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1. 发明专利

JP2003211474A MOLD FOR THERMALLY MOLDING FRICTION MATERIAL AND METHOD FOR MANUFACTURING FRICTION MATERIAL USING MOLD 审中-公开
公开(公告)号：JP2003211474A
公开(公告)日：2003-07-29
申请号：JP2002014245
申请日：2002-01-23
申请人： AKEBONO BRAKE IND , AKEBONO RES & DEV CENTRE
发明人： ARAI KATSUO , SASAKI YOSUKE , KURIHARA SEI , MIYAGI KOICHI , GOTO TAKASHI , SUNAGA ISAO
IPC分类号： B29C43/36 , B29C43/18 , B29C43/20 , B29K103/00 , B29L31/16
摘要： PROBLEM TO BE SOLVED: To provide a mold for thermally molding a friction material with a capability of reducing the incidence of defects such as cracks and blisters due to the insufficient discharge of a generated gas, by rapidly discharging the gas to the outside from a molded product, and a method for manufacturing a friction material using the mold. SOLUTION: The mold for thermal molding comprises a top force, an intermediate force and a bottom force in order to form the friction material by thermally pressurizing a preform as a raw friction material and a pressure plate. In this mold, the intermediate mold coming into contact with the preform is constituted of an upper intermediate part and a lower intermediate part and an insert plate A with a cavity matching the outer shape of a friction material product and a gas bleeder hole and at least one piece of an insert plate B with a larger cavity than the outer shape of the product, a gas bleeder hole and a gas bleeder groove communicating between the cavity and the gas bleeder hole, mutually laminated and connected to each other, between the upper intermediate part and the lower intermediate part. COPYRIGHT: (C)2003,JPO

2. 发明专利

JP2003160780A FRICTION MATERIAL 审中-公开
公开(公告)号：JP2003160780A
公开(公告)日：2003-06-06
申请号：JP2001359341
申请日：2001-11-26
申请人： AKEBONO RES & DEV CENTRE
发明人： MORITA MASAYUKI , KUSAKA SATOSHI , SASAKI YOSUKE
IPC分类号： F16D69/02 , C09K3/14
摘要： PROBLEM TO BE SOLVED: To provide a friction material good in facing performance and little in environmental load. SOLUTION: This friction material comprises a fibrous base material, a friction adjusting material, a binder and an inorganic filler, where at least one calcined bone powder among livestock and fish is formulated as a part of the inorganic filler. Preferably, the calcined bone powder is formulated by 5 to 65 wt.% in the whole friction material. COPYRIGHT: (C)2003,JPO

3. 发明专利

JP2002285462A METHOD OF MIXED FIBRILLATION FOR FIBERS 失效
公开(公告)号：JP2002285462A
公开(公告)日：2002-10-03
申请号：JP2001085297
申请日：2001-03-23
申请人： AKEBONO RES & DEV CENTRE
发明人： KUSAKA SATOSHI , SASAKI YOSUKE
IPC分类号： D06C11/00 , D04H1/50
摘要： PROBLEM TO BE SOLVED: To obtain a fibrillated pulp mixture of plural kinds of organic fibers in a homogeneously mixed state. SOLUTION: This method of mixed fibrillation for fibers previously mixes the plural kinds of organic fibers in a predetermined ratio and then fibrillates the mixture.

4. 发明专利

JP2002226832A METHOD FOR EVALUATING MIXED STATE OF STIRRED FRICTION MATERIAL 失效
公开(公告)号：JP2002226832A
公开(公告)日：2002-08-14
申请号：JP2001027147
申请日：2001-02-02
申请人： AKEBONO RES & DEV CENTRE
发明人： ARAI KATSUO , KURIHARA SEI
IPC分类号： G01N23/225 , C09K3/14 , G01N21/17 , G01N21/64
摘要： PROBLEM TO BE SOLVED: To obtain a friction material having stable quality and performances by quantitatively evaluating a mixed state of the stirred material of friction material for a brake. SOLUTION: This method for evaluating the mixed state of the stirred friction material is characterized by quantitatively evaluating the mixed state of the stirred material of friction material by discriminating between the objective material of evaluation of the friction material and nonobjective materials thereof and dividing the materials into two values with using an image analysis device and quantitatively measuring a size, an amount and a dispersed state of the objective material of evaluation.

5. 发明专利

JP2002136091A BRUSHLESS DC MOTOR 失效
公开(公告)号：JP2002136091A
公开(公告)日：2002-05-10
申请号：JP2000318127
申请日：2000-10-18
申请人： AKEBONO RES & DEV CENTRE
发明人： TAKAHASHI HIDEAKI
IPC分类号： H02K1/24 , H02K21/14 , H02K29/08
摘要： PROBLEM TO BE SOLVED: To provide a brushless DC motor having a high torque output by always keeping a the air gap constant and narrow by disposing the magnetic yoke of its rotor facing the stator core of its stator. SOLUTION: The brushless DC motor has the stator consisting of a stator coil 3 on the stator core 4 and the rotor which penetrates and fixes a center yoke 6 fixing a permanent magnet 10 to a shaft 1 with adhesive and magnetic yokes 5, 9. The magnetic yokes 5, 9 have respectively top face parts 5a, 9a which form each circle plane vertical to the shaft 1 and side face parts 5b, 9b which form each curved surface along the shaft 1. The top face parts 5a, 9a are fixed to the shaft 1 by contacting the permanent magnet 10, and the side face parts 5b, 9b accommodate the permanent magnet 10 inside and face the stator core 4 with a minute gap α outside.

