公开(公告)号：US20040112695A1

公开(公告)日：2004-06-17

申请号：US10729448

申请日：2003-12-05

Applicant: Daido Metal Company Ltd.

Inventor： Takahiro Niwa ,  Takeshi Shindo ,  Kotaro Kashiyama

IPC: F16F009/36

CPC classification number: F16F9/366

Abstract: The invention provides a hydraulic shock absorber which can satisfy a demand of weight saving for a rod guide and can reduce a manufacturing cost. Since a rod guide is constituted by a press molded product formed by press molding a sheet member, and at least a sliding surface of the rod guide with respect to a piston rod is coated with a sliding synthetic resin layer, it is possible to achieve a widely weight saving in comparison with the case of using a metal sintered housing, it is possible to secure a sufficient rigidity in comparison with the case that an entire of the rod guide is formed by a synthetic resin for sliding, and it is possible to achieve a further weight saving in comparison with the structure in which a composite sliding member is pressed.

Abstract translation: 本发明提供一种液压减震器，其可以满足杆导向器的重量节省的要求，并且可以降低制造成本。 由于杆引导件由通过压制成型片材而形成的压制成型品构成，并且杆导向件的至少相对于活塞杆的滑动面被涂覆有滑动合成树脂层，因此可以实现 与使用金属烧结体的情况相比，能够节省大量的重量，与通过用于滑动的合成树脂形成的整个杆引导件的情况相比，可以确保足够的刚性，并且可以实现 与复合滑动构件被按压的结构相比，进一步减轻了重量。

公开(公告)号：US20040180796A1

公开(公告)日：2004-09-16

申请号：US10797335

申请日：2004-03-10

Applicant: Daido Metal Company Ltd.

Inventor： Hideki Iwata ,  Takeshi Shindo ,  Kotaro Kashiyama

IPC: C10M13/04

CPC classification number: C10M103/00 ,  C10M125/02 ,  C10M147/00 ,  C10M2201/041 ,  C10M2201/0413 ,  C10M2201/066 ,  C10M2201/0663 ,  C10M2213/062 ,  C10N2240/30 ,  C10N2250/18 ,  F04B27/1054 ,  F05C2201/0475 ,  F05C2201/903 ,  F05C2225/04 ,  F05C2251/14 ,  F05C2253/12 ,  F05C2253/20

Abstract: An object of the present invention is to provide a sliding member which can slide for a longer period of time even in a dry state. In the present invention, the sliding member is provided with a sliding layer 3 containing 1 to 20 vol % of bismuth powder and/or bismuth alloy powder, 20 to 60 vol % of metal powder, and 1 to 20 vol % of a solid lubricant, the sum thereof being not more than 70 vol %, and the balance being a thermosetting resin. Therefore, a large quantity of metal powder and bismuth powder and/or bismuth alloy powder are mixed with the thermosetting resin in the sliding layer 3, so that the thermal conductivity in the sliding layer 3 is improved, and hence heat does not accumulate in a sliding layer portion, by which seizure can be prevented.

Abstract translation: 本发明的目的是提供即使在干燥状态下也能够更长时间地滑动的滑动构件。 在本发明中，滑动部件设置有含有1〜20体积％的铋粉末和/或铋合金粉末，20〜60体积％的金属粉末和1〜20体积％的固体润滑剂的滑动层3 ，其总和不大于70体积％，余量为热固性树脂。 因此，大量的金属粉末和铋粉末和/或铋合金粉末与滑动层3中的热固性树脂混合，使得滑动层3中的导热性提高，因此热量不会积聚在 滑动层部分，可以防止发作。

公开(公告)号：US20040058828A1

公开(公告)日：2004-03-25

申请号：US10646208

申请日：2003-08-22

Applicant: Daido Metal Company Ltd.

