Door and window frame structure

Abstract

To provide a fitting frame structure in which a supporting frame member to be attached for reinforcement to a frame body such as a three-way frame or a four-way frame can be attached and detached by flameless vaporization during a period from manufacturing to immediately before attaching to a building skelton, thereby improving workability, improving safety, and shortening a required time.SOLUTION: A structure of a fitting frame 11, having a frame body 17 mounted on an inner peripheral edge 23 of an opening 15 of a building skeleton 13, in which the frame body 17 has at least a pair of right and left vertical frames 25 and an upper frame 27 bridging the upper ends of the vertical frames 25 in a fixing manner, and also has a support frame member 19 bridging on the lower ends of the pair of right and left vertical frames 25. The support frame member 19 is a temporary member whose ends are secured to the lower ends of the pair of vertical frames 25 on either side with fastening members, and which is removed from the vertical frames 25 by removing the fastening members 21 when the frame 17 is mounted to the opening 15.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a structure of a door frame. [Background technology]

[0002] To assemble an opening / closing device such as a door or sliding door into an opening in a building framework, a framework (hereinafter simply referred to as a "frame") is constructed in the opening (see Patent Document 1, etc.). The framework is fixed to the building framework and is a so-called three-sided frame consisting of an upper frame and a pair of vertical frames on the left and right. The upper frame and the upper ends of the vertical frames are connected and fixed in advance in a factory. The framework is shipped in this fixed state and then assembled to the building framework at a construction site. However, because the lower ends of the vertical frames are not connected and the framework is not rectangular, the three-sided frame has an unstable structure in terms of strength. For this reason, a temporary frame is attached between the lower ends of the vertical frames in the factory. The temporary frame is fixed to the bottom of the framework from the completion of manufacturing in the factory until storage, transportation, and immediately before installation to the building framework, and is then removed during construction. The structure of the framework with this temporary frame attached as a temporary material allows the framework to be attached to the building framework without deformation or damage caused by external forces acting during storage, transportation, etc. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2002-147121 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the past, welding was generally used to connect and secure the temporary frame and vertical frame. In recent years, welding work has become increasingly cumbersome due to stricter work environment management, such as the mandatory wearing of dust masks. Furthermore, because welding involves the use of open flames, a fire-free process is desirable from the perspective of fire prevention. In addition, door and window frames require the removal of the temporary frame from the vertical frame on-site, which requires cutting and finishing the welded area with a sander (disc grinder), making this process complicated. Furthermore, using this sander also involves the use of open flames, so a fire-free process is also desirable in this respect.

[0005] The present invention has been made in consideration of the above circumstances, and its purpose is to provide a door and window frame structure that allows support frame members, which are attached for reinforcement to frame bodies such as three-sided or four-sided frames, to be attached and removed without fire or vaporization from the time of manufacture until just before attachment to the building frame, thereby improving workability, improving safety, and shortening the required time. [Means for solving the problem]

[0006] Next, means for solving the above problems will be described with reference to the drawings corresponding to the embodiments. The structure of the fitting frame according to claim 1 of the present invention is a fitting frame structure having a frame body 17 attached to the inner peripheral edge 23 of the opening 15 of the building skeleton 13, The frame body 17 has at least a pair of left and right vertical frames 25 (99), an upper frame 27 that is bridged and fixed to the upper ends of the vertical frames 25 (99), and a support frame member 19 that is bridged to the lower ends of the pair of left and right vertical frames 25 (99), The support frame member 19 is a temporary material whose both ends are fixed to the lower ends of the pair of left and right vertical frames 25 (99) by fastening members 21, and which is removed from the vertical frames 25 (99) by removing the fastening members 21 when attaching the frame body 17 to the opening 15. 、 A lower frame is connected and fixed to the lower ends of the pair of left and right vertical frames 25, and the width in the inward and outward directions across the opening 15 is narrower than the width of the vertical frames 25 in the same direction. The support frame member 19 is attached to the lower ends of the pair of left and right vertical frames 25 along this lower frame. It is characterized by:

[0007] In this door and window frame structure, a long support frame member 19 is spanned between the lower ends of a pair of left and right vertical frames 25 (99) in the frame body 17, and both ends of the support frame member 19 are fastened to the lower ends of each vertical frame 25 (99) with fastening members 21. As a result, the three-sided and four-sided frames are connected and fixed by the support frame members 19 between the lower ends of the vertical frames 25 (99), which would otherwise be open or weak, and are framed into a high-strength closed rectangle. Therefore, the three-sided and four-sided frames can be attached to the building skeleton 13 in a state where they will not be deformed or damaged by external forces acting on them during storage or transportation. Furthermore, the support frame members 19 that connect the lower ends of the pair of left and right vertical frames 25 (99) of the frame body 17 are fastened at both ends with fastening members 21. This means that no welding is required at the manufacturing site or the building frame installation site, i.e., there is no fire, and they can be installed and removed using only the fastening and unfastening tools for the fastening members 21. In particular, at the building frame installation site, they can be easily removed with just a screwdriver. This eliminates the need to use a sander or grinder to remove the support frame members 19, which are welded at both ends, on site. This also eliminates the need for the complicated process of removing the support frame members 19 with a sander and then grinding them with a grinder to perform rust prevention repairs, thereby significantly improving the efficiency of construction. Furthermore, in the structure of this door and window frame 11, the frame body 17 is a four-sided frame with a lower frame that acts as a slipstop at the bottom edge. The slipstop is a member that is formed with a narrow width in the inward and outward directions that sandwich the opening 15, which is narrower than the width of the vertical frames 25 in the same direction. The upper frame 27 has a cross-sectional shape that is roughly the same as the vertical frames 25, but the lower frame that acts as a slipstop is narrow and has a different structure for fixing to the building side than the upper frame 27 and vertical frames 25, so even though it is a four-sided frame, it cannot be said to have a strong fixing structure. Therefore, in the structure of this fitting frame 11, support frame members 19 are attached along the thin bottom frame to span the lower ends of the vertical frames 25 as reinforcement. This allows a four-sided frame with a weak bottom frame at the bottom edge to be framed into a strong rectangle. Therefore, it can be attached to the building skeleton 13 in a state where it will not be deformed or damaged by external forces acting on it during storage or transportation. As described above, both ends of the support frame member 19 are fastened to the lower ends of the vertical frames 25 by the fastening members 21, so that it can be attached and detached using only the fastening / unfastening tool for the fastening members 21. This eliminates the troublesome work involved in welding.

