Central Motor Wheel Co., Ltd. Patent applications |
Patent application number | Title | Published |
20150360526 | TIRE MOUNTING DEVICE - A bead guide ( | 12-17-2015 |
20150102656 | AUTOMOBILE WHEEL - Each spoke portion ( | 04-16-2015 |
20150042150 | AUTOMOBILE WHEEL - Each spoke portion includes spoke projecting threads on both sides thereof, and a reinforcing plate portion is formed so as to protrude from a side edge of each of the spoke projecting threads outward in a spoke widthwise direction. The reinforcing plate portion is formed continuously with an inter-spoke plate potion extended from a fitting portion of a disc flange portion to a wheel radially inner side, and forms an integral plate surface with the inter-spoke plate portion. With this configuration, it is possible to reduce imbalance of rigidity of the spoke portion in a radial direction, and to increase rigidity of an automobile wheel. | 02-12-2015 |
20130257139 | AUTOMOBILE WHEEL - An automobile wheel is provided with a spoke section and a disk flange section. The spoke section is provided with a central groove section and raised side section disposed on either side of the central groove section. The raised side sections are provided with a peak side section that protrudes to the front and a flange section that extends from the side edge of the peak side section to the back. Meanwhile, the disk flange section is provided with a connector section and front edge sections that curve radially inward from the front edge of the connector section. The front edge sections are depressed toward the back relative to the peak side section of the raised side section. This automobile wheel, by means of the synergy between the shape effects of the spoke section and the disk flange section, improves strength and rigidity for withstanding radial loads and bending/torsional loads. | 10-03-2013 |
20130239411 | METHOD FOR MANUFACTURING VEHICLE WHEEL, AND VEHICLE WHEEL - A recess is formed on the periphery of each of through-holes that go through a rim cavity, and the outer surface of a rim part is cut while a seal member for sealing the through-hole is positioned on the recess. It is thereby possible to stably manufacture a vehicle wheel in which swarf tends not to remain inside the rim cavity. Furthermore, it is not necessary to avoid the seal member for sealing the through-hole when cutting the outer surface of the rim part, and the outer surface of the rim part can be cut without any distinction having to be made between the periphery of the through-hole and the rest of the outer surface. Any increase in manufacturing costs can be minimized. | 09-19-2013 |
20130152395 | VEHICLE WHEEL AND METHOD FOR MANUFACTURING VEHICLE WHEEL - A vehicle wheel according to the present invention includes a hollow-state hollow portion and a solid-state non-hollow portion inside an outboard bead seat in a radial direction, which are provided in series in a circumferential direction of the wheel, the non-hollow portion having a cross section with a larger area than a hole cross section of a valve hole and having the valve hole formed therein. This structure prevents a sealing structure for ensuring hermetic performance from being complicated as compared to a wheel having the valve hole in the hollow portion, thus simplifying a mounting structure of an air valve. A method for manufacturing such a vehicle wheel allows formation of the valve hole in the non-hollow portion. Machining dust generated through a cutting process can thus be prevented from entering the hollow portion and remaining therein. | 06-20-2013 |
20130140874 | WHEEL FOR AUTOMOBILE - A wheel for an automobile is configured in such a manner that the wheel disc comprises an outer peripheral ring section having protrusions and recesses, the outer peripheral ring section being formed by continuously and alternately forming circular arc-shaped contact sections and contactless protrusion sections along the circumferential direction of the wheel, the circular arc-shaped contact sections being in contact with and welded to the bent peripheral section of the wheel rim, the contactless protrusion sections protruding further toward the front side than the circular arc-shaped contact sections and separating from the bent peripheral section. Welded sections at which the circular arc-shaped contact sections and the bent peripheral sections are welded together are intermittently arranged in the circumferential direction of the wheel. The configuration provides a large design surface to improve the freedom of design and improves the rigidity because of the shape effect of the outer peripheral ring section having protrusions and recesses. | 06-06-2013 |
20130057049 | WHEEL FOR AUTOMOBILE - A hat portion of a wheel disk includes a hat inner inclined circumferential portion and a hat outer inclined circumferential portion. At least one of the hat inner inclined circumferential portion and the hat outer inclined circumferential portion includes: a plurality of curved protruding circumferential portions that protrude toward a surface side into a curved shape; and at least one curved recessed circumferential portion that is provided between the adjacent curved protruding circumferential portions and that is recessed toward a back side into a curved shape. The hat portion of this construction provides a significant effect in improving stiffness because of the shapes of the curved protruding circumferential portions and the curved recessed circumferential portion. Consequently, an automobile wheel has improved overall stiffness and strength. Therefore, a car on which the automobile wheel is mounted can provide increased driving stability. | 03-07-2013 |
