JP7139123B2 - Refurbished sash and construction method for refurbished sash - Google Patents

Description

TECHNICAL FIELD The present invention relates to a refurbished sash for refurbishing an existing window provided in a building and a method for constructing the refurbished sash.

Conventionally, the cover construction method has been adopted as a method of refurbishing existing windows. In a refurbished sash refurbished by this cover construction method, a new frame is attached to an existing frame attached to an opening of a building so as to cover the inner peripheral side thereof (see Patent Document 1, for example).

JP 2016-94771 A

When the newly renovated sash is a double sliding window, as shown in FIG. 14, the impact when the shoji 20 is strongly closed in the direction of the arrow is applied to the vertical frame (existing vertical frame 310 and new vertical frame 320). As a result, the window frame is distorted, and the joints A and B are opened to form a gap. If a gap occurs in the joint of the window frame, not only does the design deteriorate, but there is also a risk that the performance of the sash, such as rainwater infiltration prevention, cannot be maintained.

Such a problem that a gap is generated in the joint portion is particularly likely to occur when the existing frame is old and weak against impact. However, since the existing frame of the refurbished sash is covered with the new frame, for example, even if a gap occurs in the joint portion A of the existing frame, it cannot be confirmed after the refurbishment.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a refurbished sash and a method for constructing a refurbished sash that can prevent gaps from occurring in the joints of the existing frame due to the impact when the shoji is closed.

(1) A modified sash according to the present invention comprises an existing frame remaining in an opening of a building (for example, an opening 2 described later) and a new frame attached so as to cover the inner circumference of the existing frame. A modified sash (for example, a modified sash 1 to be described later), wherein the existing frame includes an existing upper frame (for example, an existing upper frame 110 to be described later), an existing lower frame (for example, an existing lower frame 210 to be described later), and an existing vertical frame. It has a frame (for example, the existing vertical frames 310 and 410 described later), and each corner of the four circumferences of the existing frame extends over the adjacent existing upper frame and the existing vertical frame, and the adjacent existing lower frame. and the existing vertical frame are connected by connecting metal fittings (for example, connecting metal fittings 500 and 600 to be described later).

(2) In the refurbished sash described in (1), the connection fitting (for example, a connection fitting 600 described later) has an abutting portion (for example, a and a holding portion (for example, holding portion 602 to be described later) that engages so as to hold the outdoor end of the existing vertical frame.

(3) In the modified sash described in (1) or (2), the connecting fittings are attached to the inner peripheral surfaces of the four corners of the existing frame (for example, the inner peripheral surfaces 110a, 210a, 310a, and 410a described later). ).

(4) A method for constructing a refurbished sash according to the present invention comprises an existing frame that remains in an opening of a building (for example, an opening 2 described later) and a new frame that is attached so as to cover the inner circumference of the existing frame. A method for constructing a refurbished sash (for example, a refurbished sash 1 described later) comprising
An existing upper frame (for example, an existing upper frame 110 to be described later) and an existing lower frame (for example, an existing lower frame 210 to be described later) adjacent to each corner of the four circumferences of the existing frame, and an existing vertical frame (for example, an existing The vertical frames 310, 410) are connected by connecting fittings (for example, connecting fittings 500, 600, which will be described later), respectively, and the step of attaching the new frame to the existing frame.

According to the present invention, it is possible to provide a refurbished sash and a refurbished sash construction method that can prevent a gap from being generated in a joint portion of an existing frame due to an impact when a shoji is closed.

It is the front view which looked at the refurbishment sash which concerns on this invention from the outdoor side. FIG. 2 is a longitudinal sectional view of the modified sash shown in FIG. 1; Figure 2 is a cross-sectional view of the retrofit sash shown in Figure 1; 3 is an enlarged longitudinal sectional view of the upper frame of the modified sash shown in FIG. 2; FIG. Fig. 3 is an enlarged longitudinal sectional view of the lower frame of the modified sash shown in Fig. 2; 4 is an enlarged longitudinal sectional view of one vertical frame of the modified sash shown in FIG. 3; FIG. 4 is an enlarged longitudinal sectional view of the other vertical frame of the modified sash shown in FIG. 3; FIG. It is a longitudinal cross-sectional view of an existing frame. It is a cross-sectional view of an existing frame. (a) is a front view of the connecting fitting, and (b) is a bottom view of the connecting fitting. (a) is a plan view of a connecting fitting according to another embodiment, (b) is its side view, and (c) is its perspective view. FIG. 4 is a vertical cross-sectional view showing an existing lower frame to which a connecting metal fitting is attached; FIG. 4 is a cross-sectional view showing the existing lower frame to which the connecting fittings are attached; It is an enlarged cross-sectional view which shows the principal part of one vertical frame of the conventional remodeling sash.

