JP4761860B2 - Sash window frame device for repair - Google Patents

Description

  When renovating a window device provided in an opening of a building such as a general house or a condominium with a new structure, the present invention provides a new inside of an existing window frame fixed to the inner periphery of the opening. The present invention relates to an improvement of a sash window frame device for repair that fixes a sash window frame.

  When renovating an old window device that is inferior in terms of soundproofing and airtightness, etc., to a new window device with excellent performance, this new window device is incorporated without modifying the wall provided with the window opening. The construction method is described in Patent Document 1 and the like, and has been widely practiced conventionally. In this method, a new sash window frame, which is a repair sash window frame device, is fixed inside the existing sash window frame with the existing sliding door shoji removed, and a new sliding door is installed inside the new sash window frame. Build paper shoji. 6 to 9 show two examples of the structure of a conventionally-known repair sash window frame device described in Patent Document 1. FIG.

  First, in the structure of the first example shown in FIGS. 6 to 7, a new upper frame 5 A new sash window frame 8 composed of a new lower frame 6 and left and right new saddle frames 7 is fixed in a state of largely protruding from the inner peripheral surface of the existing sash window frame 4. In the case of the first example having such a conventional structure, the opening area of the new sash window frame 8 becomes narrow, which is disadvantageous in terms of lighting and ventilation. In addition, since the new lower frame 6 largely protrudes upward from the upper surface of the existing lower frame 2, when the window opening is a sweep window, the new lower frame 6 passes through the sweep window, This tends to be an obstacle to things that are taken in and out of the sweep window.

  On the other hand, in the structure of the second example shown in FIGS. 8 to 9, the existing upper frame 5a, new lower frame 6a, and left and right new eaves frames 7a and 7a constituting the new sash window frame 8a are provided. The amount of protrusion from the inner side surfaces of the existing upper frame 1a, the existing lower frame 2a, and the left and right existing eaves frames 3a, 3a constituting the sash window frame 4a is kept small. Such a structure of the second example is advantageous in terms of securing lighting, ventilation, etc., and preventing obstacles to human traffic and taking in and out of objects, but not necessarily in terms of securing the mounting strength of the new lower frame 6a. That's not enough. This point will be described with reference to the lower half of FIG.

  The new lower frame 6a is coupled and fixed to the existing lower frame 2a through an indoor-side attachment 9 having a U-shaped cross section that is open at the lower side and an outdoor-side attachment 10 having an L-shaped cross section. Among these, the indoor attachment 9 has a part of the indoor side surface (the right side surface in FIGS. 1, 2, 4, 6, 8 and the lower side surface in FIGS. 3, 5, 7, 9) on the upper surface of the existing lower frame 2a. Screwed in from the outdoor side (left side of FIGS. 1, 2, 4, 6, and 8, upper side of FIGS. 3, 5, 7, and 9) in a state of abutting against the outdoor side surface of the protruding indoor lower guide rail 11 The indoor side lower guide rail 11 is coupled and fixed by a screw 12a. The outdoor attachment 10 has a part of the lower surface projecting from the outdoor lower guide rail 15 projecting from the upper surface of the existing lower frame 2a, on the outdoor side end upper surface of the existing lower frame 2a. It is fixedly coupled to the upper surface of the outdoor side end of the existing lower frame 2a by screws 12b that are brought into contact with each other and screwed from above.

  Furthermore, the said new lower frame 6a couple | bonds and fixes the indoor side and the outdoor side both ends with the said indoor side and the outdoor side attachments 9 and 10 by screwing. That is, with the lower surface of the indoor side end portion of the new lower frame 6a in contact with the upper surface of the indoor attachment 9, it is coupled and fixed to the indoor attachment 9 by the screw 13a screwed from above. In the state where the outdoor side end of the new lower frame 6a is abutted against the outdoor attachment 10 via the sealing material 14, it is coupled and fixed to the outdoor attachment 10 with a screw 13b screwed from the outdoor side. Yes.

  In the case where the new lower frame 6a is coupled to the existing lower frame 2a shown in the lower part of FIG. 8 as described above, the new lower frame is caused by wind blowing on the sliding door shoji built in the new sash window frame 8a. When a force directed toward the indoor side (rightward in FIG. 8) is applied to 6a, there is no particular problem in strength. On the other hand, when the wind blows along the sliding door shoji, etc., negative pressure is applied to the outdoor side surface of the sliding door shoji, and the force toward the outdoor side (leftward in FIG. 8) is applied to the new lower frame 6a. If added, there will be a problem in strength at the connecting and fixing portion by the screws 12a and 13b screwed from the outdoor side.

