Refurbished sashes and windows

Abstract

To provide a refurbishing sash capable of improving mountability.SOLUTION: A refurbishing sash 100 to be provided to an opening of a building includes: a cover body 116 that is attached to an inner circumferential side of an existing frame 12 provided at the opening and covers the inner circumferential side of the existing frame 12; a new frame 10 placed on an inner circumference side of the cover body 116; and a height adjustment mechanism 180 to be provided on a lower frame of the cover body 116 and is capable of being displaced in a vertical direction. The height adjustment mechanism 180 is capable of contacting a lower frame of the existing frame by displacing the same vertical.SELECTED DRAWING: Figure 10

Description

[Technical Field]

[0001] The present disclosure relates to retrofit sashes. [Background technology]

[0002] Patent Document 1 discloses a remodeled window structure in which a new frame is installed within an opening formed by an existing frame. This remodeled window structure includes a new frame attached to the inner periphery of the existing frame, a shoji screen installed in the new frame, and upper, lower, and vertical cover materials that cover the space between the existing and new frames. The new frame is fixed to the frame frame with screws. The upper cover material is screwed to an attachment fixed to the new upper frame, the lower cover material is screwed to the new lower frame, and the vertical cover material is screwed to a connecting member fixed to the new vertical frame, and these cover materials are supported by the new frame. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2017-101472 Summary of the Invention [Problem to be solved by the invention]

[0004] In the technology described in Patent Document 1, the existing sill does not receive the load from the new sill at a position on the outside of the room, so there is a risk that the outside part of the new sill may be deformed. Therefore, a mechanism may be provided to connect the new sill and the existing sill, and it is desirable that this mechanism be easy to install.

[0005] An object of the present disclosure is to provide a technology that can improve the ease of installation of retrofit sashes. [Means for solving the problem]

[0006] In order to solve the above problems, one aspect of the present disclosure is a remodeled sash to be installed in an opening of a building, the remodeled sash comprising: a cover body attached to the inner periphery of an existing frame installed in the opening and covering the inner periphery of the existing frame; a new frame arranged on the inner periphery of the cover body; and a height adjustment mechanism provided on the lower frame of the cover body and displaceable in the vertical direction. The height adjustment mechanism can abut against the lower frame of the existing frame by being displaced in the vertical direction. [Brief explanation of the drawings]

[0007] [Figure 1] FIG. 2 is a longitudinal cross-sectional view of the remodeled sash of the first embodiment. [Figure 2] An enlarged cross-sectional view of the upper side of the renovated sash. [Figure 3] FIG. [Figure 4] An enlarged cross-sectional view of the underside of the renovated sash. [Figure 5] FIG. 4 is a perspective cross-sectional view of a lower cover frame and a spacer. [Figure 6] 10A and 10B are diagrams for explaining a method of attaching a spacer. [Figure 7] FIG. 2 is a horizontal cross-sectional view of the remodeled sash of the first embodiment. [Figure 8] FIG. 10 is a partial perspective view of the cover body, illustrating the connection of the cover body. [Figure 9] This is a schematic diagram to explain how to install a new shoji screen. [Figure 10] FIG. 10 is a longitudinal cross-sectional view of a remodeled sash according to a second embodiment, showing an enlarged portion of the lower frame side. [Figure 11] FIG. 10 is a perspective cross-sectional view of a lower cover frame and a height adjustment mechanism according to a second embodiment. [Figure 12] 10A and 10B are diagrams for explaining a method of adjusting the height adjustment mechanism. [Figure 13] FIG. 10 is a horizontal cross-sectional view of a remodeled sash according to a second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0008] FIG. 1 is a longitudinal cross-sectional view of a remodeled sash 1 of the first embodiment. The remodeled sash 1 is used as part of a fixture in combination with a new shoji screen 14. A framework 28 is provided in a wall 2 that separates an indoor space from an outdoor space, forming an opening 4, and the fixture, including the remodeled sash 1, is installed on this framework 28. The framework 28 is a framework structure made up of multiple framework members, and is made of materials such as wood or resin that can be threaded with screws, and supports frame members 24 and the like. The indoor space and the outdoor space are located on both sides of the new shoji screen 14 that is fitted into the remodeled sash 1, in the forward direction.

[0009] The remodeled sash 1 comprises a new frame 10, a new shoji screen 14, a cover body 16, a screen door 18, a decorative material 30, a trim material 32, an attachment 34, a spacer 36 and a connector 39.

[0010] The new frame 10 is newly installed for renovation purposes and functions as a frame body supporting the new shoji screen 14. The new frame 10 is formed by extrusion molding or the like using metal or resin material, and has a new upper frame 20a, a new lower frame 20b, and a pair of new vertical frames 20c. The new frame 10 is formed into a rectangular shape by connecting the new upper frame 20a, the new lower frame 20b, and the pair of new vertical frames 20c.

[0011] The new shoji screen 14 is provided on the inner periphery of the new frame 10 and is slidably attached to the new frame 10. In the example of Figure 1, two new shoji screens 14 are shown, but this is not limited to two, and the number may be one or three or more. In the following explanation, the thickness direction of the new shoji screen 14 is referred to as the projection direction, and the direction perpendicular to the projection direction is referred to as the facing direction.

