Attachments and joinery

Abstract

To provide attachments and joinery that allow for easy attachment of various external layers and reduce the risk of processing errors or damage to the joinery frame. [Solution] The attachment is used to attach an external layer to a door frame 10 which comprises an upper frame 11, a lower frame 12, and vertical frames 13, 14. The attachment comprises vertical frame attachments 43, 44 which are attached to the vertical frames 13, 14, horizontal frame attachments 41, 42 which are attached to the upper frame 11 and lower frame 12, and a cap 47 which is attached to the end of one of the vertical frame attachments 43, 44 or the horizontal frame attachments 41, 42. There is a gap between the vertical frame attachments 43, 44 and the horizontal frame attachments 41, 42, and the cap 47 covers the other end of the vertical frame attachments 43, 44 and the horizontal frame attachments 41, 42 and the gap.

Description

Technical Field

[0001] The present invention relates to an attachment used for attaching an external layer (window surrounding parts) such as a shade, a louver, or a surface lattice to the outdoor side of a fitting frame, and a fitting including the same.

Background Art

[0002] When attaching an external layer such as a shade to the outdoor side of a synthetic resin window frame, conventionally, it has been attached to the wall around the resin frame using screws or the like. However, since screw holes or the like are processed in the outer wall, it is necessary to perform waterproofing treatment or the like, and the on-site work has been complicated. For this reason, Patent Document 1 discloses a structure in which an attachment device such as a screen device is attached to a resin frame by using an attachment device including a bracket and a retaining fitting provided on the resin frame, and the attachment device is directly attached to the resin frame. In this Patent Document 1, an attachment hole is formed in the resin frame, a turn nut is fitted into the attachment hole, and a bracket is attached by a screw screwed into the turn nut.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Incidentally, the outer layers consist of various types of components such as shades and window grilles, and the mounting positions of the connecting parts that attach these outer layers to the resin frame differ for each. Therefore, when machining mounting holes in the resin frame for fitting turn nuts, it is necessary to machine the holes in positions corresponding to the type of outer layer. Consequently, when machining mounting holes at construction sites, the work was complicated, as it was necessary to check the machining position according to the type of outer layer. In addition, there was a risk of making mistakes such as machining the mounting holes in the wrong position in the resin frame, or damaging the resin frame, in which case there was a risk of having to replace the resin frame.

[0005] The objective of the present invention is to provide an attachment and joinery that allows for easy attachment of various external layers and reduces the likelihood of processing errors or damage to the joinery frame. [Means for solving the problem]

[0006] The present invention relates to an attachment used for attaching an external layer to a door frame having vertical and horizontal frames, comprising: a vertical frame attachment attached to the vertical frame; a horizontal frame attachment attached to the horizontal frame; and a cap attached to the end of either the vertical frame attachment or the horizontal frame attachment, wherein there is a gap between the vertical frame attachment and the horizontal frame attachment, and the cap covers the other end of the vertical frame attachment and the gap.

[0007] The building fitting of the present invention is characterized by comprising a building fitting frame, an attachment, and an external layer attached to the attachment. [Effects of the Invention]

[0008] According to the present invention, it is possible to provide an attachment and joinery that allows for easy attachment of various external layers and reduces the likelihood of processing errors or damage to the joinery frame. [Brief explanation of the drawing]

[0009] [Figure 1] This is a longitudinal cross-sectional view showing the joinery of the first embodiment. [Figure 2] This is a cross-sectional view showing the joinery of the first embodiment. [Figure 3] This is a front view showing a door frame to which the attachment of the first embodiment is attached. [Figure 4] This is a perspective view showing a door frame. [Figure 5] (A) is a perspective view showing the procedure for attaching the backing plate device to the door frame, and (B) is a perspective view showing the backing plate device inserted into the door frame. [Figure 6] (A) is a diagram illustrating the rotation operation of the backing plate of the backing plate device, and (B) is a cross-sectional view showing the backing plate device attached to the door frame. [Figure 7] This is a perspective view showing the backing plate device attached to the door frame. [Figure 8] This is a perspective view showing the vertical frame attachment being installed on the door frame. [Figure 9] This is a perspective view showing the configuration of the vertical frame attachment. [Figure 10] This is a perspective view showing the attachment of a horizontal frame to a door frame. [Figure 11] This is a perspective view showing the configuration of the side frame attachment and cap. [Figure 12] This is a perspective view showing the bracket being attached to the attachment. [Figure 13] This is a perspective view showing the attachment of an external shade. [Figure 14] This is an enlarged cross-sectional view showing the attachment with the external shade attached. [Figure 15] This is a longitudinal cross-sectional view showing the joinery of the second embodiment. [Figure 16] This is a cross-sectional view showing the joinery of the second embodiment. [Figure 17] This is a longitudinal cross-sectional view showing the joinery of the third embodiment. [Figure 18]It is a cross-sectional view showing the fitting of the third embodiment.