An embodiment of the present invention will be described in detail below with reference to the drawings.
FIG. 1 is a front view of a refurbished sash according to the present invention as seen from the outside. 2 is a longitudinal sectional view of the modified sash shown in FIG. 1, and FIG. 3 is a horizontal sectional view of the modified sash shown in FIG. 4 is an enlarged longitudinal sectional view of the upper frame of the remodeled sash shown in FIG. 2, and FIG. 5 is an enlarged longitudinal sectional view of the lower frame of the remodeled sash shown in FIG. 6 is an enlarged longitudinal sectional view of one vertical frame of the remodeled sash shown in FIG. 3, and FIG. 7 is an enlarged longitudinal sectional view of the other vertical frame of the remodeled sash shown in FIG.

As shown in FIGS. 1 to 3, a refurbished sash 1 according to the present invention is a sliding window type refurbished sash installed in an opening 2 of a building. The refurbished sash 1 comprises a window frame 10 formed in a rectangular shape by an upper frame 100 and a lower frame 200, a pair of left and right vertical frames 300 and 400, and two shoji screens 20 slidably housed in the window frame 10. , and one screen door 30 arranged on the outdoor side of the shoji 20 and slidably housed in the window frame 10.例文帳に追加A frame member 3 is provided around the inner peripheral surface of the opening 2 of the building. The window frame 10 shown in this embodiment is an external type window frame that is attached so as to protrude from the opening 2 on the outdoor side.

In addition, in the frame member 3 of this embodiment, the upper frame 100 side is configured by the lintel of the existing window, and the lower frame 200 side is configured by the existing window sill. Further, the vertical frames 300 and 400 are configured by pillars arranged on the vertical sides of the existing windows.

Each shoji 20, as shown in FIGS. 4 and 5, includes two sheets of glass 21, 21 arranged on the outdoor side and the indoor side, and a spacer 22 sandwiched between the two sheets of glass 21, 21. It is made of double-glazed glass and has excellent heat insulation.

As shown in FIGS. 2 and 4, the upper frame 100 includes an existing upper frame 110, a new upper frame 120, and an upper frame base member 130. As shown in FIGS.

The existing upper frame 110 is attached to the upper part of the opening 2 of the building, and is attached to guide rails 111a and 111b for the existing shoji, which are erected downward, and the ends on the outdoor side of the guide rails 111a and 111b. , and downwardly extending exterior sidewalls 112 . The indoor side of the existing upper frame 110 is fixed to the frame member 3 .

The new upper frame 120 is attached to the inner peripheral side of the existing upper frame 110 with the upper frame base member 130 interposed therebetween. As shown in FIG. 4, the newly installed upper frame 120 has guide rails 121a and 121b for the two shoji sliding doors 20 and 20 which are erected downward, and a guide rail 121c for the screen door 30. . The upper end of the shoji 20 is engaged with the guide rails 121a and 121b. The upper end of the screen door 30 is engaged with the guide rail 121c.

The newly installed upper frame 120 has an outdoor side wall portion 122 extending upward at the end on the outdoor side. The outdoor side wall portion 122 extends substantially parallel to the outdoor side wall portion 112 of the existing upper frame 110 and is arranged to cover the outdoor side of the outdoor side wall portion 112 . The newly installed upper frame 120 is fixed to the upper frame base member 130 with mounting screws 123 a and 123 b via a spacer member 140 between itself and the upper frame base member 130 .

