WO2015037272A1 - ダストカバー - Google Patents
ダストカバー Download PDFInfo
- Publication number
- WO2015037272A1 WO2015037272A1 PCT/JP2014/062590 JP2014062590W WO2015037272A1 WO 2015037272 A1 WO2015037272 A1 WO 2015037272A1 JP 2014062590 W JP2014062590 W JP 2014062590W WO 2015037272 A1 WO2015037272 A1 WO 2015037272A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- dust cover
- outer peripheral
- inclined wall
- inner peripheral
- peripheral portion
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J3/00—Diaphragms; Bellows; Bellows pistons
- F16J3/04—Bellows
- F16J3/041—Non-metallic 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
- F16J3/043—Non-metallic bellows with particular means for limiting wear
-
- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/38—Covers for protection or appearance
Definitions
- the present invention relates to a dust cover that covers, for example, a piston rod of a shock absorber that constitutes a suspension mechanism of an automobile to prevent adhesion of dust or water.
- dust covers that prevent adhesion of foreign matter such as dust and water have been known.
- a dust cover that is externally attached to a shock absorber and covers the periphery of the protruding portion of the piston rod can prevent foreign matter from adhering to the piston rod. It is used to prevent adhesion.
- the dust cover as a whole is a thin-walled cylinder formed of a rubber elastic body, synthetic resin, or the like, and includes a bellows cylinder portion in which a plurality of concave main valley portions are continuously provided on the outer peripheral side. It can be expanded and contracted in the axial direction according to the amount of protrusion of the rod from the cylinder. For example, it is shown in JP2013-2507A (Patent Document 1).
- the dust cover has a small axial minimum dimension at the time of contraction in order to follow the large contraction of the shock absorber due to input from the road surface.
- the minimum dimension of the dust cover it is conceivable to reduce the number of main valley portions constituting the bellows tube portion and set the length at the time of contraction to be small.
- the dust cover is required to have an initial length that can sufficiently cover the entire protruding portion of the piston rod in the mounted state, so when trying to reduce the number of main valleys while ensuring the length of the bellows cylinder portion It is necessary to increase the inclination angle of the inclined wall portion of each main valley portion to ensure a large axial width of each main valley portion.
- the present invention has been made in the background of the above-mentioned circumstances, and the solution is to reduce the number of main valleys and reduce the length during contraction, while smoothly contracting deformation of the bellows tube Is to provide a dust cover with a novel structure.
- the dust cover having the structure according to the first aspect of the present invention, a sufficient length is ensured in the initial shape before shrinkage, and the minimum length after shrinkage is efficiently reduced. Covering and ensuring a large inclination angle of the inner peripheral part of the inclined wall part, the initial length of the bellows cylinder part is sufficiently secured by a small main valley part, and the minimum length after contraction is reduced. Because you can.
- contraction of the bellows tube portion can be realized smoothly without causing catching or abnormal noise. That is, at the initial contraction of the bellows tube portion, the outer peripheral portion of the inclined wall portion with a small inclination angle is deformed preferentially over the inner peripheral portion and overlaps in the axial direction, so that the deformation rigidity of the outer peripheral portion of the inclined wall portion is increased. Enhanced. As a result, when the amount of contraction of the bellows tube portion is increased and the inner peripheral portion is deformed, the substantial free length of the inclined wall portion is reduced, and buckling due to a compressive component hardly occurs in the inclined wall portion. Thus, the inhibition of the contraction operation due to the distorted deformation is avoided.
- the outer peripheral portion is mainly deformed, but the inner peripheral portion is also deformed and the inclination angle is reduced, so the deformation of the outer peripheral portion is completed and the inner peripheral portion is deformed.
- the compression component exerted on the inner peripheral portion becomes small.
- a sub-shape having a shallower concave shape than the main valley is provided between the two main valleys adjacent to each other in the axial direction.
- a valley is provided between the two main valleys adjacent to each other in the axial direction.
