| 摘要 |
PURPOSE:To prevent the piezoelectric substance plate from slipping off due to its own weight, by holding the piezoelectric substance by the face contact in four positions between tongue parts of the slit and the piezoelectric substance plate. CONSTITUTION:In supporting materials 24, 25 longitudinal slits 31 and 32 for element insertion are formed in upper half parts, and elastically deformable tongue parts 28a, 28b, 29a and 29b are formed which are formed in one body together with supporting materials 24, 25 on and under slits 31 and 32. When element 26 is inserted, tongue parts 28a, 28b, 29a and 29b are bent outside in accordance with the form and the weight of element 27. At this time, element 27 is held by supporting materials 24 and 25 very well by face contacting between tongue parts 28a, 28b, 29a and 29b and side faces of element 27. |
