JP6957389B2 - 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).

Further, as a refurbished sash, a sash in which a base material serving as a mounting surface for the new frame is provided between the existing frame and the new frame is also known (see, for example, Patent Document 2).

Japanese Unexamined Patent Publication No. 2016-94771 Japanese Unexamined Patent Publication No. 2015-132148

In the refurbished sash, the outdoor side surface of the new frame is arranged so as to cover the outdoor side surface of the existing frame from the outdoor side. At this time, on the lower frame side, it is necessary to leave a predetermined gap between the outdoor side surface of the existing lower frame and the outdoor side surface of the new lower frame for drainage in the unlikely event that rainwater intrudes into the window frame. .. It is desirable that this gap is always formed to be constant in order to maintain the drainage performance and improve the appearance of the refurbished sash.

However, the new frame is mounted from the outdoor side with respect to the existing frame, and after mounting, the gap between the outdoor side of the existing lower frame and the outdoor side of the new lower frame cannot be confirmed, so the gap is formed to be constant. There is a problem that it is difficult to attach a new frame so that it can be done.

Therefore, an object of the present invention is to provide a refurbished sash capable of easily forming a certain gap between the outdoor side surface of the existing lower frame and the outdoor side surface of the new lower frame.

(1) The refurbished sash according to the present invention includes an existing upper frame (for example, the existing upper frame 110 described later) and an existing lower frame (for example, the existing one described later) remaining in the opening of the building (for example, the opening 2 described later). An existing frame consisting of a lower frame 210) and an existing vertical frame (for example, existing vertical frames 310 and 410 described later) and a new upper frame attached so as to cover the inner peripheral side of the existing frame (for example, a place, a new installation described later). A new frame composed of a frame 120), a new lower frame (for example, a new lower frame 220 described later) and a new vertical frame (for example, new vertical frames 320 and 420 described later), and the existing lower frame and the new lower frame. A refurbished sash (for example, a refurbished sash 1 described later) including a base material provided between them (for example, a lower frame base material 230 described later), and the existing lower frame is directed downward toward an end on the outdoor side. It has a lower frame outdoor side wall portion (for example, a lower frame outdoor side wall portion 213 described later) extending toward the outside, and the newly installed lower frame extends downward to an end portion on the outdoor side to extend the lower frame outdoor side wall portion. It has a lower frame outdoor side surface portion (for example, a lower frame outdoor side surface portion 221 described later) that covers from the outdoor side, and the base material has a front wall portion (for example, a front wall portion described later) extending downward from an end portion on the outdoor side. The front wall portion has a wall portion 232), and the front wall portion is arranged between the lower frame outdoor side wall portion and the lower frame outdoor side surface portion, and has a protruding step portion (for example, a protruding step portion) protruding toward the outdoor side. It has a protruding step portion 233) described later, and the lower frame outdoor side surface portion is in contact with the protruding step portion from the outdoor side.

(2) In the refurbished sash according to (1), a space (for example, space 201 described later) is provided between the lower frame outdoor side wall portion and the lower frame outdoor side surface portion below the protruding step portion. It is preferable to have.

(3) In the refurbished sash according to (1) or (2), a plurality of the base materials are arranged at intervals in the length direction of the existing lower frame, and the front wall portions of the adjacent base materials are arranged. It is preferable to have a gap (for example, a gap 202 described later) between the two.

(4) In the refurbished sash according to any one of (1) to (3), the existing upper frame is an upper frame outdoor side wall portion (for example, an upper frame outdoor described later) extending downward to an end portion on the outdoor side. The newly installed upper frame has a side wall portion 111), and the newly installed upper frame extends upward to an end portion on the outdoor side and covers the outdoor side wall portion of the upper frame from the outdoor side. It has a side surface portion 122), and a water blocking material (for example, water blocking materials 160 and 161 described later) is arranged between the upper frame outdoor side wall portion and the upper frame outdoor side surface portion. The distance between the lower frame outdoor side wall and the lower frame outdoor side surface (for example, the separation distance L2 described later) is the distance between the upper frame outdoor side wall and the upper frame outdoor side surface (for example, described later). It is preferable that the lower frame protrudes toward the outdoor side from the outdoor side wall portion so as to have a separation distance L1).