[0008] The structure of the fitting frame described in claim 2 of the present invention is the structure of the fitting frame described in claim 1, characterized in that the mounting hole position of the vertical frame 25 (99) to which the fastening member 21 is fastened is a position that is buried under the floor surface 35 when the floor 31 is formed after the frame body 17 is fixed to the building structure 13.

[0009] In this structure of the fitting frame, the mounting holes for fastening the support frame member 19 to the lower end of the vertical frame 25 (99) with the fastening members 21 are recessed below the floor surface 35. For example, in the case of a door frame, the mounting holes are recessed approximately 15 mm below the floor surface 35 from the floor 31. Therefore, even if mounting holes are provided on the side of the vertical frame 25 (99), the area extending approximately 15 mm upward from the lower end of the vertical frame 25 (99) will not be visible. In this case, for example, a female thread is formed on the lower end of the side of the vertical frame, and through holes 59 are drilled on both ends of the support frame member 19. This allows the support frame member 19 to be easily attached and detached from the side of the vertical frame 25 (99). Furthermore, this structure of the fitting frame does not require a special fixing part (e.g., anchor member 39) to fix the support frame member 19, and the support frame member 19 can be fixed directly to the vertical frame 25 (99).

[0010] The structure of the fitting frame according to claim 3 of the present invention is a fitting frame structure having a frame body 17 attached to the inner peripheral edge 23 of the opening 15 of the building skeleton 13, The frame body 17 includes at least the pair of left and right vertical frames 25, an upper frame 27 that is bridged and fixed to the upper ends of the vertical frames 25, and a support frame member 19 that is bridged to the lower ends of the pair of left and right vertical frames 25, The vertical frame 25 is provided with an anchor member 37 on a surface facing the inner peripheral edge 23 of the opening 15 to fix the vertical frame 25 to the building skeleton side, The support frame member 19 is a temporary material whose both ends are fixed by fastening members 21 to anchor members 39 disposed at the lower ends of the pair of left and right vertical frames 25, and which is removed from the vertical frames 25 by removing the fastening members 21 when attaching the frame body 17 to the opening 15. 、 The anchor members 39 are provided with support pieces 41 that protrude inward from the vertical frames 25 and extend so that their front and back surfaces are aligned along the horizontal plane, and both ends of the support frame members 19 are fixed to the support pieces 41 of the anchor members 39 arranged at the lower ends of the pair of left and right vertical frames 25 with fastening members 21. It is characterized by:

[0011] In this door and window frame structure, long support frame members 19 are spanned between anchor members 39 provided at the lower ends of a pair of left and right vertical frames 25 of the frame body 17, and both ends of the support frame members 19 are fastened to each anchor member 39 with fastening members 21. As a result, the open or weak portions of the lower ends of the vertical frames 25 of the three-sided or four-sided frame are connected and fixed by the support frame members 19, framing the frame into a high-strength, closed rectangle. This allows the three-sided or four-sided frame to be attached to the building framework 13 without deformation or damage due to external forces acting during storage or transportation. Furthermore, because both ends of the support frame members 19 connecting the lower ends of the pair of left and right vertical frames 25 of the frame body 17 are fastened to the anchor members 39 with fastening members 21, installation and removal can be performed without welding at the manufacturing site or the building framework installation site, i.e., without fire, using only tools for fastening and unfastening the fastening members 21. In particular, at the building frame installation site, it can be easily removed with just a screwdriver. This eliminates the need to use a sander or grinder to remove the support frame members 19, which are welded at both ends, on-site. It also eliminates the need for the complicated process of removing the support frame members 19 with a sander and then grinding them with a grinder to repair rust, greatly improving the efficiency of construction work. The anchor members 39 to which the support frame members 19 are fastened are interposed members for connecting the frame body 17 and the building skeleton side. The anchor members 37 are arranged on the outer surface of the vertical frame 25 facing the building skeleton 13, not continuously along the vertical frame 25, but in multiples at predetermined intervals. Of the anchor members 39 to which the support frame members 19 are fixed, only the lowest anchor member 39 is used. The anchor member 39 may have no hole, i.e., no pilot hole 61, and the fastening member 21 may be a tapping screw. Alternatively, the pilot hole 61 may be drilled, and the tapping screw may be screwed into this pilot hole 61. In the structure of the building frame in which the support frame member 19 is fixed to the anchor member 39 of the frame body 17, the support frame member 19 is attached to the high-strength anchor member 39, which is a reinforcing material that is absolutely necessary for the frame body 17, with a fastening member 21, for example, by screwing it in place. This allows the length (dimension) of the support frame member 19 to be set based on the external dimensions of the frame body 17, eliminating the need for complicated processing of the support frame member 19. Furthermore, in this fixture frame structure, the anchor member 39 at the lowest end to which the support frame member 19 is fixed has a support piece 41 that extends so that its front and back surfaces follow the horizontal plane and protrudes inward from the vertical frame 25. This anchor member 39 is bent once to form an L shape. The bent portion of the anchor member 39 serves as a receiving portion for attachment, such as a screw receiving portion, and fastening members 21 that penetrate the support frame member 19 from below are fastened to it. The anchor member 39 does not have a hole, i.e., no pilot hole 61 is provided, and the fastening members 21 may be tapping screws instead. Alternatively, pilot holes 61 may be drilled and tapping screws may be screwed into them. In the structure of the fitting frame that fixes the support frame member 19 to the anchor member 39, one bend is added to the high-strength anchor member 39, which is a reinforcing material that is absolutely necessary for the frame body 17, and the support frame member 19 is fastened with a screw at the bent point, so that the length (dimension) of the support frame member 19 can be set according to the external dimensions of the frame body 17, eliminating the complicated processing of the support frame member 19. In addition, the fastening portion of the anchor member 39 is on the lower end face side of the vertical frame 25, so it will not be visible after the frame body 17 is attached to the building skeleton 13.