- the formation of the auxiliary valley portion ensures a large stroke amount in the axial direction of the bellows tube portion.
- the inner peripheral end of the main valley part and the inner peripheral end of the sub-valley part are positioned at positions shifted in the radial direction, and the axial direction Therefore, the minimum length during contraction can be set small.
- a third aspect of the present invention is the dust cover according to the first or second aspect, wherein the bellows tube portion is gradually made thinner as it goes to the outer peripheral side.
- deformation of the outer peripheral portion of the bellows tube portion is more likely to occur preferentially than the inner peripheral portion, and smooth contraction of the bellows tube portion is stably realized.
- a set of the inclined wall portions includes contact protrusions that protrude from one to the other. It is what has been.
- the contact protrusion in the contracted state of the bellows tube portion, is in contact with the other inclined wall portion, thereby preventing a sealed space from being formed between the pair of inclined wall portions.
- an inclination angle of an inner peripheral portion of the inclined wall portion is set to 35 ° to 55 °. It is.
- the inclination angle of the inner peripheral portion of the inclined wall portion is set to 35 ° or more, the axial width dimension of the main valley portion is sufficiently increased, and the bellows cylinder is reduced in the number of main valley portions.
- the length of the part can be sufficiently secured.
- the inclination angle of the inner peripheral portion of the inclined wall portion is 55 ° or less, so that the compression component acting on the inner peripheral portion of the inclined wall portion when the bellows tube portion contracts is prevented from becoming too large, By avoiding buckling of the inclined wall portion, smooth contraction of the bellows tube portion is realized.
- a difference between an inclination angle of the outer peripheral portion of the inclined wall portion and an inclination angle of the inner peripheral portion is 5 ° to 30 °. It is what is said.
- the difference in the inclination angle between the outer peripheral portion and the inner peripheral portion of the inclined wall portion is set to 5 ° or more, thereby ensuring a large axial width dimension in the main valley portion by the inner peripheral portion. Smooth contraction deformation can be realized by preferential deformation of the outer peripheral portion.
- the difference in the inclination angle between the outer peripheral portion and the inner peripheral portion of the inclined wall portion is 30 ° or less, so that the axial width dimension of the main valley portion can be secured also in the outer peripheral portion, and the inner peripheral portion It is possible to prevent the compression component exerted on the surface from becoming excessive with respect to the shearing component.
- the outer peripheral portion of the inclined wall portion of the main valley portion is formed at a smaller inclination angle than the inner peripheral portion, the outer peripheral portion having a smaller inclination angle is preferentially deformed when the bellows tube portion is contracted. Then, by overlapping in the axial direction, the deformation rigidity of the outer peripheral portion of the bellows tube portion is enhanced. As a result, when the amount of contraction of the bellows tube portion is increased and the inner peripheral portion is deformed, the substantial free length of the inclined wall portion is reduced and buckling of the inclined wall portion is suppressed. Smooth contraction of the part is realized.
- FIG. 2 is a vertical cross-sectional view of the dust cover shown in FIG. 1, in which the left half shows a vertical cross section at a position away from the insertion groove and the bent portion in the circumferential direction, and the right half shows the circumferential center of the insertion groove and The longitudinal cross section in the position of the top part of a bending part is shown.
- It is a longitudinal cross-sectional view which expands and shows the principal part of the dust cover shown by FIG. 1, Comprising: The figure which expands and shows A of FIG. The figure which shows the vehicle mounting state of the dust cover shown by FIG.
- FIG. 1 It is the longitudinal cross-sectional view which expands and shows the principal part of the bellows cylinder part in the dust cover shown by FIG. 1, (a) is an initial state, (b) is the state which the bellows cylinder part contracted small ( c) respectively shows the state where the bellows tube portion is greatly contracted.
- the dust cover 10 has a thin cylindrical shape as a whole, and is formed of a synthetic resin or a rubber elastic body.
- the dust cover 10 of the present embodiment is formed of a synthetic resin, and the material of the dust cover 10 is not particularly limited.