Mode for Carrying Out the Invention

[0010] [First Embodiment] Hereinafter, the fitting 1 of the first embodiment of the present invention will be described based on the drawings. As shown in FIGS. 1 and 2, the fitting 1 of the first embodiment includes a fitting frame 10 attached to a wall of a building or the like, and a shoji 20 that opens and closes with respect to the fitting frame 10. The fitting 1 of the present embodiment is an inward-opening and inward-tilting window that can open and close the shoji 20 with respect to the fitting frame 10 in two ways: inward-opening and inward-tilting. On the outdoor side of the fitting 1 of the present embodiment, an external shade 7, which is an external layer, is attached via an attachment 4. In the following description, the indoor-outdoor direction of the fitting 1 is taken as the prospective direction, and the direction orthogonal to the prospective direction and the vertical direction of the fitting 1 is taken as the left-right direction. Also, in each figure, for the sake of easy viewing of the drawing, the hatching indicating the cross-section is omitted.

[0011] The fitting frame 10 is formed by joining an upper frame 11, a lower frame 12, and left and right vertical frames 13, 14 in a rectangular shape. As shown in FIGS. 1 and 2, the upper frame 11, the lower frame 12, and the vertical frames 13, 14 are made of a synthetic resin material having the same cross-sectional shape, and are framed by welding the respective ends cut at an angle of 45° with respect to the longitudinal direction. The upper frame 11, the lower frame 12, and the vertical frames 13, 14 of the present embodiment include a window frame body 15 that is the fitting frame main body, and a drainage part 16 that protrudes from the outdoor side of the outdoor surface part 151 of the window frame body 15. The window frame body 15 is provided at the indoor side position of the drainage part 16 and includes a hollow part 17 into which a back plate member 30 described later is inserted.

[0012] The shoji screen 20 is constructed by joining an upper frame 21, a lower frame 22, and left and right vertical frames 23 and 24 in a rectangular shape, and holding the glass 25, which is positioned on the inner circumference, with the upper frame 21, lower frame 22, vertical frames 23 and 24, and the trim 26 attached to them. In this embodiment, the glass 25 is triple-pane glass, but double-pane glass or single-pane glass may also be used. The vertical frame 24 is provided with a handle 27 that is operated when opening and closing the shoji screen 20.

[0013] [attachment] Next, the configuration of the attachment 4 for fixing the outer layer to the door frame 10 and the procedure for attaching it to the door frame 10 will be explained with reference to Figures 3 to 14. As shown in Figures 1 to 3, attachment 4 comprises upper and lower horizontal frame attachments 41 and 42 that are attached to the upper frame 11 and lower frame 12, and left and right vertical frame attachments 43 and 44 that are attached to the vertical frames 13 and 14.

[0014] Each of the attachments 41-44 of attachment 4 is attached to the door frame 10 via a backing plate member 30. As shown in Figures 4 and 5, the backing plate member 30 is attached to the exterior surface of the door frame 10, specifically near both the left and right ends of the upper frame 11 and lower frame 12, and near the upper and lower ends of the vertical frames 13 and 14. That is, as shown in Figure 4, insertion holes 152 and a pair of through holes 153 are formed in the exterior surface portion 151 of the upper frame 11, lower frame 12, and vertical frames 13 and 14. The insertion holes 152 are through holes for inserting the backing plate member 30 into the hollow portion 17 on the back side of the exterior surface portion 151. The through holes 153 are formed in the longitudinal direction (left-right direction) of the upper frame 11 and lower frame 12, and in the longitudinal direction (up-down direction) of the vertical frames 13 and 14, flanking the insertion holes 152.

[0015] As shown in Figure 5, the backing plate member 30 comprises two backing plates 31 and a connecting member 32 that connects the backing plates 31. Each backing plate 31 is an L-shaped metal material, such as an L-beam, having an insertion piece 311 that is inserted into the hollow portion 17 and an extension piece 315 perpendicular to the insertion piece 311. The insertion piece 311 has a screw hole 312 which serves as a fixing hole. In this embodiment, the extension piece 315 of the backing plate 31 is longer than the extension piece 311. The connecting member 32 is an expandable, ring-shaped member that bundles and combines the backing plates 31. Specifically, the connecting member 32 can be an O-ring, a sealing washer, a rubber washer, or the like. Here, since the backing plate 31 is inserted into the insertion hole 152, the width dimension of the backing plate 31 is set to be slightly smaller than the width dimension of the insertion hole 152. The width dimensions of the backing plate 31 and the insertion hole 152 are perpendicular to the direction connecting the two through holes 153 formed on either side of the insertion hole 152, which is the vertical direction for the upper frame 11 and lower frame 12, and the left-right direction for the vertical frames 13 and 14. Furthermore, the thickness dimension of two stacked backing plates 31 is set to be smaller than the dimension of the insertion hole 152 along the longitudinal direction of the upper frame 11, lower frame 12 and vertical frames 13 and 14 (the left-right dimension for the upper frame 11 and lower frame 12, and the up-down dimension for the vertical frames 13 and 14). Furthermore, the width dimension of the portion on the back plate 31 to which the connecting member 32 is attached, that is, the width dimension from one side of the connecting member 32 attached to the back plate 31 to the other side of the back plate 31, is made larger than the width dimension of the insertion hole 152.

