JP7062470B2 - Refurbished sash - Google Patents

Description

The present invention relates to a refurbished sash that remodels an existing window provided in a building into a new window.

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

It is also known that the refurbished sash has a new frame attached to the inner peripheral side of the existing frame via a base material. The base material is attached so as to cover the inner peripheral side of the existing frame in the indoor and outdoor directions, and the surface thereof is used as the attachment surface of the new frame (see, for example, Patent Document 2).

Japanese Unexamined Patent Publication No. 2016-94771 Jikkai Sho 63-146085 Gazette

In a refurbished sash having a base material, especially when rainwater infiltrates into the lower frame from the outdoor side, the rainwater may infiltrate the indoor side along the upper surface of the base material.

Therefore, an object of the present invention is to provide a refurbished sash in which even if rainwater infiltrates into the lower frame from the outdoor side, the rainwater does not infiltrate into the indoor side along the upper surface of the base material.

(1) The refurbished sash according to the present invention includes an existing lower frame (for example, the existing lower frame 210 described later) remaining in the opening of the building (for example, the opening 2 described later) and the inner peripheral side of the existing lower frame. A base material (for example, a new lower frame 220 described later) that is attached so as to cover the existing lower frame and a base material that is provided between the existing lower frame and the new lower frame and forms a mounting surface of the new lower frame. For example, a refurbished sash (for example, a refurbished sash 1 described later) comprising a lower frame base material 230) described later, wherein the base material has an outdoor side upper surface portion (for example, an outdoor side upper surface portion 231A described later). The indoor side upper surface portion (for example, the outdoor side upper surface portion 231B described later) provided on the upper frame (for example, the upper frame 100 described later) side of the outdoor side upper surface portion, the outdoor side upper surface portion, and the indoor side upper surface portion. It has a connecting portion (for example, a connecting portion 234 described later) that connects the portions.

(2) In the refurbished sash according to (1), it is preferable that the connecting portion is an inclined surface that inclines downward from the indoor side upper surface portion toward the outdoor side upper surface portion.

(3) In the refurbished sash according to (1) or (2), the new lower frame is made of the base material by a mounting screw (for example, a mounting screw 225 described later) penetrating the new lower frame and the base material. It is preferable that the mounting screw is fixed to the base material and penetrates the upper surface portion on the outdoor side of the base material.

(4) In the refurbished sash according to any one of (1) to (3), the newly installed lower frame abuts on the indoor side end portion (for example, the outdoor side end portion 231Ba described later) of the indoor side upper surface portion. Is preferable.

According to the present invention, it is possible to provide a refurbished sash in which even if rainwater infiltrates into the lower frame from the outdoor side, the rainwater does not infiltrate into the indoor side along the upper surface of the base material.

It is a front view of the refurbished sash which concerns on one Embodiment of this invention. It is a vertical sectional view of the refurbished sash shown in FIG. It is sectional drawing of the refurbished sash shown in FIG. FIG. 3 is an enlarged vertical sectional view showing a main part on the upper side of the refurbished sash shown in FIG. 2. FIG. 3 is an enlarged vertical sectional view showing a main part of the lower side of the refurbished sash shown in FIG. 2. FIG. 2 is an enlarged cross-sectional view showing a main part on the left side of the refurbished sash shown in FIG. 2. FIG. 3 is an enlarged cross-sectional view showing a main part on the right side of the refurbished sash shown in FIG. 2. It is a perspective view which shows the appearance that the base material was attached to the inner peripheral side of the existing frame of a refurbished sash. It is a perspective view of the upper frame base material. It is a partial perspective view of the upper frame base material seen from the back surface side. It is a front view which looked at the mounting member from the indoor side. It is a vertical sectional view of a mounting member. It is a perspective view of the lower frame base material. It is a figure explaining the state of attaching the new lower frame to the existing lower frame. It is sectional drawing which looked at the height adjustment mechanism from the front. It is sectional drawing which looked at the height adjustment mechanism from the side. It is a perspective view which looked at the back side of the vertical frame base material from the outdoor side.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.
1 is a front view of a refurbished sash according to an embodiment of the present invention, FIG. 2 is a vertical cross-sectional view of the refurbished sash shown in FIG. 1, and FIG. 3 is a cross-sectional view of the refurbished sash shown in FIG. It is a figure. FIG. 4 is an enlarged vertical cross-sectional view showing an enlarged upper part of the refurbished sash shown in FIG. 2, and FIG. 5 is an enlarged vertical cross-sectional view showing a lower main part of the refurbished sash shown in FIG. FIG. 6 is an enlarged cross-sectional view showing the main part on the left side of the refurbished sash shown in FIG. 2, and FIG. 7 is an enlarged cross-sectional view showing the main part on the right side of the refurbished sash shown in FIG. It is a top view. Further, FIG. 8 is a perspective view showing a state in which the base material is attached to the inner peripheral side of the existing frame of the refurbished sash.

As shown in FIG. 1, the refurbished sash 1 according to the present invention has an upper frame 100, a lower frame 200, a window frame 10 rectangularly framed by a pair of left and right vertical frames 300, and 400, and a window frame 10 opened and closed. A shoji screen 20 that can be housed in a shoji screen and a screen door 30 that can be slidably housed in a window frame 10 on the indoor side of the shoji screen 20 are provided. The opening 2 is provided with a frame member 3 over four circumferences so as to cover the inner peripheral side. FIG. 1 shows a view of the refurbished sash 1 from the outdoor side.

As shown in FIGS. 2 and 3, the shoji 20 shown in the present embodiment is sandwiched between two glasses 22 and 22 on the indoor side and the outdoor side and these glasses 22 and 22 in a stile 21 spanning four circumferences. It is a sliding type shoji made of a plurality of glasses including the spacer 23, and has excellent heat insulating properties. The shoji 20 is configured to rotate by operating a lever 24 attached to the indoor side, open toward the outdoor side, and close toward the indoor side.

The screen door 30 is housed in a groove 11 provided on four circumferences of the window frame 10. As shown in FIG. 3, the screen door 30 has a net unit 31 that can be folded in the left-right direction, and the screen unit 31 is housed in one of the vertical frames 300 in a folded state. When the vertical frame portion 32 attached to the end of the net portion 31 is slid toward the vertical frame 400 side, the screen door 30 is extended to the indoor side of the shoji 20 and the vertical frame portion 32 is moved to the vertical frame 300 side. It is configured to be folded when slid toward it. FIG. 3 shows a state in which the screen door 30 is folded toward the vertical frame 300 side, and a state in which the screen door 30 is expanded is shown by a dashed line.

Next, the window frame 10 will be described.
<A. Upper frame>
First, the upper frame 100 will be described. 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 material 130.

a1. Existing upper frame The existing upper frame 110 is made of a metal frame and is attached to the outdoor side of the upper side of the opening 2 of the building. The existing upper frame 110 has an outdoor side wall portion 111 extending downward at an end portion on the outdoor side. As shown in FIG. 4, the outdoor side wall portion 111 is formed when the existing side wall portion 111a (indicated by a broken line in FIG. 4) originally provided in the existing upper frame 110 before being remodeled into the refurbished sash 1 is cut. It is a root portion of the existing side wall portion 111a left uncut in. The lower end of the outdoor side wall 111 is located above the position of the inner peripheral surface 3a of the frame member 3.

Further, the existing upper frame 110 integrally has an angle portion 112 extending toward the indoor side at the end portion on the indoor side. The angle portion 112 is fixed to the outdoor end of the inner peripheral surface 3a of the frame member 3.

