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61. 发明专利

JP2009248720A Bearing apparatus for driving wheel and axle module 审中-公开
标题翻译：用于驱动车轮和轴组件的轴承装置
公开(公告)号：JP2009248720A
公开(公告)日：2009-10-29
申请号：JP2008098375
申请日：2008-04-04
申请人： Ntn Corp , Ntn株式会社
发明人： YAMAUCHI KIYOSHIGE
IPC分类号： B60B35/14 , B60B35/18 , F16C19/18 , F16C33/58 , F16C35/063 , F16C35/077 , F16D1/06 , F16D3/20 , F16D3/2245
摘要： PROBLEM TO BE SOLVED: To provide a low-cost wheel bearing apparatus for a driving wheel with which the number of man-hours and assembly steps can be reduced, and with which component replacement fees and repair costs can be reduced.
SOLUTION: This bearing apparatus for a driving wheel includes an external member 25 fitted with a vehicle knuckle hole by a predetermined joining, an internal member composed of a hub ring 1 having a flange 21 for fixing the wheel and an inner ring 24 fitted with the hub ring 1, double-row rolling elements 30 rollably interposed between the external member 25 and the internal members 1, 24, and an outside joint member 5 of a constant velocity universal joint integral with the hub ring 1 via a projection-recess fitting structure M formed by press-fitting. An annular groove is formed in both an outer peripheral surface 25a of the external member 25 and an inner peripheral surface of the knuckle hole, and a retaining ring 130 is engaged in both annular grooves. The external member 25 is prevented from coming off of the knuckle, and the external member 25 can be separated from the knuckle only as a result of deformation or breakage of the retaining ring 130.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于驱动轮的低成本车轮轴承装置，能够减少工时和组装步骤的数量，并且可以减少部件更换费用和维修成本。解决方案：用于驱动轮的该轴承装置包括通过预定接合装配有车辆转向节孔的外部构件25，内部构件由具有用于固定车轮的凸缘21的轮毂环1和内圈24 装配有轮毂环1，双列滚动元件30可滚动地插入在外部构件25和内部构件1,24之间，以及等距万向节的外侧接头构件5，其通过突出部分与毂环1成一体。通过压入形成的凹部嵌合结构M. 外部构件25的外周面25a和转向节孔的内周面都形成有环状的槽，并且保持环130与两个环状槽接合。外部构件25被阻止从转向节脱落，并且仅由于保持环130的变形或破损，外部构件25可以仅从转向节分离。（C）2010，JPO＆INPIT

62. 发明专利

JP2009248596A Bearing device for wheel and axle module 审中-公开
标题翻译：用于车轮和轴组件的轴承装置
公开(公告)号：JP2009248596A
公开(公告)日：2009-10-29
申请号：JP2008095300
申请日：2008-04-01
申请人： Ntn Corp , Ntn株式会社
发明人： YAMAUCHI KIYOSHIGE
IPC分类号： B60B35/14 , B60B35/18 , F16C19/18 , F16C25/08
摘要： PROBLEM TO BE SOLVED: To provide a bearing device for a wheel and an axle module capable of reducing circumferential play, in which a hub ring and an outer joint member of a constant velocity universal joint can be easily connected to each other, into which foreign matter (such as mud and salty water) is prevented from intruding to suppress internal rust, and which stably transmit torque over a long period. SOLUTION: Axially extending ridges 35 are provided either on the outer diameter surface of a shaft section 12 of the outer joint member or on the inner diameter surface 37 of a hole section 22 in the hub ring 1, and the ridges are axially press fitted to the other. This forms, in the other, the ridges 36 to be in close contact with the ridges 35 by the ridges 35, thereby forming a ridge-groove fitting structure M, in which the whole fitting and contacting area of the ridges 35 and grooves 36 are in close contact with each other. A wheel pilot section 97 fitted on the inner periphery of the wheel is constituted by a separate member from the hub ring 1. A coating film 81 is formed as a sealing member along the inner diameter surface on the outboard side of the hub ring 1 and the outer periphery of an edge on the outboard side of the shaft section 12 to close an opening on the outboard side of the hub ring 1. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种能够减小轮毂环和等速万向接头的外接头构件能够容易地彼此连接的能够减小周向间隙的车轮和车轴组件的轴承装置，防止异物（如泥浆和咸水）入侵以抑制内部锈蚀，并且长时间稳定地传递扭矩。解决方案：轴向延伸脊35设置在外接头构件的轴部12的外径表面上或轮毂环1中的孔部22的内径表面37上，并且脊是轴向的按压到另一个。另一方面，脊脊36通过脊35与脊35紧密接触，从而形成脊槽配合结构M，其中脊35和槽36的整体配合和接触面积为彼此密切联系。安装在车轮内周上的车轮引导部97由与轮毂环1分离的部件构成。涂膜81沿轮毂环1的外侧面的内径面形成为密封部件，轴部12的外侧的边缘的外周，以封闭轮毂环1的外侧的开口。（C）2010，JPO＆INPIT

