WO2015174329A1 - ボールジョイント用ダストカバー - Google Patents
ボールジョイント用ダストカバー Download PDFInfo
- Publication number
- WO2015174329A1 WO2015174329A1 PCT/JP2015/063255 JP2015063255W WO2015174329A1 WO 2015174329 A1 WO2015174329 A1 WO 2015174329A1 JP 2015063255 W JP2015063255 W JP 2015063255W WO 2015174329 A1 WO2015174329 A1 WO 2015174329A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- dust cover
- diameter opening
- ball joint
- peripheral surface
- ball
- Prior art date
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Classifications
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- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
- F16C11/0666—Sealing means between the socket and the inner member shaft
- F16C11/0671—Sealing means between the socket and the inner member shaft allowing operative relative movement of joint parts due to flexing of the sealing 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
- F16C41/04—Preventing damage to bearings during storage or transport thereof or when otherwise out of use
-
- 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
- F16J15/00—Sealings
- F16J15/50—Sealings between relatively-movable members, by means of a sealing without relatively-moving surfaces, e.g. fluid-tight sealings for transmitting motion through a wall
- F16J15/52—Sealings between relatively-movable members, by means of a sealing without relatively-moving surfaces, e.g. fluid-tight sealings for transmitting motion through a wall by means of sealing bellows or diaphragms
-
- 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
-
- 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
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
- F16C11/0619—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints the female part comprising a blind socket receiving the male part
- F16C11/0623—Construction or details of the socket member
- F16C11/0628—Construction or details of the socket member with linings
Definitions
- the present invention relates to a dust cover for a ball joint.
- the present invention also relates to a ball joint dust cover used for an automobile suspension device, a steering device, and the like.
- a dust cover for a ball joint shown in FIG. 7 is known as a ball joint to which a dust cover is attached for the purpose of dust-proofing and waterproofing the ball joint joint.
- This kind of ball joint dust cover 800 is of a type in which the inner periphery of one end large-diameter opening 500 is fitted to the socket outer peripheral surface. Therefore, even if the dust cover 800 is laminated, as shown in FIG. The parts 700 are not in contact with each other.
- FIG. 11 a method has been proposed in which a plurality of outer peripheral projections 910 are formed on the outer peripheral surface of the film part 700 of the dust cover 800 to avoid contact between the film parts 700.
- the dust cover 800 When accurately laminated, as shown in FIG. 12, it is possible to avoid contact between the film portions 700, but due to vibration during conveyance and inconvenience when laminating, the dust cover 800 has a structure as shown in FIG. Misalignment caused a problem that the film portions 700 contact each other.
- the present invention has been made in view of such problems, and in a dust cover of a type in which the outer periphery of one end large-diameter opening is fitted to the inner peripheral surface of the socket, even if the dust covers are stacked, the film portions are
- An object of the present invention is to provide a dust cover for a ball joint that does not come into contact with the ball joint.
- the dust cover for a ball joint has a ball head formed at one end of a ball stud held in a socket, and a shaft at the other end of the ball stud is fastened and fixed to a knuckle.
- a cylindrical one-end large-diameter opening embedded therein is fixedly held on the inner peripheral surface of the socket, and the other-end small-diameter opening is held on the shaft outer peripheral surface, and the other end of the one-end large-diameter opening
- a flange portion extending from the end portion on the small diameter opening side toward the ball stud side, and an inward end portion of the flange portion and a film portion made of a rubber-like elastic material connecting the other end small diameter opening portion.
- the ball joint dust cover includes an outer protrusion provided on the outer peripheral surface of the film portion and an inner protrusion provided on the inner peripheral surface of the joint portion of the flange portion and the film portion. cover When stacked, it said inner projection and the outer projection is characterized in that the abutment.
- the present invention has the following effects.
- the outer cover provided on the outer peripheral surface of the film part and the inner protrusion provided on the inner peripheral surface of the joint part of the flange part and the film part are provided. Since the outer protrusion and the inner protrusion are in contact with each other when the dust cover is stacked, even when the dust cover is stacked, it is possible to effectively avoid contact between the film portions.
- the outer protrusion is a plurality of protrusions arranged on the circumference and the inner protrusion is an annular protrusion, the film portion Even if the dust covers are stacked without adversely affecting the deformation of the film, it is possible to effectively avoid contact between the film portions.
- the inner protrusion is a plurality of protrusions arranged on the circumference and the outer protrusion is an annular protrusion, the molding is performed. It is easy, and even if the dust covers are stacked, it is possible to effectively avoid contact between the film portions.
- the longitudinal section of the dust cover for ball joints concerning the present invention.
- wearing of the dust cover shown in FIG. The top view before mounting
- stacked the dust cover of FIG. The figure which showed the dust cover which shows the other embodiment which concerns on this invention similarly to FIG.
- stacked the dust cover of FIG. The longitudinal cross-sectional view of the dust cover for other ball joints which concerns on a prior art.
