公开(公告)号：JPH10130629A

公开(公告)日：1998-05-19

申请号：JP30550696

申请日：1996-11-01

Applicant: NISSHIN SPINNING ,  TOYOTA MOTOR CORP

Inventor： SANO YOSHINORI ,  TSUGAWA KAZUO ,  SHISHIDO YUJI ,  OZAKI YOSHINORI ,  ICHIKAWA SHIGERU ,  GOMI MIKIO ,  NISHIYAMA KEIICHI

IPC: F16D69/02 ,  C08J5/14 ,  C09K3/14

Abstract: PROBLEM TO BE SOLVED: To obtain a friction material which comprises a filler component and a binder component contg. a fiber component and is excellent in stability of braking performance even when water is present on the surface, hardly causing an abnormal sound, by using, as at least a part of the fiber component, potassium titanate fibers which allow only a small amt. of potassium to dissolve out into 25 deg.C water. SOLUTION: Only potassium titanate fibers which allow potassium in an amt. of 0.1wt.% or lower (based on the total amt. of potassium titanate) to dissolve out into 25 deg.C water is used here. Conventional potassium titanate fibers allow about 1wt.% potassium to dissolve out, and when water is attached, potassium dissolves out into and reacts with water to form a film of hydrated titania, which adversely affects the stability of braking preformance. Potassium hexatitante or octatitanate fibers are used as the potassium titanate fibers. The binder component comprises the fiber component and a thermosetting resin (e.g. a phenol resin). Graphite, barium sulfate, etc., are used as the filler component.

公开(公告)号：JPH10130630A

公开(公告)日：1998-05-19

申请号：JP30550796

申请日：1996-11-01

Applicant: NISSHIN SPINNING ,  TOYOTA MOTOR CORP

Inventor： SANO YOSHINORI ,  TSUGAWA KAZUO ,  SHISHIDO YUJI ,  OZAKI YOSHINORI ,  ICHIKAWA SHIGERU ,  GOMI MIKIO ,  NISHIYAMA KEIICHI

IPC: F16D69/02 ,  C08J5/14 ,  C09K3/14

Abstract: PROBLEM TO BE SOLVED: To obtain a friction material which is excellent in stability of braking performance and hardly causes abnormal sound even when water is present on the surface by incorporating potassium titanate fibers thermally treated at 300 deg.C or higher as at least a part of a fiber component into a friction mate rial comprising a filler component and a binder component contg. the fiber component. SOLUTION: The thermal treatment is performed at 300 deg.C or higher, pref. 300-400 deg.C, for 1-8hr and may be carried out after molding the friction material. The treatment is considered to separate hydrophilic OH groups from potassium titanate to render the molecular terminals hydrophobic. Potassium hexatitante fibers or potassium octatitanate fibers are used as the potassium titanate fibers. The binder component comprises the fiber component and a thermosetting resin (e.g. a phenol resin, a urea resin, a melamine resin, or a modification of these resins). Graphite, barium sulfate, calcium carbonate, etc., are used as the filler component.

公开(公告)号：JPH10121033A

公开(公告)日：1998-05-12

申请号：JP29731996

申请日：1996-10-18

Applicant: NISSHIN SPINNING ,  TOYOTA MOTOR CORP

Inventor： SANO YOSHINORI ,  TSUGAWA KAZUO ,  SHISHIDO YUJI ,  OZAKI YOSHINORI ,  ICHIKAWA SHIGERU ,  GOMI MIKIO ,  NISHIYAMA KEIICHI

IPC: F16D69/02 ,  C09K3/14

Abstract: PROBLEM TO BE SOLVED: To provide a friction material which can show excellent braking effectiveness and does not produce any foreign sound even when its surface is wetted with water upon e.g. automobile washing and is a friction material not suffering from difficulties in prior art and containing potassium titanate fibers excellent in fading resistance. SOLUTION: This material comprises a fiber component, a binder component and a filler component. The fiber component at least partially consists of potassium titanate fibers having a fiber length of 1μm to 1mm and a fiber diameter of 0.2μm to 50μm and nonfibrilated aramid fibers having a fiber length of 0.5-1mm and a fiber diameter of 1-20μm or at least partially consists of potassium titanate fibers having a fiber length of 1μm to 1mm and a fiber diameter of 0.2-50μm and fibrilated aramid fibers having a fiber length of 0.5-6mm and a fiber diameter of 1-20μm.

