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71. 发明专利

JP2001194269A TRACTION TESTING METHOD AND ITS DEVICE 失效
公开(公告)号：JP2001194269A
公开(公告)日：2001-07-19
申请号：JP2000106370
申请日：2000-04-07
申请人： TOYOTA MOTOR CORP , AUTOMAX KK
发明人： SUZUKI ATSUSHI , KUBONO KAZUSHIGE , ITO HIDEKAZU , TERADA SEIICHI , TODA SATOSHI , WATANABE MANABU , NARAHARA KAZUHIRO , TAKAI HITOSHI
IPC分类号： G01M13/02
摘要： PROBLEM TO BE SOLVED: To provide a method and device capable of measuring traction characteristics between a disk test piece and cylindrical test piece. SOLUTION: In the traction testing method, the outer circumferential surfaces of cylindrical test pieces 15 and 115 are brought into contact with the surface that intersects the axes of disk test pieces 25 and 125 at right angles or with their toroidal surfaces, and load and a test oil are provided for contact parts 80 and 180. Then the cylindrical test pieces 15 and 115 and disk test pieces 25 and 125 are brought into rolling/sliding contact to measure traction. In the traction testing device, the rotating shafts 14, 114, 24, and 124 of fist drive units 10 and 110 to hold the cylindrical test pieces 15 and 115 and second drive units 20 and 120 to support the disk test pieces 25 and 125 intersect one another. The contact angles between the cylindrical test pieces 15 and 115 and disk test pieces 25 and 125 are adjustable and continuously adjustable.

72. 发明专利

JP2000239682A TRACTION DRIVE FLUID 失效
公开(公告)号：JP2000239682A
公开(公告)日：2000-09-05
申请号：JP4410699
申请日：1999-02-23
申请人： TONEN CORP , TOYOTA MOTOR CORP
发明人： UMEMOTO NOBORU , YOSHIMURA SHIGEHIKO , KURIBAYASHI TOSHIAKI , SUZUKI ATSUSHI , KUBONO KAZUSHIGE , UEDA FUMIO
IPC分类号： C10M105/00 , C10M111/04 , C10N20/00 , C10N20/04 , C10N30/00 , C10N30/02 , C10N40/04
摘要： PROBLEM TO BE SOLVED: To obtain a traction drive fluid which has an excellent low- temperature flowability, a high flash point, and a high traction coefficient and is practically excellent by compounding 2,4-dicyclohexyl-2-methylpentane with cyclohexyl cyclohexanecarboxylate or a hydrogenated cyclopentadiene oligomer. SOLUTION: This fluid comprises 45-70 wt.% first base oil comprising 2,4- dicylohexyl-2-methylpentane and 30-55 wt.% second base oil comprising at least either cyclohexyl cyclohexanecarboxylate or hydrogenated cyclopentadiene oligomer having an average mol.wt. of 190-220. Preferably, the fluid has a traction coefficient of 0.06 or higher, a flash point of 150 deg.C or higher, and a viscosity at -40 deg.C of 60 Pa.s or lower. The adaptability of the fluid to an oil seal rubber can be improved by the addition of a suitable amount of polybutene having an average mol.wt. of 300-3,500, as the third base oil.

73. 发明专利

JPH1163178A LUBRICATING DEVICE FOR TRANSMISSION 失效
公开(公告)号：JPH1163178A
公开(公告)日：1999-03-05
申请号：JP3124198
申请日：1998-02-13
申请人： TOYOTA MOTOR CORP
发明人： KUBONO KAZUSHIGE , ISHIDA TETSUYA , SUZUKI ATSUSHI
IPC分类号： B60R17/00 , F16H57/04 , F16N39/00
摘要： PROBLEM TO BE SOLVED: To ensure viscosity at the time of a high temperature of a fluid lubricating oil as well as ensuring fluidity at the time of a low temperature. SOLUTION: At the time of a high temperature, a low boiling point and low viscosity oil in a mixed fluid lubricating oil 7 in a transmission main casing 1 is gasified, and is moved to a transmission auxiliary casing 2 through a gas passage 8. A gaseous low boiling point and low viscosity oil in the transmission auxiliary casing 2 during moving is liquidized through a cooling pipe 3. At this time, a thermostat 6 is closed, the low boiling point and low viscosity oil in the transmission auxiliary casing 2 is not moved to the transmission main casing 1 through a liquid passage 5. Viscosity of the fluid lubricating oil 7 in the transmission main casing 1 s appropriately ensured, since the rate of the high boiling point and high viscosity oil is increased. At the time of a low temperature, the thermostat 6 is opened. The low boiling point and low viscosity oil in the transmission auxiliary casing 2 is moved to the transmission main casing 1 through the liquid passage 5. The fluidity of the fluid lubricating oil 7 in the transmission main chamber 1 is appropriately ensured, since the rate of the low boiling point and low viscosity oil is increased.