The upper frame base member 130 is arranged on the inner peripheral side of the existing upper frame 110 and is interposed between the existing upper frame 110 and the new upper frame 120 . The upper frame base member 130 is made of a metal plate-shaped member formed in a length sufficiently shorter than the length of the existing upper frame 110, and is provided on the back surface of the upper frame base member 130 by an attachment member 132. It is attached using the guide rails 111 a and 111 b of the existing upper frame 110 . A plurality of upper frame base members 130 are attached to the existing upper frame 110 at intervals in the longitudinal direction. Thereby, each upper frame base member 130 forms a substantially flat mounting surface for the new upper frame 120 on the inner peripheral side (lower side) of the existing upper frame 110 . The newly installed upper frame 120 is attached to the surface (lower surface) of the upper frame base material 130 .

As shown in FIGS. 2 and 5, the lower frame 200 includes an existing lower frame 210, a newly installed lower frame 220, and a lower frame base material 230. As shown in FIGS.

The existing lower frame 210 is attached to the lower side of the opening 2 of the building. and an outdoor side wall portion 212 extending in the vertical direction. The indoor side of the existing lower frame 210 is fixed to the frame member 3 .

The newly installed lower frame 220 is attached to the inner peripheral side of the existing lower frame 210 with the lower frame base material 230 interposed therebetween. The newly installed lower frame 220 has guide rails 221a and 221b for the two sliding shojis 20 and 20 and a guide rail 221c for the screen door 30 which are erected upward. The lower end of the shoji 20 is engaged with the guide rails 221a and 221b. A lower end portion of the screen door 30 is engaged with the guide rail 221c.

The newly installed lower frame 220 has an outdoor side wall portion 222 extending downward at the end on the outdoor side. The outdoor side wall portion 222 extends substantially parallel to the outdoor side wall portion 212 of the existing lower frame 210 and is arranged so as to cover the outdoor side of the outdoor side wall portion 212 . The newly installed lower frame 220 is fixed to the lower frame base material 230 with mounting screws 223 .

The lower frame base material 230 is arranged on the inner peripheral side of the existing lower frame 210 and is interposed between the existing lower frame 210 and the newly installed lower frame 220 . The lower frame base material 230 is made of a metal plate member extending along the length direction of the lower frame 200 in order to receive the load of the two sashes 20 , 20 . The outdoor side of the lower frame base material 230 is placed on the outdoor side guide rail 211a of the existing lower frame 210, and the indoor side is attached to the indoor side guide rail 211b of the existing lower frame 210 by means of a bracket 231. . Thereby, the lower frame base material 230 forms a substantially flat mounting surface for the new lower frame 220 on the inner peripheral side (upper side) of the existing lower frame 210 . The newly installed lower frame 220 is attached to the surface (upper surface) of the lower frame base member 230 .

As shown in FIGS. 3, 6, and 7, the left and right vertical frames 300, 400 include existing vertical frames 310, 410, new vertical frames 320, 420, and vertical frame base members 330, 430. Configured.

The existing vertical frames 310 and 410 are attached to the left and right vertical sides of the opening 2 of the building, respectively. As shown in FIGS. 6 and 7, the existing vertical frames 310 and 410 have a plurality of fins 311a, 311b, 411a, 411b and 411c projecting inward. The indoor sides of the existing vertical frames 310 and 410 are fixed to the frame member 3 .

The new vertical frames 320, 420 are attached to the inner peripheral sides of the existing vertical frames 310, 410 with vertical frame base members 330, 430 interposed therebetween. The newly installed vertical frames 320 and 420 have outdoor side wall portions 321 and 421 extending outward on the left and right at the ends on the outdoor side. The outdoor side walls 321 and 421 are arranged so as to cover the outdoor sides of the existing vertical frames 310 and 410 . The new vertical frames 320, 420 are fixed to the vertical frame base members 330, 430 via the spacer members 340, 440 by mounting screws 322a, 322b, 422a, 422b.

The vertical frame base members 330, 430 are arranged on the inner peripheral side of the existing vertical frames 310, 410 and interposed between the existing vertical frames 310, 410 and the new vertical frames 320, 420. The vertical frame base members 330 and 430 are made of metal plate-like members having a length sufficiently shorter than the length of the newly installed vertical frames 320 and 420, respectively. A plurality of vertical frame base members 330 and 430 are attached to the inner peripheral side of the existing vertical frames 310 and 410 at intervals in the longitudinal direction of the existing vertical frames 310 and 410 .