[0016] As shown in Figure 5(A), before being inserted into the insertion holes 152 formed in the outdoor surface portions 151 of the vertical frames 13 and 14, the connecting member 32 is attached to the end of the insertion piece 311 on the extension piece 315 side, that is, at the corner where the insertion piece 311 and the extension piece 315 intersect. As a result, the back plate member 30 is assembled such that the insertion pieces 311 of the two back plates 31 abut each other, and the extension pieces 315 move away from each other (up and down). Next, as shown in Figure 5(B), the insertion pieces 311 are inserted into the insertion hole 152 with the pieces in contact with each other. At this time, as shown in Figure 6(A), the connecting member 32 attached to the back plate 31 is positioned outside the insertion hole 152 and is therefore locked to the outdoor side of the insertion hole 152. Furthermore, the depth dimension of the hollow section 17, that is, the projection dimension from the indoor surface of the outdoor surface section 151 to the wall surface in the hollow section 17 that faces the outdoor surface section 151, is longer than the longitudinal dimension of the insertion pieces 311 inserted into the hollow section 17. Therefore, with the connecting member 32 in contact with the outdoor surface section 151, the back plate 31 can be easily rotated by manipulating the extended piece 315. Next, as shown in Figure 6(A), the pair of extension pieces 315 are rotated in a direction that brings them closer together. Then, as shown in Figure 6(B), the pair of extension pieces 315 are brought into contact with each other, and each insertion piece 311 is brought into contact with the indoor surface of the outdoor surface 151, and the screw holes 312 of the insertion pieces 311 are positioned to correspond to each through hole 153. Here, since the longitudinal dimension of the insertion piece 311 is larger than the dimensions of the insertion holes 152 along the longitudinal direction of the upper frame 11, lower frame 12 and vertical frames 13 and 14, as shown in Figure 6(B), when the insertion piece 311 is positioned along the outdoor surface 151, the insertion piece 311 will not come out of the insertion hole 152 and the backing plate 31 will not fall to the outdoor side of the outdoor surface 151. Furthermore, since the connecting member 32 is formed on the outdoor side of the insertion hole 152 and the extended piece 315 extends to the outdoor side of the insertion hole 152, the backing plate 31 will not fall into the hollow portion 17.

[0017] Following the above procedure, the backing plate members 30 are inserted and attached into the insertion holes 152 of the upper frame 11, lower frame 12, and vertical frames 13 and 14. As a result, as shown in Figure 7, the extended pieces 315 of the backing plate members 30 extend from each insertion hole 152, and the screw holes 312 of the insertion pieces 311 are positioned to correspond to the through holes 153.

[0018] Next, as shown in Figure 8, the vertical frame attachments 43 and 44 are attached to the back plate members 30 of the vertical frames 13 and 14. As also shown in Figure 9, the vertical frame attachments 43 and 44 consist of an attachment body 45 and an attachment cover 46, and are elongated members that run along the longitudinal direction of the vertical frames 13 and 14. The attachment body 45 is an extruded metal profile such as aluminum, and is formed in a roughly rectangular tubular shape with an outer surface 451, an inner surface 452, and left and right side surfaces 453. The left and right side surfaces 453 protrude outward from the outer surface 451, and locking pieces 454 that protrude toward each other are provided along the entire length in the vertical direction at their tips. The exterior surface 451 is machined with screw holes 455 into which screws for attaching the exterior shade 7 are screwed, and rectangular openings 456. Two screw holes 455 are formed at the upper end and two at the lower end. Two openings 456 are formed below the two screw holes 455 at the upper end and above the two screw holes 455 at the lower end. These screw holes 455 function as second through-holes for attaching the exterior layer.