According to the present invention, it is possible to provide a refurbished sash capable of easily forming a certain gap between the outdoor side surface of the existing lower frame and the outdoor side surface of the new lower frame.

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 a cross-sectional view of the refurbished sash shown in FIG. It is a vertical cross-sectional view which shows the main part on the upper side of the refurbished sash shown in FIG. 2 in an enlarged manner. It is a vertical cross-sectional view which shows the main part under the refurbished sash shown in FIG. 2 in an enlarged manner. It is a cross-sectional view which shows the main part on the left side of the refurbished sash shown in FIG. 2 in an enlarged manner. FIG. 5 is an enlarged cross-sectional view showing a main part on the right side of the refurbished sash shown in FIG. 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 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.
FIG. 1 is a front view of a refurbished sash according to an embodiment of the present invention, FIG. 2 is a vertical sectional view of the refurbished sash shown in FIG. 1, and FIG. 3 is a cross section of the refurbished sash shown in FIG. It is a figure. FIG. 4 is an enlarged vertical cross-sectional view showing the upper main part of the refurbished sash shown in FIG. 2, and FIG. 5 is an enlarged vertical cross-sectional view showing the 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 a cross section showing the main part on the right side of the refurbished sash shown in FIG. 2 in an enlarged manner. 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 is mounted on the outdoor side of the opening 2 of the building, and is framed in a rectangular shape by the upper frame 100, the lower frame 200, and a pair of left and right vertical frames 300, 400. The window frame 10 is provided, a shoji 20 that can be opened and closed in the window frame 10, and a screen door 30 that is slidably housed in the window frame 10 on the indoor side of the shoji 20. A frame member 3 is provided on the inner peripheral side of the opening 2 over four circumferences. 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 over 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 the groove 11 provided on the 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. The screen door 30 is extended to the indoor side of the shoji 20 by sliding the vertical frame unit 32 attached to the end of the net unit 31 toward the vertical frame 400 side, and the vertical frame unit 32 is moved to the vertical frame 300 side. It is configured to be folded by sliding it 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 extended is shown by a chain 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 upper frame outdoor side wall portion 111 extending downward at an end portion on the outdoor side. As shown in FIG. 4, the upper frame outdoor side wall portion 111 is cut from 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. It is a root portion of the existing side wall portion 111a that is left uncut at the time. The lower end of the upper frame 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 toward the inside of the opening 2 from 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 composed of a metal frame body, and has an overhanging portion 121 on the outdoor side, which projects further to the outdoor side than the shoji 20. The overhanging portion 121 is a portion where the prospective wall portion 120b of the new upper frame 120 extending in the indoor / outdoor direction is extended toward the outdoor side, and is inclined downward toward the outdoor side. The tip of the overhanging portion 121 has an upper frame outdoor side surface portion 122 that rises upward. The upper frame outdoor side surface portion 122 extends substantially in parallel with the upper frame outdoor side wall portion 111 of the existing upper frame 110, and is arranged so as to cover the entire upper frame outdoor side wall portion 111 from the outdoor side. ..

The upper frame outdoor side surface 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 upper frame outdoor side surface portion 122. The ribs 122b and 122c are arranged below the ribs 122a and project so as to come into contact with the front wall portion 132 of the upper frame base material 130, which will be 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 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 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 a 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 in the length direction of the existing upper frame 110. 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, a front 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 extending direction of the upper frame 100, 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 and outdoor directions. By covering, a substantially flat mounting surface for the new upper frame 120 is formed. The indoor end of the base material main 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 front wall portion 132 extends upward from the outdoor end of the base material main body 131. The front wall portion 132 extends substantially parallel to the upper frame outdoor side wall portion 111 of the existing upper frame 110, and is between the upper frame outdoor side surface portion 122 of the new upper frame 120 and the upper frame outdoor side wall portion 111 of the existing upper frame 110. , The existing upper frame 110 is arranged so as to cover substantially the lower half of the upper frame outdoor side wall portion 111. The front wall portion 132 is arranged so as to be in contact with the ribs 122b and 122c provided on the upper frame outdoor side surface portion 122 of the new upper frame 120, but the upper end portion 132a of the front wall portion 132 is below the rib 122a. Is located in.

