JP2023111513A - Reinforcing structure at connecting part of vertical and horizontal frames - Google Patents

Abstract

To reinforce a connecting part at which a vertical frame 2 and a transom 5 are connected by fastening a screw 15e inserted from a connection fitting 15 provided on the vertical frame to a connection receiving fitting 14 provided on the transom 5.SOLUTION: When reinforcing a connecting part using a reinforcing fitting 16, a base piece part 16a of the reinforcing fitting 16 is screwed to the connection fitting 15, and an extending piece part 16c is screwed to a vertical frame side straddling piece part 2a.SELECTED DRAWING: Figure 11

Description

The present invention relates to a connecting portion of vertical and horizontal frames constituting a frame member such as a door frame or a partition frame provided in a doorway or partition of a building such as a building or a house, or a unit frame in which a door frame and a transom frame are integrally formed. It relates to the technical field of reinforcing structures in

Generally, frame materials such as a door frame for opening and closing a door body or a unit frame in which the door frame and the transom frame are integrally formed are installed in an opening such as a doorway provided in a building. As such a frame material, a vertical frame and a horizontal frame provided with a straddle portion and both leg pieces are used, and the lateral outer edge of the horizontal frame (tip edge) is attached to the lateral inner edge of the vertical frame side straddle portion. It is known that an integral framework of vertical and horizontal frames is formed by connecting the vertical and horizontal frames in a state where they are butted against each other (see, for example, Patent Document 1).

JP 2014-173403 A

In such a connection structure, the conventional one disposes a connecting metal fitting on the laterally outer side of the vertical frame-side straddle portion, while providing a connection receiving tool on the horizontal frame-side straddling portion. The vertical and horizontal frames are connected by fastening the inserted connection screws to the connection receiving metal fittings in a state of penetrating the vertical frame side straddle portion. I am assuming.
In recent years, however, it is expected that a large earthquake will occur, and it is desired to further increase the strength of the connection structure of the vertical and horizontal frames, and this is the problem to be solved by the present invention.

The present invention was created for the purpose of solving these problems in view of the actual situation as described above. With the left-right outer edge of the horizontal frame abutting against the left-right inner edge of the frame-side straddle, insert the connecting screw inserted from the connecting fitting arranged on the left-right outer side of the vertical frame-side straddle. , the connecting portion of the vertical and horizontal frames configured to connect the vertical and horizontal frames by fastening the vertical frame side strut portion to the connection receiving metal fitting provided on the horizontal frame side straddling portion in a state of penetrating the vertical frame side straddling piece portion, When using a reinforcing metal fitting to reinforce the part, the reinforcing metal fitting is a base piece portion arranged on the left and right outer side of the connecting metal fitting, and from the base piece portion to the left and right outer side portion of the vertical frame side straddling piece portion. The base piece portion is fastened to the connecting fitting via a first reinforcing screw, and the extending piece portion extends across the vertical frame side via a second reinforcing screw. It is a reinforcing structure in the connecting part of the vertical and horizontal frames characterized by being fastened to the piece part.
In the invention according to claim 2, the connecting metal fitting has a U-shaped cross section including a strut portion facing the vertical frame side straddle portion and upper and lower leg portions, and the reinforcing metal fitting has a base piece portion which is a connecting metal fitting side straddle portion. 2. The reinforcing structure of the connecting portion of the vertical and horizontal frames according to claim 1, wherein the extension piece facing the piece portion is bent from the base piece portion so as to go over the connecting metal fitting side leg piece portion. is.
In the invention according to claim 3, the vertical frame side strut portion is positioned between the front and rear strut bottom portions and the strut bottom portions, and protrudes laterally outward from the straddle bottom portion. The vertical frame-side straddling piece has a through hole having a length from the strut projecting surface to a part of the bottom surface of both straddling pieces and through which the connecting screw penetrates. is formed, and in a state in which the connecting metal fitting side strut portion penetrates the strut projecting surface portion portion of the through hole, both front and rear end side portions abut on the surface portion on the front and rear outer side of the through hole of the strut bottom portion, and the horizontal frame 3. The vertical and horizontal frames according to claim 2, wherein the side straddle portions are provided with positioning projections for positioning the horizontal frame with respect to the vertical frame by coming into contact with the inner peripheral edges of the through holes. It is a reinforcing structure in the connection part of.
According to a fourth aspect of the present invention, there is provided a reinforcing structure for connecting portions of vertical and horizontal frames according to the third aspect, wherein the positioning protrusion faces the lower leg portion of the connecting fitting.
In the fifth aspect of the invention, the connecting metal fitting side leg piece has a leading edge protruding laterally outward from the strut projecting surface, and the leading end edge of the connecting metal fitting side leg piece has at least A notch portion is formed so that the portion corresponding to the reinforcing metal fitting extending piece portion is substantially at the same position as the straddle projecting surface portion, and the reinforcing metal fitting extending piece portion is bent at the cutout portion portion of the connecting metal fitting side leg piece portion. 6. The reinforcing structure of the connecting portion of the vertical and horizontal frames according to any one of claims 3 to 5, characterized in that it is in contact with the straddle protruding surface portion of the vertical frame side straddle portion.
The invention of claim 6 is characterized in that a reinforcing plate is provided on the protruding face of the straddle, and the extending piece is fastened to the protruding face of the straddle at a portion reinforced by the reinforcing plate. It is a reinforcing structure at the connection part of the vertical and horizontal frames.
The invention of claim 7 is characterized in that a pair of the extension piece portions are formed to extend from the base piece portion toward both sides in the vertical direction. It is a reinforcement structure in the part.