63. 发明专利

JP2009216231A Wheel bearing device 审中-公开
标题翻译：车轮轴承装置
公开(公告)号：JP2009216231A
公开(公告)日：2009-09-24
申请号：JP2008063529
申请日：2008-03-13
申请人： Ntn Corp , Ntn株式会社
发明人： KAMETAKA KOJI , YAMAUCHI KIYOSHIGE
IPC分类号： F16C33/62 , B60B35/18 , F16C19/18 , F16C35/077
摘要： PROBLEM TO BE SOLVED: To provide wheel bearing device which achieves cost reduction by attaining the simplification of a processing step and the shortening of a processing time while preventing the electrical erosion in a knuckle by combining a steel bearing and a light alloy knuckle.
SOLUTION: In the wheel bearing device with an outer member 2 integrally having a body mounting flange 2b which is attached on the outer circumference to the light alloy knuckle 10 and is internally set to this knuckle 10 and support the wheel rotatably, the simplification of the processing step and shortening of the processing time for the insulation membrane Z can be attained while preventing the occurrence of the electrical erosion in the knuckle 10 since the insulation membrane Z of an ultraviolet curing paint of an acrylic synthetic resin mixed with the dye for coloring is formed on the outer circumferential face 11 extending in the axial direction to inner side from the body mounting flange 2b of the outer member 2, the side face 12 of the inner side of the body mounting flange 2b and its outer circumferential face 13.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供通过实现简化加工步骤和缩短加工时间而实现成本降低的车轮轴承装置，同时通过组合钢轴承和轻合金转向节来防止转向节中的电蚀损。解决方案：在具有外部构件2的车轮轴承装置中，其一体地具有主体安装凸缘2b，该主体安装凸缘2b附接到外部圆周上的轻合金转向节10并且内部设置到该转向节10并可旋转地支撑车轮，由于与染料混合的丙烯酸类合成树脂的紫外线固化涂料的绝缘膜Z，可以防止在转向节10中发生电蚀，从而可以实现加工步骤的简化和缩短绝缘膜Z的加工时间在从外部构件2的主体安装凸缘2b到主体安装凸缘2b的内侧的侧面12及其外周面13的外周面11上形成有用于着色的外周面11，版权所有（C）2009，JPO＆INPIT

