JP2020051112A - Method and structure for installing substructure of fitting frame, and fitting frame having substructure - Google Patents

Abstract

To provide a fitting frame having a substructure having a simple structure and good workability, and capable of adjusting the height dimension.SOLUTION: In a rectangular fitting frame having a substructure that is made up of a first frame body 6 at an upper side and a second frame body 7 at a lower side, the first frame body 6 and the second frame body 7 are elongated members extending in the width direction of the fitting frame, the first frame body 6 is fixed to a lower frame 4 of the fitting frame, and the second frame body 7 is temporarily fixed to the first frame body 6 in a state where the self-weight descending is regulated.SELECTED DRAWING: Figure 6

Description

The present invention relates to an installation method and a structure of a lower structure of a fitting frame, and a fitting frame provided with the lower structure.

The door device includes a four-peripheral door frame and a door rotatably attached to the door frame, and a lower frame (shoot sliding) of the door frame is substantially at the same level as the finished floor surface. In apartment houses such as condominiums, a so-called double floor, in which a finished floor surface is provided above and separated from the lower surface of the skeleton, may be employed. By forming a space below the finished floor surface, it is easy to pass pipes and wiring, and it is also possible to provide a vibration isolator using the space. In a door device installed in a building adopting a double floor, since a space is created between the lower frame and the lower surface of the frame, the lower structure of the door frame is closed so as to close this space and support the lower frame. Provided.

FIG. 11 illustrates a lower structure of a conventional door frame. An angle receiving member a having a U-shape in a side view is fixed to the lower surface of the lower frame 4 ′ of the door frame, and an outer hanging piece and an inner hanging piece of the angle receiving material a are L-shaped in a side view, respectively. The outer lower angle b and the inner lower angle b are temporarily fixed using mounting screws c (see FIG. 11A). A vertical hole e is formed in the vertical piece of the lower angle b, and at the site, the mounting screw c of the lower angle b is loosened and the lower angle b is lowered, so that the horizontal foot of the lower angle b is attached to the lower surface of the skeleton. 11 'and affixed with a screw d or an anchor (see FIGS. 11B and 11C). In this case, since the two lower angles b are fixed to the outer hanging piece and the inner hanging piece, respectively, work from outside and inside is required, and workability is deteriorated. In addition, if the adjustment allowance by the vertically long hole e is insufficient for the unevenness of the lower surface 11 'of the skeleton, on-site processing is separately required. For example, when the unevenness of the skeleton lower surface 11 ′ is large and the skeleton lower surface 11 ′ is inclined with respect to the finished floor surface 10 ′, the fixing using the vertically long holes e and the screws c does not There is a possibility that the positions do not match well, and additional work on site may be required (see FIG. 11D). Further, in apartment buildings such as condominiums, the height or depth of the lower space between the finished flooring 10 'and the lower surface 11' of the skeleton may be different for each floor, and cannot be accommodated by the adjustment allowance using the vertically long holes e. In some cases, each floor required a dedicated lower angle.

Patent Document 1 aims to provide a door frame structure to which a shoe slide can be retrofitted and a method of assembling the door frame structure. The lower frame member is fitted with a lower member having a concave body, and an upper member fitted to the lower member, the lower member is fixed to the slab, and the concave body is filled with a refractory material. A door frame without a lower frame material is erected on the upper surface of the slab, and a concave groove is formed on the upper surface of the slab between the vertical frames on which the lower frame material of the door frame is installed. A method of assembling a door frame structure, comprising: installing a lower member provided with: a refractory material in a concave body of the lower member; fitting an upper member; and fitting a shoe slide into the upper member. The feature is that a door frame without a shoe slide is used at the time of construction, and the lower end of the vertical frame is over the It extends to Ritosurabu.
Patent No. 4041807

An object of the present invention is to provide an installation method and a structure of a lower structure of a fitting frame, and a fitting frame, which have a simple structure, good workability, and easy adjustment of a height dimension. is there.

The technical means adopted by the present invention to solve such a problem are as follows:
Prepare a four-circle shaped fitting frame with a lower structure consisting of an upper first frame and a lower second frame,
The first frame and the second frame are long members extending in a width direction of the fitting frame,
The first frame body is fixed to a lower frame of the fitting frame,
The second frame is temporarily fixed to the first frame in a state where its own weight drop is restricted,
A fitting frame having a lower structure is attached to a predetermined position of the building, and at this time, the second frame and the lower surface of the skeleton are separated,
By canceling the weight drop regulation, the second frame is lowered by its own weight,
Fixing the second frame and the first frame in a state in which the second frame dropped by its own weight contacts the lower surface of the skeleton;
Installation method of the lower structure of the fitting frame.
In one aspect, the joinery frame is a door frame, and in the illustrated embodiment, an entrance door frame.

In one aspect, the first frame has an upper surface and at least one finding surface, and is fixed to the lower frame on the upper surface.
The second frame has a lower surface and at least one finding surface, and the lower surface contacts the lower surface of the skeleton,
The first frame body and the second frame body are combined so that the found surfaces form an overlapping portion to form the lower structure,
At the time of temporary fixing, the second frame is temporarily fixed to the first frame using a temporary fixing member at the overlapping portion,
Removing the temporary fixing member, lowering the second frame by its own weight,
In a state where the lower surface of the second frame is in contact with the lower surface of the skeleton, the second frame and the first frame are fixed at the overlapping portion using a fixing member.
In one aspect, the first frame has an upper surface, a first finding surface, and a second finding surface.
In one aspect, the second frame has a lower surface, a first finding surface, and a second finding surface.
In one aspect, the first frame further includes a first prospect surface and a second prospect surface.
In one aspect, the second frame further includes a first prospect surface and a second prospect surface.