The existing upper frame 110 further has a protruding piece 113. The projecting piece 113 projects from the outdoor end of the angle portion 112 toward the inside of the opening 2 (lower side of FIGS. 2 and 4). The protruding piece 113 is an existing protrusion left uncut when the existing protruding piece 113a (indicated by a broken line in FIG. 4) originally provided in the existing upper frame 110 before being remodeled into the refurbished sash 1 is cut. It is a protruding piece remaining portion composed of a root portion of the piece 113a. The projecting piece 113 projects further toward the inside of the opening 2 than the inner peripheral surface 3a of the frame member 3. In the present embodiment, the projecting piece 113 projects inward (downward) by about 5 mm from the inner peripheral surface 3a of the frame member 3.

a2. New upper frame The new upper frame 120 is attached to the inner peripheral side of the existing upper frame 110 with the upper frame base material 130 sandwiched between them. The new upper frame 120 is mainly made of a metal frame body, and has an overhanging portion 121 on the outdoor side, which is further extended to the outdoor side than the shoji 20. The overhanging portion 121 has an outdoor side wall portion 122 that is slightly downwardly inclined toward the outdoor side and rises upward at the tip portion thereof. The outdoor side wall portion 122 extends substantially in parallel with the outdoor side wall portion 111 of the existing upper frame 110, and is arranged so as to cover the entire outdoor side wall portion 111 from the outdoor side.

The outdoor side wall portion 122 has a plurality of ribs 122a to 122c protruding toward the indoor side. The rib 122a is arranged at the upper end of the outdoor side wall portion 122. The ribs 122b and 122c are arranged below the ribs 122a and project so as to abut on the outdoor side wall portion 132 of the upper frame base material 130 described later. These ribs 122a to 122c extend in parallel over the entire length of the new upper frame 120.

The new upper frame 120 has a resin angle member 123 extending toward the indoor side at an end portion on the indoor side. The angle member 123 is integrally formed with the groove portion 11 in which the screen door 30 is housed, and is arranged at a distance from the inner peripheral surface 3a of the frame member 3. A resin angle cover 124 is attached between the angle member 123 and the inner peripheral surface 3a of the frame member 3. The boundary between the angle cover 124 and the inner peripheral surface 3a of the frame member 3 is shielded by the resin L-shaped parting material 125. The parting material 125 is fixed to the inner peripheral surface 3a of the frame member 3 by a mounting screw 125a.

The new upper frame 120 is fixed to the upper frame base material 130 via a spacer member 140 by a plurality of mounting screws 126a and 126b penetrating the upper frame base material 130. The mounting screws 126a and 126b penetrate the upper frame base material 130 from the newly installed upper frame 120.

a3. Upper frame base material The upper frame base material 130 is arranged between the existing upper frame 110 and the new upper frame 120. As shown in FIG. 8, only one upper frame base material 130 is attached to the inner peripheral side of the existing upper frame 110, and extends over substantially the entire length of the existing upper frame 110 in the length direction. The upper frame base material 130 is formed to be the same as the total length in the length direction of the new upper frame 120 or longer than the total length in the length direction of the new upper frame 120.

Details of the upper frame base material 130 are shown in FIG. FIG. 9 is a perspective view of the upper frame base material 130. The upper frame base material 130 is made of metal, and has a base material main body 131, an outdoor side wall portion 132, and a plurality of projecting portions 133a to 133d integrally.

The base material main body 131 is composed of a long plate-shaped member extending along the length direction of the existing upper frame 110, and extends the inner peripheral side of the existing upper frame 110 over substantially the entire length in the length direction and in the indoor / outdoor direction. By covering over, a substantially flat mounting surface for the new upper frame 120 is formed. The indoor end of the base material body 131 is arranged on the inner peripheral surface 3a of the frame member 3 so as to cover the angle portion 112 of the existing upper frame 110.

The outdoor side wall portion 132 extends upward from the outdoor side end portion of the base material main body 131. The outdoor side wall portion 132 extends substantially in parallel with the outdoor side wall portion 111 of the existing upper frame 110, and the existing upper frame 110 is located between the outdoor side wall portion 122 of the new upper frame 120 and the outdoor side wall portion 111 of the existing upper frame 110. It is arranged so as to cover substantially the lower half of the outdoor side wall portion 111. The outdoor side wall portion 132 is arranged so as to be in contact with the ribs 122b and 122c provided on the outdoor side wall portion 122 of the new upper frame 120, but the upper end portion 132a of the outdoor side wall portion 132 is arranged below the rib 122a. Has been done.

The protruding portions 133a to 133d are projected from the back surface of the base material main body 131 (the surface on the existing upper frame 110 side) so as to extend along the length direction of the base material main body 131. As shown in FIG. 4, the two protrusions 133a and 133b on the indoor side of the protrusions 133a to 133d are arranged so as to face the inner peripheral surface 3a of the frame member 3. The indoor end of the base material body 131 is fixed to the angle portion 112 of the existing upper frame 110 by mounting screws 134 screwed between the protrusions 133a and 133b. At this time, the two protruding portions 133a and 133b can maintain a constant distance between the inner peripheral surface 3a of the frame member 3 and the base material main body 131.

The most indoor side protrusion 133a is arranged at the most indoor side end of the base material main body 131. The indoor side surface of the protrusion 133a forms the indoor side surface 130a of the upper frame base material 130. As shown in FIG. 4, the indoor side surface 130a is arranged on the same surface as the indoor side surface 120a excluding the angle cover 124 of the new upper frame 120. The angle cover 124 is attached so as to cover the indoor side surfaces 120a and 130a of the indoor side surface 130a of the upper frame base material 130 and the indoor side surface 120a of the new upper frame 120.

Further, the protruding portions 133a to 133d block the rainwater from between the outdoor side wall portion 111 of the existing upper frame 110 and the outdoor side wall portion 132 of the upper frame base material 130, and further block the rainwater. It also has a function to prevent intrusion into the inside. In particular, the protrusion 133d on the most outdoor side functions as a first weir that first blocks rainwater entering from the outdoor side.

a4. Mounting structure of the upper frame base material As shown in FIG. 4, the outdoor side of the upper frame base material 130 is fixed to the outdoor side wall portion 111 of the existing upper frame 110 by the mounting member 40. The details of the mounting member 40 will be further described with reference to FIGS. 10 to 12. 10 is a partial perspective view of the upper frame base material 130 as viewed from the back surface side, FIG. 11 is a front view of the mounting member 40 as viewed from the indoor side, and FIG. 12 is a vertical sectional view of the mounting member 40. Is. In FIG. 10, the existing upper frame 110 is not shown in order to facilitate understanding of the configuration.

The mounting member 40 has a height including a base 41 mounted on the back surface of the base material main body 131, a mounting piece 42 mounted on the outdoor side wall portion 111 of the existing upper frame 110, and a countersunk screw rotatably held by the base 41. The adjusting screw 43 is provided. The mounting member 40 is provided one or more depending on the length of the upper frame base material 130.

The base portion 41 is made of a flat metal plate, and a pair of support plate portions 41a and 41a are erected on the surface (the surface on the existing upper frame 110 side). The support plate portions 41a and 41a are arranged in parallel along the indoor and outdoor directions, and are erected at predetermined intervals in the length direction of the upper frame base material 130. The distance between the pair of support plate portions 41a and 41a is set to be approximately the same as the length of the mounting piece 42 (the length along the length direction of the upper frame base material 130) described later.

