WO2013100076A1 - 緩衝器及び緩衝器の製造方法 - Google Patents
緩衝器及び緩衝器の製造方法 Download PDFInfo
- Publication number
- WO2013100076A1 WO2013100076A1 PCT/JP2012/083932 JP2012083932W WO2013100076A1 WO 2013100076 A1 WO2013100076 A1 WO 2013100076A1 JP 2012083932 W JP2012083932 W JP 2012083932W WO 2013100076 A1 WO2013100076 A1 WO 2013100076A1
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- WIPO (PCT)
- Prior art keywords
- case
- cylinder
- shock absorber
- screw portion
- damping force
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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
- 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
- F16F9/36—Special sealings, including sealings or guides for piston-rods
- F16F9/369—Sealings for elements other than pistons or piston rods, e.g. valves
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
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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
- 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
- F16F9/3207—Constructional features
- F16F9/3235—Constructional features of cylinders
- F16F9/325—Constructional features of cylinders for attachment of valve units
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49888—Subsequently coating
Definitions
- the present invention relates to a shock absorber that generates a damping force by controlling the flow of a working fluid in a cylinder with respect to the stroke of a piston rod, and a method of manufacturing the shock absorber.
- a cylindrical member is protruded from a side wall of a shock absorber main body including a cylinder.
- a damping force generation mechanism including a valve, a solenoid, and the like is accommodated in the inside of the member.
- a damping member accommodated in the cylindrical member is formed by screwing a cylindrical nut member on a screw portion formed on the outer periphery of the tip portion of the cylindrical member. The force generation mechanism is fixed.
- the present invention includes a cylinder in which a working fluid is sealed, a piston inserted into the cylinder, A piston rod connected to the piston and extending outside the cylinder;
- the shock absorber provided with a damping force generation mechanism that generates a damping force by controlling the flow of the working fluid caused by sliding of the piston in the cylinder,
- a cylindrical case projecting to the side of the shock absorber main body including the cylinder, a male screw portion formed on the outer peripheral portion of the case, and a female screw portion screwed into the male screw portion are provided on the inner peripheral portion.
- the shock absorber has an annular seal groove formed on the outer periphery of the case, and the seal member is fitted in the seal groove, Fitting the seal member into the annular groove of the case; A step of masking the male screw portion by externally fitting a mask member having a cylindrical portion whose inner peripheral surface is in close contact with the seal member fitted in the seal groove; And a step of coating the outer peripheral portion of the case.
- SYMBOLS 1 Shock absorber, 2 ... Cylinder, 3 ... Outer cylinder (buffer body part), 5 ... Piston, 6 ... Piston rod, 25 ... Damping force generation mechanism, 26 ... Case, 34 ... Nut member (screwing member) 50 ... Male thread part, 60 ... O-ring (seal member)
- the shock absorber 1 is a cylindrical damping force adjustment type hydraulic shock absorber, and has a multi-cylinder structure in which an outer cylinder 3 is provided outside a cylinder 2.
- An annular reservoir 4 is formed between the cylinder 2 and the outer cylinder 3.
- a piston 5 is slidably fitted in the cylinder 2, and the inside of the cylinder 2 is defined by the piston 5 as two chambers, a cylinder upper chamber 2A and a cylinder lower chamber 2B.
- One end of a piston rod 6 is connected to the piston 5 by a nut 7, and the other end side of the piston rod 6 passes through the cylinder upper chamber 2 ⁇ / b> A and is a rod guide attached to the upper ends of the cylinder 2 and the outer cylinder 3. 8 and an oil seal 9 are extended to the outside of the cylinder 2.
- a base valve 10 that partitions the cylinder lower chamber 2 ⁇ / b> B and the reservoir 4 is provided at the lower end of the cylinder 2.
- the piston 5 is provided with passages 11 and 12 for communicating between the cylinder upper and lower chambers 2A and 2B.
- the passage 12 is provided with a check valve 13 that allows only fluid to flow from the cylinder lower chamber 2B side to the cylinder upper chamber 2A side, and the passage 11 contains fluid in the cylinder upper chamber 2A side.
- a disk valve 14 is provided that opens when the pressure reaches a predetermined pressure and relieves it to the cylinder lower chamber 2B side.