64. 发明专利

JP2009047225A Bearing unit for wheel 审中-公开
标题翻译：轴承轴承单元
公开(公告)号：JP2009047225A
公开(公告)日：2009-03-05
申请号：JP2007213025
申请日：2007-08-17
申请人： Ntn Corp , Ntn株式会社
发明人： OZAWA HITOHIRO , YAMAUCHI KIYOSHIGE , NAKAGAWA AKIRA , ASANO YUICHI
IPC分类号： F16D3/20 , B60B35/14 , B60B35/18 , F16C19/18 , F16C33/58 , F16C35/063 , F16D1/06
CPC分类号： F16C35/0635
摘要： PROBLEM TO BE SOLVED: To provide a bearing unit for a wheel having a concavo-convex fitting structure capable of firmly connecting a hub wheel and an outside joint member of a constant velocity universal joint while plays in the circumferential direction can be prevented so that stable torque transmission can be obtained. SOLUTION: The bearing unit for the wheel comprises the hub wheel 1, a double row rolling bearing 2, and a constant velocity universal joint 3 as units. The concavo-convex fitting structure is provided by integrating the hub wheel 1, and an axial part 12 of the outside joint member of the constant velocity universal joint 3. A convex part 35 extending in the axial direction is provided on the external diameter face of the axial part 12 of the outside joint member. A concave groove 39 alongside the circumferential direction is provided on the inter diameter face of the hole part 22 of the hub wheel 1. The axial part 12 of the outside joint member is inserted into the hole part 22 of the hub wheel 1 and a concave part which contacts and fits the convex part 35 on the inner diameter face of the hole part 22 of the hub wheel 1 is intermittently formed in the axial direction. The convex part 35 of the axial part 12 and the concave part of the hub wheel 1 are brought into dose contact in their entire contact region to form a concavo-convex fitting structure. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种具有凹凸配合结构的轮的轴承单元，其能够在圆周方向上起作用时能够牢固地连接轮毂轮和等速万向节的外侧接头构件。从而可以获得稳定的扭矩传递。解决方案：用于车轮的轴承单元包括轮毂轮1，双列滚动轴承2和等速万向接头3作为单元。通过集成轮毂轮1和等速万向接头3的外侧接头构件的轴向部分12来提供凹凸配合结构。在轴向方向上延伸的凸部35设置在外侧接头构件的轴向部分12。在轮毂圈1的孔部22的内径面上设置有沿圆周方向的凹槽39.外侧接头构件的轴向部分12插入到轮毂圈1的孔部22中，在轮毂轮1的孔部22的内径面上接触并配合凸部35的部分沿轴向间歇地形成。轴部12的凸部35和轮毂轮1的凹部在其整个接触区域中进行剂量接触，以形成凹凸配合结构。版权所有（C）2009，JPO＆INPIT

65. 发明专利

JP2008296666A Wheel bearing device 审中-公开
标题翻译：车轮轴承装置
公开(公告)号：JP2008296666A
公开(公告)日：2008-12-11
申请号：JP2007142982
申请日：2007-05-30
申请人： Ntn Corp , Ntn株式会社
发明人： YAMAUCHI KIYOSHIGE
IPC分类号： B60B27/00 , B60B35/14 , F16C19/18 , F16C33/62 , F16C33/64
CPC分类号： Y02T10/86
摘要： PROBLEM TO BE SOLVED: To provide a wheel bearing device wherein a hub ring has improved strength and durability under rotated and bent conditions while a wheel mounting flange has a reduced weight without changing its shape and size and giving deterioration to its face run-out.
SOLUTION: The fourth-generation wheel bearing device comprises a stem part 16 pressed into the hub ring 1 via a predetermined interference, the hub ring 1 and the stem part 16 being welded and integrally joined to each other via a joint portion 23. Herein, a pitch circle diameter PCDi of six-row rolling elements on the inner side is larger than a pitch circle diameter PCDo on the outer side, and the number of the rolling elements 6 on the inner side is set to be greater than that on the outer side. The hub ring 1 is formed of medium carbon steel containing 0.40-0.80 wt.% carbon and subjected to tempering treatment so that the surface hardness is set to be 35 HRC or lower. An inside rolling surface 1a and a base 24 of the wheel mounting frame 7 are subjected to high frequency hardening to form a hardened layer 21 with its surface hardness in a range of 58-64 HRC.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种车轮轴承装置，其中轮毂环在旋转和弯曲条件下具有改善的强度和耐久性，而轮安装法兰具有减小的重量而不改变其形状和尺寸并使其表面磨损变差退房手续。解决方案：第四代车轮轴承装置包括经由预定干涉压入轮毂环1的杆部16，轮毂环1和杆部16通过接合部23被焊接并彼此一体地接合这里，内侧的六列滚动元件的节圆直径PCDi大于外侧的节圆直径PCDo，内侧的滚动体6的数量设定为大于在外侧轮毂圈1由含有0.40-0.80重量％碳的中碳钢形成，并进行回火处理，使得表面硬度设定为35HRC以下。对车轮安装架7的内侧滚动面1a和底座24进行高频硬化，形成表面硬度在58〜64HRC范围内的硬化层21。版权所有（C）2009，JPO＆INPIT