[0012] Claims of the invention 4 The structure of the described door frame is as follows: 3 The structure of the door frame according to The anchor member has the support piece and a vertical fixing piece perpendicular to the support piece, and is formed in an L-shaped cross section. It is characterized by:

[0013] In this fixture frame structure, the anchor member 39 at the lowest end to which the support frame member 19 is fixed is bent once to form an L-shape, so that the support piece 41 protrudes inward of the vertical frame 25. The bent portion of the anchor member 39 serves as a screw receiver, and the fastening member 21 that penetrates the support frame member 19 from below is fastened to it. The anchor member 39 does not have a hole, that is, no pilot hole 61 is provided, and the fastening member 21 may be a tapping screw. Alternatively, the pilot hole 61 may be drilled and a tapping screw may be screwed into it. In the structure of the fitting frame that fixes the support frame member 19 to the anchor member 39, one bend is added to the high-strength anchor member 39, which is a reinforcing material that is absolutely necessary for the frame body 17, and the support frame member 19 is fastened with a screw at the bent point, so that the length (dimension) of the support frame member 19 can be set according to the external dimensions of the frame body 17, eliminating the complicated processing of the support frame member 19. In addition, the fastening portion of the anchor member 39 is on the lower end face side of the vertical frame 25, so it will not be visible after the frame body 17 is attached to the building skeleton 13. [Effects of the Invention]

[0014] According to the structure of the door and window frame of the present invention as described in claim 1, the support frame members that are attached for reinforcement to a frame body such as a three-sided or four-sided frame from the time of manufacture until just before attachment to the building frame can be attached and removed without fire, thereby improving workability, improving safety, and shortening the required time.

[0015] According to the structure of the fitting frame described in claim 2 of the present invention, the mounting hole positions for attaching the support frame member to the vertical frame with fastening members are at the lower end of the vertical frame that is buried under the floor surface when the floor is formed, making it easy to attach and remove the fastening members without compromising the appearance after construction.

[0016] According to the structure of the fitting frame of the present invention as set forth in claim 3, the support frame members that are attached for reinforcement to a frame body such as a three-sided jamb or a four-sided jamb from manufacture to installation can be attached and removed without fire, thereby improving workability, safety, and reducing the required time. In addition, the support frame members use fastening members as anchor members for fixing the frame body to the building frame, so that the fastening members can be easily attached and removed without compromising the appearance after construction.

[0017] According to the structure of the door and window frame described in claim 4 of the present invention, the anchor members are arranged at a predetermined pitch along the vertical direction of the vertical frame, and the lowest one of them has a horizontal support piece bent once (in an L-shape). The end of the support frame member can be attached to this support piece from below with a fastening member. This allows the length (dimension) of the support frame member to be set based on the outer dimensions of the frame body, i.e., the dimensions from the outside of the left and right vertical frames. This eliminates the need for the conventional structure that requires the support frame member to be fitted between the left and right vertical frames, and reduces the complexity of processing the support frame member. Furthermore, the support frame member can be easily fixed to the lower end of the vertical frame, which can easily support the frame body's weight, improving the strength of the assembled frame. Furthermore, the support piece of the lowest anchor member is located at the mounting hole position, so the appearance of the frame after installation is not impaired.

[0018] According to the structure of the door and window frame described in claim 5 of the present invention, the anchor members are arranged at a predetermined pitch along the vertical direction of the vertical frame, and the lowest one of them has a horizontal support piece bent once (in an L-shape). The end of the support frame member can be attached to this support piece from below with a fastening member. This facilitates fastening of the support frame member to the anchor member, and the length (dimension) of the support frame member can be set based on the external dimensions of the frame body, i.e., the dimensions from the outside of the left and right vertical frames. This eliminates the need for the conventional structure that requires the support frame member to be fitted between the left and right vertical frames, and reduces the complexity of processing the support frame member. Furthermore, the support frame member can be easily fixed to the lower end of the vertical frame, which can easily support the frame body's weight, improving the strength of the assembled frame. Furthermore, the support piece of the lowest anchor member is located at the mounting hole position, preventing a deterioration in the appearance after installation.

[0019] According to the structure of the fitting frame of claim 6 of the present invention, in a three-sided frame that is prone to deformation immediately after manufacture, during storage, transportation, delivery to the site, and installation, the support frame member is fixed to the lower edge of the left and right vertical frames at the bottom side where there is no frame, thereby reinforcing the frame-free side and preventing deformation of the entire frame. In addition, the support frame member can be attached and removed simply by fastening and unfastening the fastening members, eliminating complicated work and greatly improving the efficiency of construction.

[0020] According to the structure of the fitting frame of claim 7 of the present invention, in the four-sided frame that is prone to deformation immediately after manufacture, during storage, transportation, delivery to the site, and installation, the support frame members are fixed along the lower edges of the left and right vertical frames to the lower edge where the weak lower frame is located, thereby reinforcing the weak lower frame and preventing deformation of the entire frame. In addition, the support frame members can be attached and removed simply by fastening and unfastening the fastening members, eliminating complicated work and greatly improving the efficiency of construction. [Brief explanation of the drawings]