- ethylene / propylene rubber (EPDM) is mixed with polypropylene (PP) as a thermoplastic resin.
- EPDM ethylene / propylene rubber
- PP polypropylene
- those dispersed are preferably employed because they are excellent in weather resistance, moldability and the like.
- thermoplastic resin for example, polyolefin resins such as polypropylene and polyethylene, polyamide resins, polyvinyl chloride resins, polyester resins, urethane resins, styrene resins, olefin resins, etc. Any of these thermoplastic elastomers can be employed.
- blow molding is preferably employed, but injection molding can also be employed.
- the dust cover 10 is provided with a bellows cylinder portion 12 in an intermediate portion in the axial direction.
- the bellows cylinder portion 12 has a structure in which a plurality of main valley portions 14 that are continuous on the entire circumference in a substantially roll-over V-shaped cross section that is concave on the outer peripheral side are continuously arranged in the axial direction.
- the main valley portion 14 includes a pair of inclined wall portions 16 and 16 each having a tapered shape that is inclined outward in the axial direction as going to the outer peripheral side.
- the bellows cylinder part 12 is gradually thinned toward the outer peripheral side. In this embodiment, the difference in thickness is set by blow molding the dust cover 10.
- a contact protrusion 18 is formed on the inclined wall portion 16.
- the abutting protrusion 18 is a substantially hemispherical protrusion having a long axis extending along the inclination direction of the inclined wall portion 16, and protrudes from one of the pair of inclined wall portions 16, 16 toward the other. Yes.
- the four abutting projections 18, 18, 18, 18 are uniformly distributed on the circumference on the upper inclined wall portion 16, and the main valley portions 14, 14 adjacent in the axial direction are abutted.
- the formation position of the contact protrusion 18 is relatively shifted by 45 ° in the circumferential direction.
- the contact protrusion 18 is preferably in a shape that is elongated along the inclination direction of the inclined wall portion 16, but the shape is not particularly limited.
- a protrusion having a hemispherical shape or a rectangular parallelepiped shape may be employed. .
- a sub-valley portion 20 that opens to the outer peripheral side is formed between the main valley portions 14 and 14 adjacent in the axial direction.
- the sub-valley portion 20 is formed on the outer peripheral portion of the bellows tube portion 12 and is continuous on the entire periphery with a substantially roll-over V-shaped cross section recessed on the outer peripheral side, and is narrower and shallower than the main valley portion 14. ing.
- the bellows tube portion 12 can be expanded and contracted in the axial direction by changing the angle of the outer peripheral end and the angle of the inner peripheral end of the main valley portion 14 respectively. Furthermore, in this embodiment, the range of the length which can be expanded-contracted in an axial direction is enlarged more by the angle of the inner peripheral end of the sub valley part 20 changing.
- the main valley portion 14 and the sub valley portion 20 are formed at different depths, and the inner peripheral ends are positioned so as to be shifted from each other in the radial direction, so that the inner peripheral ends of the valley portions 14 and 20 are The overlapping in the axial direction is avoided, and the axial dimension of the bellows cylinder portion 12 in the most contracted state is reduced.
- an engaging cylinder portion 22 is provided in the dust cover 10 above the bellows cylinder portion 12 in the axial direction.
- the engaging cylinder portion 22 has a substantially cylindrical shape as a whole, and a flange portion 24 that protrudes toward the outer peripheral side is integrally formed at the lower end portion, and is connected to the upper end of the bellows cylinder portion 12.
- an engagement groove 26 is formed in the engagement cylinder portion 22.
- the engaging groove 26 is a concave groove that opens to the outer peripheral surface and extends over the entire circumference, and is an upper wall portion 28 in which the upper wall portion in the axial direction projects to the outer peripheral side at the upper end portion of the engaging cylinder portion 22.
- the wall portion on the lower side in the axial direction is configured with a flange portion 24.