As shown in FIG. 9, the base material main body 131 is formed with a plurality of elongated holes 136 for inserting screws extending in the indoor and outdoor directions. The elongated hole 136 is arranged on the outdoor side of the protrusion 133d on the most outdoor side. FIG. 9 shows an upper frame base material 130 to which two mounting members 40 are mounted, and two elongated holes 136 are provided for one set of mounting members 40. The base portion 41 is fixed to the base material main body 131 by a mounting screw 44 penetrating the elongated hole 136. Since the elongated hole 136 is long in the indoor / outdoor direction, the fixed position of the base 41 in the indoor / outdoor direction can be finely adjusted.

The mounting piece 42 is made of a metal plate extending substantially parallel to the base material main body 131. A pair of holding pieces 42a and 42a are erected on the upper surface of the mounting piece 42 (the surface on the side of the existing upper frame 110). The sandwiching pieces 42a and 42a extend along the length direction of the upper frame base material 130. As shown in FIG. 12, the sandwiching pieces 42a and 42a are accommodated so as to sandwich the outdoor side wall portion 111 from the lower side of the outdoor side wall portion 111 of the existing upper frame 110. The mounting piece 42 extends from below the outdoor side wall portion 111 sandwiched between the holding pieces 42a and 42a so as to project toward the indoor side, and is sandwiched between the pair of support plate portions 41a and 41a on the base 41. It is arranged like this.

A mounting screw 45 penetrating the mounting piece 42 is screwed from the lower side with the outdoor side wall portion 111 sandwiched between the pair of holding pieces 42a and 42a. Here, the distance between the holding pieces 42a and 42a is set to be slightly narrower than the sum of the thickness of the outdoor side wall portion 111 and the outer diameter of the threaded portion of the mounting screw 45. Therefore, the outdoor side wall portion 111 between the holding pieces 42a and 42a is sandwiched between one holding piece 42a (in this embodiment, the holding piece 42a on the outdoor side) and the mounting screw 45. As a result, the mounting piece 42 is fixed to the outdoor side wall portion 111.

As shown in FIG. 12, a double-sided tape 46 is interposed between the holding piece 42a on the outdoor side and the outdoor side wall portion 111, and the holding piece 42a and the outdoor side wall portion 111 are adhered to each other. The double-sided tape 46 limits the relative movement of the holding piece 42a and the outdoor side wall portion 111, and prevents the mounting piece 42 from sliding laterally in conjunction with the rotation of the mounting screw 45. This improves workability when fixing the mounting piece 42 to the outdoor side wall portion 111.

The height adjusting screw 43 fixes the mounting piece 42 to the base 41 so that the height can be adjusted. Specifically, a pair of holding claw portions 41b, 41b for holding the head portion 43a of the height adjusting screw 43 is provided on the surface of the base portion 41 between the pair of support plate portions 41a, 41a. The holding claws 41b and 41b rotatably hold the head portion 43a of the height adjusting screw 43. The height adjusting screw 43 is screwed to the mounting piece 42 on the indoor side of the pair of holding pieces 42a and 42a while the head portion 43a is rotatably held by the holding claws 41b and 41b. , The mounting piece 42 is fixed to the base 41. As a result, the outdoor end of the upper frame base material 130 is fixed to the existing upper frame 110.

An operation hole 41c having a diameter smaller than the outer diameter of the head portion 43a of the height adjusting screw 43 is formed between the holding claw portions 41b and 41b. The upper surface (the surface having the driver groove) of the head 43a of the height adjusting screw 43 faces the inside of the operation hole 41c. Further, as shown in FIGS. 9 to 11, the base material main body 131 of the upper frame base material 130 has a hole portion 137 larger than the operation hole 41c between the adjacent elongated holes 136. The operation hole 41c is arranged in the hole portion 137 of the base material main body 131. Therefore, the head 43a of the height adjusting screw 43 facing into the operation hole 41c can be rotated by a screwdriver or the like from the lower side of the base material main body 131 through the hole portion 137.

Since the mounting piece 42 screwed with the height adjusting screw 43 cannot rotate because it is sandwiched between the pair of support plate portions 41a and 41a, when the height adjusting screw 43 rotates, the mounting piece 42 becomes It moves vertically along the axial direction of the height adjusting screw 43 between the support plate portions 41a and 41a. As a result, the height of the upper frame base material 130 on the outdoor side can be adjusted, and the horizontality of the upper frame base material 130 can be easily finely adjusted.

Here, as shown in FIG. 4, the upper frame base material 130 has a predetermined space portion S1 between the base material main body 131, the inner peripheral surface 110a of the existing upper frame 110, and the inner peripheral surface 3a of the frame member 3. It has and is attached to the inner peripheral side of the existing upper frame 110. The space portion S1 is defined by two protrusions 133a and 133b of the upper frame base material 130 and a height-adjustable mounting member 40, and in the present embodiment, the base material of the upper frame base material 130. The distance between the main body 131 and the inner peripheral surface 3a of the frame member 3 is set to be the same as or slightly larger than the protruding height (about 5 mm) of the protruding piece 113 of the existing upper frame 110. As a result, the protruding piece 113 of the existing upper frame 110 is completely accommodated in the space portion S1 and does not interfere with the upper frame base material 130, so that the upper frame base material 130 can be easily placed on the inner peripheral side of the existing upper frame 110. It is possible to install it.

Further, in the upper frame base material 130 shown in the present embodiment, the two protrusions 133a and 133b arranged on the indoor side keep the distance between the inner peripheral surface 3a of the frame member 3 and the base material main body 131 constant. Since it can be held, even if the upper frame base material 130 is pushed by the new upper frame 120 and moves to the existing upper frame 110 side, the base material main body 131 is excessively close to the existing upper frame 110. This is avoided, and the space portion S1 in which the projecting piece 113 is housed can be secured.

When constructing the upper frame 100 of the refurbished sash 1, first, the existing side wall portion 111a protruding toward the inner peripheral side of the existing upper frame 110 and the existing protruding piece 113a are cut. At this time, since it is difficult to cut the existing protruding piece 113a flush with the inner peripheral surface 3a of the frame member 3, the existing protruding piece 113a protrudes inward of the opening 2 from the inner peripheral surface 3a of the frame member 3 and remains. Will be cut off. As a result, the protruding piece (remaining part of the protruding piece) 113 left uncut in the existing upper frame 110 is formed. Next, the upper frame base material 130 is attached to the inner peripheral side of the existing upper frame 110 so as to provide a space portion S1 between the existing upper frame 110 and the inner peripheral surface 3a of the frame member 3, and the protruding piece 113 is made into a space. It is housed in the part S1. As a result, even if the projecting piece 113 projecting from the inner peripheral surface 3a of the frame member 3 protrudes from the existing upper frame 110, the upper frame base material 130 can be easily attached to the inner peripheral side of the existing upper frame 110. can.

a5. Water-stopping structure of the upper frame As shown in FIG. 4, the two protrusions 133a and 133b on the indoor side of the upper frame base material 130 and the inner peripheral surface 3a of the frame member 3 (the surface of the angle portion 112 of the existing upper frame 110). A waterproof tape 150 is interposed between the two. The waterproof tape 150 covers the protruding piece 113 of the existing upper frame 110 and is attached over the vicinity of the parting material 125 of the new upper frame 120.