The outdoor sides of the vertical frame base members 330 and 430 are attached by mounting screws 332 and 432 using the fins 311a and 411a provided on the existing vertical frames 310 and 410 on the outdoor side. On the other hand, the indoor sides of the vertical frame base members 330 and 430 are fixed to the inner peripheral surfaces of the existing vertical frames 310 and 410 by brackets 333 and 433 . As a result, the vertical frame base members 330 and 430 form substantially flat mounting surfaces for the new vertical frames 320 and 420 on the inner peripheral side of the existing vertical frames 310 and 410 . The new vertical frames 320,420 are attached to the surface of the vertical frame base members 330,430.

The window frame 10 having the above configuration is framed in a rectangular shape by an upper frame 100, a lower frame 200 and left and right vertical frames 300, 400. As shown in FIG. As a result, the new frame (new upper frame 120, new lower frame 220 and new vertical frames 320, 420) of the refurbished sash 1 is connected to the existing frame (existing upper frame 110 , the existing lower frame 210 and the existing vertical frames 310, 410).

In this refurbished sash 1 , connecting metal fittings 500 are attached to the four corners of the existing frame of the window frame 10 . 8 and 9 show the existing frames (existing upper frame 110, existing lower frame 210 and existing vertical frames 310, 410). FIG. 8 is a vertical cross-sectional view of the existing frame, and FIG. 9 is a horizontal cross-sectional view of the existing frame. Note that FIG. 9 shows the existing lower frame 210 side, and illustration of the lower frame base material 230 is omitted.
As shown in FIGS. 8 and 9, the corners of the existing upper frame 110 and the existing vertical frames 310 and 410 and the corners of the existing lower frame 210 and the existing vertical frames 310 and 410 are provided with connecting fittings 500, respectively. is attached.

All of the four connecting fittings 500 of this embodiment are attached to the inner peripheral surface of the existing frame. That is, the connecting fittings 500 at the corners of the existing upper frame 110 and the existing vertical frames 310, 410 extend over the inner peripheral surface 110a of the existing upper frame 110 and the inner peripheral surfaces 310a, 410a of the existing vertical frames 310, 410. It is attached. In addition, the connecting fittings 500 at the corners of the existing lower frame 210 and the existing vertical frames 310, 410 extend over the inner peripheral surface 210a of the existing lower frame 210 and the inner peripheral surfaces 310a, 410a of the existing vertical frames 310, 410. installed. Therefore, the connecting fitting 500 can be easily attached to the existing frame from the indoor side.

10A and 10B show a front view of the connecting fitting 500 and FIG. 10B showing a bottom view of the connecting fitting 500. FIG. The connecting fitting 500 is made of a substantially L-shaped strip member having a bent portion 501 in the middle. Abutting portions 502, 502 are provided integrally on both end sides of the bent portion 501, respectively.

The two contact portions 502 , 502 cross each other at an angle of approximately 45° with respect to the bent portion 501 . Therefore, the two contact portions 502, 502 are arranged to form an angle of approximately 90°. The contact portions 502, 502 are portions to be screwed in contact with the inner peripheral surfaces 110a, 210a, 310a, 410a of the existing frames, and are formed with screw holes 503, 503, respectively.

The connecting fitting 500 extends over the inner peripheral surface 110 a of the existing upper frame 110 and the inner peripheral surfaces 310 a and 410 a of the existing vertical frames 310 and 410 , and the inner peripheral surface 210 a of the existing lower frame 210 and the existing vertical frames 310 and 410 . After the abutting portions 502, 502 are brought into contact with the inner peripheral surfaces 310a, 410a, respectively, the mounting screws 504, 504 are screwed into the respective screw holes 503, 503, thereby fixing to the existing frame. As a result, the four corners of the existing frame are reinforced by the connecting fittings 500, and the strength of the rectangular framework shape of the existing frame is improved. Therefore, when the existing frame is subjected to an impact when the shoji 20 is closed after refurbishment, it is possible to prevent the occurrence of a gap in the joint portion.