[0021] [Figure 1] FIG. 1 is an exploded perspective view showing an outline of a fitting frame having the fitting frame structure of the first embodiment and an opening in a building skeleton to which the fitting frame is attached. [Figure 2] 2 is a partially cutaway front view of the lower part of the fitting frame shown in FIG. 1, seen from the outside of the opening. [Figure 3] FIG. 3 is a cross-sectional plan view of the lower part of the fitting frame shown in FIG. 2. [Figure 4] FIG. 2 is an exploded perspective view of a vertical frame, an anchor member, and a support frame member. [Figure 5] This is a cross-sectional plan view of the essential parts showing the structure of a fitting frame according to Modification 1 of the first embodiment, in which the shape of the vertical frame is different. [Figure 6] This is a cross-sectional plan view of the essential parts showing the structure of a fitting frame according to a second modification of the first embodiment, in which the shape of the vertical frame is different. [Figure 7] FIG. 10 is an exploded perspective view of the essential parts showing the structure of the fitting frame according to the second modified example. [Figure 8] FIG. 10 is a cross-sectional plan view of the main parts of a fitting frame having the structure of the fitting frame relating to the second embodiment. [Figure 9] FIG. 10 is an exploded perspective view of the main parts of a fitting frame having the structure of the fitting frame relating to the second embodiment. [Figure 10] FIG. 10 is a cross-sectional plan view of the essential parts of the structure of a fitting frame relating to variant 1 of the second embodiment. [Figure 11] FIG. 10 is a cross-sectional plan view of the essential parts of a fitting frame having the structure of a fitting frame relating to the third embodiment. [Figure 12] FIG. 12 is a side view of the main part of the fitting frame shown in FIG. DETAILED DESCRIPTION OF THE INVENTION

[0022] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an exploded perspective view showing a fitting frame 11 having a fitting frame structure according to the first embodiment and an outline of an opening 15 in a building skeleton 13 to which this fitting frame 11 is attached. In the structure of the fitting frame according to the first embodiment, the fitting frame 11 is made up of a frame body 17, support frame members 19, and screws 21 (see Figure 2) as fastening members. The fitting frame 11 has the frame body 17 attached to the inner peripheral edge 23 of the opening 15 in the building skeleton 13. The frame body 17 has at least a pair of left and right vertical frames 25, and an upper frame 27 that is fixed to and spans the upper ends of these vertical frames 25. The term "at least" means that the frame body 17 may also have a lower frame, which will be described later.

[0023] The building skeleton 13 has an opening 15 formed in, for example, a wall portion 29. In the first embodiment, the building skeleton 13 may have a floor 31 constructed thereon, or may be, for example, a slab 33 before the floor 31 is constructed. In other words, the door and window frame 11 may be constructed with its lower end resting on the floor 31, or may be constructed so that it is buried below the floor surface 35.

[0024] The door and window frame 11 is provided with anchor members 37 for fixing the vertical frame 25 to the building skeleton on the surface of the vertical frame 25 facing the inner peripheral edge 23 of the opening 15. The anchor members 37 are arranged on the outer surface of the vertical frame 25 facing the building skeleton 13, not continuously along the vertical frame 25, but at a predetermined interval, for example, every 500 mm. In the first embodiment, the frame body 17 is a three-sided jamb made up of an upper frame 27 and a pair of left and right vertical frames 25 that are fixed to and hang down from both ends of the upper frame 27.

[0025] FIG. 2 is a partially cutaway front view of the lower part of the door frame 11 shown in FIG. 1, seen from the outside of the opening 15. FIG. The fitting frame 11 is equipped with a support frame member 19 that is spanned across the lower ends of a pair of left and right vertical frames 25. Both ends of the support frame member 19 are fixed with screws 21 to the lowest anchor members 39 that are disposed at the respective lower ends of the pair of left and right vertical frames 25. The support frame member 19 is a temporary material that is removed from the vertical frames 25 by removing the screws 21 when attaching it to the opening 15 of the frame body 17.

[0026] The anchor members 39 are formed with support pieces 41 that protrude inward from the vertical frames 25 and extend so that their front and back surfaces are aligned along the horizontal plane. Both ends of the support frame member 19 are fixed with screws 21 to the support pieces 41 of the anchor members 39 that are disposed at the lower ends of the pair of left and right vertical frames 25.

[0027] FIG. 3 is a plan cross-sectional view of the lower part of the door frame 11 shown in FIG. The vertical frame 25 is formed in a generally rectangular cylindrical shape that is long in the vertical direction. The outer surface facing the inner peripheral edge 23 of the opening 15 is open by an open section 43 that is formed continuously from top to bottom. The vertical frame 25 has open edges 45 that are parallel to the wall thickness direction of the wall section 29 on both sides of the open section 43. One open edge 45 of the vertical frame 25 bends at a right angle to connect to a large edge 47 that is perpendicular to the wall thickness direction of the wall section 29. The other open edge 45 of the vertical frame 25 bends at a right angle to connect to a small edge 49 that is perpendicular to the wall thickness direction of the wall section 29. The large edge 47 and small edge 49 are connected to a large edge side inner panel 51 and a small edge side inner panel 53, which are bent at right angles toward each other. The large edge side inner panel 51 and the small edge side inner panel 53 are connected by an orthogonal step 55. The orthogonal step 55 forms a door stop for the door attached to the frame body 17.

[0028] The pair of left and right vertical frames 25 are formed to have symmetrical flat cross-sectional shapes. The upper frame 27 is formed to have the same cross-sectional shape as either one of the left and right vertical frames 25.

[0029] The anchor members 37 have a length that spans from one open edge 45 of the vertical frame 25 to the other open edge 45. All anchor members 37 except the lowest one are formed from rectangular plates parallel to the open edges 45, and are fixed vertically to the inner surface of the vertical frame 25, spanning from one open edge 45 to the other open edge 45. Meanwhile, the lowest anchor member 39 has an L-shaped cross section perpendicular to the longitudinal direction. In other words, it is an angle iron. The lowest anchor member 39 has a support piece 41, which is one of the L-shaped pieces, with the front and back surfaces extending along the horizontal plane. The other L-shaped piece of this lowest anchor member 39 is a vertical fixing piece 57 that is perpendicular to the support piece 41. All of the anchor members 37 (including anchor member 39) are secured across the open portion 43 of the vertical frame 25 by securing the vertical securing pieces 57 to the open edge 45.

