JP2012117238A - Renovated sash and method for renovating sash - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a renovated sash that dispenses with framing work performed by screwing frame materials of a newly-installed frame body to each other and that can set the opening width of the newly-installed frame body great, and a method for renovating the sash.SOLUTION: A newly-installed frame body 2 for being attached in such a manner as to cover an inner peripheral surface of an existing frame body 1 attached to a building opening is provided. A corner component 30 is disposed between an inner peripheral surface of each of four corners of the existing frame body 1 and a frame material constituting the newly-installed frame body 2. The corner component 30 abuts on the inner peripheral surface of the existing frame body 1. Both ends of each frame material constituting the newly-installed frame body 2 abut on the corner components 30, and are fixed to frame materials constituting the existing frame body 1, respectively.

Description

  The present invention relates to a renovated sash in which a new frame is attached to the inner peripheral side of an existing frame provided in a building opening, and a method for refurbishing the sash, and in particular, the opening of the new frame is smaller than the opening of the existing frame. The present invention relates to a refurbished sash that is configured so as not to become a sash and a method of refurbishing the sash.

  Conventionally, there are two methods for refurbishing a sash. One is to remove an existing sash frame fixed to the opening of the building body and attach a new sash frame when replacing the sash. The other is to leave the existing sash frame fixed to the opening of the building body and attach a new sash frame to it.

  In the former means, the opening width in the sash frame can be the same before and after the refurbishment, but the building body is damaged at the time of replacement, and the construction period and cost are also high. According to the latter means, the construction period and cost can be reduced. Thus, as a renovation sash which attaches a new frame body with respect to an existing frame body, there exists a thing as mentioned in patent document 1, for example.

JP 2002-371755 A

  In the case of a refurbished sash in which a new frame is attached to the inner peripheral side of the existing frame, there is a problem that the opening width of the new frame is smaller than that before the refurbishment. The new frame is shipped from the factory in a state of being framed on four sides, and is installed on site. Therefore, the frame material constituting the new frame is fixed to the abutting frame material. Are formed along the longitudinal direction. In order to secure the connection strength of the frame material, there are restrictions on the arrangement and number of screw holes, which makes it difficult to freely set the cross-sectional shape of the frame material, and it is difficult to increase the opening width of the new frame body sufficiently Met.

  In addition, since the new frame was transported to the site in a four-round framework, it could not be said that transportability and workability were good. Even if the new frame is framed at the site, the work becomes complicated and the construction efficiency deteriorates. For this reason, it is conceivable to fix the frame material to the existing frame body without previously framing it, but the structure for securing the airtightness between the existing frame body and the new frame body and increasing the fixing strength is large. It was.

  The present invention has been made in view of the above-described problems, and has a renovated sash that can eliminate the frame work by screwing the frame members of the new frame body with a simple configuration and can increase the opening width of the new frame body. The purpose is to provide a method for renovating the sash.

In order to solve the above-mentioned problem, the refurbished sash according to the present invention is a refurbished sash having a new frame attached so as to cover an inner peripheral surface of an existing frame attached to a building opening.
Corner parts are disposed between the four corner inner peripheral surfaces of the existing frame and the frame material constituting the new frame, and the corner parts abut on the inner peripheral surface of the existing frame, and the new frame Each of the frame members constituting the frame member is configured such that both end portions abut against the corner part and are fixed to the respective frame members constituting the existing frame body.

  The refurbished sash according to the present invention is characterized in that the corner part has a contact surface portion with which an end surface of a frame material constituting the newly installed frame body contacts.

  Further, the refurbished sash according to the present invention is characterized in that a sealing material is disposed between the contact surface portion and the existing frame body.

  Furthermore, in the refurbished sash according to the present invention, the corner part has a horizontal abutting portion that abuts on an existing horizontal frame constituting the existing frame body, and a vertical abutment that abuts on an existing vertical frame constituting the existing frame body. And at least one of the lateral contact portion and the longitudinal contact portion is fixed to the existing frame body.