[0012] The existing frame 12 is a rectangular frame body that has been attached to the main body 28 since before the renovation. The existing frame 12 and the frame member 24 are connected. The existing frame 12 has an existing upper frame 22a, an existing lower frame 22b, and a pair of existing vertical frames 22c. The existing frame 12 is formed by extrusion molding or the like using a metal material. The frame member 24 is formed into a rectangle using a plate material.

[0013] The decorative material 30, trim material 32, and attachment 34 are provided on the indoor side and cover the space between the new frame 10 and the existing frame 12 from the indoor side. The decorative material 30 is formed in a plate shape and extends along the front direction. The trim material 32 supports one end of the decorative material 30 and is fixed to the frame member 24. The attachment 34 supports the other end of the decorative material 30 and is fixed to the new frame 10. The attachment 34 is fixed to the new frame 10 and limits movement of the new frame 10 in the front direction.

[0014] The connector 39 connects the new upper frame 20a of the new frame 10 to the building frame 28, and the load of the new upper frame 20a can be transmitted directly to the frame 28. "Directly" means that the load of the new upper frame 20a can be transmitted directly to the frame 28 without going through the existing frame 12.

[0015] The decorative material 30, the trim 32, and the attachment 34 are not limited to being composed of three components, but may be composed of one or two components. The decorative material 30, the trim 32, and the attachment 34 are collectively referred to as decorative components, and constitute the design surface of the remodeled sash 1 on the interior side.

[0016] The cover body 16 is formed in a rectangular shape and covers the inner peripheral side and the exterior side of the four sides of the existing frame 12. The cover body 16 also functions to connect to the new frame 10 and the existing frame 12 and attach the new frame 10 to the existing frame 12. In this way, the cover body 16 has the function of covering the existing frame 12 and the function of attaching the new frame 10 to the existing frame 12, so that the sash used during new construction can be used as the new frame 10 for the remodeled sash 1 without having to prepare a new frame specifically for the remodeled sash, thereby increasing the options for the new frame 10 during renovation. In addition, the number of parts for the remodeled sash 1 can be reduced, making the installation process for the remodeled sash 1 easier.

[0017] Figure 2 is an enlarged cross-sectional view of the upper side of the remodeled sash 1. The existing upper frame 22a of the existing frame 12 has a base plate 50, a protruding portion 52, an outer wall portion 54, and a seat portion 55. The base plate 50 extends along the upper edge of the opening 4 and extends in the forward direction from the outside of the room toward the frame member 24 in a vertical cross section. A pair of protruding portions 52 are formed to protrude downward from the base plate 50. The protruding portions 52 functioned as rails to guide the sliding of the existing shoji screen (not shown).

[0018] The outer wall portion 54 is formed so as to hang down from the outside edge of the base plate portion 50. The seating portion 55 is formed at the inside edge of the base plate portion 50 and is seated so as to catch on the surface of the frame member 24. The seating portion 55 is fastened to the frame 28 with screws.

[0019] The new upper frame 20a of the new frame 10 has a base plate portion 56, a protruding portion 58, a protruding piece 60, an outer wall portion 62, and a connecting portion 64. The base plate portion 56 extends along the upper edge of the opening 4 and extends in the forward direction in a vertical cross section. The base plate portion 56 is formed from two members and is joined together by being tightened by the connecting portion 64. A pair of protruding portions 58 are formed so as to protrude downward from the base plate portion 56. The protruding portions 58 function as rails to guide the sliding of the new shoji screen 14.

[0020] The protruding piece 60 protrudes upward from a midpoint on the base plate portion 56, that is, toward the outer periphery in the front view direction. The protruding piece 60 may be formed continuously in a direction perpendicular to the front view direction and the vertical direction, or may be formed with multiple partial protrusions. The protruding piece 60 is located between a pair of protruding portions 58 in the front view direction. The protruding piece 60 has an abutment surface that abuts against the cover body 16. The outer wall portion 62 is formed so as to hang down from the outside-side end of the base plate portion 56. The protruding piece 60 makes it easy to screw the cover body 16.

[0021] The upper cover frame 26a of the cover body 16 has a first plate portion 70, a second plate portion 72, a hollow portion 74, a first tapping hole 76a, a second tapping hole 76b, and an attachment portion 78. The hollow portion 74 is also called a hollow portion, and the same applies to other hollow portions described below.

[0022] The first plate portion 70 of the upper cover frame 26a extends along the upper edge of the opening 4 and extends in the forward direction in a vertical cross section. The first plate portion 70 has a step 70a at the intermediate mounting portion 78, and the step 70a causes the interior side to shift upward and approach the frame member 24. The first plate portion 70 is positioned on the inner periphery of the existing frame 12 and covers the protrusion portion 52 of the existing frame 12.

[0023] The second plate portion 72 is connected to the outdoor end of the first plate portion 70 and extends in the viewing direction. The second plate portion 72 extends from the outdoor end of the first plate portion 70 toward the outer periphery, covers the outer wall portion 54 of the existing frame 12, and forms a design surface.

[0024] The hollow portion 74 is located on the outdoor side of the cover body 16 and forms a hollow hole along the longitudinal direction of the cover body 16. The hollow portion 74 is a hollow portion that forms a cavity. A first tapping hole 76a and a second tapping hole 76b are formed in the hollow portion 74.

[0025] The hollow portion 74 is provided in a position overlapping the outer periphery of the newly installed frame 10 in the view direction. Forming the hollow portion 74 in the upper cover frame 26a improves the load-bearing capacity of the renovated sash 1, and even if the newly installed shoji screen 14 is exposed to strong winds and impacts or loads are applied upward to the newly installed upper frame 20a, the hollow portion 74 can absorb them.

