JPH02120035U

JPH02120035U -

Info

Publication number: JPH02120035U
Application number: JP2851189U
Authority: JP
Priority date: 1989-03-15
Filing date: 1989-03-15
Publication date: 1990-09-27

Description

[Brief explanation of drawings]

第１図はこの考案の一実施例の要部を示し同図
ａは平面図、同図ｂは同図ａのＢ−Ｂ線に沿う平
面による断面図、同図ｃは正面図である。第２図
は第１図のものの作用を説明するための正断面図
、第３図は従来の振動検出器の正断面図、第４図
は第３図のものの平面図、第５図は第３図のもの
の一部であり、同図ａは平面図、同図ｂは同図ａ
のＢ−Ｂ線に沿う平面図による断面図、同図ｃは
正面図である。第６図は第５図のものの作用を説
明するための正断面図である。１……ブツシユ、１ｃ……円筒部、２……振動
−電気変換部、３……ケース、３ａ……収納空間
、３ｂ……コネクタ、４……金属板、５……圧電
素子、６……ターミナル、７……絶縁シート、８
……ウエイト、９……リングナツト、９ｂ……溝
、１１……出力端子、１３……ボルト挿通孔、２
４……締付金具。なお、各図中、同一符号は同一
又は相当部分を示す。 FIG. 1 shows a main part of an embodiment of this invention, FIG. 1A is a plan view, FIG. 1B is a sectional view taken along line B--B in FIG. 1A, and FIG. Figure 2 is a front sectional view for explaining the operation of the one in Figure 1, Figure 3 is a front sectional view of a conventional vibration detector, Figure 4 is a plan view of the one in Figure 3, and Figure 5 is a cross-sectional view of the conventional vibration detector. This is a part of Figure 3, where a is a plan view and b is a plan view.
A cross-sectional view taken along the line B-B of FIG. FIG. 6 is a front sectional view for explaining the operation of the device shown in FIG. DESCRIPTION OF SYMBOLS 1... Bush, 1c... Cylindrical part, 2... Vibration-electric conversion part, 3... Case, 3a... Storage space, 3b... Connector, 4... Metal plate, 5... Piezoelectric element, 6... ...Terminal, 7...Insulation sheet, 8
... Weight, 9 ... Ring nut, 9b ... Groove, 11 ... Output terminal, 13 ... Bolt insertion hole, 2
4...Tightening metal fittings. In each figure, the same reference numerals indicate the same or equivalent parts.

Claims

[Scope of Claim for Utility Model Registration] A bushing having a cylindrical part with a bolt insertion hole in the center, and a connector formed on the side part and connected to the outer circumferential side of the bushing to form a cylindrical storage space. a case including a piezoelectric element, a terminal, an insulating sheet, and a weight, and a cylindrical vibration-to-electrical converter unit that is incorporated into the storage space by a ring nut fastened to the cylindrical part; and the connector. A vibration detector comprising: an output terminal disposed on the ring nut; and a pair of grooves for tightening the ring nut provided in an axial direction of the ring nut.