Each connecting fitting 500 is arranged near the outdoor side of the existing frame. Specifically, each connecting fitting 500 is arranged on the outdoor side of the existing upper frame 110 and existing lower frame 210 with respect to the outdoor guide rails 111a and 211a. As in this embodiment, the existing frame of the external type is attached to the opening 2 so as to protrude on the outdoor side of the building, so the sliding direction (horizontal direction) of the sliding shoji 20 on the outdoor side There is no member (framework of the building, frame member, etc.) that supports the outside of the door, and the impact when the sliding door 20 is closed causes the outdoor side to be particularly easily distorted from side to side. However, according to this refurbished sash 1, each connecting fitting 500 is arranged at a position closer to the outdoor side, so that the distortion of the existing frame due to the impact when the shoji 20 is closed can be effectively suppressed.

FIG. 11 shows a coupling fitting 600 according to another embodiment. (a) is a plan view of the connecting metal fitting 600, (b) is a side view of the connecting metal fitting 600, and (c) is a perspective view of the connecting metal fitting 600. FIG. 12 is a longitudinal sectional view showing the existing lower frame 210 to which the connecting metal fittings 600 are attached, and FIG. 13 is a transverse sectional view showing the existing lower frame 210 to which the connecting metal fittings 600 are attached.
The connecting fitting 600 is configured by integrally including a contact portion 601 and a holding portion 602 . Note that the connecting metal fittings 600 having a bilaterally symmetrical structure with that of FIG.

The contact portion 601 is a portion to be screwed into contact with the existing upper frame 110 or the existing lower frame 210 , and is formed in the same strip shape as the contact portion 502 of the connecting fitting 500 . A screw hole 603 is formed in the contact portion 601 .

The holding part 602 engages so as to hold the outdoor end of the existing vertical frames 310 and 410 from the outdoor side while the contact part 601 is in contact with the existing upper frame 110 or the existing lower frame 210 . It is the part that causes The holding portions 602 are a pair of parallel grippers arranged so as to sandwich the outdoor end portions of the existing vertical frames 310 and 410 from both sides of the opening portion 2 in the horizontal direction (extending direction of the upper frame 100 and the lower frame 200). holding pieces 602a and 602b and a connecting piece 602c that connects the holding pieces 602a and 602b.

A pair of clamping pieces 602 a and 602 b are arranged to form an angle of approximately 90° with respect to the contact portion 601 . One holding piece 602 a is connected to the contact portion 601 and is bent at an angle of approximately 90° from the contact portion 601 . The connecting piece 602c is connected to the clamping piece 602a, and extends approximately 90 degrees from one side end of the clamping piece 602a (outdoor side end in the attached state) in the direction opposite to the contact portion 601. It is bent at an angle. The other holding piece 602b is connected to this connecting piece 602c, and is bent at an angle of approximately 90° from the end of the connecting piece 602c in the same direction and parallel to the holding piece 602a.

As shown in FIG. 13, the pair of clamping pieces 602a and 602b are spaced apart enough to clamp the outdoor end of the existing vertical frame 310 (410) from both sides. In this embodiment, since the fins 311a project from the inner peripheral surface 310a of the existing vertical frame 310 (410), the clamping pieces 602a and 602b are spaced apart so that the fins 311a can also be sandwiched inside. there is

The connecting fitting 600 is sandwiched between a pair of clamping pieces 602a and 602b by engaging the outdoor end portions of the existing vertical frames 310 and 410 so as to wrap them with the holding portion 602 from the outdoor side. , in the case of the existing upper frame 110 side, the contact portion 601 is brought into contact with the inner peripheral surface 110a of the existing upper frame 110, and in the case of the existing lower frame 210 side, The contact portion 601 is brought into contact. At this time, the gripping piece 602b of the gripping portion 602 is brought into contact with the outer peripheral surface 310b (410b) of the existing vertical frame 310 (410), as shown in FIG. After that, the connecting fitting 600 is fixed to the existing frame by screwing the mounting screw 604 into the screw hole 603 of the contact portion 601 .

In this connection fitting 600, when the existing vertical frames 310, 410 are subjected to impact when the shoji 20 is closed after renovation, the holding part 602 functions to prevent the existing vertical frames 310, 410 from being distorted. Therefore, the four corners of the existing frame are reinforced, and the strength of the rectangular frame shape of the existing frame is improved, thereby preventing the occurrence of gaps in the joint portion. Moreover, since this connecting fitting 600 can be attached with only one attachment screw 604, the attachment work is simplified. Furthermore, since the connecting fittings 600 are also attached to the ends of the existing vertical frames 310 and 410 on the outdoor side, it is possible to effectively suppress the distortion of the existing frames due to the impact when the shoji 20 is closed.