[0026] The mounting portion 78 is located on the interior-facing side of the hollow portion 74 and has a mounting surface 78a for the new upper frame 20a. The mounting portion 78 protrudes inward from the first plate portion 70 in the viewing direction. The mounting surface 78a faces the interior of the room, making it possible to mount the new frame 10 from the interior side. The mounting surface 78a can be formed wide upward by the step 70a, providing a wide surface for mating with the protruding piece 60 of the new upper frame 20a. By providing the mounting portion 78 on the side of the hollow portion 74, the tip of the first screw 40 can be accommodated inside the hollow portion 74. The first screw 40 is located on the outer periphery of the new frame 10.

[0027] The interior-side end of the first plate portion 70 and the seat portion 55 of the existing upper frame 22a are connected from below by the second screw 42 while facing each other, and are fixed directly to the main body 28. This allows the load of the first plate portion 70 to be transmitted to the main body 28 without going through the existing frame 12. The interior-side end of the first plate portion 70 functions as a fixing portion 70b that is fixed to the main body 28. The second screw 42 is screwed in along the upward direction of the viewing direction, passing through the upper cover frame 26a, hanging member 38, existing upper frame 22a, and frame member 24 in that order, and engaging with the main body 28 located on the outer periphery.

[0028] The mounting surface 78a and the protruding piece 60 of the new upper frame 20a are in surface contact with each other and are connected from the inside of the room by the first screw 40. The first screw 40 is screwed in along the projection direction. This allows the new frame 10 to be attached from the inside of the room.

[0029] The connector 39 secures the indoor-side base plate 56 of the new upper frame 20a to the main body 28, preventing deformation of the indoor-side end of the new upper frame 20a. The connector 39 includes a hanging member 38, an elastic body 41, a second screw 42, and a third screw 44.

[0030] 3 is a perspective view of the hanging member 38. The hanging member 38 has a first plate portion 38a, a second plate portion 38b, a connecting plate portion 38c, a notch portion 38d, and a screw hole portion 38e.

[0031] The first plate portion 38a and the second plate portion 38b face each other and form parallel plate surfaces. The connecting plate portion 38c connects the first plate portion 38a and the second plate portion 38b. The first plate portion 38a is placed above the fixing portion 70b of the cover body 16. The second plate portion 38b is provided below the first plate portion 38a and is connected to the new upper frame 20a. This allows the new frame 10 to be supported in a suspended state. The fixing portion 70b of the upper cover frame 26a functions as a receiving portion that receives the first plate portion 38a of the hanging member 38.

[0032] The notch 38d is formed so that the edge of the first plate 38a is recessed toward the connecting plate 38c. The notch 38d is open in the direction away from the connecting plate 38c, making it easy to insert the second screw 42. The screw hole 38e is formed so as to penetrate the second plate 38b.

[0033] The elastic body 41 is provided on the lower part of the first plate portion 38a and serves as a distance adjustment member that abuts against the upper cover frame 26a to adjust the distance between the upper cover frame 26a and the first plate portion 38a, and also serves as a cushioning member. The elastic body 41 is disposed between the first plate portion 38a and the fixing portion 70b of the upper cover frame 26a, and is received by the fixing portion 70b. The elastic body 41 is provided on the lower part of the first plate portion 38a, but may also be provided on the upper part of the first plate portion 38a, or may be provided on both the upper and lower parts of the first plate portion 38a.

[0034] Because the cutout portion 38d is open, the first plate portion 38a can be inserted from the indoor side into the gap formed between the existing frame 12 and the cover body 16, into which the second screw 42 has been inserted, i.e., the gap between the fixing portion 70b and the frame 28. This allows the hanging member 38 to be positioned with the fixing portion 70b of the cover body 16 fastened with the second screw 42.

[0035] 2, the hanging member 38 is positioned on the outer periphery of the new frame 10, closer to the interior than the first screw 40. This allows the hanging member 38 to be attached after the new frame 10 is attached to the inner periphery of the cover body 16. The second plate portion 38b is connected to the new upper frame 20a by the third screw 44.

[0036] The elastic body 41 is held in an elastically deformed state by tightening the third screw 44. In other words, tightening the third screw 44 lifts the new upper frame 20a upward, and a downward load is applied to the first plate portion 38a, which elastically deforms the elastic body 41. This makes it possible to adjust the gap between the upper cover frame 26a and the hanging member 38.

[0037] The third screw 44 is disposed at a position where it overlaps with the second screw 42 in the vertical direction. The two screws do not shift in the depth direction (longitudinal direction of the newly installed upper frame 20a), so the load can be transmitted securely.

[0038] The connecting plate portion 38c may connect the indoor end of the first plate portion 38a and the outdoor end of the second plate portion 38b. In other words, the hanging member 38 may be formed in a substantially S-shape in side view.

[0039] 4 is an enlarged cross-sectional view of the underside of the remodeled sash 1. The existing sill 22b has a first protrusion 52a, a second protrusion 52b, an outer wall 54, and a seat 55. The first protrusion 52a is located on the outside of the room relative to the second protrusion 52b and is lower than the second protrusion 52b.

[0040] The new lower frame 20b has a base plate portion 56, a protruding portion 58, a protruding piece 60, a connecting portion 64, a first hollow portion 67, a second hollow portion 68, a foot portion 69a, and a protrusion portion 69b. The first hollow portion 67 and the second hollow portion 68 are formed below the base plate portion 56. The first hollow portion 67 and the second hollow portion 68 can improve the load-bearing capacity of the new lower frame 20b.

