JPH0636231Y2 - Bonding structure of structural materials - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a connecting structure for vertically connecting structural materials constituting a door frame or the like.

[Conventional technology]

As shown in FIG. 13, a door frame of a building is constructed by assembling standing frames 1, 1 on both sides, a top frame 2 and a plate 3 into a frame shape.

The standing frames 1, 1, the top frame 2, and the dish plate 3 are made of structural materials having various cross-sectional shapes, and the ends of the structural materials are connected at right angles.

Conventionally, the standing frames 1 and 1 and the top frame 2 are connected by 45 ° at both ends.
Either they were cut and abutted, or both ends were cut at a right angle and abutted.

[Problems to be solved by the device]

By the way, the conventional butt-joining has a problem in that it is difficult to align the abutting portions of the standing frame and the top frame, an accurate finish is difficult to obtain, and workability at the time of joining is poor.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a bonding structure for structural materials, which can easily and efficiently bond structural materials and has excellent bonding strength and a beautiful finish in order to solve the above problems. is there.

[Means for Solving the Problems]

In order to solve the above-mentioned problems, the present invention has a structure in which a U-shaped bent portion composed of a side wall, a rear wall, and an inner wall is formed on both sides of a substrate so as to face each other on the same plane side. The outer width of one of the structural members is formed to fit between the opposite side walls of the other structural member, and the bent portions on both sides of the end of the one structural member match the outer width of the side wall of the other structural member. A protrusion is provided with a length, a notch for fitting the thickness of the board is provided at the root portion of the side wall of the protruding bent portion, and the end of the board of the other structural material is provided with a depth to accommodate the width of the inner wall of the one structural material. A structure is adopted in which a recessed portion is provided, the notch of one structural material is fitted to the substrate of the other structural material, and the protruding bent portion is fitted inside the end portion of the bent portion of the other structural material. .

[Action]

The protruding bent part of one structural material is exposed to the end of the other structural material,
If the notch provided at the base of this protruding bent portion is fitted to the substrate of the other structural material and the protruding bent portion is fitted into the bent portion of the other structural material, both structural materials will be arranged at a right angle, and they will be positioned correctly. Becomes

〔Example〕

An embodiment of the present invention will be described below with reference to the accompanying drawings.

As shown in FIGS. 1 and 2, since the structural material used for the upright frame 1 of the door frame and the structural material used for the top frame 2 have the same cross-sectional shape, the same parts will be denoted by the same reference numerals.

Both structural members are formed by bending a U-shaped projection 5 for door-contact in the middle of the strip-shaped substrate 4 so as to project to one surface side, and are bent on both sides along the longitudinal direction of this substrate 4 toward the other surface side. The bent portions 6, 6 are formed in a continuous cross-sectional shape.

The bent portions 6, 6 include a side wall 7 that is bent at a right angle from a side edge of the substrate 4, a rear wall 8 that is bent inward at a right angle from an edge of the side wall 7, and a side of the rear wall 8 toward the substrate 4 side. A flange wall 10 is formed in a U-shaped cross section with the inner wall 9 that is bent toward the front side, and a flange wall 10 that is parallel to the substrate 4 is provided at the edge of the inner wall 9.

The standing frame 1 and the ceiling frame 2 are, for example, vinyl chloride laminated steel plates,
It is formed by bending a colored steel plate that is colored stainless steel, aluminum, iron, or the like, or is formed by using a non-weldable material such as an aluminum mold material, and the outer width of the top frame 2 is opposite side walls 7, 7 of the standing frame 1. The width is set to fit in between.

As shown in FIG. 2, at the end of the top frame 2, the bent portions 6, 6 on both sides are protruded by a length B corresponding to the inner width A of the side wall 7, and the side walls 7a of the protruding bent portions 6a, 6a. , 7a is provided with a notch 11 in which the plate thickness C of the substrate 4 is fitted at a depth that leaves the plate thickness C, and the U-shaped protruding portion 5 of the substrate 4 is provided with a U-shaped frame 1 A recess 12 is formed in which the projection 5 fits.

In the illustrated case, the widths of the side walls 7a, 7a of the protruding bent portions 6a, 6a are made slightly shorter, and the end portion of the flange wall 10 is made shorter than the protruding bent portion 6a by a length corresponding to the width of the inner wall 9.

FIG. 7 shows the end structure of the top frame 2 in an expanded manner. The top frame 2 can be manufactured by cutting the end portion of the material plate as shown in the same figure and then bending it.

Next, as shown in FIG. 2, the standing frame 1 has protrusions 14 for fitting recessed portions 13 having a depth corresponding to the width D of the inner wall 9 at the upper end portion of the substrate 4 into the bent portions 6 on both sides thereof. , 14 are provided, and the protrusion 14,
The upper end of 14 is made lower than the upper end surface of the side wall 7 by the plate thickness C of the top frame 2, and a notch 15 corresponding to the width D of the inner wall 9 is provided at the upper end of the inner wall 9.

FIG. 6 shows the tip shape of the standing frame 1 in a developed state.

FIGS. 1 to 5 show an example in which the top frame 2 and the standing frame 1 joined at right angles are fixed using a box-shaped metal piece 21 and a tapping screw 22, and the box-shaped metal piece 21 is a metal plate. The flange wall 10 and the mounting walls 25 that are fixed by using the crimping tacks 24 and the screws are bent and formed on both sides of the plate 23 that overlaps the substrate 4 of the top frame 2.
At both ends of the plate 23, fitting recesses 26, 26 of the protrusion 5 and standing frame fixing walls 28 sandwiching the fitting recess 26 and having prepared holes 27 of the tapping screws 22 are provided upright on both sides. Has been formed.

