Refitted furniture

Abstract

To provide a renovation fitting capable of attaching a new frame even when the frame of the building is RC (reinforced concrete) construction or SC (steel frame) construction.SOLUTION: A renovation fitting 1 includes: a new frame 2 formed of four sides, which is to be attached to an existing frame 6 placed in an opening of a building 100; an attachment frame 3 formed of four sides on a perimeter of the new frame 2, which is placed at an inner circumference side of the existing frame 6; and a connecting member 8 that is placed between the existing frame 6 and the attachment frame 3, and which is fixed at the inner circumference side of the existing frame 6 to which the attachment frame 3 is attached to the perimeter of new frame 2.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present disclosure relates to refitted fittings.

Background Art

[0002] Conventionally, as a method of refitting an opening of a building by renovation or the like, a covering method of installing a new fitting in the opening has been adopted. In the refitted fitting refitted by this covering method, a new frame is attached to the inner peripheral side of an existing frame attached to the opening of the building (see, for example, Patent Document 1).

[0003] The refitted fitting described in Patent Document 1 is provided with a joining member between the existing frame and the new frame. The refitted fitting described in Patent Document 1 is housed in the framework of a wooden building, and when a new frame is provided, both the new frame and the joining member provided between the existing frame and the new frame are fixed to the framework of the wooden building with screws.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] The refitted fitting described in Patent Document 1 is housed in the framework of a wooden building, and when a new frame is provided, the new frame is fixed to the framework of the wooden building with screws. However, when the framework of the building is made of RC (reinforced concrete) or SC (steel frame), neither the new frame nor the joining member provided between the existing frame and the new frame can be fixed to the framework of the building with screws. Therefore, even when the framework of the building is made of RC (reinforced concrete) or SC (steel frame), it is required to be able to provide a new frame.

[0006] The present disclosure aims to provide a retrofit fitting that can be provided with a new frame even if the building structure is made of RC (reinforced concrete) or SC (steel frame).

Means for Solving the Problems

[0007] The present disclosure relates to a retrofit fitting attached to an existing frame provided in an opening of a building, the retrofit fitting including a new frame configured by assembling four sides, an attachment frame attached to the outer periphery of the new frame by assembling four sides and disposed on the inner peripheral side of the existing frame, and a connection member disposed between the existing frame and the attachment frame, fixed to the inner peripheral side of the existing frame, and to which the attachment frame attached to the outer periphery of the new frame is attached.

Brief Description of the Drawings

[0008]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5A

Figure 5B

Figure 6A

Figure 6B

Figure 7A

Figure 7B

Figure 8A

Figure 8B

Embodiments for Carrying Out the Invention

[0009] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings. The refitted fitting 1 according to this embodiment is a refitted fitting 1 for renovation that forms a new member while the existing frame 6 fixed to the building 100 remains attached to the building 100.

[0010] In this specification, the "looking direction" means the surface direction of the facing material of the shoji 10 in the refitted fitting 1 housed in the opening formed in the wall of the building 100, and the "depth direction" means the thickness direction (i.e., the depth direction) of the facing material. The "depth direction" is also the indoor-outdoor direction. In the drawings, the outdoor side of the refitted fitting 1 is designated as the outdoor side X1, and the indoor side of the refitted fitting 1 is designated as the indoor side X2. The lateral direction of the refitted fitting 1 is referred to as the "left-right direction".

[0011] As shown in FIGS. 1 to 3, the refitted fitting 1 according to this embodiment is a sliding window type refitted sash housed in the opening of the building 100. The refitted fitting 1 is attached to the existing frame 6 provided in the opening of the building 100. In this embodiment, the existing frame 6 to which the refitted fitting 1 is provided is housed in the housing of the building 100 having an RC (reinforced concrete) structure or an SC (steel frame) structure.

[0012] As shown in FIGS. 1 to 4, the refitted building fixture 1 includes a new frame 2, an attachment frame 3 attached to the inside of the existing frame 6 in a state of being attached to the outer periphery of the new frame 2, a connecting member 8, indoor decorative members 41, 42, 43, outdoor decorative covers 51, 52, 53, and sliding doors 10, 10 slidably housed in the new frame 2.