66. 发明专利

JP2008230487A Bearing device for driving wheel 有权
标题翻译：用于驱动车轮的轴承装置
公开(公告)号：JP2008230487A
公开(公告)日：2008-10-02
申请号：JP2007075103
申请日：2007-03-22
申请人： Ntn Corp , Ntn株式会社
发明人： TORII AKIRA , KAWAMURA HIROSHI , YAMAUCHI KIYOSHIGE , OZAWA HITOHIRO
IPC分类号： B60B35/14 , B60B35/18 , F16C19/18 , F16C35/063
CPC分类号： Y02T10/86
摘要： PROBLEM TO BE SOLVED: To provide a bearing device for a driving wheel which can eliminate the nut fastening work, can reduce cost, can suppress the generation of hoop stress and can prevent the occurrence of a malfunction of a bearing.
SOLUTION: The bearing device for a driving wheel is a unit composed of a hub wheel 10, a double row rolling bearing 20 and a constant velocity universal joint 30, and has an uneven fitting structure M for integrating the hub wheel 10 and a stem 32b of an outside joint member 32 in the constant velocity universal joint 30 fitted in a hole part 65 of the hub wheel 10. Either one projection of the hub wheel 10 or stem 32b of an outside joint member 32 and a recess of the other member are brought into intimate contact with the entire fitted contact region. While the fit of an inner wheel 12 and small diameter step part 10a in a range corresponding to an outer diameter side of the uneven fitting structure M is forced to be non-close-fitted, the fit of the inner wheel 12 and the small diameter step part 10a in another range is forced to be close-fitted.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了提供能够消除螺母紧固作业的驱动轮的轴承装置，可以降低成本，可以抑制环向应力的产生并且可以防止轴承发生故障。解决方案：用于驱动轮的轴承装置是由轮毂轮10，双列滚动轴承20和等速万向接头30组成的单元，并且具有用于将轮毂轮10和安装在轮毂轮10的孔部65中的等速万向接头30中的外侧接头构件32的杆32b。轮毂轮10的一个突起或外侧接头构件32的杆32b和凹部其他构件与整个安装的接触区域紧密接触。虽然内轮12和小直径台阶部10a在与不均匀装配结构M的外径侧对应的范围内的配合被迫非紧密配合，但内轮12的配合和小直径另一范围内的踏板部分10a被迫紧密配合。版权所有（C）2009，JPO＆INPIT

67. 发明专利

JP2008128451A Bearing device for wheel 审中-公开
标题翻译：轴承轴承装置
公开(公告)号：JP2008128451A
公开(公告)日：2008-06-05
申请号：JP2006317387
申请日：2006-11-24
申请人： Ntn Corp , Ntn株式会社
发明人： YAMAUCHI KIYOSHIGE , SUGANUMA WASABURO
IPC分类号： F16C35/063 , B60B35/18 , F16C19/18 , F16C33/58 , F16C33/64 , F16C43/04
CPC分类号： Y02T10/86
摘要： PROBLEM TO BE SOLVED: To provide a bearing device for vehicle of a fourth generation structure, which is reduced in cost in addition to reduction in weight and size.
SOLUTION: In the bearing device for wheel of the fourth generation structure in which a hub wheel 1 and an outside joint member 10 are coupled so as to be torque-transmittable, a mortar-like recessed part 23 is formed with substantially a uniform thickness by forging on the inner circumference of an outer-side end part in conformation to the shape of the outer circumferential surface of the hub wheel 1. A female thread 8 is formed on the inner circumference of the hub wheel 1, and a fixing bolt 21 is screwed to this thread and fastened until the hub wheel 1 and the outside joint member 10 are laid in a butt state where a head part 21a abuts on the inner end surface of a shoulder part 15 of the outer joint member 10. Of double-row balls of six rows, the pitch circle diameter PCDi of the inner six rows of balls is set larger than the pitch circle diameter PCDo of the outer six rows of balls, and the number of balls of the inner six rows of balls is set larger than that of the outer six rows of balls.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种第四代结构的车辆用轴承装置，除了减轻重量和尺寸之外，还降低了成本。解决方案：在第四代结构的轮毂的轴承装置中，轮毂轮1和外侧接头构件10联接以便可转矩传递，砂浆状凹部23形成为基本上在与轮毂圈1的外周面的形状构成的外侧端部的内周上锻造均匀的厚度。内螺纹8形成在轮毂圈1的内周上，并且固定将螺栓21拧入该螺纹并固定，直到轮毂轮1和外侧接头构件10放置在头部21a抵接在外侧接头构件10的肩部15的内端面上的对接状态。六排双列球，内六排滚珠的节圆直径PCDi设定为大于外六排滚珠的节圆直径PCDo，内六排滚珠数为设置比外层大 x排球。版权所有（C）2008，JPO＆INPIT