74. 发明专利

JPH06185556A MANUFACTURE OF WET TYPE FRICTION MATERIAL 失效
公开(公告)号：JPH06185556A
公开(公告)日：1994-07-05
申请号：JP33625992
申请日：1992-12-16
申请人： TOYOTA MOTOR CORP
发明人： HAYASHI KEIJI , SUZUKI ATSUSHI
IPC分类号： F16D69/00 , F16D69/02
摘要： PURPOSE:To perform easy and reliable manufacture of a wet type friction material prevented from the occurrence of a judder at the initial stage of a use. CONSTITUTION:0.1-2wt.% PTFE powder with a grain size of 10mum or less is adhered on the surface of a paper base material and thereafter impregnated with a binder for thermoforming. Since a friction surface is fixed in a state to be smoothed by means of PTFE having high lubricity, a stable friction factor is provided from an initial stage and a judder is also prevented from occurring.

75. 发明专利

JPH01169134A WET FRICTION MEMBER 失效
公开(公告)号：JPH01169134A
公开(公告)日：1989-07-04
申请号：JP32653987
申请日：1987-12-23
申请人： TOYOTA MOTOR CORP
发明人： SUZUKI ATSUSHI
IPC分类号： F16D69/02 , C08J5/14 , C09K3/14
摘要： PURPOSE:To stabilize the coefficient of friction by mixing 0.2-5wt.% of inorganic additives composed of hollow calcium carbonate with a specified particle diameter and a specific gravity in wet friction material and mainly arranging them on the surface of the wet friction material. CONSTITUTION:Wet friction member used for automatic transmission vehicle or the like is formed by performing paper-making with mixture of substrate fiber composed of organic fiber and/or inorganic fiber, friction adjusting agent such as metal powder, cashew dust or graphite powder and inorganic additives, and impregnating combined resin thereto. Hollow calcium carbonate with its particle diameter being 2-20mum and specific gravity 0.2-0.6g/cm is used at least one of the inorganic additives, added by the amount of 0.2-5wt.% and mainly arranged on the surface of the wet friction member. The coefficient of friction is thus stabilized by eliminating the difference between initial and intermediate one. Then transmission shock is not generated and therefore the tuning is facilitated.

76. 发明专利

JPS62110123A THERMAL TYPE AIR FLOW RATE MEASURING APPARATUS FOR ENGINE 失效
公开(公告)号：JPS62110123A
公开(公告)日：1987-05-21
申请号：JP25156285
申请日：1985-11-08
申请人： NIPPON DENSO CO , TOYOTA MOTOR CORP
发明人： KINUGAWA MASUMI , SUZUKI ATSUSHI , AKIYAMA SUSUMU , SATO YOSHIHISA , AOKI KEIJI , NAKATOMI TAKAYOSHI
IPC分类号： G01F1/68 , F02D41/18 , F02D45/00 , G01F1/698
摘要： PURPOSE:To enable the compensation for a leak-in air, by providing a means for performing the cut-off control of the supply of heating power with respect to a heating power supply means on the basis of the detection signal from a detection means and a means for finely adjusting the relation between the measuring output signal generated by a signal generating means and an air flow rate. CONSTITUTION:When a start pulse signal is generated in a state synchronous to the rotation of an engine, a flip-flop (FF) circuit 20 is controlled so as to be set in the state corresponding to the start pulse signal and a transistor 17 is turned ON by the output signal of said circuit 20 and heating power controlled to constant voltage is supplied to a bridge circuit 16 containing a temp. sensitive element 12. The element 12 is allowed to generate heat by the heating power and the temp. of the element 12 rises in the state corresponding to the air flow rate of the suction pipe. When the temp. of the element 12 rises to become equal to or more than the state set with respect to the temp. of sucked air observed by a temp. measuring element 13, the ciucuit 20 is reset by the output signal of a comparator 19 and the output signal corresponding to the set time interval of said circuit 20 is supplied to an engine control unit.

77. 发明专利

JP2003172386A WET TYPE FRICTION MATERIAL AND PRODUCING METHOD THEREFOR 审中-公开
公开(公告)号：JP2003172386A
公开(公告)日：2003-06-20
申请号：JP2001374662
申请日：2001-12-07
申请人： AISIN CHEM , TOYOTA MOTOR CORP
发明人： FUJIMAKI YOSHITO , SUZUKI MASATO , MURANAKA TAKUYA , SUZUKI ATSUSHI , KAWABATA MASATAKA
IPC分类号： F16D69/02 , C09K3/14
摘要： PROBLEM TO BE SOLVED: To provide a wet type friction material and producing method therefor capable of achieving a high frictional coefficient μ and an improved μ-V positive gradient with the usage of diatomaceous earth as an additive for improving the frictional coefficient μ. SOLUTION: When the diatomaceous earth having a diameter of 1 to 50 μm is added as the additive so as to make paper for the wet type friction material, paste as a chemical showing delayed falling characteristic is added and papermaking is performed. The fine diatomaceous earth hardly sinks, a sinking speed gets slower by the delayed falling characteristic of the paste, and thereby paper is made on which surface the diatomaceous earth is concentrated. The wet type friction material is produced so that the surface becomes a friction surface. A friction examination is performed for thus produced wet type friction material in order to compare with a conventional wet type friction material whereon the diatomaceous earth is evenly dispersed. The friction examination is performed in a condition that a surface pressure is 980 kPa and an oil temperature is 80°. As a result, it is found out that this wet type friction material shows the enhanced friction coefficient μ and the improved μ-V positive gradient compared to the conventional wet type friction material. COPYRIGHT: (C)2003,JPO

