JPH04118702U - Reinforcement fixing mechanism - Google Patents

Abstract

(57) [Summary] [Purpose] To eliminate welding distortion on the panel surface and improve the rigidity and strength of the panel surface when fixing reinforcing materials to steel plates such as the panel surface of switchboards. [Structure] A plurality of studs 2 are stud-welded to reinforced parts of the board surface 1. Then, the studs 2 are inserted into the bolt holes 5 of the reinforcing material 3 through the adhesive 4 between the reinforcing material 3 and the board surface 1, and the reinforcing material 3 is tightened by screwing the nuts 6 screwed into each stud 2. Tighten and fix to panel surface 1. [Effects] High rigidity and fixing strength can be obtained by the combined use of nut tightening of the reinforcing material using studs and bonding using adhesive. In addition, because stud welding is instantaneous welding, there is no distortion in the steel plate (board surface, etc.).

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to a fixing mechanism for reinforcing materials such as the panel surface of a switchboard and other doors.

0002

[Conventional technology]

Despite the relatively large size of the panel surface of the switchboard, there are meters, instruments, and tables on the surface. In order to attach various parts such as indicator lights, it is often necessary to drill many holes, which requires cutting the board surface. The strength and rigidity of the board decreases, causing problems due to the effects of vibration, and in order to compensate for this, the board surface A reinforcing material was welded to the back side of the In addition, in cases where there are many non-perforated doors, the materials used can be reduced to reduce material costs and weight. The thickness of the board is made as thin as possible, and the strength and rigidity are supplemented with reinforcing agents. The reinforcement is L-shaped or ] The reinforcing material bent into a shape is welded to the panel surface and the back side of the door. Thermal distortion may occur, causing the surface of the board to become significantly curved or the welded area to become locally uneven. In extreme cases, there were many problems such as holes forming. Due to the nature of the surface of the switchboard as a control device, the appearance of doors etc. is generally required. Because the surface is curved or uneven, it spoils the aesthetic appearance, so conventionally, the surface was pounded to remove distortion. , apply putty during grinder finishing and painting process, putty polishing, etc. to make the surface as smooth as possible. Although the finish was smooth, this kind of work falls under 3K in terms of the working environment, and it is not possible to finish it evenly. There were many difficulties in securing workers as it required considerable skill to carry out the work. . On the other hand, in the case of a putty finish, the painted surface is fragile, so impact force is applied to that part. In some cases, there were quality problems such as scratches and peeling. In addition to conventional welding, reinforcing materials can be fixed using only bolts and nuts; In the case of a nut, the tightening pressure is only on the tightening part, so it is locally integrated, but the entire reinforcing material does not form a single rigid body and has little effect. Also, adhesive strength alone cannot provide the same adhesive strength as welding. It was not adopted due to concerns about peeling off due to external force.

0003

[Problem that the idea aims to solve] The problem we are trying to solve is to maintain welding strength and eliminate welding distortion. Tighten the reinforcing material with a nut using the stud welded with the stud welded. Adhesive (adhesive tape) increases the adhesion of the board, effectively increasing the rigidity and strength of the board surface. It is something that

0004

[Means to solve the problem]

The present invention is an attempt to solve the above problems.When reinforcing steel plates, A nut is screwed onto the stud welded to the steel plate via an adhesive between the steel plate and the stud. , a reinforcing material fixing mechanism that tightens and fixes the reinforcing material.

[0005]

【Example】

1 to 4 show one embodiment of the present invention, in which a plurality of studs 2 are stud-welded to the reinforced portions of the board surface 1 using CA PACITOR DISCHARGE STUD WELDING, etc., while an adhesive (adhesive tape) 4 is attached to the board surface side of the reinforcing material 3. Paste the required length of reinforcing material, pass the stud 2 through the bolt hole 5 of the reinforcing material, and tighten the reinforcing material 3 to the board surface 1 with nuts 6. FIG. 5 is a rear view of a conventional board, and 7 is a welding beat, 8 is a meter hole, and 9 is a mounting hole for a meter, etc. The welding strength of the stud welding in this example is as high as 865 kg/cm ² , and sufficient tightening force can be obtained by welding several studs. In this example, Y-4950 manufactured by Sumitomo 3M Co., Ltd. is used as an adhesive (adhesive tape), and an adhesive force of about 40 kg/cm ² can be secured. In addition, although this invention has been described with respect to a switchboard panel, other doors, etc., it goes without saying that it can be applied to reinforcing other steel plates.

[0006]

[Effect]

According to the present invention, by stud welding the stud 2, the plate surface 1 and the stud 2 is instantaneously and shallowly welded, so there is no thermal distortion on the board surface, and the welding surface is smooth. is retained. On the other hand, simply tightening the nuts on the reinforcing material using studs will cause the board surface to twist. , the frictional resistance of the tightening surface is low against vibrations, etc., and the contact area is only around the stud. If it is not possible to obtain higher rigidity, apply adhesive (adhesive tape) between the board surface and the reinforcing material. By tightening the nut to the stud, the entire reinforcement material will be tightly attached, and both will have a synergistic effect. It shows its effectiveness and provides high rigidity.

[0007]

[Effect of the idea]

According to the present invention, the following effects are achieved. 1) Use a combination of nut tightening of reinforcing material with studs and adhesive (adhesive tape) This synergistic effect results in high rigidity. 2) Instant welding using stud welding causes no distortion to the steel plate (panel surface, door, etc.) . 3) Since there are no irregularities or distortions caused by welding, subsequent distortion removal, grinder finishing, It eliminates the need for harsh work such as putty application, putty sharpening, and skilled workers, making it easy for anyone to use. Comparison: Easy to work with. 4) Problems such as scratches and peeling due to impact force on the putty surface are eliminated, and the quality is improved. Stabilize.

[Brief explanation of drawings]

[Figure 1] Plan view of the present invention

[Figure 2] A-A sectional view in Figure 1

[Fig. 3] Plan view of another embodiment of the present invention

[Figure 4] BB sectional view in Figure 3

[Fig. 5] Rear perspective view of the board of the conventional embodiment

[Explanation of symbols]

1 Board surface 2 studs 3 Reinforcement material 4 Adhesive (adhesive tape) 5 Bolt hole 6 nuts 7 Welding beat 8 meter hole 9 Instrument mounting hole

Claims (2)

[Scope of utility model registration request] 1. A reinforcing material fixing mechanism for reinforcing a steel plate, in which the reinforcing material is tightened and fixed by threading a nut onto a stud stud welded to the steel plate through an adhesive between the reinforcing material and the steel plate. 2. The reinforcing material fixing mechanism according to claim 1, wherein a double-sided adhesive tape is used as the adhesive.