68. 发明专利

JP2008024051A Bearing device for driving wheel 有权
标题翻译：用于驱动车轮的轴承装置
公开(公告)号：JP2008024051A
公开(公告)日：2008-02-07
申请号：JP2006196025
申请日：2006-07-18
申请人： Ntn Corp , Ntn株式会社
发明人： KAWAMURA HIROSHI , FUKUSHIMA SHIGEAKI , YAMAUCHI KIYOSHIGE , OZAWA HITOHIRO , UMEKIDA HIKARI
IPC分类号： B60B35/16 , B60B35/14 , F16C19/52 , F16C33/78 , F16C41/00 , F16D3/20
CPC分类号： B60B27/0005 , B60B27/0042 , B60B27/0068 , B60B27/0073 , B60B27/0094 , F16C33/7879 , F16C41/007 , F16C2326/02 , F16J15/326 , G01P3/443 , G01P3/446
摘要： PROBLEM TO BE SOLVED: To provide a bearing device for a driving wheel capable of improving assemble workability and being delivered to an automobile manufacturer as an axle module.
SOLUTION: In the bearing device for driving wheel having fourth generation structure, a hub wheel 1 and an outside coupling member 14 are integrally and plastically joined. A sensor 22 is fitted by being inserted into a mounting hole 21 provided so as to pass a knuckle N in the radial direction, and a pulser ring 23 is mounted on the outer peripheral surface of the outside coupling member 14 so as to face the sensor 22 through a predetermined radial clearance. The pulser ring 23 is composed of a support ring 24 formed in a circular shape from a steel plate by pressing, and a magnetic encoder 25 joined to the support ring 24. In the magnetic encoder 25, magnetic material powders is mixed into an elastomer, magnetic poles are magnetized alternately in the peripheral direction, and an outside diameter d of the magnetic encoder 25 is set to be a smaller diameter than the inside diameter D of the knuckle N.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够提高组装加工性的驱动轮的轴承装置，并且作为车轴组件被输送到汽车制造商。解决方案：在具有第四代结构的驱动轮的轴承装置中，轮毂轮1和外部联接构件14一体地并且塑性地接合。通过将传感器22插入安装孔21中，将安装孔21插入到径向方向上通过转向节N，并且将脉冲发生器环23安装在外侧联接构件14的外周面上，以面对传感器 22通过预定的径向间隙。脉冲发生器环23由通过压制从钢板形成为圆形的支撑环24和与支撑环24接合的磁性编码器25构成。在磁性编码器25中，将磁性材料粉末混合成弹性体，磁极在圆周方向交替磁化，磁编码器25的外径d设定为比转向节N的内径D小的直径。（C）2008，JPO＆INPIT