[0019] On the interior surface 452, corresponding to the position of the upper opening 456, there is an engagement hole 457A into which the extended portion 315 of the backing plate 31 is inserted, and a pair of through holes 458 are provided on either side of the engagement hole 457A. Also, corresponding to the position of the lower opening 456, there is an engagement hole 457B into which the extended portion 315 of the backing plate 31 is inserted, and a pair of through holes 459 are provided on either side of the engagement hole 457B. The through hole 458 is a round hole. The engagement hole 457A is a rectangular hole into which the two extension pieces 315 of the backing plate member 30 can be inserted. The height dimension of the engagement hole 457A corresponds to the thickness dimension of the two extension pieces 315, and the width dimension corresponds to the width dimension of the extension pieces 315. The through hole 459 is an elongated hole that is long in the vertical direction. The engagement hole 457B is a rectangular hole into which the two extension pieces 315 of the backing plate member 30 can be inserted. The height dimension of the engagement hole 457B is greater than the thickness dimension of the two extension pieces 315, and the width dimension corresponds to the width dimension of the extension pieces 315.

[0020] As shown in Figure 8, the attachment body 45 of the vertical frame attachments 43 and 44 is attached to the vertical frames 13 and 14 by inserting the extended portion 315 of the backing plate member 30 into the engagement holes 457A and 457B of the attachment body 45, and screwing screws 61 into the screw holes 312 of the backing plate member 30 through the opening 456 and through holes 458 and 459 of the attachment body 45 and the through hole 153 of the vertical frames 13 and 14. Therefore, the through holes 458 and 459 are first through holes formed on the interior surface 452 of the attachment body 45 for attachment to the door frame 10. In addition, the engagement hole 457B and the through hole 459 on the lower end side of the attachment body 45 are elongated holes that are long in the vertical direction, so that they can absorb the thermal expansion of the attachment body 45 relative to the vertical frames 13 and 14.

[0021] As shown in Figure 9, the attachment cover 46 comprises a plate-shaped portion 461 that is continuous in the vertical direction and a pair of claw portions 462 that protrude from the plate-shaped portion 461 toward the interior and engage with the locking piece 454. The plate-shaped portion 461 has through holes 463 formed in it that correspond to the positions of the screw holes 455 of the attachment body 45. Therefore, the through holes 463 are third through holes formed in a position corresponding to the screw holes 455, which are the second through holes. The attachment cover 46 is attached to the attachment body 45 by fitting its claw portion 462 onto the locking piece 454 of the attachment body 45, which is fixed to the vertical frames 13 and 14 with screws 61.

[0022] Next, as shown in Figure 10, the horizontal frame attachments 41 and 42 are attached to the back plate members 30 of the upper frame 11 and lower frame 12. As also shown in Figure 11, the horizontal frame attachments 41 and 42 consist of an attachment body 45A, an attachment cover 46A, and a cap 47, and are elongated members that run along the longitudinal direction of the upper frame 11 and lower frame 12. Since the attachment body 45A has the same configuration as the attachment body 45, it is given the same reference numeral and its description is omitted. Note that the external shade 7, which is the external layer in this embodiment, is attached to the vertical frame attachments 43 and 44 and not to the horizontal frame attachments 41 and 42, so the attachment body 45A does not have screw holes for attaching the external layer. Furthermore, as shown in Figure 10, an opening 456 is formed on the exterior surface 451 of the attachment body 45A, on the side of the vertical frame attachment 44 and on the side of the vertical frame attachment 43, relative to the center in the left-right direction. On the interior surface 452, a through hole 458 and an engagement hole 457A are formed at the position corresponding to the opening 456 on the vertical frame attachment 44 side, and a through hole 459 and an engagement hole 457B are formed at the position corresponding to the opening 456 on the vertical frame attachment 43 side.

[0023] Since the attachment cover 46A has the same configuration as the attachment cover 46, it is given the same reference numeral and its description is omitted. Note that since the attachment body 45A does not have screw holes for attaching the external layer, the attachment cover 46A also does not have through holes.

[0024] The cap 47 is made of synthetic resin and, as shown in Figures 10 and 11, is attached to the left and right ends of the attachment body 45A and covers both the upper and lower ends of the vertical frame attachments 43 and 44. The cap 47 has an outer surface 471, an inner surface 472 facing the end of the attachment body 45A, an outer surface 473 that is outside the inner surface 472 and facing the inner surface 472, and an outer surface 474 facing the upper and lower ends of the vertical frame attachments 43 and 44. The inner surface 472 has a mounting portion 475 that is press-fitted into the hollow part of the attachment body 45A. The cap 47 of the horizontal frame attachment 41 is open on the bottom and the interior side, and as shown in Figure 10, the upper ends of the vertical frame attachments 43 and 44 can be placed inside the cap 47. Similarly, the cap 47 of the horizontal frame attachment 42 is open on the top and the interior side, and as shown in Figure 10, the lower ends of the vertical frame attachments 43 and 44 can be placed inside the cap 47. In this case, the cap 47 is manufactured to a size that ensures a gap between the upper and lower ends of the vertical frame attachments 43 and 44 and the cap 47. This gap prevents the cap 47 and the vertical frame attachments 43 and 44 from interfering with each other and causing deformation, even if the attachment bodies 45 and 45A undergo thermal expansion and contraction. As described above, as shown in Figure 3, the attachment 4, which consists of four attachments—horizontal frame attachments 41 and 42, and vertical frame attachments 43 and 44—is attached to the exterior surface of the door frame 10 in a rectangular frame shape.