  That is, the sliding door shoji is pulled to the outdoor side by the negative pressure, the indoor side and the outdoor side both lower guide rails 11a provided on the upper surface of the door wheel and the new lower frame 6a provided at the lower portion of the sliding door shoji, When a force directed to the outdoor side is applied to the new lower frame 6a due to the engagement with 15a, the screws 12a and 13b support this force. Of these, the strength of the screwed portion of the screw 13b screwed to the outdoor attachment 10 can be secured to some extent by increasing the thickness dimension of the outdoor attachment 10.

  On the other hand, since the indoor attachment 9 is coupled and fixed to the indoor lower guide rail 11, it is difficult to ensure the strength of the screwed portion of the screw 12a screwed to the indoor lower guide rail 11. This is because the indoor lower guide rail 11 is originally provided for guiding a door wheel provided on the sliding door shoji side, and is intended to ensure the strength of the screwed portion of the screw 12a. This is because is not considered. That is, the thickness dimension of the indoor side lower guide rail 11 can ensure the strength to support the weight of the sliding door shoji, and is a value that is less than the two pitches of the screw 12a, which is a tapping screw, for example. . For this reason, when the screw 12a is pulled to the outdoor side through the new lower frame 6a and the indoor attachment 9, the screw 12a forms a (tapping) screw hole formed in the indoor lower guide rail 11. There is a possibility of breakage and the state of being able to come out of this screw hole. And when it will be in the state which can be pulled out, it is only the screwing part of the screw 13b screwed to the said outdoor side attachment 10 that the said new lower frame 6a displaces to the outdoor side with respect to the said existing lower frame 2a. Therefore, a large force is applied to the screwing portion. Regardless of such a large force, in order to prevent the screwed portion from being damaged, it is necessary to use the outdoor attachment 10 having a considerably large thickness, which reduces the cost, etc. This is not preferable.

JP 2003-328645 A

  In view of the circumstances as described above, the present invention is a modification that can sufficiently support the force applied to the new lower frame when the sliding door shoji is pulled to the outdoor side without particularly increasing the thickness dimension of each component. It invented in order to implement | achieve the structure of the sash window frame apparatus.

The sash window frame device for refurbishment of the present invention is similar to the conventionally known sash window frame device for refurbishment, and includes an existing upper frame and an existing lower frame fixed to the inner peripheral edge of the opening of the building. A new sash window frame composed of a new upper frame, a new lower frame, and a left and right new frame is fixed inside an existing sash window frame composed of left and right existing frame frames.
In particular, in the sash window frame device for refurbishment of the present invention, the upper indoor side surface of the lower guide rail protruding from the upper surface of the existing lower frame, and the new lower frame or the new lower frame are coupled. The upper side of the lower guide rail and the hanging wall portion are made to abut or approach the outdoor side surface of the hanging wall portion that is fixed to the lower surface of another member such as an attachment that is fixed in the indoor or outdoor direction. The new lower frame or the other member is engaged with the existing lower frame in a state of preventing displacement to the outdoor side. In addition, the new lower frame is fixed to the existing lower frame by screwing directly above or through the other members above the existing lower frame .

  According to the sash window frame device for repair of the present invention configured as described above, it is possible to sufficiently support the force applied to the new lower frame when the sliding door shoji is pulled to the outdoor side. That is, a new lower frame, or a hanging wall part suspended from the lower surface of another member such as an attachment that is coupled and fixed to the new lower frame, and an upper part of the lower guide rail projecting from the upper surface of the existing lower frame It is possible to prevent the new lower frame or the other member from being displaced to the outdoor side based on the engagement. Since the length of the engaging portion between the hanging wall portion and the lower guide rail can be sufficiently secured, the force that prevents the new lower frame or the other member from being displaced to the outdoor side by the engaging portion. Can be big enough.