[0041] The first hollow portion 67 is placed on the lower cover frame 26b via a cushioning material. The protruding piece 60 protrudes downward from the first hollow portion 67 at the bottom of the base plate portion 56 and is located between the pair of protruding portions 58 in the front-to-back direction. The protruding piece 60 protrudes outward along the front-to-back direction.

[0042] The foot 69a protrudes downward from the second hollow portion 68. The foot 69a is located on the indoor side of the protrusion 58 on the indoor side, and on the indoor side of the new lower frame 20b. The foot 69a abuts against the spacer 36 to support the indoor side of the new lower frame 20b. The protrusion 69b protrudes downward from a position on the outdoor side of the foot 69a and abuts against the spacer 36.

[0043] The lower cover frame 26b has a first plate portion 70, a second plate portion 72, a hollow portion 74, a first tapping hole 77a, a second tapping hole 77b, and an attachment portion 78.

[0044] The first plate portion 70 of the lower cover frame 26b extends along the lower side of the opening 4 and extends in the forward direction in the longitudinal cross section. The first plate portion 70 is disposed on the inner periphery of the existing frame 12 and covers the protrusion portion 52 of the existing frame 12.

[0045] The second plate portion 72 is connected to the outdoor end of the first plate portion 70 and extends in the viewing direction. The second plate portion 72 extends from the outdoor end of the first plate portion 70 toward the outer periphery, covers the outer wall portion 54 of the existing frame 12, and forms a design surface.

[0046] The hollow portion 74 is located on the outdoor side of the cover body 16 and forms a hollow hole along the longitudinal direction of the cover body 16. The hollow portion 74 is provided on the upper part of the first plate portion 70. A first tapping hole 77a and a second tapping hole 77b are formed in the hollow portion 74. Forming a hollow in the lower cover frame 26b can absorb impacts and improve load-bearing capacity. In addition, the gap with the new lower frame 20b can be reduced, making it easier to place the new lower frame 20b on the lower cover frame 26b.

[0047] The mounting portion 78 is located on the interior-facing side of the hollow portion 74 and has a mounting surface 78a for mounting to the new lower frame 20b. The mounting portion 78 protrudes inward from the first plate portion 70 along the viewing direction. The mounting surface 78a faces the interior of the room, making it possible to mount the new frame 10 from the interior side. By providing the mounting portion 78 on the side of the hollow portion 74, the tip of the first screw 46 can be accommodated inside the hollow.

[0048] With the indoor-side end of the first plate portion 70 facing the seat portion 55 of the existing lower frame 22b, they are connected from below by second screws 42 and fixed to the body 28. The second screws 42 are screwed in along the downward direction of the view and screw into the body 28 located on the outer periphery.

[0049] The mounting surface 78a and the protruding piece 60 of the new lower frame 20b are in surface contact with each other and are connected from the inside of the room by the first screw 46. The first screw 46 is screwed in along the projection direction. This allows the new frame 10 to be attached from the inside of the room.

[0050] The height adjustment mechanism 80 is provided on the lower cover frame 26b and is interposed between the lower cover frame 26b and the existing lower frame 22b, causing the lower cover frame 26b to abut against the first protrusion portion 52a of the existing lower frame 22b. This allows the new lower frame 20b to be placed on the existing lower frame 22b via the lower cover frame 26b, and the weight of the new shoji screen 14 can be supported by the existing lower frame 22b. The height adjustment mechanism 80 is located below the new shoji screen 14 on the outside of the room, and can prevent deformation of the outside portion of the new lower frame 20b.

[0051] The height adjustment mechanism 80 has a nut 80a fixed to the lower cover frame 26b and a screw 80b that screws into the nut 80a. When the screw 80b is rotated, the screw 80b is displaced in the up and down direction.

[0052] The spacer 36 is located below the new sill 20b on the indoor side and supports the new sill 20b from below. The spacer 36 abuts against the foot 69a and bears the weight of the new sill 20b. The spacer 36 is located below the protrusion 58 on the indoor side and bears the weight of the new shoji screen 14 supported by the protrusion 58. This makes it possible to suppress deformation of the new sill 20b on the indoor side, even if the new sill 20b is positioned far away from the frame member 24 and the main body 28 and on the inner periphery.

[0053] 5 is a perspective cross-sectional view of the lower cover frame 26b and the spacer 36. The spacer 36 is formed in a hollow cylindrical shape and extends along the lower cover frame 26b. The spacer 36 is located on the indoor side of the hollow portion 74 of the lower cover frame 26b and is placed on the first plate portion 70.

[0054] The spacer 36 has a screw insertion hole 84 on the side opposite the mounting surface 78a. A first screw 46 is inserted into the screw insertion hole 84. The spacer 36 is fixed to the mounting portion 78 together with the protruding piece 60 of the new lower frame 20b by the first screw 46. The protruding piece 60 is sandwiched between the mounting portion 78 and the spacer 36.

[0055] The spacer 36 has a recess 82, a first receiving portion 83a, a second receiving portion 83b, a first contact rib 85a, and a second contact rib 85b. The recess 82 has a semicircular cross section formed on the top surface and is used to allow the spacer 36 to slip under the foot portion 69a of the new lower frame 20b.

