Remodeling sash

Abstract

To provide an easy-to-use remodeling sash.SOLUTION: A remodeling sash includes a new sash 1 that covers an existing sash 8 from the inner periphery. The new sash 1 has a main body 2 and covers 6a, 6b, and 6c attached to the top surface of the main body 2. The main body 2 has an outer rail 3, an inner rail 4, and an extension portion 5 that extends from a rear wall 22 of the existing sash 8 to the indoor side. The covers 6a, 6b, and 6c include an inter-rail cover 6a attached between the outer rail 3 and the inner rail 4, an interior cover 6b attached to the indoor side of the inner rail 4, and an extension portion cover 6c that covers the extension portion 5. The inter-rail cover 6a, the interior cover 6b, and the extension portion cover 6c form a substantially flat upper surface 7 of the sash.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a retrofit sash for retrofitting an existing window or the like. [Background technology]

[0002] 2. Description of the Related Art Renovation sashes are known in the art, and are used to renovate windows and the like by installing a new frame to cover an existing frame installed in an opening in a building. There is a demand for such renovation sashes to be easy to use. Summary of the Invention [Problem to be solved by the invention]

[0003] In view of the above-mentioned circumstances, the present invention has an object to provide a remodeled sash that is easy to use. [Means for solving the problem]

[0004] In order to achieve the above-mentioned object, the renovated sash according to the invention described in claim 1 comprises a new sash that covers the existing sash from the inner side, the new sash having a main body and a cover attached to the upper surface of the main body, the main body having an outer rail, an inner rail, and an extension extending toward the interior side from the rear wall of the existing sash, the cover having an inter-rail cover attached between the outer rail and the inner rail, an interior cover attached to the interior side of the inner rail, and an extension cover that covers the extension, and the inter-rail cover, the interior cover and the extension cover form an approximately flat upper surface of the sash. Effect of the Invention

[0005] The renovated sash according to the invention described in claim 1 comprises a new sash that covers the existing sash from the inner side, the new sash having a main body and a cover attached to the upper surface of the main body, the main body having an outer rail, an inner rail, and an extension extending toward the inside of the room from the rear wall of the existing sash, and the cover having a rail-to-rail cover attached between the outer rail and the inner rail, an interior cover attached to the interior side of the inner rail, and an extension cover that covers the extension, and the rail-to-rail cover, interior cover, and extension cover form a substantially flat upper surface of the sash, making it easy to clean and easy to use as the outer rail and inner rail do not get in the way of passage. Furthermore, by providing an extension portion on the main body of the newly installed lower frame, the newly installed frame can be positioned on the inner periphery of the existing frame without protruding farther outside the room than the existing frame. Furthermore, when the indoor end of the extension cover is positioned closer to the interior than the extension, the flat surface can be made larger, thereby making it easier to use. If the extension cover, along with the rail-to-rail cover and interior cover, are made of resin, insulation can be improved even more than before. [Brief description of the drawings]

[0006] [Figure 1] 3 is an enlarged longitudinal sectional view showing the lower frame side of FIG. 2. [Diagram 2] 1 is a vertical cross-sectional view showing one embodiment of a remodeled sash of the present invention. [Diagram 3] This is a cross-sectional view of the renovated sash. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0007] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Figures 1 to 3 show one embodiment of the remodeled sash of the present invention. As shown in Figures 2 and 3, this remodeled sash is designed to remodel a window by leaving the window frame (existing frame 10) already installed in the building frame opening 9 as it is, installing a new window frame (new frame 11) on the inner periphery of the existing frame 10, and attaching new shoji screens 12a, 12b to the new frame 11. The existing frame 10 is composed of an existing lower frame 8, an existing upper frame 13, and existing vertical frames 14, 14 on the left and right sides, forming a framework on all four sides, and each frame material 8, 13, 14 is fixed to the main body 15 with anchors 16. The new frame 11 is composed of a new lower frame 1, a new upper frame 17, and new vertical frames 18, 18 on the left and right sides. Both the existing frame 10 and the new frame 11 are window frames for sliding windows. The existing frame 10 has a projected dimension D of 70 mm, while the new frame has a projected dimension A of 90 to 130 mm, which is larger than the existing frame 10. As a result, the renovated sash has improved insulation performance.