According to the invention of claim 1, the vertical frame and the horizontal frame are connected by connecting metal fittings disposed on the vertical frame side and connecting metal fittings provided on the horizontal frame side, and connecting screws inserted from the metal fittings are connected. In the case of connecting by fastening to metal fittings, when reinforcing the connection part using a reinforcing metal fitting provided with a base piece portion and an extending piece portion, the base piece portion is screwed to the connection metal fitting. Then, as a result of reinforcement using a reinforcing metal fitting that screw-fastens the extending piece to the straddle piece on the vertical frame side, the reinforcing metal fitting connects the vertical frame and the horizontal frame by connecting the connecting metal fitting and the connection receiving portion. By reinforcing the part through the straddle part on the vertical frame side, the earthquake resistance can be improved.
According to the second aspect of the present invention, the extending piece provided on the reinforcing metal fitting is bent so as to extend beyond the leg piece provided on the connecting metal fitting. Integration is promoted, which contributes to increased strength.
According to the third aspect of the invention, the vertical frame-side strut portions are positioned between the front and rear strut bottom portions and the strut bottom portions, and protrude outward in the left-right direction from the straddle bottom portions. and a connecting fitting-side straddling piece abuts on the bottom surface of the strut in a state of penetrating the strut projecting surface, wherein the horizontal frame-side straddling piece has a vertical frame of the horizontal frame As a result of the provision of the positioning protrusion for positioning relative to the vertical frame and the horizontal frame, positioning becomes easy when connecting the vertical frame and the horizontal frame, and the connection work can be facilitated.
According to the invention of claim 4, the positioning protrusion faces the lower leg portion of the connecting fitting, and the positioning protrusion and the lower leg portion of the connecting fitting are in surface contact. It can contribute to the improvement of the reinforcement function.
According to the invention of claim 5, the end edge of the connecting metal fitting side leg piece protrudes laterally outward from the strut protruding surface portion, so that the connecting metal fitting side leg piece portion is projected toward the vertical frame side. Incorporation is facilitated, and by providing a notch formed in the tip edge of the leg piece on the connecting metal fitting side, the extending piece of the reinforcing metal fitting can be bent while being in contact with the projecting surface of the straddle piece. As a result, it becomes easy to fasten the reinforcing metal fitting extending piece portion to the straddle projecting surface portion with a screw.
According to the invention of claim 6, a reinforcing plate is provided on the straddle protruding surface portion, and the extending piece portion is fastened to the straddle protruding surface portion of the portion reinforced by the reinforcing plate. The reinforcing function at the connecting portion of the frame is further improved.
According to the seventh aspect of the invention, reinforcement can be performed by the pair of upper and lower extension pieces, so that the reinforcement function can be improved.

It is a perspective view of a sliding door. It is a vertical cross-sectional view of a sliding door. It is a cross-sectional view of a sliding door. (A), (B), (C), and (D) are an inner side view, a front view, an outer side view, and a plan view of the vertical frame. (A), (B), (C), (D), and (E) are a front view, a plan view, a bottom view, a side view, and a longitudinal end view of an intermediate portion of the upper horizontal frame. (A), (B), (C), (D), and (E) are a front view, a plan view, a bottom view, a side view, and a longitudinal end view of an intermediate portion of the lower horizontal frame. (A), (B), (C), (D), and (E) are a front view, a plan view, a bottom view, a side view, and a longitudinal end view of an intermediate portion. (A) and (B) are cross-sectional front views and cross-sectional plan views of the connecting portion of the upper horizontal frame, and (C) and (D) are cross-sectional front views and cross-sectional plan views of the connecting portion between the vertical frame and the upper horizontal frame. (A) and (B) are a partially cutaway perspective view and an exploded perspective view of a connecting portion between the vertical frame and the upper horizontal frame. (A) and (B) are cross-sectional front views and cross-sectional plan views of a connecting portion of the mullion, and (C) and (D) are a cross-sectional front view and a cross-sectional plan view of the connecting portion of the vertical frame and the mulch. (A) and (B) are a partially cutaway perspective view and an exploded perspective view of a connecting portion between the vertical frame and the blind. (A) and (B) are cross-sectional front views and cross-sectional plan views of the connecting portion of the lower horizontal frame, and (C) and (D) are cross-sectional front views and cross-sectional plan views of the connecting portion between the vertical frame and the lower horizontal frame. (A) and (B) are a partially cutaway perspective view and an exploded perspective view of a connecting portion between the vertical frame and the lower horizontal frame. (A), (B), and (C) are a front view, a side view, and a plan view of the connecting fitting for the upper horizontal frame. (A), (B), and (C) are a front view, a side view, and a plan view of the reinforcing bracket for the upper horizontal frame. It is a longitudinal cross-sectional view of the connection part of the vertical frame and mulberry of the second embodiment.

