JP7573383B2 - Renovated sashes and base materials - Google Patents

Description

This disclosure relates to retrofit sashes and base materials.

Patent Document 1 discloses a remodeled sash that includes an existing frame remaining in an opening in a building, a new frame that is attached so as to cover the inner periphery of the new frame, a base material that is provided between the existing frame and the new frame, and a waterproof tape that is interposed between the base material and the frame member. Multiple base materials for attaching the new frame are provided on one side of the existing frame.

JP 2019-157537 A

In the technology described in Patent Document 1, multiple base materials are attached to one side of the existing frame, which means there are a large number of parts and the installation of the base materials is labor-intensive.

The purpose of this disclosure is to provide technology that can improve the installation of retrofit sashes.

In order to solve the above problems, one aspect of the present disclosure is a remodeled sash that is installed in an opening of a building, and includes a base material that is attached to the inner periphery of an existing frame installed in the opening, a new frame that is fixed to the base material on the inner periphery of the base material, and a screw that fixes the base material to the existing frame. The base material has a long hole portion into which the screw is inserted. The length of the base material is set according to the length of the existing frame.

Another aspect of the present disclosure is a base material for attaching a new frame to an existing frame installed in an opening in a building. This base material includes a fixing portion for fixing to the new frame and a long hole portion into which a screw for fixing to the existing frame can be inserted. The length of the base material is set according to the length of the existing frame.

FIG. 2 is a horizontal cross-sectional view of the remodeled sash of the first embodiment. FIG. 4 is a side view of the base material, the spacer, and the first screw. FIG. 4 is a plan view of the base material, the spacer, and the first screw. This is an oblique view of the base material attached to the existing frame. FIG. 2 is a perspective view of a spacer as viewed from above. FIG. 4 is a perspective view of the spacer as viewed from below. FIG. 2 is a horizontal cross-sectional view of the remodeled sash of the first embodiment, and is an enlarged view of the remodeled sash shown in FIG. 1 . FIG. 11 is a diagram for explaining the remodeled sash of the second embodiment, showing a horizontal cross-sectional view of the remodeled sash. FIG. FIG.

Figure 1 is a horizontal 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 section 2 that separates an indoor space from an outdoor space, forming an opening 4, and a fixture including the remodeled sash 1 is provided on the 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 screwed in, and supports a frame member 24 and the like. The indoor space and the outdoor space are located on both sides in the forward direction of the new shoji screen 14 that is fitted into the remodeled sash 1.

The renovated sash 1 has a new frame 10, a new shoji screen 14, a base material 16, a spacer 18, an intervening member 20, a trim material 32, an airtight tape 34, a cover material 36, a first screw 40, a fourth screw 46, a fifth screw 48 and a sixth screw 49.

The new frame 10 is newly installed for renovation purposes, and functions as a frame 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, a new lower frame, and a pair of new vertical frames, which are connected to form a rectangle. In Figure 1, one of the vertical frames is shown, and the other vertical frame, which has the same shape as the first vertical frame, is omitted.

The new shoji screen 14 is provided on the inner periphery of the new frame 10 and is 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 one screen or three or more screens may be used. 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 sight direction.

The existing frame 12 is a rectangular frame body, and is attached to the main body 28 by the second screw 42, the third screw 44, etc. before the renovation. The existing frame 12 and the frame member 24 are connected. The existing frame 12 has an existing upper frame, an existing lower frame, and a pair of existing vertical frames, which are connected to form a rectangle. The existing frame 12 is formed by extrusion molding or the like from a metal material. The frame member 24 is formed into a rectangle from a plate material.

The trim 32, airtight tape 34, and cover material 36 are provided on the indoor side and cover the gap between the new frame 10 and the existing frame 12 from the indoor side. The trim 32 is fixed to the frame member 24 by the fourth screw 46. The airtight tape 34 is provided to cover the gap on the indoor side between the new frame 10 and the existing frame 12, and is attached to the indoor end of the new frame 10 and the frame member 24. This improves watertightness and airtightness. The cover material 36 is provided between the new frame 10 and the trim 32 and is attached to the new frame 10 side. The trim 32 and cover material 36 cover the gap on the indoor side between the new frame 10 and the existing frame 12 and form the design surface on the indoor side of the remodeled sash 1. The trim 32 and cover material 36 are not limited to being composed of two members, and may be composed of one member as a decorative member.