At the upper end of the board 4 in the standing frame 1, a screw insertion hole 29 is located at a position facing the lower hole 27 when the top frame 2 and the standing frame 1 are joined at a right angle.
Is provided, and the tapping screw 22 inserted into the insertion hole 29 through the contact plate 30 is screwed into the lower hole 27 of the box-shaped metal product 21 to fix the top frame 2 and the standing frame 1 through the box-shaped metal product 21. Will be done.

FIGS. 8 and 9 exemplify a fixing means for fixing the top frame 2 combined with the standing frame 1 to the upper side, and FIG. The top frame 2 is fixed to the upper side by engaging the end portion of the substrate 4 in the top frame 2 which is formed and combined at a right angle with the lower portion of the projection 31.

Moreover, in the example shown in FIG.
And the end of the substrate 4 in the top frame 2 and this cut and raised 32
It is fixed to the upper side by engaging with.

Next, FIGS. 10 to 12 show another example of the treatment of the bent portions 6 and 6 in the connection of the standing frame 1 and the top frame 2 and the box-shaped hardware 21a.

In the figure, protruding bent portions 6 provided on both sides of the end portion of the top frame 2
The inner walls 9 of a and 6a are cut out in a range corresponding to the width D of the inner wall 9, and the end portions of both bent portions 6 and 6 of the standing frame 1 are provided with the side wall 7 and the rear wall 8.
And the inner wall 9 is finished on the same surface.

The metal box is used for the box-shaped hardware 21a. Standing walls 42, 42 are provided opposite to each other on both sides of a plate 41 of the top frame 2 overlapping the substrate 4, and the flange walls of the top frame 2 are provided at the upper ends of both the standing walls 42, 42. A horizontal upper wall 43, 43 to be fixed to 10 is formed in series, and a hole 44 for mounting for fixing to the flange wall 10 by using screws or tacks is provided in the upper wall 43, 43, and the upper walls 43, 43 are also provided. Pilot holes 47 of tapping screws are formed in downward end walls 45 provided at both ends of the plate and downward pieces 46 provided at end portions of the plate 41.

The box-shaped metal piece 21a shown in FIGS. 11 and 12 has a structure superior in strength to the box-shaped metal piece 21 shown in FIG.

The connection structure of this invention has the above-described structure, and the standing frame 1
The end portion of the top frame 2 is made to face the upper end of the right angle, and the side walls 7a, 7a of the projecting bent portions 6a, 6a in the top frame 2 are bent portions 6, 6 of the top frame 2.
When the upright frame 1 and the top frame 2 are brought close to each other so that the notches 11 and 11 are fitted into the substrate 4 of the upright frame 1, the upright frame 1 and the top frame 2 are moved as shown in FIG. , Front and rear, left and right, and downwardly aligned.

In this state, if the box-shaped metal fitting 21 attached to the top frame 2 and the standing frame 1 are joined by tapping screws 22, the standing frame 1 and the top frame 2 are joined at a right angle.

Further, when the fixing means shown in FIGS. 8 and 9 is adopted,
The top frame 2 is positioned and fixed also above, and it is possible to perform a right-angled connection without using the tapping screw 22.

The cut end surfaces of the standing frame 1 and the top frame 2 are coated with a color similar to that of the outer surface to improve the appearance.

〔effect〕

As described above, according to the present invention, since the structure is as described above, it is possible to join the structural materials at a right angle with the minimum cutting surface, and moreover, it is possible to join the structural materials in a state where they are accurately positioned. , A beautiful finish is obtained.

Also, since the protruding bent part of one structural material is fitted in the bent part of the other structural material, the plate thickness end face of one structural material can be seen from the front even if there is a vertical difference in the joining part. It is possible to maintain a good-looking combined state.

[Brief description of drawings]

FIG. 1 is a perspective view showing a connection state of a connection structure according to the present invention, FIG. 2 is an exploded perspective view of the same as above, FIG. 3 is a vertical sectional front view of the connection state, and FIG. 4 is an arrow IV- in FIG. A vertical side view along IV, FIG. 5 is a plan view showing a part of the connecting portion, FIG. 6 is a development view of a standing frame, FIG. 7 is a development view of a top frame, and FIGS. 8 and 9 are standing views. Sectional drawing which shows the fixing means to the upper part of the top frame with respect to a frame,
FIG. 10 is a perspective view showing another example of the joint structure and the box-shaped metal piece,
The figure is an exploded perspective view of the above, FIG. 12 is a plan view of the box-shaped metal article in the above, and FIG. 13 is a front view showing a door frame. 1 ... Standing frame, 2 ... Top frame, 4 ... Substrate, 6 ... Bend, 6a ... Projection bend, 7 ... Side wall, 8 ... Rear wall, 9 ... Inner wall, 11 ... Notch , 13 ...... recessed part, 14 ...... protruding part.

Claims (1)

[Scope of utility model registration request] 1. A structural material having a U-shaped bent portion consisting of a side wall, a rear wall, and an inner wall is formed on both sides of a substrate so as to face each other on the same plane side. The outer width is formed so as to be fitted between the opposite side walls of the other structural material, and the bent portions are projected on both sides of the end portion of the one structural material by a length corresponding to the width of the side wall of the other structural material, and the projected bending A notch for fitting the thickness of the substrate is provided at the root portion of the side wall of the portion, and a recessed portion having a depth to accommodate the width of the inner wall of the one structural material is provided at the end of the substrate of the other structural material. A joint structure of structural materials in which a notch is fitted to a substrate of the other structural material, and a protruding bent portion is fitted inside an end portion of the bent portion of the other structural material.