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公开(公告)号：US10563719B2
公开(公告)日：2020-02-18
申请号：US15527130
申请日：2016-10-17
发明人： Takayuki Sawa , Hideki Kitada , Yasuhiko Ura , Takehiro Nishimura , Keiichiro Kamura , Yoshi Sato
摘要： An air spring includes an outer cylindrical member, an inner cylindrical member, a diaphragm, the diaphragm providing an internal space between the outer cylindrical member and the inner cylindrical member, a stopper assembly arranged in the internal space as being pivotable over the inner cylindrical member, a handle for pivoting the stopper assembly over the inner cylindrical member, a guide member attached to the handle as rising from the handle, a positioning member attached by insertion in a guide hole in the guide member for positioning of the handle, a positioning hole provided in the inner cylindrical member which can receive the positioning member, and a holding mechanism in the inner cylindrical member. A position of the stopper assembly with respect to the inner cylindrical member is determined by inserting the positioning member in the positioning hole.
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公开(公告)号：US10449979B2
公开(公告)日：2019-10-22
申请号：US15528547
申请日：2016-10-17
发明人： Takayuki Sawa , Hideki Kitada , Yasuhiko Ura , Takehiro Nishimura , Keiichiro Kamura , Yoshi Sato
摘要： An air spring includes an outer cylindrical member, an inner cylindrical member combined with the outer cylindrical member, a diaphragm coupling the outer cylindrical member and the inner cylindrical member to each other, the diaphragm providing an internal space between the outer cylindrical member and the inner cylindrical member, a stopper assembly arranged in the internal space as being pivotable over the inner cylindrical member, the stopper assembly allowing suppression of movement of the outer cylindrical member toward the inner cylindrical member more than necessary, a pivoting mechanism pivoting the stopper assembly over the inner cylindrical member, and a space portion provided between the stopper assembly and the inner cylindrical member, the space portion allowing lowering in resistance in pivot of the stopper assembly.
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公开(公告)号：US10086850B2
公开(公告)日：2018-10-02
申请号：US15124133
申请日：2015-03-12
摘要： Included are: a first supporting member; a second supporting member arranged to be spaced away from the first supporting member in a main load direction; an elastically deformable diaphragm forming a closed space by connecting the first supporting member and the second supporting member; a detection unit detecting a change of a relative distance between the first supporting member and the second supporting member, and producing a mechanical output of the change of the relative distance; and a controlling member capable of discharging air in an inside of the closed space S to an outside of the closed space S in response to the mechanical output from the detection unit. Thereby, an air spring having a mechanism for suppressing an abnormal rise of a vehicle height without deteriorating the diaphragm can be provided.
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公开(公告)号：US10435044B2
公开(公告)日：2019-10-08
申请号：US15526396
申请日：2016-10-17
发明人： Takayuki Sawa , Hideki Kitada , Yasuhiko Ura , Takehiro Nishimura , Keiichiro Kamura , Yoshi Sato
摘要： An air spring includes: an outer cylindrical member; an inner cylindrical member; a diaphragm which couples the outer and inner cylindrical members and forms an internal space; a stopper assembly disposed in the internal space; and a pivoting mechanism which causes this stopper assembly to pivot on the inner cylindrical member. The stopper assembly has a stopper portion protruding towards the outer cylindrical member, and the outer cylindrical member has as a set four or more protrusion portions provided at a position to face the stopper portion and protruding toward the inner cylindrical member. Each of the protrusion portions belonging to the set is disposed successively and also different in height. Each of the protrusion portions belonging to the set is arranged without having a protrusion portion belonging to the set smallest in height adjacent to a protrusion portion belonging to the set largest in height.
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公开(公告)号：US10597050B2
公开(公告)日：2020-03-24
申请号：US15528551
申请日：2016-10-17
发明人： Takayuki Sawa , Hideki Kitada , Yasuhiko Ura , Takehiro Nishimura , Keiichiro Kamura , Yoshi Sato
摘要： An air spring includes an outer cylindrical member, an inner cylindrical member combined with the outer cylindrical member, a diaphragm coupling the outer cylindrical member and the inner cylindrical member to each other, the diaphragm providing an internal space between the outer cylindrical member and the inner cylindrical member, a first element located on a side of the internal space in at least one of the outer cylindrical member and the inner cylindrical member and defining a part of the internal space, a second element adjacent to the first element, the second element defining a part of the internal space, and a cover layer covering a boundary portion between the first element and the second element.
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公开(公告)号：US10988150B2
公开(公告)日：2021-04-27
申请号：US16063338
申请日：2016-11-24
摘要： A state monitoring device for use in a train set constituted by coupling cars each including a carbody and a pair of bogies arranged at both respective longitudinal direction end portions of the carbody and supporting the carbody includes: sensors provided at the respective bogies and configured to detect state information of devices provided at the bogies; wireless transmitters provided at the respective bogies and configured to wirelessly transmit sensor signals containing the detected state information; and at least one wireless receiver configured to receive the sensor signals wirelessly transmitted from the wireless transmitters.
