is made of, for example, resin.

The lower end 42 of the panel body 40 is inserted into the panel body insertion recess 211. When viewed from the left-right direction, the upper end surfaces of the walls 141 and 142 and the upper surfaces of the claws of the walls 141 and 142 are provided with pressing portions 243 and 244. Each of the pressing portions 243 and 244 extends upward and is inclined in the vertical direction toward each of the walls 142 and 141 in the depth direction. Each of the outer wall 251 and the inner wall 252 is provided with protrusions 245 and 246. The protrusion 245 protrudes slightly from a position approximately at the center in the vertical direction of the indoor side surface of the outer wall 251 toward the center of the panel body insertion recess 211 in the depth direction. The protrusion 246 protrudes slightly from a position approximately at the center in the vertical direction of the inner wall 252 toward the center of the panel body insertion recess 211 in the depth direction. The tips of the retaining portion 243 and the protrusion 245 are in contact with the outdoor surface of the panel body 40. The tips of the retaining portion 244 and the protrusion 246 are in contact with the indoor surface of the panel body 40. In other words, in the depth direction, the panel body 40 is sandwiched between the retaining portion 243 and the protrusion 245, and the retaining portion 244 and the protrusion 246.

The left-right size of each of the outer wall 251, inner wall 252, and bottom wall 253 corresponds to the left-right size of the panel body 40. The depth size of the bottom wall 253 is approximately the same as the depth size of the panel body 40. The up-down size of the outer wall 251 and inner wall 252 is appropriately set to a size capable of supporting the lower end portion 42 of the panel body 40 inserted into the panel body insertion recess 211.

In the bottom frame 32 of the shoji screen 22, the area above the wall sections (panel body mounting walls) 131, 136 in the vertical direction is divided into a panel body insertion area 210 and a cushioning material arrangement area 230. The panel body insertion area 210 is an area above the bottom wall 253 of the panel body support member 250 among the areas above the walls 131, 136 in the vertical direction. The cushioning material arrangement area 230 is an area between the bottom wall 253 of the panel body support member 250 and the walls 131, 136 in the vertical direction. The wall section 131 is provided at a lower position than the wall section 136, and is the upper wall section that surrounds the roller arrangement area 160. In the cushioning material arrangement area 230 , a first area 231 between the wall portion 131 and the bottom wall 253 of the panel body support member 250 in the vertical direction is larger than a second area 232 between the wall portion 136 and the bottom wall 253 of the panel body support member 250 .

When viewed from the left-right direction, in the first region 231 of the cushioning material arrangement region 230, the upper ends 111, 112 of the rollers 101, 102 protrude from the roller arrangement region 160 through the through holes 162. The upper ends of the rollers 101, 102 are arranged at approximately the same height as the wall portion 136 in the vertical direction. In the first region 231, the cushioning material 240 fills the gap between the bottom wall 253 of the panel body support member 250 and the wall portion 131 in the vertical direction. In the second region 232, the cushioning material 240 is arranged so as to fill the gap between the bottom wall 253 of the panel body support member 250 and the wall portion 131 in the vertical direction.

The cushioning material 240 is formed, for example, from resin. As shown in FIG. 3, the cushioning material 240 is molded in a shape that fills the cushioning material arrangement area 230 except for the area closed by the upper end 112 of the door roller 102 as described above. The cushioning material 240 is arranged in the same position as the convex wall portion 220 in the left-right direction, and is divided by a through hole 162. The upper ends 111, 112 of the door rollers 101, 102 and the cushioning material 240 overlap each other in the up-down direction and the depth direction, and are offset from each other in the left-right direction.

The minimum thickness of the cushioning material 240 in the vertical direction is approximately equal to the thickness of the cushioning material 240 between the bottom wall 253 of the panel body support member 250 and the wall portion 135, and the thickness of the cushioning material 240 between the bottom wall 253 and the upper end of the door roller 102 in the vertical direction. The minimum thickness of the cushioning material 240 in the vertical direction means a thickness equivalent to the minimum thickness required to support the weight of the panel body 40.