[0013] The existing frame 6 is provided at the opening of the building 100. The new frame 2 is attached to the inside of the existing frame 6 via a connecting member 8 in a state where the attachment frame 3 is attached to the outer periphery. The attachment frame 3 is attached to a connecting member 8 fixed to the inner peripheral side of the existing frame 6.

[0014] First, the configuration of the existing frame 6 will be described. As shown in FIGS. 2 and 3, the existing frame 6 is provided inside the opening of the building 100 and is formed in a frame shape assembled in a rectangle. The existing frame 6 includes an existing upper frame 61, an existing lower frame 62, and left and right existing vertical frames 63.

[0015] As shown in FIG. 2, the existing upper frame 61 is attached to the upper side of the opening of the building 100 and has guide rails 611, 612 (existing upper frame guide rails) for existing sliding doors erected downward.

[0016] The existing lower frame 62 is attached to the lower side of the opening of the building 100 and has guide rails 621, 622 for existing sliding doors erected upward.

[0017] As shown in FIG. 3, the existing vertical frames 63 are respectively attached to the left and right vertical parts on the outdoor side X1 of the opening of the building 100.

[0018] The connecting member 8 is disposed between the existing frame 6 and the attachment frame 3 and connects the existing frame 6 and the attachment frame 3. The connecting member 8 is fixed to the inner peripheral side of the existing frame 6. The attachment frame 3 attached to the outer periphery of the new frame 2 is attached to the connecting member 8. As shown in FIG. 4, the connecting member 8 includes an upper frame connecting member 81, a lower frame connecting member 82, and a pair of vertical frame connecting members 83.

[0019] As shown in FIGS. 2 and 4, the upper frame connecting member 81 connects the existing upper frame 61 and the attachment upper frame 31. As shown in FIG. 2, the upper frame connecting member 81 is connected to the inner peripheral side of the existing upper frame 61. The upper frame connecting member 81 has an indoor-outdoor direction extending plate 811 extending in the indoor-outdoor direction, and a protruding piece 812 formed at the end of the outdoor side X1 of the indoor-outdoor direction extending plate 811 and protruding upward.

[0020] The protruding piece 812 is fixed to the guide rail 611 of the existing upper frame 61 by a screw 812a. The middle portion of the indoor-outdoor direction extending plate 811 in the indoor-outdoor direction is fixed to the guide rails 611 and 612 of the existing upper frame 61 by screws 811a and 815a via an L-shaped attachment piece 815.

[0021] The end portion 813 on the indoor side X2 of the indoor-outdoor direction extending plate 811 is fixed to the indoor side horizontal extension plate 314 (described later) of the attachment upper frame 31 by a screw 314a.

[0022] As shown in FIGS. 2 and 4, the lower frame connecting member 82 connects the existing lower frame 62 and the attachment lower frame 32. As shown in FIG. 2, the lower frame connecting member 82 is connected to the inner peripheral side of the existing lower frame 62. The lower frame connecting member 82 has an indoor-outdoor direction extending plate 821 extending in the indoor-outdoor direction, an outdoor side stepped L-shaped plate 822 connected to the outdoor side X1 of the indoor-outdoor direction extending plate 821, and a lower support portion 823 formed at the lower part of the end of the outdoor side X1 of the outdoor side L-shaped plate 822.

[0023] The middle portion of the indoor-outdoor direction extending plate 821 in the indoor-outdoor direction is fixed to the guide rail 622 of the existing lower frame 62 by screws 821a and 825a via an L-shaped attachment piece 825.

[0024] The outdoor side L-shaped plate 822 is formed in an L-shaped stepped shape that is open to the outdoor side X1 and the upper side, and is formed at a position one step lower than the indoor-outdoor direction extending plate 821.

[0025] The lower support portion 823 has a U-shaped open frame 823a that opens downward and a support member 823b attached to the upper part inside the open frame 823a. The upper end of the guide rail 621 of the existing lower frame 62 abuts against the lower end of the support member 823b.

[0026] The end portion 824 on the indoor side X2 of the indoor-outdoor direction extending plate 821 is fixed to the indoor-side horizontally extending plate 324 of the attachment lower frame 32 by screws 324a.