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. In the drawings, reference numeral 1 denotes a unit frame in which a door frame to be installed in an opening for forming an entrance E of a building and a transom frame above the door frame are formed. A pair of vertical frames 2, an upper horizontal frame 3 provided at the upper and lower end edges of the vertical frame 2, and a lower horizontal frame (saddle rail) 4 are configured in a rectangular frame shape. , a blind (blanket frame, middle A sliding door type door body 6 is provided at the entrance E so as to be openable and closable, and a transom plate (partition plate) 7 having a thin plate thickness such as a glass plate is incorporated in the transom R. It is a thing. That is, the unit frame 1 of the present embodiment has a transom frame on the upper side and a door frame on the lower side with the transom 5 as a boundary. Needless to say, it is possible to use only a frame, or even a partition frame for forming a partition that partitions an indoor space without the door body 6 provided.
The reinforcement structure at the connecting portion of the vertical and horizontal frames according to the present invention is implemented at each connecting portion between the left and right vertical frames 2 and the upper frame 3 and the mesh 5 . Incidentally, the door body 6 is of course not limited to the sliding door type and may be of the hinged door type. As the transom board 7, a thick panel material such as the door body 6 may of course be used.

As shown in FIG. 4, the vertical frame 2 includes a straddle portion 2a that serves as a left-right direction inner side plate, and front and rear leg portions 2b that are bent outward in the left-right direction from both front and rear end edges of the straddle portion 2a. The vertical frame-side straddling piece portion 2a is located (distributed) between the straddle bottom surface portions 2c on both outer sides in the front-rear direction and the strut bottom surface portions 2c. ), and a straddle piece protruding surface portion 2d that is bent and formed so as to protrude outward in the left-right direction from the straddle bottom surface portion 2c.
In this case, the vertical frame-side leg piece portion 2b further includes a leg piece body portion 2e bent outward in the left-right direction from the front-back direction outer edge of the straddle bottom portion 2c, and the leg piece body portion 2e. and a leg tip end surface portion 2f that is bent inward in the front-rear direction from the laterally outer edge of the leg piece.
By constructing the vertical frame 2 in this manner, an opening 2h is formed between the front and rear leg end surface portions 2f, and the vertical frame side straddle portion 2a has a shallow groove ( The straddle bottom surface 2c is formed in a raised bottom shape, and the front and rear straddle bottom surface portions 2c are formed in a deep groove shape.

Further, in the unit frame 1 of the present embodiment, as described above, the transom R is formed by incorporating the transom board 7 in the upper part. A transom vertical frame 8 for fitting and incorporating the plate 7 is attached.
Specifically, the vertical frame for transom (vertical frame for transom) 8 is made of C-shaped steel arranged in a state where the inner side in the left-right direction becomes a narrow opening 8a. The left and right side edges of the transom plate 7 are fitted into the vertical frame 8 for the transom. , and the straddle portion 8b of the transom vertical frame 8 is fastened to the straddle protruding surface portion 2d via a screw 8c inserted from the opening 8a side (inside in the left-right direction). It has become.
The vertical frame 2 is attached to the frame side vertical member (for example, vertical rail material provided on the wall or pillar) K so that the vertical frame 2 is installed on the frame side. Of course, it may be embedded like the horizontal frame 4 .

On the other hand, as shown in FIG. 5, the upper horizontal frame 3 is made of C-shaped steel arranged with an opening 3c on the ceiling side (upper side). Specifically, the upper horizontal frame 3 has a lower straddle portion 3a and front and rear leg portions 3b. A straddle portion 9b of a transom upper frame (transom upper frame) 9 having an opening 9a for fitting and incorporating an edge portion is fastened via a screw 9c.
As with the vertical frame 2, the upper horizontal frame 3 is connected to a ceiling-side member (for example, a ceiling rail member) H so as to be attached to the frame side of the upper horizontal frame 3. As shown in FIG.
Incidentally, in the present embodiment, an auxiliary metal fitting (having a reinforcing function) 9d fastened to the straddle portion 9b of the upper transom frame 9 via a screw 9e is provided in the upper transom frame 9. Installed configuration.