In one aspect, the temporary fixing member is a screw, and the fixing member is a drill screw.
In one aspect, a first hole is formed in the finding surface of the first frame, and a second hole is formed in the finding surface of the second frame. The hole and the second hole coincide with each other at the overlapping portion at the time of temporary fixing.
In one aspect, one of the first hole and the second hole is a screw insertion hole, the other is a screw hole, and the screw inserted into the insertion hole is screwed into the screw hole, The first frame and the second frame are temporarily fixed.
In one aspect, one of the first hole and the second hole is located in the overlapping portion at the time of fixing, and a hole located at the overlapping portion at the time of fixing (typically, outside of the overlapping portion) The first frame body and the second frame body are fixed by screwing a drill screw through a hole formed in the finding surface located in the first frame body.
In addition, in a posture in which the second frame body is lowered by its own weight with respect to the first frame body, if an overlapping portion between the found surface of the first frame body and the found surface of the second frame body is obtained. The first frame and the second frame can be fixed by screwing a drill screw even in a place where there is no hole.

In one aspect, the first frame has a top surface, a first finding surface, a second finding surface, a first prospecting surface, and a second prospecting surface, and a box body opening downward. And
The second frame is a box body including a lower surface, a first finding surface, a second finding surface, a first prospecting surface, and a second prospecting surface, and having an upper opening.
The first frame and the second frame are assembled in a nested manner to form a lower structure.
As a modification, the inner box does not have to have the opening.

Other technical means adopted by the present invention include:
A four-circle-shaped fitting frame having a lower structure including an upper first frame and a lower second frame,
The first frame and the second frame are long members extending in a width direction of the fitting frame,
The first frame body is fixed to a lower frame of the fitting frame,
The second frame is temporarily fixed to the first frame in a state where its own weight drop is regulated,
Fitting frame.
In one aspect, the joinery frame is a door frame, and in the illustrated embodiment, an entrance door frame.

In one aspect, the first frame has an upper surface and at least one finding surface, and is fixed to the lower frame on the upper surface.
The second frame has a lower surface and at least one finding surface,
The first frame body and the second frame body are combined so that the found surfaces form an overlapping portion to form the lower structure,
The second frame is temporarily fixed to the first frame using a temporary fixing member at the overlapping portion.

In one aspect, the first frame has a top surface, a first finding surface, a second finding surface, a first prospecting surface, and a second prospecting surface, and a box body opening downward. And
The second frame is a box body including a lower surface, a first finding surface, a second finding surface, a first prospecting surface, and a second prospecting surface, and having an upper opening.
The first frame and the second frame are assembled in a nested manner to form a lower structure.

Another technical means adopted by the present invention is an installation structure of a lower structure of a fitting frame,
The lower structure includes an upper first frame and a lower second frame, and the first frame and the second frame are long members extending in a width direction of the fitting frame.
The lower frame of the fitting frame is located at substantially the same height as the finished floor material, and the finished floor material and the lower surface of the skeleton are separated,
The first frame has an upper surface and at least one finding surface, and is fixed to the lower frame on the upper surface,
The second frame has a lower surface and at least one finding surface, and the lower surface is in contact with the lower surface of the skeleton,
The first frame and the second frame are combined so that the found surfaces form an overlapping portion to form the lower structure, and the first frame and the second frame are The lower surface of the second frame is in contact with the lower surface of the skeleton without being fixed.
In one aspect, the first frame has a top surface, a first finding surface, a second finding surface, a first prospecting surface, and a second prospecting surface, and a box body that is open at the bottom. And
The second frame is a box having a lower surface, a first finding surface, a second finding surface, a first prospecting surface, and a second prospecting surface, and having an upper opening.
The first frame and the second frame are combined in a nested manner to form a lower structure,
Both ends in the width direction of the lower structure are closed by first and second prospective surfaces of the first frame and the second frame.
In one aspect, the second finding surfaces of the first frame and the second frame also form an overlapping portion.
In one aspect, the first prospective surfaces and the second prospective surfaces of the first frame and the second frame also form an overlapping portion.
In one aspect, the screw is a drill screw.

  According to the present invention, the lower structure of the fitting frame can be installed by a simple procedure, and while the lower structure has a simple configuration, the height dimension can be easily adjusted, and the space below the lower frame of the fitting frame can be reduced. Can be installed satisfactorily in any height dimension.

(A) is a front view of the door device as viewed from the outdoor side, and (B) is a front view of the door device as viewed from the indoor side, in which the lower part of the floor is cut away to provide the door according to the present embodiment. The lower structure (installation state) of the frame is shown. (A) is a front view of the door frame according to the present embodiment viewed from the outdoor side, (B) is a front view of the door frame according to the present embodiment viewed from the indoor side, and the door frame has a lower structure (temporary). Fixed state). (A) is a partial vertical sectional view of a lower part of the door frame according to the present embodiment, and the door frame has a lower structure (temporarily fixed state). (B) is a side view of the lower structure (temporarily fixed state), (C) is a plan view of the lower structure (temporarily fixed state), and (D) is a front view of the lower structure (temporarily fixed state) viewed from the indoor side. is there. (A) is a side view of the first frame, (B) is a plan view thereof, and (C) is a front view thereof. (A) is a side view of the second frame, (B) is a plan view thereof, and (C) is a front view thereof. It is a longitudinal cross-sectional view which shows the lower structure in a temporarily fixed state. It is a longitudinal cross-sectional view which shows the lower structure in a self-weight falling state. (A) is a longitudinal sectional view showing a lower structure in a fixed state (installed state), (B) is a front view (a lower surface of the skeleton is a plane) viewed from a first space, and (C) is a first view. It is the same front view (the lower surface of the skeleton was inclined) seen from space. (A) is a side view showing a lower structure in a temporarily fixed state, (B) is a longitudinal sectional view showing a lower structure in a first descending state, (C) is a longitudinal sectional view showing a lower structure in a second descending state, ( D) is a longitudinal sectional view showing the lower structure in the third lowered state. (A)-(D) is a longitudinal section showing other modes of a lower structure. (A)-(D) is a figure explaining the conventional lower structure.