公开(公告)号：JP2010053926A

公开(公告)日：2010-03-11

申请号：JP2008218297

申请日：2008-08-27

Applicant: Toyota Motor Corp ,  トヨタ自動車株式会社

Inventor： ICHIKAWA SHIGERU

IPC: F16D65/12

Abstract: PROBLEM TO BE SOLVED: To provide a disc brake rotor which improves corrosion resistance and wear resistance.
SOLUTION: In the disc brake rotor 1, a surface layer 12, which uses an Fe-C-N-based compound as its main material and contains dispersed hard materials harder than the cast iron, is formed on the surface of a base material 11 made of cast iron.
COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：提供一种提高耐腐蚀性和耐磨性的盘式制动器转子。 解决方案：在盘式制动转子1中，在基体材料的表面上形成表面层12，其以Fe-CN系化合物为主体，含有比铸铁硬的分散的硬质材料 11由铸铁制成。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2006089340A

公开(公告)日：2006-04-06

申请号：JP2004277977

申请日：2004-09-24

Applicant: Toyota Motor Corp ,  トヨタ自動車株式会社

Inventor： ICHIKAWA SHIGERU ,  KAMIYA SUMIO ,  YAMADA KOJI ,  SASAKI HIROTADA

IPC: C04B35/83 ,  F16D69/02

CPC classification number: C04B35/83 ,  B32B2315/02 ,  C04B2235/96 ,  C04B2237/385 ,  C04B2237/584 ,  F16D69/023

Abstract: PROBLEM TO BE SOLVED: To provide a carbon composite material having a high, stable coefficient of friction even by a small number of times of braking, having low abrasion losses, and suitable for a brake material.
SOLUTION: A brake pad 10 is prepared by integrating a first layer 11 comprising a carbon fiber woven fabric 12 as a two dimensional carbon fiber material and a second layer 15 comprising a short carbon fiber material 16 by laminating, heating and pressurizing these layers. The first layer 11 is preferably formed by impregnating the carbon fiber woven fabric 12 with a liquid resin and then carbonizing the impregnated woven fabric. The second layer 15 is preferably formed by mixing a short carbon fiber material 16, a resin powder, a silica powder or a silicon powder and carbonizing the mixture. A phenol resin which is a thermosetting resin is used as the liquid resin and the resin powder. The first layer and the second layer is preferably formed together with a resin layer composed of a thermosetting resin and then carbonized for integration.
COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：提供具有高的，稳定的摩擦系数的碳复合材料，即使是少量的制动，具有低的磨损损失，并且适用于制动材料。 解决方案：通过将包括作为二维碳纤维材料的碳纤维织物12的第一层11和包括短碳纤维材料16的第二层15通过层压，加热和加压这些来制备制动片10 层。 第一层11优选通过用液体树脂浸渍碳纤维织物12然后将浸渍的织物碳化来形成。 第二层15优选通过混合短碳纤维材料16，树脂粉末，二氧化硅粉末或硅粉末并使混合物碳化来形成。 使用作为热固性树脂的酚醛树脂作为液体树脂和树脂粉末。 第一层和第二层优选与由热固性树脂组成的树脂层一起形成，然后碳化以进行一体化。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2000088015A

公开(公告)日：2000-03-28

申请号：JP26496298

申请日：1998-09-18

Applicant: TOYOTA MOTOR CORP

Inventor： ICHIKAWA SHIGERU

IPC: F16D51/24 ,  F16D65/08 ,  F16D65/54 ,  F16D69/00 ,  F16D69/04

Abstract: PROBLEM TO BE SOLVED: To provide a drum brake device which can reduce effectively occurrence of a breaking squeak. SOLUTION: A drum brake device 10 has a rim 18, to which a bonding agent 60 for adhering a brake lining 24 is applied at certain intervals. If a first brake shoe 16 vibrates in resonance to a braking squeak, a friction is generated between the rim 18 and lining 24 in the portions free of application of the bonding agent, and by this friction the vibratory energy is converted into thermal energy to cause reduction of the vibration. Because the bonding agent application area is made different about the boundary lying approximately in the center of the rim 18 which corresponds to the node of the secondary vibration as the chief vibration in resonance, the rate of vibratory-thermal conversion of the energy differs between one end and the other about approximate the center of the rim 18 as boundary. Therefore, the secondary vibration becomes irregular, and the braking squeak can be reduced effectively.