- the base valve 10 is provided with passages 15 and 16 for allowing the cylinder lower chamber 2B and the reservoir 4 to communicate with each other.
- the passage 15 is provided with a check valve 17 that allows only fluid to flow from the reservoir 4 side to the cylinder lower chamber 2B side.
- the pressure of the fluid on the cylinder lower chamber 2B side is provided.
- a disk valve 18 is provided that opens when a predetermined pressure is reached and relieves it to the reservoir 4 side.
- An oil liquid is sealed in the cylinder 2 as a working fluid, and an oil liquid and a gas are sealed in the reservoir 4.
- a separator tube 20 is externally fitted to the cylinder 2 via seal members 19 at both upper and lower ends, and an annular passage is formed between the side wall of the cylinder 2 and the cylindrical side wall of the separator tube 20 provided on the outer periphery thereof. 21 is formed.
- the annular passage 21 is communicated with the cylinder upper chamber 2 ⁇ / b> A by a passage 22 provided in a side wall near the upper end portion of the cylinder 2.
- a small-diameter substantially cylindrical branch pipe 45 having a connection port 23 communicating with the annular passage 21 protrudes from the lower portion of the side wall of the separator tube 20.
- a large-diameter inlet 24 is opened on the side wall of the outer cylinder 3 substantially concentrically with the branch pipe 45, and a damping force generating mechanism 25 is attached to the inlet 24 on the side wall of the outer cylinder 3.
- the damping force generating mechanism 25 is provided in a cylindrical or cylindrical case 26 that protrudes from the side of the outer cylinder 3 that constitutes the shock absorber main body including the cylinder 2.
- the case 26 is attached to the inlet 24 of the outer cylinder 3, and includes a pilot type (back pressure type) main valve 27 and a pilot valve 28 that is a solenoid-driven pressure control valve that controls the valve opening pressure of the main valve 27. Further, a fail valve 29 that operates at the time of a failure is provided on the downstream side of the pilot valve 28.
- the connecting pipe 30 is inserted in a liquid-tight manner into the connection port 23 of the branch pipe 45 of the separator tube 20.
- the oil liquid is introduced from the connection port 23 into the connecting pipe 30 and is circulated through the main valve 27, the pilot valve 28 and the fail valve 29 to the chamber 26 ⁇ / b> A surrounded by the case 26.
- the oil liquid in the chamber 26A flows into the reservoir 4 through the passage 31 at the end of the case 26 and the inlet 24 of the outer cylinder 3.
- the flow of the oil is controlled by the pilot valve 28 to generate a damping force.
- the damping force is mainly generated by the main valve 27.
- a part of the oil fluid upstream of the pilot valve 28 is introduced into the back pressure chamber 32 at the back of the main valve 27, and the internal pressure acts in the valve closing direction of the main valve 27.
- the damping force can be adjusted by adjusting the control pressure of the pilot valve 28 by the current supplied to the solenoid 40 via the lead wire 42.
- the internal pressure of the back pressure chamber changes and the main valve 27
- the valve opening pressure and the opening degree can be adjusted.
- the fail valve 29 is closed when the vehicle is stopped waiting for a signal, or when the solenoid 40 is de-energized, and the valve is closed instead of the pilot valve 27 that is normally open.
- the connecting pipe 30, the spacer 32 constituting the passage 31, the main valve 27, the main body 35 constituting the pilot valve 28 and the fail valve 29, the pilot pin 36 and the pilot body 37, and the solenoid 40 are accommodated.
- a solenoid case 41 (fitting member) is inserted, and these are fixed by applying an axial force by screwing a nut member 34 as a screwing member into the opening side of the case 26.
- a male screw portion 50 is formed on the outer periphery of the opening of the case 26.
- a seal groove 53 is formed in the outer peripheral portion of a cylindrical portion 41A inserted and fitted into the case 26.
- An O-ring 54 that is a main seal member is fitted in the seal groove 53, and the space between the case 26 and the solenoid case 41 is sealed by the O-ring 54.
- the nut member 34 has a substantially cylindrical shape, and a female screw portion 55 that is threadedly engaged with the male screw portion 50 of the case 26 is formed on an inner peripheral surface on one end side that is externally fitted to the case 26.