FIG. 1A is a front view of the door device as viewed from the outside, and FIG. 1B is a front view of the door device as viewed from the inside of the room. 2 shows a lower structure (installed state) of the door frame according to (1). As shown in FIG. 1, the door device is rotated by an upper frame 1, left and right vertical frames 2, 3, and a lower frame 4 to form a four-periphery door frame and a vertical frame 3 on the side of the door end of the door frame. And a door body 5 that is mounted as possible. The door device is supported by a surrounding skeleton (such as a wall). The lower frame 4 of the door frame is at substantially the same height level as the floor surface FL. In the door body 5, the found surface facing the indoor side in the opening closed position is referred to as a first surface portion 50, and the found surface facing the outdoor side is referred to as a second surface portion 51.

In the present embodiment, a gap or a lower space is formed between the finished flooring 10 on which the lower frame 4 is installed and the skeleton lower surface 11 (for example, mortar provided on a concrete slab). In the space, for example, a pipe or the like is arranged. The height or depth of this space is represented by D (see FIGS. 6 to 8).

The door frame is provided below the lower frame 4 and has a lower structure. The lower structure is installed so as to close a space between the lower frame 4 and the lower surface 11 of the skeleton. More specifically, the lower structure closes the space between the lower frame 4 and the skeleton lower surface 11 to form a fire prevention compartment, and supports the lower frame 4 to prevent the lower frame 4 from bending. It has become. In the present embodiment, the lower structure includes the upper first frame 6 and the lower second frame 7. A detailed description of the lower structure will be described later.

The lower frame 4 is a so-called shoe slide, and is a long member located at the lower end of the opening and extending in the opening width direction. More specifically, as shown in FIG. 6, the lower frame 4 includes an indoor-side upper surface 40, an outdoor-side upper surface 41 located below a lower surface 52 of the door body 5 in a closed posture, and an indoor-side finding surface 42. An outdoor-side finding surface 43, an indoor-side lower side 44 extending horizontally from the lower end of the indoor-side finding surface 42 toward the indoor side, and extending horizontally from the lower end of the outdoor-side finding surface 43 toward the indoor side. An outdoor lower side 45. Between the indoor upper surface 40 and the outdoor upper surface 41, there is formed a concave groove 46 which opens toward the outdoor side and extends in the opening width direction, and a long buffer material 47 is formed in the concave groove 46. Is installed. When the door 5 is in the closed position, the lower end portion of the first surface 50 of the door 5 is in pressure contact with the cushioning material 47.

The finishing floor material 10 is provided so as to cover the indoor-side finding surface 42 and the outdoor-side finding surface 43 of the lower frame 4, and the floor surface FL and the outdoor-side upper surface 41 have substantially the same height level. In the present specification, in the lower space between the finished flooring 10 and the skeleton lower surface 11, a space located below the indoor space is referred to as a first space A, and a space located below the outdoor space is referred to as a second space. B. The lower structure is located below the lower frame 4 in the installed state, and partitions the first space A and the second space B across the width of the lower frame 4 (see FIG. 8A).

FIG. 2A is a front view of the door frame according to the embodiment as viewed from the outside, and FIG. 2B is a front view of the door frame according to the embodiment as viewed from the inside of the door. A lower structure (temporarily fixed state) including the first frame 6 and the second frame 7 is provided. Please refer to FIG. 3 for details of the lower structure (temporarily fixed state) in FIG. The door frame is assembled in a four-circle frame at the factory, and the lower structure is attached to the lower frame 4 in a temporarily fixed state. The door frame is carried to the site with a lower structure (temporarily fixed state).

The first frame 6 according to the present embodiment is a long member extending in the width direction of the opening, and is a box having an open lower surface. More specifically, as shown in FIG. 4, the first frame 6 includes an upper surface 60 having a predetermined longitudinal dimension L1 and a shorter dimension S1, and a first frame 6 hanging from one end of the upper surface 60 in the shorter direction. A finding surface 61, a second finding surface 62 hanging from the other end in the short direction of the upper surface 60, a first expecting surface 63 hanging from one end in the longitudinal direction of the upper surface 60, A second prospect surface 64 hanging down from the end, and the lower portion is open. In the present embodiment, the first finding surface 61 is an indoor finding surface, and the second finding surface 62 is an outdoor finding surface.