The sash refurbishment method according to the present invention is a sash refurbishment method in which a new frame comprising a new horizontal frame and a new vertical frame is attached so as to cover the inner peripheral surface of the existing frame attached to the building opening. ,
Corner parts are attached to the inner peripheral surfaces of the four corners of the existing frame body, both end surfaces of the new horizontal frame are brought into contact with the corner parts, and outer peripheral surfaces of both end portions of the new horizontal frame are brought into contact with the corner parts, respectively. The new vertical frame is abutted against the inner peripheral surface of the new horizontal frame, the outer peripheral surfaces of both ends of the new vertical frame are brought into contact with the corner parts, respectively, and at least of the new vertical frame and the new horizontal frame The upper horizontal frame is fixed to the existing frame from the inner peripheral surface side with screws.

  According to the refurbished sash according to the present invention, corner parts are arranged between the four corner inner peripheral surfaces of the existing frame and the frame material constituting the new frame, and the corner parts hit the inner peripheral surface of the existing frame. The frame members that make up the new frame body come into contact with the corner parts at both ends, and are fixed to the frame members that make up the existing frame body, thereby making contact with the existing frame body. Since both ends of each frame material of the new frame body are in contact with the corner parts and fixed to the existing frame body, the airtightness in the corner portion between the new frame body and the existing frame body can be achieved simply by providing a corner component. Can be secured, the frame can be fixed securely, the frame work of the frame material of the new frame body is not necessary, and the shape of the frame material can be designed freely, so the opening width of the new frame body is also increased be able to.

  Further, according to the refurbished sash according to the present invention, the corner part has an abutting surface portion with which the end face of the frame material constituting the new frame body comes into contact, thereby ensuring airtightness between the new frame body and the existing frame body. can do.

  Furthermore, according to the refurbished sash according to the present invention, the sealing surface is disposed between the contact surface portion and the existing frame body, thereby improving the airtightness between the new frame body and the existing frame body. it can.

  Furthermore, according to the refurbished sash according to the present invention, the corner part includes a horizontal abutting portion that abuts on an existing horizontal frame constituting the existing frame body, and a vertical abutment that abuts on the existing vertical frame constituting the existing frame body. And at least one of the lateral contact portion and the longitudinal contact portion is fixed to the existing frame body, thereby increasing the fixing strength of the corner parts and increasing the rigidity of the new frame body. be able to.

  And, according to the sash refurbishment method according to the present invention, it is possible to secure airtightness in the corner portion between the newly installed frame body and the existing frame body, by simply providing simple corner parts, and to securely fix both. Since the frame work by screwing the frame members of the new frame body is not required and the shape of the frame material can be designed freely, the opening width of the new frame body can be increased.

It is a longitudinal cross-sectional view of the remodeling sash in 1st Embodiment. It is a cross-sectional view of the refurbished sash according to the first embodiment. It is a front view of an existing frame and a new frame. It is the perspective view seen from two directions of an upper corner component. It is the perspective view seen from two directions of lower corner parts. It is a perspective view of the state where the upper corner part was attached to the existing frame. It is a perspective view of the state which attached the newly installed upper frame with respect to the existing frame. It is a perspective view of the state where the lower corner part was attached to the existing frame. It is a perspective view of the state which attached the newly installed lower frame with respect to the existing frame. It is sectional drawing showing the notch part of the existing upper frame and the existing lower frame. It is sectional drawing showing the notch part of the existing vertical frame. It is a perspective view of the state which attached the newly installed vertical frame with respect to the existing frame. It is a longitudinal cross-sectional view of the remodeling sash in 2nd Embodiment. It is a cross-sectional view of the refurbished sash according to the second embodiment.

  Embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a longitudinal sectional view of the modified sash according to the first embodiment, and FIG. 2 is a transverse sectional view of the modified sash according to the first embodiment. As shown in these drawings, the remodeled sash according to this embodiment is configured by attaching a new frame 2 to the inner peripheral side of an existing frame 1 attached to a building opening. However, the shoji inside and outside is placed in a draw. On the indoor side of the existing frame body 1, the frame material 3 is disposed over the entire circumference.

  The existing frame 1 is formed by framing an existing upper frame 10 and an existing lower frame 11 which are horizontal frames, and left and right existing vertical frames 12 and 12 which are vertical frames in a rectangular shape. The existing upper frame 10 includes an inner peripheral surface portion 10a facing the inner peripheral surface of the building opening. The inner peripheral surface portion 10a has an outdoor surface portion 10b at an outdoor end portion and an indoor surface portion 10d at an indoor end portion. An indoor extension 10e extending from the surface 10d to the indoor side is formed. The indoor extension 10 e is in contact with the inner peripheral surface of the frame material 3.

