Akuacom

Fukuoka, Japan
Fukuoka, Japan
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Patent
Akuacom | Date: 2017-03-29

A friction material comprising: (a) at least one lubricant, wherein the at least one lubricant includes an amount of graphite, and wherein at least about 30 percent by weight of the graphite has a particle size of greater than about 500 microns using a sieve analysis; (b) at least one metal containing constituent for imparting reinforcement, thermal conductivity, and/or friction when the friction material is brought into contact with a movable member, wherein the at least one metal containing constituent includes iron and an iron containing compound; (c) a micro-particulated material; (d) one or more filler materials; (e) optionally at least one processing aid; (f) a balance being an organic binder, wherein the organic binder has less than 1 percent by weight of free phenol; wherein the friction material is free of asbestos and substantially devoid of copper.


Patent
Akuacom | Date: 2017-07-19

In a disc brake apparatus (11), a parallelism maintaining control mechanism (23) for pressing lining surfaces (41) of pads (39) against a disc rotor in parallel includes a pressure plate (49) which is brought into abutment with a pad holding member (19), a link arm (47) having a fixing shaft projecting from a caliper body (25) in parallel to a side surface of a disc rotor, a moving shaft disposed in parallel to the fixing shaft and pivotally supporting the pressure plate (49), joint members which connect the fixing shaft and the moving shaft in parallel to each other and a connecting shaft (63) for pivotally connecting the joint members to each other, and a spring member (45) for pressing the pressure plate (49) against the pad holding member (19).


A method comprising steps of: forming an integral brake caliper body and support bracket that comprises a caliper body (200) and a support bracket (300); and separating the caliper body from the support bracket. The caliper body (200) and the support bracket (300) can be formed via casting process. The present teachings further provides a core (10) including: a piston projection (14) for forming a piston bore (214) in the caliper body (200), and a base (12) for forming a gap (312) between arms (313A, B) of the support bracket (300), wherein the core is part of a tool for forming the integral brake caliper body and support bracket.


Patent
Akuacom | Date: 2017-02-08

The purpose of the present invention is to provide: a steel material for API 5L X60 to X70 grade highly-deformable line pipes that exhibits excellent anti-HIC characteristics in a wet hydrogen sulfide environment having a pH of 5 or more, and that has a low yield ratio even after undergoing a coating process at 300C or less; a method for manufacturing the steel material; and a welded steel pipe. The steel material for highly-deformable line pipes that exhibits strain aging characteristics and anti-HIC characteristics has: a specific composition; has a metal structure primarily comprising ferrite and bainite, the area fraction of the ferrite and bainite totaling at least 90%, and the difference in hardness between the ferrite and the bainite being at least 70 in terms of Vickers hardness; and a uniform elongation of at least 9% and a yield ratio of not more than 90% with regard to pre- and post-strain aging treatment at 300C or less.


A friction material composition containing an alkali metal salt as a friction adjusting material. The alkali metal salt is spherical and porous. The alkali metal salt has an average particle diameter of 20 m to 240 m. A friction material is produced by using the friction material composition.


Provided is a brake block including a friction material whose friction coefficient is decreased to the same level as in a cast iron-based friction material while ensuring braking properties under dry and wet conditions and a method for producing the same. The brake block I includes a friction material 3 including a scale-like graphite and a granular graphite in an amount of 20 to 30% by volume in total. The brake block I is produced by a production method including: a preforming step of subjecting a frictional material composition including a scale-like graphite and a granular graphite in an amount of 20 to 30% by volume in total to pressure forming, thereby obtaining a preformed body, and a heat compression forming step of putting the preformed body into a thermoforming mold, and overlaying a back plate thereon, followed by performing heat compression forming, thereby obtaining a brake block I having a desired shape.


Patent
Akuacom | Date: 2017-05-03

A drum brake apparatus (11) includes a wheel cylinder (15), an extension mechanism (21) disposed in the wheel cylinder, and an electric actuator. The wheel cylinder (15) pushes adjacent ends on one sides of a pair of brake shoes (25, 27) disposed in a brake drum (29), at a tip portion of a first piston (39) and a tip portion of a second piston (41) by fluid pressure, to thereby expands the pair of brake shoes (25, 27). The extension mechanism (21) drives the first piston (39) and the second piston (41) in a direction away from each other. The electric actuator rotates the extension mechanism (21).


Patent
Akuacom | Date: 2017-04-12

An engaging projection (19) formed on a back surface of a pressure plate (2a) is inserted into an engaging hole (26) formed in an outside shim plate (4a). A flat surface parts (20a, 20b) of the engaging projection (19) constituting a side surface thereof are opposed to a linear parts (27a, 27b) of the engaging hole (26) constituting an inner peripheral edge thereof. When the outside shim plate (4a) exists at a neutral position with respect to the pressure plate (2a), the flat surface parts (20a, 20b) and linear parts (27a, 27b) are slightly inclined with respect to each other. A rotation of the outside shim plate (4a) about an axis (O) of a piston (14a) based on a rotation force applied from a leading end face of the piston (14a) to the outside shim plate (4a) is regulated by line contact between the flat surface parts (20a, 20b) and linear parts (27a, 27b).


Patent
Akuacom | Date: 2017-04-19

A method that includes steps of measuring voltage and current of the parking brake system during creation of a parking brake apply or release of the parking brake apply. The method includes estimating motor position, motor speed, and a current draw of the motor using the measured voltage and the measured current. The method includes estimating a parking brake force with the estimated motor position. The method includes correcting the estimated motor position, motor speed, and the current draw of the motor with the measured current, and/or correcting the estimated parking brake force with the corrected estimated motor position, corrected motor, and the corrected current draw of the motor. The method includes determining the creation of the parking brake apply with the corrected parking brake force and/or determining release of the parking brake apply with the corrected estimated motor position.


Patent
Akuacom | Date: 2017-09-13

A friction material includes a fiber base material, a friction modifying material and a binder. The friction modifying material includes alumina particles including, as a main component, -alumina particles. The -alumina particles are contained in an amount of 1 mass% or more in the friction material.

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