The second frame 7 according to the present embodiment is a long member extending in the width direction of the opening, and is a box having an open upper surface. More specifically, as shown in FIG. 5, the second frame 7 has a lower surface 70 having a predetermined longitudinal dimension L2 and a shorter dimension S2, and a second frame 7 that rises vertically from one end of the lower surface 70 in the shorter direction. A first finding surface 71, a second finding surface 72 that rises vertically from the other end in the short direction of the lower surface 70, a first finding surface 73 that rises vertically from one longitudinal end of the lower surface 70, and a length of the lower surface 70. A second prospect surface 74 that rises vertically from the other end in the direction, and is open at the top. In this embodiment, the first finding surface 71 is an indoor finding surface, and the second finding surface 72 is an outdoor finding surface.

In the present embodiment, the longitudinal dimension L1 and the lateral dimension S1 of the first frame 6 are slightly larger than the longitudinal dimension L2 and the lateral dimension S2 of the second frame 7, and the first frame 6 The second frame 7 can be received in the internal space 6. That is, the box-shaped first frame 6 and the box-shaped second frame 7 are nested to form a lower structure. The height of the lower structure is variable depending on the insertion depth of the second frame into the internal space of the first frame 6. In the present embodiment, the height of the first frame 6 and the height of the second frame 7 are substantially the same.

As shown in FIG. 4, a plurality of insertion holes 610 are formed below the first finding surface 61 of the first frame body 6 at intervals in the length direction. As shown in FIG. 5, a plurality of screw holes 710 are formed in the lower part of the first finding surface 71 of the second frame body 7 at intervals in the length direction. In a state where the second frame 7 is inserted deeply into the internal space of the first frame 6 (the height of the lower structure is minimum), the screw between the insertion hole 610 of the first finding surface 61 and the first finding surface 71 is formed. The holes 710 are aligned.

As shown in FIG. 4, a plurality of screw holes 600 are formed in a portion of the upper surface 60 of the first frame body 6 near the first found surface 61 at intervals in the length direction. The short dimension S1 of the first frame 6 is substantially the same as the short dimension of the lower frame 4, and the portion of the upper surface 60 of the first frame 6 on the first finding surface 61 side is the chamber of the lower frame 4. It is in contact with the lower surface of the inner lower side 44, is fixed by a plurality of screws 48, and a portion of the upper surface 60 close to the second finding surface 62 is in contact with the lower surface of the outdoor lower side 45 of the lower frame 4. (See FIG. 6). The shape of the lower frame 4 and the configuration for fixing the first frame 6 to the lower frame 4 are not limited to the illustrated embodiment.

The first frame 6 and the second frame 7 are inserted into the internal space of the first frame 6, and the first found surface 61 of the first frame 6 and the second frame 7 In a state where the first finding surfaces 71 are overlapped with each other, they are temporarily fixed by a plurality of first screws 8 as temporary fixing members screwed into the screw holes 710 from the insertion holes 610. The first screw 8 is a small screw that requires a prepared hole (screw hole 710). In the present embodiment, the first frame 6 and the second frame 7 are temporarily fixed by screwing the first screw 8 into the insertion hole 610 and the screw hole 710 from the first space A side.

When the first frame 6 and the second frame 7 are in the temporarily fixed state, the second frame 7 is inserted deepest into the internal space of the first frame 6, and the second frame 7 is there was a high position, height H ₀ of the undercarriage is minimal (see FIG. 9 (a)).

As shown in FIG. 6, in the temporarily fixed state, the outer surface of the first finding surface 71 of the second frame 7 abuts on the inner surface of the first finding surface 61 of the first frame 6, and the first screw 8 It is temporarily fixed, and the outer surface of the second found surface 72 of the second frame 7 is closely opposed to the inner surface of the second found surface 62 of the first frame 6, and the first surface of the first frame 6 The outer surface of the first prospective surface 73 of the second frame 7 is closely opposed to the inner surface of the prospective surface 63, and the second prospective surface of the second frame 7 is facing the inner surface of the second prospective surface 64 of the first frame 6. The outer surfaces of the first frame 74 are opposed to each other, and the upper ends of the second frame 7 (the first surface 71, the second surface 72, the first surface 73, and the second surface 74) are the first frame. 6 is close to the inner surface of the upper surface 60. The lower surface 70 of the second frame 7 is separated from the lower surface 11 of the frame.

In the temporarily fixed state of the first frame 6 and the second frame 7, the second frame 7 is suspended from the first frame 6 fixed to the lower frame 4 of the door frame with its own weight lowered, and is suspended. State. When the first screw 8 is removed in the temporarily fixed state, the weight-restricted state of the second frame 7 is released, and the weight of the second frame 7 falls with respect to the first frame 6 (see FIG. 7). When the lower surface 70 of the second frame 7 that falls by its own weight abuts on the skeleton lower surface 11, the lowering of the second frame 7 stops, and the lowering position of the second frame 7 with respect to the first frame 6 is determined. The height dimension of the substructure is determined.

In a state where the second frame 7 is lowered by its own weight with respect to the first frame 6, the first finding surface 61 of the first frame 6 and the first finding surface 71 of the second frame 7 have an overlapping portion. ing. The insertion hole 610 formed in the first finding surface 61 is located in the overlapping portion, and no hole is formed in the first finding surface 71 in the overlapping portion. In the present embodiment, the second screw 9 as a fixing member is a drill screw that does not require a pilot hole, and the second screw 9 screwed through the insertion hole 610 causes the first surface of the first frame 6 to be located. 61 and the first finding surface 71 of the second frame 7 are fixed (see FIG. 8A).

