JP4998715B2 - 自動変速機用ピストン - Google Patents
自動変速機用ピストン Download PDFInfo
- Publication number
- JP4998715B2 JP4998715B2 JP2007097920A JP2007097920A JP4998715B2 JP 4998715 B2 JP4998715 B2 JP 4998715B2 JP 2007097920 A JP2007097920 A JP 2007097920A JP 2007097920 A JP2007097920 A JP 2007097920A JP 4998715 B2 JP4998715 B2 JP 4998715B2
- Authority
- JP
- Japan
- Prior art keywords
- inner peripheral
- cylinder
- piston member
- piston
- seal
- 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.)
- Active
Links
- 230000005540 biological transmission Effects 0.000 title claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 77
- 239000003921 oil Substances 0.000 description 13
- VPWNQTHUCYMVMZ-UHFFFAOYSA-N 4,4'-sulfonyldiphenol Chemical compound C1=CC(O)=CC=C1S(=O)(=O)C1=CC=C(O)C=C1 VPWNQTHUCYMVMZ-UHFFFAOYSA-N 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
- F16D1/10—Quick-acting couplings in which the parts are connected by simply bringing them together axially
- F16D1/108—Quick-acting couplings in which the parts are connected by simply bringing them together axially having retaining means rotating with the coupling and acting by interengaging parts, i.e. positive coupling
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D25/00—Fluid-actuated clutches
- F16D25/06—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch
- F16D25/062—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces
- F16D25/063—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces with clutch members exclusively moving axially
- F16D25/0635—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces with clutch members exclusively moving axially with flat friction surfaces, e.g. discs
- F16D25/0638—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces with clutch members exclusively moving axially with flat friction surfaces, e.g. discs with more than two discs, e.g. multiple lamellae
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2300/00—Special features for couplings or clutches
- F16D2300/08—Details or arrangements of sealings not provided for in group F16D3/84
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
- Sealing With Elastic Sealing Lips (AREA)
Description
10 シリンダ
11,21 底部
12,22 外周筒部
13,23 内周筒部
14 装着溝
15 油供給口
16 Oリング
20 ピストン部材
24 フランジ部
25, 32,50 シール部
30 キャンセルプレート
31,35 端部
33 中央部
34 フランジ部
36 屈曲部
40 リターンスプリング
42 多板クラッチ
51 基部
52 シールリップ
53 嵌合部
54 内周面
55 スリット
A シリンダ底部側
B 反シリンダ底部側
M 加圧室
N 均衡油室
Claims (1)
- 有底円筒形状のシリンダ内部を軸方向に変位し前記シリンダとで加圧室を画成するピストン部材と、前記ピストン部材を挟んで前記シリンダの底部と対向し前記ピストン部材及び前記シリンダとで均衡油室を画成するキャンセルプレートと、前記加圧室が加圧されることにより押し下げられた前記ピストン部材を押し戻すように機能するリターンスプリングとを備えた自動変速機用ピストンにおいて、
前記シリンダの内周筒部に密接するシールリップと、前記内周筒部に嵌合する嵌合部とを備えるゴム状弾性体製の内周シール部が、前記キャンセルプレートの内周端部に配設され、
前記内周シール部の嵌合部の内周面にスリットが形設されていることを特徴とする自動変速機用ピストン。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007097920A JP4998715B2 (ja) | 2007-04-04 | 2007-04-04 | 自動変速機用ピストン |
US12/080,581 US7921765B2 (en) | 2007-04-04 | 2008-04-03 | Piston for automatic transmission |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007097920A JP4998715B2 (ja) | 2007-04-04 | 2007-04-04 | 自動変速機用ピストン |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2008256056A JP2008256056A (ja) | 2008-10-23 |
JP2008256056A5 JP2008256056A5 (ja) | 2011-05-26 |
JP4998715B2 true JP4998715B2 (ja) | 2012-08-15 |
Family
ID=39825821
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007097920A Active JP4998715B2 (ja) | 2007-04-04 | 2007-04-04 | 自動変速機用ピストン |
Country Status (2)
Country | Link |
---|---|
US (1) | US7921765B2 (ja) |
JP (1) | JP4998715B2 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010180972A (ja) * | 2009-02-06 | 2010-08-19 | Nok Corp | シール構造 |
KR20210039487A (ko) * | 2018-12-25 | 2021-04-09 | 엔오케이 가부시키가이샤 | 클러치 피스톤 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5172799A (en) * | 1991-02-08 | 1992-12-22 | Toyota Jidosha Kabushiki Kaisha | Centrifugal hydraulic cancel mechanism for the rotating clutch |
US6193042B1 (en) * | 1999-11-12 | 2001-02-27 | General Motors Corporation | Retaining ring structure in a rotary mechanism and a method of assembly |
JP2004060750A (ja) | 2002-07-29 | 2004-02-26 | Koyo Sealing Techno Co Ltd | 流体式変速機のクラッチ装置 |
US7040474B2 (en) * | 2004-03-30 | 2006-05-09 | Freudenberg-Nok General Partnership | Bonded clutch piston |
JP2006153168A (ja) * | 2004-11-30 | 2006-06-15 | Nok Corp | 密封装置 |
-
2007
- 2007-04-04 JP JP2007097920A patent/JP4998715B2/ja active Active
-
2008
- 2008-04-03 US US12/080,581 patent/US7921765B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US7921765B2 (en) | 2011-04-12 |
US20080245225A1 (en) | 2008-10-09 |
JP2008256056A (ja) | 2008-10-23 |
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