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1. 发明申请

US20150217668A1 Dump Truck and Load Transmission Structure for Same 有权
标题翻译：自卸卡车和负载传输结构相同
公开(公告)号：US20150217668A1
公开(公告)日：2015-08-06
申请号：US14422758
申请日：2013-08-06
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： Yasuki Kita , Atsushi Kitaguchi , Takayuki Satou , Kazunori Ishihara , Takashi Sasaki , Takeshi Iwaki , Jun Ikeda
IPC分类号： B60P1/04 , B60P1/28 , F16F1/36
CPC分类号： B60P1/04 , B60P1/283 , B60P1/286 , F16F1/36 , F16F1/44
摘要： Stresses are decreased at joints of a support structure disposed on a body of a dump truck. The dump truck includes a body frame (2), a body (2), a support structure (12) disposed on the body and supported by the body frame, and load transmission structures configured to transmit a load from the support structure to the body frame and, to transmit a reaction force from the body frame to the support structure. The support structure has a plurality of vertical plates (12a, 12b) and a bottom plate (12c). The vertical plates are arranged along a direction in which the reaction force is received from the body frame, and the bottom plate is maintained in upward contact with these vertical plates. The bottom plate is divided into first areas and a second area. The first areas include areas where the bottom plate is in contact with the vertical plates, and the second area is an area other than the first areas. The load transmission structures are configured to transmit the reaction force from the body frame such that a reaction force to be transmitted to each of the first areas becomes greater than a reaction force to be transmitted to the second area.
摘要翻译：在设置在自卸车车身上的支撑结构的接头处，应力减小。自卸车包括主体框架（2），主体（2），设置在主体上并由主体框架支撑的支撑结构（12），以及构造成将负载从支撑结构传递到主体的负载传输结构并且将反作用力从身体框架传递到支撑结构。支撑结构具有多个垂直板（12a，12b）和底板（12c）。垂直板沿着从主体框架接收反作用力的方向布置，并且底板保持与这些垂直板向上接触。底板分为第一区域和第二区域。第一区域包括底板与垂直板接触的区域，第二区域是除了第一区域之外的区域。负载传递结构被配置成从主体框架传递反作用力，使得要传递到每个第一区域的反作用力变得大于要传递到第二区域的反作用力。

2. 发明授权

US11554760B2 Brake system 有权
公开(公告)号：US11554760B2
公开(公告)日：2023-01-17
申请号：US16490249
申请日：2018-07-27
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： Takaaki Tanaka , Takanobu Ikari , Yasutaka Tsuruga , Takayuki Sato , Takashi Sasaki
IPC分类号： B60T7/16 , B60T13/14 , B60T13/68 , B60T17/18 , F15B20/00
摘要： An automatic brake subsystem (24) includes second accumulators (25F, 25R), a front second line (28) and a rear second line (29), second brake valves (30F, 30R), a first solenoid switching valve (32), first shuttle valves (33F, 33R), and a controller 37. A second solenoid switching valve (34F) and a pressure sensor (35F) are provided in the front second line (28), and a second solenoid switching valve (34R) and a pressure sensor (35R) are provided in the rear second line (29). In a case where it is determined that each of the second brake valve (30F, 30R) is not performing normally based upon a pressure of a hydraulic fluid detected by each of the pressure sensors (35F, 35R) and an operating signal supplied to the first solenoid switching valve (32) or each of the second brake valves (30F, 30R), a controller 37 performs control to switch each of the second solenoid switching valves (34F, 34R).

3. 发明授权

US11124166B2 Vehicular brake system 有权
公开(公告)号：US11124166B2
公开(公告)日：2021-09-21
申请号：US16330379
申请日：2017-09-26
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： Takaaki Tanaka , Takanobu Ikari , Yasutaka Tsuruga , Takayuki Satou , Takashi Sasaki
IPC分类号： B60T13/00 , B60T11/28 , B60T7/12 , B60T13/14 , B60T17/04
摘要： A hydraulic oil resupply device (40) is provided between first accumulators (15F, 15R) in a manual braking operation circuit (11) and a second accumulator (25) in an automatic brake circuit (24). The hydraulic oil resupply device (40) resupplies hydraulic oil accumulated in the second accumulator (25) to the first accumulators (15F, 15R) at the operating of a manual braking operation by an operator. This configuration can suppress a rising speed of a brake pressure at the manual operation braking from being slow. Accordingly, in a vehicular brake system, it is possible to enhance a braking capability by the manual braking operation and improve the reliability.

4. 发明授权

US09630544B2 Dump truck and load transmission structure for same 有权
公开(公告)号：US09630544B2
公开(公告)日：2017-04-25
申请号：US14422758
申请日：2013-08-06
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： Yasuki Kita , Atsushi Kitaguchi , Takayuki Satou , Kazunori Ishihara , Takashi Sasaki , Takeshi Iwaki , Jun Ikeda
IPC分类号： B60P1/04 , B60P1/28 , F16F1/36 , F16F1/44
CPC分类号： B60P1/04 , B60P1/283 , B60P1/286 , F16F1/36 , F16F1/44
摘要： Stresses are decreased at joints of a support structure disposed on a body of a dump truck. The dump truck includes a body frame (2), a body (2), a support structure (12) disposed on the body and supported by the body frame, and load transmission structures configured to transmit a load from the support structure to the body frame and, to transmit a reaction force from the body frame to the support structure. The support structure has a plurality of vertical plates (12a, 12b) and a bottom plate (12c). The vertical plates are arranged along a direction in which the reaction force is received from the body frame, and the bottom plate is maintained in upward contact with these vertical plates. The bottom plate is divided into first areas and a second area. The first areas include areas where the bottom plate is in contact with the vertical plates, and the second area is an area other than the first areas. The load transmission structures are configured to transmit the reaction force from the body frame such that a reaction force to be transmitted to each of the first areas becomes greater than a reaction force to be transmitted to the second area.

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