Inventor： Hideki Iwata ,  Takahiro Niwa ,  Takeshi Shindo ,  Kotaro Kashiyama

IPC: C10M161/00

CPC classification number: F16C33/201 ,  C10M111/04 ,  C10M125/02 ,  C10M2201/05 ,  C10M2201/066 ,  C10M2201/084 ,  C10M2213/06 ,  C10M2213/062 ,  C10N2210/02 ,  C10N2210/05 ,  C10N2220/02 ,  C10N2220/021 ,  C10N2230/06 ,  C10N2240/06 ,  C10N2250/18

Abstract: In prior art, the wear resistance and frictional properties of a sliding member are improved by adding bismuth, an alkaline earth metal salt or the like, but not lead, to a polytetrafluoroethylene used as a base resin, in view of the undesirable influences of lead on the environment. However, a further improved wear resistance at a high PV value has been desirable. In the present invention, a sliding member having excellent wear resistance and frictional properties even when used at a high PV value can be obtained by using a thermosetting resin as a base resin in a proportion of 50 to 80 vol % and adding thereto a PTFE with a molecular weight of 3,000,000 or more in a proportion of 10 to 40 vol % and bismuth and/or a bismuth alloy in a proportion of 1 to 20 vol %.

Abstract translation: 在现有技术中，考虑到铅的不良影响，通过向用作基础树脂的聚四氟乙烯中添加铋，碱土金属盐等而不是引线将滑动构件的耐磨性和摩擦性提高 对环境。 然而，在PV值高的情况下，耐磨性进一步提高是理想的。 在本发明中，即使以高PV值使用时，耐磨性和摩擦性也优异的滑动部件可以通过使用热固性树脂作为基础树脂，比例为50〜80体积％，并且向其中加入具有 比例为10〜40体积％的分子量为3,000,000以上，铋和/或铋合金为1〜20体积％。

公开(公告)号：US20040166341A1

公开(公告)日：2004-08-26

申请号：US10783868

申请日：2004-02-20

Applicant: Daido Metal Company Ltd.

Inventor： Hideki Iwata ,  Takuya Tanaka ,  Weixing Zhong ,  Takeshi Shindo ,  Kotaro Kashiyama

IPC: B32B015/04

CPC classification number: F16C33/201 ,  C08G73/18 ,  C09D179/04 ,  C10M169/04 ,  C10M2201/041 ,  C10M2201/066 ,  C10M2213/062 ,  C10M2217/0403 ,  C10N2230/06 ,  C10N2240/02 ,  C10N2240/30 ,  C23C22/12 ,  C23C28/00 ,  F04B27/1054 ,  Y10T428/31678 ,  Y10T428/31721 ,  C08K3/30 ,  C08L27/18

Abstract: An object of the present invention is to provide a sliding member which can slide for a longer period of time even in a dry state. In the present invention, sliding layers 3 are provided on the surfaces of a base material 2, and the sliding layer 3 contains polybenzimidazole (PBI) and 1 to 70 vol % of a solid lubricant. Since PBI, which is a thermoplastic resin, has higher heat resistance and also has higher material strength than PAI, PI, and EP, which are the conventionally used thermosetting resins, the wear resistance and the anti-seizure property can be improved and a decrease in material strength caused by high-temperature atmosphere, heat generation at the time of sliding, etc. can be restrained. Furthermore, the initial conformability can be improved because of high elongation percentage. Also, since the sliding layer contains the solid lubricant, the coefficient of friction can be decreased, and hence the anti-seizure property can be enhanced.

Abstract translation: 本发明的目的是提供即使在干燥状态下也能够更长时间地滑动的滑动构件。 在本发明中，滑动层3设置在基材2的表面，滑动层3含有聚苯并咪唑（PBI）和1〜70体积％的固体润滑剂。 由于作为热塑性树脂的PBI具有比作为常规使用的热固性树脂的PAI，PI和EP更高的耐热性并且还具有更高的材料强度，因此可以改善耐磨性和抗咬合性，并且降低 在由高温气氛引起的材料强度下，可以抑制滑动时的发热等。 此外，由于高伸长率，可以提高初始的适应性。 此外，由于滑动层包含固体润滑剂，所以可以降低摩擦系数，因此可以提高抗咬合性能。

公开(公告)号：US20040126039A1

公开(公告)日：2004-07-01

申请号：US10712070

申请日：2003-11-13

Applicant: Daido Metal Company Ltd.

