JPS6068182A - Production of bracket for attaching rainwater gutter - Google Patents

Abstract

PURPOSE:To increase the welding strength on both side parts of a recess provided to the central part of surfaces to be welded and to prevent failure in the case of driving a titled bracket by hammering the driving part by providing said recess to the central part of the surfaces to be welded, bringing said surfaces into contact with each other at the ends with the recess as a center and welding the surfaces. CONSTITUTION:A recess 23 is preliminarily provided to roughly the central part of the end face of a leg part 2 of a bracket for attaching a rainwater gutter which face is to be used as the surface to be welded. Both side parts 24, 24 of the recess 23 are brought into contact with the surface to be welded on top of the base end 31 of a driving part 3. Welding is thereafter started from the parts where the surfaces to be welded are held in contact with each other then instantaneously the welding is extended to between the recess 23 and the top surface at the base end 31 of the driving part 3 as well. The surfaces to be welded are finally welded to each other over the entire surface.

Description

[Detailed description of the invention] The present invention relates to a method of manufacturing a stacking fitting.

Conventionally, as a mounting bracket, for example, Utility Model Publication No. 55-301
As described in Publication No. 81, there is a type of gutter that has a driven part bent into an abbreviated shape and pointed at the tip, but when installing it to the eaves, tap the bent part of the driven part. Since it is necessary to hammer the concrete in place, there is a drawback that the bent part is easily deformed when it is hammered hard, making construction difficult.

Conventionally, for example, as described in Japanese Utility Model Application Publication No. 52-44426, all or part of the flat surface of the receiving plate provided on the lower side of the receiving part of the gutter holder has been arranged with respect to the inclination direction of the roof pole. It has been proposed that the plane be perpendicular to the plane and nails caulked perpendicular to the same plane, but the caulked part may be damaged due to impact when driving the nail or contact with other parts during transportation or storage. They also had the disadvantage of loosening and wobbling when a load was applied to the gutter holders.

Also, when butt welding the lower end surface of the lower leg of the receiver and the upper surface of the base of the driving part, if the center part of the lower end surface of the leg protrudes downward, the weld will be strong in that part, but the There was a problem that the welding in the surrounding area was likely to be insufficient, resulting in notches and damage.

The present invention has been made for the purpose of solving the conventional drawbacks as described above, and the gist thereof is to connect the lower end of the leg provided below the gutter receiver and the base end of the driving part. When butt welding, a concave portion is previously provided approximately in the center of at least one of the surfaces to be welded at the lower end of the leg and the base end of the driving portion, and the surfaces to be welded are centered around the concave portion. A method for manufacturing a mounting bracket, characterized in that the contact is brought into contact in the southern part of the two surfaces, welding is started from the ground floor of the surface to be welded after the contact, and then the contact is spread to the entire surface of the surfaces to be welded. Exists.

Hereinafter, the present invention will be described by way of example with reference to the drawings.

FIG. 1 shows a mounting bracket manufactured according to the present invention.

It is a single gutter receiving part, and there are side parts 12°12 on both edges of the bottom part 11.
is raised slightly outward. The upper end portion 21 of the prismatic leg portion 2 is attached to the lower surface of the substantially central portion of the gutter receiving portion 1 . The end face of the lower end part 22 of the leg part 2 is butt-welded to the upper surface of the base end part 31 of the driving part 3, which has a sharp tip of a prismatic column, so that the leg part 2 and the driving part 3 touch in an oval shape. has been done.

When butt welding, as shown in FIG.
are provided, and both sides 24.24 of the recess 23 are brought into contact with the upper surface of the base end 31 of the driving part 30 to be welded. After that, the surfaces to be welded are welded to each other. First, welding is started between the contact parts of the two, and then instant K-welding is also performed between the recess 23 and the upper surface of the base end 31 of the driving part 3. The welding process spreads, and eventually the entire surfaces to be welded are welded together.

Further, as shown in FIG. 3, the end surface 221' of the lower end 22' of the leg portion 2', which is to be the surface to be welded, is cut on two sides in a wedge shape.
The leg 2 is attached to the surface to be welded on the upper surface of the base end 31' of the driving part 3'.
A V-shaped recess 32' with a width slightly narrower than or almost the same as the diameter of the leg 2' and whose deepest part is deeper than the height of the cutout of the lower end 22' of the leg 2' is provided. part to leg part 2'
is brought into contact with the end surface 221' of the tip portion 22'. After that, welding is started first between the contact parts between the two parts, and then welding is instantaneously applied to the fourth part 32' and the lower end part 22' of the leg part 2'.
The welding also spreads between the end faces 221' of the weld, and finally the entire surfaces of the surfaces to be welded are welded.

It should be noted that, without being limited to the above-mentioned embodiment, four parts are provided in advance on at least one of the surfaces to be welded at the lower end of the leg and the base end of the driving part, and the surfaces to be welded are placed on both sides of the four parts. Any type of material may be used as long as the welding surfaces are brought into contact with each other, welding is started between the contacted parts, and then the welding is carried out over the entire surface of the surfaces to be welded.

The four parts may be groove-like recesses as in the illustrated embodiment, or they may be hollow-like four parts.

Moreover, for -1 spot welding, both @air welding and gas welding are employed.

The manufacturing method of the FiAWi mounting bracket of the present invention is configured as described above, so during butt welding, the surfaces to be welded at the lower end of the leg and the base end of the driving part are on both sides of the four parts. When the welding part is completely welded, the welded surfaces of the four parts are also pressed into contact and welded together, and the welded surfaces are welded together. The entire surface of the weld is welded, and the welding strength is especially strong on both sides of the four parts, so even if you hit the tip of the driving part for installing the gutter strongly, there will be no notch in the end of the welding part and damage. There is no risk of damage due to contact with other parts during transportation or storage.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an example of a gutter + J metal fitting manufactured by the method of the present invention, and FIGS. 2 and 3 are enlarged front views of essential parts showing different embodiments of the present invention. Explanation of symbols 1...Gutter receiving part, 2.2'...IL'l1 part, 3,3'...
... Drive part, 23, 23' four parts. Mototoshi Hishinuma, Representative of Suikagaku Kogyo Co., Ltd.

Claims (1)

[Claims] When butt welding the lower end of the leg provided below the gutter receiving part and the base end of the driving part, a small part of the surface to be welded of the lower end of the leg and the base end of the driving part is welded. One side is y
Four parts are prepared in advance in the center, the surfaces to be welded are brought into contact with each other on both sides of the four parts, welding is started from the earthen floor between the contacted surfaces, and then welding is performed between the surfaces to be welded. A method for manufacturing a mounting bracket characterized by spreading the effects over the entire surface.