Further, the waterproof tape 151 is attached to the indoor side surface 120a of the new upper frame 120 and the indoor side surface 130a of the upper frame base material 130. The waterproof tape 151 extends from the indoor side surface 130a of the upper frame base material 130 to a portion to be attached to the inner peripheral surface 3a of the frame member 3 of the waterproof tape 150. In the present embodiment, the indoor side surface 130a of the upper frame base material 130 and the indoor side surface 120a of the new upper frame 120 are arranged on the same surface. As a result, the waterproof tape 151 can be attached in a plane, so that the attachment workability is good, the attachment state is also good, and the water stop function can be improved. In the present embodiment, the indoor side surface 140a of the spacer member 140 is also arranged on the same surface as the indoor side surfaces 120a and 130a, but the position of the indoor side surface 140a of the spacer member 140 is not particularly limited.

Further, as shown in FIGS. 4 and 10, a plurality of water blocking materials 160 to 162 made of foam rubber or the like are interposed between the existing upper frame 110 and the new upper frame 120. These water blocking materials 160 to 162 extend in a long length along the length direction of the new upper frame 120.

The water blocking material 160 is sandwiched between the outdoor side wall portion 111 of the existing upper frame 110 and the outdoor side wall portion 122 of the new upper frame 120, and the upper end portion 132a of the outdoor side wall portion 132 of the upper frame base material 130. Is in contact with. Further, the water blocking material 161 is sandwiched between the outdoor side wall portion 122 of the new upper frame 120 and the outdoor side wall portion 132 of the upper frame base material 130. Further, the water blocking material 162 is arranged on the indoor side of the elongated hole 136 and the hole portion 137 formed in the base material main body 131, and on the outdoor side of the mounting screw 126b. It is sandwiched between.

<B. Bottom frame>
Next, the lower frame 200 will be described. As shown in FIGS. 2 and 5, the lower frame 200 includes an existing lower frame 210, a new lower frame 220, and a lower frame base material 230.

b1. Existing lower frame The existing lower frame 210 is attached to the outdoor side of the lower side of the opening 2 of the building. The existing lower frame 210 has a vertical wall portion 211 that is erected from the prospective wall portion 210a toward the new lower frame portion 220 arranged above. The vertical wall portion 211 is continuously arranged along the length direction of the existing lower frame 210. The prospective wall portion 210a is slightly inclined downward toward the outdoor side, and the vertical wall portion 211 is arranged at the end portion of the prospective wall portion 210a on the outdoor side. The vertical wall portion 211 shown in the present embodiment is provided so as to project at the same height as the inner peripheral surface 3a of the frame member 3, but is not limited thereto.

The existing lower frame 210 has an overhanging portion 212 on the outdoor side of the standing wall portion 211, which projects so as to be slightly downwardly inclined from the lower part of the standing wall portion 211 toward the outdoor side. The overhanging portion 212 projects from the standing wall portion 211 toward the outdoor side at a position below the connection portion 210b between the standing wall portion 211 and the prospective wall portion 210a. The outdoor side end of the overhanging portion 212 has an outdoor side wall portion 213 extending downward. Further, the existing lower frame 210 integrally has an angle portion 214 extending toward the indoor side at the end portion on the indoor side. The angle portion 214 is fixed to the outdoor end of the inner peripheral surface 3a of the frame member 3.

b2. The new lower frame 220 is attached to the inner peripheral side of the existing lower frame 210 with the lower frame base material 230 sandwiched between them. The new lower frame 220 is mainly composed of a metal frame body, and has an outdoor side wall portion 221 extending downward at an end portion on the outdoor side. The outdoor side wall portion 221 extends substantially in parallel with the outdoor side wall portion 213 of the existing lower frame 210, and is arranged so as to cover the entire outdoor side wall portion 213.

The new lower frame 220 has a resin angle member 222 extending toward the indoor side at an end portion on the indoor side. The angle member 222 is formed integrally with the groove portion 11 in which the screen door 30 is housed, and is arranged at a distance from the inner peripheral surface 3a of the frame member 3. A resin angle cover 223 is attached between the angle member 222 and the inner peripheral surface 3a of the frame member 3. The boundary between the angle cover 223 and the inner peripheral surface 3a of the frame member 3 is shielded by a resin L-shaped parting material 224. The parting material 224 is fixed to the inner peripheral surface 3a of the frame member 3 by a mounting screw 224a.

The new lower frame 220 is fixed by a mounting screw 225 that penetrates the lower frame base material 230. The mounting screw 225 penetrates the lower frame base material 230, but does not penetrate the existing lower frame 210. The mounting screws 225 are arranged on the indoor side of the standing wall portion 211 of the existing lower frame 210.

b3. Lower frame base material The lower frame base material 230 is arranged between the existing lower frame 210 and the new lower frame 220. As shown in FIG. 8, a plurality of lower frame base materials 230 are provided at intervals along the length direction of the existing lower frame 210.

Details of the lower frame base material 230 are shown in FIG. FIG. 13 is a perspective view of the lower frame base material 230. The lower frame base material 230 is made of metal, and has a base material main body 231, an outdoor side wall portion 232, a protruding step portion 233, a connecting portion 234, and a plurality of protruding portions 235a to 235c integrally.

The base material main body 231 is made of a plate-shaped member that is sufficiently short with respect to the length of the existing lower frame 210 in the length direction, and is newly installed by covering the inner peripheral side of the existing lower frame 210 in the indoor and outdoor directions. It forms a substantially flat mounting surface for the lower frame 220. The indoor end of the base material main body 231 is arranged on the inner peripheral surface 3a of the frame member 3 so as to cover the angle portion 214 of the existing lower frame 210.

The outdoor side wall portion 232 extends downward from the outdoor side end portion of the base material main body 231. The outdoor side wall portion 232 extends substantially parallel to the outdoor side wall portion 213 of the existing lower frame 210, and the new lower frame 220 is located between the outdoor side wall portion 221 of the new lower frame 220 and the outdoor side wall portion 213 of the existing lower frame 210. It is arranged with the same length as the outdoor side wall portion 221.

The protruding step portion 233 is arranged at the connection portion between the base material main body 231 and the outdoor side wall portion 232, and is provided from the base material main body 231 so as to partially bend and project toward the outdoor side from the outdoor side wall portion 232. It is integrally formed over the outdoor side wall portion 232.

As shown in FIG. 5, the outdoor side wall portion 221 of the new lower frame 220 is in contact with the protruding step portion 233 from the outdoor side. Therefore, the outdoor side wall portion 221 of the newly installed lower frame 220 is located on the outdoor side by the protrusion of the protruding step portion 233 from the outdoor side wall portion 232 of the lower frame base material 230. As shown in FIG. 4, the protrusions of the protruding step portion 233 to the outdoor side include ribs 122b, 122c, wherein the outdoor side wall portion 122 of the new upper frame 120 is provided on the outdoor side wall portion 122 of the new upper frame 120. It corresponds to the portion that is arranged so as to project to the outdoor side due to the presence of the outdoor side wall portion 132 of the upper frame base material 130 and the holding piece 42a of the mounting piece 42 in the mounting member 40. Therefore, by bringing the outdoor side wall portion 221 of the new lower frame 220 into contact with the protruding step portion 233, the outdoor side wall portion 122 of the new upper frame 120 and the outdoor side wall portion 221 of the new lower frame 220 are aligned on the same surface. Can be done.

The outdoor side wall portion 221 of the new lower frame 220 is aligned with the first outdoor side wall portions 321a and 421a of the new vertical frames 320 and 420, which will be described later. As a result, the finding surface of the refurbished sash 1 (the surface of the outdoor side wall portions 122, 221, 321a, 421a) is aligned on the same surface over four circumferences, so that the refurbished sash 1 looks good from the outdoor side. There is.