- the ball joint dust cover 8 As shown in FIGS. 1, 2, 3, 4, and 5, the ball joint dust cover 8 according to the present invention has a ball head 2 formed at one end of a ball stud 1 in a socket 3.
- the shaft 4 at the other end of the ball stud 1 is held and used for a ball joint fastened and fixed to the knuckle 10.
- the dust cover 8 is formed on the inner peripheral surface of the annular groove 31 formed in the socket 3 by the cylindrical one-end large-diameter opening 5 in which the large-diameter opening-side metal reinforcing ring 81 having a substantially L-shaped cross section is embedded.
- the dust cover 8 includes a flange portion 51 that extends from the end of the other end of the large diameter opening 5 toward the ball stud 1 from the other end of the small diameter opening 6, and an inner end and the other end of the flange portion 51.
- a cylindrical portion that connects the small-diameter opening 6 and extends from the radially inner end of the flange portion 51 toward the small-diameter opening 6 at the other end, and a taper that extends from the cylindrical-shaped portion toward the small-diameter opening 6 at the other end. It has a basic structure including a film portion 7 made of a rubber elastic material (drum-shaped) made of a shape portion.
- outer protrusions 91 are formed that are equally spaced on the circumference. Furthermore, an annular inner protrusion 92 is provided on the inner peripheral surface of the joint portion 71 between the flange portion 51 and the membrane portion 7.
- the outer protrusions 91 are a plurality of protrusions arranged at equal intervals on the circumference, and the inner protrusions 92 are The design is a single annular projection. For this reason, there is no adverse effect on the deformation of the film part 7.
- the number of the outer protrusions 91 may be plural, but preferably 3 or more, and 4 to 8 are arranged in a uniform manner.
- the inner protrusions 92 are a plurality of protrusions arranged at equal intervals on the circumference, and the outer protrusions 91 are annular protrusions.
- a small diameter opening side reinforcing ring 82 having an L-shaped cross section is embedded in the other end small diameter opening 6. For this reason, the inner mold at the time of molding can be easily taken out and molding is easy.
- one of the outer protrusion 91 and the inner protrusion 92 is an annular protrusion, and the other is a plurality of protrusions arranged on the circumference at equal intervals. Also good.
- a metal material and a resin material are appropriately selected and used.
- the material of the dust cover 8 is appropriately selected from a rubbery elastic material such as chloroprene, and a thermoplastic elastomer such as a polyester-based elastomer and a thermoplastic polyurethane.
- the present invention is not limited to the best mode for carrying out the invention described above, and various other configurations can be adopted without departing from the gist of the present invention.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pivots And Pivotal Connections (AREA)
- Sealing Devices (AREA)
- Diaphragms And Bellows (AREA)
Abstract
Description
また、本発明は、自動車懸架装置、操舵装置等に使用されるボールジョイント用ダストカバーに関する。
請求項1記載の発明のボールジョイント用ダストカバーによれば、膜部の外周面上に設けた外側突起と、フランジ部と膜部の接合部の内周面上に設けた内側突起とを備え、ダストカバーを積層した際に、外側突起と内側突起が当接する構成としている為、ダストカバーを積層したとしても、膜部同士が接触する事を有効に回避出来る。
更に、請求項2記載の発明のボールジョイント用ダストカバーによれば、外側突起が円周上等配に配置した複数個の突起であり、内側突起が環状突起である構成とした為、膜部の変形に悪影響を与える事無く、ダストカバーを積層したとしても、膜部同士が接触する事を有効に回避出来る。
図1、図2、図3、図4及び図5に示される様に、本発明に係るボールジョイント用ダストカバー8は、ボールスタッド1の一端に形成された球頭部2がソケット3内に保持され、このボールスタッド1の他端の軸4はナックル10に締め付け固定されたボールジョイントに使用される。
また、このダストカバー8は、断面略L字形状の大径開口部側金属補強環81が埋設された円筒状の一端大径開口部5がソケット3に形成した環状溝31の内周面に固定保持され、他端小径開口部6が、軸4外周面上に保持されたナックル10の外周面に形成された溝11に保持されている。