69. 发明专利

JP2007331457A Bearing device for wheel 有权
标题翻译：轴承轴承装置
公开(公告)号：JP2007331457A
公开(公告)日：2007-12-27
申请号：JP2006163303
申请日：2006-06-13
申请人： Ntn Corp , Ntn株式会社
发明人： KAWAMURA HIROSHI , FUKUSHIMA SHIGEAKI , YAMAUCHI KIYOSHIGE , OZAWA HITOHIRO , UMEKIDA HIKARI
IPC分类号： B60B35/14 , B60B35/18 , F16C19/18 , F16C35/063 , F16D3/20
CPC分类号： F16C35/06 , F16C19/184 , F16C19/527
摘要： PROBLEM TO BE SOLVED: To provide a bearing device for a wheel, capable of achieving weight reduction, compactness, and low cost.
SOLUTION: The bearing device for a wheel is provided with a hub ring 1, integrated with a wheel mounting flange 17 at one end part, and having a cylindrical small-diameter step part 1b axially extended from the wheel mounting flange 17, a bearing 2 for a wheel comprising a plurality of rows of rolling bearings, press-fitted with the small-diameter step part 1b through a prescribed tightening clearance, and a constant velocity universal joint 3 coupled with the hub ring 1 on the inside to be capable of transmitting torque, and separable through a screw means. The hub ring 1 is formed of a steel sheet by press work. The wheel mounting flange 17 is composed of a mounting part 17a extended from a base part 20 diametrically outward, and a protruded part 17b protruded from that by a specific depth in the axial direction. Surface-hardened serrations 16a are formed in a shaft part 16 of an outside joint member 10 of the constant velocity universal joint 3, and they are press-fitted to an inner circumferential surface of the hub ring 1 to bite it.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够实现轻量化，小型化，低成本的车轮用轴承装置。解决方案：用于车轮的轴承装置设置有毂环1，其在一端部与轮安装凸缘17成一体，并且具有从车轮安装凸缘17轴向延伸的圆柱形小直径台阶部分1b，用于包括多列滚动轴承的车轮轴承2，通过规定的紧固间隙与小直径台阶部件1b压配合，以及与轮毂环1在内侧连接的等速万向接头3 能够传递扭矩，并可通过螺丝装置分离。轮毂环1通过压力加工由钢板形成。车轮安装法兰17由从径向向外延伸的基部20的安装部分17a和从轴向方向上突出特定深度的突出部分17b组成。表面硬化锯齿16a形成在等速万向接头3的外侧接头部件10的轴部16中，并且压配合到轮毂环1的内周面上以咬合。版权所有（C）2008，JPO＆INPIT

70. 发明专利

JP2007255487A Joint assembly and axle module provided with the same 审中-公开
标题翻译：联合组件和轴组件提供
公开(公告)号：JP2007255487A
公开(公告)日：2007-10-04
申请号：JP2006078209
申请日：2006-03-22
申请人： Ntn Corp , Ntn株式会社
发明人： KAWAMURA HIROSHI , FUKUSHIMA SHIGEAKI , YAMAUCHI KIYOSHIGE , UMEKIDA HIKARI , OZAWA HITOHIRO
IPC分类号： F16D3/84 , B60B35/14 , F16D3/20
摘要： PROBLEM TO BE SOLVED: To provide a joint assembly protecting a pair of constant velocity universal joints and boots and preventing the constant velocity universal joint from tilting, and an axle module provided with the same.
SOLUTION: In the axle module provided with the fourth generation structure wheel bearing device rotatably supporting a wheel and plastically joining a hub wheel 6 and an outside joint member 7 as one unit, and the joint assembly 32 connected to the same, a unit cover 5 composed of heat-shrinkable film following an outer shell shape of the outside joint members 7, 25 and boots 17, 31 of the pair of constant velocity universal joints 1, 2, and the joint assembly 32 is joined as one unit by subjecting the unit cover 5 under predetermined temperature. Since an outer diameter of a fitting surface 10d of an external member 10 is formed larger than an outer diameter of the unit cover 5, assembly of the axle module to a knuckle is facilitated and assembly workability to a vehicle is improved.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供保护一对等速万向接头和靴子并防止等速万向接头倾斜的接头组件以及设置有等速万向接头的车桥模块。解决方案：在具有可旋转地支撑车轮并且将轮毂轮6和外侧接头构件7作为一个单元进行塑性连接的第四代结构轮轴承装置的轴模以及与其连接的接头组件32上由外接头构件7,25的外壳形状的热收缩膜构成的单元盖5和一对等速万向接头1,2和接头组件32的靴17,31通过使单元盖5在预定温度下进行。由于外部构件10的配合表面10d的外径形成为大于单元盖5的外径，因此轴组件到转向节的组装变得容易，并且提高了对车辆的组装操作性。版权所有（C）2008，JPO＆INPIT

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