JPS5860248U - Piezoelectric pickup for internal combustion engines - Google Patents
Piezoelectric pickup for internal combustion enginesInfo
- Publication number
- JPS5860248U JPS5860248U JP15591381U JP15591381U JPS5860248U JP S5860248 U JPS5860248 U JP S5860248U JP 15591381 U JP15591381 U JP 15591381U JP 15591381 U JP15591381 U JP 15591381U JP S5860248 U JPS5860248 U JP S5860248U
- Authority
- JP
- Japan
- Prior art keywords
- annular
- plate
- slit
- piezoelectric elements
- case
- 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
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本案に係る内燃機関用圧電ピックアップを示し
、Ａは平面図、ＢはＡ図イーイ線に沿う正断面図、第２
図は分解斜視図である。
１・・・金属ケース、１ａ・・・底面、１ｂ・・・貫通
孔、ＩＣ・・・スリット、１ｄ・・・リード線取付孔、
２，２′・・・圧電素子、３・・・電極板、５・・・緩
衝板、６・・・押え板、７・・・信号搬送用リード線、
１０・・・廻り止め部材、１０ａ・・・環状部、１０ｂ
・・・帯状屈曲部。Fig. 1 shows a piezoelectric pickup for an internal combustion engine according to the present invention, where A is a plan view, B is a front sectional view taken along line E in Fig. A, and Fig.
The figure is an exploded perspective view. 1...Metal case, 1a...Bottom surface, 1b...Through hole, IC...Slit, 1d...Lead wire attachment hole,
2, 2'... Piezoelectric element, 3... Electrode plate, 5... Buffer plate, 6... Holding plate, 7... Lead wire for signal transmission,
10... Rotating member, 10a... Annular part, 10b
...band-shaped bend.
Claims (1)
属ケース内に、環状電極板を挾んで対向する一対の環状
圧電素子及び該一方の圧電素子の上面に当接する環状の
緩衝板並びに該緩衝板の上面に当接する環状の押え板を
積層、保持すると共に前記ケースのスリットの下位に連
設した取付孔に一対の圧電素子の両極と電気的に接続す
る信号搬送用リード線の一端部を固定してなり、これを
機関ボルトに座金形態で挿着することによってシリンダ
ー内圧の変化に応じて電気信号を生じるよう構成してな
るものにおいて、上記金属ケース内の押え板と緩衝板と
の間に介在する環状部と該環状部からケースのスリット
を挿通して外方に突出する帯状屈曲部からなる廻り止め
部材を配設し、更に該廻り止め部材の帯状部によりリー
ド線を強固に抱持したことを特徴とする内燃機関用圧電
ピックアップ。 □In a concave metal case with a through hole in the center of the bottom and a slit on the side, a pair of annular piezoelectric elements facing each other with an annular electrode plate in between, an annular buffer plate abutting the top surface of one of the piezoelectric elements, and the buffer. An annular holding plate is laminated and held in contact with the upper surface of the plate, and one end of a signal carrying lead wire electrically connected to both poles of a pair of piezoelectric elements is inserted into a mounting hole connected below the slit of the case. between the presser plate and the buffer plate in the metal case, which are fixed and configured to generate an electric signal in response to changes in cylinder internal pressure by inserting this into an engine bolt in the form of a washer. A rotation preventing member is provided, which is composed of an annular portion interposed in the ring and a band-shaped bent portion extending outward from the annular portion through a slit in the case. A piezoelectric pickup for internal combustion engines that is characterized by: □
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15591381U JPS5860248U (en) | 1981-10-20 | 1981-10-20 | Piezoelectric pickup for internal combustion engines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15591381U JPS5860248U (en) | 1981-10-20 | 1981-10-20 | Piezoelectric pickup for internal combustion engines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5860248U true JPS5860248U (en) | 1983-04-23 |
Family
ID=29948476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15591381U Pending JPS5860248U (en) | 1981-10-20 | 1981-10-20 | Piezoelectric pickup for internal combustion engines |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5860248U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61102932U (en) * | 1984-12-13 | 1986-07-01 |
-
1981
- 1981-10-20 JP JP15591381U patent/JPS5860248U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61102932U (en) * | 1984-12-13 | 1986-07-01 |
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