In carrying out the present invention, for example, as described in claim 2, the new lower frame is coupled and fixed to the existing lower frame via an attachment which is another member. At that time, the upper and lower surfaces of the attachment are brought into contact with the lower surface of the new lower frame and the upper surface of the existing lower frame, respectively. Then, the upper part of the lower guide rail protruding from the upper surface of the existing lower frame, which is disposed on the upper surface of the existing lower frame, and a hanging wall portion which is suspended on the lower surface of the attachment, the Atatchimentogaya Engage in a state that prevents displacement to the outside. The attachment is fixed to the existing lower frame with screws. Further, a coupling screw provided so as to penetrate the new lower frame downward from above is screwed into a part of the attachment so as to penetrate a part of the attachment downward from above. With this configuration, the new lower frame is coupled and fixed to the existing lower frame via the attachment.

  When carrying out the present invention, the attachment is omitted, a hanging wall portion is formed directly on the lower surface of the new lower frame, and the hanging wall portion is connected to the lower guide rail projecting from the upper surface of the existing lower frame. It can also be combined. In this case, a connecting screw for connecting and fixing the new lower frame to the attachment becomes unnecessary. However, since this attachment is omitted, the cross-sectional area of the new lower frame increases, and at the same time, the cross-sectional shape of the new lower frame becomes complicated, making it difficult to manufacture the new lower frame. If a structure in which a separately constructed new lower frame and an attachment are coupled and fixed by a coupling screw as in the structure described in claim 2 is adopted, the sectional area of the new lower frame and the attachment is reduced at the same time. Can be simplified. Then, it is possible to easily manufacture these new lower frame and attachment. The coupling screw is disposed in a direction perpendicular to the direction of the force applied to the new lower frame when the sliding door shoji is pulled to the outdoor side, and a sufficiently large outer diameter can be used. In addition, the thickness of the portion of the attachment to which the coupling portion is screwed can be sufficiently increased. For this reason, the coupling strength between the new lower frame and the attachment by the coupling screw can be increased to such an extent that the force can be sufficiently supported.

When the present invention is carried out, for example, as described in claim 3, the upper surface of the rising plate portion formed at the indoor side end of the existing lower frame is substantially the same as the floor surface of the building ( Be present at the same height (so as not to interfere with the elderly walking or wheelchair movement). And the upper end edge of the several protrusion containing the lower guide rail formed in the upper surface of a novel lower frame is made to exist in the same height position as the upper surface of the said standing board part.
If such a structure is implemented with respect to the sweep-out window, the existing window device having a large step at the lower side of the window opening can be modified to a so-called barrier-free window device that does not prevent elderly people from walking or moving the wheelchair. .

  1 to 5 show embodiments of the invention corresponding to all claims. The sash window frame device for repair of the present embodiment is constructed by incorporating a new sash window frame 8b indicated by a solid line in each figure inside an existing sash window frame 4b indicated by a chain line in each figure. Among these, the existing sash window frame 4b is a combination of an existing upper frame 1b, an existing lower frame 2b, and left and right existing eaves frames 3b and 3b, which are each made of an extruded material of an aluminum alloy, in a rectangular frame shape. It consists of Such an existing sash window frame 4b is fixed to the inner peripheral edge of the opening 16 of the building in advance (when the building is constructed). The new sash window frame 8b is a combination of a new upper frame 5b, a new lower frame 6b, and left and right new eaves frames 7b and 7b, each made of an aluminum alloy extruded mold, in a rectangular frame shape. It consists of

  Such a new sash window frame 8b includes the new upper frame 5b on the lower surface of the existing upper frame 1b, the new lower frame 6b on the upper surface of the existing lower frame 2b, and the new new frame frames 7b and 7b. It is built in the inside of the existing sash window frame 4b by being coupled and fixed to the inner side surfaces of the both existing frame frames 3b and 3b via attachments. The new upper frame 5b, the new lower frame 6b, and the both new frame frames 7b, 7b are combined into a rectangular frame before being built inside the existing sash window frame 4b, and the new frame The sash window frame 8b is set. Accordingly, the external dimensions of the new sash window frame 8b are set to be dimensions that can be inserted into the existing sash window frame 4b. The positioning of the two sash window frames 8b and 4b in a state where the new sash window frame 8b is inserted inside the existing sash window frame 4b is the lower side portion of both sash window frames 8b and 4b. I am trying. That is, the new lower frame 6b is placed on the upper surface of the existing lower frame 2b via the lower attachment 17 described later. The upper and lower surfaces of the lower attachment 17 are in contact with the lower surface of the new lower frame 6b and the upper surface of the existing lower frame 2b, respectively. Accordingly, there is no assembly gap between the lower frames 6b and 2b. On the other hand, since there are assembling gaps in the other three side portions (the remaining portions other than the lower side) of both the sash window frames 8b and 4b, these assembling gaps are separated by spacers having appropriate thickness dimensions. Blocking prevents rattling from occurring at the three sides.

