JP2916184B2 - Method for manufacturing wall panel frame - Google Patents

Description

The present invention relates to a method for manufacturing a frame of a wall panel of a building or the like.

(Prior Art) A wall panel of a prefabricated building is formed by incorporating a plurality of types of components (a so-called composite panel) and is manufactured in a factory. Conventionally, this wall panel has four light-weight shaped steel members fixed with jigs, and the four corners are joined by welding to form a rectangular frame. While filling the foam material, a flexible board or the like is adhered to both sides of the foam material and the frame.

(Problems to be Solved by the Invention) However, the conventional frame body of the wall panel has a large amount of material waste due to the appearance of cut ends when processing the joint shape of a lightweight shaped steel material.
In addition, smoke and sparks generated during the welding process not only deteriorate the working environment, but also require a skill to perform the welding operation, so that the work is not quick and the productivity is low.

An object of the present invention is to provide a method of manufacturing a frame of a wall panel configured to facilitate assembly processing without impairing the working environment and productivity in view of such conventional circumstances.

(Means for Solving the Problems) According to the method for manufacturing a frame of a wall panel of the present invention, a tongue-like connecting piece is formed at one end of a rectangular flat plate, and a cutout recess is formed at the other end. A flat plate is bent along the length direction to form a channel having a substantially U-shaped groove from one side plate, a bottom plate, and the other side plate. Are formed so as to face each other, and at one end of the bottom plate of the groove, a tongue-like connecting piece is bent at a right angle in a direction opposite to the projecting direction of the above-mentioned both side plates to project, and
The bottom plate of the groove portion of the channel member thus formed is mountain-folded at the slit-shaped cutting position to form a pair of L-shaped frame members, and a connecting piece formed at one end of each of the pair of frame members. Are inserted from the grooves at the other ends of these frame members, the base ends of the connecting pieces are fitted into the cutout recesses, and these connecting pieces and the bottom plate of the groove are joined by caulking means.

(Operation) The frame member forming the frame body is formed so that there is no waste of material by bending a flat plate on which a continuous piece and a slit-like cut are formed into a channel having a substantially U-shaped groove. Is done. A pair of frame members are prepared by bending the channel into an L-shape. The connecting pieces of the pair of frame members are inserted from the grooves at the other ends of the frame members, and the base ends of the connecting pieces are fitted into the cutout recesses. They are connected to each other by caulking means to form a rectangular frame. The frame of the wall panel configured as described above can be machined by cutting, bending, and caulking all the processing portions from a flat plate.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

The frame 1 shown in FIG. 1 is applied to a rectangular wall panel. For example, as shown in Fig. 7, 1.4mm thickness x 74mm
A rectangular flat plate 2 obtained by cutting a flat steel material having a width into a required length is trough-folded along bending lines 3 and 4 along the length direction to form a channel 5 as shown in FIG. This channel member 5 has one side plate 6
, The bottom plate 10 and the other side plate 7 are formed to have a substantially U-shaped cross section. One side plate 6 is formed slightly higher than the other side plate 7. Slit-shaped cuts 8 and 9 are formed on both side plates 6 and 7 at the portions where the channel member 5 is folded in the valley as described above. A tongue-shaped connecting piece 11 is formed at one end of the bottom plate 10. The connecting pieces 11 are provided by forming slit-shaped cuts 11a, 11a corresponding to the plate thickness on both sides of the bottom plate 10. As shown in FIGS. 4 to 6, the connecting piece 11 has a base end bent at a right angle in a direction opposite to the direction in which the side plates 6, 7 protrude. At the other end of the bottom plate 10, a notch concave portion 12 corresponding to the width and plate thickness of the connecting piece 11 is formed. The channel member 5 configured as described above is mountain-folded at the cuts 8 and 9 to form an L-shaped frame member 13 as shown in FIG. Then, a pair of the L-shaped frame members 13 is prepared. The pair of frame members 13, 13 have the connecting pieces 11, 11 formed at one end thereof inserted into the grooves at the other end of the frame members, and cut the base ends of the connecting pieces 11, 11 to each other. Notch recesses 12 and 12 are fitted together, and each connecting piece 11,
11 and each bottom plate portion 10 of the groove portion are connected by caulking means. This caulking means is performed, for example, by being caulked 14 by a caulking device 31 as shown in FIGS. 10 and 11. Reference numeral 15 denotes a middle crosspiece, which is attached when the frame 1 is provided with a window or the like. Thus, the rectangular frame 1 is formed by combining and connecting the pair of frame members.

The caulking device 31 is a frame that can be moved up and down.
A caulking machine main body 33 is provided on 32 with driving means (not shown) such as a cylinder so as to be able to advance and retreat. A die holder 34 is fitted into this caulking machine body 33 and screwed 35,
A die 36 is fitted into the die holder 34 and screwed 37. Furthermore, the frame 32 in front of the caulking machine body 33
A punch holder 38 is fixed thereon, and a punch 39 whose center is matched with the die 36 is fitted into the punch holder 38 and screwed 40 (see FIG. 11). A guide block 41 is fixed to the frame 32 so as to be able to move up and down simultaneously with the caulking machine main body 33 and the punch holder 38. The guide block 41 holds the middle rail 15 as shown in FIG. Or the like. On the frame 32, there are provided guide blocks (roads shown) for fixing the four corners of the frame 1 and the like.