20120288707 | BASE COAT COATING COMPOSITION, COMPOSITE FILM, AND METHOD FOR PRODUCING SAME - A base coat coating composition which is able to suppress cracking of a metal thin film, even when a tough top coat layer capable of satisfactorily protecting the metal thin film is formed on the metal thin film, and even when a heat resistance test is performed, as well as a composite film and a method for producing the composite film. Specifically, a base coat coating composition used for undercoating a metal thin film formed on a metal substrate, and containing a coating film-forming component which contains at least 30% by mass of an epoxy (meth)acrylate having a cyclic structure and has an average molecular weight between crosslinks of 180 to 1,000, as well as a composite film having a base coat layer obtained from the base coat coating composition, and a method for producing the composite film. | 11-15-2012 |
20120274127 | AUTOMOBILE WHEEL - An automobile wheel includes first bottom portions provided inward in a radial direction of a front side bead seat portion and a back side bead seat portion between the front side bead seat portion and back side bead seat portion and second bottom portions provided inward in the radial direction of the first bottom portions. The first bottom portions and second bottom portions are alternately provided in a circumferential direction. This configuration increases difference in area between area of a cross section in the radial direction of a tire-internal space in sections where the first bottom portions are provided and area of a cross section in the radial direction in sections where the second bottom portions are provided and thus allows improvement in an effect of reducing cavity resonant noise. | 11-01-2012 |
20120217249 | FUEL TANK - This invention provides a fuel tank of a simple structure without any special device but having space of a predetermined ratio after the fuel tank has been filled with liquefied fuel. The fuel tank is of a form in which a number of cylindrical or spherical containers are arranged in parallel and are coupled together in a manner that the cylindrical or spherical containers neighboring each other share partitioning walls, respectively. Each of the partitioning walls has a passage through which the neighboring cylindrical or spherical containers are communicated with each other, and the upper ends of the passages are formed leaving partly the inner partitioning walls so that the liquid will not enter into the upper parts of the cylindrical or spherical containers. | 08-30-2012 |
20120153708 | AUTOMOTIVE WHEEL - The present invention proposes an automotive wheel that can exhibit high strength and high durability. The automotive wheel includes a wheel disc in which a hat section is provided outside a hub mounting section, and a hat inner inclined surrounding section of the hat section includes an inner convex surrounding section protruding to a surface side in a curved shape, and an inner lower concave surrounding section continuously formed with an inner peripheral edge of the inner convex surrounding section, continuously formed with an outer peripheral edge of a hub surface rounded section, and protruding to the back side in the curved shape. The automotive wheel according to the present invention can reduce the stress concentration on the hub surface rounded section which is produced by the lateral force applied during the traveling of the automobile, and therefore high strength and high durability can be provided. | 06-21-2012 |
20120146392 | AUTOMOTIVE WHEEL - In an automotive wheel, a well recessed portion that is recessed in the back-side direction along a well bottom portion forming a well of a wheel rim is formed at a portion of a back-side well wall portion of the well opposite a valve hole. Thus, vibration generated by the centrifugal force of an air valve with a pneumatic pressure detection device while an automobile is running can be suppressed by the effect due to the shape of the well recessed portion, and the operation stability, the riding comfort, and so forth of the automobile can be improved. In another automotive wheel, a well recessed portion that is recessed in the surface-side direction along a well bottom portion forming a well of a wheel rim is formed at a portion of a surface-side well wall portion forming the well at which a valve hole is formed such that a surface-side portion of a pneumatic pressure detection device of an air valve with a pneumatic pressure detection device is fitted in the well recessed portion. Also in this case, the same effect can be achieved. | 06-14-2012 |
20120086263 | AUTOMOTIVE WHEEL - An automotive wheel that can prevent deformation of a back side opening edge of a wheel rim in a radial direction and reduce the weight of the wheel rim is proposed. | 04-12-2012 |