  The existing lower frame 11 includes an inner peripheral surface portion 11a facing the inner peripheral surface of the building opening, and the inner peripheral surface portion 11a has an inner rail portion 11d closer to the indoor side and an indoor surface portion 11e at the indoor end. An indoor extension portion 11f extending to the indoor side is formed from the indoor surface portion 11e. The indoor extension portion 11 f is in contact with the inner peripheral surface of the frame material 3.

  The existing vertical frame 12 includes an inner peripheral surface portion 12a facing the inner peripheral surface of the building opening, and the inner peripheral surface portion 12a has an outdoor surface portion 12b at an outdoor end portion and an indoor surface portion 12e at an indoor end portion. From the surface part 12e, the indoor extension part 12f extended to the indoor side is formed. The indoor extension portion 12 f is in contact with the inner peripheral surface of the frame material 3.

  The new frame 2 is formed by arranging a new upper frame 20 and a new lower frame 21 which are horizontal frames, and left and right new vertical frames 22 and 22 which are vertical frames in a rectangular shape. It is attached so as to cover the inner peripheral surface. The new upper frame 20, the new lower frame 21, and the new vertical frame 22, which are frame members constituting the new frame 2, are each transported to the site in the state of the frame material and attached to the existing frame 1. The mounting structure and process will be described later.

  The new upper frame 20 includes an inner peripheral surface portion 20a that is opposed to cover the inner peripheral surface portion 10a of the existing upper frame 10, and the inner peripheral surface portion 20a has an outdoor surface portion 20b at an outdoor end portion and an indoor surface portion 20e at an indoor end portion. An outer guide fin 20c and an intermediate surface portion 20d are provided between the outdoor surface portion 20b and the indoor surface portion 20e.

  The outer guide fin 20c guides the upper side of the outer folder housed in the new frame 2 in the longitudinal direction. The intermediate surface portion 20 d has an airtight material 20 g at the tip portion, and the airtight material 20 g abuts against the indoor side surface of the shoji that is housed in the new frame 2. Further, the inner pouch placed in the new frame 2 is guided by a concave portion formed by the intermediate surface portion 20d, the indoor surface portion 20e, and the inner peripheral surface portion 20a. The new upper frame 20 is fixed to the existing upper frame 10 with screws by an inner peripheral surface portion 20a between the intermediate surface portion 20d and the indoor surface portion 20e.

  The outdoor surface portion 20b, the outer guide fin 20c, the intermediate surface portion 20d, and the indoor surface portion 20e of the new upper frame 20 are formed such that the tip positions are substantially the same as the tip position of the indoor surface portion 10d of the existing upper frame 10. Yes. That is, since the new upper frame 20 is prevented from projecting to the inner peripheral side with respect to the existing upper frame 10, the opening of the sash can be prevented from being narrowed by the new upper frame 20.

  The inner peripheral surface portion 20 a of the new upper frame 20 has a plurality of protruding contact pieces 20 f on the surface facing the inner peripheral surface portion 10 a of the existing upper frame 10. Each of the contact pieces 20f comes into contact with the inner peripheral surface portion 10a of the existing upper frame 10, and the new upper frame 20 can be stably fixed to the existing upper frame 10.

  The newly installed lower frame 21 includes an inner peripheral surface portion 21a formed so as to be opposed and formed in a stepped shape so as to cover the inner peripheral surface portion 11a of the existing lower frame 11, and the inner peripheral surface portion 21a has an outer rail portion 21b on the upper surface. While having the inner rail part 21c, it has the indoor surface part 21d in the indoor edge part. The outer rail portion 21b and the inner rail portion 21c guide the external shoji and the inner shoji that are housed in the new frame 2, respectively.

  An outdoor protrusion 21g that protrudes upward is formed at the outdoor end portion of the new lower frame 21, and a hanging piece 21h that extends downward is formed. The outdoor protrusion 21g is a rail that guides the screen door with the outdoor surface portion 20b of the newly installed upper frame 20. The hanging piece 21h is opposed to the lower end portion of the existing lower frame 11 at the lower end portion of the new frame 2, and is fixed by screwing.

