JPS6041421Y2 - Overhead door panel structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the structure of a panel for an overdoor door.

Overhead doors are made up of multiple panels connected by hinges.

Each panel was a horizontally long roll-formed member, with vertical frames on both sides and two or more middle frames attached by spot welding, and assembled on site by attaching hinges between the panels.

According to this method, since unpainted plated steel plates are used, it is necessary to perform a rust prevention treatment on the welded parts and then apply a finishing coat.

In addition, when assembling with colored materials, using the conventional spot welding method, repairing the burnt paint film was a difficult task, and it was not possible to do it as cleanly as before welding.

This invention not only omits the complicated painting process as mentioned above, but also
The aim is to provide panels of superior quality that are assembled using a new riveting method and using colored steel sheets produced using large-scale equipment that are superior to home-painted sheets.

Now, the process of attaching vertical and central frames to panels made of roll-formed colored steel sheets using a riveting machine can be done in the same way as spot welding.

In the riveting machine, a rivet with a length according to the plate thickness is fed into the upper supply port in advance, and when riveting, the rivet is automatically set at the lower end of the stem 7 (two-dot chain line in Figure 5). .

Then, when a foot-operated switch is turned on, the stem 7 descends, pushes down the rivet R, and makes a hole with the tip of the rivet R.
It protrudes from the bottom of the panel and is crimped with a punch 8 (Fig. 5).

In addition, when using a hollow rivet as shown in FIG. 6, the work between the prepared holes for inserting the rivet into the plate material is omitted.

By the way, the vertical stile 2 and the middle stile 3 have different plate thicknesses t□ and t2 (tl>t2).

Because the rivets must be appropriate for the board thickness,
To assemble panel 1, first complete the process of attaching only the middle stile 3, then load the rivets for the vertical stile 2 into the riveting machine, adjust the stroke, and glue the long rivets for thick plates. have to work.

Alternatively, you can create a stile dedicated to the middle stile and a stile dedicated to the vertical stile, but
This requires handling a long panel twice, which is completely inefficient.

The present invention is intended to solve the above-mentioned problems, and will be described in detail below with reference to the accompanying drawings.

In FIG. 1, reference numeral 1 indicates one panel of an overboard door, which, as shown in FIG. 2, has irregularities due to a roll skin layer in the lateral direction.

2 are stiles fixed with rivets 4 on both sides of panel 1, 3
is a stile fixed to the center of the panel.

The thickness t1 of the vertical stile 2 is larger than the thickness of the middle stile 3 (1, >
12) Preliminary processing as described below is performed on the vertical stile using the same material.

Reference numeral 5 denotes hinge holes drilled near the upper and lower ends of the vertical stile 2 and the middle stile 3, whereby the upper and lower adjacent panels are hinged and assembled in a bendable manner.

As shown in FIG. 3, the vertical stile 2 has a plate thickness t□ and a U-shaped cross section, one flange 2a of which is riveted to the outside of the panel 1, and the other flange 2b to the inside.

Then, as shown in FIG. 8, the periphery of the rivet parts 4a and 4b is pressed to form a recess 9, and the thickness of the recess 9 is made approximately equal to the thickness t2 of the middle frame 3. .

Reference numeral 6 denotes a hole provided in the flange 2b concentric with the rivet joint portion 4b, through which a punch is inserted when the 4b portion of the vertical stile is joined with a rivet.

The middle stile 3 has a box-shaped cross section as shown in Fig. 4, and has a hinge hole 5.
are pre-drilled, but are not otherwise pre-processed.

Now, in order to rivet stile 3 and stile 2 to panel 1, first attach stile 2 to one end of panel 1, then attach multiple stile 3, and then attach the same stile 2 to the opposite end. Can be installed using the same type of rivet on a riveting machine.

According to this construction method, there is no need to wastefully move the panel of the rad door to a relatively small and long overboard, so even if the press work to form the recess 9 of the vertical stile 2 is increased in the previous process, it can be avoided. Overall work efficiency will be significantly improved.

If a thin recess is formed in the vertical stile 2 by pressing a recess with a diameter larger than the rivet diameter, for example, a portion having a diameter of about 1077EI71, the circumference will bulge slightly, but there is no quality problem.

Rather, it is convenient because it allows the rivet head to sink slightly.

[Brief explanation of drawings]

Figure 1 is a front view of the interior of the over door panel. Figure 2 is a sectional view taken along the line ■-■ in Figure 1. Figure 3 is a perspective view of the stile. Figure 4 is a perspective view of the middle stile. FIG. 5 is a front view showing the method of driving rivets. Figure 6 is a front view of the rivet. Figure 7 is a bottom view of the rivet. FIG. 8 shows details of the rivet parts between the panel, vertical stile, and middle stile in the present invention. In the figure, 1...panel, 2...stile, 2a, 2b...flange (of the stile), 3...
...Inner frame, 4...Rivet, 4a, 4b
... Rivet driving part, 5 ... Hinge hole,
6... (for punch insertion) hole, 7...
- Stem, buttock... punch, 9... recess (formed in a stile).

Claims (1)

[Scope of utility model registration request] As reinforcement for the horizontally long panel 1, a vertical stile 2 with a thickness t1 is installed at both ends of the panel 1, and a middle stile 3 with a thickness t2 smaller than the thickness t□ is placed in the middle part.
The riveted portion 4 of the thicker stile 2 is attached to the panel of the overlador door which is fixed by riveting.
The peripheries of a and 4b are press-worked to form a recess 9 so that it is approximately equal to the thickness t2 of the middle frame 3, and the walls are made thinner, so that the fixed parts of the vertical frame 2 and the middle frame 3 of the panel by rivets are all the same diameter. , the panel structure of the over-head door is characterized by being fixed using only one type of rivet of the same length.