[0025] [External Layer] As shown in Figures 1 and 2, an external shade 7 is attached to attachment 4 as an external layer (window surround component). To attach the exterior shade 7 to the door frame 10, the bracket 76 of the exterior shade 7 is attached to the top of the vertical frame attachments 43 and 44 with screws 62, as shown in Figure 12. The bracket 76 is made of metal and comprises a main body 761, a locking piece 762, and a connecting piece 763. The main body portion 761 has a pair of through holes 764 through which screws 62 are inserted. The locking piece 762 extends from the upper end of the main body 761 toward the outside, further extends upward, and further extends diagonally upward. The connecting piece 763 extends diagonally upward toward the outside from the lower end side of the main body 761, and has a through hole 765 for screw insertion. Then, the bracket 76 is fixed to the vertical frame attachments 43 and 44 as shown in Figure 13 by screwing the screws 62 into the screw holes 455 of the attachment body 45 through the through holes 764 of the bracket 76 and the through holes 463 of the attachment cover 46. The bracket 76 fixed to the vertical frame attachments 43 and 44 is symmetrical in shape so that the connecting piece 763 is positioned on the inner circumference side.

[0026] Next, as shown in Figure 13, the external shade 7 is attached to the bracket 76. As also shown in Figures 1 and 2, the external shade 7 comprises a shade case 71, a shade body 73 that is retractable and untractable on a winding shaft 72 inside the shade case 71, an end member 74 attached to the lower end of the shade body 73, and a hook 75 for locking the end member 74. As also shown in Figure 13, the shade case 71 comprises a shade box 711 and end caps 715 attached to the left and right ends of the shade box 711.

[0027] Next, as shown in Figure 14, the locking piece 762 of the bracket 76 is inserted into the locking groove 712 formed on the upper indoor side of the shade box 711, thereby locking the shade box 711. The connecting piece 763 of the bracket 76 is then brought into contact with the shade box 711, and the screw 64 inserted through the through hole 765 is screwed into the back plate 713 housed in the groove on the lower indoor side of the shade box 711. As a result, the shade box 711, or shade case 71, is attached to the attachment 4 via the bracket 76. Furthermore, the hook 75 is attached to the lower end of the vertical frame attachments 43 and 44 by screws 62, as shown in Figure 13. As described above, the external shade 7, which is the external layer, is attached to the door frame 10 via the attachment 4.

[0028] [Effects of the First Embodiment] According to the first embodiment, since the external shade 7, which is the external layer, is attached to the attachment 4, there is no need to process mounting holes for the external layer in the door frame 10. This prevents processing errors such as incorrect placement of mounting holes in the door frame 10, and prevents damage to the door frame 10 during processing, thus reducing the risk of replacing the door frame 10. Furthermore, since the attachment 4 can be attached to the backing plate member 30 attached to the door frame 10 with screws 61, the attachment 4 can be easily attached to the door frame 10. Furthermore, since the exterior shade 7 is attached to attachment 4 and not to the exterior wall, there is no need to process mounting holes in the exterior wall or to waterproof the mounting hole area. This improves the ease of installation of the exterior shade 7, allowing it to be installed in a short amount of time.

[0029] The horizontal frame attachments 41 and 42 of attachment 4 are not directly connected to the vertical frame attachments 43 and 44. A gap is provided between the vertical frame attachments 43 and 44 and the horizontal frame attachments 41 and 42. This prevents the attachments 41 to 44 from colliding and deforming with each other even if they undergo thermal expansion or contraction. Furthermore, the caps 47 attached to the ends of the horizontal frame attachments 41 and 42 cover the gaps between the vertical frame attachments 43 and 44 and the horizontal frame attachments 41 and 42, as well as the ends of the vertical frame attachments 43 and 44, thereby improving the aesthetic appearance of the attachment 4.

[0030] Each attachment 41-44 has a round through-hole 458 and an engagement hole 457A whose longitudinal dimension is set to match the thickness of the backing plate 31 at one end (either left or right, or top or bottom), and an elongated through-hole 459 and an engagement hole 457B with a longer longitudinal dimension at the other end. This eliminates the effect of thermal expansion and contraction differences between the synthetic resin door frame 10 and the metal attachments 41-44, preventing the screws 61 from loosening and the door frame 10 and each attachment 41-44 from deforming.