[0056] The first receiving portion 83a is formed on the upper surface of the spacer 36 and receives the foot portion 69a of the new lower frame 20b. The first receiving portion 83a is located on the indoor side of the recess 82, and the second receiving portion 83b is located on the outdoor side of the recess 82 and receives the protrusion 69b of the new lower frame 20b. By supporting at two points, the new lower frame 20b can be stably supported.

[0057] The first abutment rib 85a and the second abutment rib 85b are formed on the underside of the spacer 36, and the first abutment rib 85a is located closer to the interior of the room than the second abutment rib 85b. The first abutment rib 85a and the second abutment rib 85b have different heights depending on the step of the first plate portion 70, and the second abutment rib 85b abuts against the first plate portion 70 at a position lower than the first abutment rib 85a.

[0058] 6 is a diagram illustrating a method for attaching the spacer 36. The spacer 36 is attached after the lower cover frame 26b and the new lower frame 20b are attached to the existing lower frame 22b. A storage chamber A for the spacer 36 is formed below the new lower frame 20b. To ensure that the spacer 36 abuts against the new lower frame 20b, the vertical length of the spacer 36 is equal to or greater than the gap between the foot portion 69a and the first plate portion 70.

[0059] The spacer 36 is moved from the indoor side to below the new sill 20b, and the recess 82 is brought into contact with the tip of the foot 69a. The spacer 36 is then rotated around the tip of the foot 69a as a rotation fulcrum, sliding underneath the foot 69a and pushing it toward the mounting portion 78. As a result, the spacer 36 supports the foot 69a and the protrusion 69b, and is fixed to the mounting portion 78 together with the protruding piece 60 by the first screw 46.

[0060] The spacer 36 has a portion on the exterior side of the recess 82 that has a height dimension H2 that is greater than the height dimension H1 of the storage chamber A from the foot 69a to the underside of the storage chamber A. That is, the height dimension H1 from the first receiving portion 83a to the first abutment rib 85a shown in FIG. 5 is smaller than the height dimension H2 from the second receiving portion 83b to the second abutment rib 85b. Although the height of the spacer 36 on the exterior side is greater, by inserting it into the recess 82 while rotating it, the portion with height dimension H2 can be easily positioned at the back of the storage chamber A.

[0061] Fig. 7 is a horizontal cross-sectional view of the remodeled sash 1 of the first embodiment. Since the remodeled sash 1 has a symmetrical shape in the horizontal cross-section, Fig. 7 shows only the left cross-section.

[0062] The existing vertical frame 22c has a base plate portion 50, a protruding portion 52, an outer wall portion 54, and a seat portion 55. The new lower frame 20b has a base plate portion 56 and a protruding piece 60. The protruding piece 60 protrudes from the base plate portion 56 in the outer circumferential direction in the viewing direction.

[0063] The vertical cover frame 26c has a first plate portion 70, a second plate portion 72, a hollow portion 74, and an attachment portion 78. The first plate portion 70 extends along the vertical side of the opening 4 and extends in the forward direction in a horizontal cross section. The first plate portion 70 is disposed on the inner periphery of the existing frame 12 and covers the protrusion portion 52 of the existing frame 12.

[0064] The second plate portion 72 is connected to the outdoor end of the first plate portion 70 and extends in the viewing direction. The second plate portion 72 extends from the outdoor end of the first plate portion 70 toward the outer periphery, covering the outer wall portion 54 of the existing frame 12 and forming a design surface. The second plate portion 72 also extends from the outdoor end of the first plate portion 70 toward the inner periphery.

[0065] The hollow portion 74 is located on the outdoor side of the cover body 16 and forms a hollow hole along the longitudinal direction of the cover body 16. The hollow portion 74 is provided on the outer periphery of the first plate portion 70. By forming a hollow in the vertical cover frame 26c, it is possible to absorb the impact when the new shoji screen 14 hits it when opening or closing.

[0066] The mounting portion 78 protrudes from the first plate portion 70 and has a mounting surface 78a for mounting to the new vertical frame 20c. The mounting portion 78 protrudes inward from the first plate portion 70 in the viewing direction. The mounting surface 78a faces the interior of the room, making it possible to mount the new frame 10 from the interior side.

[0067] With the indoor-side end of the first plate portion 70 facing the seat portion 55 of the existing upper frame 22a, they are connected from below by second screws 42 and fixed to the body 28. The second screws 42 are screwed in along the upward direction in the viewing direction and engage with the body 28 located on the outer periphery.

[0068] The mounting surface 78a and the protruding piece 60 of the new vertical frame 20c are in surface contact with each other and are connected from the inside of the room by the first screw 48. The first screw 48 is screwed in along the projection direction. This allows the new frame 10 to be attached from the inside of the room.

[0069] The hanging member 38 functions as a reinforcing member that fixes the indoor-side base plate portion 56 of the new vertical frame 20c to the frame 28 and prevents the indoor-side portion of the new vertical frame 20c from deforming. The hanging member 38 also limits the movement of the protruding piece 60 and the mounting portion 78 in the finder direction, preventing the screws of the protruding piece 60 and the mounting portion 78 from becoming loose.

[0070] 8 is a partial perspective view of the cover body 16, and is a diagram for explaining the connection of the cover body 16. The frames on the four sides that make up the cover body 16 are pre-assembled into a rectangular shape and attached to the existing frame 12 and the main body 28.