- a plurality of insertion grooves 30 are communicated with the engagement groove 26.
- the insertion groove 30 opens in the outer peripheral surface of the engagement cylinder portion 22 and extends in the axial direction, and the lower end thereof is communicated with the engagement groove 26.
- an overpass projection 32 is formed in the engagement groove 26.
- the overpass projections 32 protrude from the bottom surface of the engagement groove 26 to the outer peripheral side at both circumferential ends of the engagement groove 26, and extend vertically between the upper wall portion 28 and the flange portion 24.
- both end portions of the engagement groove 26 are partially made shallow by the overpass projection 32, and the periphery is not blocked by the overpass projection 32. Open in the direction.
- the upper insulator 34 is an annular rubber elastic body, and a hard annular restraining member 36 is fixed to a lower end portion.
- the annular restraining member 36 has three axial positions corresponding to the insertion groove 30 in the axial view shape and thickness dimension that can be inserted into the engagement groove 26, and an axial view shape that can be inserted into the insertion groove 30. And it protrudes to the inner peripheral side with the dimension in the circumferential direction.
- the annular restraining member 36 may be integrally provided by being inserted at the time of molding the upper insulator 34 or being fixed later, or may be integrally formed in advance by, for example, two-color molding. Also good.
- the dust cover 10 is attached to the upper insulator 34 having such a structure. That is, with the protruding portion of the annular restraining member 36 of the upper insulator 34 positioned in the circumferential direction with respect to the insertion groove 30 of the dust cover 10, the engaging cylinder portion 22 of the dust cover 10 is inserted into the upper insulator 34. . Thereafter, the dust cover 10 is rotated relative to the upper insulator 34 in the circumferential direction, and the protruding portion of the annular restraining member 36 is inserted into the engaging groove 26 from the insertion groove 30 so that the annular restraining member 36 is engaged. It is locked in the axial direction with respect to the groove 26. Thereby, as shown in FIG. 4, the upper end portion of the dust cover 10 is assembled and supported on the inner peripheral side of the upper insulator 34.
- a fitting tube portion 38 is formed below the bellows tube portion 12.
- the fitting cylinder part 38 is made into the substantially cylindrical shape, and the circumferential groove 40 opened to an internal peripheral surface is formed in the intermediate part of an axial direction.
- a plurality of bent portions 42 are formed on the circumference of the fitting cylinder portion 38.
- the bent portion 42 has a mountain-shaped cross section that protrudes toward the outer peripheral side and opens toward the inner peripheral side, and extends substantially linearly in the axial direction.
- the dust cover 10 and the upper insulator 34 are attached to a suspension mechanism 44 of an automobile, for example, as shown in FIG. That is, the bellows cylinder portion 12 of the dust cover 10 is extrapolated so as to surround the piston rod 48 of the shock absorber 46 that constitutes the suspension mechanism 44, and the upper insulator 34 is attached to the piston rod 48 and the spring seat bracket (not shown). Is superimposed. Further, the upper end portion of the coil spring 50 is supported by the upper insulator 34, and the upper insulator 34 is pressed against the spring seat metal fitting by the elasticity of the coil spring 50. Note that the lower end portion of the coil spring 50 is supported by a spring bracket 54 fixed to the cylinder 52 of the shock absorber 46.
- the number of the main valley portions 14 is reduced, the minimum dimension in the contracted state of the bellows tube portion 12 is set small, and the angle of the main valley portion 14 is ensured to be large.
- the natural length of the bellows tube portion 12 is sufficiently secured.
- the inclination angle ⁇ of the outer peripheral portion 60 is smaller than the inclination angle ⁇ of the inner peripheral portion 58 ( ⁇ > ⁇ ).
- the inner peripheral portion 58 and the outer peripheral portion 60 each have a linear cross section in the axial direction, and the inner peripheral portion 58 and the outer peripheral portion 60 are continuous so as to be bent at the boundary in the vertical cross section.