[0027] As shown in FIGS. 3 and 4, the vertical frame connecting member 83 connects the existing vertical frame 63 and the attachment vertical frame 33. As shown in FIG. 3, the vertical frame connecting member 83 is connected to the inner peripheral side of the existing vertical frame 63. The vertical frame connecting member 83 has an indoor-outdoor direction extending plate 831 extending in the indoor-outdoor direction, an end protruding piece 832 protruding outward in the left-right direction from the end on the outdoor side X1 of the indoor-outdoor direction extending plate 831, and a connecting portion side regulating piece 833 protruding outward in the left-right direction parallel to the end protruding piece 832 on the indoor side X2 of the indoor-outdoor direction extending plate 831 with respect to the end protruding piece 832.

[0028] On the indoor-outdoor direction extending plate 831, a stepped portion 831a formed in a stepped shape in the middle of the indoor-outdoor direction and a convex portion 831b protruding convexly inward in the left-right direction on the end side of the outdoor side X1 are formed. The indoor-outdoor direction extending plate 831 is fixed to the existing vertical frame 63 by screws 831c in the middle of the indoor-outdoor direction.

[0029] When fixing the indoor-outdoor direction extending plate 831 of the vertical frame connecting member 83 and the existing vertical frame 63 with screws 831c, the vertical frame connecting member 83 is arranged on the inner peripheral side of the existing vertical frame 63, and a cylindrical spacer 835 is arranged between the existing vertical frame 63 and the vertical frame connecting member 83. Then, by passing the screw 831c through the vertical frame connecting member 83, the cylindrical spacer 835, and the existing vertical frame 63 in this order from the inner side in the left-right direction of the vertical frame connecting member 83, the vertical frame connecting member 83, the cylindrical spacer 835, and the existing vertical frame 63 are fixed with the screw 831c.

[0030] The end 834 of the indoor side X2 of the indoor / outdoor extending plate 831 is fixed to the indoor-side indoor-direction extending part 333 of the attachment vertical frame 33 by a screw 333a.

[0031] When the vertical frame connecting member 83 is combined with the existing vertical frame 63, the connection part side regulating piece 833 is arranged on the indoor side X2 of the existing side regulating piece 631 that protrudes inward in the left-right direction from the existing vertical frame 63, and the movement to the outdoor side X1 is restricted.

[0032] As shown in FIG. 4, the new frame 2 is attached to the connecting member 8 fixed to the existing frame 6 in a state where the attachment frame 3 is attached to the outer periphery. The new frame 2 is configured by assembling its four sides and is arranged on the inner peripheral side of the existing frame 6. The new frame 2 is attached to the inner peripheral side of the connecting member 8 attached to the inner periphery of the existing frame 6 via the attachment frame 3.

[0033] The new frame 2 includes a new upper frame 21, a new lower frame 22, and left and right new vertical frames 23. The new frame 2 is screwed at the portions where the new upper frame 21, the new lower frame 22, and the left and right new vertical frames 23 are combined in a state where its four sides are assembled. The attachment frame 3 includes an attachment upper frame 31, an attachment lower frame 32, and left and right attachment vertical frames 33.

[0034] The new upper frame 21 is attached to the inner peripheral side of the attachment upper frame 31 as shown in FIG. 2 in a state where the attachment frame 3 is attached to the outer periphery. The new upper frame 21 has guide rails 211 and 212 on the upper side of the shoji 10, 10 standing upright downward.

[0035] The new lower frame 22 is attached to the inner peripheral side of the attachment lower frame 32 as shown in FIG. 2 in a state where the attachment frame 3 is attached to the outer periphery. The new lower frame 22 has guide rails 221 and 222 on the lower side of the shoji 10, 10 standing upright upward.

[0036] The newly installed vertical frame 23 is attached to the inner peripheral side of the attachment vertical frame 33 as shown in Fig. 3 with the attachment frame 3 attached to the outer periphery.

[0037] The newly installed upper frame 21, the newly installed lower frame 22, and the newly installed vertical frame 23 are formed of, for example, a metal material or a resin material. As shown in Figs. 2 and 3, resin angle members 213, 223, and 233 are provided on the indoor side X2 of the newly installed upper frame 21, the newly installed lower frame 22, and the newly installed vertical frame 23, respectively.

[0038] The above-mentioned newly installed frame 2 (the newly installed upper frame 21, the newly installed lower frame 22, and the left and right newly installed vertical frames 23) is attached to the connecting member 8 fixed to the inner peripheral side of the existing frame 6 (the existing upper frame 61, the existing lower frame 62, and the left and right existing vertical frames 63) with the attachment frame 3 (the attachment upper frame 31, the attachment lower frame 32, and the left and right attachment vertical frames 33) assembled around the outer periphery.