公开(公告)号：JPH05157133A

公开(公告)日：1993-06-22

申请号：JP32061691

申请日：1991-12-04

Applicant: TOYOTA MOTOR CORP

Inventor： ABE KENJI ,  ICHIKAWA SHIGERU

IPC: F16D65/092 ,  F16D65/00

Abstract: PURPOSE:To prevent or suppress the generation of brake noise owing to a moisture content by absorbing a moisture content adhered on the surface of a friction pad, in a brake pad for a disk brake having a back plate in which a plurality of through-holes are formed, and the friction pad adhered on the surface of the back plate. CONSTITUTION:A brake pad for a disk brake is provided with a back plate 11 in which a plurality of through-holes 11b are formed and a brake pad for a disk brake having a friction pad 12 adhered on the surface of the back plate 11. A water absorptive means 13 is mounted in each through-hole 11b of the back plate 11 and a moisture content adhered on the surface of the friction pad 12 is adsorbed by the water absorbing means 13 through continuous pores in the pad 12.

公开(公告)号：JPS6479432A

公开(公告)日：1989-03-24

申请号：JP23578687

申请日：1987-09-19

Applicant: TOYOTA MOTOR CORP

Inventor： HAYASHI KEIJI ,  INOUE KOICHI ,  ICHIKAWA SHIGERU

IPC: F16D65/12 ,  C22C37/00

Abstract: PURPOSE:To improve the extent of abrasion resistance by manufacturing a disk brake rotor with cast iron made up of dispersing ZrSiO4 or the like to be mixed in a disk brake pad in an Fe-C structure. CONSTITUTION:Cast iron of Fe-3.3(wt.%)C is melted and cooled as being stirred up and it is kept somewhere about 1200 degrees. A globular grain of ZrSiO4 of 7 in Mohs' hardness and about 20mum in grain size just the same as those mixed in pad material is put in molten metal as much as about 3%wt. and, after being stirred up until it comes to uniformity, molded and thus a disk brake rotor consisting of such a material that has a structure made up of dispersing spheroidal graphite 2 and hard grains 3 in pearlite 1 is manufactured. Since the hard grains are dispersed in the cast iron of the rotor, abrasion resistance is improved.

公开(公告)号：JPS6474332A

公开(公告)日：1989-03-20

申请号：JP23039687

申请日：1987-09-14

Applicant: TOYOTA MOTOR CORP

Inventor： HAYASHI KEIJI ,  INOUE KOICHI ,  ICHIKAWA SHIGERU

IPC: F16D69/00

Abstract: PURPOSE:To prevent removal of a base material of steel fibers, improve abrasion resistance, and improve the strength of the pad in the title by using network or multi-branching steel fibers for the base material. CONSTITUTION:A net is manufactured of steel fibers 11 of material of SUM22 of diameter of about 60mu, this is cut to be a net chip of a rectangle of about 5X15mm to be used for a base material, and this is combined with other components in a predetermined composition to manufacture a disc brake pad. As a result, the steel fibers 11 give catches in the pad to make it difficult to pull them, and because the steel fibers 11 themselves have connecting force, it becomes more difficult to pull them, so removal of the base material is prevented. Abrasion resistance, which is of importance for a brake pad, can thus be improved, and the strength of the pad itself can also be improved.

公开(公告)号：JP2010249160A

公开(公告)日：2010-11-04

申请号：JP2009096426

申请日：2009-04-10

Applicant: Toyota Motor Corp ,  トヨタ自動車株式会社

Inventor： ICHIKAWA SHIGERU ,  HIBINO MICHIO

IPC: F16D13/69

Abstract: PROBLEM TO BE SOLVED: To provide a clutch mechanism for reducing drag torque by a simple structure.
SOLUTION: The clutch mechanism 1 includes a fly wheel 12 arranged in a crankshaft 11, a clutch disk 14 arranged in an input shaft 13 relatively rotationally to the fly wheel 12, and a pressure plate 17 pressing the clutch disk 14 to the fly wheel 12. In the fly wheel 12, an air flow port 34, which communicates a jetting port 32 opened in a frictional engagement face 31 with an introduction port 33 opened on the inside diameter side beyond the frictional engagement face 31, is formed inside. An air flow port 44 communicating a jetting port 42 opened in a frictional engagement face 41 with an introduction port 43 opened on the inside diameter side beyond the frictional engagement face 41 is formed inside a pressure plate 17.
COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供一种通过简单结构减小拖曳扭矩的离合器机构。 解决方案：离合器机构1包括布置在曲轴11中的飞轮12，相对于飞轮12布置在输入轴13中的离合器盘14和将离合器盘14按压到 在飞轮12中，将在摩擦接合面31中开口的喷射口32与在摩擦接合面31上方的内径侧开口的引入口33连通的气流口34形成在内侧 。 在压力板17的内部形成有使在摩擦接合面41上开口的喷射口42与在摩擦接合面41的内径侧开口的导入口43连通的气流口44。 2011年，JPO＆INPIT