[0031] Since the attachment bodies 45 and 45A of each attachment 41 to 44 are formed in a hollow cylindrical shape, the rigidity of each attachment 41 to 44 can be improved. Therefore, when the external layer is attached to the attachment bodies 45 and 45A, deformation of each attachment 41 to 44 can be prevented, and the mounting strength of the external layer can be improved. Furthermore, since the outdoor surfaces 451 of the attachment bodies 45 and 45A are covered by attachment covers 46 and 46A, the backing plate member 30, the opening 456, the through holes 458 and 459, the engagement holes 457A and 457B, etc., are prevented from being exposed to the outside, thereby improving the aesthetic appearance.

[0032] The backing plate member 30 rotates the insertion pieces 311 of the two backing plates 31 in the vertical and horizontal directions to contact the interior surface of the exterior surface 151. Therefore, even if the size of the hollow portion 17 of the window frame body 15 and the size of the insertion hole 152 are small, a large area of ​​the insertion piece 311 can be placed within the hollow portion 17. As a result, the holding area of ​​the insertion piece 311 can be made larger than that of a turn nut, preventing the tightening of the screw 61 from loosening even when opening and closing the shade body 73 of the exterior shade 7, and improving the holding force of the attachment 4.

[0033] [Second Embodiment] The second embodiment of the joinery 1B will be described with reference to Figures 15 and 16. Figure 15 is a vertical cross-sectional view of the joinery 1B, and Figure 16 is a horizontal cross-sectional view of the joinery 1B. Door 1B is an exterior layer that replaces the exterior shade 7 with a movable louver 8. In door 1B, the door frame 10, the sash 20, and the attachment 4 are the same as in the first embodiment, so their description is omitted. The movable louver 8 comprises a rectangular frame 81 and a plurality of rotatable louver blades 82 arranged vertically on the frame 81. The frame 81 of the movable louver 8 is attached to the attachment 4 via a bracket 85. The bracket 85 has a projection portion 851, an indoor facing portion 852, and an outdoor facing portion 853, and is formed in a roughly Z-shape in cross-section.

[0034] The interior facing portion 852 is fixed to the attachment 4 by screws 62. The exterior facing portion 853 is fixed to the frame 81 by screws 86 that are screwed into a back plate 87 provided on the frame 81.

[0035] In the second embodiment of the joinery 1B, the movable louvers 8, which are the outer layer, are attached to the joinery frame 10 by the attachment 4, so the same effects as in the first embodiment can be achieved.

[0036] [Third Embodiment] The third embodiment of the joinery 1C will be described with reference to Figures 17 and 18. Figure 17 is a vertical cross-sectional view of joinery 1C, and Figure 18 is a horizontal cross-sectional view of joinery 1C. Door 1C differs from door 1 of the first embodiment in that the attachment bodies 45 and 45A of the horizontal frame attachments 41 and 42 and the vertical frame attachments 43 and 44 are provided with a screen door pocket 453C for holding a screen door (not shown). For this reason, components identical to those in door 1 are given the same reference numerals and their descriptions are omitted. The screen door pocket section 453C extends inward from the attachment bodies 45 and 45A and forms a retaining groove that opens to the interior side. By pushing the base of the screen door into the screen door pocket section 453C, the screen door is held in place by the screen door pocket section 453C. Therefore, in addition to the function of attaching the outer layer, the attachment 4 of the joinery 1C also has the function of holding the screen door.

[0037] In the third embodiment of the joinery 1C, the external shade 7, which is the external layer, is attached to the joinery frame 10 with the attachment 4, so the same effects as in the first embodiment can be achieved. In addition, since the attachment 4 is equipped with a screen door pocket 453C, it can also be used to hold the screen door.

[0038] [Differentiation] The present invention is not limited to the configurations of the embodiments described above. For example, the materials of the door frame, vertical frame attachment, and horizontal frame attachment are not limited to the embodiments described above. The door frame may be made of a metal such as aluminum, and the vertical frame attachment and horizontal frame attachment may be made of synthetic resin, or they may be made of different materials. Alternatively, the door frame, vertical frame attachment, and horizontal frame attachment may be made of the same material, such as a metal such as aluminum or synthetic resin. In other words, even if the door frame, vertical frame attachment, and horizontal frame attachment are made of the same material, by attaching an external layer to each attachment, they are not directly attached to the door frame, thus preventing damage to the door frame due to processing errors. Furthermore, if the door frame, vertical frame attachment, and horizontal frame attachment are made of different materials, processing errors can be prevented, the effects of thermal expansion and contraction differences can be eliminated, and deformation and damage to the door frame and each attachment can be prevented.