更に、このダストカバー8は、一端大径開口部5の他端小径開口部6側端部からボールスタッド1側に向かって伸びるフランジ部51と、このフランジ部51の内方端部と他端小径開口部6を連結している、フランジ部51の径方向内端より他端小径開口部6に向かって伸びる円筒形状部と、この円筒形状部から他端小径開口部6に向かって伸びる先細り形状部よりなる(太鼓形状の)ゴム状弾性材製の膜部7とより成る基本構成を備えている。
更に、フランジ部51と膜部7の接合部71の内周面上には、環状の内側突起92が設けられている。
この為、ダストカバー6を積層したとしても、膜部7同士が接触する事を有効に回避出来る。
この為、膜部7の変形に悪影響を与える事が無い。
等配に配置された形が好ましい。
先に説明した実施態様と相違する点は、内側突起92が円周上等配に配置した複数個の突起であり、外側突起91が環状突起であることである。
この為、成形する際の内型が取り出しやすく、成形が容易である。
2 球頭部
3 ソケット
4 軸
5 一端大径開口部
6 他端小径開口部
7 膜部
8 ダストカバー
10 ナックル
31 環状溝
51 フランジ部
71 接合部
81 大径開口部側補強環
82 小径開口部側補強環
91 外側突起
92 内側突起
Claims (3)
- ボールスタッド(1)の一端に形成された球頭部(2)がソケット(3)内に保持され、前記ボールスタッド(1)の他端の軸(4)はナックル(10)に締め付け固定され、大径開口部側補強環(81)が埋設された円筒状の一端大径開口部(5)が前記ソケット(3)の内周面に固定保持され、他端小径開口部(6)が、前記軸(4)外周面上に保持され、前記一端大径開口部(5)の前記他端小径開口部(6)側端部から前記ボールスタッド(1)側に向かって伸びるフランジ部(51)と、前記フランジ部(51)の内方端部と前記他端小径開口部(6)を連結しているゴム状弾性材製の膜部(7)とより成るボールジョイント用ダストカバー(8)において、
前記膜部(7)の外周面上に設けた外側突起(91)と、前記フランジ部(51)と前記膜部(7)の接合部(71)の内周面上に設けた内側突起(92)とより成り、前記ボールジョイント用ダストカバー(8)を積層した際に、前記外側突起(91)と前記内側突起(92)が当接することを特徴とするボールジョイント用ダストカバー。 - 前記外側突起(91)が円周上等配に配置した複数個の突起であり、前記内側突起(92)が環状突起であることを特徴とする請求項1記載のボールジョイント用ダストカバー。
- 前記内側突起(92)が円周上等配に配置した複数個の突起であり、前記外側突起(91)が環状突起であることを特徴とする請求項1記載のボールジョイント用ダストカバー。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015540952A JP5888577B1 (ja) | 2014-05-13 | 2015-05-08 | ボールジョイント用ダストカバー |
US15/307,293 US10041530B2 (en) | 2014-05-13 | 2015-05-08 | Dust cover for ball joint |
CN201580024805.2A CN106460914B (zh) | 2014-05-13 | 2015-05-08 | 球窝接头用防尘罩 |
EP15793601.4A EP3144549B1 (en) | 2014-05-13 | 2015-05-08 | Dust cover for ball joint |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014099488 | 2014-05-13 | ||
JP2014-099488 | 2014-05-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015174329A1 true WO2015174329A1 (ja) | 2015-11-19 |
Family
ID=54479870
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2015/063255 WO2015174329A1 (ja) | 2014-05-13 | 2015-05-08 | ボールジョイント用ダストカバー |
Country Status (5)
Country | Link |
---|---|
US (1) | US10041530B2 (ja) |
EP (1) | EP3144549B1 (ja) |
JP (1) | JP5888577B1 (ja) |
CN (1) | CN106460914B (ja) |
WO (1) | WO2015174329A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11149784B2 (en) * | 2017-09-08 | 2021-10-19 | Nok Corporation | Dust cover |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020039706A1 (ja) | 2018-08-21 | 2020-02-27 | Nok株式会社 | ガスケット |
JP6628214B1 (ja) * | 2018-08-21 | 2020-01-08 | Nok株式会社 | ガスケット |
USD897270S1 (en) * | 2019-04-23 | 2020-09-29 | RB Distribution, Inc. | Dust boot |
USD896732S1 (en) * | 2019-04-23 | 2020-09-22 | RB Distribution, Inc. | Dust boot |
USD934778S1 (en) * | 2019-09-10 | 2021-11-02 | Federal-Mogul Motorparts Llc | Ball socket dust boot |
US11713783B2 (en) | 2021-07-23 | 2023-08-01 | Federal-Mogul Motorparts Llc | Grease boot for a ball joint |
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2015
- 2015-05-08 CN CN201580024805.2A patent/CN106460914B/zh active Active
- 2015-05-08 EP EP15793601.4A patent/EP3144549B1/en active Active
- 2015-05-08 WO PCT/JP2015/063255 patent/WO2015174329A1/ja active Application Filing
- 2015-05-08 US US15/307,293 patent/US10041530B2/en active Active
- 2015-05-08 JP JP2015540952A patent/JP5888577B1/ja active Active
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US3175834A (en) * | 1961-06-01 | 1965-03-30 | Chrysler Corp | Ball joint seal |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11149784B2 (en) * | 2017-09-08 | 2021-10-19 | Nok Corporation | Dust cover |
Also Published As
Publication number | Publication date |
---|---|
JP5888577B1 (ja) | 2016-03-22 |
EP3144549A1 (en) | 2017-03-22 |
CN106460914A (zh) | 2017-02-22 |
JPWO2015174329A1 (ja) | 2017-04-20 |
EP3144549B1 (en) | 2018-10-03 |
EP3144549A4 (en) | 2017-04-05 |
CN106460914B (zh) | 2018-01-23 |
US10041530B2 (en) | 2018-08-07 |
US20170051784A1 (en) | 2017-02-23 |
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