The lower horizontal frame 4, as shown in FIG. A rail groove portion 4c in which a running rail (lower rail) 20 for guiding running of the running roller 6a provided at the lower end of the door body 6 is formed in the rail groove portion 4a in a recessed manner. The lower lateral frame 4 of the present embodiment has a structure in which the leg portion 4b is embedded in the floor F, but it goes without saying that it may be connected to the frame-side member.

As shown in FIG. 7, the mullet 5 has a straddle piece 5a as a lower side surface, both leg piece portions 5b as front and rear side surfaces, and an upper piece portion 5c in which an opening 5d is formed in the middle portion in the front-rear direction. An auxiliary metal fitting (provided with a reinforcing function) 5e, which is made of C-shaped steel and has a slant shape inside the mesh 5, is fastened to the mesh-side straddle portion 5a via a screw 5f. In this case, a running rail (upper rail) for guiding the running of the upper end of the door body 6 by fitting into a guide groove 6b formed in the upper end edge of the door body 6 is provided on the blind side straddle part 5a. A straddle portion of 5g is fastened together with the auxiliary metal fitting 5e via a screw 5f.

Furthermore, a lower frame for transom (lower frame for transom) 10 is attached to the upper surface of the upper piece 5c of the blind 5 in a state of covering (closing) the opening 5d. , front and rear picture frame halves 10a and 10b, and an opening 10c for inserting the lower edge of the transom board 7 is formed.
One frame half portion 10a has a lower piece portion 10d extending from one mesh side upper piece portion 5c to the other mesh side upper piece portion 5c beyond the opening 5d. One frame half portion 10a can be attached to the mesh 5 by being fastened via a screw 10f to a receiving metal fitting 10e provided in a state of bridging the opening 5d on the lower surface of the mesh side upper piece 5c. Configured.
On the other hand, the other frame half portion 10b is provided with a fastening piece portion 10h that is fastened to the upper piece portion 5c on the other side of the mesh 5 with a screw 10g.
Then, with one frame half 10a attached to the blind 5, the left and right edges and the upper edge of the transom plate 7 are fitted into the openings 8a and 9a of the vertical transom frame 8 and the upper frame 9. At the same time, with the lower end edge of the transom board 7 facing one frame half part 10a, the other frame half part (retaining edge) 10b is attached to the blind 5, so that the transom board 7 can be attached and detached. is configured to
Incidentally, when the transom board 7 is a thick panel body as described above, the vertical frame 8, the upper frame 9, and the lower frame 10 for the transom are not provided, and the vertical frame 2, the upper horizontal frame 3, Although it is attached to the mesh 5, its attachment structure is the same as the conventional one, so the detailed explanation is omitted.

Next, each connection structure between the vertical frame 2 and the upper horizontal frame 3, the vertical frame 2 and the blind 5, and the vertical frame 2 and the lower horizontal frame 4 will be described in order.
First, the vertical frame 2 has through holes 2m, 2n, and 2o for connecting with the upper horizontal frame 3, the mesh 5, and the lower horizontal frame 4, and is formed in the straddle portion 2a. The through-holes 2m and 2n for the upper horizontal frame 3 and the tunic 5 are formed to be wide in the front-rear direction to reach the front-rear direction inside portions of the front and rear strut bottom portions 2c with the strut projecting surface portion 2d interposed therebetween. A pair of through-holes 2o for the lower horizontal frame are formed in the front-rear direction and are narrow only in the front-rear direction inside portions of the front and rear strut bottom portions 2c.
The transom vertical frame 8 attached to the vertical frame 2 is set so that the upper and lower edges do not reach the through holes 2m and 2n for the upper horizontal frame 3 and the blind 5. As shown in FIG.

Next, regarding the connection structure between the vertical frame 2 and the upper horizontal frame 3, as shown in FIGS. The connecting receiving metal fittings 11 are attached, and the connecting receiving metal fittings 11 are installed in a state in which the upper and lower leg portions 11a are abutted against the upper horizontal frame side leg portion 3b and the straddle portion 3a, and screws 11b and 9c are attached. has been concluded through Further, the upper horizontal frame-side straddling piece portion 3a extends laterally outward beyond the left-right outer edge 3h of the vertical frame-side straddling piece portion 2a that abuts against the strut bottom portion 2c. A positioning protrusion 3i is formed to extend through the through-hole 2m in a state of abutting on the lower inner peripheral edge 2p of the hole 2m from above. It is configured so that the mounting position can be positioned. A notch portion 3j is formed at the tip edge of the positioning protrusion 3i.

