JPS63157558U - - Google Patents
Info
- Publication number
- JPS63157558U JPS63157558U JP4884487U JP4884487U JPS63157558U JP S63157558 U JPS63157558 U JP S63157558U JP 4884487 U JP4884487 U JP 4884487U JP 4884487 U JP4884487 U JP 4884487U JP S63157558 U JPS63157558 U JP S63157558U
- Authority
- JP
- Japan
- Prior art keywords
- wall
- oil
- oil chamber
- rod portion
- plunger
- 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.)
- Granted
Links
- 239000003566 sealing material Substances 0.000 claims 2
Landscapes
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Description
第１図は本実施例にかかるフリーピストン型オ
ートテンシヨナの断面図、第２図はベルトが緩ん
だ状態の側面図、第３図はベルトが張つた状態の
側面図である。第４図は従来のフリーピストン型
オートテンシヨナの断面図である。
図中、１はボデー、２はプランジヤ、３はロー
ツド部、４はピストン、５は逆止弁を示す。
FIG. 1 is a sectional view of the free piston type autotensioner according to this embodiment, FIG. 2 is a side view of the belt in a relaxed state, and FIG. 3 is a side view of the belt in a tensioned state. FIG. 4 is a sectional view of a conventional free piston type autotensioner. In the figure, 1 is a body, 2 is a plunger, 3 is a rod portion, 4 is a piston, and 5 is a check valve.
Claims (1)
部とでイルが封入された第１油室を形成する一端
と、該ボデー内でオイルが封入された第２油室を
形成する他端とをもち該第２油室に向けて付勢さ
れ、該第１油室と該第２油室とを連通する油路を
もつプランジヤと、 該プランジヤと一体的に形成され、該ボデーか
ら突出したロツド部と、 該ボデーの内壁と該ロツドの外壁との間の空間
に摺動自在に挿入され、該ロツド部の外壁と第１
シール材を介してシールされ、該ボデーの内壁と
第２シール材を介してシールされるとともに、一
端が該第２油室を区画し、かつ該第２油室に向け
て付勢されたピストンと、 該プランジヤの該油路に配置され、該第２油室
から該第１油室へのオイルの流入はゆるすが、そ
の逆流はゆるさない逆止弁とで、構成され、 該ピストンの他端、該ボデーの内壁および該ロ
ツド部の外壁とで規定される空間に貯溜されたオ
イルをもち、 該ピストンの外壁と該ボデイの内壁との間、お
よび、該ピストンの内壁と該ロツド部の外壁との
間を、該オイルでシールしていることを特徴とす
るフリーピストン型オートテンシヨナ。 (2) ボデーは、その底部と反対側の開口を閉塞
する蓋部材をもつ実用新案登録請求の範囲第１項
記載のフリーピストン型オートテンシヨナ。[Claims for Utility Model Registration] (1) A bottomed body, one end that is slidably inserted into the body and forms a first oil chamber in which an oil is sealed with the bottom of the body; The other end forms a second oil chamber in which oil is sealed in the body, and the oil passage is biased toward the second oil chamber and communicates the first oil chamber and the second oil chamber. a plunger having a plunger; a rod portion integrally formed with the plunger and protruding from the body; and a rod portion slidably inserted into a space between an inner wall of the body and an outer wall of the rod portion, and a rod portion that is slidably inserted into a space between an inner wall of the body and an outer wall of the rod portion; 1st
a piston that is sealed via a sealing material, is sealed via an inner wall of the body and a second sealing material, has one end defining the second oil chamber, and is biased toward the second oil chamber; and a check valve disposed in the oil passage of the plunger, which allows oil to flow from the second oil chamber to the first oil chamber, but does not allow oil to flow backward; The oil is stored in a space defined by the end, the inner wall of the body, and the outer wall of the rod part, and the space between the outer wall of the piston and the inner wall of the body, and between the inner wall of the piston and the rod part. A free piston type autotensioner characterized in that the oil seals between the tensioner and the outer wall. (2) The free piston type autotensioner according to claim 1, wherein the body has a lid member that closes an opening on the opposite side from the bottom of the body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4884487U JPH0639158Y2 (en) | 1987-03-31 | 1987-03-31 | Free-piston type auto tensioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4884487U JPH0639158Y2 (en) | 1987-03-31 | 1987-03-31 | Free-piston type auto tensioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63157558U true JPS63157558U (en) | 1988-10-17 |
| JPH0639158Y2 JPH0639158Y2 (en) | 1994-10-12 |
Family
ID=30870756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4884487U Expired - Lifetime JPH0639158Y2 (en) | 1987-03-31 | 1987-03-31 | Free-piston type auto tensioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0639158Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011106497A (en) * | 2009-11-13 | 2011-06-02 | Nakagawa Giken:Kk | Tensioner device |
-
1987
- 1987-03-31 JP JP4884487U patent/JPH0639158Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011106497A (en) * | 2009-11-13 | 2011-06-02 | Nakagawa Giken:Kk | Tensioner device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0639158Y2 (en) | 1994-10-12 |
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