  First, the upper attachment 18 is coupled and fixed to the lower surface of the existing upper frame 1b by a plurality of upper tapping screws 19, as shown in the upper part of FIG. The upper attachment 18 does not necessarily have to be provided over the entire length of the existing upper frame 1b, and a plurality of pieces may be provided at a plurality of locations. However, from the viewpoint of facilitating the assembly work and securing the strength, an aluminum alloy made of extruded material is preferably provided over the entire length of the lower surface of the existing upper frame 1b. In any case, the upper surface (upper edge) of the new upper frame 5 b is abutted against the lower surface of the upper attachment 18 via the upper spacer 20. Then, the second upper tapping screws 21 inserted through the indoor side end of the new upper frame 5b from below are screwed into the indoor side end of the upper attachment 18 and further tightened, whereby the new upper frame 5b is tightened. The upper frame 5 b is coupled and fixed to the lower surface side of the upper attachment 18.

  The upper spacer 20 may be provided on the lower surface side of the upper attachment 18 over the entire length, but a piece-like one may be provided in the vicinity of each second upper tapping screw 21. . When it is provided over the entire length, a through-hole for inserting each of the second upper tapping screws 21 is formed. In any case, the upper spacer 20 is selected from a plurality of types having different thickness dimensions and having an appropriate thickness dimension. As the second upper tapping screws 21 are tightened, the new upper frame 5b is coupled and fixed to the lower surface of the upper attachment 18 without rattling. The second upper tapping screw 21 is tightened between the indoor side end of the new upper frame 5b and the indoor side end of the existing upper frame 1b, and then the upper cover 22 is put on each of the second upper tapping screws 21. Cover the head of the two tapping screws 21 and the like.

  Even in the portion where the two new collar frames 7b, 7b are joined and fixed to the inner side surfaces of the both existing collar frames 3b, 3b, it is almost the same as the portion where the new upper frame 5b is joined to the lower surface of the existing upper frame 1b. It is constituted similarly. That is, as shown in FIG. 3, the side attachments 23 and 23 are coupled and fixed to the inner side surfaces of the both existing frame 3b and 3b by a plurality of side tapping screws 24 and 24, respectively. In addition, the new saddle frames 7b and 7b are abutted against the inner side surfaces of the both side attachments 23 and 23 via side spacers 25 and 25, respectively. Then, both the new saddle frames 7b and 7b are coupled and fixed to the both side attachments 23 and 23 without backlash by screwing and tightening the second side tapping screws 26 and 26, respectively. And each said 2nd side part tapping screw 26 is carried out by the side covers 27 and 27 covered between the inner edge part of both said existing collar frames 3b and 3b, and the inner edge part of both said novel collar frames 7b and 7b. , 26 heads and the like are covered.

  As described above, the new upper frame 5b is bonded to the lower surface of the existing upper frame 1b, and the both new frame frames 7b and 7b are bonded and fixed to the inner surfaces of the both existing frame frames 3b and 3b. The outdoor side packing 28 is sandwiched between the outdoor side end portions of the existing and new frames facing each other to keep the portions watertight. The outdoor side packing 28 is drawn in a free state. Similarly, an indoor packing 29 is sandwiched between the upper and side covers 22 and 27 and the existing upper frame 1b and the existing eaves frames 3b and 3b so as to keep the portions watertight. Yes. Each of the outdoor side and indoor side packings 28 and 29 viewed from the indoor and outdoor directions is a U-shape opened downward, and the upper end portions and the upper end portions of the left and right side edges are continuous. . It should be noted that the top edge of the seal lip 30 with the base end locked to the outer surface of the outdoor side end of the new upper frame 5b and the outdoor side end of both the new fence frames 7b, 7b is outside the building. It elastically contacts the inner peripheral edge of a surface layer material such as a tile covering the wall surface, and seals between the frames 5b and 7b and the surface layer material.