The connecting portion 234 is a portion that connects the outdoor side upper surface portion 231A arranged on the outdoor side and the indoor side upper surface portion 231B arranged on the indoor side in the base material main body 231. It is provided at a position on the indoor side of the mounting screw 225 of 220 along the length direction of the base material main body 231.

The outdoor side upper surface portion 231A and the indoor side upper surface portion 231B constitute the upper surface of the lower frame base material 230. The height of the outdoor side upper surface portion 231A and the indoor side upper surface portion 231B are different from each other with the connecting portion 234 as a boundary toward the upper frame 100 side. That is, in the base material main body 231, the indoor side upper surface portion 231B is higher toward the upper frame 100 side than the outdoor side upper surface portion 231A with the connecting portion 234 as a boundary, and the lower frame base material 230. The upper surface has a stepped shape at the connecting portion 234. Therefore, even if rainwater infiltrates between the newly installed lower frame 220 and the lower frame base material 230 from the outdoor side, it does not infiltrate the indoor side of the connecting portion 234. Therefore, according to the lower frame base material 230, the infiltrated rainwater can be blocked in the outdoor side upper surface portion 231A of the base material main body 231 and the intrusion of the rainwater into the indoor side upper surface portion 231B can be prevented. ..

The connecting portion 234 of the present embodiment is composed of an inclined surface that is inclined downward from the indoor side upper surface portion 231B toward the outdoor side upper surface portion 231A. This has the effect that the new lower frame 220 can be easily attached to the existing lower frame 210.

That is, when the new frame is attached to the inner peripheral side of the existing frame, the new upper frame 120 is first inserted from the outdoor side into the inner peripheral side of the existing upper frame 110 and abutted against each other, and then as shown in FIG. The new lower frame 220 is attached by pulling it from the outdoor side to the inner peripheral side of the existing lower frame 210. At this time, the indoor side standing wall portion 228, the tapping hole 229, etc. protruding downward from the newly installed lower frame 220 abut on the upper surface of the lower frame base material 230 and move toward the indoor side while rubbing, so that the lower frame If there is a step on the upper surface of the base material 230, it becomes difficult to pull the new lower frame 220 into the indoor side. However, according to this refurbished sash 1, since the connecting portion 234 of the lower frame base material 230 is an inclined surface, even if the standing wall portion 228 or the tapping hole 229 of the new lower frame 220 comes into contact with each other, the connecting portion 234 While being guided by the slope, it can be easily pulled in toward the indoor side.

Further, as shown in FIG. 5, the mounting screw 225 of the newly installed lower frame 220 penetrates the outdoor side upper surface portion 231A of the lower frame base material 230. Therefore, even if rainwater enters the upper surface of the lower frame base material 230 through the mounting screws 225, it is blocked by the connecting portion 234 and does not enter the outdoor side upper surface portion 231B.

Further, as shown in FIGS. 5 and 14, the newly installed lower frame 220 after being drawn onto the lower frame base material 230 is in contact with the indoor side upper surface portion 231B of the lower frame base material 230. That is, the lower end of the tapping hole 229 of the new lower frame 220 is in contact with the outdoor side end portion 231Ba arranged on the most outdoor side of the indoor side upper surface portion 231B. This makes it more difficult for water to be drawn into the indoor side than the outdoor side upper surface portion 231B. Therefore, in combination with the rainwater blocking effect of the connecting portion 234, the rainwater that has entered the upper surface of the lower frame base material 230. Can be more effectively prevented from entering the indoor side.

The protrusions 235a to 235c project from the indoor side upper surface portion 231B on the back surface (the surface on the existing lower frame 210 side) of the base material main body 231 and extend in parallel along the length direction of the base material main body 231. .. The protruding heights of the protruding portions 235a to 235c are slightly lower than the difference in height between the outdoor side upper surface portion 231A and the indoor side upper surface portion 231B of the base material main body 231 with the connecting portion 234 as a boundary.

As shown in FIG. 5, the protruding portions 235a to 235c are arranged so as to face the inner peripheral surface 3a of the frame member 3. The base material main body 231 is fixed to the angle portion 214 of the existing lower frame 210 by mounting screws 236 between the protrusions 235b and 235c. At this time, the protruding portions 235a to 235c can maintain a constant distance between the inner peripheral surface 3a of the frame member 3 and the base material main body 231.

The most indoor side protrusion 235a is arranged at the indoor side end portion of the base material main body 231. The indoor side surface of the protrusion 235a forms the indoor side surface 230a of the lower frame base material 230. As shown in FIG. 5, the indoor side surface 230a is arranged on the same surface as the indoor side surface 220a of the new lower frame 220 except for the angle cover 223. The angle cover 223 is attached so as to cover the indoor side surfaces 220a and 230a over the indoor side surface 230a of the lower frame base material 230 and the indoor side surface 220a of the newly installed lower frame 220.

b4. Mounting structure of the lower frame base material As shown in FIGS. 2 and 5, the outdoor side of the lower frame base material 230 is placed on the overhanging portion 212 of the existing lower frame 210 via the height adjusting mechanism 50. ing. The details of the height adjusting mechanism 50 will be further described with reference to FIGS. 15 and 16. FIG. 15 is a cross-sectional view of the height adjusting mechanism 50 as viewed from the front, and FIG. 16 is a cross-sectional view of the height adjusting mechanism 50 as viewed from the side.

The height adjusting mechanism 50 includes a base 51 attached to the back surface of the base material main body 231, a height adjusting screw 52 composed of a countersunk screw rotatably held by the base 51, and a support screwed into the height adjusting screw 52. A leg portion 53 is provided.

The base portion 51 has an abutting portion 51a that abuts on the back surface of the base material main body 231 and a pair of side wall portions 51b and 51b that hang downward from both ends on the indoor and outdoor sides of the abutting portion 51a. .. The contact portion 51a and the side wall portions 51b, 51b extend along the length direction of the lower frame base material 230.

A height adjusting screw 52 is housed between the side wall portions 51b and 51b. Specifically, holding step portions 51c and 51c along the cross-sectional shape of the head portion 52a of the height adjusting screw 52 are formed on the inner surfaces of the side wall portions 51b and 51b, respectively. The head 52a of the height adjusting screw 52 is inserted between the abutting portion 51a and the pair of holding step portions 51c and 51c from the side of the base portion 51, whereby the abutting portion 51a and the holding step portion 51c, It is rotatably held between the 51c and the 51c.

As shown in FIG. 13, the base material main body 231 of the lower frame base material 230 is formed with two elongated holes 237 for inserting screws extending in the indoor and outdoor directions. As shown in FIG. 15, the base 51 is fixed to the base material main body 231 by two mounting screws 54 penetrating each of the elongated holes 237. Since the elongated hole 237 is long in the indoor / outdoor direction, the fixed position of the base 51 in the indoor / outdoor direction can be finely adjusted.

A through hole 51d having a diameter smaller than the outer diameter of the head 52a of the height adjusting screw 52 is formed in the abutting portion 51a. The upper surface (the surface having the driver groove) of the head 52a of the height adjusting screw 52 faces the inside of the through hole 51d. Further, as shown in FIGS. 13, 15, and 16, in the base material main body 231 of the lower frame base material 230, a long hole 238 formed in the same manner as the long hole 237 is provided between the adjacent long holes 237. Have. The through hole 51d is arranged so as to face the inside of the elongated hole 238.

