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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
Application number
JP7691689U
Other languages
Japanese (ja)
Other versions
JP2503437Y2 (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1989076916U priority Critical patent/JP2503437Y2/en
Publication of JPH02119549U publication Critical patent/JPH02119549U/ja
Application granted granted Critical
Publication of JP2503437Y2 publication Critical patent/JP2503437Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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

【図面の簡単な説明】[Brief explanation of drawings]

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)

【実用新案登録請求の範囲】[Scope of utility model registration request] 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.
JP1989076916U 1989-06-28 1989-06-28 Auto tensioner Expired - Lifetime JP2503437Y2 (en)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0471846U (en) * 1990-10-30 1992-06-25

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008138774A (en) * 2006-12-01 2008-06-19 Ntn Corp Chain tensioner

Citations (3)

* Cited by examiner, † Cited by third party
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

Patent Citations (3)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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