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 to 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 protruding portions 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 protruding portion 133a is arranged at the most indoor side end portion 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 over 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 projecting portions 133a to 133d block the rainwater from between the upper frame outdoor side wall portion 111 of the existing upper frame 110 and the front wall portion 132 of the upper frame base material 130, and block the rainwater. As mentioned above, it also has a function of preventing intrusion into the indoor side. 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 Upper Frame Base Material As shown in FIG. 4, the outdoor side of the upper frame base material 130 is fixed to the upper frame 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 includes a base 41 mounted on the back surface of the base material main body 131, a mounting piece 42 mounted on the upper frame outdoor side wall 111 of the existing upper frame 110, and a countersunk screw rotatably held by the base 41. A height 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 side of the existing upper frame 110). 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), which will be 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 a through hole that is arranged on the outdoor side of the protrusion 133d on the most outdoor side and penetrates the base material main body 131 on the front and back sides. 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 housed so as to sandwich the upper frame outdoor side wall portion 111 from the lower side of the upper frame outdoor side wall portion 111 of the existing upper frame 110. The mounting piece 42 extends so as to project from below the upper frame outdoor side wall portion 111 sandwiched between the holding pieces 42a and 42a toward the indoor side, and is between the pair of support plate portions 41a and 41a on the base 41. It is arranged so that it is sandwiched.

A mounting screw 45 penetrating the mounting piece 42 is screwed from below with the upper frame 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 outer side wall portion 111 of the upper frame and the outer diameter of the threaded portion of the mounting screw 45. Therefore, the upper frame outdoor side wall portion 111 between the holding pieces 42a and 42a is sandwiched between one holding piece 42a (the holding piece 42a on the outdoor side in this embodiment) and the mounting screw 45. At this time, since the threads of the mounting screws 45 bite into the upper frame outdoor side wall portion 111 and the holding piece 42a, respectively, the mounting screws 45 do not easily come off, and the mounting piece 42 is firmly attached to the upper frame outdoor side wall portion 111. Can be fixed with.

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 of the upper frame, and the holding piece 42a and the outdoor side wall portion 111 of the upper frame 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 of the upper frame, and prevents the mounting piece 42 from sliding laterally in conjunction with the rotation of the mounting screw 45. As a result, workability when fixing the mounting piece 42 to the outdoor side wall portion 111 of the upper frame is improved.

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 claws 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 into the mounting piece 42 on the indoor side of the pair of holding pieces 42a, 42a while the head portion 43a is rotatably held by the holding claws 41b, 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 adjacent elongated holes 136. The hole portion 137 is a through hole that penetrates the front and back surfaces of the base material main body 131. 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 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 a support plate. While sandwiched between the portions 41a and 41a, the height adjusting screw 43 moves in the vertical direction along the axial direction. 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.

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 water blocking tape 150 covers the protruding piece 113 of the existing upper frame 110 and is attached to 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 water-stopping tape 151 extends from the indoor side surface 130a of the upper frame base material 130 so as to overlap the portion to be attached to the inner peripheral surface 3a of the frame member 3 of the water-stopping 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 water-stopping tape 151 can be stuck in a flat surface, so that the sticking workability is good, the sticking state is also good, and the water-stopping 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 elongated along the length direction of the new upper frame 120.

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

Since the water blocking materials 160 and 161 are sandwiched between the upper frame outdoor side wall portion 111 and the upper frame outdoor side wall portion 122, the upper frame outdoor side wall portion 122 is more water-stopping than the upper frame outdoor side wall portion 111. It is located so as to protrude to the outdoor side in an amount corresponding to the thickness of the materials 160 and 161. As a result, as shown in FIG. 4, a separation distance L1 exists between the upper frame outdoor side wall portion 111 and the upper frame outdoor side surface portion 122.