Inventor： Kotaro Kashiyama ,  Hajime Kachi ,  Takahiro Niwa

IPC: F16C023/04 ,  F16C029/02

CPC classification number: F16C29/02 ,  F16C29/001 ,  F16C33/04

Abstract: In order to provide durable shock absorbers, a bearing to bear a piston rod is enhanced in wear resistance and made low in friction. A cylindrical-shaped bearing for reciprocatory sliding, to bear a piston rod comprises lengthy inclined portions and a short parallel portion on an inner-peripheral surface of the bearing.

Abstract translation: 为了提供耐用的减震器，承受活塞杆的轴承的耐磨性提高并且摩擦力低。 用于往复滑动的圆柱形轴承，用于承载活塞杆，其包括长的倾斜部分和在轴承的内周表面上的短平行部分。

公开(公告)号：US20040081755A1

公开(公告)日：2004-04-29

申请号：US10691521

申请日：2003-10-24

Applicant: Daido Metal Company Ltd.

Inventor： Hideki Iwata ,  Takahiro Niwa ,  Takeshi Shindo ,  Kotaro Kashiyama

IPC: B05D007/22

CPC classification number: F16C33/20 ,  B05D3/0254 ,  B05D3/12 ,  B05D7/22 ,  F16C33/206 ,  F16C33/208 ,  F16C2208/32 ,  F16C2208/36 ,  F16C2220/20 ,  F16C2240/06 ,  F16C2240/54 ,  F16C2240/60

Abstract: The invention provides a method of processing an inner surface of a bearing having a cylindrical shape which bearing includes a resin layer composed mainly of a synthetic resin as the inner surface, the method improving roughness of the inner surface and dimensional accuracy of an inner diameter of the bearing without cutting the inner surface. According to the method, the bearing is press-fitted into a jig and then the jig is mounted on a chuck. Next, a mandrel having a cylindrical bar shape is inserted into an inner diameter portion of the bearing and then the mandrel is heated by a heater up to 250null C., for example. The mandrel is expanded due to thermal expansion by the heating so that the inner surface, i.e., a surface of the resin layer is pressed by a press face of a peripheral surface of the mandrel.

Abstract translation: 本发明提供了一种处理圆柱形轴承的内表面的方法，该轴承包括主要由合成树脂作为内表面组成的树脂层，改善内表面的粗糙度和内径的尺寸精度的方法 轴承不切割内表面。 根据该方法，将轴承压配合到夹具中，然后将夹具安装在卡盘上。 接下来，将具有圆柱形杆的心轴插入到轴承的内径部分中，然后例如通过加热器将心轴加热至250℃。 心轴由于通过加热的热膨胀而膨胀，使得内表面，即树脂层的表面被心轴的外周表面的压力表面挤压。

公开(公告)号：US20020053495A1

公开(公告)日：2002-05-09

申请号：US09986335

申请日：2001-11-08

Applicant: DAIDO METAL COMPANY LTD.

Inventor： Hajime Kachi ,  Kotaro Kashiyama

IPC: F16F009/36

CPC classification number: F16F9/3242 ,  F16F9/585

Abstract: In a hydraulic shock-absorber comprising a cylinder, a piston rod provided with a rebound stopper secured thereto, and a rod guide provided at an end of said cylinder which rod guide butts against the rebound stopper at an extension stroke end of the piston rod, the rod guide is formed of a plate and comprises, at the location of butting against the rebound stopper, a butting planar portion extending radially of the cylinder from a lower end of the inner cylindrical portion against which butting planar portion the rebound stopper butts, and a butting slant portion extending downward obliquely toward the cylinder from an outer end of the butting planar portion against which butting slant portion an radially outer portion of the rebound stopper butts, thereby enabling the rod guide to be prevented from being deformed and also allowing the piston rod to always slide smoothly.

Abstract translation: 在包括气缸的液压减震器中，设置有固定到其上的回弹止动件的活塞杆和设置在所述气缸端部的杆引导件，杆引导件在活塞杆的延伸行程端处抵靠回弹止动件， 杆导向件由板形成，并且在抵靠反弹止动器的位置处包括从内筒部的下端部向圆周方向延伸的对接平面部，反弹止挡件抵接于该对接平面部，以及 从对接平面部分的外端向斜下方朝着圆筒向下延伸的对接倾斜部分，反弹挡块的径向外部的对接倾斜部分抵靠着对接平板部分，从而能够防止杆导向件变形，并且还允许活塞 杆总是顺利滑动。