When the lower structure of the door frame is installed, the lower surface 70 of the second frame 7 of the lower structure abuts on the lower surface 11 of the skeleton, and the first finding surface 61 of the first frame 6 of the lower structure and the second frame The first finding surface 71 of the body 7 is fixed by the second screw 9. The second frame 7 and the frame lower surface 11 are not connected by a fixing member such as a screw. The second finding surface 62 of the first frame 6 of the lower structure and the second finding surface 72 of the second frame 7 are opposed but not fixed. That is, in the lower structure, one of the found surfaces (the first found surface 61 and the first found surface 71 in the present embodiment) of the first frame 6 and the second frame 7 are connected by the second screw 9. It is installed only by doing.

In the present embodiment, the first screw 8, which is a temporary fixing member, is not used as a fixing member. After the first screw 8 is removed, the screw hole 710 of the first finding surface 71 of the second frame 7 is not particularly closed, but the second hole 710 faces the insertion hole 710 of the first finding surface 71. Since the finding surface 72 is located, a hole that directly penetrates the first space A and the second space B is not formed. Note that the screw hole 710 may be closed using the removed first screw 8.

The lower structure according to this embodiment can satisfactorily cope with the case where the skeleton lower surface 11 is not a horizontal surface. FIG. 8B shows a case where the skeleton lower surface 11 is a horizontal plane, and FIG. 8C shows a case where the skeleton lower surface 11 is uneven. In the present embodiment, a fixing mounting hole is not provided on the first finding surface 71 of the second frame 7 (in contrast to the fixing using the screw c and the vertically long hole e shown in the conventional example). ), The second screw 9 inserted from the insertion hole 610 of the first finding surface 61 of the first frame 6 using the second screw 9 made of a drill screw is attached to the first finding surface 71 of the second frame 7. Since the second frame 7 is screwed and fixed, the second frame 7 can be fixed to the first frame 6 at an arbitrary height position. Even if the skeleton lower surface 11 is uneven, it is possible to cope well. In the present embodiment, the first frame 6 and the second frame 7 are fixed without being affected by the position and the size of the mounting hole by not providing the mounting hole for fixing in the first finding surface 71. Can be.
The present invention does not exclude a mode in which a vertically long screw hole for fixing is adopted.

In an apartment house such as a condominium, the height dimension or the depth dimension D of the lower space between the finished flooring 10 and the skeleton lower surface 11 may be different for each floor. As shown in FIG. 9, in the lower structure of the present embodiment, by preparing one lower structure, lower structures having different heights can be obtained, and the lower structure having different heights or depths D can be obtained. Can respond to space.

FIG. 9A shows the lower structure in a temporarily fixed state, in which the second frame 7 is at the temporarily fixed position where it is inserted deepest into the internal space of the first frame 6, and the lower structure has a minimum height. and it has a dimension _{H 0.} In the temporarily fixed state, the first finding surface 61 of the first frame 6 and the first finding surface 71 of the second frame 7 have an overlapping portion, and the first frame 6 and the second frame 7 The second frame 7 is temporarily fixed by the first screw 8 in the overlapping portion, and the second frame 7 is in a state where its own weight is restricted. When the first screw 8 is removed from this state, the weight drop regulation of the second frame 7 is released, and the second frame 7 drops by its own weight until the lower surface 70 contacts the frame lower surface 11.

FIG. 9 (B) shows a first embodiment of the substructure in a fixed state, the lower structure has a height H _1. In the first mode, the second frame 7 is at the first lowered position lowered from the temporary fixing position shown in FIG. 9A, and the first finding surface 61 of the first frame 6 and the second frame are 7 has an overlap portion, and the first frame 6 and the second frame 7 are fixed by the second screw 9 at the overlap portion.

FIG. 9 (C) shows a second embodiment of the substructure in a fixed state, the lower structure has a height dimension H _2. In the second mode, the second frame 7 is at the second lowered position further lowered from the first lowered position shown in FIG. 9B, and the first found surface 61 of the first frame 6 and the second The first finding surface 71 of the frame 7 has an overlapping portion, and the first frame 6 and the second frame 7 are fixed by the second screw 9 at the overlapping portion.

Figure 9 (D) show a third embodiment of the substructure in a fixed state, the lower structure has a height H _3. In the third aspect, the second frame 7 is at the third lowered position further lowered from the second lowered position shown in FIG. 9C, and the first finding surface 61 of the first frame 6 and the second The first finding surface 71 of the frame 7 has an overlapping portion, and the first frame 6 and the second frame 7 are fixed by the second screw 9 at the overlapping portion.

In any of the first descending position, the second descending position, and the third descending position, the first finding surface 61 of the first frame 6 and the first finding surface 71 of the second frame 7 overlap each other. In the overlapping portion, the insertion hole 610 of the first finding surface 61 of the first frame 6 is located, and in the overlapping portion, the first look is performed using the second screw 9 which is a drill screw. The attaching surface 61 and the first finding surface 71 are fixed. As described above, the installation height of the lower structure is variable, and different heights (in the illustrated example, the heights H ₁ , H ₂ , and H ₃ ) can be obtained using one type of lower structure. The lower space having a different depth dimension D can be closed depending on the site.

An installation process of the lower structure of the door frame according to the present embodiment will be described. First, a door frame having a lower structure is assembled in a factory (see FIG. 2). Specifically, a door frame is assembled into a four-peripheral frame shape from the upper frame 1, the left and right vertical frames 2, 3, and the lower frame 4, and the first frame 6 is fixed to the lower frame 4 using screws 48. The second frame 7 is inserted into the internal space of the first frame 6, and the insertion hole 610 formed in the first finding surface 61 of the first frame 6 and the first finding of the second frame 7 are performed. The first frame 6 and the second frame 7 are temporarily fixed by the temporary fixing first screw 8 with the screw holes 710 formed in the surface 71 aligned.