[0030] The screws 21 that pass through the support frame member 19 from below are screwed into the support pieces 41 of the anchor member 39 at the lowest end. The inner edge panel 51 of each vertical frame 25 rests on the support frame member 19 that is fixed to the support pieces 41 of the anchor member 39. In other words, each vertical frame 25 can support a load on the support frame member 19. The support frame member 19 is made of a straight, long steel material or the like, and its length (dimension) can be set to be equal to the external dimension of the frame body 17, i.e., the dimension from the outside of each of the left and right vertical frames 25. This eliminates the need for the conventional configuration in which the support frame member 19 must be fitted between the left and right vertical frames 25 and welded to the inside of the left and right vertical frames 25. This eliminates the complicated process of lengthening the support frame member 19, which in turn reduces the precision at both ends in the longitudinal direction.

[0031] FIG. 4 is an exploded perspective view of the vertical frame 25, anchor member 39 and support frame member 19. As shown in FIG. The vertical frame 25 has vertical fixing pieces 57 of anchor members 39 fixed by welding to the open edges 45 thereof, sandwiching the open section 43. The support frame member 19 is fixed to the anchor member 39 fixed to the lowest end of the vertical frame 25 by threading screws 21, which have passed through holes 59 in the support frame member 19 from below, into pilot holes 61. Therefore, the support frame member 19 can be easily removed from the frame body 17 by unscrewing the screws 21 that have been threaded into the anchor members 39.

[0032] In this embodiment, the support frame member 19 is made of a steel material with a C-shaped cross section having a pair of parallel bent pieces, but is not limited to this and may be an L-shaped steel material. Furthermore, since the support frame member 19 is a temporary material that is removed from the vertical frame 25 by removing the screws 21 when attaching it to the opening 15, after removal it may be reused as a component of the new frame body 17 or the door and window frame 11. In particular, because it is fixed only with screws and not removed by cutting as in the past, the length of the support frame member 19 does not change, making it possible to reuse it.

[0033] FIG. 5 is a cross-sectional plan view of the essential parts showing the structure of a fitting frame according to Modification 1 of the first embodiment, in which the shape of the vertical frame 63 is different. The vertical frames 63 of the frame body 67 in the fitting frame 65 may be configured so that the open end edges 45 on both sides of the open portion 43 are connected to small edges 49, respectively. Small edge side inner panels 53 are connected to each small edge 49 in directions that approach each other. Each small edge side inner panel 53 is connected to a protrusion 69 via two orthogonal step portions 55. The protrusion 69 protrudes toward the center of the frame body 17 more than the small edge side inner panels 53. The protrusion 69 becomes a door stop for a door attached to the frame body 67.

[0034] In the structure of the fitting frame according to this modified example 1, the support frame member 19 is fixed to the support piece 41 of the anchor member 39 with the screw 21. The end of the convex portion 69 of the frame body 67 is placed on the support frame member 19 fixed to the support piece 41 of the anchor member 37. In other words, each vertical frame 63 can support the load on the support frame member 19.

[0035] FIG. 6 is a cross-sectional plan view of the essential parts showing the structure of a fitting frame according to Modification 2 of the first embodiment, in which the shape of the vertical frame 71 is different. The vertical frames 71 of the frame body 75 of the door frame 73 may have open edges 45 on both sides of the open section 43 positioned at different distances from the inner peripheral edge 23 of the opening 15. In other words, one open edge 45 may be offset toward the center of the frame body 75 relative to the other open edge 45. In this vertical frame 71, both open edges 45 are bent at right angles to connect to respective small edges 49 of the same width. One small edge 49 offset toward the center of the frame body 75 is bent at right angles to connect to the offset small edge side inner panel 77. The other small edge 49 is bent at right angles to connect to the small edge side inner panel 53. The offset small edge side inner panel 77 and the small edge side inner panel 53 are connected by an orthogonal step 55. The orthogonal step 55 forms a door stop for the door attached to the frame body 17.

[0036] Vertical fixing pieces 57 of anchor member 79 are fixed to one offset open edge 45 and the other offset open edge 45. The anchor member 79 in this second modification has a support piece 81, which is a small piece obtained by cutting out the support piece 41 described above, at the end closest to the offset small-edge side inner plate 77. The support piece 81 is formed to a size that fits inside the vertical frame 71, between the open edge 45 and the offset small-edge side inner plate 77. The support piece 81 may have a pilot hole 61 similar to that described above formed therein.

[0037] FIG. 7 is an exploded perspective view of a main part showing the structure of a fitting frame according to the second modification. The frame body 75 has a support piece 81 of an anchor member 79 fixed to its lower end, and a screw 21 passing through the through hole 59 of the support frame member 19 is screwed into the support piece 81 from below. The vertical frame 71 has its offset small-edge side inner panel 77 resting on the support frame member 19, which is fixed to the support piece 81 of the anchor member 79. In other words, each vertical frame 71 can support a load on the support frame member 19. The support frame member 19 is made of a straight steel material, and its length (dimension) can be set to be equal to the outer dimensions of the frame body 75. In the example shown in FIG. 6, the length is set to the left-right width of the frame body 75 at the open edge 45 on the offset small-edge side inner panel 77 side. With this structure of the door frame, the support piece 81 of the anchor member 79 is formed from a small piece. Therefore, as shown in FIG. 6, the anchor member 79 can be attached to the pair of offset open edges 45 of the frame body 75 without interference between the inner surfaces of the orthogonal step portions 55 and the support piece 41. The position of the support piece 81 is not limited to one end side of the vertical fixed piece 57, but may be provided at any position in the longitudinal direction of the vertical fixed piece 57, such as a position slightly inward.

[0038] Although the frame bodies 17, 67, and 75 in the above examples have been described as having three-sided frames, the structure of the door and window frame may also be a four-sided frame. In this case, a lower frame (not shown) is connected and fixed to the lower ends of a pair of left and right vertical frames 25, the lower frame having a narrow width in the inward and outward directions across the opening 15 that is narrower than the width of the vertical frames 25 in the same direction. In the door and window frame structure, support frame members 19 are attached to the lower ends of the pair of left and right vertical frames 25 along this lower frame. In this way, according to the door and window frame structure, by attaching the support frame members 19 along the narrow lower frame (kutsuzuri) and spanning the lower ends of the vertical frames 25, even a four-sided frame with a lower frame that is not strong enough at the bottom can be framed into a strong rectangle.

