| 摘要 |
PURPOSE:To improve positional accuracy of an antenna by forming a section to be fitted in a groove of vein at the upper section of antenna groove while providing step sections to be contacted against the side of vein at both sides of said section thereby reducing inclination of antenna against the vein. CONSTITUTION:A groove 12a is made in a vein 12. A groove 16a to be inserted into a groove 12a of vein 12 is formed in an antenna 16 while a section to be inserted into the groove 12a is formed at the upper portion of said groove 16a and step sections 16c, 16c to be contacted against the side of said vein 12 are formed at both sides of said section 16b. When inserting the groove 16a of antenna 16 into the groove 12a of vein 12, said section 16b is fitted into the groove 12a to contact the step sections 16c, 16c against the side of vein 12 thereby the step sections 16c, 16c will function as stoppers for the vein 12 to limit lateral inclination of antenna 16. |