[0071] The upper cover frame 26a and the lower cover frame 26b are arranged parallel to each other, and the pair of vertical cover frames 26c are also arranged parallel to each other. Figure 2 shows the upper cover frame 26a and one of the vertical cover frames 26c connected together. The upper cover frame 26a and one of the vertical cover frames 26c are connected together with fixing screws 27.

[0072] A first tapping hole 76a and a second tapping hole 76b are formed in the upper cover frame 26a, and a screw insertion hole is formed in the upper end of one of the vertical cover frames 26c. A pair of fixing screws 27 are inserted into the screw insertion holes in one of the vertical cover frames 26c and screwed into the first tapping hole 76a and the second tapping hole 76b, respectively. The opposite end of the upper cover frame 26a is also connected to the other vertical cover frame 26c by the fixing screws 27.

[0073] In addition, first and second tapping holes 77a and 77b are formed in the lower cover frame 26b, and screw insertion holes are formed in the lower ends of the pair of vertical cover frames 26c. Both ends of the lower cover frame 26b are connected to the lower ends of the pair of vertical cover frames 26c with fixing screws 27. In other words, the pair of vertical cover frames 26c are connected to both ends of the upper cover frame 26a and both ends of the lower cover frame 26b, respectively. This allows the cover body 16 to be assembled into a rectangular shape.

[0074] The cover body 16, assembled into a rectangle, covers the inner periphery of each frame that constitutes the four sides of the existing frame 12 and is fixed to the main body 28, and is also connected to each frame that constitutes the four sides of the new frame 10. Note that the assembly of the cover body 16 is not limited to screw fastening using tapping holes, and it may also be connected using, for example, an L-shaped attachment.

[0075] Figure 9 is a schematic diagram for explaining the method of installing a new shoji screen 14. The frames that make up the four sides of the cover body 16 are connected to assemble the cover body 16 into a rectangle. The new frame 10 is also assembled into a rectangle. The assembly of the new frame 10 and cover body 16 may be performed in a factory or on-site.

[0076] The assembled cover body 16 is moved to the inner periphery of the existing frame 12 and screwed to the main body 28 together with the seating portion 55 of the existing frame 12. A first sealant 86 is provided between the first plate portion 70 of the cover body 16 and the seating portion 55 of the existing frame 12.

[0077] The first sealant 86 is, for example, a waterproof tape that is attached around the entire periphery of the seating portion 55 or the first plate portion 70 and is sandwiched between the seating portion 55 and the first plate portion 70. The first sealant 86 is tightly attached to the existing frame 12 and the cover body 16 by the axial force of the second screw 42, thereby improving the sealing performance. The first sealant 86 may be attached so as to close the gap between the existing frame 12 and the cover body 16 from the indoor side.

[0078] Next, the new frame 10 is moved from the indoor side toward the outdoor side toward the inner periphery of the cover body 16. The mounting surface 78a of the mounting portion 78 faces the indoor side, and the abutment surface 60a of the protruding piece 60 faces the outdoor side. The abutment surface 60a of the protruding piece 60 comes into surface contact with the mounting surface 78a of the mounting portion 78, and they are connected by the first screw 40. Workers can install the new frame 10 from the indoor side, making work easy even on the second floor or higher.

[0079] The second sealing material 88 is, for example, waterproof tape, and is attached around the entire circumference of the mounting portion 78 or the protruding piece 60, and is sandwiched between the mounting portion 78 and the protruding piece 60. The second sealing material 88 is tightly attached to the cover body 16 and the new frame 10 by the axial force of the first screw 40, thereby improving the sealing performance. Note that the first sealing material 86 and the second sealing material 88 are not limited to waterproof tape, and may be waterproof sheets, or a combination of waterproof tape and waterproof sheets.

[0080] 10 is a longitudinal cross-sectional view of the remodeled sash 100 of the second embodiment, showing an enlarged view of the lower frame side. The remodeled sash 100 of the second embodiment differs from the remodeled sash 1 of the first embodiment shown in FIG. 1 in that the lower cover frame 126b of the cover body 116 is composed of two members.

[0081] The lower cover frame 126b has a first plate portion 170, a second plate portion 172, a hole portion 173, an insertion hole 176, an attachment portion 178, a first hollow portion 174, and a second hollow portion 175. A second hollow forming portion 175a having a U-shaped cross section that forms the second hollow portion 175 extends in the longitudinal direction, and the second hollow forming portion 175a and a portion of the second plate portion 172 join together to form the second hollow portion 175 into a hollow shape with a rectangular cross section. The second hollow portion 175 has an engaging portion 177 and a locking portion 179 for joining the first plate portion 170 and the second plate portion 172, and is formed by joining the first plate portion 170 and the second plate portion 172.

[0082] The first plate portion 170 extends in the forward direction and covers the existing frame 12 from the inner periphery. The second plate portion 172 is connected to the outer periphery of the end of the first plate portion 170 on the outdoor side. The second plate portion 172 may not only cover the existing lower frame 22b, but also the outdoor side of the new lower frame 20b.

[0083] The lower cover frame 126b is formed by joining two members, and the second plate portion 172 is provided so as to be detachable from the first plate portion 170. Each component of the lower cover frame 126b will be described with reference to new drawings.

[0084] 11 is a perspective cross-sectional view of the lower cover frame 126b and height adjustment mechanism 180 of the second embodiment. A hole 173 is formed in the first plate portion 170, and the height adjustment mechanism 180 is fixed to the hole 173. In other words, the height adjustment mechanism 180 is provided on the first plate portion 170 of the lower cover frame 126b. The height adjustment mechanism 180 is displaceable in the vertical direction, and can come into contact with the first protrusion portion 52a of the existing lower frame 22b by displacement in the vertical direction.

