JPH02119549U - - Google Patents
Info
- Publication number
- JPH02119549U JPH02119549U JP7691689U JP7691689U JPH02119549U JP H02119549 U JPH02119549 U JP H02119549U JP 7691689 U JP7691689 U JP 7691689U JP 7691689 U JP7691689 U JP 7691689U JP H02119549 U JPH02119549 U JP H02119549U
- Authority
- JP
- Japan
- Prior art keywords
- piston
- rod
- pressure
- chamber
- cylinder
- 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
- 239000003921 oil Substances 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims description 4
- 239000010720 hydraulic oil Substances 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H2007/0802—Actuators for final output members
- F16H2007/0806—Compression coil springs
Landscapes
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Description
第１図は、この考案に係るオートテンシヨナの
一実施例を示す断面図、第２図および第３図は同
上の作動状態を示す断面図である。
１……シリンダ、２……閉塞端、３……オイル
シール、６……ロツド、７……ピストン、９……
圧力室、１０……リザーバ室、１１……通路、１
２……チエツクバルブ、１４……軸受、１８……
調圧スプリング。
FIG. 1 is a sectional view showing an embodiment of the autotensioner according to the invention, and FIGS. 2 and 3 are sectional views showing the same operating state. 1... Cylinder, 2... Closed end, 3... Oil seal, 6... Rod, 7... Piston, 9...
Pressure chamber, 10... Reservoir chamber, 11... Passage, 1
2...Check valve, 14...Bearing, 18...
Pressure adjustment spring.
補正 平２．４．３
実用新案登録請求の範囲を次のように補正する
。Amendment 2.4.3. The scope of claims for utility model registration is amended as follows.
【実用新案登録請求の範囲】
下部に閉塞端を有するシリンダの上部開口にロ
ツド挿入孔を有するオイルシールを取付け、その
オイルシールのロツド挿入孔に摺動自在に挿通し
たロツドの下端部に、シリンダの内径面と小間隙
を保つて摺動自在に組込まれたピストンを接続し
、そのピストンおよびロツドには、ピストンの下
方に形成された圧力室とピストンの上方に設けら
れたリザーバ室とを連通させる通路を形成し、ピ
ストンには、圧力室の圧力がリザーバ室の圧力よ
り低くなつたとき上記通路を開放するチエツクバ
ルブを取付け、シリンダ内には前記ロツド及びピ
ストンに突出性を付与する調圧スプリングを組込
み、前記圧力室とリバーザ室から成る作動室には
作動油を充填し、その作動油量を作動室の容積の
６０〜９０％としたオートテンシヨナ。[Scope of Claim for Utility Model Registration] An oil seal having a rod insertion hole is attached to the upper opening of a cylinder having a closed end at the bottom, and the lower end of the rod is slidably inserted into the rod insertion hole of the oil seal. A piston that is slidably assembled is connected to the inner diameter surface of the piston while maintaining a small gap, and the piston and rod communicate with a pressure chamber formed below the piston and a reservoir chamber provided above the piston. A check valve is attached to the piston to open the passage when the pressure in the pressure chamber becomes lower than the pressure in the reservoir chamber, and a pressure regulator is installed in the cylinder to provide protrusion to the rod and piston. An autotensioner incorporating a spring and filling a working chamber consisting of the pressure chamber and a reverser chamber with hydraulic oil, the amount of the hydraulic oil being 60 to 90% of the volume of the working chamber.
Claims (1)
ツド挿入孔を有するオイルシールを取付け、その
オイルシールのロツド挿入孔に摺動自在に挿通し
たロツドの下端部に、シリンダの内径面と小間隙
を保つて摺動自在に組込まれたピストンを接続し
、そのピストンおよびロツドには、ピストンの下
方に形成された圧力室とピストンの上方に設けら
れたリザーバ室とを連通させる通路を形成し、ピ
ストンには、圧力室の圧力がリザーバ室の圧力よ
り低くなつたとき上記通路を開放するチエツクバ
ルブを取付け、シリンダ内には前記ロツド及びピ
ストンに突出性を付与する調圧スプリングを組込
み、前記圧力室とリバーザ室から成る作動室には
作動油と空気を封入し、その空気量を作動室の容
積の１０〜４０％程度としたオートテンシヨナ。 An oil seal having a rod insertion hole is installed in the upper opening of a cylinder that has a closed end at the bottom, and a small gap is maintained between the lower end of the rod that is slidably inserted into the rod insertion hole of the oil seal and the inner diameter surface of the cylinder. A piston that is slidably incorporated in the piston is connected to the rod, and a passage is formed in the piston and the rod that communicates a pressure chamber formed below the piston with a reservoir chamber provided above the piston. A check valve is installed to open the passage when the pressure in the pressure chamber becomes lower than the pressure in the reservoir chamber, and a pressure regulating spring is installed in the cylinder to give protrusion to the rod and piston. An autotensioner in which hydraulic oil and air are sealed in a working chamber consisting of a reverser chamber, and the amount of air is approximately 10 to 40% of the volume of the working chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989076916U JP2503437Y2 (en) | 1989-06-28 | 1989-06-28 | Auto tensioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989076916U JP2503437Y2 (en) | 1989-06-28 | 1989-06-28 | Auto tensioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02119549U true JPH02119549U (en) | 1990-09-26 |
| JP2503437Y2 JP2503437Y2 (en) | 1996-07-03 |
Family
ID=31301922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989076916U Expired - Lifetime JP2503437Y2 (en) | 1989-06-28 | 1989-06-28 | Auto tensioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2503437Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0471846U (en) * | 1990-10-30 | 1992-06-25 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008138774A (en) * | 2006-12-01 | 2008-06-19 | Ntn Corp | Chain tensioner |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57202039U (en) * | 1981-06-19 | 1982-12-22 | ||
| JPS61294249A (en) * | 1985-06-20 | 1986-12-25 | Fuji Heavy Ind Ltd | Hydraulic adjuster device |
| JPS6240358U (en) * | 1985-08-30 | 1987-03-10 |
-
1989
- 1989-06-28 JP JP1989076916U patent/JP2503437Y2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57202039U (en) * | 1981-06-19 | 1982-12-22 | ||
| JPS61294249A (en) * | 1985-06-20 | 1986-12-25 | Fuji Heavy Ind Ltd | Hydraulic adjuster device |
| JPS6240358U (en) * | 1985-08-30 | 1987-03-10 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0471846U (en) * | 1990-10-30 | 1992-06-25 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2503437Y2 (en) | 1996-07-03 |
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