[0039] As shown in Fig. 4, the attachment frame 3 is attached to the connecting member 8 fixed to the inner peripheral side of the existing frame 6 in a state where it is assembled around the outer periphery of the newly installed frame 2. The attachment frame 3 is assembled and attached around the outer periphery of the newly installed frame 2.

[0040] As shown in Fig. 4, the attachment frame 3 is configured by arranging the attachment upper frame 31, the attachment lower frame 32, and a pair of attachment vertical frames 33 around the four sides to form a rectangle. The attachment upper frame 31, the attachment lower frame 32, and the left and right attachment vertical frames 33 are each formed of, for example, an aluminum material.

[0041] The attachment upper frame 31 is disposed at the upper part of the attachment frame 3 and extends in the left-right direction (horizontal direction). The attachment lower frame 32 is disposed at the lower side of the attachment frame 3 and extends in the left-right direction (horizontal direction). The attachment vertical frame 33 is disposed at the end side in the left-right direction of the attachment frame 3 and extends in the up-down direction.

[0042] As shown in FIG. 2, the attachment upper frame 31 has an attachment upper frame hollow portion 311, a horizontal gutter structure portion 312, an outdoor side vertically extending plate portion 313 (a finding direction extending plate portion), and an indoor side horizontally extending plate 314 (an extending plate).

[0043] The attachment upper frame hollow portion 311 and the horizontal gutter structure portion 312 are arranged side by side in the indoor-outdoor direction. The attachment upper frame hollow portion 311 is arranged on the indoor side X2, and the horizontal gutter structure portion 312 is arranged on the outdoor side X1.

[0044] The attachment upper frame hollow portion 311 is formed in an elongated rectangular hollow shape extending in the indoor-outdoor direction.

[0045] The horizontal gutter structure portion 312 is formed on the outdoor side X1 of the attachment upper frame hollow portion 311 at the upper part of the attachment upper frame 31. The horizontal gutter structure portion 312 is formed in a concave shape that opens upward and is recessed downward.

[0046] The water that has entered the horizontal gutter structure portion 312 flows to both longitudinal ends of the attachment upper frame 31 in the longitudinal direction, and flows into the interior of the attachment vertical frame 33 through the longitudinal ends that are open to the outside in the left-right direction. The water that has flowed into the interior of the attachment vertical frame 33 is received by the existing lower frame 62 on the lower side of the attachment vertical frame 33 and discharged to the outside. Thereby, by providing the horizontal gutter structure portion 312, the drainage performance can be improved and the water-stopping performance can be improved.

[0047] The outdoor side vertically extending plate portion 313 is formed in a plate shape that extends upward from the end of the horizontal gutter structure portion 312 on the outdoor side X1. An outdoor side decorative cover 51 is attached to the outdoor side X1 of the outdoor side vertically extending plate portion 313. The outdoor side decorative cover 51 attached to the outdoor side X1 of the outdoor side vertically extending plate portion 313 is arranged on the outdoor side X1 of the outdoor side vertically extending plate portion 313 so as to cover the outdoor side vertically extending plate portion 313.

[0048] The indoor horizontal extension plate 314 extends horizontally in the indoor side X2 direction from the end of the indoor side of the upper end of the attachment upper frame hollow part 311. The indoor horizontal extension plate 314 is fixed to the end 813 of the indoor side X2 of the indoor-outdoor direction extension plate 811 of the upper frame connection member 81 by screws 314a.

[0049] As shown in FIG. 2, the attachment lower frame 32 has an indoor-outdoor direction extension part 321, an attachment lower frame hollow part 322 (hollow part), an outdoor side vertical extension plate part 323, and an indoor side horizontal extension plate 324 (extension plate).

[0050] The indoor-outdoor direction extension part 321 and the attachment lower frame hollow part 322 are arranged side by side in the indoor-outdoor direction. The indoor-outdoor direction extension part 321 is arranged on the outdoor side X1, and the attachment lower frame hollow part 322 is arranged on the indoor side X2. The indoor-outdoor direction extension part 321 is formed at a position lower than the upper surface of the attachment lower frame hollow part 322.