<B. Lower 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 220 arranged above. The vertical wall portions 211 are 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 standing 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 a lower frame 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 an 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 a lower frame outdoor side surface portion 221 extending downward at an end portion on the outdoor side. The lower frame outdoor side surface portion 221 extends substantially parallel to the lower frame outdoor side wall portion 213 of the existing lower frame 210, and is arranged so as to cover the entire lower frame 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 indoors with respect to 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 members 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 integrally includes a base material main body 231, a front wall portion 232, a protruding step portion 233, a connecting portion 234, and a plurality of protruding portions 235a to 235c.

The base material main body 231 is made of a plate-shaped member that is sufficiently short in length along the extending direction of the lower frame 200, and covers the inner peripheral side of the existing lower frame 210 in the indoor and outdoor directions to newly install the lower frame. It forms a substantially flat mounting surface for the 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 front wall portion 232 extends downward from the outdoor end of the base material main body 231. The front wall portion 232 extends substantially parallel to the lower frame outdoor side wall portion 213 of the existing lower frame 210, and is between the lower frame outdoor side surface portion 221 of the new lower frame 220 and the lower frame outdoor side wall portion 213 of the existing lower frame 210. , It is arranged with the same length as the lower frame outdoor side surface portion 221 of the newly installed lower frame 220. The front wall portion 232 is arranged in contact with the lower frame outdoor side wall portion 213 of the existing lower frame 210 from the outdoor side.

Since a plurality of lower base members 230 are provided at intervals along the length direction of the existing lower frame 210, as shown in FIG. 8, the front wall portions 232 and 232 of the adjacent lower frame base members 230 are connected to each other. There is a gap 202 between which the lower base member 230 is not present. Therefore, as will be described later, the rainwater that has entered the lower frame 200 is smoothly drained to the outdoor side from the gap 202 in which the front wall portion 232 does not exist.

The protruding step portion 233 is arranged at the connection portion between the base material main body 231 and the front 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 front wall portion 232. It is integrally formed over the front wall portion 232.

As shown in FIG. 5, the lower frame outdoor side surface portion 221 of the new lower frame 220 is in contact with the protruding step portion 233 from the outdoor side. As a result, the lower frame outdoor side surface portion 221 of the newly installed lower frame 220 is positioned so as to protrude to the outdoor side by the amount of protrusion of the protruding step portion 233 from the front wall portion 232 of the lower frame base material 230, and the lower frame outdoor side wall portion. A space 201 having a constant separation distance L2 is formed between the 213 and the outdoor side surface portion 221 of the lower frame.

This space 201 can be easily formed by simply bringing the lower frame outdoor side surface portion 221 of the new lower frame 220 into contact with the lower frame outdoor side wall portion 213 of the existing lower frame 210 from the outdoor side. Therefore, a space 201 having a constant separation distance L2 for drainage can be easily formed between the outdoor side surface of the existing lower frame 210 and the outdoor side surface of the new lower frame 220.

As shown in FIG. 4, the separation distance L2 forming the space 201 is such that the upper frame outdoor side surface portion 122 of the new upper frame 120 is provided with ribs 122b, 122c and the upper frame base material provided on the upper frame outdoor side surface portion 122. Due to the presence of the front wall portion 132 of the 130 and the holding piece 42a of the mounting piece 42 in the mounting member 40, it corresponds to the separation distance L1 protruding to the outdoor side from the outdoor side wall portion 111 of the upper frame. That is, in the protruding step portion 233, the separation distance L2 between the lower frame outdoor side wall portion 213 and the lower frame outdoor side surface portion 221 is set to the separation distance L1 between the upper frame outdoor side wall portion 111 and the upper frame outdoor side surface portion 122. , The lower frame is formed so as to project toward the outdoor side from the outdoor side wall portion 213. Therefore, on the lower frame 200 side, the position of the lower frame outdoor side surface portion 221 of the new lower frame 220 can be determined by simply bringing the lower frame outdoor side surface portion 221 of the new lower frame 220 into contact with the protruding step portion 233 from the outdoor side. It can be easily aligned with the position of the upper frame outdoor side surface portion 122 of the new upper frame 120.