[0008] As shown in Figure 1, the existing lower frame 8 has an upper surface 19 formed in a stepped shape that gradually becomes lower as it approaches the outside of the room, and an outer rail 20 and an inner rail 21 are formed to protrude upward from the upper surface 19, with the outer rail 20 being cut away near its base. A support bracket 23 that receives the new sill 1 is attached to the rear wall 22 of the existing sill 8 by fixing it with a screw 24 from the outside of the room. A receiving bracket 25 is attached to the inner rail 21 by fixing it with a screw 26 from the outside of the room, and a spacer 27 is appropriately placed between the bottom surface of the support bracket 23 and the top surface of the receiving bracket 25, and the support bracket 23 is supported from below by the receiving bracket 25 to prevent it from dropping. In addition, a support bracket 28 is also provided at the outside end of the existing sill 8, and this support bracket 28 supports the outside part of the new sill 1 to prevent it from dropping.

[0009] As shown in FIG. 1, the new lower frame 1 has a main body 2 made of an extruded aluminum alloy material, and covers 6a, 6b, and 6c made of resin materials placed on the main body 2. The upper surface 29 of the main body 2 is inclined so that it becomes lower as it approaches the outside of the room, and the outer rail 3 and inner rail 4 are provided at a distance in the indoor / outdoor direction, protruding upward from the inclined upper surface 29. The outer rail 3 and inner rail 4 are formed at the same height, and an engagement part 31 for a door roller 30 is formed at the upper end, and a weatherstripping material 32 is attached below the engagement part 31 facing the outside of the room. The main body 2 has an extension 5 on the indoor side that extends further inside the room than the rear wall 22 of the existing lower frame 8. A space 33 is formed on the outer periphery of the extension 5, and an angle 34 and the upper end of the rear wall 22 of the existing lower frame 8 are inserted into this space 33. A cover mounting piece 35 protrudes from the inner periphery of the extension 5. A resin frame 37 is provided on the upper surface of an existing frame 36 on the indoor side of the extension 5, abutting against the extension 5. The main body 2 is placed on support brackets 23, 28 provided on the existing lower frame 8, and fixed with screws 38 from the inner periphery.

[0010] The covers 6a, 6b, 6c include an inter-rail cover 6a attached between the outer rail 3 and the inner rail 4, an indoor side cover 6b attached to the indoor side of the inner rail 4, and an extension portion cover 6c covering the extension portion 5, and the inter-rail cover 6a, the indoor side cover 6b, and the extension portion cover 6c form a substantially flat lower frame upper surface 7. The rail-to-rail cover 6a has its outside end engaged with a protrusion 39 protruding from the outer rail 3 toward the inside of the room, and its inside end abutting against the base of the inner rail 4, sealing the space between the outer rail 3 and the inner rail 4. The top surface of the rail-to-rail cover 6a is at approximately the same height as the top ends of the outer rail 3 and the inner rail 4. A groove 41 is formed on the indoor side of the rail-to-rail cover 6a, into which a hanging piece 40 of the inner screen 12b is inserted. A reinforcing material 42 made of an aluminum profile is provided on the back side of the rail-to-rail cover 6a. The indoor cover 6b is formed with a generally U-shaped cross section that is open on the outer periphery side, and is attached by engaging its outdoor end with a protrusion 43 that protrudes from the inner rail 4 toward the indoor side and its indoor end with a cover attachment piece 35 that protrudes from the extension part 5, covering the upper surface of the main body 2 between the inner rail 4 and the cover attachment piece 35. The upper surface of the indoor cover 6b is at approximately the same height as the upper end of the inner rail 4. The extension cover 6c has its exterior end engaged with a locking portion 44 formed on the cover mounting piece 35, and is placed on the resin frame 37, covering the main body 2 in a continuous manner with the interior cover 6b.