[0051] The attachment lower frame hollow part 322 is formed in an elongated rectangular hollow shape extending in the indoor-outdoor direction.

[0052] The outdoor side vertical extension plate part 323 is formed in a plate shape extending downward from the end of the outdoor side X1 of the indoor-outdoor direction extension part 321. An outdoor side decorative cover 52 is attached to the outdoor side X1 of the outdoor side vertical extension plate part 323. The outdoor side decorative cover 52 attached to the outdoor side X1 of the outdoor side vertical extension plate part 323 is arranged on the outdoor side X1 of the outdoor side vertical extension plate part 323 so as to cover the outdoor side vertical extension plate part 323.

[0053] The indoor side horizontal extension plate 324 extends horizontally in the indoor side X2 direction from the end of the indoor side of the upper end of the attachment lower frame hollow part 322. The indoor side horizontal extension plate 324 is fixed to the end 824 of the indoor side X2 of the indoor-outdoor direction extension plate 821 of the lower frame connection member 82 by screws 324a.

[0054] As shown in FIG. 3, the attachment vertical frame 33 has an attachment vertical frame hollow portion 331 (hollow portion), an outdoor side left - right direction extending plate portion 332 (finding direction extending plate portion), and an indoor side indoor direction extending portion 333 (extending plate).

[0055] The attachment vertical frame hollow portion 331 is formed in an elongated rectangular hollow shape extending in the indoor - outdoor direction.

[0056] The indoor side indoor direction extending portion 333 extends from the end on the left - right direction outer side of the attachment vertical frame hollow portion 331 at the end on the indoor side X2 to the indoor side X2. The indoor side indoor direction extending portion 333 is fixed to the end 834 on the indoor side X2 of the indoor - outdoor direction extending plate 831 of the vertical frame connecting member 83 by a screw 333a.

[0057] The outdoor side left - right direction extending plate portion 332 is formed in a plate shape extending outward in the left - right direction from the end on the outdoor side X1 of the attachment vertical frame hollow portion 331. The outdoor side left - right direction extending plate portion 332 is arranged on the outdoor side X1 and extends in the left - right direction (finding direction).

[0058] An outdoor side decorative cover 53 is attached to the surface on the outdoor side X1 of the attachment vertical frame hollow portion 331. The outdoor side decorative cover 53 attached to the surface on the outdoor side X1 of the attachment vertical frame hollow portion 331 is arranged on the outdoor side X1 of the outdoor side left - right direction extending plate portion 332 so as to cover the outdoor side left - right direction extending plate portion 332.

[0059] As shown in FIGS. 2 and 3, the indoor side decorative members 41, 42, 43 are respectively attached to the resin angle members 213, 223, 233 of the new frame 2 on the indoor side X2.

[0060] As shown in FIGS. 2 and 3, the outdoor side decorative covers 51, 52, 53 are respectively attached to the surfaces on the outdoor side X1 of the attachment upper frame 31, the attachment lower frame 32, and the attachment vertical frame 33.

[0061] Further, as shown in FIGS. 2 and 3, the refitted fitting 1 has an airtight structure 85. The airtight structure 70 is configured to connect the existing frame 6 side and the new frame 2 side with an airtight tape, and connect the existing frame 6 and the attachment frame 3 attached to the new frame 2. In the present embodiment, the airtight structure 85 is arranged to connect the existing frame 6 and the attachment frame 3 attached to the new frame 2 in order to improve the airtight performance between the existing frame 6 and the new frame 2. The airtight tape constituting the airtight structure 85 may be composed of a single sheet or may be configured by connecting a plurality of sheets. Note that, in the airtight structure 85 of the present embodiment, an airtight tape is used, but it is not limited thereto. In the airtight structure 85, for example, a sheet material (airtight attachment sheet) provided with an adhesive at the attachment portion may be used.

[0062] In the present embodiment, the existing frame 6 in which the refitted fitting 1 is provided is accommodated in the housing of the building 100 having an RC (reinforced concrete) structure or an SC (steel frame) structure. Therefore, when attaching the attachment frame 3 assembled around the outer periphery of the new frame 2 to the inner peripheral side of the existing frame 6, it is impossible to fix it with screws.