[0039] Next, the structure of a fitting frame according to the second embodiment will be described.

[0040] FIG. 8 is a plan cross-sectional view of a main part of a fitting frame 83 having a fitting frame structure according to a second embodiment. In the second embodiment, the same components and parts as those shown in FIGS. 1 to 7 are designated by the same reference numerals, and redundant explanations will be omitted. The fitting frame structure according to the second embodiment uses a vertical frame 71 that is substantially the same as that of Modification 2 of the first embodiment. The difference is the lowest anchor member 37 that is fixed to the vertical frame 71 of the frame body 85 in the fitting frame 83. In the fitting frame structure according to the second embodiment, all of the anchor members 37, including the lowest anchor member 37, are formed from the same rectangular plate. In other words, the lowest anchor member 37 only has a vertical fixing piece 57 and does not have a horizontal support piece 41 (see FIG. 4) integrated therein.

[0041] FIG. 9 is an exploded perspective view of a main part of a fitting frame 83 having the fitting frame structure according to the second embodiment. Meanwhile, L-shaped metal fittings 93 each consisting of an upright piece 89 and a horizontal fixing piece 91 are fixed to both longitudinal ends of the support frame member 87 of the fitting frame 83. With the horizontal fixing piece 91 fixed to the end of the support frame member 87, the upright pieces 89 of the L-shaped metal fittings 93 stand up from both ends of the support frame member 87. Through holes 59 are drilled in the upright pieces 89, through which screws 21 pass. Furthermore, pilot holes 61 into which the screws 21 are screwed may be drilled in the anchor member 37 at the lowest end.

[0042] In the door / window frame structure according to the second embodiment, the upright pieces 89 at both ends of the support frame member 87 are screwed into the pilot holes 61 of the lowest anchor member 37 by screws 21 that penetrate the through holes 59 from the outside. As a result, in this door / window frame structure, the three-sided frame is framed into a strong, closed rectangle by the support frame members 87 that are screwed into the lower ends of each vertical frame 71. After the screws 21 are unscrewed and the support frame members 87 are removed, the pilot holes 61 of the anchor members 37 are covered by the inner peripheral edge 23 of the opening 15 when the frame body 75 is fixed to the building skeleton 13. Therefore, even when the lower ends of the vertical frames 71 rest on the floor 35, the lower ends are not exposed, preventing a degraded appearance. Furthermore, because the screws 21 can be unscrewed laterally from the outer surface of the vertical frame 71, removing the screws 21 from the lower end surface of the vertical frame 71 makes removing the support frame members 87 easier than removing screws 21 that are screwed into the lower end surfaces of the vertical frames 71.

[0043] The L-shaped metal fittings 93 may be fixed to the support frame member 87 by welding, or may be fixed with screws or rivets. If fixed with screws, the number of parts increases as it is a separate structure from the screws 21 used for fixing to the anchor members 37, but it makes it possible to adjust the inclination of the L-shaped metal fittings 93 and also makes it possible to remove the support frame member 87 from the L-shaped metal fittings 93 while the L-shaped metal fittings 93 remain fixed to the anchor members 37.

[0044] FIG. 10 is a plan cross-sectional view of a main part of the structure of a fitting frame according to Modification 1 of the second embodiment. In the structure of the fitting frame according to the first modified example of the second embodiment, the fitting frame 95 includes a frame body 85 having a vertical frame 71. Two support frame members 87 are fixed to the anchor member 37 at the bottom of the vertical frame 71. The two support frame members 87 are arranged parallel to and spaced apart in the wall thickness direction of the wall 29. The vertical frames 71 are offset such that one of the pair of open edges 45 that sandwich the open portion 43 approaches the other on the left and right vertical frames 71. Therefore, of the two support frame members 87, the one attached to the offset side is shorter, and the one attached to the non-offset side is longer. This fitting frame structure can increase the strength of a frame body 85 having vertical frames 71 with a large dimension in the wall thickness direction of the wall 29. Note that, for vertical frames 71 with an even larger dimension in the wall thickness direction, a number of support frame members 87, such as three, may be attached to ensure sufficient strength.

[0045] In addition, in the example shown in Figure 10 where the support frame member 87 is made up of multiple members, this can also be applied to each of the above-mentioned embodiments and modified examples, and the support frame members 19 and 87 can be increased or decreased according to the dimensions and shape of the frame body 17, 67, 75, 85, such as the vertical frame, so as to obtain the strength required for the frame body.

[0046] Next, the structure of a fitting frame according to the third embodiment will be described.

[0047] 11 is a plan cross-sectional view of a main part of a fitting frame 97 having a fitting frame structure according to a third embodiment. In the third embodiment, the same members and parts as those shown in FIGS. 1 to 10 are designated by the same reference numerals, and redundant explanations will be omitted. The structure of the fitting frame according to the third embodiment is applied to a building skeleton 13 having, for example, a slab 33 before the floor 31 is constructed. That is, the fitting frame 97 is constructed with its lower end buried below the floor surface 35 (see FIG. 12). The fitting frame 97 has both ends of the support frame member 19 directly fixed to one of the small edges 49, which is the lower end of each of a pair of left and right vertical frames 99, with screws 21. Note that the vertical frame 99 differs from other vertical frames in that it is not necessary to provide an anchor member 37, anchor member 39, or anchor member 79 at the lowest end. This allows the fitting frame 97 to be manufactured at low cost.

[0048] FIG. 12 is a side view of the main part of the fitting frame 97 shown in FIG. In the structure of the fitting frame according to the third embodiment, the mounting holes (screw holes) of the vertical frame 25 into which the screws 21 are screwed are positioned so that they will be buried under the floor surface 35 when the floor 31 is formed after the frame body 75 is fixed to the building skeleton 13. When the fitting frame 97 is attached to the opening 15 of the frame body 75, the screws 21 are removed and the support frame members 87 are removed from the vertical frame 71.

[0049] Next, the operation of the above-described configuration will be described.