On the other hand, on the left-right outer side of the vertical frame-side straddle portion 2a, a U-shaped connecting fitting 12 is arranged in which the straddle portion 12a faces inward in the left-right direction and the leg portions 12b are arranged up and down. The connecting fitting 12 passes through the upper horizontal frame through-hole 2m formed in the straddle protruding surface 2d of the vertical frame-side straddling piece 2a, and both front and rear portions of the connecting fitting-side straddling piece 12a are It is assembled at a position where it abuts on the straddle bottom surface portion 2c of the vertical frame side straddle portion 2a.
In this case, the upper and lower connecting fitting-side leg pieces 12b are fitted into the upper horizontal frame through-holes 2m. As a result, the connecting fitting 12 is fitted into the through-hole 2m for the upper horizontal frame in a force-fitting manner, whereby the connecting fitting 12 is configured to be fitted and attached to the vertical frame 2 without backlash. there is
Further, a pair of large-diameter connecting screw holes 12c and a pair of small-diameter reinforcing screw holes 12d are formed in the center side of the connecting fitting-side straddle portion 12a. The connecting fitting 12 is fitted into the upper horizontal frame through hole 2m from the straddle portion 12a side, and the connecting screw 12e passing through the connecting screw hole 12c and the upper horizontal frame through hole 2m is inserted into the connecting screw 12e as described above. By screwing into the connection screw hole 11d formed in the connection receiving metal fitting 11, the connecting metal fitting 12 and the connection receiving metal fitting 11 are integrated, thereby integrally fastening the vertical frame 2 and the upper horizontal frame 3. Thus, the connecting portion between the vertical frame 2 and the upper horizontal frame 3 is constructed.
In this case, the lower leg portion 12b of the connecting fitting 12 comes into contact with the positioning protrusion 3i formed on the upper horizontal frame 3 from above in a surface contact state (stacked state), thereby connecting the two. Although this can contribute to strengthening the connection between the metal fitting 12 and the upper horizontal frame 3, this surface contact portion may be integrated through fixing means such as welding or screw fixing, if necessary.

By fastening the connecting metal fittings 12 and the connecting receiving metal fittings 11 via the connecting screws 12e in this manner, the vertical frame 2 and the upper horizontal frame 3 are connected. A reinforcing metal fitting 13 is provided to reinforce the connecting portion.
Specifically, the reinforcing metal fitting 13 has a base piece portion 13a that abuts on the connecting metal fitting side straddle portion 12a from the lateral direction outside, and a lower end edge portion of the base piece portion 13a that is bent outward in the lateral direction. A bent piece portion 13b and an extension that extends (bends) downward from the left-right outer edge of the bent piece portion 13b and abuts on the straddle protruding surface portion 2d of the vertical frame side straddle piece portion 2a. A first screw hole 13d is formed in the base piece portion 13a, and a second screw hole 13e is formed in the extended piece portion 13c.
Then, by screwing the first reinforcing screw 13f inserted from the first screw hole 13d into the reinforcing screw hole 12d provided in the connecting metal fitting side straddle piece portion 12a, the base piece portion 13a and the connecting metal fitting 12 are connected. While the integral fastening is performed, the second reinforcing screw 13g inserted from the straddle portion 8b of the vertical frame 8 for transom is formed on the straddle projecting surface portion 2d of the vertical frame side straddle portion 2a. By screwing it into the screw hole 2k, the extension piece 13c and the vertical frame 2 are integrally fastened. and the upper horizontal frame 3 are reinforced.
In this case, the first screw 13f for fastening the reinforcing metal fitting 13 and the connecting metal fitting 12 is set to loosely fit through the reinforcing screw hole 11e formed in the straddle portion 11c of the connecting receiving metal fitting 11. It has become.

In this case, the second screw 13g for fastening the extending piece portion 13c and the straddle protruding surface portion 2d of the vertical frame side straddling piece portion 2a is provided inside the vertical frame 2 in the left-right direction. 8 are also fastened, the fastening portion between the reinforcing metal fitting 13 and the vertical frame-side straddling piece portion 2a using the second screw 13g is the extension piece portion 13c and the straddle portion of the vertical frame-side straddling piece portion 2a. The three-layered structure consisting of the one protruding surface portion 2d and the vertical frame 8 for the transom makes it possible to improve the reinforcement strength. As a result, the transom vertical frame 8 not only functions as a frame for attaching the transom plate 7, but also functions as a reinforcing member for reinforcing the connecting portion, thus making it possible to combine the members. It is
Further, in this embodiment, the extension piece 13c provided on the reinforcing metal fitting 13 is bent downward in a state of exceeding the connecting metal fitting side leg piece 12b on the lower side. The protruding piece 13c is formed by bending so as to pass through (fit into) a notch 12f formed in a U-shape (recessed fit) at the tip edge of the connecting fitting-side leg piece 12b. As a result, the function of preventing the longitudinal positional displacement of the extending piece portion 13c is exhibited, and the reinforcing function is improved.

