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1. 发明专利

JPH1182514A SLIDING MATERIAL 失效
公开(公告)号：JPH1182514A
公开(公告)日：1999-03-26
申请号：JP26785897
申请日：1997-09-12
申请人： TAIHO KOGYO CO LTD
发明人： ITO KATSUTO , TAKEWAKA MIKIO , KOKAYU MOTOYUKI , HIBINO MITSURU
IPC分类号： F16C33/12 , C23C18/31 , C23C18/52
摘要： PROBLEM TO BE SOLVED: To obtain a sliding property with an excellent initial conformable property, and an excellent abrasion-proof property. SOLUTION: This sliding material 1 furnishes a Cu plating layer 3 formed on a base member, and an Sn or Zn plating layer 4 or an alloy plating layer of them. Such a plating layer 4 is soft and has an excellent conformable property. And when a friction heating is generated by sliding with the opponent material, the Cu plating layer 3 and the plating layer 4 generate a diffusion reaction by the friction heating, and an alloy layer including the alloy (bronze) of the Cu and the Sn, or the alloy (brass) of the Cu and the Zn is formed between both layers. Consequently, since an alloy layer 5 of the bronze or/and the brass is exposed in the sliding surface when the abrasion of the plating layer 4 progresses, a sliding property with an excellent abrasion-proof property can be obtained by the alloy layer 5.

2. 发明专利

JP2001041266A END BEARING 失效
公开(公告)号：JP2001041266A
公开(公告)日：2001-02-13
申请号：JP21431399
申请日：1999-07-28
申请人： TAIHO KOGYO CO LTD
发明人： ITO KATSUTO , HATANAKA MASANORI , KOKAYU MOTOYUKI
IPC分类号： F16D41/07
摘要： PROBLEM TO BE SOLVED: To manufacture an end bearing at low cost without using Cu or Pb by composing a body portion of a press worked steel plate, and applying Sn plating with a specific thickness to the inner surface or proximity of an inner peripheral cylindrical portion and the other part of the body portion. SOLUTION: This end bearing 1 includes a body portion 5 comprising a ring-like radial direction portion 2 and an inner peripheral cylindrical portion 3 and an outer peripheral cylindrical portion 4 respectively axially extending from the inner periphery and the outer periphery of this radial direction portion 2, and has a U-shaped cross section. A steel plate such as SPCC of the body portion 5 is press worked, Sn plating 6 is applied only to the inner surface of the inner peripheral cylindrical portion 3, and then Sn plating 7 is applied to the whole. Total thickness of the Sn platings 6, 7 on the inner surface of the inner peripheral cylindrical portion 3 is set in a range between 5 μm and 25 μm, and the thickness of the Sn plating 7 in the other part is less than 3 μm. Therefore, one kind of Sn platings 6, 7 are used, so that manufacture is allowed at low cost.

3. 发明专利

JPH0953642A BEARING DEVICE AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH0953642A
公开(公告)日：1997-02-25
申请号：JP22714695
申请日：1995-08-11
申请人： TAIHO KOGYO CO LTD
发明人： KOKAYU MOTOYUKI , HATANAKA MASANORI , YASUDA TOMOYOSHI , NIIMI HIDEKI , NARITA HIROSHI
IPC分类号： F16C33/14 , F16C35/02
摘要： PROBLEM TO BE SOLVED: To prevent an increase in thickness of a synthetic resin layer as small as possible even in use under a high temperature condition, by applying annealing to a cylindrical bearing formed by bending a back plate and the synthetic resin layer. SOLUTION: A plate-shaped material for manufacturing a cylindrical bearing has a synthetic resin layer 5 formed by sintering copper powder 3 in a steel back plate 2 and its surface to be impregnated with a fluororesin 4. After the plate-shaped material 1 is cut into required width and length, the material is cylindrically bent with the synthetic resin layer 5 in the inside, and both the end parts butt to each other, so that a cylindrical bearing 7 with the internal peripheral surface serving as a bearing surface 6 is manufactured. Thereafter, annealing is applied to the cylindrical bearing 7, and when it is manufactured by bending the plate-shaped material 1, residual stress in the synthetic resin layer 5 is released. On the other hand, after a bar-shaped material 11 is cut into prescribed length, a housing 14 having a hole 12 is formed by forging, an internal peripheral surface of the hole 12 is cut, and the cylindrical bearing 7 is fixedly press fitted to a work surface 12a of the hole.

4. 发明专利

JP2002220631A SINTERED MATERIAL OF PHOSPHOR BRONZE COMPOSITE 失效
公开(公告)号：JP2002220631A
公开(公告)日：2002-08-09
申请号：JP2001015348
申请日：2001-01-24
申请人： TAIHO KOGYO CO LTD
发明人： KAMIYA YASUNORI , SATO HIDETOMO , TSUZUKI TSUNEYA , KOBAYASHI HIROAKI , KAWAGOE KIMIO , KOKAYU MOTOYUKI
IPC分类号： C22C32/00 , B22F5/00 , B22F7/08 , C22C1/04 , C22C1/05 , C22C1/10 , C22C9/02
摘要： PROBLEM TO BE SOLVED: To improve sliding characteristics of phosphor bronze sintered on a back metal. SOLUTION: The sintered material of phosphor bronze composite comprises including 0.01-0.5% P and 3-10% Sn as essential elements, and (a) 1% or less Pb, 1% or less Bi, 2% or less Ag and/or 8% or less Ni, as needed, and that grain sizes equivalent to an average circle are 5-50 μm. A method for enhancing wear resistance comprises adding Fe3P, AlN, CBN, TiC, Al2O3, AlN, NiB, and/or SiC of 10 mass parts or less, against a phosphor bronze alloy of 100 mass parts, as a hard substance.

5. 发明专利

JPH0953643A BEARING DEVICE AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH0953643A
公开(公告)日：1997-02-25
申请号：JP22856295
申请日：1995-08-14
申请人： TAIHO KOGYO CO LTD
发明人： ICHIKAWA SHIGEO , HIBINO MITSURU , KOKAYU MOTOYUKI , YASUDA TOMOYOSHI
IPC分类号： F16C33/14 , F16C35/02
摘要： PROBLEM TO BE SOLVED: To maintain excellent surface accuracy of a bearing by forming a long groove along an axial direction in an internal surface of a hole of a housing, forming an angle being cross each side wall of this long groove with an internal peripheral surface of the hole, respectively in a specific value or more, so as to prevent that a surface pressure in a contact part between an angular part and a cylindrical bearing is excessively increased to generate local contact. SOLUTION: In the case of press fitting a cylindrical bearing 3 into a hole 2 of a housing 1, generation of contact unevenness can be suppressed by press fitting the cylindrical bearing 3 into the hole 2 so as to press open a long groove 7, even when a press fit margin between the cylindrical bearing 3 and the hole 2 is a little dispersed, even particularly the press fit margin is a little increased. In the case of press fitting, galling is difficult to be generated, by forming a circular arc surface 8 between each side wall 7a of the long groove 7 and an internal peripheral surface of the hole 2, and the cylindrical bearing 3 can be smoothly press fitted into the hole 2. An angle θ, being cross each side wall 7a of the long groove 7 with an internal peripheral surface of the hole 2, is formed at 150 deg. or more, local contact can be prevented.

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