[0050] In the structure of the fitting frame according to this embodiment, a straight, long support frame member 19 is spanned between the lower ends of a pair of left and right vertical frames 25 of the frame body 17, and both ends of the support frame member 19 are screwed to the lower ends of each vertical frame 25 with screws 21. As a result, the three-sided and four-sided frames are connected and fixed by the support frame members 19 between the lower ends of the vertical frames 25, which would otherwise be open or weak, and are framed into a strong, closed rectangle. Therefore, the three-sided and four-sided frames can be attached to the building skeleton 13 in a state where they will not be deformed or damaged by external forces acting on them during storage or transportation.

[0051] The support frame members 19, which connect the lower ends of the pair of left and right vertical frames 25 of the frame body 17, are fastened at both ends with screws 21. This means that no welding is required at the manufacturing site or the building frame installation site, meaning that there is no fire involved, and they can be installed and removed using only a tool for fastening and unfastening the screws 21. In particular, at the building frame installation site, they can be easily removed with just a screwdriver. This eliminates the need to use a sander or grinder to remove the support frame members 19, which are welded at both ends, on site. This also eliminates the need for the cumbersome process of removing the support frame members 19 with a sander and then grinding them with a grinder to perform rust prevention repairs, significantly improving the efficiency of construction work.

[0052] Furthermore, with this door frame structure, the mounting holes for screwing the support frame member 19 to the lower end of the vertical frame 25 with the screws 21 are recessed below the floor surface 35. For example, a door frame is recessed about 15 mm below the floor 31. Therefore, even if mounting holes are provided on the side of the vertical frame 25, the area extending about 15 mm upward from the lower end of the vertical frame 25 will not be visible. In this case, a female thread is formed on the lower end of the side of the vertical frame, and through-holes 59 are drilled on both ends of the support frame member 19. This allows the support frame member 19 to be easily attached and detached from the side of the vertical frame 25. With this door frame structure, a special fixing part, such as an anchor member 39, to fix the support frame member 19 is not required, and the support frame member 19 can be fixed directly to the vertical frame. As a result, the mounting hole positions for screwing the support frame member 19 to the vertical frame 25 are at the lower ends of the vertical frame 25 that are buried under the floor surface 35 when the floor 31 is formed, making it easy to attach and remove the screws 21 without deteriorating the appearance after construction.

[0053] In addition, in this door and window frame structure, a straight, long support frame member 19 is spanned between anchor members provided at the lower ends of a pair of left and right vertical frames 25 in the frame body 17, and both ends of the support frame member 19 are screwed into each anchor member 39 with screws 21. As a result, the three-sided and four-sided frames are connected and fixed by the support frame members 19 between the lower ends of the vertical frames 25, which would otherwise be open or weak, and are framed into a strong, closed rectangle. Therefore, the three-sided and four-sided frames can be attached to the building skeleton 13 in a state where they will not be deformed or damaged by external forces acting on them during storage or transportation.

[0054] The support frame members 19, which connect the lower ends of the pair of left and right vertical frames 25 of the frame body 17, are fastened to the anchor members 39 at both ends with screws 21. This means that no welding is required at the manufacturing site or the building frame installation site, meaning there is no fire involved, and they can be installed and removed using only a tool to fasten and unfasten the screws 21. In particular, at the building frame installation site, they can be easily removed with just a screwdriver. This eliminates the need to use a sander or grinder to remove the support frame members 19, which are welded at both ends, on site. This also eliminates the need for the cumbersome process of sanding the support frame members 19 and then grinding them to perform rust prevention repairs, significantly improving the efficiency of construction work.

[0055] The anchor members 39 screwed into the support frame members 19 are interposed members for connecting the frame body 17 to the building skeleton side. The anchor members 39 are arranged on the outer surface of the vertical frame 25 facing the building skeleton 13, not continuously along the vertical frame 25, but in multiples at predetermined intervals. Of the anchor members 37 to which the support frame members 19 are fixed, only the lowest anchor member 39 is used.

[0056] The anchor member 39 may have no hole, i.e., no pilot hole 61, and the screw 21 may be a tapping screw. Alternatively, the pilot hole 61 may be drilled, and the tapping screw may be screwed into this pilot hole 61.

[0057] In a fixture frame structure in which the support frame members 19 are fixed to the anchor members 39 of the frame body 17, the support frame members 19 are fastened with screws to the high-strength anchor members 39, which serve as reinforcing materials essential to the frame body 17. This allows the length (dimensions) of the support frame members 19 to be set based on the external dimensions of the frame body 17, eliminating the need for complicated processing of the support frame members 19. As a result, the support frame members 19, which are attached for reinforcement purposes to the frame body 17, such as a three-sided or four-sided jamb, can be installed and removed without fire, thereby improving workability, safety, and reducing the required time. In addition, because the support frame members 19 are fastened with screws to the anchor members 39 that secure the frame body 17 to the building skeleton 13, installing and removing the screws 21 is easy while maintaining the appearance of the finished product.

[0058] Furthermore, in this fixture frame structure, the anchor member 39 at the lowest end to which the support frame member 19 is fixed has a support piece 41 that extends so that its front and back surfaces follow the horizontal plane and protrudes inward from the vertical frame 25. This anchor member 39 is bent once to form an L shape. The bent portion of the anchor member 39 serves as a screw receiver, and screws 21 that pass through the support frame member 19 from below are fastened into the anchor member 39. The anchor member 39 does not have a hole, i.e., no pilot hole 61 is provided, and the screws 21 may be tapping screws instead. Alternatively, pilot holes 61 may be drilled and tapping screws may be screwed into them.