[0063] On the other hand, in the present disclosure, a connection member 8 is fixed to the existing frame 6 itself on the inner periphery of the existing frame 6, and an attachment frame 3 assembled around the outer periphery of the new frame 2 is attached to the inner peripheral side of the connection member 8 fixed to the existing frame 6. Thus, without using screws fixed to the housing of the building 100, by fixing the connection member 8 to the inner peripheral side of the existing frame 6, the attachment frame 3 assembled around the outer periphery of the new frame 2 can be attached to the connection member 8 fixed to the inner peripheral side of the existing frame 6.

[0064] Next, the procedure for constructing the refitted fitting 1 will be described. When constructing the refitted fitting 1, it is prepared in advance in a state where the attachment frame 3 is assembled on the outer periphery of the newly assembled frame 2.

[0065] When installing the refitted building fixture 1, first, fix the connecting member 8 on the inner circumferential side of the existing frame 6. Specifically, as shown in FIG. 5A, fix the upper frame connecting member 81 on the inner circumferential side of the existing upper frame 61. In detail, fix the upper frame connecting member 81 to the guide rails 611 and 612 for the existing shoji of the existing upper frame 61 via the mounting piece 815. Also, fix the lower frame connecting member 82 to the inner circumferential side of the existing lower frame 62 via the mounting piece 825. Further, as shown in FIG. 5B, fix the vertical frame connecting member 83 to the inner circumferential side of the existing vertical frame 63.

[0066] Next, as shown in FIGS. 6A and 6B, with the attachment frame 3 assembled to the outer periphery of the new frame 2, insert the attachment frame 3 assembled to the outer periphery of the new frame 2 into the opening inside the connecting member 8. Here, in the attachment frame 3, since the vertically extending plate portion 313 on the outdoor side of the attachment upper frame 31, the vertically extending plate portion 323 on the outdoor side of the attachment lower frame 32, and the inwardly extending portion 333 in the indoor direction of the attachment vertical frame 33 will contact the existing frame 6, insert the attachment frame 3 assembled to the outer periphery of the new frame 2 into the opening of the existing frame 6 while tilting it, and temporarily take it out to the outdoor side X1.

[0067] After that, as shown in FIGS. 7A and 7B, change the orientation of the attachment frame 3 assembled to the outer periphery of the new frame 2 from the tilted state to a state parallel to the existing frame 6, and pull it from the outdoor side X1 of the existing frame 6 toward the existing frame 6 side.

[0068] Next, as shown in FIG. 8A, fix the horizontally extending plate 314 on the indoor side of the attachment upper frame 31 to the end portion 813 on the indoor side X2 of the indoor-outdoor extending plate 811 with screws 314a. Also, fix the horizontally extending plate 324 on the indoor side of the attachment lower frame 32 to the end portion 824 on the indoor side X2 of the indoor-outdoor extending plate 821 with screws 324a. Also, as shown in FIG. 8B, fix the inwardly extending portion 333 in the indoor direction of the attachment vertical frame 33 to the end portion 834 on the indoor side X2 of the indoor-outdoor extending plate 831 with screws 333a.

[0069] In the newly installed upper frame 21, as shown in Fig. 8A, from the inner peripheral side of the newly installed upper frame 21, screws 21a are passed through in the order of the newly installed upper frame 21, the attachment upper frame 31, the upper frame connecting member 81, and the existing upper frame 61 from the lower side to the upper side, and fixed with the screws 21a. Further, in the newly installed vertical frame 23, as shown in Fig. 8B, from the inner peripheral side of the newly installed vertical frame 23, screws 23a are passed through in the order of the newly installed vertical frame 23, the attachment vertical frame 33, and the vertical frame connecting member 83 from the inner side to the outer side in the left - right direction, and fixed with the screws 23a.

[0070] Thus, the newly installed frame 2 can be attached to the existing frame 6 without fixing the newly installed frame 2 and the attachment frame 3 to the building body of the building 100. Therefore, even if the building body of the building 100 is of RC (reinforced concrete) or SC (steel frame) construction, the attachment frame 3 assembled on the outer periphery of the newly installed frame 2 can be attached to the existing frame 6.