The base material 16 is attached to the inner periphery of the existing frame 12 and is used to attach the new frame 10. An intervening member 20 is provided between the base material 16 and the new frame 10. The base material 16 is fixed to the existing frame 12 and the main body 28 by a first screw 40. The first screw 40 is inserted into the spacer 18. The spacer 18 is disposed between the base material 16 and the existing frame 12.

The new frame 10 is fixed to the base material 16 by a fifth screw 48 and a sixth screw 49 on the inner periphery of the base material 16. The fifth screw 48 is located on the outside of the room and connects the base material 16 and the new frame 10. The sixth screw 49 is located on the inside of the room and connects the base material 16 and the new frame 10. The sixth screw 49 is positioned offset in the viewing direction from the second screw 42 shown by the dotted line. By using the base material 16 to attach the new frame 10, there are fewer cases where the new frame 10 needs to be reshaped to match the shape of the existing frame 12, and the number of types of existing frames 12 to which the new frame 10 can be attached increases. In addition, by fixing the base material 16 to the existing frame 12 and the main body 28 with the first screw 40, the number of screw fastening processes can be reduced compared to when an intervening member is provided between the base material 16 and the existing frame 12 and screws are used to fix the existing frame 12 to the intervening member and screws to fix the base material 16 to the intervening member.

Figure 2 (A) is a side view of the base material 16, the spacer 18, and the first screw 40, and Figure 2 (B) is a plan view of the base material 16, the spacer 18, and the first screw 40. The base material 16 is formed longitudinally along the longitudinal direction of the new frame 10, and is formed to a length that matches the overall length of the new frame 10.

The base material 16 has a pedestal portion 62, a recess 64, an elongated hole portion 66, an outer wall portion 68, and an extension piece 70. The pedestal portions 62 are flat and are formed in a pair spaced apart in the projection direction. The pedestal portions 62 function as a seat that receives the new frame 10 via the intervening member 20. A recess 64 is formed between the pair of pedestal portions 62. The pedestal portions 62 function as a fixing portion for fixing the new frame 10.

A number of long holes 66 are formed in the recess 64 at intervals in the sight direction. The long holes 66 are formed longitudinally along the sight direction. Because the long holes 66 are longitudinal, the first screws 40 can slide within the long holes 66, and the first screws 40 can be inserted at any position in the sight direction. This makes it possible to attach the screws 40 to existing frames 12 of different shapes. The long holes 66 are formed in the recess 64 recessed from the base 62, so that the screw heads of the first screws 40 do not protrude beyond the base 62 and interfere with the intervening member 20.

The outer wall portion 68 bends from the outside end of the base material 16 and extends in the direction of view. The extension piece 70 is located on the outside of the room, but is formed on the inside of the room side of the outer wall portion 68, and extends toward the existing frame 12. The extension piece 70 extends longer than the outer wall portion 68. The extension piece 70 is provided so that the length in the extension direction (horizontal direction) can be shortened, and has a slit that allows the extension piece 70 to be broken at a predetermined length. The slits are formed along the longitudinal direction of the base material 16, and multiple slits may be formed at predetermined intervals. If the worker folds back the tip of the extension piece 70, the tip of the extension piece 70 will break along the slit, and the length of the extension piece 70 can be shortened. This allows the length of the extension piece 70 to be changed depending on the distance from the base material 16 to the existing frame 12, and the tip of the extension piece 70 can be attached in a state close to or in contact with the base plate portion 50 of the existing frame 12.

Although an example is shown in which there are three long holes 66, this is not limited to this number, and the number of long holes 66 is set based on the length of the base material 16 that is matched to the existing frame 12.

The spacer 18 is formed in a rectangular column shape and the first screw 40 is inserted through it. The spacer 18 abuts against the base material 16 and the existing frame 12, stabilizing the mounting state of the base material 16 that is bearing the load of the new frame 10 and the new shoji screen 14.