[0011] In this way, this remodeled sash is composed of a newly installed sash frame 1, a main body 2, and resin covers 6a, 6b, 6c attached to the main body 2, and the covers 6a, 6b, 6c are the inter-rail cover 6a, the interior cover 6b, and the extension cover 6c, respectively, and these covers 6a, 6b, 6c form a substantially flat sash frame upper surface 7, which makes it easy to clean the sash frame 1 and also makes it easy to use, as the outer rail 3 and inner rail 4 do not get in the way of passage. Also, by covering the main body 2 with the covers 6a, 6b, 6c, the insulation performance can be improved and the design is also improved. In this remodeled sash, the main body 2 is provided with an extension 5 that extends from the rear wall 22 of the existing sill 8 toward the interior of the room, and the new sill 1 is positioned as close to the interior of the room as possible, so that the expected dimension A of the new frame 11 (the expected dimension of the part excluding the extension 5 and extension cover 6c of the new sill 1) is as large as 90 to 130 mm, but the protruding dimension B of the new sill 1 toward the exterior of the room from the existing sill 8 can be made small to 0 to 30 mm (see Figure 1). As a result, this remodeled sash improves the insulation performance while the new sill 1 does not get in the way when passing outside, improving usability. Furthermore, when installing the new frame 11, the new frame 11 can be easily installed even if there is an obstacle on the exterior side. Furthermore, by providing the extension portion 5 on the main body 2 in this manner, the height C of the approximately flat lower frame upper surface 7 from the frame (existing frame) 36 can be reduced to 15 mm or less, thereby increasing the effective opening area.

[0012] As shown in Figure 2, an upper frame auxiliary member 45 is attached to the inner circumference of the existing upper frame 13. The new upper frame 17 is attached to the upper frame auxiliary member 45 with screws 47 from the inner circumference after spacers 46 are appropriately inserted into the gap between the new upper frame 17 and the upper frame auxiliary member 45. The newly installed upper frame 17 has an outer screen guide groove 48a and an inner screen guide groove 48b that open toward the inner circumference, and the upper part of the outer screen 12a is guided into the outer screen guide groove 48a, and the upper part of the inner screen 12b is guided into the inner screen guide groove 48b. The inner screen guide groove 48b is covered with a resin cover 49. A resin frame 50 is provided between the new upper frame 17 and the existing frame 36, and covers the existing upper frame 13 and the new upper frame 17 from the inside of the room. The resin frame 50 has a protrusion 51 that protrudes toward the outer periphery at the outside end of the room, and by inserting the protrusion 51 into a groove 52 formed in the cover 49 of the new upper frame 17, it is possible to absorb any vertical error in the mounting position of the new upper frame 17.

[0013] As shown in Figure 3, a vertical frame reinforcement material 53 is attached to the inner circumference of the existing vertical frame 14. The new vertical frame 18 is attached to the vertical frame reinforcement material 53 with screws 55 from the inner circumference after spacers 54 are appropriately inserted into the gap between the new vertical frame 18 and the vertical frame reinforcement material 53. The new vertical frame 18 has a resin cover 56 attached to the indoor side to cover the inner periphery. The cover 56 has an integral face wall 57 that protrudes toward the inner periphery, and the face wall 57 is hollow. Furthermore, a cover material 58 is attached to the outdoor side of the cover 56 on the new vertical frame 18 on the door end side of the outer door screen 12a, and the cover material 58 fills the space between the cover 56 and the door end frame 60 of the outer door screen 12a. A resin frame 61 is provided between the new vertical frame 18 and the existing frame 36, and covers the existing vertical frame 14 and the new vertical frame 18 from the inside of the room. The resin frame 61 has a protrusion 51 that protrudes toward the outer periphery at the outside end of the room, and by inserting the protrusion 51 into a groove 52 formed in the cover 56 of the new vertical frame 18, it is possible to absorb any left-right error in the mounting position of the new vertical frame 18.

[0014] As shown in Figures 2 and 3, the outer screen 12a and the inner screen 12b are formed by forming an upper frame 62, a lower frame 63, a door end frame 60, and a joint frame 64 into a frame, and fitting double-glazed glass 65 inside the frame. The outside part of each frame 62, 63, 60, 64 is made of aluminum material, and the inside part is made of plastic material. Combined with the use of double-glazed glass 65, the screens 12a, 12b have high thermal insulation performance. As shown in FIG. 1, the lower frame 63 has a hanging piece 40 on the outside of the room, and the weatherstripping material 32 attached to the outer rail 3 and inner rail 4 of the main body 2 abuts on the indoor side of the hanging piece 40.

