JPH0485245U - - Google Patents
Info
- Publication number
- JPH0485245U JPH0485245U JP12838790U JP12838790U JPH0485245U JP H0485245 U JPH0485245 U JP H0485245U JP 12838790 U JP12838790 U JP 12838790U JP 12838790 U JP12838790 U JP 12838790U JP H0485245 U JPH0485245 U JP H0485245U
- Authority
- JP
- Japan
- Prior art keywords
- casing body
- prevention member
- rotation prevention
- pressure sensor
- engagement portion
- 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
- 230000002265 prevention Effects 0.000 claims 4
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000002485 combustion reaction Methods 0.000 description 3
Description
第１図および第２図は本考案の実施例を示し、
第１図は本実施例による燃焼圧センサの縦断面図
、第２図は第１図中の矢示−方向断面図、第
３図および第４図は先行技術を示し、第３図はエ
ンジン本体の要部縦断面図、第４図は先行技術に
よる燃焼圧センサの縦断面図である。
１２……燃焼圧センサ、１４……ダイヤフラム
、２０……圧電体、２２……止めねじ（押付けね
じ）、３１……ケーシング本体、３１Ｃ……係合
溝（係止部）、３２……上側プレート（廻止め部
材）、３２Ａ……係合突起（係合部）。
1 and 2 show an embodiment of the present invention,
FIG. 1 is a longitudinal sectional view of the combustion pressure sensor according to this embodiment, FIG. 2 is a sectional view in the direction of the arrow in FIG. 1, FIGS. 3 and 4 show the prior art, and FIG. FIG. 4 is a vertical cross-sectional view of a main part of the main body, and FIG. 4 is a vertical cross-sectional view of a combustion pressure sensor according to the prior art. 12... Combustion pressure sensor, 14... Diaphragm, 20... Piezoelectric body, 22... Set screw (pressing screw), 31... Casing body, 31C... Engagement groove (locking part), 32... Upper side Plate (rotation stopper member), 32A...engaging protrusion (engaging portion).
Claims (1)
に設けられ、該ケーシング本体の一端側に外部か
ら作用する圧力に応じて変位するダイヤフラムと
、前記ケーシング本体内に設けられ、該ダイヤフ
ラムの変位を該圧力に応じた電圧信号として出力
する圧電体と、前記ケーシング本体内に螺着され
、該圧電体に初期荷重を加える押付けねじとから
なる圧力センサにおいて、前記圧電体と押付けね
じとの間には、外周側に係合部が形成された廻止
め部材を設け、前記ケーシング本体の内周側には
該廻止め部材の係合部と係合し、該廻止め部材が
前記ケーシング本体内で回転するのを規制する係
止部を設けたことを特徴とする圧力センサ。 a casing body; a diaphragm provided at one end of the casing body that is displaced in response to pressure acting on the one end of the casing body from the outside; In a pressure sensor comprising a piezoelectric body that outputs a corresponding voltage signal and a pressing screw that is screwed into the casing body and applies an initial load to the piezoelectric body, there is an outer periphery between the piezoelectric body and the pressing screw. A rotation prevention member having an engagement portion formed on the side thereof is provided, and the rotation prevention member is engaged with the engagement portion of the rotation prevention member on the inner peripheral side of the casing body, and the rotation prevention member is prevented from rotating within the casing body. A pressure sensor characterized by being provided with a locking part that regulates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12838790U JPH0485245U (en) | 1990-11-30 | 1990-11-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12838790U JPH0485245U (en) | 1990-11-30 | 1990-11-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0485245U true JPH0485245U (en) | 1992-07-24 |
Family
ID=31875848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12838790U Pending JPH0485245U (en) | 1990-11-30 | 1990-11-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0485245U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008157896A (en) * | 2006-12-26 | 2008-07-10 | National Institute Of Advanced Industrial & Technology | Piezoelectric sensor |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6089725A (en) * | 1983-10-24 | 1985-05-20 | Matsushita Seiko Co Ltd | Pressure sensor device |
-
1990
- 1990-11-30 JP JP12838790U patent/JPH0485245U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6089725A (en) * | 1983-10-24 | 1985-05-20 | Matsushita Seiko Co Ltd | Pressure sensor device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008157896A (en) * | 2006-12-26 | 2008-07-10 | National Institute Of Advanced Industrial & Technology | Piezoelectric sensor |