JPH02113133U - - Google Patents
Info
- Publication number
- JPH02113133U JPH02113133U JP2020489U JP2020489U JPH02113133U JP H02113133 U JPH02113133 U JP H02113133U JP 2020489 U JP2020489 U JP 2020489U JP 2020489 U JP2020489 U JP 2020489U JP H02113133 U JPH02113133 U JP H02113133U
- Authority
- JP
- Japan
- Prior art keywords
- cylindrical part
- piezoelectric element
- covered
- engaging portion
- knocking sensor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Description
第１図は本考案に係る一実施例を示すノツキン
グセンサの断面図、第２図はその平面図、第３図
は治具の斜視図、第４図はノツキングセンサの出
力特性図、第５図は従来のノツキングセンサを示
す断面図、第６図はその特性図である。
１…ハウジング、１ａ…円筒部、１ｂ…鍔部、
１ｄ…ねじ部、４…圧電素子、７…ウエイト、１
１…溝、１２…ナツト、１３…モールド樹脂、１
４…突条、１５…治具。
Fig. 1 is a sectional view of a knocking sensor showing an embodiment of the present invention, Fig. 2 is a plan view thereof, Fig. 3 is a perspective view of a jig, Fig. 4 is an output characteristic diagram of the knocking sensor, FIG. 5 is a sectional view showing a conventional knocking sensor, and FIG. 6 is a characteristic diagram thereof. 1...housing, 1a...cylindrical part, 1b...flange part,
1d...screw part, 4...piezoelectric element, 7...weight, 1
1...Groove, 12...Nut, 13...Mold resin, 1
4... Projection, 15... Jig.
Claims (1)
の円筒部外周に環状の圧電素子と環状のウエイト
とを嵌挿し、円筒部外周のねじ部に螺合される締
付け部材により締付け固定し、圧電素子、ウエイ
ト及び締付け部材の周囲をモールド樹脂により被
覆してなるノツキングセンサにおいて、 前記締付け部材の外側の端面に回動操作用の係
合部を形成すると共に、該係合部を有する端面を
モールド樹脂により被覆することなく露出させた
ことを特徴とするノツキングセンサ。[Claims for Utility Model Registration] A ring-shaped piezoelectric element and an annular weight are fitted onto the outer periphery of the cylindrical part of a housing consisting of a cylindrical part and a flange at one end thereof, and tightened by screwing into a threaded part on the outer periphery of the cylindrical part. In a knocking sensor which is fixed by a member and whose periphery is covered with a molded resin, a piezoelectric element, a weight, and a clamping member, an engaging portion for rotational operation is formed on the outer end surface of the clamping member, and A knocking sensor characterized in that an end face having an engaging portion is exposed without being covered with mold resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2020489U JPH02113133U (en) | 1989-02-27 | 1989-02-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2020489U JPH02113133U (en) | 1989-02-27 | 1989-02-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02113133U true JPH02113133U (en) | 1990-09-11 |
Family
ID=31236366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2020489U Pending JPH02113133U (en) | 1989-02-27 | 1989-02-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02113133U (en) |
-
1989
- 1989-02-27 JP JP2020489U patent/JPH02113133U/ja active Pending
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