| 摘要 |
PROBLEM TO BE SOLVED: To facilitate the execution of a security sensor which is fitted by being inserted into between T-shaped rod materials from above and to prevent a detection area from easily shifting by providing metal fittings which project elastically on both the sides of the security sensor. SOLUTION: Metal fittings 11 on the top surface of a main body 10 are a sheet metal processed body of an elastic stainless steel material, etc., and fitted along the diameter of the main body 10 by using screws 14 and 14. Both end parts projecting from the top surface of the main body 10 have oblique side parts 11a and 11a which are bent downward almost in a truncated chevron shape and their tips have contact parts 11b and 11b corresponding to guide parts which are normally bent facing nearly vertically. Both the end parts of the metal fittings 11 are elastic as shown by the arrow X. The oblique side parts 11a and 11a are pressed inward at the time of fitting and then the tips of the contact parts 11b and 11b become narrow, thereby facilitating insertion between the center pieces 20 and 20 of the T-shaped rod materials 2 and 2.
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