[0059] In this door and window frame structure in which the support frame members 19 are fixed to the anchor members 39, a single bend is added to the high-strength anchor members 39, which are reinforcing materials necessarily required for the frame body 17, and the support frame members 19 are fastened to the bent portions with screws. This allows the length (dimensions) of the support frame members 19 to be set based on the external dimensions of the frame body 17, eliminating the need for complicated processing of the support frame members 19. Furthermore, because the screw-attached portions of the anchor members 39 are located on the lower end surface of the vertical frame 25, they are not visible after the frame body 17 is attached to the building skeleton 13. As a result, the anchor members 37 are arranged at a predetermined pitch along the vertical direction of the vertical frame 25, and the lowest one of them becomes a horizontal support piece 41 that has been bent once (in an L-shape). The end of the support frame member 19 can be fastened to this support piece 41 from below with a screw, allowing the support frame member 19 to be easily fastened to the lower end of the vertical frame 25, which can easily support the weight of the frame body 17. Furthermore, since the support piece 41 of the lowest anchor member 39 is the mounting hole position, the appearance after installation is not impaired.

[0060] Furthermore, in this door and window frame structure, the frame body 17 is a three-sided frame with no frame on the bottom side. In the door and window frame structure, this three-sided frame is framed into a high-strength closed rectangle by support frame members 19 screwed to the bottom ends of each vertical frame 25. Therefore, the frame body 17 can be attached to the building skeleton 13 in a state where it will not be deformed or damaged by external forces acting on it during storage or transportation.

[0061] As described above, the support frame member 19 is fastened at both ends to the lower ends of the vertical frames 25 with screws 21, so it can be attached and detached using only a tool for fastening and unfastening the screws 21. This eliminates the complicated work involved in welding. As a result, in a three-sided frame that is prone to deformation between immediately after manufacture and delivery to the site and installation, the support frame member 19 is fixed across the lower ends of the left and right vertical frames 25 to the lower edge where there is no frame, reinforcing the frame-free edge and preventing deformation of the entire frame body. Furthermore, because it can be attached and detached simply by fastening and unfastening the screws 21, it eliminates the complicated work and significantly improves the efficiency of construction.

[0062] Furthermore, in this structure of the fitting frame, the frame body 17 is a four-sided frame with a kutsuzuri attached to the bottom edge. The kutsuzuri is a member formed with a narrow width in the inward and outward directions that sandwich the opening 15, which is narrower than the width of the vertical frame 25 in the same direction. The upper frame 27 has almost the same cross-sectional shape as the vertical frame 25, but the lower frame that becomes the kutsuzuri is thin and not a sturdy structure, so even though it is a four-sided frame, it is not a rigidly fixed structure.

[0063] Therefore, in this fitting frame structure, support frame members 19 are attached along the thin bottom frame to span the lower ends of the vertical frames 25 as reinforcement. This allows a four-sided frame with a bottom frame that is not strong enough at the bottom edge to be framed into a strong rectangle. Therefore, it can be attached to the building skeleton 13 in a state where it will not be deformed or damaged by external forces acting on it during storage or transportation.

[0064] As described above, the support frame member 19 is fastened at both ends to the lower ends of the vertical frames 25 with the screws 21, and can therefore be attached and detached using only a tool for fastening and unfastening the screws 21. This eliminates the need for complicated welding work. As a result, in the four-sided frame, which is prone to deformation immediately after manufacture until delivery to the site and installation, the support frame member 19 is fixed along the lower edges of the lower frames, which have low strength, across the lower ends of the left and right vertical frames 25, thereby reinforcing the weak lower frames and preventing deformation of the entire frame body.

[0065] Therefore, according to the structure of the fitting frame of this embodiment, the support frame members 19 and support frame members 87 that are attached for reinforcement to the frame body 17, such as a three-sided or four-sided frame, from the time of manufacture until just before attachment to the building main body 13 can be attached and removed without using fire or vapor, thereby improving workability, improving safety, and shortening the required time. [Explanation of symbols]

[0066] 11,65,73,83,95,97...door and window frames 13...Building frame 15...Opening 17,67,75,85…frame body 19,87...Support frame member 21... Fastening member (screw) 23...Inner edge 25,63,71,99...Vertical frame 27...Upper frame 31...Floor 35...Floor 37, 39, 79...Anchor members 41...Support piece

Claims

1. A structure of a door and window frame having a frame body attached to the inner periphery of an opening in a building skeleton, The frame body has at least a pair of left and right vertical frames, an upper frame that is bridged and fixed to the upper ends of the vertical frames, and a support frame member that is bridged to the lower ends of the pair of left and right vertical frames, the support frame member is a temporary material whose both ends are fixed to the lower ends of the pair of left and right vertical frames by fastening members, and which is detached from the vertical frames by removing the fastening members when attaching the support frame member to the opening of the frame body; A structure of a door and window frame, characterized in that a lower frame that acts as a support is connected and fixed to the lower ends of the pair of left and right vertical frames, and has a narrow width in the inward and outward directions across the opening that is narrower than the width of the vertical frames in the same direction, and the support frame member is attached to the lower ends of the pair of left and right vertical frames along this lower frame.

2. The structure of the building frame described in claim 1, characterized in that the mounting hole position of the vertical frame to which the fastening member is fastened is a position that will be buried under the floor surface when the floor is formed after the frame body is fixed to the building structure.

3. A structure of a door and window frame having a frame body attached to the inner periphery of an opening in a building skeleton, The frame body has at least a pair of left and right vertical frames, an upper frame that is bridged and fixed to the upper ends of the vertical frames, and a support frame member that is bridged to the lower ends of the pair of left and right vertical frames, The vertical frame is provided with an anchor member on a surface facing the inner peripheral edge of the opening to fix the vertical frame to a building skeleton side, The support frame member is a temporary material whose both ends are fixed to anchor members disposed at the lower ends of the pair of left and right vertical frames by fastening members, and which is removed from the vertical frames by removing the fastening members when attaching the support frame member to the opening of the frame body; The anchor members are provided with support pieces that protrude inward from the vertical frames and extend so that their front and back surfaces are aligned along a horizontal plane, and both ends of the support frame members are fixed to the support pieces of each anchor member arranged at the lower ends of each of the pair of left and right vertical frames with fastening members.

4. The structure of the building frame described in Claim 3, characterized in that the anchor member has the support piece and a vertical fixing piece perpendicular to the support piece, and is formed with an L-shaped cross section.

Images