Joining structure of sheet-metal components and image forming device

Abstract

In the combination structure of sheet metal parts in which a first sheet metal part 31 and a second sheet metal part 41 are combined by a screw member 50 with the respective connecting surfaces being opposed to each other, a first prepared hole 32 smaller in diameter than the screw member 50 is formed in the first sheet metal part 31, and a number of first small holes 33 smaller in diameter than the first prepared hole 32 are formed around the first prepared hole 32. When the first part 31 is connected to the second part 41 by the screw member 50, a strain force is generated around the first prepared hole 32 by screwing the screw member 50 to the first hole 32, and projections formed in the first small holes 33 are brought into contact with the second part 41 by the strain force.

Description

technical field

[0001] The present invention relates to a joining structure of sheet metal parts, in particular to a joining structure of sheet metal parts in which two sheet metal parts are joined together with screw parts in such a manner that their joining faces face each other, and a copier, printer, etc. having the joining structure image forming device. Background technique

[0002] Conventionally, in image forming apparatuses such as copiers, printers, and facsimiles, electronic equipment such as computers and communication equipment, and various electrical equipment, various parts and units have been assembled on metal structures forming their frames, and A structure in which an exterior body is assembled on the outer surface.

[0003] At present, metal structures, using joint parts such as screws or rivets, or welding, etc., combine multiple sheet metal parts in such a way that their joint faces face each other, and are also used as grounding means to solve electro...

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