- the inclination angle said here means the inclination angle with respect to the plane which spreads in the direction perpendicular to the axis, as is apparent from FIG.
- the inner peripheral portion 58 and the outer peripheral portion 60 are both tapered cylinders having a substantially constant taper angle, and the taper angle with respect to the central axis is larger than the inner peripheral portion 58 (90 ° - ⁇ ). 60 (90 ° - ⁇ ) is larger.
- the bellows tube portion 12 having the inclined wall portion 16 having such a structure is secured by the main valley portion 14 having a small axial dimension before contraction, and the minimum dimension at the time of contraction is reduced and the contraction is performed. Operation is realized smoothly.
- the outer peripheral portion 60 and the sub valley portion 20 of the main valley portion 14 having a small inclination angle are preferentially deformed, and the outer peripheral portion of the bellows tube portion 12 (of the inclined wall portion 16 Since the outer peripheral portion 60 and the sub-valley portion 20) overlap in the axial direction, the deformation rigidity of the outer peripheral portion of the bellows tube portion 12 including the outer peripheral portion 60 of the inclined wall portion 16 is increased.
- the inner peripheral part of the bellows tube portion 12 is deformed, the substantial free length of the inclined wall portion 16 is reduced, and the buckling of the inclined wall portion 16 with respect to the compression component is prevented.
- Each main valley portion 14 is folded in a well-formed shape, and smooth contraction of the bellows tube portion 12 is realized.
- the outer peripheral portions 60 and 20 of the bellows cylinder portion 12 are mainly deformed, but the inner peripheral portion 58 is also deformed and the inclination angle is smaller than before the contraction (see FIG. 5 (b)).
- the compression component which acts on the inclined wall part 16 becomes smaller, the buckling of the inclined wall part 16 is prevented, and smooth contraction is implement
- the inclination angle ⁇ of the inner peripheral portion 58 is preferably 35 ° ⁇ ⁇ ⁇ 55 °, and more preferably 40 ° ⁇ ⁇ ⁇ 50 °.
- the axial width dimension of the main valley portion 14 is ensured to be large, the length of the bellows cylinder portion 12 can be sufficiently ensured by the small main valley portion 14, and the compression component exerted on the inner peripheral portion 58 is a shear component. Therefore, the contraction operation described later can be smoothly realized.
- the radial dimension of the inner peripheral portion 58: with respect to r 1 is desirably a r 1/3 ⁇ r 2 ⁇ r 1, and more preferably, the r 1/2 ⁇ r 2 ⁇ are r 1. According to this, since the inner peripheral portion 58 having a large inclination angle is ensured to be large, the axial width dimension of the main valley portion 14 is ensured to be large, and the outer peripheral portion 60 is sufficiently ensured, which will be described later. The smooth contraction operation of the bellows cylinder portion 12 is effectively realized.
- the difference ( ⁇ ) between the inclination angle ⁇ of the inner peripheral portion 58 and the inclination angle ⁇ of the outer peripheral portion 60 is preferably 5 ° ⁇ ⁇ ⁇ 30 °, more preferably 10 ° ⁇ ⁇ ⁇ 20 °.
- the bellows cylinder portion 12 is compressed in the axial direction until the amount of contraction is maximized.
- the outer peripheral ends of the pair of inclined wall portions 16 and 16 come into contact with each other, and the intermediate portions of the pair of inclined wall portions 16 and 16 are separated from each other to form a gap.
- the contact protrusion 18 is formed on the outer peripheral end portion of the inclined wall portion 16, it is possible to prevent the outer peripheral end portions of the pair of inclined wall portions 16, 16 from adhering over the entire periphery.
- the gap formed in the intermediate portion between the pair of inclined wall portions 16 and 16 communicates with the external space at least on both sides in the circumferential direction of the contact protrusion 18.