[0039] The vertical frame attachments 43, 44 and the horizontal frame attachments 41, 42 are not limited to being attached to the door frame 10 via the backing plate member 30, but may also be directly fixed to the door frame 10 with screws. Furthermore, the fastening members that fix the vertical frame attachments 43, 44 and the horizontal frame attachments 41, 42 to the door frame 10 are not limited to screws, but may also be rivets. Similarly, the fastening members that fix the outer layer to the attachment 4 are not limited to screws, but may also be rivets. The attachment is not limited to one in which two vertical frame attachments 43, 44 and two horizontal frame attachments 41, 42 are arranged in a four-sided frame. For example, the upper horizontal frame attachment 41 and the left and right vertical frame attachments 43, 44 may be arranged in a three-sided frame. Therefore, the attachment can also be attached to a door frame consisting only of the upper frame and the left and right vertical frames.

[0040] The cap 47 was attached to the horizontal frame attachments 41 and 42, but it may also be attached to the vertical frame attachments 43 and 44. Furthermore, the configuration of the cap 47 is not limited to that of the above embodiment; it is acceptable as long as it can cover the gap between the horizontal frame attachments 41 and 42 and the vertical frame attachments 43 and 44, and can also cover the ends of attachments to which the cap 47 is not attached.

[0041] The external layer is not limited to external shades 7 or movable louvers 8, but may also include various types of louvers, privacy screens, window grilles, shutters, awnings, etc. The joinery is not limited to the inward-opening, tilt-and-turn window of the above embodiment, but may also include windows in which the sash opens and closes inward, such as inward-opening windows, windows in which the sash slides in the left-right or up-down direction, such as sliding windows, single-hung windows, and double-hung windows, as well as fixed windows, etc. Furthermore, the fixtures may include windows with shoji screens that open outwards, such as outward-opening windows, or doors used for people to enter and exit, such as front doors or back doors. In this case, the external layer can be a shade that can be stored inside a case, allowing the shoji screens or doors to be opened and closed and people to enter and exit, or an awning that can be installed in a location that does not interfere with the opening and closing of the shoji screens or doors.

[0042] [summary] The present invention relates to an attachment used for attaching an external layer to a door frame having vertical and horizontal frames, comprising: a vertical frame attachment attached to the vertical frame; a horizontal frame attachment attached to the horizontal frame; and a cap attached to the end of either the vertical frame attachment or the horizontal frame attachment, wherein there is a gap between the vertical frame attachment and the horizontal frame attachment, and the cap covers the other end of the vertical frame attachment and the gap. According to the present invention, external layers can be attached to vertical and horizontal frame attachments mounted on the door frame, eliminating the need to directly attach the external layers to the door frame. This eliminates the need to process the door frame for different connecting parts for each external layer, preventing processing errors and damage to the door frame during processing. Consequently, the risk of having to replace the door frame is also reduced. Furthermore, since the attachment includes both vertical and horizontal frame attachments, various types of external layers can be attached. Therefore, the structure for attaching the attachment to the door frame can be standardized regardless of the type of external layer, making it easy to attach the attachment to the door frame and preventing processing errors. Furthermore, a gap is ensured between the vertical and horizontal frame attachments, and this gap is covered by a cap. This prevents the attachments from colliding and deforming even if they undergo thermal expansion or contraction relative to the door frame. Additionally, the cap is attached to the end of one of the vertical or horizontal frame attachments, covering the end of the other attachment. This prevents the ends of each attachment from being exposed, thus preventing a decrease in aesthetic appeal.

[0043] In the attachment of the present invention, it is preferable that the door frame is configured in a rectangular frame shape with horizontal frames arranged vertically and horizontal frames arranged horizontally, the vertical frame attachments are attached to the left and right vertical frames respectively, and the horizontal frame attachments are attached to the upper and lower horizontal frames respectively. According to the present invention, the attachment comprises left and right vertical frame attachments and top and bottom horizontal frame attachments, allowing various types of external layers to be attached.

[0044] In the attachment of the present invention, it is preferable that the vertical frame attachment and the horizontal frame attachment are provided with a screen door pocket portion on which a screen door can be attached. According to the present invention, the attachment can be used for both attaching the outer layer and installing the screen door, thus reducing the number of parts and lowering costs compared to the case where a separate screen door frame is provided in addition to the attachment.