Then, the door frame having the lower structure in the temporarily fixed state is carried into the site. A door frame having a lower structure is attached to a predetermined position forming an opening. At this time, the door frame is supported and attached to a surrounding frame (not shown), and the lower frame 4 of the door frame and the lower structure in a temporarily fixed state are separated upward from the lower frame lower surface 11. The second frame 7 of the lower structure in the temporarily fixed state is suspended with respect to the first frame 6 fixed to the lower frame 4 in a state where its own weight drop is restricted.

After the door frame having the lower structure in the temporarily fixed state is attached to the site, the first screw 8 that temporarily fixes the first frame 6 and the second frame 7 is removed, and the second frame 7 becomes The self-weight drop regulation is released, and the self-weight drop is performed until the lower surface 70 comes into contact with the skeleton lower surface 11. In a state where the second frame 7 that has dropped by its own weight abuts on the lower surface 11 of the skeleton, the second frame 7 has the first finding surface 61 of the first frame 6 and the first finding surface 71 of the second frame 7 at the overlapping portion. The second screw 9 is screwed into the first finding surface 71 from the insertion hole 610 of the first finding surface 61 to fix the first frame 6 and the second frame 7. In the present embodiment, when the second screw 9 is screwed in, the second finding surface 72 of the second frame 7 comes into contact with the second finding surface 62 of the first frame 6 so that the second screw 9 is formed. 9 can be performed well.

In the present embodiment, the fitting frame provided with the lower structure is attached to a predetermined position of the building, the first screw 8 is removed, and the second frame 7 is lowered by its own weight. The lower structure of the door frame can be installed by a simple procedure of fixing the second frame 7 and the first frame 6 with the second screw 9 in a state where the door frame is in contact with the door frame. Since the lower structure is composed of the two members of the first frame 6 and the second frame 7, the number of parts is smaller than that of the conventional lower structure shown in FIG. 11, the structure is simple, and the workability is good. .

In the present embodiment, the first frame 6 and the second frame 7 are temporarily fixed and fixed by screwing the first screw 8 and the second screw 9 from the first space A into the first frame 6. This is performed by temporarily fixing the first finding surface 61 and the first finding surface 71 of the second frame 7. That is, since the temporary fixing release operation and the fixing operation can be performed from only one direction, the workability is good (in the conventional example shown in FIG. 11, it is necessary to perform the operation from both sides).

By preparing one lower structure, the lower structure of the present embodiment can obtain lower structures having different heights, and can correspond to a lower space having different height dimensions or depth dimensions. By using a drill screw as the second screw 9 as a fixing member, the second frame 7 can be fixed at an arbitrary height position (and an inclined posture) with respect to the first frame 6, and the frame lower surface 11 The substructure can be installed satisfactorily even if is uneven.

In the installation structure of the lower structure of the door frame obtained in this way, the lower structure is composed of the upper first frame 6 and the lower second frame 7, and the first frame 6 and the second frame Reference numeral 7 denotes a long member extending in the width direction of the door frame, the lower frame 4 of the door frame is located at substantially the same height as the finished floor material 10, and the finished floor material 10 is separated from the lower surface 11 of the skeleton. The first frame 6 includes an upper surface 60, a first finding surface 61, a second finding surface 62, a first looking surface 63, and a second looking surface 64, and a box whose lower part is open. The upper surface 60 is fixed to the lower frame 4 of the door frame, and the second frame 7 has a lower surface 70, a first finding surface 71, a second finding surface 72, and a first prospecting surface. 73, a second prospect surface 74, and a box body with an open upper side, a lower surface 70 abutting on the frame lower surface 11, and the first frame 6 and the second frame 7 Implementation form Then, the second frame 7 is inserted into the internal space of the first frame 6) to form a lower structure. Both ends of the lower structure in the width direction are connected to the first frame 6 and the The first prospective surfaces 63 and 73 and the second prospective surfaces 64 and 74 of the second frame 7 are closed, and the first prospective surfaces 61 and 71 of the first frame 6 and the second frame 7 overlap with each other. The first frame 6 and the second frame 7 are fixed by the second screw 9 in the overlapping portion, and the lower surface 70 of the second frame 7 and the lower surface 11 of the frame are fixed. Abut without contact.

As described above, the installation structure of the lower structure can be installed by a simple procedure. The lower structure is installed so as to close the space between the lower frame 4 and the lower surface 11 of the frame, and the lower structure closes the space between the lower frame 4 and the lower surface 11 of the frame over the width direction of the door frame. Thus, the lower frame 4 is supported from below over the entire width direction to prevent the lower frame 4 from bending.

In the present embodiment, the screw hole 710 of the first finding surface 71 of the second frame 7 is not particularly closed after the first screw 8 is removed, but the insertion hole 710 of the first finding surface 71 Since the second finding surface 72 is opposed to the first space A, the hole directly passing through the first space A and the second space B is not formed. Furthermore, both ends in the width direction of the lower structure are closed by the first prospective surfaces 63 and 73 and the second prospective surfaces 64 and 74 of the first frame 6 and the second frame 7, so that the fire prevention performance is improved. ing.

The lower structure shown in FIGS. 1 to 9 is an example, and does not limit the lower structure according to the present invention, and other embodiments can be adopted. Another example of the lower structure will be described with reference to FIGS. FIG. 10 shows a temporarily fixed state of each lower structure. Elements that are the same as the elements in the above-described embodiments are denoted by the same reference numerals, and the description given by the same reference numbers can be referred to for the description of the elements denoted by the same reference numbers.