- the inclination angle ( ⁇ ) of the side wall portions constituting the sub valley portion 20 is desirably set smaller than the inclination angle ( ⁇ ) of the inner peripheral portion 58 of the main valley portion 14 ( ⁇ ⁇ ), More preferably, the inclination angle ( ⁇ ) or less ( ⁇ ⁇ ⁇ ) of the outer peripheral portion 60 of the main valley portion 14 is set. Thereby, the sub valley part 20 can deform
- the number of formation of the main valley portion 14 and the sub valley portion 20 is not particularly limited, and can be arbitrarily changed according to the amount of contraction in the axial direction required for the bellows tube portion 12.
- the subvalley portion 20 be formed.
- the portion 20 may not be provided, and only the plurality of main valley portions 14 may be provided continuously in the axial direction.
- the inclined wall portion May be bent in multiple stages in the longitudinal section. According to this, when the bellows tube portion is contracted, the outer peripheral portion 60 is first deformed, then the intermediate portion is deformed, and finally the inner peripheral portion 58 is deformed, thereby reducing the axial width of the main valley portion. While ensuring a large amount, buckling can be effectively prevented when the inner peripheral portion 58 is deformed.
- the entire inclined wall portion has a curved cross-sectional shape, and the inclined wall portion is continuously provided in a state where the inclination angle changes without having a clear boundary between the inner peripheral portion and the outer peripheral portion. May be.
- the inner peripheral portion and the outer peripheral portion of the inclined wall portion are not limited to a linear shape in the longitudinal section, and a partial or overall curved shape can also be adopted.
- the contact protrusion 18 is provided only on the upper inclined wall portion 16, but it may be provided on both the upper and lower inclined wall portions 16, 16, or on the lower inclined wall portion 16. Can also be provided. Furthermore, in order to prevent abnormal noise when the bellows tube portion 12 contracts, a structure provided with the contact protrusion 18 is suitable, but the contact protrusion 18 is not essential and may be omitted.
- the dust cover 10 for suspension is illustrated, but the present invention can also be suitably applied to a protective cover used for other parts of the automobile.
- the scope of application of the present invention is not limited to a dust cover for automobiles, and for example, a dust cover for protecting a joint portion or the like of a robot arm is also included in the scope of application of the present invention.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Devices (AREA)
- Diaphragms And Bellows (AREA)
- Fluid-Damping Devices (AREA)
Abstract
Description
Claims (6)
- 外周側に凹となる主谷部の複数を連設した蛇腹筒部を有するダストカバーにおいて、
前記主谷部が外周に行くに従って軸方向外側に傾斜する一組の傾斜壁部を備えており、該傾斜壁部の外周部分の傾斜角度が内周部分の傾斜角度よりも小さくされていることを特徴とするダストカバー。 - 軸方向に隣り合う二つの前記主谷部の間には、該主谷部よりも浅底の凹形状を呈する副谷部が設けられている請求項1に記載のダストカバー。
- 前記蛇腹筒部が外周側に行くに従って次第に薄肉とされている請求項1又は2に記載のダストカバー。
- 一組の前記傾斜壁部には一方から他方に向かって突出する当接突起が形成されている請求項1~3の何れか1項に記載のダストカバー。
- 前記傾斜壁部の内周部分の傾斜角度が35°~55°とされている請求項1~4の何れか1項に記載のダストカバー。
- 前記傾斜壁部の外周部分の傾斜角度と内周部分の傾斜角度の差が、5°~30°とされている請求項1~5の何れか1項に記載のダストカバー。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201480020558.4A CN105102865B (zh) | 2013-09-12 | 2014-05-12 | 防尘罩 |