The roller arrangement area 160 is an area partially surrounded by multiple walls 131 to 135. The wall 133 extends in the depth direction from a predetermined position below the intersection with the wall 131 in the vertical direction of the indoor side surface of the wall 141. The wall 134 extends in the depth direction from a predetermined position below the intersection with the wall 133 in the vertical direction of the indoor side surface of the wall 141 to near the outdoor surface of the roller 102. The wall 134 at a position where it overlaps with the outer wall 151 of the roller case 150 in the depth direction is formed with a fine hole 138 penetrating in the vertical direction. The wall 135 extends in the depth direction from the lower end of the indoor side surface of the wall 142 to near the indoor surface of the roller 102. Wall portion 135 has a vertically penetrating fine hole 139 formed at a position where it overlaps with the inner wall 152 of roller case 150 in the depth direction. Wall portion 135 overlaps with wall portion 134 in the vertical direction. The vertical distance between the bottom surface of wall portion 131 and the top surfaces of walls 134 and 135 is approximately equal to the vertical size of roller case 150.

A fastener 157 is provided at the lower end of the outer wall 151 of the roller case 150. The fastener 157 extends downward and protrudes to the outside. A fastener 158 is provided at the lower end of the inner wall 152 of the roller case 150. The fastener 158 extends downward and protrudes to the inside. Each of the fasteners 157, 158 extends in the left-right direction and is provided on the entire left-right direction of the lower end of each of the outer wall 151 and the inner wall 152.

The roller case 150 is arranged in the roller arrangement area 160. The roller case 150 is positioned by a plurality of walls 131 to 135. The outer wall 151 of the roller case 150 contacts the tips of the walls 133 and 134 from the indoor side. The inner wall 152 of the roller case 150 contacts the outdoor side of the part of the wall 132 below the position where it intersects with the wall 131 and the tip of the wall 135 from the outdoor side. The upper wall 153 of the roller case 150 contacts the wall 131 from below. The lower wall 154 of the roller case 150 contacts the indoor part of the wall 134 in the depth direction and the outdoor part of the wall 135 in the depth direction from above. Each of the fasteners 157 and 158 penetrates the fine hole 138 of the wall 134 and the fine hole 139 of the wall 135. The upper surface of each of the fasteners 157 and 158 contacts the bottom surface of each of the walls 134 and 135 from below.

The rollers 102 of the roller case 150 arranged in the roller arrangement area 160 are supported in the vertical direction by protrusions (rail portions) 16 provided on the lower frame 14 of the frame body 11.

As shown in FIG. 3, the lower frame 14 of the frame body 11 has a lower frame arrangement area 159. The lower frame arrangement area 159 contains the lower frame 32 that houses the lower end portion 42 of the panel body 40, and the wheel case 150 that includes the wheel rollers 101 and 102. The lower frame arrangement area 159 is an area that is partially surrounded by multiple wall portions 311-316 and is open to the outdoors.

The wall portion 313 is disposed on the outermost side of the lower frame 14 and extends in the vertical direction. The wall portion 311 extends in the depth direction from a predetermined position lower than the vertical center on the indoor surface of the wall portion 313 toward approximately directly below the door rollers 101 and 102. The wall portion 317 extends upward from the indoor end of the wall portion 311. The wall portion 312 rises in stages as it progresses from the upper end of the wall portion 317 toward the indoor side. The upper end of the wall portion 317 is provided with a protrusion 16 that protrudes further upward. The tip of the protrusion 16 in the protruding direction is more bulging than the base end. The shape of the tip of the protrusion 16 is semicircular and concave toward the center of the door rollers 101 and 102 when viewed from the left and right direction, in accordance with the shape of each of the recesses 125 and 126 of the door rollers 101 and 102.

The wall portion 314 extends upward from the indoor end of the wall portion 312. The wall portion 315 extends in the depth direction from the upper end of the wall portion 314 toward the outdoors. A lower frame support member holding portion 330 that hangs down is provided at the tip of the wall portion 315. The lower frame support member holding portion 330 holds the indoor portion of the lower frame support member 332. The outdoor portion of the lower frame support member 332 protrudes in the depth direction from the lower frame support member holding portion 330 toward the outdoors and contacts two protrusions 147, 148 of the wall portion 142 of the lower frame 32 from the indoor side. Each of the two protrusions 147, 148 protrudes toward the indoors from a predetermined position on the indoor side of the wall portion 142. The two protrusions 147, 148 are arranged at a distance from each other in the vertical direction. Wall portion 316 extends upward from the outdoor end of wall portion 315. Wall portion 318 is provided from the upper end of wall portion 316 and extends in the depth direction toward the interior.