Figure 3 is a perspective view of the base material 16 attached to the existing frame 12. Figure 3 shows the existing vertical frame 12a and existing lower frame 12b of the existing frame 12, as well as the first base material 16a for the vertical frame and the second base material 16b for the lower frame of the base material 16.

The base material 16 is provided on each side of the existing frame 12, and is set to a length L1 corresponding to the length L2 of the side of the existing frame 12 to which the base material 16 is fixed. The length L1 of the base material 16 is the length in the direction along the side of the existing frame 12, and is the length of the base material 16 in the longitudinal direction.

For example, the base material 16 may be set to a length L1 that spans one side of the existing frame 12 so as to cover the entire length (L2) of that side, and may be set to a length L1 that is approximately the same as the entire length (L2) of one side of the existing frame 12. This allows the number of parts to be reduced and makes installation easier than when multiple base materials are provided for one side of the existing frame. Additionally, the length L1 of the base material 16 may be set to a length that is 2/3 or more of the entire length (L2) of the existing frame 12.

Figure 4 (A) is a perspective view of the spacer 18 as viewed from above, and Figure 4 (B) is a perspective view of the spacer 18 as viewed from below. The spacer 18 has a main body 72, an insertion hole 74, a neck 76, a head 78, and an engaged portion 80.

The main body 72 is formed in a columnar shape with a rectangular cross section. The direction along the long side of the cross section of the main body 72 is called the width direction of the main body 72. By forming the main body 72 long in the width direction, a larger contact area with the existing frame 12 can be secured compared to when the cross section is square. In addition, by changing the rotational position of the main body 72 to match the shape of the existing frame 12, it becomes easier to attach it to an existing frame 12 of a different shape.

The neck 76 protrudes cylindrically from one end surface of the body 72. The head 78 protrudes radially outward from the end of the neck 76 and is formed in a flange shape. The neck 76 connects the body 72 and the head 78. The insertion hole 74 is formed penetrating the center of the body 72, the neck 76, and the head 78, and the first screw 40 can be inserted through it. The engaged portion 80 is formed recessed in the other end surface of the body 72. The engaged portion 80 engages with the second spacer described below.

The neck portion 76 and head portion 78 can be inserted into the long hole portion 66 of the base material 16. With the spacer 18 shown in FIG. 2(A) attached to the base material 16, the neck portion 76 is inserted into the long hole portion 66 and one end face of the body portion 72 abuts against the base material 16. As shown in FIG. 2(B), the mounting orientation of the spacer 18 may be such that the width direction of the spacer 18 is parallel to the longitudinal direction of the base material 16 or perpendicular to it. The mounting orientation of the spacer 18 is determined according to the shape of the existing frame 12.

Figure 5 is a horizontal cross-sectional view of the remodeled sash 1 of the first embodiment, and is an enlarged view of the remodeled sash 1 shown in Figure 1. The existing frame 12 has a base plate portion 50, a first protrusion portion 52a, a second protrusion portion 52b, a seat portion 53, and an outer wall portion 54.

The base plate portion 50 extends along the vertical side of the opening 4 and extends in the forward direction from the outside of the room toward the frame member 24 in the horizontal cross section. The first protrusion portion 52a and the second protrusion portion 52b are formed to protrude inward from the base plate portion 50.

The outer wall portion 54 protrudes outward from the outside end of the base plate portion 50. The seat portion 53 is formed at the inside end of the base plate portion 50 and seats so as to catch on the surface of the frame member 24. The seat portion 53 is screwed to the main body 28 by the second screw 42. The base plate portion 50 is screwed to the main body 28 by the third screw 44.

The new frame 10 has a base plate portion 56, a first protrusion portion 58a, a second protrusion portion 58b, a third protrusion portion 58c, a fourth protrusion portion 58d, and an outer wall portion 60. The base plate portion 56 extends along the vertical side of the opening 4 and extends in the expected direction in a horizontal cross section. The base plate portion 56 is fixed to a pedestal portion 62 of the base material 16 by a fifth screw 48 or the like. A pair of pedestals 62 may be screwed to the base plate portion 56. The fifth screw 48 and the sixth screw 49 are screwed to the pedestal portion 62, respectively. The first protrusion portion 58a, the second protrusion portion 58b, the third protrusion portion 58c, and the fourth protrusion portion 58d protrude from the base plate portion 56 toward the inner periphery. The outer wall portion 60 protrudes from the end of the base plate portion 56 on the outside of the room toward the outer periphery.