- the inner peripheral portion on the other end side of the nut member 34 is reduced in diameter so as to be in sliding contact with or close to the outer peripheral surface of the solenoid case 41 to form a locking portion 56 that is a stepped portion.
- An annular locking groove 57 is formed on the outer peripheral portion of the solenoid case 41 so as to face the locking portion 56 of the nut member 34, and an inner peripheral portion of a retaining ring 58 having a circular cross section is fitted into the locking groove 57.
- the solenoid case 41 is inserted into the case 26, the female screw portion 55 of the nut member 34 is screwed together, and the nut member 34 is tightened, whereby the locking portion 56 of the nut member 34 becomes the outer peripheral portion of the retaining ring 58.
- the solenoid case 41 is pressed in the axial direction. As a result, an axial force is applied to the connecting pipe 30, the spacer 32, the main body 35, the pilot pin 36 and the pilot body 37 inserted into the case 26 to fix them.
- An engaging portion 59 for engaging a tool for tightening the nut member 34 is formed at the other end of the nut member 34.
- An annular seal groove 51 is formed on the outer peripheral surface of the case 26 adjacent to the proximal end side of the male screw portion 50, and an O-ring 60 that is a seal member is fitted in the seal groove 51.
- a seal surface 61 is formed in the seal groove 51 of the case 26 adjacent to the distal end side of the female screw portion 55 on the inner peripheral portion on one end side of the nut member 34.
- the shock absorber 1 is between two members that can move relative to each other, such as between the spring (vehicle body side) and the unsprung (wheel side) of the suspension device of the vehicle with the piston rod 6 side upward and the base valve 10 side downward.
- the lead wire 42 is connected to the control device.
- the check valve 13 of the piston 5 is closed by the movement of the piston 5 in the cylinder 2, and the fluid on the cylinder upper chamber 2A side is pressurized before the disc valve 14 is opened. Then, it passes through the passage 22 and the annular passage 21 and flows into the inlet passage 30 of the damping force generation mechanism 25 from the connection port 23 of the separator tube 20.
- the fluid flowing in from the inlet passage 30 passes through the main valve 27, the pilot valve 28 and the fail valve 29 to the chamber 26 ⁇ / b> A surrounded by the case 26, and further, the passage 31 and the outer cylinder 3 at the end of the case 26. And flows into the reservoir 4 through the inlet 24.
- the fluid corresponding to the movement of the piston 5 opens the check valve 17 of the base valve 10 from the reservoir 4 and flows into the cylinder lower chamber 2B.
- the pressure in the cylinder upper chamber 2A reaches the valve opening pressure of the disk valve 14 of the piston 5
- the disk valve 14 is opened, and the pressure in the cylinder upper chamber 2A is relieved to the cylinder lower chamber 2B. Prevent excessive pressure rise of 2A.
- the check valve 13 of the piston 5 is opened by the movement of the piston 5 in the cylinder 2, the check valve 17 of the passage 15 of the base valve 10 is closed, and before the disk valve 18 is opened.
- the fluid in the piston lower chamber 2B flows into the cylinder upper chamber 2A, and the fluid corresponding to the piston rod 6 that has entered the cylinder 2 flows from the cylinder upper chamber 2A through the same path as in the extension stroke to the reservoir. It flows to 4.
- the pressure in the cylinder lower chamber 2B reaches the valve opening pressure of the disk valve 18 of the base valve 10
- the disk valve 18 is opened, and the pressure in the cylinder lower chamber 2B is relieved to the reservoir 4, thereby Prevent excessive pressure rise of 2B.
- the damping force generating mechanism 25 generates a damping force by the pilot valve 28 before the main valve 27 is opened (piston speed low speed region), and the main valve 27 is opened. After the valve (piston speed high speed region), a damping force is generated according to the opening.
- the damping force can be adjusted by adjusting the control pressure of the pilot valve 28 by the energization current to the solenoid 40. As a result, the internal pressure of the back pressure chamber 32 changes and the valve opening pressure of the main valve 27 changes. And the opening degree can be adjusted.
- the fail valve 29 is closed, and the flow of the oil liquid is made instead of the normally open pilot valve.