  In the new lower frame 21, the most protruding portions on the inner peripheral side are the front end portions of the inner rail portion 21c and the indoor surface portion 21d. These are the front end of the indoor surface portion 11e of the existing lower frame 11 and the indoor extension portion 11f. It is formed so as to be substantially the same position as the position. That is, since the newly installed lower frame 21 is prevented from projecting to the inner peripheral side with respect to the existing lower frame 11 in the same manner as the newly installed upper frame 20, the opening of the sash is not narrowed by the newly installed lower frame 21. Can do.

  The inner peripheral surface portion 21a of the new lower frame 21 has a contact piece 21e in the vicinity of the outer rail portion 21b, similar to the new upper frame 20, while the inner rail portion 11c in the vicinity of the inner rail portion 21c is connected to the inner rail portion 11d of the existing lower frame 11. It has an inner rail engaging portion 21f that engages with the inner rail. As a result, the new lower frame 21 comes into contact with and engages with the existing lower frame 11.

  The new vertical frame 22 has different shapes on the left and right. Each of the left and right new vertical frames 22 includes an inner peripheral surface portion 22a that is opposed to cover the inner peripheral surface portion 12a of the existing vertical frame 12, and the inner peripheral surface portion 22a has an outdoor outer surface portion 22b at an outdoor end portion and an indoor end portion. It has an indoor surface portion 22f. Further, intermediate pieces 22e are respectively formed at the indoor and outdoor intermediate positions of the inner peripheral surface portion 22a.

  In the new vertical frame 22 on the left side in the figure, which is the side on which the external shoji is arranged, an outdoor fin portion 22c is formed between the outdoor surface portion 22b and the intermediate piece 22e, and this is swallowed by the side surface portion of the external shoji. On the other hand, the new vertical frame 22 on the right side in the figure, which is the side on which the shoji is arranged, has an indoor fin portion 22d formed between the intermediate piece 22e and the indoor surface portion 22f, and this is swallowed by the side surface portion of the napus child. .

  The newly installed vertical frame 22 on the side where the external shoji is arranged is fixed to the existing vertical frame 12 with screws with an inner peripheral surface portion 22a between the intermediate piece 22e and the indoor surface portion 22f. The newly installed vertical frame 22 on the side where the inner pouch is arranged is screwed and fixed from the inner peripheral side to the existing vertical frame 12 at the inner peripheral surface portion 22a between the outdoor surface portion 22b and the intermediate piece 22e.

  In the new vertical frame 22, the positions of the front end portions of the indoor surface portion 22f and the outdoor surface portion 22b that protrude most to the inner peripheral side are arranged slightly on the inner peripheral side from the front end of the indoor surface portion 12e of the existing vertical frame 12. In other words, the opening width of the newly installed vertical frame 22 is slightly narrower than that of the existing vertical frame 12, but the width is small so that the size of the sash opening is not significantly affected.

  The inner peripheral surface portion 22a of the newly installed vertical frame 22 includes a plurality of contact pieces 22g on the surface facing the existing vertical frame 12, and these abut against the inner peripheral surface portion 12a of the existing vertical frame 12 for stable fixation. I try to make it.

  Next, the attachment structure of the new frame 2 to the existing frame 1 will be described in detail. In FIG. 3, the front view of the existing frame 1 and the new frame 2 is shown. Corner parts 30 are respectively provided on the inner peripheral surfaces of the four corners of the existing frame 1 so as to be sandwiched between the new frame 2. The corner part 30 is provided in order to secure airtightness between the existing frame body 1 and the new frame body 2 and to firmly fix both. In particular, since the new frame 2 has a structure in which the frame members are not connected to each other, it is necessary to ensure airtightness at the corner portion by the corner component 30.

  Two corner parts 30 are provided at the corners formed by the existing upper frame 10 and the existing vertical frame 12, and are the upper corner parts 31, and are provided at the corners formed by the existing lower frame 11 and the existing vertical frame 12. The two provided are the lower corner parts 32, which are different in shape. 4 shows a perspective view of the upper corner part 31 as seen from two directions, and FIG. 5 shows a perspective view of the lower corner part 32 as seen from two directions.