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公开(公告)号：US10964131B2
公开(公告)日：2021-03-30
申请号：US15548798
申请日：2016-01-25
发明人： Masayuki Mitsue , Teruhisa Nakaoka , Tomohei Kobayashi , Katsuyuki Kawashima , Takehiro Nishimura , Yousuke Tsumura
摘要： A state monitoring device for a plate spring mounted on a railcar bogie is configured to monitor a state of the plate spring, the plate spring including fiber-reinforced resin containing electrically conductive reinforced fibers containing reinforced fibers extending in a longitudinal direction of the plate spring. The state monitoring device includes: an electrode pair provided at both width direction side end surfaces of the plate spring and sandwiching the plate spring, a width direction of the plate spring being perpendicular to the longitudinal direction of the plate spring and a thickness direction of the plate spring; and a measuring unit electrically connected to the electrode pair and configured to measure an electrical characteristic of the plate spring.
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公开(公告)号：US10730533B2
公开(公告)日：2020-08-04
申请号：US15772111
申请日：2016-10-20
发明人： Takehiro Nishimura , Yoshi Sato , Yukitaka Taga , Yousuke Tsumura , Keiichiro Kamura , Fumikazu Kounoike , Koichi Murata , Francois Olivier Uchida , Yuta Yoshimatsu
摘要： A railcar steering bogie includes: a bogie frame supporting a bolster such that the bolster is swingable relative to bogie frame about a vertical axis; two wheelsets; axle box suspensions including respective axle beams coupling corresponding axle boxes to bogie frame, the axle boxes accommodating respective bearings supporting corresponding axles; and a steering mechanism steering at least one of the two wheelsets in accordance with the bolster's swinging relative to the bogie frame. The steering mechanism includes: a steering lever configured to turn relative to the bogie frame about fulcrum axis; a coupling link coupling the bolster and steering lever and configured to operate in conjunction with the bolster's swinging relative to the bogie frame; and at least one steering link coupling steering lever and axle beam and configured to steer the corresponding wheelset by displacing corresponding axle box through the corresponding axle beam in conjunction with steering lever's turning.
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公开(公告)号：US10427696B2
公开(公告)日：2019-10-01
申请号：US14912717
申请日：2014-10-06
发明人： Takehiro Nishimura , Shunichi Nakao , Tomohei Kobayashi , Yousuke Tsumura , Mamoru Nishio , Daisuke Watanabe
摘要： A method of producing plate springs for a railcar bogie, the plate springs each extending in a car longitudinal direction and elastically supporting a cross beam while being supported by an axle box in the railcar bogie, the axle box accommodating a bearing for an axle, the method includes: a molding step of molding a mother plate made of fiber-reinforced resin, the mother plate including a layer made of continuous fibers oriented in a first direction when viewed from a normal direction of a main surface of the mother plate; a cut position determining step of determining positions of a plurality of parallel cut lines for cutting the mother plate along the first direction; and a cutting step of cutting the mother plate along the plurality of cut lines to take out the plate springs made of the fiber-reinforced resin.
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公开(公告)号：US09493174B2
公开(公告)日：2016-11-15
申请号：US14382300
申请日：2013-01-11
摘要： A railcar bogie includes a cross beam to support a carbody of a railcar, a pair of front and rear axles between which the cross beam is located and arranged, respectively, in front of and behind the cross beam in a railcar longitudinal direction and extending in a railcar width direction, bearings provided at both railcar width direction sides of the axles to rotatably support the axles, axle boxes to respectively accommodate the bearings, and a plate spring extending in the railcar longitudinal direction to support one of both railcar width direction end portions of the cross beam and including both longitudinal direction end portions supported by the axle boxes. The plate spring unit includes a plurality of plate springs to elastically deform in an upper-lower thickness direction. The plate springs are arranged in a line in a width direction perpendicular to the longitudinal direction and the thickness direction.
摘要翻译： 轨道车转向架包括横梁以支撑轨道车辆的车身，一对前轴和后轴，横梁之间分别布置在横梁的前后并且在轨道车纵向方向上延伸 设置在车轴宽度方向侧的轴承，以可旋转地支撑轴，轴箱以分别容纳轴承;以及板弹簧，其在轨道车辆纵向方向上延伸以支撑两个轨道车宽度方向端部中的一个 并且包括由轴箱支撑的两个纵向端部。 板簧单元包括多个板簧，以在上下厚度方向弹性变形。 板簧在与长度方向和厚度方向垂直的宽度方向上排成一列。
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