In the mode according to FIG. 10A, the upper first frame 6 is inserted into the internal space of the lower second frame 7. That is, in the above-described embodiment, the first frame 6 has a size larger than the second frame 7, but the size of the second frame 7 may be larger than the first frame 6.
The first finding surface 71 of the second frame 7 overlaps with the outside of the first finding surface 61 of the first frame 6.

A plurality of screw holes (closed by the first screw 8 in FIG. 10A) are formed in the lower portion of the first finding surface 61 of the first frame 6 at intervals in the length direction. The lower part of the first finding surface 71 of the second frame 7 is provided with a plurality of insertion holes (in FIG. 10A, closed by the first screw 8 in the length direction). Is formed). At the temporary fixing position, the screw holes of the first finding surface 61 and the insertion holes of the first finding surface 71 match, and the first screw 8 inserted into the insertion hole is screwed into the screw hole, so that the The first frame 6 and the second frame 7 are temporarily fixed.

By removing the first screw 8 from the state shown in FIG. 10A, the restriction on the weight of the second frame 7 is released, and the weight of the second frame 7 is lowered. Although not shown in FIG. 10A, the first frame 61 and the first frame 61 of the second frame 7 are brought into contact with the second frame 7 having its own weight dropped on the lower surface of the frame. The first finding surface 71 has an overlapping portion, and an insertion hole is located in the overlapping portion. By inserting a second screw 9 which is a drill screw from the insertion hole, the first frame 6 and the second frame 6 are overlapped. The frame 7 is fixed.

In the embodiment according to FIG. 10B, the first finding surface 61 of the first frame 6 has a recess 611. In the above-described embodiment, the first finding surface 61 of the first frame 6 is a vertical surface that hangs down from the upper surface 60. However, in the embodiment according to FIG. A central portion in the direction is a concave portion, and a vertical bottom surface 612 of the concave portion 611 forms an overlapping portion with the first finding surface 71 of the second frame 7. An insertion hole (closed by the first screw 8 in FIG. 10B) is formed in the bottom surface 612 of the concave portion 611, and in the temporarily fixed state, the insertion hole is formed in the first finding surface 71 of the second frame 7. Is formed with a screw hole (in FIG. 10B, closed by the first screw 8) so as to coincide with the insertion hole.

By removing the first screw 8 from the state shown in FIG. 10B, the restriction on the weight of the second frame 7 is released, and the weight of the second frame 7 is lowered. Although not shown in FIG. 10B, the second frame 7 having its own weight lowered contacts the bottom surface of the recess 611 of the first finding surface 61 of the first frame 6 in a state in which the second frame 7 abuts on the lower surface of the frame. The first finding surface 71 of the two-frame body 7 has an overlapping portion, and an insertion hole is located in the overlapping portion, and the second screw 9 which is a drill screw is screwed from the insertion hole into the first finding surface 71. The frame 6 and the second frame 7 are fixed.

In the embodiment according to FIG. 10C, a hook 620 is formed at the lower end of the second finding surface 62 of the first frame 6, and the upper end of the second finding surface 72 of the second frame 7. Is formed with a hook piece 720. In the temporarily fixed state, the hook 620 and the hook 720 are separated from each other in the height direction. By removing the first screw 8 from the state shown in FIG. 10C, the restriction on the weight of the second frame 7 is released, and the weight of the second frame 7 is lowered. Although not shown in FIG. 10 (C), the first frame 61 and the first frame 61 of the second frame 7 are placed in a state where the second frame 7 that has dropped by its own weight is in contact with the lower surface of the frame. The first finding surface 71 has an overlapping portion, and an insertion hole is located in the overlapping portion. By inserting a second screw 9 which is a drill screw from the insertion hole, the first frame 6 and the second frame 6 are overlapped. The frame 7 is fixed. In the fixed state, the latching piece 620 and the latching piece 720 approach or latch according to the depth dimension D of the lower space.

In the embodiment according to FIG. 10D, the lower surface 70 of the second frame 7 has an upward recess 700. By removing the first screw 8 from the state of FIG. 10 (D), the restriction on the weight of the second frame 7 is released, and the weight of the second frame 7 is lowered. Although not shown in FIG. 10D, the first frame 61 and the first frame 61 of the second frame 7 are placed in a state in which the second frame 7 having its own weight has fallen against the lower surface of the frame. The first finding surface 71 has an overlapping portion, and an insertion hole is located in the overlapping portion. By inserting a second screw 9 which is a drill screw from the insertion hole, the first frame 6 and the second frame 6 are overlapped. The frame 7 is fixed. In this embodiment, by forming the concave portion 700 on the lower surface 70 of the second frame 7, irregularities (if present) can be absorbed on the lower surface of the skeleton.

In all of the above-described embodiments, both the first frame 6 and the second frame 7 have a generally U-shape in cross-section, but the first frame 6 is viewed in cross-section from the top surface and one found surface. It may be formed in an L shape. The second frame 7 may be formed in an L shape in a sectional view from the lower surface and one found surface. One of the first frame 6 and the second frame 7 may be formed in a U-shape in cross section, and the other may be formed in an L shape in cross section. Also, the first frame 6 and the second frame 7 are formed in an L shape in cross section, and the first frame 6 and the second frame 7 are combined so that the found surfaces form an overlapping portion. A substructure may be formed. In addition, it is understood by those skilled in the art that it is necessary to close the hole remaining after removing the first screw 8 which is the temporary fixing member as necessary in order to ensure the fire protection performance. It may be closed with.