6. 发明专利

JP2002089453A HYDRAULIC CONTROL DEVICE 失效
公开(公告)号：JP2002089453A
公开(公告)日：2002-03-27
申请号：JP2000279795
申请日：2000-09-14
申请人： AKEBONO RES & DEV CENTRE
发明人： MASUKO MINORU , MURATA YUKIO , KANEKO MINORU , OGAWA YUTAKA
IPC分类号： F04B49/06 , F04B9/00 , F04B17/04
摘要： PROBLEM TO BE SOLVED: To provide a hydraulic control device which can easily detect and control a controlled oil pressure. SOLUTION: This hydraulic control device, supplying a current from a power source 11 to a coil 3 to make an extending/contracting motion of a super magneto-strictive material 2 arranged in the center of the coil 3 by a magneto- striction phenomenon to have an electric motor pump performing pump action by reciprocating a pump piston 4 provided in the super magneto-strictive material to be provided with a control objective part operated by a delivery pressure from this electric motor pump, is characterized by providing a current detection means 14 detecting a current flowing in the coil 3 of the electric motor pump to estimate the delivery pressure of the pump based on the current detected in this current detection means.

7. 发明专利

JP2002053026A ELECTRIC BRAKING DEVICE 失效
公开(公告)号：JP2002053026A
公开(公告)日：2002-02-19
申请号：JP2000240656
申请日：2000-08-09
申请人： AKEBONO RES & DEV CENTRE
发明人： MASUKO MINORU , MURATA YUKIO
IPC分类号： B60T13/14 , B61H13/00
摘要： PROBLEM TO BE SOLVED: To provide a hydraulic electric braking device combined with an accumulator, capable of effectively utilizing the residual oil pressure. SOLUTION: In this hydraulic electric braking device operated by the discharged oil pressure of an electric pump 1, a high-pressure reservoir 10 and a low-pressure reservoir 11 are mounted in the electric braking device, a hydraulic cylinder 31 in the electric braking device is connected to the high-pressure reservoir 10 and the low-pressure reservoir 11 through a solenoid valve, and the residual oil pressure in releasing the brake is divided to be accumulated to the high-pressure reservoir and the low-pressure reservoir on the basis of a predetermined pressure as the boundary.

8. 发明专利

JP2001320856A MOTOR WITH BUILT-IN BRAKE 失效
公开(公告)号：JP2001320856A
公开(公告)日：2001-11-16
申请号：JP2000134389
申请日：2000-05-08
申请人： AKEBONO RES & DEV CENTRE
发明人： TAKAHASHI HIDEAKI
IPC分类号： H02K7/102
摘要： PROBLEM TO BE SOLVED: To provide a motor with built-in brake, which has a built-in brake in the motor and is capable of obtaining stop holding torque when power is not applied. SOLUTION: The motor with built-in brake consists of a motor comprising a casing 1, a magnet 7 mounted on the inner wall of the casing 1, a rotor 8 placed opposite to the magnet, and a shaft 9 that supports the rotor. The shaft 9 of the rotor 9 is installed in the casing 1 so that the shaft can be rotated and slid in the axial direction, and is provided with a movable-side braking member 18. The casing 1 is provided with a fixed-side braking member that is abutted against the movable-side braking member 18 and thereby performs braking action. A brake is applied to the rotor 8, when energized, by the center of the rotor in the axial direction being displaced relative to the magnetic center of the magnet 7 in such a direction that the movable-side braking member 18 goes away from the fixed-side braking member 19, and, when not energized, by the movable-side braking member 18 being pressed against the fixed-side braking member 19 by centripetal force between the magnet 7 and the rotor 8.

9. 发明专利

JP2001317573A DISC ROTOR FOR BRAKE 失效
公开(公告)号：JP2001317573A
公开(公告)日：2001-11-16
申请号：JP2000137292
申请日：2000-05-10
申请人： AKEBONO RES & DEV CENTRE
发明人： HORITANI TAKAO , KATO MASANORI
IPC分类号： F16D65/12
摘要： PROBLEM TO BE SOLVED: To provide a lightweight disc rotor for a brake formed of Ti and a Ti alloy, having excellent wear resistance, strength at a high temperature and corrosion resistance. SOLUTION: The disc rotor for a brake is characterized by that a surface of a rotor body formed of pure Ti or the Ti alloy is coated with WC-Co cermet or Fe-C material by high speed flame spraying of a flame speed not less than 1200 m/s. The thickness of a coating layer of the WC-Co cermet or the Fe-C material is preferably 50-500 μm.

10. 发明专利

JP2001303026A REINFORCING FIBER FOR FRICTION MATERIAL AND METHOD FOR PRODUCING THE SAME 失效
公开(公告)号：JP2001303026A
公开(公告)日：2001-10-31
申请号：JP2000121214
申请日：2000-04-21
申请人： AKEBONO RES & DEV CENTRE
发明人： KUSAKA SATOSHI
IPC分类号： F16D69/02 , C08J5/14 , C09K3/14 , C09K3/16 , D06M13/463
摘要： PROBLEM TO BE SOLVED: To provide reinforcing fibers which are used for friction materials and inhibit the generation of static electricity on the opening of aramid pulp to prevent the fibers from scattering and adhering to surroundings, thereby improving workability and fiber openability. SOLUTION: The reinforcing fibers for friction materials, characterized by adhering an antistatic agent solution containing a surfactant, an antistatic agent aqueous emulsion containing a surfactant emulsified and dispersed therein, or both the solution and the emulsion to aramid pulp and then opening the aramid pulp.

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