20120056360 | Process for producing metal composite material - Producing a metal composite material by mixing hydrated ceramic particles, having water of crystallization that is bound within fine pores which have an average pore diameter of 1 nm or more and 80 nm or less, with a reinforcing material, the resulting mixture being sintered to form a preform which is then impregnated with a melt of an aluminum alloy and subjected to surface polishing. The ceramic particles, from which water of crystallization has been removed while the average pore diameter of the pores thereof is maintained, are dispersed uniformly, it is possible to obtain the metal composite material in which the ceramic particles that have fine pores are exposed on surfaces evenly in a stable manner by surface polishing that is conducted after the melt impregnation. The metal composite material can permit infiltration of a lubricating oil into the fine pores. | 03-08-2012 |
20110210602 | AUTOMOBILE WHEEL - In an automobile wheel, a disc flange of a wheel disc includes bent surface-side edge portions each having an arcuate shape and arranged concentrically with each other, and the bent surface-side edge portions extend from the surface-side end edge of a fitted straight annular portion to be bent radially inward and are dented to a back side of the outer end portions of the lateral edge portions of spokes. The thus configured automobile wheel can exhibit high strength and rigidity against a radial load, a bending load, and a torsional load because of the shape of the bent surface-side edge portions, thereby suppressing deformation of the disc flange caused while an automobile is running. Thus, it is possible to mitigate a stress concentration on a joined portion between the wheel disc and a wheel rim. | 09-01-2011 |
20110198916 | AUTOMOBILE WHEEL - A front flange portion formed at an outer peripheral edge portion of a wheel disc includes an annular front peripheral portion provided on a design surface side and an annular back peripheral portion folded backward from the annular front peripheral portion to extend radially inwardly and in surface contact with a back surface of the annular from peripheral portion, and the annular front peripheral portion and the annular back peripheral portion are integrally inclined to the surface side. Therefore, the front flange portion can mitigate stress concentration on the front flange portion due to a load generated while the automobile is running. In addition, the front flange portion has, because of its shape, high durability against a radially inward load generated by a contact with a curbstone or the like. | 08-18-2011 |
20110198915 | AUTOMOBILE WHEEL - Because a front flange portion including an annular front peripheral portion and an annular back peripheral portion is formed along an outer peripheral edge portion of the wheel disc, and because a back surface portion and an opening end portion of a front bead seat portion of a wheel rim are welded to each other over the entire circumference of the wheel but the annular back peripheral portion and the wheel rim are not welded to each other, stress concentration on the front flange portion due to a load generated while the automobile is running can be mitigated. Therefore, an automobile wheel has high durability against a load generated while the automobile is running. | 08-18-2011 |
20110162521 | MMC CYLINDER LINER AND METHOD FOR PRODUCING THE SAME - An MMC cylinder liner comprises an inner tubular portion and an outer tubular portion. The inner tubular portion includes a metal matrix composite formed of a compact impregnated with an Al—Si alloy wherein the compact is made of a reinforcing material. The outer tubular portion is formed of the Al—Si alloy. The Si concentration of the Al—Si alloy impregnated into the compact of the inner tubular portion is different from the Si concentration of the Al—Si alloy of the outer tubular portion. | 07-07-2011 |
20110156474 | AUTOMOBILE WHEEL - An inner peripheral end portion of an annular back peripheral portion forming a front flange portion, an opening end portion of a front bead seat portion and a back surface portion of a wheel disc are joined to each other by a first welded portion and a second welded portion. Accordingly, it is possible to prevent the front flange portion from being repeatedly elastically deformed by loads generated while the automobile is running. In addition, it is possible to mitigate a stress concentration generated on the front flange portion and the first welded portion and the second welded portion. Thus, an automobile wheel can exhibit high durability. | 06-30-2011 |
20110155949 | PROCESS FOR PRODUCTION OF ALUMINUM WHEEL - A process for producing an aluminum wheel includes a cleaning step, in which the surface of the aluminum wheel is chemically etched with an alkali cleaning liquid which contains an alkali builder, an organic builder, and a chelating agent to such an extent that the Si atomic ratio of metal Si to oxide Si is from 0.01 to 9, and a shot blast treatment step can be omitted for cleaning the surface of the aluminum wheel. | 06-30-2011 |