[0015] Next, an example of the construction procedure for this remodeled sash will be described. First, in preparation for installing the new frame 11, the outer rail 20 of the existing sill 8 is cut away, and then the receiving bracket 25 and the support brackets 23, 28 are attached to the existing sill 8. In addition, the upper frame auxiliary material 45 is attached to the existing upper frame 13, and the vertical frame auxiliary material 53 is attached to the existing vertical frame 14. Next, the new frame 11 is placed on the inner periphery of the existing frame 10 from the outside of the room, and the main body 2 of the new lower frame 1 is placed on the support brackets 23, 28. At this time, the outside ends of the support brackets 23, 28 are abutted against the step portion 66 of the main body 2 (see FIG. 1), so that the new lower frame 1 can be positioned in the indoor / outdoor direction. Next, the main body 2 of the newly installed lower frame 1 is fixed to the support bracket 23 with screws 38 from the inner side. Next, a spacer 46 is inserted into the gap between the upper frame reinforcement material 45 and the newly installed upper frame 17, and the newly installed upper frame 17 is fixed to the upper frame reinforcement material 45 from the inner side with screws 47. A spacer 54 is inserted into the gap between the vertical frame reinforcement material 53 and the newly installed vertical frame 18, and the newly installed vertical frame 18 is fixed to the vertical frame reinforcement material 53 from the inner side with screws 55. Next, the resin frames 37, 50, and 61 are attached to the indoor side of the new frame 11. Next, the rail-to-rail cover 6a, the interior cover 6b, and the extension cover 6c are attached onto the main body 2 of the newly installed lower frame 1. Finally, the outer screen 12a and the inner screen 12b are fitted into the newly installed frame 11 by pushing them together from above and below.

[0016] As described above, this renovated sash comprises a new sash 1 which covers the existing sash 8 from the inner side, and the new sash 1 has a main body 2 and covers 6a, 6b, 6c attached to the upper surface of the main body 2, and the main body 2 has an outer rail 3, an inner rail 4, and an extension portion 5 which extends into the room from the rear wall 22 of the existing sash 8, and the covers 6a, 6b, 6c have an inter-rail cover 6a attached between the outer rail 3 and the inner rail 4, an interior side cover 6b attached to the interior side of the inner rail 4, and an extension portion cover 6c which covers the extension portion 5, and the inter-rail cover 6a, the interior side cover 6b and the extension portion cover 6c form a substantially flat sash upper surface 7 (see Figure 1), making it easy to clean the sash 1 and easy to use as the outer rail 3 and inner rail 4 do not get in the way of passage. Furthermore, in this remodeled sash, the main body 2 is covered with the covers 6a, 6b, and 6c, thereby improving the heat insulating performance and the design. In this remodeled sash, the indoor side cover 6b and the extension cover 6c are continuous and cover the main body 2 (see FIG. 1), which further improves the heat insulating performance and design. This renovated sash has a projected dimension A of 90 to 130 mm excluding the extension portion 5 and extension portion cover 6c of the newly installed sash 1, and a protrusion dimension B of the newly installed sash 1 to the outside from the existing sash 8 is 0 to 30 mm (see Figure 1).This improves the insulation performance while preventing the new sash from getting in the way when passing outside, improving usability. In this remodeled sash, the height C of the substantially flat sill upper surface 7 from the frame (existing frame) 36 is 15 mm or less (see FIG. 1), so that the effective opening area can be increased.

[0017] The present invention is not limited to the above-described embodiment. The cross-sectional shapes of the main body, rail cover, interior cover, and extension cover that constitute the new lower frame can be changed as appropriate. The material of each cover may be an aluminum alloy and is not limited to resin. The structure of the outer and inner screens is not important. In addition to sliding sashes, the present invention can also be applied to single-sliding sashes in which the outer or inner screen is fixed so as not to move within the frame. [Explanation of symbols]

[0018] 1 New lower frame 2 Main unit 3 Outer rail 4 Inner rail 5 Extension 6a Rail cover (cover) 6b Indoor cover (cover) 6c Extension cover (cover) 7 Top of bottom frame 8 Existing lower frame

Claims

[Claim 1] A renovated sash comprising a new sash covering the existing sash from the inner side, the new sash having a main body and a cover attached to the upper surface of the main body, the main body having an outer rail, an inner rail, and an extension extending into the interior of the room from the rear wall of the existing sash, the cover having an inter-rail cover attached between the outer rail and the inner rail, an interior cover attached to the interior side of the inner rail, and an extension cover covering the extension, the inter-rail cover, the interior cover and the extension cover forming a substantially flat upper surface of the sash.

Images