[0085] A first hollow portion 174 and a second hollow portion 175 are formed adjacent to each other at the top of the first plate portion 170. An insertion hole 176 and an attachment portion 178 are formed in the first hollow portion 174. The insertion hole 176 is coaxial with the hole portion 173 and is formed so that a tool can be applied to the height adjustment mechanism 180. The protruding piece 60 of the new lower frame 20b is screwed to the attachment portion 178.

[0086] The new lower frame 20b is placed on the second hollow portion 175 located on the outdoor side. The second hollow portion 175 forms a smaller space than the first hollow portion 174, and has increased rigidity. An engagement portion 177 is formed on the outdoor side of the second hollow portion 175. The engagement portion 177 is a pair of protrusions spaced apart in the vertical direction, protruding toward each other and forming a slit on the outdoor side of the second hollow portion 175.

[0087] A locking portion 179 is formed on the interior-facing surface of second plate portion 172, protruding in the forward direction. Locking portion 179 is a pair of flexible claws that can be locked with a pair of engagement portions 177. Engagement portions 177 and locking portion 179 form a so-called snap-fit structure, and locking portion 179 is locked with engagement portion 177 by being pushed into a slit in engagement portion 177, joining second plate portion 172 and first plate portion 170 and forming second hollow portion 175. Because second hollow portion 175 is smaller than hollow portion 74 shown in FIG. 4, the engagement between engagement portion 177 and locking portion 179 can be strengthened.

[0088] Height adjustment mechanism 180 has a first nut 180a, a screw 180b, and a second nut 180c. First nut 180a is fixed in hole 173, and rotation is restricted. Screw 180b is threadedly engaged with first nut 180a and second nut 180c. As screw 180b rotates, it is displaced in the vertical direction relative to first nut 180a. Second nut 180c is provided so as to be rotatable with respect to screw 180b or so as to be rotatable relative to first nut 180a.

[0089] The second nut 180c is, for example, a hexagonal nut, and can be rotated by engaging a tool such as a wrench with its outer circumferential surface. When the second nut 180c is rotated, it rotates relative to the first nut 180a or the screw 180b, displacing the lower end of the second nut 180c in the vertical direction. In this way, the height adjustment mechanism 180 has input portions for height adjustment on the screw head of the screw 180b and the outer circumferential surface of the second nut 180c.

[0090] FIG. 12 is a diagram for explaining a method of adjusting the height adjustment mechanism 180. FIG. 12 shows a state in which the second plate portion 172 has been removed from the first plate portion 170. The lower cover frame 126b of the cover body 116 is placed on the existing lower frame 22b, and as shown in FIG. 10, is fixed to the main body 28 by the second screws 42. As a result, the cover body 116 is attached to the inner periphery of the existing frame 12, and covers the inner periphery of the existing frame 12. Note that the second plate portion 172 is fixed to the main body 28. The cover body 116 may be attached in a rectangular assembled state, or may be attached individually to each of the four sides.

[0091] At this time, the first plate portion 170 is placed on the second protrusion portion 52b and is spaced apart from the first protrusion portion 52a. The worker then inserts a first tool 90, such as a screwdriver, into the insertion hole 176 and turns the screw 180b to adjust the height of the lower end position of the height adjustment mechanism 180 to match the height of the first protrusion portion 52a.

[0092] Next, the worker places the new frame 10 on the inner periphery of the cover body 116 and places the new lower frame 20b on the lower cover frame 126b. The worker installs the spacer 36 and screws the protruding piece 60 to the mounting portion 178. The worker also attaches the new shoji screen 14 to the new frame 10. At this time, the weight of the new shoji screen 14 is applied to the lower cover frame 126b, but because the height of the height adjustment mechanism 180 has been adjusted in advance to match the second protrusion portion 52b, excessive deformation of the lower cover frame 126b does not occur.

[0093] Next, with the second plate portion 172 removed, the worker inserts a second tool 92, such as a wrench, into the gap between the lower cover frame 126b and the existing lower frame 22b from outside the room and rotates the second nut 180c, displacing the lower end of the height adjustment mechanism 180 vertically until it properly abuts against the first protrusion portion 52a. This allows the height of the height adjustment mechanism 180 to be adjusted with the new frame 10 and new shoji screen 14 installed. In this way, because the height of the height adjustment mechanism 180 can be adjusted from outside the room when the second plate portion 172 is removed, final adjustments can be made with the new frame 10 and new shoji screen 14 installed.

[0094] Next, the worker presses the locking portion 179 of the second plate portion 172 into the engaging portion 177 of the first plate portion 170 to lock it, and attaches the second plate portion 172 to the first plate portion 170. In this manner, the remodeled sash 100 is attached. By making the height adjustment mechanism 180 adjustable from two directions, adjustments can be made before and after the new frame 10 is installed.

[0095] Because the second plate portion 172 is detachable from the first plate portion 170, if the second plate portion 172, which constitutes the design surface, is damaged, the second plate portion 172 can be easily replaced. Furthermore, because the second plate portion 172 is easily replaced, it can be replaced at the work site with a second plate portion 172 of a different vertical length. This allows for flexible changes to the second plate portion 172 according to the shape of the existing frame 12. Furthermore, by giving the lower cover frame 126b the function of covering the existing lower frame 22b, the function of fixing the new lower frame 20b, and the function of bearing the load of the new lower frame 20b via the height adjustment mechanism 180, the number of parts can be reduced and installation can be improved.

