To provide an erroneous installation preventive structure capable of increasing a combination of an installation body and an installation object part which enables prevention of erroneous installation by a simple constitution.
Any of first ribs 14A and 18A and second ribs 14B and 18B for preventing erroneous installation, projects from three places of predetermined parts of four places in total in outer peripheral side parts 12B and 16B of vehicle switches 12 and 16. To this, insertion parts 24 and 28 capable of inserting only the first ribs 14A and 18A and the second ribs 14B and 18B of the corresponding proper vehicle switches 12 and 16, are arranged in the installation object parts 22 and 26. The second ribs 14B and 18B are set longer in the projection length than the first ribs 14A and 18A, and the length in the direction orthogonal to the projection direction and orthogonal to the installation direction (the arrow A direction), is formed in a shape shorter than the first ribs 14A and 18A.
WASHINO TAKAYUKI
Kato Kazunori
Katsuichi Nishimoto
Hiroshi Fukuda
Next Patent: ROLLER TYPE ONE-WAY CLUTCH FOR MOTORCYCLE STARTER