In the illustrated embodiment, the width of the lower structure is substantially the same as the width of the lower frame 4, but may be larger than the width of the lower frame 4 depending on the site, or the width of the lower frame 4. It may be shorter. In the present embodiment, the internal space of the lower structure is hollow, but the internal space may be filled with a refractory material such as a lock rule. In the present embodiment, the first frame 6 and the second frame 7 are galvanized steel sheets having a thickness of 1.6 mm or more, but the material and thickness of the lower structure are limited as long as they have a predetermined strength and fire resistance. Not done.

1 Upper frame 2 Vertical frame (door side)
3 vertical frame (door side)
4 Lower frame 5 Door 6 First frame 60 Upper surface 61 First surface 610 Insertion hole 62 Second surface 63 First surface 64 Second surface 7 Second frame 70 Lower surface 71 First surface Surface 710 Screw hole 72 Second surface 73 First surface 74 Second surface 8 First screw (small screw)
9 Second screw (drill screw)
10 Finished flooring 11 Lower surface of skeleton

Claims (9)

Prepare a four-circle shaped fitting frame with a lower structure consisting of an upper first frame and a lower second frame,
The first frame and the second frame are long members extending in a width direction of the fitting frame,
The first frame body is fixed to a lower frame of the fitting frame,
The second frame is temporarily fixed to the first frame in a state where its own weight drop is restricted,
A fitting frame having a lower structure is attached to a predetermined position of the building, and at this time, the second frame and the lower surface of the skeleton are separated,
By canceling the weight drop regulation, the second frame is lowered by its own weight,
Fixing the second frame and the first frame in a state in which the second frame dropped by its own weight contacts the lower surface of the skeleton;
How to install the substructure of the fitting frame. The first frame has an upper surface and at least one finding surface, and is fixed to the lower frame on the upper surface,
The second frame has a lower surface and at least one finding surface, and the lower surface contacts the lower surface of the skeleton,
The first frame body and the second frame body are combined so that the found surfaces form an overlapping portion to form the lower structure,
At the time of temporary fixing, the second frame is temporarily fixed to the first frame using a temporary fixing member at the overlapping portion,
Removing the temporary fixing member, lowering the second frame by its own weight,
In a state where the lower surface of the second frame is in contact with the lower surface of the skeleton, the second frame and the first frame are fixed at the overlapping portion using a fixing member,
A method for installing a lower structure of a fitting frame according to claim 1. The temporary fixing member is a screw,
The fixing member is a drill screw;
A method for installing a lower structure of a fitting frame according to claim 2. The first frame is a box having an upper surface, a first finding surface, a second finding surface, a first prospecting surface, and a second prospecting surface, and having a lower opening,
The second frame is a box body including a lower surface, a first finding surface, a second finding surface, a first prospecting surface, and a second prospecting surface, and having an upper opening.
The first frame and the second frame are combined in a nested manner to form a lower structure.
A method for installing a lower structure of a fitting frame according to any one of claims 1 to 3. A four-circle-shaped fitting frame having a lower structure including an upper first frame and a lower second frame,
The first frame and the second frame are long members extending in a width direction of the fitting frame,
The first frame body is fixed to a lower frame of the fitting frame,
The second frame is temporarily fixed to the first frame in a state where its own weight drop is regulated,
Joinery frame. The first frame has an upper surface and at least one finding surface, and is fixed to the lower frame on the upper surface,
The second frame has a lower surface and at least one finding surface,
The first frame body and the second frame body are combined so that the found surfaces form an overlapping portion to form the lower structure,
The second frame is temporarily fixed to the first frame using a temporary fixing member at the overlapping portion,
The fitting frame according to claim 5. The first frame is a box having an upper surface, a first finding surface, a second finding surface, a first prospecting surface, and a second prospecting surface, and having a lower opening,
The second frame is a box body including a lower surface, a first finding surface, a second finding surface, a first prospecting surface, and a second prospecting surface, and having an upper opening.
The first frame and the second frame are combined in a nested manner to form a lower structure.
The fitting frame according to claim 5. The installation structure of the lower structure of the fitting frame,
The lower structure includes an upper first frame and a lower second frame, and the first frame and the second frame are long members extending in a width direction of the fitting frame.
The lower frame of the fitting frame is located at substantially the same height as the finished floor material, and the finished floor material and the lower surface of the skeleton are separated,
The first frame has an upper surface and at least one finding surface, and is fixed to the lower frame on the upper surface,
The second frame has a lower surface and at least one finding surface, and the lower surface is in contact with the lower surface of the skeleton,
The first frame and the second frame are combined so that the found surfaces form an overlapping portion to form the lower structure, and the first frame and the second frame are The lower surface of the second frame body and the lower surface of the frame are in contact with each other without being fixed.
Installation structure of the substructure of the fitting frame. The first frame is a box having an upper surface, a first finding surface, a second finding surface, a first prospecting surface, and a second prospecting surface, and having a lower opening,
The second frame is a box body including a lower surface, a first finding surface, a second finding surface, a first prospecting surface, and a second prospecting surface, and having an upper opening.
The first frame and the second frame are combined in a nested manner to form a lower structure,
Both ends in the width direction of the lower structure are closed by first and second prospective surfaces of the first frame and the second frame,
An installation structure for a lower structure of the fitting frame according to claim 8.

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