78. 发明专利

JP2003136318A METHOD FOR DRILLING FREE CUTTING STEEL PRODUCT CONTAINING NO LEAD 审中-公开
公开(公告)号：JP2003136318A
公开(公告)日：2003-05-14
申请号：JP2001331406
申请日：2001-10-29
申请人： AICHI STEEL WORKS LTD , TOYOTA CENTRAL RES & DEV , TOYOTA MOTOR CORP
发明人： IWAMA NAOKI , KATO HIDEHISA , SATO KIMIYASU , OKURA KAZUTAKA , MORI MOTOHIDE , NISHI TOSHIYUKI , SUZUKI ATSUSHI
IPC分类号： B23B35/00 , B23B51/00
摘要： PROBLEM TO BE SOLVED: To provide a method for drilling a free cutting steel product capable of improving the service life of a drill when deep drilling is performed for a free cutting steel product for a machine structure containing no Pb as a free cutting element. SOLUTION: In this method for drilling the free cutting steel product containing no lead, the drilling is performed by using the drill made of high- speed tool steel, and having 0.30 to 0.40 of the ratio (t/d) of web thickness (t) and a diameter (d), and 36 deg. to 40 deg. of an angle of torsion, and the surface of a groove part for which TiN coating or homogenizing treatment is performed.

79. 发明专利

JP2002236089A DEVICE FOR MEASURING COEFFICIENT OF FRICTION 失效
公开(公告)号：JP2002236089A
公开(公告)日：2002-08-23
申请号：JP2001030461
申请日：2001-02-07
申请人： TOYOTA MOTOR CORP , AUTOMAX KK
发明人： YAMAMORI KAZUO , ARAI HIROYUKI , SUZUKI ATSUSHI , MIYAJIMA KAZUHIRO , TODA SATOSHI , OTOMO WATARU , OTAKI TOMOTOSHI , KOBAYASHI SHIGENOBU
IPC分类号： G01N19/02
摘要： PROBLEM TO BE SOLVED: To evaluate friction between a belt and a pulley of a belt-type CVT(continuously variable transmission), etc., in a dynamic state, and to separate the friction in the diameter direction and circumferential direction of the pulley. SOLUTION: A belt 10 wound over the pulley is sandwiched between pulleys 28 and 30 for measurement from the sides. Sliding in the direction of movement of the belt is made to occur between the pulley 28 for measurement and the belt 10, and a load torque at this time is measured by a torque meter 34. From the load torque, the radius of contact points between the belt and the pulley for measurement, and vertical load by a weight 48, the coefficient of friction in the circumferential direction are computed, and the pulley 30 for measurement is pulled upward by an actuator 44. The load necessary for the pulling is measured by a load cell 42 to compute the coefficient of friction in the radial direction from the measured value and vertical load by a weight 50.

80. 发明专利

JP2002128721A ETHER COMPOUND AND FLUID COMPOSITION FOR TRACTION DRIVE CONTAINING THE SAME 失效
公开(公告)号：JP2002128721A
公开(公告)日：2002-05-09
申请号：JP2000319969
申请日：2000-10-19
申请人： TOYOTA CENTRAL RES & DEV , TONENGENERAL SEKIYU KK , TOYOTA MOTOR CORP
发明人： OMORI SHUNEI , USUKI ARIMITSU , KEDAARU SHANKAR SHURESUTA , UMEMOTO NOBORU , YOSHIMURA SHIGEHIKO , SUZUKI ATSUSHI , KUBONO KAZUSHIGE
IPC分类号： C07C43/115 , C07C43/18 , C07C43/184 , C10M105/18 , C10N30/00 , C10N30/02 , C10N30/08 , C10N40/04
摘要： PROBLEM TO BE SOLVED: To obtain a fluid composition for a traction drive having excellent low-temperature fluidity, a high traction coefficient and excellent performances. SOLUTION: This ether compound is represented by general formula [1] (R1 is a 5-20C hydrocarbon group; X is a 1-4C alkylene; n is an integer of 0 or 1; R2s are each a group selected from a methyl group, an ethyl group, a propyl group and a butyl group and may be the same or different in the same molecule; p is an integer of 0-10). This fluid composition for traction drive is characterized by comprising the ether compound.

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