  As shown in FIGS. 4A and 4B, the upper corner component 31 includes a lateral contact portion 31a that contacts the inner peripheral surface portion 10a of the existing upper frame 10 and an inner periphery of the existing vertical frame 12. A vertical abutting portion 31b that abuts against the surface portion 12a is formed in a substantially L shape. As shown in FIG. 4A, the vertical contact portion 31b is formed in a flat shape on the inner peripheral side so that the end surface of the new upper frame 20 and the outer peripheral surface of the new vertical frame 22 can contact each other. Has been. Further, the lateral contact portion 31a is also formed so that the outer peripheral surface of the end portion of the new upper frame 20 can be contacted.

  As shown in FIG. 4B, a seal member 31c is provided on the outer peripheral side of the upper corner part 31 so as to extend from the lateral contact portion 31a to the vertical contact portion 31b. The seal member 31c ensures airtightness between the lateral contact portion 31a and the existing upper frame 10 and between the vertical contact portion 31b and the existing vertical frame 12. Although not shown, a seal member may be provided on the inner peripheral side of the vertical contact portion 31b with which the end surface of the new upper frame 20 contacts.

  As shown in FIGS. 5A and 5B, the lower corner part 32 has a lateral contact portion 32 a that contacts the inner peripheral surface portion 11 a of the existing lower frame 11, and an inner periphery of the existing vertical frame 12. It is formed so as to protrude from the vertical contact portion 32b that contacts the surface portion 12a. As shown in FIG. 5A, the vertical contact portion 32b is formed in a flat shape on the inner peripheral side so that the end surface of the new lower frame 21 and the outer peripheral surface of the new vertical frame 22 can contact each other. Has been. Further, the lateral contact portion 31a is formed such that the upper surface is inclined in accordance with the shape of the inner peripheral surface portion 21a of the newly installed lower frame 21, so that the outer peripheral surface of the newly installed lower frame 21 can be contacted. Has been.

  As shown in FIG. 5B, a seal member 32 c is provided on the outer peripheral side of the lower corner part 32. In this figure, only the vertical contact portion 32b side appears, but the seal member 32c is provided so as to extend from the vertical contact portion 32b to the lateral contact portion 31a. Further, a seal member (not shown) may be provided on the inner peripheral side of the vertical contact portion 32b with which the end surface of the newly installed lower frame 21 contacts.

  In FIG. 6, the perspective view of the state which attached the upper corner component 31 with respect to the existing frame 1 is shown. As shown in this figure, the upper corner component 31 is attached to a corner corner portion formed by the existing upper frame 10 and the existing vertical frame 12 of the existing frame 1. The lateral contact portion 31a and the longitudinal contact portion 31b are in contact with the existing upper frame 10 and the existing vertical frame 12, respectively, and the seal member 31c provides airtightness therebetween. In addition, since screw holes are formed in the lateral contact portion 31a and the longitudinal contact portion 31b, screws are fixed to the existing upper frame 10 and the existing lower frame 11, respectively.

  In FIG. 7, the perspective view of the state which attached the newly installed upper frame 20 with respect to the existing frame 1 is shown. As shown in this figure, the end surface of the new upper frame 20 is abutted against the vertical contact portion 31 b of the upper corner part 31, and airtightness with the existing vertical frame 12 is ensured. Further, the outer peripheral surface of the end portion of the new upper frame 20 is in contact with the lateral contact portion 31 a of the upper corner component 31.

  In FIG. 8, the perspective view of the state which attached the lower corner component 32 with respect to the existing frame 1 is shown. As shown in this figure, the lower corner part 32 is attached to a corner corner portion formed by the existing lower frame 11 and the existing vertical frame 12 of the existing frame 1. The horizontal contact portion 32a and the vertical contact portion 32b are in contact with the existing lower frame 11 and the existing vertical frame 12, respectively, and the seal member 32c provides airtightness therebetween.

  In FIG. 9, the perspective view of the state which attached the newly installed lower frame 21 with respect to the existing frame 1 is shown. As shown in this figure, the end surface of the newly installed lower frame 21 is abutted against the vertical contact portion 32 b of the lower corner part 32, thereby ensuring airtightness with the existing vertical frame 12. Further, the outer peripheral surface of the end portion of the newly installed lower frame 21 is in contact with the lateral contact portion 32 a of the lower corner part 32.

