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1.发明申请公开(公告)号：US20200256765A1
公开(公告)日：2020-08-13
申请号：US16758332
申请日：2018-10-10
发明人： Toru OKADA
摘要： Provided are a tire tangential load measuring device capable of directly measuring a tangential load of a tire and a tire rolling resistance evaluating device capable of evaluating a rolling resistance of a tire using the tire tangential load measuring device, without using a large-sized device. A tire tangential load measuring device (10) includes two or more load rolls (44A, 44B) smaller in diameter than that of the tire and arranged side by side, an air cylinder (13) as a moving mechanism capable of pressing the two or more load rolls (44A, 44B) against the rotating tire with a predetermined load fz, and a strain gauge (51) as a tangential load sensor for measuring the tangential load fx of the tire in a rotating state while the surfaces of the two or more load rolls (44A, 44B) are pressed against the tread surface of the tire with the predetermined load fz. The tire rolling resistance evaluating device uses the tangential load measuring device (10).
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公开(公告)号：US20190086292A1
公开(公告)日：2019-03-21
申请号：US16091843
申请日：2017-04-10
发明人： Toru OKADA
IPC分类号： G01M17/02
摘要： Rolling resistance is appropriately and easily evaluated at an arbitrary temperature of a tire. When a phase difference between a load applied to the tire and a variation in position of the drum is derived for a reference tire, the phase differences δ are derived at a plurality of temperatures within a range from an initial temperature to an atmospheric temperature in a process in which a temperature of the reference tire that reached the initial temperature higher or lower than the atmospheric temperature by heating or cooling approaches the atmospheric temperature from the initial temperature. The phase difference corresponding to a temperature of a tire to be evaluated among the phase differences δ derived for the reference tire at the plurality of temperatures and the phase difference derived for the tire to be evaluated are compared, thereby evaluating rolling resistance of the tire to be evaluated.
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3.发明申请公开(公告)号：US20170153163A1
公开(公告)日：2017-06-01
申请号：US15309999
申请日：2015-05-07
发明人： Toru OKADA
CPC分类号： G01M17/022 , G01M17/021 , G05B15/02 , G06F17/5009
摘要： An applied load acting on a tire is varied by alternately moving a load drum in a direction of approaching and leaving the tire. A phase difference between a variation of a position of the load drum and a variation of the applied load is calculated. A tire having an abnormality in rolling resistance is sorted out based on the calculated phase difference.
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公开(公告)号：US20160084738A1
公开(公告)日：2016-03-24
申请号：US14787672
申请日：2014-05-13
发明人： Toru OKADA
IPC分类号： G01M17/02
CPC分类号： G01M17/022
摘要： A tire traveling test device has a belt that horizontally spans between two drums and a load support device that supports a flat surface of the belt from a lower surface side of the belt. The load support device is provided with a liquid supply means that supplies support liquid between the load support device and the belt and supports the belt from below. The liquid supply means is provided with a plurality of supply holes from which support liquid can be discharged between the load support device and the belt. Additionally, the liquid supply means can adjust the flow rate of the support liquid discharged from the supply holes on the basis of the fluid pressure, which changes according to the tire contact state.
摘要翻译： 轮胎行驶试验装置具有水平地跨越两个鼓之间的带和从带的下表面侧支撑带的平坦表面的负载支撑装置。 负载支撑装置设置有液体供应装置，其在负载支撑装置和带之间提供支撑液体并且从下方支撑带。 液体供给装置设置有多个供应孔，支撑液体可以从该供应孔在负载支撑装置和带之间排出。 此外，液体供给装置可以根据根据轮胎接触状态变化的流体压力来调节从供给孔排出的支撑液体的流量。
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公开(公告)号：US20200041384A1
公开(公告)日：2020-02-06
申请号：US16074221
申请日：2017-01-24
发明人： Toru OKADA
摘要： A tire air filling mechanism in a tire testing device includes an air supply source which supplies air into a tire to be mounted between a pair of rims attached to ends of tire shafts. An injection direction of the air supplied into the tire from the air supply source is set at a direction inclined with respect to a radial direction of the tire, so that the air supplied from the air supply source can be turned inside the tire.
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公开(公告)号：US20160025598A1
公开(公告)日：2016-01-28
申请号：US14782226
申请日：2014-03-05
发明人： Toru OKADA
IPC分类号： G01M17/02
CPC分类号： G01M17/02 , B60S5/046 , G05D16/2013
摘要： A pneumatic circuit of a tire testing apparatus includes: a piping configured to guiding air from an air supply source to a tire; a control part configured to output a target command pressure; a pressure proportional control valve part; and a constant-flow air discharge part. The pressure proportional control valve part supplies and discharges the air of a flow rate proportional to a differential pressure between the target command pressure and an internal pressure of the tire so that the internal pressure of the tire becomes the target command pressure, and has a dead band in which the air is not supplied and discharged within a predetermined range. The constant-flow air discharge part is formed between the tire and the pressure proportional control valve part, and is configured to discharge the air of an inside of the piping to an outside at a constant flow rate.