[0071] Subsequently, as shown in Figs. 8A and 8B, on the outdoor side X1, the outdoor decorative covers 51, 52, 53 are respectively attached to the surfaces on the outdoor side X1 of the attachment upper frame 31, the attachment lower frame 32, and the attachment vertical frame 33. Also, on the indoor side X2, the indoor decorative members 41, 42, 43 are respectively attached to the resin angle members 213, 223, 233 of the newly installed frame 2.

[0072] According to the present embodiment, the following effects are achieved. The retrofit fitting 1 of the present embodiment is attached to the existing frame 6 provided at the opening of the building 100, and includes a newly installed frame 2 configured by assembling the four sides, an attachment frame 3 assembled on the outer periphery of the newly installed frame 2 and arranged on the inner peripheral side of the existing frame 6, and a connecting member 8 arranged between the existing frame 6 and the attachment frame 3, fixed to the inner peripheral side of the existing frame 6, and to which the attachment frame 3 attached to the outer periphery of the newly installed frame 2 is attached.

[0073] As a result, the new frame 2 can be attached to the existing frame 6 without fixing the new frame 2 and the attachment frame 3 to the building body 100. Therefore, even if the building body is made of RC (reinforced concrete) or SC (steel frame), the attachment frame 3 assembled to the outer periphery of the new frame 2 can be attached to the existing frame 6.

[0074] In addition, in the present embodiment, the connecting member 8 includes an upper frame connecting member 81 that connects the existing upper frame 61 and the attachment upper frame 31, a lower frame connecting member 82 that connects the existing lower frame 62 and the attachment lower frame 32, and a vertical frame connecting member 83 that connects the existing vertical frame 63 and the attachment vertical frame 33. Thereby, the connecting member 8 can easily attach the four circumferences of the attachment frame 3 to the inner circumferential side of the existing frame 6.

[0075] In addition, in the present embodiment, the upper frame connecting member 81 is fixed to the guide rails 611 and 612 for existing shoji provided on the existing upper frame 61 and standing upright downward. Thereby, the upper frame connecting member 81 can be fixed to the existing upper frame 61 with a simple configuration by simply fixing the upper frame connecting member 81 to the guide rails 611 and 612 for existing shoji.

[0076] As described above, a preferred embodiment of the present disclosure has been described. However, the present disclosure is not limited to the above-described embodiment, and can be appropriately modified.

[0077] For example, in the above embodiment, the case where the remodeling fitting 1 is applied to a sliding window type remodeling sash has been described. However, it is not limited to this. The remodeling fitting may be applied to, for example, an opening / closing type remodeling fitting in which the door body rotates around a rotation axis to open and close, or a vertical sliding type remodeling fitting. Further, the remodeling fitting may be applied to, for example, a FIX type remodeling fitting in which the glass is attached by being fixed to the frame without opening and closing.

Explanation of Reference Numerals

[0078] 1 Refitted fitting, 2 Newly installed frame, 3 Attachment frame, 6 Existing frame, 8 Connecting member, 61 Existing upper frame, 62 Existing lower frame, 63 Existing vertical frame, 81 Upper frame connecting member, 82 Lower frame connecting member, 83 Vertical frame connecting member, 611, 612 Guide rail (existing upper frame guide rail)

Claims

1. A retrofit fitting disposed on the inner peripheral side of an existing frame provided at an opening of a building, comprising: A newly installed frame formed by assembling four sides; An attachment frame assembled and attached to the outer periphery of the newly installed frame and disposed on the inner peripheral side of the existing frame; A connecting member disposed between the existing frame and the attachment frame, fixed to the inner peripheral side of the existing frame, and to which the attachment frame attached to the outer periphery of the newly installed frame is attached. The attachment frame has a hollow portion extending in the indoor-outdoor direction. The connecting member is a retrofit fitting disposed between the existing frame and the hollow portion.

2. The existing frame has an existing upper frame, an existing lower frame, and a pair of existing vertical frames. The attachment frame has an attachment upper frame, an attachment lower frame, and a pair of attachment vertical frames. The connecting member has an upper frame connecting member connecting the existing upper frame and the attachment upper frame, a lower frame connecting member connecting the existing lower frame and the attachment lower frame, and a vertical frame connecting member connecting the existing vertical frame and the attachment vertical frame. The retrofit fitting according to Claim 1.

3. The upper frame connecting member is fixed to an existing upper frame guide rail provided on the existing upper frame and standing downward. The retrofit fitting according to Claim 2.

Images