When the pair of frame members 13, 13 are placed on the caulking device 31 and fixed by the respective guide blocks, the connecting pieces 11, 11, and the bottom plates 10, 10 are shown in FIGS. 12 and 13. As described above, the caulking machine main body 33 moves forward and is cut out by the die 36 and the punch 39 to form a protruding edge on the die 36 side.
As a result, it is pushed outward and crushed to form an eyelet-shaped hollow 14.

It is preferable that a protruding corner piece 21 as shown in FIG. 3 is fitted to a missing portion of both side plates 6, 7 formed at the mountain-folded portions of the frame members 13, 13 constituting the frame 1. The fitting of the protruding corner piece 21 is performed by fitting and fixing the leg pieces 12a, 12b between the side plates 6, 7. This fitting can be achieved simply by inserting the leg pieces 21a, 21b between the side plates 6, 7. Further, the leg pieces 21a, 21b and the side plates 6, 7 may be caulked and fixed. As shown in FIG.
A thin steel plate 22 and a flexible board 23 are mounted on the outer surface of the frame 1. After the inside of the frame 1 is filled with the phenolic resin foam 24, a flexible board 25 covering the phenolic resin foam 24 is mounted on the inner surface of the frame 1 to form the outer wall panel 26. In this state, the frame members 13 and 1
Since the corner pieces 21 are fitted into the missing portions of the side plates 6 and 7 formed in the mountain fold part 3, the flexible boards 25 and the like mounted on both side surfaces of the frame 1 are damaged at the corners. Or not.

 Next, the operation of the above embodiment will be described.

The frame member 13 is formed by bending a flat plate 2 obtained by cutting a flat steel into a required length into a channel 5. Furthermore, this channel 5
One end of the bottom plate 10 is bent to form a connecting piece 11, and the bottom plate
At the other end of the notch 10, a notch concave portion 12 capable of engaging with the connecting piece 11 is provided, and is mountain-folded at slit-shaped cuts 8, 9 formed so as to face both side plates 6, 7. The bottom plate 10 is bent at a right angle to form an L-shape. Therefore, it can be easily obtained because it is made of a flat steel material having the simplest shape as a raw material, and can be easily punched out of a connecting piece 11, a notch concave portion 12, and slit-like cuts 8, 9, and a bending process of a bottom plate 10. Can be easily processed by a machine tool such as a punching machine and a bending machine. Also,
Since the frame body 1 is formed in a rectangular shape by a pair of frame members 13, 13 being connected to the respective connecting pieces 11, 11 and the bottom plates 10, 10 by hollowing out 14, 14, a machine by a caulking device 31 is used. It can be done only by processing.

(Effect of the Invention) According to the method of manufacturing a wall panel frame of the present invention, a connecting piece and a slit-like cut are previously formed on a flat plate, and the flat plate is bent to form a channel, and the channel is formed. An L-shaped frame member is formed from the material. A pair of the frame members is prepared, and the frame member is formed by a caulking means. As described above, the number of joints is reduced to two in comparison with the conventional welding process, and since the joining process is performed by caulking means, not only the working environment is greatly improved, but also the productivity is remarkably improved. There are advantages.

[Brief description of the drawings]

The drawings show an embodiment of the present invention. FIG. 1 is an external perspective view of a frame member, FIG. 2 is an external perspective view of a frame member, FIG. 3 is an external perspective view of an outer corner piece, and FIG. FIG. 5 is a front view, FIG. 6 is a side view, FIG. 7 is a plan view of a cut plate, and FIG. 8 is a bend of FIG. Front view showing a part of the channel member bent at the line, FIG.
Fig. 8 is a side view of Fig. 8, Fig. 10 is an external perspective view of the caulking device, Fig. 11 is a longitudinal sectional view of a main part of the caulking device, and Figs. 12 and 13 illustrate hollowing of the frame body. Fig. 14,
The figure is a longitudinal sectional view showing one end of the outer wall panel. DESCRIPTION OF SYMBOLS 1 ... Frame body, 2 ... Flat plate 5 ... Channel member, 6 ... One side plate 7, ... Other side plate, 8, 9 ... Slit-shaped cut 10 ... Bottom plate, 11 ... Connection piece 12 ... Notch recess, 13 ... Frame member 14 ... Hollow-out, 21 ... Outer corner piece 26 ... Wall panel

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁶ , DB name) E04C 2/38

Claims (1)

(57) [Claims] 1. A tongue-shaped connecting piece is formed at one end of a rectangular flat plate, a cutout recess is formed at the other end, and this flat plate is bent along the length direction to form one side plate, a bottom plate and another. A groove having a substantially U-shaped cross-section is formed from the side plate, and slit-shaped cuts are formed in the groove on both sides of the groove so as to face each other, and a tongue is formed at one end of the bottom plate of the groove. The connecting plate is bent at right angles in the direction opposite to the direction in which the side plates protrude, and the bottom plate of the groove of the channel formed in this manner is folded at the slit-like cut position. L
A pair of frame members having a U-shape are formed, and connecting pieces formed at one end of each of the pair of frame members are inserted from grooves at the other ends of the frame members, and the base ends of the connecting pieces are cut out. A method of manufacturing a wall panel frame, comprising: fitting the connecting piece and a bottom plate of a groove by means of caulking means.