- the male screw portion 50 and the female screw portion 55 that screw the case 26 and the nut member 34 are sealed from the outside. Therefore, it is possible to prevent foreign matters such as moisture and dust from entering the uncoated male screw portion 50 and the female screw portion 55 from the outside. Rust and corrosion of the male screw portion 50 and the female screw portion 55 can be prevented.
- the opposite side of the O-ring 60 of the male screw portion 50 and the female screw portion 55 is the engagement of the retaining ring 58 and the locking portion 56 and the nut member 34 having a long axial length (seal length) to some extent.
- the small diameter portion can form a very small gap between the nut member 34 and the retaining ring 58, it is possible to suppress the entry of foreign matters such as moisture and dust. Even if foreign matter such as moisture and dust enters from between the nut member 34 and the retaining ring 58, the case 26 and the solenoid case 41 are sealed by the O-ring 54. Intrusion of foreign matter such as moisture and dust can be prevented.
- the outer cylinder 3 to which the case 26 is integrally attached by welding or the like is subjected to electrodeposition coating such as cationic electrodeposition coating.
- electrodeposition coating such as cationic electrodeposition coating.
- masking is performed so that the paint does not adhere to the inside of the outer cylinder 3 and the case 26 and the male screw portion 50 on the outer peripheral portion of the case 26.
- the male screw portion 50 is fitted with an O-ring 60 in the seal groove 51, and a substantially bottomed cylindrical masking member 100 is put on the male screw portion 50 as shown in FIG.
- Masking is performed by bringing the inner peripheral surface into close contact with the O-ring 60.
- the masking member 100 can be appropriately selected from a stretchable material such as silicone resin and capable of withstanding the heat during painting.
- the masked outer cylinder 3 and the case 26 are immersed in an electrodeposition tank to perform electrodeposition coating. Thereby, masking at the time of painting can be performed using the O-ring 60.
- the connecting pipe 30, the spacer 32, the main body 35, the pilot pin 36, the pilot body 37, and the solenoid case 41 are inserted into the case 26, and the nut member 34 is screwed into the case 26 to apply axial force. Fix each of the parts.
- the connecting pipe 30, the spacer 32, the main body 35, the pilot pin 36, the pilot body 37, and the solenoid case 41 may be appropriately sub-assembled.
- the O-ring 60 can function as a masking during painting in the manufacturing process of the shock absorber 1, and after completion of the shock absorber 1, the unpainted male screw portion 50 and the female screw portion. It functions as a seal of 55, and the occurrence of rust and corrosion can be suppressed.
- the seal groove 51 of the O-ring 60 may be formed on the nut member 34 side instead of being formed on the case 26 side.
- the outer cylinder 3 and the case 26 are painted, it is necessary to provide a sealing means on the masking member side instead of the O-ring 60. It is more preferable to form the O-ring 60 on the case 26 side because it is not necessary to replace the masking member on the case 26 side after the O-ring 26 is mounted in the seal groove 51.
- the case where the present invention is applied to a double cylinder type damping force adjustment type shock absorber is described as an example.
- the present invention is not limited to this, and the outer cylinder 3 (buffer body) and the case As long as it has a member corresponding to 26, it can be applied to other types of shock absorbers.
- case side screw portion is a male screw and the screwing member side screw portion is a female screw
- case side screw portion may be a female screw and the screwing member side screw portion may be a male screw.