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

The connecting portion 234 is a portion that connects the outdoor side upper surface portion 231A arranged on the outdoor side in the base material main body 231 and the indoor side upper surface portion 231B arranged on the indoor side. It is provided at a position on the indoor side of the mounting screw 225 of the frame 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 form the upper surface of the lower frame base material 230. The heights 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 invades between the newly installed lower frame 220 and the lower frame base material 230 from the outdoor side, it does not invade 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 infiltration of 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 inclines downward from the indoor side upper surface portion 231B toward the outdoor side upper surface portion 231A, but the connecting portion 234 is not limited to the inclined surface and is a substantially vertical wall surface. There may be.

The projecting portions 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 set to be 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 projecting 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 protruding portions 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 protruding portion 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 except for the angle cover 223 of the new lower frame 220. 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. 14 and 15. FIG. 14 is a cross-sectional view of the height adjusting mechanism 50 as viewed from the front, and FIG. 15 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 and 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 of the abutting portion 51a on the indoor side and the outdoor side. .. 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 steps 51c and 51c along the cross-sectional shape of the head 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 contact portion 51a and the pair of holding step portions 51c and 51c from the side of the base portion 51, so that the contact 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. 14, the base 51 is fixed to the base material main body 231 by two mounting screws 54 that penetrate the elongated holes 237, respectively. 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 contact 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 to 15, the base material main body 231 of the lower frame base material 230 has an elongated hole 238 formed in the same manner as the elongated hole 237 between adjacent elongated holes 237. The through hole 51d is arranged so as to face the inside of the elongated hole 238.

The support leg 53 includes a screw portion 53a that is screwed into the height adjusting screw 52, and a pair of L-shaped legs 53b and 53b that extend downward from the screw 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. 15, 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.

The height adjustment by the height adjustment mechanism 50 is performed by rotating the head 52a of the height adjustment screw 52 facing into the through hole 51d through the elongated hole 238 from the upper side of the lower frame base material 230 by a driver or the like. Will be done. 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, 53b of the support leg portion 53 are formed in an L shape and have a shape of projecting to the left and right along the length direction (left-right direction in FIG. 14) 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 new 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 water-stopping tape 241 can be stuck in a flat surface, so that the sticking workability is good, the sticking state is also good, and the water-stopping 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. The drainage hole 215 is provided in the standing wall portion 211 of the existing lower frame 210 prior to the attachment of the lower frame base material 230 and the new lower frame 220.

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 standing wall portion 211 and the outdoor side upper surface portion 213A of the lower frame base material 230. As shown by the arrow, there is a concern that rainwater may enter from the new lower frame 220 through the mounting screw 225 and collect on the existing lower frame 210 on the indoor side of the standing wall portion 211. However, by forming the drain hole 215 in the lower part of the standing wall portion 211, the rainwater that has entered the indoor side of the standing wall portion 211 can be drained to the outdoor side of the standing wall portion 211 through the drain 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, and flows from the gap 202 between the front wall portions 232 and 232 of the adjacent lower frame base material 230, or. , From between the lower frame outdoor side wall portion 213 of the existing lower frame 210 and the front wall portion 232 of the lower frame base material 230, the lower frame outdoor side wall portion 213 of the existing lower frame 210 and the lower frame outdoor side surface portion of the new lower frame 220. The water is smoothly drained to the outside through the space 201 between the 221 and the 221.

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, if drainage holes 215 are provided on both ends (vertical frames 300 and 400 sides) of the vertical wall portion 211 in the length direction, drainage can be made from both ends of the lower frame 200, making the drainage inconspicuous. It is preferable because it can be done.