Such connecting structure and reinforcing structure are similarly employed between the vertical frame 2 and the mulch 5, as shown in FIGS.
Specifically, as in the case of the upper horizontal frame 3, the mesh 5 is also formed with a positioning protrusion 5i, and the connection receiving metal fitting 14 attached to the mesh 5 is also attached to the upper horizontal frame 3. Similar to the metal fitting 11, there is provided a connection receiving metal fitting 14 having a U-shape in a front view, to which the leg portion 14a is fastened through the screws 14b and 10f. are formed with screw holes 14d and 14e.
Similarly to the connecting metal fittings 12 provided on the side of the upper horizontal frame 3, the connecting metal fittings 15 disposed on the side of the vertical frame 2 are also U-shaped with straddle portions 15a and leg portions 15b. A connecting screw hole 15c and a reinforcing screw hole 15d are formed in the connecting metal fitting 15a. The connecting metal fitting 15 and the connecting receiving metal fitting 14 are fastened by screwing them into the connecting screw holes 14d through the holes 2n, thereby connecting the vertical frame 2 and the mesh 5. A notch portion 15f is formed in the tip edge portion of the leg portion 15b.

In order to reinforce the connecting portion between the vertical frame 2 and the mesh 5 configured in this way, a reinforcing metal fitting 16 is provided in the same manner as the reinforcing metal fitting 13 provided on the upper horizontal frame 3 side. 16 also has a base piece portion 16a, a bent piece portion 16b, and an extended piece portion 16c. Instead, it is provided on the upper side.
The reinforcing metal fitting 16 is fastened to the connecting metal fitting 15 by screwing the first screw 16f inserted from the first screw hole 16d provided in the base piece portion 16a into the reinforcing screw hole 15d provided in the connecting metal fitting 15. On the other hand, the second screw 16g inserted from the straddle portion 8b of the transom vertical frame 8 is extended while penetrating the reinforcing screw hole 2k provided in the straddle projecting surface portion 2d of the vertical frame side straddle portion 2a. The reinforcing metal fitting 16 and the connecting metal fitting 15 are fastened by screwing into the second screw hole 16e provided in the projecting piece portion 16c. Reinforcement of the connecting portion with the eye 5 can be performed.
Also in this case, the fastening portion by the second screw 16g is composed of three layers: the straddle portion 8b of the transom vertical frame 8, the straddle protruding surface portion 2d of the vertical frame side straddle portion 2a, and the extension piece portion 16c. As in the case of the upper horizontal frame 3, the vertical frame 8 for the transom is also used as a reinforcing member for reinforcing the connecting portion between the mulch 5 and the vertical frame 2. It's becoming

Finally, regarding the connection structure between the lower horizontal frame 4 and the vertical frame 2, as shown in FIGS. The connection receiving metal fitting 17 is connected to the left and right edges of the rail groove portion 4c of the lower lateral frame side straddling piece portion 4a by welding the lower piece portion 17a. The lower piece 17a is bent upward so that the upper edge reaches the upper edge of the straddle portion 4a while being within the front-to-rear width of the portion 4c. Incidentally, the auxiliary member 20a incorporated in the edge portion of the rail portion 4c constitutes a sweeping member having an inclined surface 20b for sweeping out dust (contaminants) that has entered the lower rail 20. As shown in FIG.
On the other hand, in the lower horizontal frame through hole 2o formed in the lower end edge of the vertical frame 2, a cross-shaped connecting metal fitting 18 is disposed. A screw 18c inserted from the straddle portion 18a of the connecting fitting 18, which is applied with the tip end edge abutting on the straddle bottom surface portion 2c and is arranged outward in the left-right direction, is formed through the straddle protruding surface portion 2d. The vertical frame 2 and the lower horizontal frame 4 can be connected by screwing them into the screw holes 17d provided in the connection receiving metal fitting side vertical piece portion 17c while passing through the holes 2r.
The connection part connected in this way is further reinforced using a reinforcing metal fitting 19 . The reinforcing metal fitting 19 is L-shaped, and the laterally oriented lower piece portion 19a is fastened to the upper leg portion 18b of the connecting metal fitting 18 via a screw 19b, and the vertical piece portion 19c is connected to the vertical frame side straddle piece portion 2b. The connecting portion is reinforced by being fastened to the straddle protruding surface portion 2d via a screw 19d.

In the present embodiment constructed as described above, the connection between the vertical frame 2 and the upper horizontal frame 3 and between the vertical frame 2 and the mulch 5 is achieved by connecting metal fittings 12 and 15 arranged on the vertical frame 2 side to the upper horizontal frame. The frame 3 and the connecting fittings 11 and 14 provided on the mesh 5 are fastened through the connecting screws 12e and 15e, respectively. 13, 16 will be used for reinforcement.
A concrete example of the reinforcing structure of the connecting portion between the vertical frame 2 and the mesh 5 will be described in detail. With the left-right outer edge 5h of the mulch 5 abutting against the left-right inner edge, the connecting screw 15e is inserted from the connecting fitting 15 arranged on the outer side in the left-right direction of the vertical frame-side straddle portion 2a. The connection between the vertical frame 2 and the mesh 5 is achieved by fastening the connection receiving metal fitting 14 provided on the mesh 5 so as to pass through the through hole 2n for the mesh provided on the vertical frame side straddle portion 2a. be.
In this case, the reinforcing metal fitting 16 provided to reinforce the connecting portion is configured to include a base piece portion 16a and an extending piece portion 16c, and the base piece portion 16a is connected to the connecting metal fitting 15 for the first connection. The extension piece 16c is fastened to the upper vertical frame-side straddle piece 2a via the second connection screw 16g. The reinforcement structure is fastened to the vertical frame-side straddle piece 2b through the extending piece 16c of the reinforcing metal fitting 16 integrated with the vertical frame, thereby increasing the strength and improving the earthquake resistance.