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Abstract
Description
該ピストンに連結されて前記シリンダの外部に延出されたピストンロッドと、
前記シリンダ内のピストンの摺動による作動流体の流れを制御して減衰力を発生させる減衰力発生機構とを備えた緩衝器において、
前記シリンダを含む緩衝器本体部の側部に突出する筒状のケースと、該ケースの外周部に形成された雄ネジ部と、前記雄ネジ部に螺合する雌ネジ部が内周部に形成された筒状の螺合部材と、前記ケースの外周部と前記螺合部材の内周部との間に設けられて前記雄ネジ部及び雌ネジ部を外部からシールする環状のシール部材とを備えていることを特徴とする。
また、上記緩衝器の製造方法であって、
前記緩衝器は、前記ケースの外周部に環状のシール溝が形成され、前記シール部材は、前記シール溝に嵌合されており、
前記ケースの環状溝に前記シール部材を嵌合する工程と、
前記シール溝に嵌合された前記シール部材に内周面が密着する筒状部を有するマスク部材を前記ケースに外嵌して、前記雄ネジ部をマスクする工程と、
前記ケースの外周部を塗装する工程とを有すること特徴とする緩衝器の製造方法。
図1及び図2に示すように、本実施形態に係る緩衝器1は、筒型の減衰力調整式油圧緩衝器であって、シリンダ2の外側に外筒3を設けた複筒構造で、シリンダ2と外筒3との間に環状のリザーバ4が形成されている。シリンダ2内には、ピストン5が摺動可能に嵌装され、このピストン5によってシリンダ2内がシリンダ上室2Aとシリンダ下室2Bとの2室に画成されている。ピストン5には、ピストンロッド6の一端がナット7によって連結されており、ピストンロッド6の他端側は、シリンダ上室2Aを通り、シリンダ2及び外筒3の上端部に装着されたロッドガイド8およびオイルシール9に挿通されて、シリンダ2の外部へ延出されている。シリンダ2の下端部には、シリンダ下室2Bとリザーバ4とを区画するベースバルブ10が設けられている。
ケース26の開口部の外周部には、雄ネジ部50が形成されている。ソレノイドケース41は、ケース26に挿入、嵌合される円筒部41Aの外周部にシール溝53が形成されている。シール溝53に主シール部材であるOリング54が嵌合され、Oリング54によって、ケース26とソレノイドケース41との間がシールされている。ナット部材34は、略円筒状で、ケース26に外嵌される一端側内周面に、ケース26の雄ネジ部50に螺合する雌ネジ部55が形成されている。また、ナット部材34の他端側の内周部は、ソレノイドケース41の外周面に摺接又は近接するように縮径されて、段部である係止部56が形成されている。ソレノイドケース41の外周部には、ナット部材34の係止部56に対向して、環状の係止溝57が形成され、係止溝57に円形断面を有する止輪58の内周部が嵌合されている。そして、ソレノイドケース41をケース26内に挿入し、ナット部材34の雌ネジ部55を螺合して、ナット部材34を締付けることにより、ナット部材34の係止部56が止輪58の外周部に係合して、ソレノイドケース41を軸方向に押圧する。これにより、ケース26内に挿入された連結管30、スペーサ32、メインボディ35、パイロットピン36及びパイロットボディ37に軸力を付与して、これらを固定する。ナット部材34の他端部には、ナット部材34を締付ける工具を係合するための係合部59が形成されている。
緩衝器1は、ピストンロッド6側を上方に、ベースバルブ10側を下方に向けて車両のサスペンション装置のバネ上(車体側)、バネ下(車輪側)間等の相対移動可能な2部材間に装着され、リード線42が制御装置に接続される。
ケース26が溶接等によって一体に取付けられた外筒3は、カチオン電着塗装等の電着塗装が施される。このとき、外筒3及びケース26の内部、並びに、ケース26の外周部の雄ネジ部50に塗料が付着しないようにマスキングを行う。雄ネジ部50は、シール溝51にOリング60を嵌合し、図3に示すように略有底円筒状のマスキング部材100を雄ネジ部50に被せて、そのマスキング部材100の円筒部の内周面をOリング60に密着させて、マスキングを行う。ここで、マスキング部材100は、シリコン樹脂など伸縮性があり、かつ塗装時の熱に耐えうる材質を適宜選択可能である。次に、マスキングされた外筒3及びケース26を電着槽に浸漬して電着塗装を行う。これにより、Oリング60を利用して塗装時のマスキングを行うことができる。
Claims (6)
- 作動流体が封入されたシリンダと、該シリンダ内に挿入されたピストンと、
該ピストンに連結されて前記シリンダの外部に延出されたピストンロッドと、
前記シリンダ内のピストンの摺動による作動流体の流れを制御して減衰力を発生させる減衰力発生機構とを備えた緩衝器において、
前記シリンダを含む緩衝器本体部の側部に突出する筒状のケースと、該ケースの外周部に形成されたケース側ネジ部と、前記ケース側ネジ部に螺合するネジ部が内周部に形成された筒状の螺合部材と、前記ケースの外周部と前記螺合部材の内周の螺合部材側ネジ部との間に設けられて前記ケース側ネジ部及び螺合部材側ネジ部を外部からシールする環状のシール部材とを備えていることを特徴とする緩衝器。 - 前記ケースの外周部に環状のシール溝が形成され、前記シール部材は、前記シール溝に嵌合されていることを特徴とする請求項1に記載の緩衝器。
