JP5888564B2 - 倍力装置の入力杆および倍力装置の入力杆の製造方法 - Google Patents
倍力装置の入力杆および倍力装置の入力杆の製造方法 Download PDFInfo
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- JP5888564B2 JP5888564B2 JP2013238303A JP2013238303A JP5888564B2 JP 5888564 B2 JP5888564 B2 JP 5888564B2 JP 2013238303 A JP2013238303 A JP 2013238303A JP 2013238303 A JP2013238303 A JP 2013238303A JP 5888564 B2 JP5888564 B2 JP 5888564B2
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- Prior art keywords
- input rod
- diameter shaft
- input
- booster
- shaft portion
- 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.)
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- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 239000011324 bead Substances 0.000 claims description 17
- 230000002093 peripheral effect Effects 0.000 claims description 15
- 238000005096 rolling process Methods 0.000 claims description 15
- 239000011265 semifinished product Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 5
- 238000005242 forging Methods 0.000 claims description 3
- 235000013372 meat Nutrition 0.000 claims description 2
- 125000004122 cyclic group Chemical group 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
- B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
- B60T11/16—Master control, e.g. master cylinders
- B60T11/18—Connection thereof to initiating means
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J3/00—Diaphragms; Bellows; Bellows pistons
- F16J3/04—Bellows
- F16J3/041—Non-metallic bellows
- F16J3/042—Fastening details
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Braking Systems And Boosters (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
Description
前端部が倍力装置の入力ピストンに連接され,後端部に,ブレーキペダルを連結するヨークが取り付けられる倍力装置の入力杆であって,この前記入力杆の中間部外周面には,前記入力杆の前部を覆うブーツの後端ビード部を締代をもって装着する環状のブーツ装着溝を形成したものにおいて,前記入力杆の外周面の軸方向に並ぶ2箇所に断面三角形の環状の谷部と、前記谷部間に断面三角形の隆起した山部を備え、前記山部が前記ブーツ装着溝の後部の側壁となることを第1の特徴とする。尚,前記入力ピストンは,後述する本発明の実施形態中の弁ピストン18に対応する。
18・・・入力ピストン(弁ピストン)
20・・・入力杆
32・・・ブーツ
32a・・後端ビード部
44,45・・谷部
46・・・山部(ブーツ装着溝の後部の側壁)
47・・・ブーツ装着溝
50・・・雄ねじ
53・・・ヨーク
Claims (3)
- 前端部が倍力装置(B)の入力ピストン(18)に連接され,後端部に,ブレーキペダル(P)を連結するヨーク(53)が取り付けられる倍力装置(B)の入力杆(20)であって,この前記入力杆(20)の中間部外周面には,前記入力杆(20)の前部を覆うブーツ(32)の後端ビード部(32a)を締代をもって装着する環状のブーツ装着溝(47)を形成したものにおいて,
前記入力杆(20)の外周面の軸方向に並ぶ2箇所に断面三角形の環状の谷部(44,45)と、前記谷部(44,45)間に断面三角形の隆起した山部(46)を備え、前記山部(46)が前記ブーツ装着溝(47)の後部の側壁となることを特徴とする倍力装置の入力杆。 - 請求項1記載の倍力装置の入力杆において,
前記ブーツ装着溝(47)への前記後端ビード部(32a)の装着状態では,該後端ビード部(32a)が前側の前記谷部(44)に食い込むようにしたことを特徴とする倍力装置の入力杆。 - 倍力装置(B)に用いられる入力杆(20)の製造方法において、丸棒を鍛造することにより、ボールジョイント(34)、第1小径軸部(36)、テーパ部(37)、大径軸部(39)、フランジ(35)、第1中径軸部(40)、第2中径軸部(42)および第2小径軸部(43)よりなる入力杆半成品(020)を形成し、転造により第2中径軸部(42)の後部外周面に軸方向にならぶ断面三角形で環状の一対の谷部(44,45)を形成しながら両谷部(44,45)の肉を、両谷部(44,45)間に寄せることにより両谷部(44,45)間に断面三角形で環状の山部(46)を隆起させ、第二小径軸部(43)に同一工程の転造によりセレーション(49)および雄ねじ(50)を形成することを特徴とする倍力装置の入力杆の製造方法。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013238303A JP5888564B2 (ja) | 2013-11-18 | 2013-11-18 | 倍力装置の入力杆および倍力装置の入力杆の製造方法 |
US14/541,898 US9731692B2 (en) | 2013-11-18 | 2014-11-14 | Brake booster input rod |
Applications Claiming Priority (1)
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---|---|---|---|
JP2013238303A JP5888564B2 (ja) | 2013-11-18 | 2013-11-18 | 倍力装置の入力杆および倍力装置の入力杆の製造方法 |
Publications (2)
Publication Number | Publication Date |
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JP2015098231A JP2015098231A (ja) | 2015-05-28 |
JP5888564B2 true JP5888564B2 (ja) | 2016-03-22 |
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JP2013238303A Active JP5888564B2 (ja) | 2013-11-18 | 2013-11-18 | 倍力装置の入力杆および倍力装置の入力杆の製造方法 |
Country Status (2)
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US (1) | US9731692B2 (ja) |
JP (1) | JP5888564B2 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102020109452A1 (de) * | 2020-04-03 | 2021-10-07 | Zf Active Safety Gmbh | Elektrisch ansteuerbare Betätigungseinheit für eine Kraftfahrzeugbremse, Bremskraftverstärker mit einer solchen elektrisch ansteuerbaren Betätigungseinheit und Kraftfahrzeug-Bremsanlage mit einem solchen Bremskraftverstärker |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5319465B2 (ja) * | 1974-01-28 | 1978-06-21 | ||
US5711202A (en) * | 1995-07-27 | 1998-01-27 | Aisin Seiki Kabushiki Kaisha | Vacuum servo unit for a vehicle braking system |
JPH0947833A (ja) * | 1995-08-08 | 1997-02-18 | Tsuda Kogyo Kk | 管継手ボルトの製造方法 |
JPH11152029A (ja) * | 1997-11-25 | 1999-06-08 | Aisin Seiki Co Ltd | 負圧式倍力装置 |
JP4474316B2 (ja) * | 2005-03-31 | 2010-06-02 | 日信工業株式会社 | 車両用ブレーキ装置 |
JP4539854B2 (ja) * | 2005-06-28 | 2010-09-08 | 株式会社アドヴィックス | 負圧式倍力装置 |
JP5363301B2 (ja) * | 2009-12-24 | 2013-12-11 | 日信工業株式会社 | 負圧ブースタ |
-
2013
- 2013-11-18 JP JP2013238303A patent/JP5888564B2/ja active Active
-
2014
- 2014-11-14 US US14/541,898 patent/US9731692B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
US20150135945A1 (en) | 2015-05-21 |
JP2015098231A (ja) | 2015-05-28 |
US9731692B2 (en) | 2017-08-15 |
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