20110101575 | PREFORM FOR COMPOSITE MATERIAL AND PROCESS FOR PRODUCING THE SAME - A preform for a composite material which has high strength and excellent air permeability and hence is applicable to a high-speed die casting method and which is capable of forming a metal composite material having excellent mechanical properties by a high-speed die casting method. Also provided is a process for producing such a preform. Ceramic fibers or/and ceramic particles are mixed with a silica sol and calcium carbonate and sintered at a predetermined temperature to form a calcium/silicon sinter obtained from the silica sol and calcium carbonate. The calcium/silicon sinter coats the ceramic fibers or/and ceramic particles so that a preform having the fibers or/and the particles bound to each other by the calcium/silicon sinter is obtained. The preform for a composite material has high strength and excellent air permeability and is applicable to the high-speed die casting method capable of attaining high productivity. | 05-05-2011 |
20100314932 | AUTOMOBILE WHEEL - In a disc of an automobile wheel, a plurality of hub surface rounded portions are formed at intervals on an imaginary circle provided around a hub hole and centered on an imaginary center corresponding to the center of the hub hole. The hub surface rounded portions are provided with a compressive residual stress by a compression process for work hardening. The strength of the hub surface rounded portions can thus be improved. | 12-16-2010 |
20100246326 | ULTRASONIC EXPLORATION METHOD AND ULTRASONIC EXPLORATION APPARATUS - To propose an ultrasonic exploration method and an ultrasonic exploration apparatus that allow exploration of an exploration-target area such as a welded portion to provide a cross-sectional image of the exploration-target area accurately and stably. | 09-30-2010 |
20100213756 | AUTOMOBILE WHEEL - The present invention proposes an automobile wheel that includes a wheel disk with improved stiffness to have increased strength and increased driving stability for lateral force. An imaginary inward angled line L is tangential to an inner circumferential surface | 08-26-2010 |
20100181822 | AUTOMOBILE WHEEL AND PROCESS FOR PRODUCING THE SAME - In an automobile wheel, a surface-side flange is provided on an outer circumferential edge of a wheel disk. The surface-side flange includes: a surface-side annular circumferential portion on an aesthetic surface; and a back-side annular circumferential portion that is formed continuously with, and on the back side of, the surface-side annular circumferential portion and that is thinner than the surface-side annular circumferential portion. An inner circumferential end of the back-side annular circumferential portion of the surface-side flange and an opening end of a surface-side bead seat of a wheel rim are welded together all along their circumferences. The automobile wheel allows the back-side annular circumferential portion of the surface-side flange to bear a stress that acts on a weld area. This relaxes the stress concentration on the weld area. | 07-22-2010 |
20100143704 | METAL COMPOSITE MATERIAL AND PROCESS FOR PRODUCING METAL COMPOSITE MATERIAL - A metal composite material is obtained by casting a melt of a metal and has an outer surface on which aluminum borate particles maintained in a porous form are exposed. Therefore, an oil is allowed to infiltrate the aluminum borate particles on the outer surface, to be retained therein and to ooze out during sliding. As a consequence, the sliding life during which desired sliding properties are maintained can be significantly prolonged. The metal composite material may be produced from a preform obtained by sintering aluminum borate particles covered with electrically neutralized silica and alumina particles which have been formed by mixing a silica sol and an alumina sol with aluminum borate particles in an aqueous solution to cover aluminum borate particles. | 06-10-2010 |
20100117444 | AUTOMOBILE WHEEL - An automobile wheel includes: a wheel rim | 05-13-2010 |
20100102620 | METHOD FOR PREVENTING DIRTYING OF VEHICLE WHEEL AND VEHICLE WHEEL - An object of the present invention is to obtain a vehicle wheel having a significant effect of preventing dirtying due to brake dust. A + (positively)-charged coating film in which the water contact angle is 35° or less and the product of saturated charging voltage (kV)×charge half life (sec) is 50 or less is formed on the surface of a vehicle wheel. | 04-29-2010 |
20090197074 | METAL COMPOSITE MATERIAL AND PROCESS FOR PRODUCTION OF METAL COMPOSITE MATERIAL - A metal composite material which can show high wear resistance and durability when used as a sliding member and a process for producing such a metal includes material are proposed. The metal composite material ( | 08-06-2009 |
20090035554 | PREFORM FOR COMPOSITE MATERIAL AND PROCESS FOR PRODUCING THE SAME - A preform for a composite material which has high strength and excellent air permeability and hence is applicable to a high-speed die casting method and which is capable of forming a metal composite material having excellent mechanical properties by a high-speed die casting method. Also provided is a process for producing such a preform. Ceramic fibers or/and ceramic particles are mixed with a silica sol and calcium carbonate and sintered at a predetermined temperature to form a calcium/silicon sinter obtained from the silica sol and calcium carbonate. The calcium/silicon sinter coats the ceramic fibers or/and ceramic particles so that a preform having the fibers or/and the particles bound to each other by the calcium/silicon sinter is obtained. The preform for a composite material has high strength and excellent air permeability and is applicable to the high-speed die casting method capable of attaining high productivity. | 02-05-2009 |