Each of the recesses 125, 126 of the rollers 101, 102 fits into the protrusion 16 of the lower frame 14, and the two protrusions 147, 148 of the lower frame 32 are supported by the lower frame support member 332. Furthermore, the upper frame 31 is supported in the up-down and depth directions by the upper frame 13. Each of the rollers 101, 102 rotates in the circumferential direction and runs left-right using the protrusion 16 as a rail, causing the shoji 22 to slide left-right. The shoji 21 has the same configuration as the shoji 22. The left-right direction is the same as the traveling direction of the rollers 101, 102.

The above-described door roller device 145 includes at least a door roller case 150 provided on the lower frame 32 of each of the shoji screens 21 and 22, and door rollers 101 and 102 that are housed in the door roller case 150 and supported by the axles 105 and 106 of the door roller case 150. The upper ends 111 and 112 of the door rollers 101 and 102 protrude upward from the upper wall 153 of the door roller case 150. Each of the door rollers 101 and 102 can rotate in the circumferential direction while fitting into the protrusion 16 provided on the lower frame 14 of the frame body 11, and run in the left-right direction. The upper end of the conventional door roller was located in the storage space below the upper wall of the door roller case. However, since the upper ends 111 and 112 of the door rollers 101 and 102 protrude upward from the upper wall 153 of the door roller case 150, the vertical size of the door roller case 150 can be reduced. When the rollers 101, 102 and the roller case 150 are provided on the lower frame 32 of the shoji screens 21, 22, the space inside the lower frame 32 can be effectively utilized to bring the upper ends 111, 112 of the rollers 101, 102 closer to the panel body 40 in the vertical direction. By bringing the upper ends 111, 112 of the rollers 101, 102 closer to the panel body 40, the size of the panel body 40 can be secured without reducing the diameter of the rollers 101, 102, if the size of the frame body 11 is constant. By being able to maintain the diameter of the rollers 101, 102 without reducing it, it is possible to suppress an increase in the opening and closing force of the shoji screens 21, 22 and a decrease in the durability of the rollers 101, 102. By being able to secure the size of the panel body 40, such as a glass plate, the visibility and heat insulation of the shoji screens 21, 22 can be maintained.

The shoji screens 21, 22 described above comprise the above-mentioned rollers 101, 102, a roller case 150 in which the rollers 101, 102 are housed, a frame body 30 having a lower frame 32 to which the roller case 150 is attached, and a panel body 40 housed in the frame body 30. If the size of the shoji screens 21, 22 is constant, the size of the panel body 40 can be ensured without reducing the diameter of the rollers 101, 102.

The lower frame 32 of the shoji screens 21 and 22 described above is formed with a wheel arrangement area 160 in which the wheel case 150 is arranged, a panel body insertion recess 211 into which the lower end 42 of the panel body 40 is inserted, and a cushioning material arrangement area 230 for inserting a cushioning material 240 between the wheel arrangement area 160 and the panel body insertion recess 211 in the vertical direction. As shown in FIG. 3, the upper ends 111 and 112 of the wheel rollers 101 and 102 and the cushioning material arrangement area 230 overlap each other in the vertical direction and the depth direction. The upper ends 111 and 112 of the wheel rollers 101 and 102 are arranged in the through holes 162 between the cushioning materials 240 provided in the areas 222 and 222 adjacent to each other in the horizontal direction. For example, in a conventional shoji screen, the wheel roller and the wheel case were only contained in the area corresponding to the wheel arrangement area 160. However, in the above-mentioned shoji screens 21 and 22, the upper ends 111 and 112 of the rollers 101 and 102 are positioned in the cushioning material placement area 230 in the vertical direction. With the shoji screens 21 and 22 and the fitting 10, the same functions as conventional shoji screens can be realized, while the cushioning material placement area 230, which was previously used only to place the cushioning material 240, can also be used as an area to place the upper ends 111 and 112 of the rollers 101 and 102. Therefore, the size of the panel body 40 can be secured without reducing the diameter of the rollers 101 and 102, and good visibility and insulation can be obtained.