The support leg portion 53 includes a screw portion 53a screwed into the height adjusting screw 52, and a pair of L-shaped leg portions 53b, 53b extending downward from the screwed portion 53a with the height adjusting screw 52 interposed therebetween. , Have. The legs 53b and 53b are placed on the overhanging portion 212 of the existing lower frame 210. The thickness of the support legs 53 in the indoor and outdoor directions is substantially the same as the distance between the pair of side wall portions 51b and 52b of the base portion 51. Therefore, as shown in FIG. 16, the support leg portion 53 in a state where the screwed portion 53a is screwed into the height adjusting screw 52 comes into surface contact with the pair of side wall portions 51b and 51b and is supported from indoor and outdoor directions. Will be done.

When the height is adjusted by the height adjusting mechanism 50, the head 52a of the height adjusting screw 52 facing into the through hole 51d is rotated by a screwdriver or the like through the elongated hole 238 from the upper side of the lower frame base material 230. .. Since the support leg portion 53 is sandwiched between the pair of side wall portions 51b and 51b and cannot rotate, when the head portion 52a of the height adjusting screw 52 is rotated, the support leg portion 53 is sandwiched between the side wall portions 51b and 51b. It moves vertically along the axial direction of the height adjusting screw 52 between 51b. As a result, the height of the lower frame base material 230 on the outdoor side is adjusted, so that the horizontality of the lower frame base material 230 can be easily finely adjusted.

At this time, the support leg portion 53 of the height adjusting mechanism 50 abuts on the overhanging portion 212 that inclines downward, but since it is supported by the pair of side wall portions 51b and 51b, there is no risk of inclining. Therefore, the height adjusting mechanism 50 can stably support the outdoor side of the lower frame base material 230 so that the height can be adjusted.

Further, since the pair of leg portions 53b and 53b of the support leg portions 53 are formed in an L shape and have a shape of projecting left and right along the length direction (left-right direction in FIG. 15) of the lower frame base material 230, they are already installed. A large contact area of the lower frame 210 with respect to the overhanging portion 212 can be secured. Therefore, the height adjusting mechanism 50 can stably receive the load applied to the lower frame base material 230.

b5. Water-stopping structure of the lower frame As shown in FIG. 5, between the protruding portions 235a to 235c of the lower frame base material 230 and the inner peripheral surface 3a of the frame member 3 (the surface of the angle portion 214 of the existing lower frame 210). , The waterproof tape 240 is interposed. The waterproof tape 240 is attached between the protrusions 235a to 235c and the inner peripheral surface 3a of the frame member 3 over the vicinity of the parting material 224 of the new lower frame 220.

Further, the waterproof tape 241 is attached to the indoor side surface 220a of the newly installed lower frame 220 and the indoor side surface 230a of the lower frame base material 230. The waterproof tape 241 extends from the indoor side surface 230a of the lower frame base material 230 to a portion to be attached to the inner peripheral surface 3a of the frame member 3 of the waterproof tape 240. In the present embodiment, the indoor side surface 230a of the lower frame base material 230 and the indoor side surface 220a of the newly installed lower frame 220 are arranged on the same surface. As a result, the waterproof tape 241 can be attached in a plane, so that the attachment workability is good, the attachment state is also good, and the water stop function can be improved.

b6. Drainage structure of the lower frame As shown in FIG. 5, a drainage hole 215 is provided in the lower part of the standing wall portion 211 of the existing lower frame 210, specifically, in the connection portion 210b between the standing wall portion 211 and the prospective wall portion 210a. .. The drainage hole 215 is provided in the vertical wall portion 211 prior to the attachment of the lower frame base material 230 and the new lower frame 220 to the existing lower frame 210.

In this refurbished sash 1, the mounting screw 225 for attaching the new lower frame 220 penetrates the new lower frame 220 on the indoor side of the vertical wall portion 211 and the outdoor side upper surface portion 213A of the lower frame base material 230. As indicated by the arrow, there is a concern that rainwater may enter from the new lower frame 220 along the mounting screw 225 and collect on the existing lower frame 210 on the indoor side of the standing wall portion 211. However, according to this refurbished sash 1, even if the vertical wall portion 211 is arranged on the existing lower frame 210 on the outdoor side of the mounting screw 225, the rainwater that has entered the indoor side of the vertical wall portion 211 is drained into the drain hole 215. It can be easily drained to the outdoor side of the vertical wall portion 211. Since the prospective wall portion 210a is inclined downward toward the outdoor side, rainwater is quickly drained from the drainage hole 215. The rainwater drained to the outdoor side of the vertical wall portion 211 flows down onto the overhanging portion 212 of the existing lower frame 210 located below the drain hole 215, and is between the adjacent lower frame base materials 230 or the existing lower frame. The water is drained to the outside from between the outdoor side wall portion 213 of 210 and the outdoor side wall portion 232 of the lower frame base material 230.

One drainage hole 215 is provided in the vertical wall portion 211, or a plurality of drainage holes 215 are provided along the length direction of the vertical wall portion 211. In particular, when the drain hole 215 is provided at one end or both ends (vertical frame 300, 400 side) of the vertical wall portion 211 in the length direction, drainage is performed from the end portion of the lower frame 200. , It is preferable because the drainage can be made inconspicuous. Since the outdoor side of the vertical wall portion 211 is covered by the outdoor side wall portion 221 of the new lower frame 220, there is no possibility that rainwater will enter the drain hole 215 from the outdoor side.

As shown in FIG. 5, between the newly installed lower frame 220 and the base material main body 231 of the lower frame base material 230, specifically, between the new lower frame 220 and the outdoor side upper surface portion 231A of the base material main body 231. , A predetermined space portion S3 is formed. As a result, the newly installed lower frame 220 and the outdoor side upper surface portion 231A of the base material main body 231 are separated from each other without contacting each other. Therefore, it is possible to avoid the phenomenon that the rainwater that has entered through the mounting screw 225 remains between the newly installed lower frame 220 and the outdoor side upper surface portion 231A of the base material main body 231 due to the action of capillaries, and it is possible to avoid the phenomenon that the rainwater enters from the elongated hole 237 or the like. It can be swiftly flowed down to the existing lower frame 210 side.

Further, as shown in FIG. 5, the newly installed lower frame 220 has a bottom wall portion 226 that inclines downward toward the outdoor side. The outdoor side wall portion 221 of the new lower frame 220 is integrally formed at the outdoor end of the bottom wall portion 226, and the mounting screw 225 of the new lower frame 220 penetrates the bottom wall portion 226. Above the bottom wall portion 226, there is an upper wall portion 227 in which the shoji 20 can be opened and closed. The space between the bottom wall portion 226 and the upper wall portion 227 is sealed by a sealing member 228 mounted from the outdoor side. Therefore, the rainwater that has entered the bottom wall portion 226 through the mounting screw 225 can be drained to the outside through the gap of the sealing member 228 along the inclined surface of the bottom wall portion 226.

<C. Vertical frame ＞
Next, the vertical frames 300 and 400 will be described. As shown in FIGS. 3, 6, and 7, the vertical frames 300 and 400 include existing vertical frames 310 and 410, new vertical frames 320 and 420, and vertical frame base materials 330 and 430. To.

c1. Existing Vertical Frames The existing vertical frames 310 and 410 are attached to the left and right vertical sides of the opening 2 of the building on the outdoor side, respectively. The existing vertical frames 310 and 410 have outdoor side wall portions 311 and 411 extending outward on the left and right at the outdoor end, and extend toward the indoor end at the indoor end. It has angle portions 312 and 412 integrally. The angle portions 312 and 412 are fixed to the outdoor end of the inner peripheral surface 3a of the frame member 3.