摘要翻译： 轮胎测试装置的气动回路包括：配置成将空气从空气供给源引导至轮胎的配管; 被配置为输出目标指令压力的控制部; 压力比例控制阀部分; 和恒流空气排出部。 压力比例控制阀部件将与目标指令压力和轮胎内压之间的压差成比例的流量的空气供给和排出，使得轮胎的内部压力成为目标指令压力，并且具有死亡 其中空气不被供给并在预定范围内排出。 恒流空气排出部形成在轮胎和压力比例控制阀部之间，并且被配置为以恒定的流量将管道内部的空气排出到外部。
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公开(公告)号：US20220196151A1
公开(公告)日：2022-06-23
申请号：US17456485
申请日：2021-11-24
发明人： Toru OKADA , Tomohiro OTSUKA
摘要： The piston ring unit includes a plurality of piston rings and an inner contact ring. A plurality of piston rings are disposed adjacent to each other in an axial direction of the piston such that joints of plurality of the piston rings do not overlap with each other in the axial direction. An inner contact ring is interposed between an outer circumferential surface of the piston and an inner circumferential surface of the piston ring in a state where the inner contact ring extends over all of the plurality of piston rings in the axial direction, and is disposed such that an opening of the inner contact ring does not overlap with the joint of the at least one piston ring as viewed in a radial direction of the piston.
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公开(公告)号：US20200332861A1
公开(公告)日：2020-10-22
申请号：US16755735
申请日：2018-10-04
发明人： Toru OKADA , Kazuo YAMAGUCHI , Keita KANAI
摘要： Provided is a reduction gear comprising a bearing state detection device capable of detecting the state of a rolling bearing that rotates integrally with an output shaft and an output gear during power transmission. The bearing state detection device comprises: a plurality of displacement sensors (1, 2, 11, 12), which are disposed in mutually differing positions at the sides of output gears (26, 27) having helical threads (35a, 37a) formed in the outer peripheral surfaces, and which detect the amount of axial displacement of the side surfaces of the output gears; and a processing unit (5), which determines the amount of tilt of the gears (26, 27) on the basis of the amount of displacement detected by the plurality of displacement sensors (1, 2, 11, 12) during rotation of the output gears (26, 27) when the output gears are linked to an output shaft (25) by a linking mechanism (32).
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公开(公告)号：US20200292418A1
公开(公告)日：2020-09-17
申请号：US16332475
申请日：2017-08-30
发明人： Toru OKADA
IPC分类号： G01M17/02 , B60C19/00 , G01M17/007
摘要： A device for evaluating tire rolling resistance, the device includes: load rolls having surfaces that simulate a road surface on which a tire is to travel; a moving mechanism; a load sensor; a position sensor; a phase difference calculation unit; and a rolling resistance evaluation unit. The load rolls are two or more load rolls disposed side by side and are smaller in diameter than the tire.
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10.发明申请THRUST LOAD MEASURING DEVICE FOR SEALED MIXING DEVICE AND CALIBRATION METHOD FOR SAME 有权用于密封混合装置的THRUST负载测量装置和用于其的校准方法公开(公告)号：US20160297101A1
公开(公告)日：2016-10-13
申请号：US15035978
申请日：2014-12-09
发明人： Toru OKADA , Yusuke TANAKA
CPC分类号： B29B7/283 , B01F15/00201 , B29B7/18 , B29B7/183 , B29B7/246 , B29B7/263 , B29C47/0801 , B29C47/0803 , G01L5/12 , G01L25/00
摘要： The relative displacement in the axial direction between an outer ring fixing member or casing and an inner ring fixing member or rotor is determined, said outer ring fixing member being a member for affixing an outer ring of a bearing on one side, and said inner ring fixing member being a member for affixing an inner ring of the bearing on the one end side. When calculating a thrust load acting on the rotor by multiplying the determined relative displacement by a conversion coefficient, an axial force measuring bolt is used as a tightening bolt for affixing the bearing on the one end side, said axial force measuring bolt enabling measurement of a load acting in the axial direction. The axial force measured by the axial force measuring bolt and the relative displacement during measurement of the axial force are used to calibrate the conversion coefficient.
摘要翻译： 确定外圈固定构件或壳体与内圈固定构件或转子之间的轴向方向上的相对位移，所述外圈固定构件是用于将轴承的外圈固定在一侧的构件，并且所述内圈 固定构件是用于在一端侧固定轴承的内圈的构件。 当通过将确定的相对位移乘以转换系数来计算作用在转子上的推力载荷时，使用轴向力测量螺栓作为用于将轴承固定在一端侧的紧固螺栓，所述轴向力测量螺栓能够测量 沿轴向作用的载荷。 由轴向力测量螺栓测量的轴向力和轴向力测量期间的相对位移用于校准转换系数。
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