The first screw 40 is inserted into any position of the long hole portion 66 according to the shape of the existing frame 12, penetrates the existing frame 12, and is fastened to the existing frame 12. This forms a hole portion 55 in the existing frame 12. In other words, the first screw 40 is inserted into a position within the longitudinal range of the long hole portion 66 where it penetrates the existing frame 12, and is fastened to the existing frame 12. This fixes the base material 16 to the existing frame 12. Since the first screw 40 is slidable while inserted into the long hole portion 66, the insertion position into the long hole portion 66 can be changed depending on the position where it is fastened to the existing frame 12. The long hole portion 66 increases the types of existing frames 12 to which the base material 16 can be attached, and the first screw 40 can be screwed into any position of the long hole portion 66 for existing frames 12 of different widths.

The long hole portion 66 of the base material 16 is located on the inner periphery side of the frame member 24. The long hole portion 66 is located on the exterior side of the frame member 24, and there is a large distance between the existing frame 12 and the base material 16. The first screw 40 is long enough to reach the main body 28.

The rigidity of the base material 16 may be reduced around the long hole portion 66 compared to a round hole, but because a spacer 18 is provided between the existing frame 12 and the base material 16, the load from the new frame 10 can be sufficiently transmitted from the base material 16 to the existing frame 12 via the spacer 18.

The extension piece 70 is broken so that the tip of the extension piece 70 is broken according to the distance between the base material 16 and the existing frame 12 so that the base portion 62 of the base material 16 is arranged parallel to the projection direction. As a result, when the base material 16 receives a load from the new frame 10, the extension piece 70 comes into contact with the existing frame 12, suppressing deformation of the outdoor portion of the base material 16.

Figure 6 is a diagram for explaining the renovated sash 100 of the second embodiment, showing a horizontal cross-sectional view of the renovated sash 100. Compared to the renovated sash 1 of the first embodiment shown in Figure 5, the renovated sash 100 of the second embodiment has a different distance between the base material 16 and the existing frame 112, and a different axial length of the spacer 118. The axial length of the spacer 118 is the length parallel to the axial direction of the first screw 40.

The existing frame 112 has a hollow forming portion 57 provided on the outer periphery of the base plate portion 56, and has a hollow. The first screw 40 is fastened to the existing frame 112. In this way, the base material 16 is not only fixed to the main body 28 and the existing frame 12 as shown in FIG. 5, but may also be fixed only to the existing frame 112. In either case, the base material 16 is fixed to the existing frame 112 on the inner periphery of the existing frame 112.

The new frame 110 is composed of a main body 110a extending in the forward direction and an outer wall 110b that is connected to the outside end of the main body 110a. The spacer 118 is composed of a first spacer 18a and a second spacer 18b. This spacer 118 will be described with reference to a new drawing.

Figure 7 (A) is a perspective view of the spacer 118, and Figure 7 (B) is an exploded view of the spacer 118. The spacer 118 can be connected in the axial direction of the insertion hole 74, and the length can be adjusted by connecting the first spacer 18a to the second spacer 18b. A plurality of second spacers 18b may be connected to the first spacer 18a.

The first spacer 18a has the same shape and configuration as the spacer 18 shown in Figures 4(A) and 4(B). As shown in Figure 7(B), the second spacer 18b has an engagement portion 82 and an insertion hole 84. The insertion hole 84 can receive the first screw 40 and is arranged coaxially with the insertion hole 74 of the first spacer 18a.

The engaging portions 82 are formed as a pair, protruding from the end face of the second spacer 18b. The engaging portions 82 are inserted into and engaged with the engaged portion 80 shown in FIG. 4B. The engaging portions 82 have ribs 82a on their outer peripheral surface. The ribs 82a protrude radially outward from the outer peripheral surface, and when inserted into the engaged portion 80, they are pressed against the inner peripheral surface of the engaged portion 80. This connects the second spacer 18b to the first spacer 18a. Note that the concave-convex relationship between the engaged portion 80 and the engaging portions 82 may be reversed, with the engaged portion 80 being formed in a convex shape and the engaging portions 82 being formed in a concave shape.