The existing vertical frames 310 and 410 have a plurality of (three in this embodiment) projecting pieces 313 and 413 projecting toward the inside of the opening 2 (center side in FIG. 3, right side in FIG. 6, left side in FIG. 7). Have. The projecting pieces 313 and 413 extend in parallel along the length direction of the existing vertical frames 310 and 410.

The protruding pieces 313 and 413 are shown by broken lines in the existing protruding pieces 313a and 413a such as fins and ribs originally provided in the existing vertical frames 310 and 410 before being remodeled into the refurbished sash 1. ) Is the remaining part of the protruding piece, which is composed of the root portion of the existing protruding pieces 313a and 413a left uncut when the piece is cut. Each of the projecting pieces 313 and 413 has substantially the same height, and projects further toward the inside of the opening 2 than the inner peripheral surface 3a of the frame member 3. In the present embodiment, the projecting pieces 313 and 413 project from the inner peripheral surface 3a of the frame member 3 by about 5 mm.

c2. New vertical frames The new vertical frames 320 and 420 are attached to the inner peripheral sides of the existing vertical frames 310 and 410 with the vertical frame base materials 330 and 430 sandwiched between them. The new vertical frames 320 and 420 are mainly made of a metal frame, and have first outdoor side wall portions 321a and 421a extending outward on the left and right at the end on the outdoor side, and further have a first outdoor side wall portion 321a and 421a. The second outdoor side wall portions 321b and 421b extending toward the indoor side are integrally provided at the end portions of the side wall portions 321a and 421a.

The first outdoor side wall portions 321a and 421a extend substantially in parallel with the outdoor side wall portions 311 and 411 of the existing vertical frames 310 and 410, and are arranged so as to cover the entire outdoor side wall portions 311 and 411. Further, the second outdoor side wall portions 321b and 421b are arranged so as to cover the outdoor side wall portions 311 and 411 of the existing vertical frames 310 and 410 from the left and right outside.

The new vertical frames 320 and 420 have resin angle members 322 and 422 extending toward the indoor side at the end of the indoor side. The angle members 322 and 422 are integrally formed with the groove portion 11 in which the screen door 30 is housed, and are arranged at intervals from the inner peripheral surface 3a of the frame member 3. A resin angle cover 323, 423 is attached between the angle member 322 and 422 and the inner peripheral surface 3a of the frame member 3. The boundary between the angle cover 323 and 423 and the inner peripheral surface 3a of the frame member 3 is shielded by the resin L-shaped parting material 324 and 424. The parting members 324 and 424 are fixed to the inner peripheral surface 3a of the frame member 3 by mounting screws 324a and 424a.

The new vertical frames 320 and 420 are fixed to the vertical frame base materials 330 and 430 via spacer members 325 and 425 by mounting screws 326a, 326b, 426a and 426b. The mounting screws 326a and 426a penetrate the central portion of the vertical frame base material 330 and 430 and are screwed into the existing vertical frames 310 and 410. Further, the mounting screws 326b and 426b penetrate from the bottom of the groove 11 to the vicinity of the indoor end of the vertical frame base material 330 and 430.

c3. Vertical frame base material The vertical frame base material 330, 430 is arranged between the existing vertical frames 310 and 410 and the new vertical frames 320 and 420. As shown in FIG. 8, a plurality of vertical frame base materials 330 and 430 are provided at intervals along the length direction of the existing vertical frames 310 and 410. The vertical frame base material 330 and the vertical frame base material 430 have the same configuration.

Details of the vertical frame base materials 330 and 430 are shown in FIG. FIG. 17 is a perspective view of the back surface side of the vertical frame base material 330 and 430 as viewed from the outdoor side. The vertical frame base material 330, 430 is made of metal, and has a base material main body 331, 431, an outdoor side wall portion 332, 432, and a protruding portion 333, 433 integrally.

The base material main bodies 331 and 431 are made of plate-shaped members that are sufficiently short with respect to the length of the existing vertical frames 310 and 410 in the length direction, and extend the inner peripheral side of the existing vertical frames 310 and 410 in the indoor and outdoor directions. By covering with the new vertical frames 320, 420, a substantially flat mounting surface is formed.

As shown in FIG. 8, a plurality of vertical frame base materials 330 and 430 are provided at intervals along the length direction of the existing vertical frames 310 and 410. The indoor end of the base material main body 331 and 431 is arranged on the inner peripheral surface 3a of the frame member 3 so as to cover the angle portions 312 and 412 of the existing vertical frames 310 and 410.

As shown in FIGS. 6 and 7, the outdoor side wall portions 332 and 432 extend outward from the outdoor end portions of the base material main body 331 and 431. The outdoor side wall portions 332 and 432 extend substantially parallel to the outdoor side wall portions 311 and 411 of the existing vertical frames 310 and 410, and the first outdoor side wall portions 321a and 421a of the new vertical frames 320 and 420 and the existing vertical frames 310 and 410 It is arranged in contact with the outdoor side wall portions 311 and 411 between the outdoor side wall portions 311 and 411.

The protrusions 333 and 433 are integrally formed with the indoor end portions of the base material main bodies 331 and 431. The protrusions 333 and 433 are arranged so as to face the inner peripheral surface 3a of the frame member 3, and are inside the frame member 3 from the back surface of the base material main bodies 331 and 431 (the surface on the side of the existing vertical frames 310 and 410). It protrudes toward the peripheral surface 3a. The protrusion height of the protrusions 333 and 433 is the same as or slightly larger than the height at which the protrusion pieces 313 and 413 remaining in the existing vertical frames 310 and 410 protrude from the inner peripheral surface 3a of the frame member 3. It is said that.

c4. Mounting structure of the vertical frame base material The vertical frame base materials 330 and 430 are mounted on the existing vertical frames 310 and 410 by a pair of mounting stays 334 and 434 on the back surface of the base material main body 331. Each of the mounting stays 334 and 434 is formed in a strip shape extending along the length direction of the vertical frame base material 330 and 430, and is formed in the base material main body 331 and 431 with long holes 335 and 435 long in the indoor and outdoor directions. It is attached to 336, 436 by mounting screws 337, 437. Since the mounting stays 334 and 434 are mounted using the elongated holes 335, 435, 336, and 436, the mounting positions of the mounting stays 334 and 434 in the indoor and outdoor directions can be finely adjusted.

Each mounting stay 334, 434 has bent portions 334b and 434b that bend toward the existing vertical frames 310 and 410, respectively, on both ends of the fixing portions with the mounting screws 337 and 437. As a result, both end portions 334a and 434a of the mounting stays 334 and 434 project from the base material main body 331 and 431 toward the existing vertical frames 310 and 410. The mounting stays 334 and 434 are fixed to the inner peripheral surfaces 310a and 410a of the existing vertical frames 310 and 410 avoiding the protruding pieces 313 and 413 by the mounting screws 338 and 438 at both ends 334a and 434a, respectively. As a result, the vertical frame base materials 330 and 430 are attached to the inner peripheral side of the existing vertical frames 310 and 410.

Here, since both end portions 334a and 434a of the mounting stays 334 and 434 project toward the existing vertical frames 310 and 410 from the base material main bodies 331 and 431, the base material main bodies 331 and 431 are the existing vertical frames. The frames 310 and 410 are arranged apart from the inner peripheral surfaces 310a and 410a by the height of the bending due to the bending portions 334b and 434b. As a result, the space portion S2 is formed between the vertical frame base materials 330 and 430 and the inner peripheral surfaces 310a and 410a of the existing vertical frames 310 and 410.