[0096] 13 is a horizontal cross-sectional view of a remodeled sash 100 of the second embodiment. The vertical cover frame 126c has a first plate portion 170, a second plate portion 172, a first hollow portion 174, and a second hollow portion 175. The second hollow portion 175 includes a portion of the first plate portion 170 and the second plate portion 172, and is formed into a hollow shape with a rectangular cross section by connecting the first plate portion 170 and the second plate portion 172 with an engaging portion 193, a locking portion 194, and a protruding piece 195.

[0097] The vertical cover frame 126c is composed of two members, a first plate portion 170 and a second plate portion 172, and the second plate portion 172 is detachable from the first plate portion 170. A flange-shaped engagement portion 193 is formed at the end of the second hollow portion 175, located on the outdoor side of the first plate portion 170. In addition, an insertion hole 196 for the fourth screw 45 is formed in the first plate portion 170.

[0098] A hook-shaped locking portion 194 is formed on the interior-facing surface of the second plate portion 172. The locking portion 194 can be locked to the engagement portion 193. A protruding piece 195 is formed on the interior-facing surface of the second plate portion 172, protruding in the forward direction. The protruding piece 195 is located more inward than the locking portion 194, and is screwed to the first plate portion 170 by the fourth screw 45 while in surface contact with the first plate portion 170. In this way, by providing the second plate portion 172 as detachable, it is possible to select the second plate portion 172 according to the shape of the existing frame 12. Furthermore, the first plate portion 170 can be made a common part, and the second plate portion 172 according to the shape of the existing frame 12 can be attached.

[0099] It should be noted that the embodiments are merely illustrative, and that various modifications are possible in the combination of the components, and that such modifications are within the scope of the present disclosure, as will be understood by those skilled in the art. Therefore, the descriptions and drawings in this specification should be treated as illustrative rather than restrictive.

[0100] For example, in the first embodiment, the cover body 16 is pre-assembled into a rectangle and placed on the inner periphery of the existing frame 12, but this is not limiting, and each frame of the cover body 16 may be placed individually on the inner periphery of the existing frame 12, or the cover body 16 may be placed partially without being connected. Also, the cover body 16 is integrated with a portion covering the visible surface on the outside of the existing frame 12 and a portion covering the visible surface side of the existing frame 12, but separate members may be connected together to use the cover body 16.

[0101] Furthermore, in the first embodiment, the remodeled sash 1 is used for a sliding window, but this is not the only possible application. For example, the remodeled sash 1 can be used for a window with a shutter, a window with a storm shutter, a vertical sliding window, a bathroom window, etc. Furthermore, even if the first protrusion 52a is located on the exterior side of the existing sill 22b and is at the same height as or higher than the second protrusion 52b, the new sill 10 can be attached using the cover 16 of the embodiment.

[0102] In addition, although the first embodiment shows an aspect in which the lower cover frame 26b is a single member, this is not limiting. For example, the first plate portion 70 and the second plate portion 72 may be separate members, and the second plate portion 72 may be detachable from the first plate portion 70. [Explanation of symbols]

[0103] 1 Renovated sash, 4 Opening, 10 New frame, 12 Existing frame, 14 New shoji screen, 16 Cover body, 20a New upper frame, 20c New vertical frame, 20b New lower frame, 22a Existing upper frame, 22b Existing lower frame, 22c Existing vertical frame, 24 Frame member, 28 Body, 36 Spacer, 38 Hanging member, 40 First screw, 41 Elastic body, 42 Second screw, 44 Third screw, 45 Fourth screw, 46 First screw, 50 Base plate portion, 52 Protrusion portion, 52a First protrusion portion, 52b Second protrusion portion, 54 Outer wall portion, 55 Seat portion, 56 Base plate portion, 58 Protrusion portion, 60 Projecting piece, 100 renovated sash, 116 cover body, 126b lower cover frame, 126c vertical cover frame, 170 first plate portion, 172 second plate portion, 173 hole portion, 174 first hollow portion, 175 second hollow portion, 176 insertion hole, 177 engaging portion, 178 mounting portion, 179 locking portion, 180 height adjustment mechanism, 180a first nut, 180b screw, 180c second nut, 193 engaging portion, 194 locking portion, 195 projecting piece.

Claims

1. A retrofit sash installed in an opening of a building, a cover body having a cover frame and disposed on the inner circumferential side of the existing frame provided in the opening; A new frame disposed on the inner circumferential side of the cover body; A renovated sash comprising a hanging member provided on the interior side of the cover frame and connecting the surface along the projected direction of the new frame to the existing frame by screw fixing.

2. A renovated sash as described in Claim 1, wherein the hanging member is positioned on the outer periphery of the newly installed frame.

3. A renovated sash as described in claim 1 or 2, which is provided with decorative material connected to the newly installed frame and positioned inside the room rather than the hanging member.

4. A retrofit window installed in an opening in a building, An existing frame provided in the opening; A cover body having a cover frame and arranged on the inner circumferential side of the existing frame; A new frame arranged on the inner circumferential side of the cover body; A renovated window comprising a hanging member provided on the interior side of the cover frame and connecting a surface along the projected direction of the new frame to the existing frame by screw fixing.

Images