DE112014004205.6T DE112014004205B4 (de) | 2013-09-12 | 2014-05-12 | Staubabdeckung |
US14/541,719 US9394962B2 (en) | 2013-09-12 | 2014-11-14 | Dust cover |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013189060A JP6207310B2 (ja) | 2013-09-12 | 2013-09-12 | ダストカバー |
JP2013-189060 | 2013-09-12 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/541,719 Continuation US9394962B2 (en) | 2013-09-12 | 2014-11-14 | Dust cover |
Publications (1)
Publication Number | Publication Date |
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WO2015037272A1 true WO2015037272A1 (ja) | 2015-03-19 |
Family
ID=52665397
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2014/062590 WO2015037272A1 (ja) | 2013-09-12 | 2014-05-12 | ダストカバー |
Country Status (4)
Country | Link |
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JP (1) | JP6207310B2 (ja) |
CN (1) | CN105102865B (ja) |
DE (1) | DE112014004205B4 (ja) |
WO (1) | WO2015037272A1 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP6714368B2 (ja) | 2016-01-26 | 2020-06-24 | 住友理工株式会社 | ダストカバー |
CN109335016B (zh) * | 2018-12-04 | 2024-07-23 | 中国商用飞机有限责任公司北京民用飞机技术研究中心 | 一种紧固件封包密封工具及其使用方法 |
CN113637257A (zh) * | 2021-08-31 | 2021-11-12 | 安徽中鼎橡塑制品有限公司 | 一种波纹易回弹防压缩弯曲的空气弹簧防尘罩 |
Citations (3)
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JP2003004084A (ja) * | 2001-06-22 | 2003-01-08 | Bridgestone Corp | ダストカバー |
WO2009157567A1 (ja) * | 2008-06-26 | 2009-12-30 | 株式会社フコク | バンプストッパ及びその製造方法 |
WO2013072958A1 (ja) * | 2011-11-15 | 2013-05-23 | 東海ゴム工業株式会社 | 保護カバーとその製造方法 |
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JPS58116858U (ja) * | 1982-02-02 | 1983-08-09 | リズム自動車部品製造株式会社 | ブ−ツシ−ル |
JPH08109966A (ja) * | 1994-10-13 | 1996-04-30 | Nok Corp | ブーツ |
US7090584B2 (en) * | 2004-04-19 | 2006-08-15 | Gkn Driveline North America, Inc. | High temperature slip spline boot |
US7366044B2 (en) * | 2006-06-21 | 2008-04-29 | Kabushiki Kaisha Toshiba | Systems and methods for data transfers between memory cells |
JP2008002616A (ja) * | 2006-06-23 | 2008-01-10 | Honda Motor Co Ltd | 自在継手用ブーツ |
WO2008137029A2 (en) * | 2007-05-01 | 2008-11-13 | E. I. Du Pont De Nemours And Company | Jounce bumpers made by corrugated extrusio |
US8657271B2 (en) * | 2010-08-12 | 2014-02-25 | E I Du Pont De Nemours And Company | Thermoplastic jounce bumpers |
JP5693391B2 (ja) * | 2011-06-14 | 2015-04-01 | 株式会社ショーワ | カバー部材および懸架装置 |
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2013
- 2013-09-12 JP JP2013189060A patent/JP6207310B2/ja active Active
-
2014
- 2014-05-12 CN CN201480020558.4A patent/CN105102865B/zh not_active Expired - Fee Related
- 2014-05-12 DE DE112014004205.6T patent/DE112014004205B4/de not_active Expired - Fee Related
- 2014-05-12 WO PCT/JP2014/062590 patent/WO2015037272A1/ja active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2003004084A (ja) * | 2001-06-22 | 2003-01-08 | Bridgestone Corp | ダストカバー |
WO2009157567A1 (ja) * | 2008-06-26 | 2009-12-30 | 株式会社フコク | バンプストッパ及びその製造方法 |
WO2013072958A1 (ja) * | 2011-11-15 | 2013-05-23 | 東海ゴム工業株式会社 | 保護カバーとその製造方法 |
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CN105102865A (zh) | 2015-11-25 |
DE112014004205T5 (de) | 2016-06-16 |
JP2015055298A (ja) | 2015-03-23 |
JP6207310B2 (ja) | 2017-10-04 |
DE112014004205B4 (de) | 2021-05-27 |
CN105102865B (zh) | 2017-07-28 |
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