[0045] In the attachment of the present invention, the vertical frame attachment and the horizontal frame attachment comprise an attachment body and an attachment cover, wherein the attachment body comprises an outdoor surface, an indoor surface, two sides connecting the outdoor surface and the indoor surface, and a locking piece for locking the attachment cover, the indoor surface has a first through-hole for attachment to the door frame, the outdoor surface has an opening that exposes the through-hole of the indoor surface to the outdoor side, and a second through-hole for attachment of the outer layer, and the attachment cover preferably comprises a plate-like portion that covers the outdoor surface of the attachment body from the outdoor side, a claw portion that locks onto the locking piece, and a third through-hole formed at a position corresponding to the second through-hole. According to the present invention, each attachment can be attached to a door frame using fastening members such as screws or rivets through an opening on the exterior surface and a first through-hole on the interior surface of the attachment body. Furthermore, since the exterior surface of the attachment body can be covered with the attachment cover, the opening and the first through-hole can be prevented from being exposed to the outside, thereby improving the aesthetic appearance. In addition, the outer layer can be attached by screwing a screw into a second through-hole formed on the exterior surface of the attachment body through a third through-hole in the attachment cover, so the outer layer can be easily attached to the attachment.

[0046] The building fitting of the present invention is characterized by comprising a building fitting frame, an attachment, and an external layer attached to the attachment. According to the present invention, since the attachment is used, the risk of having to replace the door frame due to processing errors can be reduced, and various types of external layers can be easily attached.

[0047] In the joinery of the present invention, it is preferable that the joinery frame is a resin frame made of synthetic resin, the vertical frame attachment and the horizontal frame attachment are made of metal, and the cap is made of synthetic resin. According to the present invention, since the door frame is made of resin, the thermal insulation performance can be improved. Furthermore, since the vertical and horizontal frame attachments are made of metal, various external layers themselves and connecting parts for external layers can be easily attached with screws or the like. In addition, since the caps are made of synthetic resin, they do not damage the attachments and improve the aesthetic appearance. [Explanation of Symbols]

[0048] 1...Joinery, 1B...Joinery, 1C...Joinery, 4...Attachment, 7...Exterior Shade, 8...Movable Louver, 10...Joinery Frame, 11...Upper Frame, 12...Lower Frame, 13...Vertical Frame, 14...Vertical Frame, 20...Shoji Screen, 30...Backing Board Component, 31...Backing Board, 41...Horizontal Frame Attachment, 42...Horizontal Frame Attachment, 43...Vertical Frame Attachment, 44...Vertical Frame Attachment, 45...Attachment Body, 45A...Attachment Body, 46...Attachment Cover, 46A...Attachment Cover, 47...Cap, 6 1...screw, 62...screw, 64...screw, 71...shade case, 75...hook, 76...bracket, 82...louver blade, 85...bracket, 86...screw, 153...through hole, 312...screw hole, 451...outside surface, 452...inside surface, 453...side, 453C...screen door pocket section, 454...locking piece, 455...screw hole, 456...opening, 458...through hole, 459...through hole, 461...plate-like section, 462...claw section, 463...through hole, 471...outside surface, 762...locking piece, 764...through hole, 765...through hole.

Claims

1. An attachment used to attach an external layer to a door frame having vertical and horizontal frames, A vertical frame attachment that is attached to the aforementioned vertical frame, A horizontal frame attachment that is attached to the aforementioned horizontal frame, It comprises a cap attached to the end of either the vertical frame attachment or the horizontal frame attachment, There is a gap between the vertical frame attachment and the horizontal frame attachment. The cap covers the gap between the other end of the vertical frame attachment and the horizontal frame attachment. An attachment characterized by the following:

2. In the attachment described in claim 1, The aforementioned door frame is constructed in a rectangular shape by the horizontal frames arranged vertically and the vertical frames arranged horizontally. The aforementioned vertical frame attachments are attached to the left and right vertical frames, respectively. The aforementioned horizontal frame attachments are attached to the upper and lower horizontal frames, respectively. An attachment characterized by the following:

3. In the attachment described in claim 1, The vertical frame attachment and the horizontal frame attachment are characterized by having a screen door pocket portion on which a screen door can be attached.

4. In the attachment described in claim 1, The aforementioned vertical frame attachment and the aforementioned horizontal frame attachment are It consists of an attachment body and an attachment cover. The attachment body comprises an exterior surface, an interior surface, two sides connecting the exterior surface and the interior surface, and a locking piece for securing the attachment cover. A first through-hole for attachment to the door frame is formed in the interior surface. The exterior surface has an opening that exposes the through-hole of the interior surface to the exterior, and a second through-hole for attaching the exterior layer. The attachment cover comprises a plate-shaped portion that covers the exterior surface of the attachment body from the outside, a claw portion that engages with the locking piece, and a third through-hole formed at a position corresponding to the second through-hole. An attachment characterized by the following:

5. Door frame and An attachment according to any one of claims 1 to 4, The attachment comprises an external layer attached to the aforementioned attachment. A type of joinery characterized by its features.

6. In the joinery described in claim 5, The aforementioned door frame is a resin frame made of synthetic resin, The vertical frame attachment and the horizontal frame attachment are made of metal. The aforementioned cap is made of synthetic resin. A type of joinery characterized by its features.

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