The above-described convex wall portion 220 is provided on the lower frame 32 of the shoji screens 21 and 22. A hole 224 is formed in the center of the convex wall portion 220. The upper ends 111 and 112 of the rollers 101 and 102 and the convex wall portion 220 overlap each other in the vertical and depth directions. The upper ends 111 and 112 of the rollers 101 and 102 are arranged in the through holes 162 between the convex wall portions 220 provided in the regions 222 and 222 adjacent to each other in the left-right direction. Even if the holes 224 used for tapping holes, drainage holes, etc. are divided into multiple regions in the left-right direction, the conventional functions of the convex wall portion 220 can be maintained. The conventional functions of the convex wall portion 220 include, for example, the function of inserting a fixing tool such as a screw for connecting the lower frame 32 and the door end frame 33, the function of draining water, etc. By dividing the convex wall portion 220 into multiple regions in the left-right direction, the regions between adjacent convex wall portions 220 can be used as regions for arranging the upper ends 111, 112 of the door rollers 101, 102. Therefore, the size of the panel body 40 can be secured without reducing the diameter of the door rollers 101, 102, and good visibility and insulation can be obtained.

The fitting 10 described above comprises the above-mentioned shoji screens 21, 22 and frame body 11. With the fitting 10, if the size of the shoji screens 21, 22 is constant, the size of the panel body 40 can be secured without reducing the diameter of the door rollers 101, 102. By being able to secure the size of the panel body 40, such as a glass plate, the view and thermal insulation of the fitting 10 can be maintained.

Although the preferred embodiments of the present disclosure have been described above in detail, the present disclosure is not limited to the above-described embodiments. The present disclosure can be modified within the scope of the gist of the present disclosure as described in the claims.

The roller device 181 in each of the above-described embodiments includes two rollers 401, 402, but the roller device 181 may include only one roller 401, or may include three or more rollers, each formed in the same manner as the roller 401 and spaced apart in the left-right direction.

For example, the fittings according to the present disclosure are not limited to the fitting 10 described above, but include all fittings that have a movable part and a frame, such as windows, doors, and doors with rollers. Also, while the rail portion is a protrusion in the above embodiment, the rail portion of the fittings according to the present disclosure may be a recess.

The cross-sectional shape of the bottom frame 32 and bottom frame 14 of the above-mentioned fitting 10 when viewed from the left-right direction is not limited to the cross-sectional shape shown in Figure 3. The bottom frame 32 is provided with at least a panel body insertion recess and a door roller arrangement area, and an area in which the upper end of the door roller can be arranged is provided between the panel body insertion recess and the door roller arrangement area in the vertical direction.

10...sliding window (fitting), 11...frame, 16...projection (rail), 21, 22...paper screen, 30...frame, 32...bottom frame, 40...triple glass (panel), 101, 102...wheel, 111, 112...upper end, 105, 106...axle (axis), 131, 136...wall, 145...wheel device, 150...wheel case, 153...upper wall (upper surface), 160...wheel placement area, 211...panel insertion recess, 220...projecting wall, 222...area, 224...hole, 230...cushion placement area, 240...cushion

Claims (4)

A roller device including a roller case that can be installed on the lower frame of a frame body of a shoji screen, and a roller that is housed and supported by the roller case, is rotatably provided on a rail portion of a lower frame of a frame body in which the shoji screen is housed, and has an upper end that protrudes from an upper surface of the roller case;
A frame having a lower frame to which the door roller device is attached;
A panel body housed in the frame;
Equipped with
The lower frame has:
a roller arrangement area in which the roller device is arranged;
a panel body mounting wall portion provided above the door roller arrangement area and on which a lower end portion of the panel body is placed;
is formed,
The upper end of the door roller protrudes upward beyond a portion of the panel body mounting wall portion.
Shoji screen . The lower frame has :
a panel body insertion recess provided above the wheel arrangement area and into which a lower end of the panel body is inserted;
A cushioning material disposing area in which a cushioning material is disposed is formed between the panel body mounting wall portion and the panel body insertion recess in the vertical direction,
The upper end of the door roller is located within the cushioning material arrangement area,
When viewed from the traveling direction of the door roller, the upper end of the door roller and the cushioning material arrangement area overlap each other.
The shoji screen according to claim 1 . a protruding wall portion protruding into the cushioning material arrangement area in the up-down direction is provided on the panel body mounting wall portion,
A hole is formed in the center of the protruding wall portion when viewed from the traveling direction of the door roller, the hole being connected to the door roller arrangement area in the vertical direction,
The protruding wall portion is provided in a plurality of predetermined regions in the traveling direction of the door roller,
When viewed from the traveling direction of the door roller, the upper end portion of the door roller and the protruding wall portion overlap each other.
The shoji screen according to claim 2 . The shoji screen according to any one of claims 1 to 3 ,
A frame body in which the shoji screen fits;
Equipped with
Building materials.

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