- 前記ケースは、外周部の少なくとも一部が塗装され、前記雄ネジ部は、未塗装であることを特徴とする請求項1又は2に記載の緩衝器。
- 前記ケース内に嵌合されて前記螺合部材によって前記ケースに固定される嵌合部材を有し、前記ケースの内周部と前記嵌合部材の外周部との間に環状の主シール部材が設けられていることを特徴とする請求項1乃至3のいずれかに記載の緩衝器。
- 前記ケース側ネジ部は雄ネジ、前記螺合部材側ネジ部は雌ネジとすることを特徴とする請求項1乃至4の何れかに記載の緩衝器。
- 請求項2に記載の緩衝器の製造方法であって、
前記ケースの環状溝に前記シール部材を嵌合する工程と、
前記シール溝に嵌合された前記シール部材に内周面が密着する筒状部を有するマスク部材を前記ケースに外嵌して、前記雄ネジ部をマスクする工程と、
前記ケースの外周部を塗装する工程とを有すること特徴とする緩衝器の製造方法。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013551806A JP6000285B2 (ja) | 2011-12-27 | 2012-12-27 | 緩衝器の製造方法 |
US14/367,527 US9353822B2 (en) | 2011-12-27 | 2012-12-27 | Shock absorber and method for manufacturing shock absorber |
CN201280065141.0A CN104053924B (zh) | 2011-12-27 | 2012-12-27 | 缓冲器以及缓冲器的制造方法 |
DE112012005490.3T DE112012005490T5 (de) | 2011-12-27 | 2012-12-27 | Stoßdämpfer und Verfahren zur Stoßdämpferherstellung |
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JP2011-285832 | 2011-12-27 | ||
JP2011285832 | 2011-12-27 |
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WO2013100076A1 true WO2013100076A1 (ja) | 2013-07-04 |
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PCT/JP2012/083932 WO2013100076A1 (ja) | 2011-12-27 | 2012-12-27 | 緩衝器及び緩衝器の製造方法 |
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JP (1) | JP6000285B2 (ja) |
CN (1) | CN104053924B (ja) |
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JP5843842B2 (ja) * | 2013-05-30 | 2016-01-13 | 日立オートモティブシステムズ株式会社 | 減衰力調整式緩衝器 |
JP6238473B2 (ja) * | 2013-11-29 | 2017-11-29 | 日立オートモティブシステムズ株式会社 | 緩衝器 |
JP6588778B2 (ja) * | 2015-09-14 | 2019-10-09 | Kyb株式会社 | 減衰弁及び緩衝器 |
CN107429778B (zh) * | 2015-10-27 | 2019-04-26 | 日立汽车系统株式会社 | 缓冲器及缓冲器的装配方法 |
CN111386408B (zh) * | 2017-11-28 | 2022-05-27 | 日立安斯泰莫株式会社 | 缸体装置的制造方法 |
CN108679144B (zh) * | 2018-07-25 | 2020-03-06 | 重庆大学 | 汽车悬架及其先导式半主动阻尼器 |
WO2021117800A1 (ja) * | 2019-12-12 | 2021-06-17 | 日立Astemo株式会社 | ソレノイド、減衰力調整機構および減衰力調整式緩衝器 |
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- 2012-12-27 CN CN201280065141.0A patent/CN104053924B/zh active Active
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CN104053924A (zh) | 2014-09-17 |
CN104053924B (zh) | 2016-08-24 |
JPWO2013100076A1 (ja) | 2015-05-11 |
DE112012005490T5 (de) | 2014-09-04 |
US20140339032A1 (en) | 2014-11-20 |
JP6000285B2 (ja) | 2016-09-28 |
US9353822B2 (en) | 2016-05-31 |
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