  In attaching the new frame 2, it is necessary to first cut a part of the existing frame 1. FIG. 10 is a cross-sectional view showing notched portions of the existing upper frame 10 and the existing lower frame 11, and FIG. 11 is a cross-sectional view showing the notched portions of the existing vertical frame 12. In these drawings, the hatched portion is a cut-out portion.

  As shown in FIG. 10, the existing upper frame 10 has an outdoor surface portion 10b and an intermediate surface portion 10c on the inner peripheral surface portion 10a in addition to the configuration described above. These are cut out from the root. In addition to the configuration described above, the existing lower frame 11 has an outer rail portion 11c on the inner peripheral surface portion 11a, and an outdoor protrusion 11b for guiding the screen door is formed at the outdoor end portion. These are also cut off from the base.

  As shown in FIG. 11, the existing vertical frame 12 on the left side in the drawing, which is the side where the shoji is placed, has an outdoor surface portion 12 b and an outdoor fin portion 12 c on the inner peripheral surface portion 12 a in addition to the configuration described above. ing. In addition, the existing vertical frame 12 on the right side in the drawing, on the side where the inner shoji is arranged, has an outdoor surface portion 12b and an indoor fin portion 12d on the inner peripheral surface portion 12a in addition to the configuration described above. These are also cut off from the base.

  When a part of the existing frame 1 is cut out, the upper corner part 31 and the lower corner part 32 are attached to the existing frame 1 as shown in FIGS. 6 and 8, and the new upper frame 20 is attached to the left and right upper corner parts 31. In the middle, the new lower frame 21 is arranged between the left and right lower corner parts 32. In this way, the end faces of the newly installed upper frame 20 and the newly installed lower frame 21 are brought into contact with the upper corner component 31 and the lower corner component 32, respectively. As a result, the new upper frame 20 and the new lower frame 21 are in contact with the corner part 30 at their end surfaces and outer peripheral surfaces at both ends. In this state, the new vertical frame 22 is disposed between the new upper frame 20 and the new lower frame 21.

  In FIG. 12, the perspective view of the state which attached the newly installed vertical frame 22 with respect to the existing frame 1 is shown. As shown in this figure, the new vertical frame 22 is attached so as to pass between the new upper frame 20 and the new lower frame 21. At this time, the outer peripheral surfaces of both ends of the newly installed vertical frame 22 are in contact with the vertical contact portion 31b of the upper corner component 31 and the vertical contact portion 31b of the lower corner component 32, respectively. In the state where the frame members of the new frame 2 are attached to the existing frame 1 in this way, the existing upper frame 10 and the existing vertical frame 12 are respectively installed from the inner peripheral surface side with respect to the new upper frame 20 and the new vertical frame 22. Are fixed with screws. The new lower frame 21 is not fixed from the inner peripheral surface side, but is screwed to the existing lower frame 11 from the hanging piece 21h at the lower end.

  As described above, the corner parts 30 are respectively arranged on the inner peripheral surfaces of the four corners of the existing frame body 1, and each frame material constituting the new frame body 2 is in contact with the corner parts 30 at both ends, respectively. Since the corner part 30 having a simple configuration can secure the airtightness in the corner portion of the new frame 2, the fixing strength of each frame member of the new frame 2 with respect to the existing frame 1 can be secured. Can be bigger. And since the new frame 2 is not pre-framed, it is configured so that each frame member is attached to the existing frame 1 after the corner parts 30 are provided on the existing frame 1. The new frame 2 can be transported from the factory to the site in the state of the frame material, and the transport efficiency can be improved. Further, since it is not necessary to provide a screw hole or the like for framing the new frame 2, the degree of freedom in designing the cross-sectional shape of the new frame 2 is large, and the new frame 2 is as far as possible on the inner circumference side of the existing frame 1. Since it can be designed not to protrude, the opening width of the sash can be made as narrow as possible.

  Next, a second embodiment of the present invention will be described. FIG. 13 shows a longitudinal sectional view of the modified sash according to the second embodiment, and FIG. 14 shows a transverse sectional view of the modified sash according to the second embodiment. The existing frame 1 of the present embodiment is the same as the existing frame 1 of the first embodiment, and the new frame 2 is the same as the first embodiment with respect to the new upper frame 20 and the new vertical frame 22. is there. On the other hand, the new lower frame 21 of the present embodiment is different from the new lower frame 21 of the first embodiment in that the upper surface position is substantially flush across the room. That is, the refurbished sash of the present embodiment is configured as a lower frame flat sash.