  Further, the new lower frame 6b is coupled and fixed to the upper surface of the existing lower frame 2b via the lower attachment 17 as shown in the lower part of FIG. 1 and FIG. The lower attachment 17 is made of an extruded material of an aluminum alloy, and has a lower surface shape that can be placed on the upper surface of the existing lower frame 2b without rattling and a length dimension that is substantially the same as that of the new lower frame 6b. A hanging wall portion 31 is formed in a portion closer to the indoor side than the indoor-side lower guide rail 11 provided on the upper surface of the existing lower frame 2b at the intermediate portion in the width direction of the lower surface of the lower attachment 17 as described above. Further, a groove-like locking groove 32 is formed at the indoor side edge of the lower attachment 17, and a lower chamber inner packing 33 is formed in the locking groove 32 over the entire length of the lower attachment 17. keeping. The lower room inner packing 33 is drawn in a free state. Further, a bent plate portion 34 that is bent downward in the vertical direction is formed on the outdoor side edge portion of the lower attachment 17. The thickness dimension of the lower half portion of the bent plate portion 34 is also made larger than the thickness dimension of the upper half portion.

  In order to couple and fix the lower attachment 17 as described above to the existing lower frame 2b, a plurality of positions of the inner side portion and the outdoor side portion of the intermediate room in the width direction are brought into contact with the upper surface of the existing lower frame 2b. By doing so, the lower attachment 17 is placed on the upper surface of the existing lower frame 2b. Further, the indoor side edge portion of the lower attachment 17 is abutted against the outdoor side surface of the rising plate portion 35 formed at the indoor side end portion of the existing lower frame 2b, and the inner surface of the upper half room of the bent plate portion 34 is Then, it is brought into contact with the outdoor side edge of the existing lower frame 2b. Further, the outdoor side surface of the hanging wall portion 31 is brought into contact with or close to the inner side surface of the upper end room of the indoor side lower guide rail 11. In this state, the lower tapping screw 37 inserted through the step plate 36 formed in the middle portion of the lower attachment 17 from the outdoor side to the indoor side is attached to the outdoor side lower guide rail 15 on the upper surface of the existing lower frame 2b. Screw together and tighten further. Then, the lower attachment 17 is coupled and fixed to the upper surface of the existing lower frame 2b. In this state, the abutting portion between the indoor side edge of the lower attachment 17 and the outdoor side surface of the rising plate portion 35 of the existing lower frame 2 b is sealed by the lower room inner packing 33.

  As described above, the new lower frame 6b is coupled and fixed to the upper surface of the lower attachment 17 which is coupled and fixed to the upper surface of the existing lower frame 2b. Therefore, the lower surface of the new lower frame 6b has a shape that can be placed on the upper surface of the lower attachment 17 without rattling. Further, in the state where the indoor side edge of the new lower frame 6b is abutted against the opposite side portion of the locking groove 32 at the indoor side end of the lower attachment 17, the lower outdoor portion of the new lower frame 6b. The indoor side surface of the mounting plate portion 38 formed in this manner is in contact with the outdoor side surface of the bent plate portion 34 of the lower attachment 17.

  In order to couple and fix the new lower frame 6b to the lower attachment 17, the lower portion of the mounting plate portion 38 is inserted from the outdoor side to the indoor side while being placed on the upper surface of the lower attachment 17 as described above. The second lower tapping screw 39 is screwed into the lower half portion of the bent plate portion 34 and further tightened. Further, a third lower tapping screw 40, which is a coupling screw described in the claims, inserted through the intermediate portion in the width direction of the new lower frame 6 b from above to the intermediate portion in the width direction of the lower attachment 17. Screw together and tighten further. In this way, the new lower frame 6b is coupled and fixed to the upper surface of the lower attachment 17 by a plurality of second and third lower tapping screws 39 and 40, respectively. In this manner, in a state where the new lower frame 6b is coupled and fixed to the upper surface of the existing lower frame 2b via the lower attachment 17, a gap between the indoor side ends of the lower frames 6b and 2b is formed. Is closed by a second lower room inner side packing 41 which is locked to the indoor side edge of the new lower frame 6b. Not only the portion where the second lower tapping screw 39 is screwed in the lower half of the bent plate portion 34, but also the portion where the third lower tapping screw 40 is screwed in the intermediate portion in the width direction of the lower attachment 17. Even thicker than the other parts.