As shown in FIG. 5, between the new 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 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 capillary action, and 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 an inclined portion 226 that inclines downward toward the outdoor side. The lower frame outdoor side surface portion 221 of the new lower frame 220 is integrally formed at the outdoor side end portion of the inclined portion 226, and the mounting screw 225 of the new lower frame 220 penetrates the inclined portion 226. Above the inclined portion 226, there is an upper wall portion 227 in which the shoji 20 can be opened and closed. The space between the inclined 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 inclined 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 inclined 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. NS.

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 vertical frame outdoor side wall portions 311 and 411 extending outward on the left and right at the ends on the outdoor side, and project toward the indoor side at the ends on the indoor side. It integrally has angle portions 312 and 412 extending to. The angle portions 312 and 412 are fixed to the outdoor end of the inner peripheral surface 3a of the frame member 3.

The inner peripheral surfaces 310a and 410a of the existing vertical frames 310 and 410 are arranged flush with the inner peripheral surfaces 3a of the left and right frame members 3, respectively.

A plurality of existing vertical frames 310 and 410 project from the inner peripheral surfaces 310a and 410a toward the inside of the opening 2 (center side in FIG. 3, right side in FIG. 6, left side in FIG. 7) (three in the present embodiment). ) Has protruding pieces 313 and 413. The protruding 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 portion of the protruding piece, which is composed of the root portion of the existing protruding pieces 313a and 413a that are left uncut when the) 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 protruding pieces 313 and 413 protrude by about 5 mm from the inner peripheral surface 3a of the frame member 3.

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 composed of a metal frame body, and have a first vertical frame outdoor side surface portions 321a and 421a extending outward on the left and right at the end on the outdoor side, and further, the first vertical frame 320 and 420. The second vertical frame outdoor side surface portions 321b and 421b extending toward the indoor side are integrally provided at the ends of the vertical frame outdoor side surface portions 321a and 421a.

The first vertical frame outdoor side surface portions 321a and 421a extend substantially parallel to the vertical frame outdoor side wall portions 311 and 411 of the existing vertical frames 310 and 410, and are arranged so as to cover the entire vertical frame outdoor side wall portions 311 and 411. Has been done. Further, the second vertical frame outdoor side surface portions 321b and 421b are arranged so as to cover the vertical frame outdoor side wall portions 311 and 411 of the existing vertical frames 310 and 410 from the left and right outer sides.

The new vertical frames 320 and 420 have resin angle members 322 and 422 extending toward the indoor side at the ends on 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. Resin angle covers 323 and 423 are attached between the angle members 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 members 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 members 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 materials 330 and 430 are 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 members 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. 16 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 members 330 and 430 are made of metal, and have a base material main body 331, 431, front wall portions 332, 432, and protrusions 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, a substantially flat mounting surface for the new vertical frames 320, 420 is formed.

As shown in FIG. 8, a plurality of vertical frame base members 330 and 430 are provided at intervals along the length direction of the existing vertical frames 310 and 410. The indoor end portions of the base material main bodies 331 and 431 are 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 front wall portions 332 and 432 extend outward from the outdoor end portions of the base material main bodies 331 and 431. The front wall portions 332 and 432 extend substantially parallel to the vertical frame outdoor side wall portions 311 and 411 of the existing vertical frames 310 and 410, and the first vertical frame outdoor side surface portions 321a and 421a of the new vertical frames 320 and 420 and the existing vertical frame. It is arranged in contact with the vertical frame outdoor side wall portions 311 and 411 between the vertical frame outdoor side wall portions 311 and 411 of 310 and 410.

The protruding portions 333 and 433 are integrally formed with the indoor end portions of the base material main bodies 331 and 431. The protruding portions 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 protruding height of the protruding portions 333 and 433 is equal to or slightly larger than the height at which the protruding pieces 313 and 413 remaining in the existing vertical frames 310 and 410 protrude with respect to 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 and has elongated holes 335 and 435 long in the indoor and outdoor directions. It is attached to 336, 436 with mounting screws 337, 437. Since the mounting stays 334 and 434 are mounted using the elongated holes 335, 435, 336, 436, the mounting positions of the mounting stays 334 and 434 in the indoor and outdoor directions can be finely adjusted.