  In the new frame 2, the new upper frame 20 and the new vertical frame 22 are configured in the same manner as in the first embodiment, and a description thereof will be omitted. The newly installed lower frame 21 includes an inner peripheral surface portion 21a that faces and covers the inner peripheral surface portion 11a of the existing lower frame 11, and the inner peripheral surface portion 21a has a concave outer locking portion 21i and an internal member respectively on the outside and inside. A stop 21j is formed. An outer rail member 23 is engaged with the outer locking portion 21i, and an inner rail member 24 is engaged with the inner locking portion 21j.

  The lower portion of the outer rail member 23 is an engaging portion 23a that can be engaged with the outer locking portion 21i, and a convex rail portion 23b that guides the shoji is formed on the upper surface. The lower portion of the inner rail member 24 is an engaging portion 24a that can be engaged with the inner locking portion 21j, and a convex rail portion 24b that guides the inner shoji is formed on the upper surface. The upper surface positions of the outer rail member 23 and the inner rail member 24 are substantially the same as the indoor extending portion 11 f of the existing lower frame 11.

  In such a lower frame flat sash, corner parts 30 are provided at the four corners of the existing frame 1. In FIG. 13 and FIG. 14, the corner part 30 is represented by a broken line. About the upper corner component 31, the same thing as 1st Embodiment is used. The lower corner parts 32 are formed so as to conform to the end face shape of the newly installed lower frame 21 of the present embodiment, and both end faces of the newly installed lower frame 21 are in contact with the vertical contact portions 32b of the lower corner part 32, respectively.

  As described above, even in the configuration of the lower frame flat sash, the corner parts 30 are disposed at the four corners of the existing frame 1, and each frame member constituting the new frame 2 is fixed to the existing frame 1. The configuration of the present invention can be employed.

  Although the embodiment of the present invention has been described above, the application of the present invention is not limited to this embodiment, and can be applied in various ways within the scope of its technical idea.

DESCRIPTION OF SYMBOLS 1 Existing frame 2 New frame 3 Frame material 10 Existing upper frame 11 Existing lower frame 12 Existing vertical frame 20 New upper frame 21 New lower frame 22 New vertical frame 30 Corner part 31 Upper corner part 31a Lateral contact part 31b Vertical contact Contact portion 31c Seal material 32 Lower corner part 32a Lateral contact portion 32b Vertical contact portion 32c Seal material

Claims (5)

In a renovated sash having a new frame attached so as to cover the inner peripheral surface of an existing frame attached to a building opening,
Corner parts are disposed between the four corner inner peripheral surfaces of the existing frame and the frame material constituting the new frame, and the corner parts abut on the inner peripheral surface of the existing frame, and the new frame Each of the frame members constituting each of the frame members is in contact with the corner part and fixed to each frame member constituting the existing frame body.   The refurbished sash according to claim 1, wherein the corner part has an abutting surface portion with which an end surface of a frame material constituting the newly installed frame body abuts.   The refurbished sash according to claim 2, wherein a sealing material is disposed between the contact surface portion and the existing frame body.   The corner part has a horizontal contact portion that contacts an existing horizontal frame that constitutes the existing frame body, and a vertical contact portion that contacts an existing vertical frame that constitutes the existing frame body, and the horizontal contact portion The at least one of a part and a vertical contact part is fixed with respect to the said existing frame, The remodeling sash of any one of Claims 1-3 characterized by the above-mentioned. In the sash refurbishment method of attaching a new frame consisting of a new horizontal frame and a new vertical frame so as to cover the inner peripheral surface of the existing frame attached to the opening of the building,
Corner parts are attached to the inner peripheral surfaces of the four corners of the existing frame body, both end surfaces of the new horizontal frame are brought into contact with the corner parts, and outer peripheral surfaces of both end portions of the new horizontal frame are brought into contact with the corner parts, respectively. The new vertical frame is abutted against the inner peripheral surface of the new horizontal frame, the outer peripheral surfaces of both ends of the new vertical frame are brought into contact with the corner parts, respectively, and at least of the new vertical frame and the new horizontal frame A method for refurbishing a sash, characterized in that a new horizontal frame on the upper side is fixed with screws to the existing frame body from the inner peripheral surface side.

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