  As described above, the upper surface of the new lower frame 6b, which is coupled and fixed to the upper surface of the existing lower frame 2b via the lower attachment 17, that is, including both the indoor side and outdoor side lower guide rails 11b and 15b, The height position of the upper edge of the ridge of the book is matched with the height position of the upper surface of the rising plate portion 35 formed at the indoor side end of the existing lower frame 2b. The upper surface of the rising plate portion 35 coincides with the floor surface of the building from the time of construction of the building (when the existing sash window frame 4b is installed). Therefore, the height position of the upper surface of the new lower frame 6b is substantially at the same height position as the floor surface of the building (to the extent that it does not hinder elderly people's walking and wheelchair movement). Become. In the case of this embodiment, the grating 42 is coupled and fixed to the outdoor side surface of the new lower frame 6b, and the upper surface of the new lower frame 6b and the upper surface of the raised floor 43 installed on the upper surface of a veranda or the like are smooth. It is made to continue. That is, the upper surface of the raised floor 43 and the floor surface of the building, which are present at the same height position, are smoothly continued by the upper surface of the new lower frame 6 and the grating 42.

  According to the structure of the present embodiment configured as described above, a sufficient force is applied to the new lower frame 6b when the sliding door screens 44a and 44b built in the new sash window frame 8b are pulled to the outdoor side. Can be supported. That is, as described above, depending on the wind direction during strong winds, the sliding door screens 44a and 44b are pulled to the outdoor side. And the force applied to each of these sliding door shojis 44a and 44b is via the door wheels 45 and 45 provided on the lower side of each of these sliding door shojis 44a and 44b and the indoor side and outdoor side both lower guide rails 11b and 15b. To the new lower frame 6b. Further, the force transmitted to the new lower frame 6 b is transmitted to the lower attachment 17 through the second and third lower tapping screws 39 and 40.

  The third lower tapping screw 40 that joins the new lower frame 6b and the lower attachment 17 has a force applied to the new lower frame 6b when the sliding door shojis 44a and 44b are pulled to the outdoor side. It is possible to use one having a sufficiently large outer diameter, which is disposed in the vertical direction which is perpendicular to the direction. Further, the thickness of the portion of the lower attachment 17 where the third lower tapping screw 40 is screwed can be sufficiently increased. For this reason, the coupling strength between the new lower frame 6b and the lower attachment 17 by the third lower tapping screw 40 can be increased to such a level that the force can be sufficiently supported. In the case of this embodiment, the thickness dimension of the portion where the second lower tapping screw 39 is screwed in the lower half of the bent plate portion 34 provided at the outdoor side end portion of the lower attachment 17 is increased. is doing. For this reason, the coupling strength by the second lower tapping screw 39 can be secured to some extent. Therefore, the support strength and support rigidity of the new lower frame 6b with respect to the lower attachment 17 can be sufficiently increased.

  In order to further improve the bonding strength between the new lower frame 6b and the lower attachment 17 with respect to the force directed to the outdoor side, a part of the lower attachment 17 is shown as shown by a chain line in FIG. The protrusions 46a and 46b may be provided on the upper surface, and the indoor side surface of the protrusions 46a and 46b may be engaged with the partial outdoor side surface of the new lower frame 6b. However, in this case, the new lower frame 6b and the lower attachment 17 can be combined by shortening or omitting the horizontal protrusions 47a and 47b provided on the new lower frame 6b and the lower attachment 17, for example. To do.

  Further, the force directed to the outdoor side transmitted from the new lower frame 6b to the lower attachment 17 is applied to the outdoor side surface of the hanging wall portion 31 suspended from the lower surface of the attachment 17, and the existing lower frame 2b. It is transmitted to the existing lower frame 2b based on the engagement with the upper indoor side surface of the indoor side lower guide rail 11 protruding from the upper indoor portion. Since the existing lower frame 2b is firmly bonded and fixed to the upper surface of the lower edge of the opening 16, the existing lower frame 2b is not displaced to the outdoor side. As a result, the new lower frame 6b and the above-described lower frame 2b It is possible to prevent the lower attachment 17 from being displaced to the outdoor side. The hanging wall 31 and the indoor lower guide rail 11 are provided over the entire length of the lower attachment 17 and the existing lower frame 2b, and the hanging wall 31 and the indoor lower guide are provided. The length of the engaging portion with the rail 11 is sufficiently large. For this reason, the force which prevents that the said lower attachment 17 displaces to the outdoor side by this engaging part can be fully enlarged. As shown by a chain line in FIG. 2, a second hanging wall portion 48 is provided on the lower surface of the intermediate portion in the width direction of the lower attachment 17, and the outdoor side surface of the second hanging wall portion 48 and the upper surface of the existing lower frame 2b. It is also possible to engage the upper indoor side surface of the outdoor side lower guide rail 15 formed in the above.