Each of the mounting stays 334 and 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 toward the existing vertical frames 310 and 410 from the base material main bodies 331 and 431. 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.

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 material 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 protruding portions 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 or 440 is interposed between the surface of the 412 and 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 materials 330 and 430. The waterproof tapes 341 and 441 extend from the indoor side surfaces 330a and 430a of the vertical frame base materials 330 and 430 to the portions to be attached to the inner peripheral surface 3a of the frame member 3 of the waterproof tapes 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 and the attachment state is also good, so that the water blocking 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. 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 vertical frame outdoor side wall portions 311 and 411 of the existing vertical frames 310 and 410 and the first vertical frame outdoor side surface portions 321a and 421a of the new vertical frames 320 and 420, and are newly installed vertically. It extends long along the length direction of the frames 320 and 420.

The window frame 10 having the above configuration is framed in a rectangular shape 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 is connected to the existing frame (existing upper frame 110) via the base materials 130, 230, 330, and 430, respectively. , The existing lower frame 210 and the existing vertical frames 310, 410) are attached so as to cover the inner peripheral side.

1 Refurbished sash 2 Opening 110 Existing upper frame 111 Upper frame Outdoor side wall 120 New upper frame 122 Upper frame Outdoor side 160, 161 Water blocking material 201 Space 202 Gap 210 Existing lower frame 213 Lower frame Outdoor side wall 220 New lower frame 221 Lower frame outdoor side surface 230 Lower frame base material 232 Front wall 233 Protruding steps 310, 410 Existing vertical frame 320, 420 New vertical frame L1 Upper frame Outdoor side wall and upper frame Outdoor side surface separation distance L2 Lower frame Distance between the outdoor side wall and the outdoor side of the lower frame

Claims (4)

It consists of an existing frame consisting of an existing upper frame, an existing lower frame and an existing vertical frame remaining in the opening of the building, and a new upper frame, a new lower frame and a new vertical frame attached so as to cover the inner peripheral side of the existing frame. A refurbished sash provided with a new frame and a base material provided between the existing lower frame and the new lower frame.
The existing lower frame has a lower frame outdoor side wall portion extending downward at an end portion on the outdoor side.
The newly installed lower frame has a lower frame outdoor side surface portion that extends downward to an end portion on the outdoor side and covers the lower frame outdoor side wall portion from the outdoor side.
The base material has a front wall portion that extends downward from the outdoor end.
The front wall portion is arranged between the lower frame outdoor side wall portion and the lower frame outdoor side surface portion, and has a protruding step portion that protrudes toward the outdoor side.
The lower frame outdoor side surface portion is a refurbished sash that is in contact with the protruding step portion from the outdoor side. The refurbished sash according to claim 1, wherein a space is provided between the lower frame outdoor side wall portion and the lower frame outdoor side surface portion below the protruding step portion. A plurality of the base materials are arranged at intervals in the length direction of the existing lower frame.
The refurbished sash according to claim 1 or 2, wherein there is a gap between the front wall portions of the adjacent base materials. The existing upper frame has an upper frame outdoor side wall portion extending downward at an end portion on the outdoor side.
The newly installed upper frame has an upper frame outdoor side surface portion that extends upward to an end portion on the outdoor side and covers the upper frame outdoor side wall portion from the outdoor side.
A water blocking material is arranged between the outdoor side wall portion of the upper frame and the outdoor side surface portion of the upper frame.
The lower frame of the protruding step portion is such that the separation distance between the lower frame outdoor side wall portion and the lower frame outdoor side surface portion is the separation distance between the upper frame outdoor side wall portion and the upper frame outdoor side surface portion. The refurbished sash according to any one of claims 1 to 3, which protrudes toward the outdoor side from the outdoor side wall portion.

Images