In this case, the connecting fitting 15 has a U-shaped cross-section including a strut portion 15a facing the vertical frame-side strut portion 2a and upper and lower leg portions 15b. The extension piece 16c is bent from the base piece so as to face the connecting metal fitting side straddle piece portion 15a and extend over the connecting metal fitting side leg piece portion. 16c is formed by bending at the notch portion 15f formed in the tip edge of the connecting fitting side leg portion 15a, and abuts on the strut protruding surface portion 2d of the vertical frame side straddling portion 2a. The contact portion is fastened via the screw 16g, which promotes integration and contributes to increasing the strength of the connecting portion.

In this device, the vertical frame-side straddle portion 2a is located between the front and rear strut bottom portions 2c and the straddle bottom portions 2c, and protrudes laterally outward beyond the straddle bottom portions 2c. A through-hole 2n for the mulch 5 having a length extending from the straddle protrusion surface portion 2d to a part of both straddle bottom surface portions 2c is formed. Then, both front and rear end side portions of the connecting metal fitting side straddle portion 15a are in contact with the front-rear direction outer surface portion of the straddle bottom surface portion 2c in a state of penetrating the strut projecting surface portion 2d of the blind through hole 2n. However, in this case, as a result of the positioning projecting piece 5i abutting against the lower inner peripheral edge 2p of the through hole 2n for the trundle 5 being provided on the trundle side straddle portion 5a, the length of the trundle 5 Positioning with respect to the frame 2 (positioning in the vertical and horizontal directions) can be easily performed, and the work for connecting the vertical frame 2 and the mulch 5 can be improved.
Moreover, in this case, as a result of the positioning projection 5i facing the lower leg 15b of the connecting fitting 15 in surface contact, the positioning projection 5i and the lower leg 15b of the connecting fitting 15 are in contact with each other. 15b will be in a laminated state and can contribute to the improvement of the reinforcing function.

In addition, since the tip edge of the connecting metal fitting side leg portion 15b protrudes laterally outward beyond the projecting surface of the strut, the connecting metal fitting 15 can be securely fitted into the vertical frame 2. However, a notch portion 15f is formed at the tip edge of the connecting metal fitting-side leg piece portion 15b so that the bent portion of the extending piece portion 16c of the reinforcing metal fitting 16 is aligned with the straddle projecting surface portion 2d of the vertical frame 2. They are in substantially the same position (same position in the left-right direction), and as a result, the connection of the reinforcing metal fitting-side extending piece 16c to the straddle projecting surface 2d is ensured, and the structure can be simplified.
Moreover, in this case, a transom vertical frame 8 is provided at a portion where the straddle protruding surface portion 2d and the extension piece portion 16c are fastened, and the extension piece portion 16c has a three-layer structure together with the transom vertical frame 8. As a result, the fastening portion is reinforced while the transom vertical frame 8 is also used as a reinforcing member, so that the strength can be increased and the number of parts can be reduced due to the sharing of parts. become.

In this way, the connecting portion between the vertical frame 2 and the mesh 5 is reinforced using the reinforcing metal fittings 16, so that an excellent earthquake-resistant structure can be exhibited. 2 and the upper horizontal frame 3, the same effect is exhibited except that the extending direction of the reinforcing metal fitting side extending piece portion 13c is downward.

The present invention is of course not limited to the above-described embodiment, but in the above-described embodiment, the connecting portion between the vertical frame 2 and the upper horizontal frame 3, the connecting portion between the vertical frame 2 and the mesh 5 However, if necessary, only one of them may be used, and it is of course possible to adopt it for the connection between the vertical frame 2 and the lower horizontal frame 4. .
Further, as the reinforcing metal fittings 13 and 16 for carrying out the present invention, the extension pieces 13c and 16c are provided on one side in the vertical direction in the above embodiment, but the present invention is not limited to this. As in the second embodiment shown, at the joint between the vertical frame 2 and the mesh 5, the extension piece 16c provided on the reinforcing metal fitting may be extended both upward and downward. By doing so, it is possible to further increase the strength.

