JPH03117144U - - Google Patents
Info
- Publication number
- JPH03117144U JPH03117144U JP2507990U JP2507990U JPH03117144U JP H03117144 U JPH03117144 U JP H03117144U JP 2507990 U JP2507990 U JP 2507990U JP 2507990 U JP2507990 U JP 2507990U JP H03117144 U JPH03117144 U JP H03117144U
- Authority
- JP
- Japan
- Prior art keywords
- diaphragm
- piston
- cylinder
- chamber
- annular groove
- 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
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
Landscapes
- Diaphragms And Bellows (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Description
図面は本考案の実施例を示し、第１図はテンシ
ヨナの長手方向断面図、第２図はダイヤフラム押
えの長手方向断面図、第３図はダイヤフラムの長
手方向断面図、第４図は第２図のダイヤフラム押
えと第３図のダイヤフラムとを組み合わせたもの
の長手方向断面図である。
１０……ダイヤフラム密封式テンシヨナ、１１
……ダイヤフラム、１３……ダイヤフラム押え、
１４……突起、１５……当接面、１６……環状溝
、２０……シリンダ、２１……ピストンロツド、
２３……圧縮ばね、２４……ピストン、４０……
拡径段部、４２……拡径段部、４６……外縁部、
４７……シールリツプ。
The drawings show an embodiment of the present invention, in which FIG. 1 is a longitudinal sectional view of the tensioner, FIG. 2 is a longitudinal sectional view of the diaphragm retainer, FIG. 3 is a longitudinal sectional view of the diaphragm, and FIG. FIG. 4 is a longitudinal sectional view of a combination of the diaphragm presser shown in the figure and the diaphragm shown in FIG. 3; 10...Diaphragm sealed tensioner, 11
...Diaphragm, 13...Diaphragm presser,
14... Protrusion, 15... Contact surface, 16... Annular groove, 20... Cylinder, 21... Piston rod,
23...compression spring, 24...piston, 40...
Expanded diameter step portion, 42... Expanded diameter step portion, 46... Outer edge portion,
47... Seal lip.
Claims (1)
遊嵌され前記シリンダをピストン前室と後室に分
けるピストンにピストンロツドが固定され、該ロ
ツドにばねにより突出力が付与され、前記ピスト
ン前室とピストン後室とを連通する油路にピスト
ン後室への油の流入を許す逆止弁が設けられ、前
記ピストン前室が前記シリンダと前記ピストンロ
ツドに各々端部を固定したダイヤフラムによつて
密封され、前記突出力によりベルトに張力を加え
るダイヤフラム密封式テンシヨナにおいて、 前記ダイヤフラムのシリンダ側の端部に複数の
シールリツプを設け、前記シリンダの内周面に形
成された拡径段部の長手方向に直角な面に前記シ
ールリツプをダイヤフラム押えにより圧接させた
ことを特徴とする、 ダイヤフラム密封式テンヨナ。 (2) 前記ダイヤフラム押えの外周に環状溝を形
成し、前記ダイヤフラムに前記環状溝に適合する
形状の外縁部を形成して、前記環状溝に前記外縁
部を嵌め合わせた、請求項１のダイヤフラム密封
式テンシヨナ。[Claims for Utility Model Registration] (1) A piston rod is fixed to a piston that is loosely fitted into an oil-filled cylinder with a small gap and divides the cylinder into a front chamber and a rear chamber, and is protruded from the rod by a spring. When a force is applied, a check valve is provided in an oil passage communicating between the front piston chamber and the piston rear chamber to allow oil to flow into the piston rear chamber, and the piston front chamber is connected to the cylinder and the piston rod at respective ends. In the diaphragm-sealed tensioner, the diaphragm is sealed by a diaphragm having a fixed part and applies tension to the belt by the ejecting force, a plurality of seal lips are provided at the cylinder side end of the diaphragm, and a plurality of seal lips are formed on the inner circumferential surface of the cylinder. A diaphragm-sealed tensioner characterized in that the seal lip is pressed into contact with a surface perpendicular to the longitudinal direction of the enlarged-diameter stepped portion by a diaphragm holder. (2) The diaphragm according to claim 1, wherein an annular groove is formed on the outer periphery of the diaphragm retainer, an outer edge portion having a shape that fits the annular groove is formed on the diaphragm, and the outer edge portion is fitted into the annular groove. Sealed tensioner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2507990U JPH03117144U (en) | 1990-03-15 | 1990-03-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2507990U JPH03117144U (en) | 1990-03-15 | 1990-03-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03117144U true JPH03117144U (en) | 1991-12-04 |
Family
ID=31528021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2507990U Pending JPH03117144U (en) | 1990-03-15 | 1990-03-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03117144U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008133701A (en) * | 2006-11-29 | 2008-06-12 | Kubota Matsushitadenko Exterior Works Ltd | Outer wall structure |
-
1990
- 1990-03-15 JP JP2507990U patent/JPH03117144U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008133701A (en) * | 2006-11-29 | 2008-06-12 | Kubota Matsushitadenko Exterior Works Ltd | Outer wall structure |
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