When constructing the refurbished sash 1, first, the existing upper frame 110, the existing upper frame 110 and the existing lower frame 210 adjacent to the four corners of the existing frame, and the existing vertical frames 310 and 410, respectively. They are connected using the connecting fittings 500 or 600, and then the new frame is attached to the existing frame. As a result, it is possible to easily construct the refurbished sash 1 capable of preventing a gap from being generated in the joint part of the existing frame due to the impact when the shoji 20 is closed.

In the above embodiment, the connecting fittings 500, 600 are all screwed to the inner peripheral surfaces 110a, 210a, 310a, 410a of the existing frames, but the outer peripheral surfaces 110b, 210b, 310b, 410b of the existing frames are may be screwed to the

1 modified sash 2 opening 110 existing upper frame (existing frame)
210 existing lower frame (existing frame)
310, 410 Existing vertical frame (existing frame)
500, 600 connecting fitting 601 abutting portion 602 holding portion 110a, 210a, 310a, 410a inner peripheral surface of existing frame

Claims (5)

An existing frame remaining in an opening of a building and a new frame attached so as to cover the inner peripheral side of the existing frame, wherein the new frame includes a base material arranged on the inner peripheral side of the existing frame. A modified sash attached to the existing frame through
The existing frame has an existing upper frame, an existing lower frame and an existing vertical frame,
Each corner of the four circumferences of the existing frame spans the adjacent existing upper frame and the existing vertical frame, and spans the adjacent existing lower frame and the existing vertical frame, respectively, separately from the base material It is connected by a connecting fitting made of a member,
The width of the connecting fitting in the indoor/outdoor direction is smaller than the width of the existing frame in the indoor/outdoor direction,
The connecting fitting includes an abutting portion that is screwed to the existing upper frame or the existing lower frame, a holding portion that engages so as to hold the outdoor end of the existing vertical frame, with refurbished sash. An existing frame remaining in an opening of a building and a new frame attached so as to cover the inner peripheral side of the existing frame, wherein the new frame includes a base material arranged on the inner peripheral side of the existing frame. A modified sash attached to the existing frame through
The existing frame has an existing upper frame, an existing lower frame and an existing vertical frame,
Each corner of the four circumferences of the existing frame spans the adjacent existing upper frame and the existing vertical frame, and spans the adjacent existing lower frame and the existing vertical frame, respectively, separately from the base material It is connected by a connecting fitting made of a member,
The width of the connecting fitting in the indoor/outdoor direction is smaller than the width of the existing frame in the indoor/outdoor direction,
The refurbished sash, wherein the connecting fitting is arranged on the outdoor side of the outdoor-side guide rail for the existing shoji. The connecting fitting includes an abutting portion that is screwed to the existing upper frame or the existing lower frame, a holding portion that engages so as to hold the outdoor end of the existing vertical frame, 3. The retrofit sash of claim 2 , comprising: The modified sash according to any one of claims 1 to 3 , wherein the connecting fittings are fixed to the inner peripheral surface of each of the four corners of the existing frame. An existing frame remaining in an opening of a building and a new frame attached so as to cover the inner peripheral side of the existing frame, wherein the new frame includes a base material arranged on the inner peripheral side of the existing frame. A construction method for a modified sash attached to the existing frame via
The new frame is attached to the existing frame via a base member arranged on the inner peripheral side of the existing frame,
The existing upper frame and the existing lower frame adjacent to each corner of the four circumferences of the existing frame, and the existing vertical frame are each made of a member different from the base material and have a width in the indoor/outdoor direction of the existing frame. A step of connecting with a connecting fitting smaller than the indoor-outdoor width of the
and attaching the new frame to the existing frame via the base material ,
The method of constructing a refurbished sash , wherein the step of connecting with the connecting metal fittings includes arranging the connecting metal fittings on the outdoor side of the outdoor-side guide rail for the existing shoji .

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