INDUSTRIAL APPLICABILITY The present invention can be used as a reinforcing structure in a connecting portion of vertical and horizontal frames constituting a frame member such as a door frame provided in a doorway or a partition provided in a building such as a building or a residence.

Reference Signs List 1 unit frame 2 vertical frame 2a straddle portion 2b leg portion 2c straddle bottom portion 2d straddle piece protruding surface portion 2m through-hole for upper horizontal frame 2n through-hole for blind 3 upper horizontal frame 3a straddle portion 3b leg portion 3i Positioning projecting piece 5 No mesh 5a Straddle piece 5b Leg piece 7 Transom board 8 Vertical frame for transom 11 Connecting fitting 11a Leg piece 11c Straddle piece 12 Connecting fitting 12a Straddle piece 12b Leg piece 12c Connecting screw Hole 12d Reinforcement screw hole 12e Connection screw 13 Reinforcing metal fitting 13a Base piece portion 13c Extension piece portion 13d First screw hole 13e Second screw hole 14 Connection receiving metal fitting 14a Leg piece portion 14c Straddle piece portion 15 Connection metal fitting 15a Straddle piece Part 15b Leg piece 15c Connecting screw hole 15d Reinforcement screw hole 15e Connection screw 16 Reinforcing metal fitting 16a Base piece 16c Extension piece 16d First screw hole 16e Second screw hole

Claims (7)

A vertical and horizontal frame having a straddle portion and a leg portion is provided, and in a state in which the lateral outer edge portion of the horizontal frame is abutted against the lateral inner edge portion of the vertical frame side straddle portion,
The connecting screws inserted from the connecting metal fittings arranged on the left-right direction outer side of the vertical frame side strut part are fastened in a state of penetrating the vertical frame side straddling part to the connection receiving metal fittings provided on the horizontal frame side straddling part. In the connection part of the vertical and horizontal frames configured to connect the vertical and horizontal frames by tightening,
In reinforcing the connecting portion using a reinforcing metal fitting,
The reinforcing metal fitting has a base piece portion disposed laterally outside of the connecting metal fitting, and an extension piece portion extending from the base piece portion so as to face the lateral outer side surface portion of the vertical frame-side straddling piece portion. In addition, the base piece portion is fastened to the connecting fitting via the first reinforcing screw, and the extending piece portion is fastened to the vertical frame side straddling piece portion via the second reinforcing screw. Reinforcing structure at the joint of the frame. The connecting fitting has a U-shaped cross section with a strut portion facing the vertical frame side straddle portion and upper and lower leg pieces,
The reinforcing metal fitting is formed by bending the base piece portion so that the base piece portion faces the connecting metal fitting-side straddling piece portion, and the extending piece portion extends beyond the connecting metal fitting-side leg piece portion. Item 1. Reinforcement structure at the connection part of the vertical and horizontal frames according to item 1. The vertical frame-side straddle portion includes straddle bottom portions on both front and rear sides and a straddle protruding surface portion located between the straddle bottom portions and protruding laterally outward from the straddle bottom portion. is,
The vertical frame-side strut portion is formed with a through-hole having a length from the strut protruding surface portion to a part of the bottom surface portion of both struts and through which the connecting screw penetrates,
Both front and rear end side portions of the connecting fitting-side straddle portion are in contact with the surface portion of the straddle bottom portion on the front-rear direction outer side of the through hole in a state of penetrating the straddle projecting surface portion portion of the through hole,
3. The horizontal frame-side straddling piece according to claim 2, wherein a positioning protrusion is provided for positioning the horizontal frame with respect to the vertical frame by coming into contact with the inner peripheral edge of the through hole. Reinforcement structure at the connecting part of the vertical and horizontal frames. 4. The reinforcing structure of the connecting portion of the vertical and horizontal frames according to claim 3, wherein the positioning protrusion faces the lower leg portion of the connecting fitting. The connecting fitting-side leg piece portion has a tip edge portion that protrudes laterally outward from the straddle projecting surface portion,
A notch portion is formed in the leading edge portion of the connecting metal fitting side leg portion so that at least a portion corresponding to the reinforcing metal fitting extension piece portion is substantially at the same position as the strut projecting surface portion,
3 to 5, wherein the reinforcing metal fitting extending piece portion is bent at the notch portion of the connecting metal fitting side leg piece portion and is in contact with the straddle projecting surface portion of the vertical frame side straddling piece portion. 6. Reinforcement structure in connection part of vertical and horizontal frames according to any one of 5. 6. The connecting portion of the vertical and horizontal frames according to claim 5, wherein a reinforcing plate is provided on the strut projecting surface portion, and the extending piece portion is fastened to the strut projecting surface portion of the portion reinforced by the reinforcing plate. reinforced structure. 7. The reinforcing structure for connecting the vertical and horizontal frames according to claim 1, wherein a pair of the extension pieces are formed to extend from the base piece toward both sides in the vertical direction.

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