  In the case of the present embodiment, as shown in FIG. 4, the present invention is implemented with respect to the sweep window, and the upper surface of the new lower frame 6b and the upper surface of the raised floor 43 installed on the upper surface of a veranda or the like are provided. Since it continues smoothly, the existing window device having a large step at the lower side of the opening 16 can be modified to a so-called barrier-free window device that does not hinder elderly people's walking and wheelchair movement.

1 is a longitudinal side view showing an embodiment of the present invention. The lower enlarged view of FIG. The cross-sectional top view which shows the Example of this invention. The lower longitudinal side view which shows the barrier-free window apparatus comprised by the structure of a present Example. Similarly a cross-sectional plan view. The longitudinal side view which shows the 1st example of a conventional structure. Similarly a cross-sectional plan view. The vertical side view which shows the 2nd example of conventional structure. Similarly a cross-sectional plan view.

Explanation of symbols

1, 1a, 1b Existing upper frame 2, 2a, 2b Existing lower frame 3, 3a, 3b Existing gutter frame 4, 4a, 4b Existing sash window frame 5, 5a, 5b New upper frame 6, 6a, 6b New lower frame 7, 7a, 7b New fence frame 8, 8a, 8b New sash window frame 9 Indoor attachment 10 Outdoor attachment 11, 11a, 11b Indoor lower guide rail 12a, 12b Screw 13a, 13b Screw 14 Sealing material 15, 15a 15b Outdoor side lower guide rail 16 Opening 17 Lower attachment 18 Upper attachment 19 Upper tapping screw 20 Upper spacer 21 Second upper tapping screw 22 Upper cover 23 Side attachment 24 Side tapping screw 25 Side spacer 26 Second side Tapping screw 27 Side cover 28 Outdoor packing 29 Indoor side Kicking 30 Sealing lip 31 Hanging wall portion 32 Locking groove 33 Packing inside lower room 34 Bending plate portion 35 Standing plate portion 36 Step plate portion 37 Lower tapping screw 38 Mounting plate portion 39 Second lower tapping screw 40 Third lower tapping screw 41 Second lower room inner packing 42 Grating 43 Raised floor 44a, 44b Sliding door shoji 45 Door cart 46a, 46b Projection 47a, 47b Horizontal projection 48 Second hanging wall

Claims (3)

Inside the existing sash window frame, which is fixed to the inner periphery of the opening of the building and consists of the existing upper frame, the existing lower frame, and the left and right existing fence frames, the new upper frame, the new lower frame, and the left and right new fences In a repair sash window frame device in which a new sash window frame comprising a frame is fixed, an upper indoor side surface of a lower guide rail projecting from the upper surface of the existing lower frame, and the new lower frame or The upper side of the lower guide rail and the drooping wall portion are arranged so that the outdoor side surface of the drooping wall portion hanging from the lower surface of another member coupled and fixed to the new lower frame is in contact with or in close proximity to the indoor / outdoor direction. preparative, the new sill or the other member relative to the existing lower frame, is engaged with a state which prevents the displaced weather side, this existing under against the new sill to the existing lower frame above the frame, breaks, characterized in that the screwed directly or via said other member Use sash window frame apparatus. The new lower frame is connected and fixed to the existing lower frame via an attachment which is another member, and the upper and lower surfaces of this attachment are in contact with the lower surface of the new lower frame and the upper surface of the existing lower frame, respectively. and the upper portion of the lower guide rail projecting from the upper surface of the lower frame, which is disposed on an upper surface of the existing lower frame, and a hanging wall portion which is suspended on the lower surface of the attachment, the attachment is displaced weather side The attachment is screwed and fixed to the existing lower frame, and a coupling screw provided in a state of penetrating the new lower frame downward from above is part of the attachment. The new lower frame is coupled and fixed to the existing lower frame via the attachment by screwing in a state of penetrating a part of the attachment from above to below. Renovation for the sash window frame device according to.   The upper surface of the rising plate portion formed at the indoor side end of the existing lower frame is located at substantially the same height as the floor surface of the building, and the lower guide rail is formed on the upper surface of the new lower frame. The sash window frame device for repair described in any one of claims 1 to 2, wherein upper end edges of a plurality of protruding ridges are present at the same height as the upper surface of the rising plate portion.

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