The height of the bending due to the bending portions 334b and 434b of the mounting stays 334 and 434 should be the same as or slightly higher than the protruding height (about 5 mm) of the protruding pieces 313 and 413 of the existing vertical frames 310 and 410. Is set to. Therefore, all the protruding pieces 313 and 413 of the existing vertical frames 310 and 410 are housed in the space portion S2 and do not interfere with the vertical frame base materials 330 and 430, so that they are on the inner peripheral side of the existing vertical frames 310 and 410. The vertical frame base materials 330 and 430 can be easily attached.

Further, since the vertical frame base material 330 and 430 shown in the present embodiment are provided with protruding portions 333 and 433 protruding toward the inner peripheral surface 3a of the frame member 3, the protruding portions 333 and 433 are provided at the indoor end portions. The portions 333 and 433 make it possible to maintain a constant distance between the inner peripheral surface 3a of the frame member 3 and the base material main bodies 331 and 431. Therefore, when the new vertical frames 320 and 420 are attached to the vertical frame base materials 330 and 430, the vertical frame base materials 330 and 430 are directed toward the existing vertical frames 310 and 410 due to the bending of the mounting stays 334 and 434. Even if it may move, it is possible to prevent the base material main bodies 331 and 431 from being excessively close to the existing vertical frames 310 and 410, and to secure a space portion S2 in which the projecting pieces 313 and 413 are accommodated. can.

When constructing the vertical frames 300 and 400 of the refurbished sash 1, first, the projecting pieces (existing projecting pieces) 313a and 413a protruding toward the inner peripheral side of the existing vertical frames 310 and 410 are attached from the inner peripheral surface 3a of the frame member 3. Is also cut so as to project and remain inside the opening 2 to form projecting pieces (projecting piece remaining portions) 313 and 413 left uncut on the inner peripheral surfaces 310a and 410a of the existing vertical frames 310 and 410. Next, the vertical frame base material is provided on the inner peripheral side of the existing vertical frames 310 and 410 with the space portion S2 between the inner peripheral surfaces 310a and 410a of the existing vertical frames 310 and 410 by the mounting stays 334 and 434. 330 and 430 are attached, and the protruding pieces 313 and 413 are housed in the space portion S2. As a result, even if the projecting pieces 313 and 413 project from the existing vertical frames 310 and 410, the vertical frame base materials 330 and 430 can be easily attached to the inner peripheral side of the existing vertical frames 310 and 410.

The protrusions 333 and 433 are arranged at the most indoor end of the vertical frame base members 330 and 430. The indoor side surfaces of the protrusions 333 and 433 form the indoor side surfaces 330a and 430a of the vertical frame base materials 330 and 430. As shown in FIGS. 6 and 7, the indoor side surfaces 330a and 430a are arranged on the same surface as the indoor side surfaces 320a and 420a except for the angle covers 323 and 423 of the new vertical frames 320 and 420. The angle covers 323 and 423 cover the indoor side surfaces 320a, 330a, 420a, 430a over the indoor side surfaces 330a and 430a of the vertical frame base material 330 and 430 and the indoor side surfaces 320a and 420a of the new vertical frames 320 and 420. It is installed like this.

c5. Water-stopping structure of the vertical frame As shown in FIGS. 6 and 7, the protrusions 333 and 433 of the vertical frame base material 330 and 430 and the inner peripheral surface 3a of the frame member 3 (angle portions 312 of the existing vertical frames 310 and 410, A waterproof tape 340, 440 is interposed between the surface of the 412). The waterproof tapes 340 and 440 are attached from the protruding pieces 313 and 413 of the existing vertical frames 310 and 410 to the vicinity of the parting materials 324 and 424.

Further, the waterproof tapes 341 and 441 are attached to the indoor side surfaces 320a and 420a of the new vertical frames 320 and 420 and the indoor side surfaces 330a and 430a of the vertical frame base material 330 and 430. The waterproof tapes 341 and 441 extend from the indoor side surfaces 330a and 430a of the vertical frame base material 330 and 430 to a portion to be attached to the inner peripheral surface 3a of the frame member 3 of the waterproof tape 340 and 440. .. In the present embodiment, the indoor side surfaces 330a and 430a of the vertical frame base materials 330 and 430 and the indoor side surfaces 320a and 420a of the new vertical frames 320 and 420 are arranged on the same surface. As a result, the waterproof tapes 341 and 441 can be attached in a plane, so that the attachment workability is good, the attachment state is also good, and the water stop function can be improved. In the present embodiment, the indoor side surfaces 325a and 425a of the spacer members 325 and 425 are also arranged on the same surface as the indoor side surfaces 320a, 420a, 330a and 430a, but the indoor side surfaces 325a of the spacer members 325 and 425, The position of 425a is not particularly limited.

Further, water blocking materials 350 and 450 made of foam rubber or the like are interposed between the existing vertical frames 310 and 410 and the new vertical frames 320 and 420. The water blocking materials 350 and 450 are sandwiched between the outdoor side wall portions 311 and 411 of the existing vertical frames 310 and 410 and the first outdoor side wall portions 321a and 421a of the new vertical frames 320 and 420, and the new vertical frames 320 and 420 are provided. It extends long along the length direction of.

The window frame 10 having the above configuration is rectangularly framed by the upper frame 100, the lower frame 200, and the left and right vertical frames 300, 400. As a result, the new frame (new upper frame 120, new lower frame 220 and new vertical frame 320, 420) of the refurbished sash 1 becomes the existing frame (existing upper frame 110) via the base materials 130, 230, 330, 430, respectively. , The existing lower frame 210 and the existing vertical frames 310, 410) are attached so as to cover the inner peripheral side.

In the present embodiment, the projecting pieces 113 remaining in the existing upper frame 110 and the projecting pieces 313 and 413 remaining in the existing vertical frames 310 and 410 are configured to be housed in the space portions S1 and S2, respectively. Similarly, when the remaining protruding piece is formed in the existing lower frame 210, a space portion is formed between the existing lower frame 210 and the lower frame base material 230, and the protruding piece is formed in the space portion. It should be accommodated.

1 Refurbished sash 2 Opening 100 Upper frame 210 Existing lower frame 220 New lower frame 225 Mounting screw 230 Lower frame base material 231A Outdoor side upper surface 231B Indoor side upper surface 231Ba Indoor side upper surface outdoor side end 234 Connection part

Claims (4)

The existing lower frame remaining in the opening of the building, the new lower frame attached so as to cover the inner peripheral side of the existing lower frame, and the new lower frame provided between the existing lower frame and the new lower frame. A refurbished sash with a base material that forms the mounting surface of the frame.
The base material includes an outdoor side upper surface portion, an indoor side upper surface portion provided on the upper frame side of the outdoor side upper surface portion, and a connecting portion connecting the outdoor side upper surface portion and the indoor side upper surface portion. Have and
The indoor upper surface portion is arranged on the upper surface of the frame member and fixed to the frame member by mounting screws.
The new lower frame is a refurbished sash that is placed on the upper surface of the indoor upper surface portion . The refurbished sash according to claim 1, wherein the connecting portion is an inclined surface that inclines downward from the indoor side upper surface portion toward the outdoor side upper surface portion. The new lower frame is fixed to the base material by mounting screws penetrating the new lower frame and the base material.
The refurbished sash according to claim 1 or 2, wherein the mounting screw penetrates the outdoor side upper surface portion of the base material. The refurbished sash according to any one of claims 1 to 3, wherein the newly installed lower frame is in contact with the outdoor side end portion of the indoor side upper surface portion.

Images