Returning to FIG. 6, the worker connects the second spacer 18b to the first spacer 18a according to the distance between the base material 16 and the existing frame 112. This allows the axial length of the spacer 118 to be adjusted. Note that multiple second spacers 18b may be connected to the first spacer 18a, and another second spacer 18b may be connected to the second spacer 18b. Even for existing frames 12 of different types in which the base plate portion 50 and the seating portion 53 of the existing frames 12 are at different heights, the axial length of the spacer 118 can be adjusted to attach the base material 16. In this way, by adjusting the axial length of the spacer 118, the number of types of existing frames 12 to which the base material 16 can be attached can be increased.

The length of the extension piece 70 in the extension direction is set according to the case where the first spacer 18a and the second spacer 18b are connected. When the first spacer 18a and the second spacer 18b are connected, it is not necessary to break the tip of the extension piece 70, but when only the first spacer 18a is attached, the tip of the extension piece 70 can be attached by breaking it along the slit 70a.

The extension piece 70 is provided so that it can be broken at a position that matches the length of the first spacer 18a, and can be broken off to the length of the second spacer 18b. By adjusting the distance between the existing frame 112 and the base material 16 using the extension piece 70 and the spacer 118, the base portion 62 can be attached parallel to the projection direction, stabilizing the installation state of the base material 16. In addition, since it is no longer necessary to fix the base material 16 and the existing frame 12 at the outdoor side, the installation work can be made easier. Multiple slits 70a may be provided in the extension piece 70.

Note that the embodiments are merely illustrative, and various modifications are possible in the combination of each component, and it will be understood by those skilled in the art that such modifications are also within the scope of this disclosure. Therefore, the descriptions and drawings in this specification should be treated as illustrative rather than restrictive.

For example, in the embodiment, an intervening member 20 is provided between the new frame 10 and the base material 16, but this is not limited to the embodiment, and the intervening member 20 may be omitted. In other words, the new frame 10 may be fixed directly to the base material 16.

The remodeled sash 1 shown in the embodiment can be used for a variety of applications, such as sliding windows, windows with shutters, windows with storm shutters, vertical sliding windows, bathroom windows, etc.

1 Renovated sash, 4 Opening, 10 New frame, 12 Existing frame, 14 New shoji screen, 16 Base material, 18 Spacer, 20 Intervening member, 24 Frame member, 28 Body, 32 Trim material, 34 Airtight tape, 36 Cover material, 40 First screw, 55 Hole, 62 Base, 64 Recess, 66 Long hole, 68 Outer wall, 70 Extension piece, 72 Main body, 74 Insertion hole, 18a First spacer, 18b Second spacer.

Claims (4)

A retrofit sash installed at an opening in a building,
A base material attached to an inner periphery side of an existing frame provided in the opening;
A new frame is fixed to the base material on an inner peripheral side of the base material;
and a screw for fixing the base material to the existing frame.
The base material is
A base portion for fixing the new frame;
A recess recessed from the base portion;
a long hole portion formed in the recess and into which the screw is inserted;
A renovated sash, characterized in that the base material is set to a length that is at least 2/3 of the total length of one side of the existing frame to which the base material is fixed. A spacer is further provided between the base material and the existing frame, through which the screw can be inserted.
2. The remodeled sash according to claim 1, wherein the spacer has an engagement portion for connecting another spacer in the axial direction of the screw. The base material has an extension piece extending toward the existing frame,
3. The remodeled sash according to claim 1, wherein the extension piece has a breakable slit at a tip side in the extension direction. A base material for attaching a new frame to an existing frame installed at an opening in a building,
A base portion for fixing the new frame;
A recess recessed from the base portion;
A long hole portion is formed in the recess and into which a screw for fixing to the existing frame can be inserted,
A base material characterized in that the length of one side of the existing frame to which the base material is fixed is set to be at least 2/3 of the total length.

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