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1. 发明申请

US20180274423A1 Construction Machine 审中-公开
公开(公告)号：US20180274423A1
公开(公告)日：2018-09-27
申请号：US15757235
申请日：2016-09-07
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： Hayato KUBOTA , Kazuhiko MIZOGUCHI , Hiroki SUGAWARA , Shigeru HIRASAWA
IPC分类号： F01N3/20 , F01P5/04 , F01P1/06 , E02F9/08 , E02F9/18 , B60K11/02 , B60K13/04
CPC分类号： F01N3/2066 , B60K11/02 , B60K13/04 , E02F3/32 , E02F9/00 , E02F9/0866 , E02F9/0883 , E02F9/0891 , E02F9/18 , F01N3/08 , F01N2610/02 , F01N2610/1406 , F01P1/06 , F01P5/04 , F01P2001/005 , Y02A50/2325
摘要： On a revolving frame (5), a counterweight (6), an engine (7), a cooling fan (9), a heat exchanger (10), an exterior cover (14) forming a machine room (15) on the revolving frame (5), an exhaust gas purifying device (16) including a urea selective reduction catalyst (24), a urea water injection valve (26) injecting a urea water which is a reducing agent toward an upstream side of the urea selective reduction catalyst (24), and a urea water supply line (28) through which the urea water to be supplied to the urea water injection valve (26) flows are provided. A horizontal support member (34) supporting the exterior cover (14) is provided on a front side of the counterweight (6), and a heat shield cover (38) is mounted on the horizontal support member (34). A line accommodating space (41) is formed between the horizontal support member (34) and the heat shield cover (38), and a urea water supply line (28) for shielding heat from the engine (7) is accommodated in this line accommodating space (41).

2. 发明申请

US20180238021A1 Construction Machine 审中-公开
公开(公告)号：US20180238021A1
公开(公告)日：2018-08-23
申请号：US15754426
申请日：2016-10-03
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： Takuya INUKAI , Yasuhiko YOSHINO , Masao KARIYA , Kazuhiko MIZOGUCHI
IPC分类号： E02F9/08 , E02F3/32 , B60K11/02 , F01N13/00
摘要： A construction machine according to the present invention includes electric components 20 and a cover member 21, and includes an inflow side opening 25 that allows cooling air generated by the cooling fan 16 to flow therein, and an outflow side opening 26 that allows the cooling air flowing in from the inflow side opening 25 to flow out, in which the cover member 21 is formed such that the inflow side opening 25 expands toward an upstream side of a flow of the cooling air with respect to a space formed between the cover member 21 and the post-treatment device 17, and having the electric components 20 therein, and a space between the post-treatment device 17 and the cover member 21 narrows from the inflow side opening 25 toward the outflow side opening 26.

3. 发明申请

US20220170244A1 WORK MACHINE 有权
公开(公告)号：US20220170244A1
公开(公告)日：2022-06-02
申请号：US17436478
申请日：2020-04-21
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： Naoki HAGIWARA , Kazuhiko MIZOGUCHI , Keiichirou ANAHARA
IPC分类号： E02F9/26 , E02F9/12 , E02F9/24 , E02F9/20
摘要： A work machine includes a sensor that detects a retroreflective material and other objects in a distinguishable manner, a solenoid valve that restricts an operation signal outputted from an operation device, and a controller configured to control the solenoid valve based on the detection result. The controller controls the solenoid valve based on information concerning whether or not the object detected by the sensor is a retroreflective material and information concerning whether a position of the object detected by the sensor is in a first detection region at least partially including an operation range of a machine body or a second detection region located adjacent to and above the first detection region. This makes it possible to restrain contact between the work machine and an obstacle while restraining a reduction in a detection range due to exclusion of a structure of the work machine from an object of detection.

4. 发明申请

US20210079624A1 Work Machine 有权
公开(公告)号：US20210079624A1
公开(公告)日：2021-03-18
申请号：US16979423
申请日：2019-09-26
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： Katsuaki KODAKA , Ryohei FUKUCHI , Kazuhiko MIZOGUCHI , Naoki HAGIWARA
IPC分类号： E02F9/22 , E02F9/20 , E02F9/12 , E02F9/26 , E02F9/24 , F15B15/26 , F15B15/02 , F15B15/20
摘要： To provide a work machine that can stop unexpected operation of actuators faster than it actually occurs even if unintended operation occurs at the time of gate lock lever switching that leads to such unexpected operation. In the work machine, a controller switches a lock valve from a lock position to a release position in a case where a lock operation device is operated from a permission position to a prohibition position; decides, on the basis of a result of detection by a pressure sensor, whether or not a pilot hydraulic fluid has been output from a pilot valve until first time elapses after the lock valve is switched to the release position; keeps the lock valve at the lock position if it is decided that the pilot hydraulic fluid has been output until the first time elapses; and switches the lock valve from the lock position to the release position if it is decided that the pilot hydraulic fluid has not been output until the first time elapses, and second time elapses.

5. 发明申请

US20220290411A1 WORK MACHINE AND PERIPHERY MONITORING SYSTEM 有权
公开(公告)号：US20220290411A1
公开(公告)日：2022-09-15
申请号：US17641536
申请日：2020-10-28
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： Keiichirou ANAHARA , Naoki HAGIWARA , Kazuhiko MIZOGUCHI , Akihiro NARAZAKI , Shinji NISHIKAWA
IPC分类号： E02F9/26 , E02F9/24 , E02F9/22 , E02F9/20
摘要： In a hydraulic excavator 1 including a machine body 1B and a front work device 1A, when an object is detected by sensors 13a, 13b, and 13c for detecting an object around the machine body 1B, when operation limiting control for limiting the operation of at least one of the machine body 1B and the front work device 1A is enabled, or when an operation device 4 is operated, the detection of the object is notified to an operator by a first state warning, and when the operation limiting control is enabled and when the operation device 4 is not operated, the detection of the object is notified to the operator by a second state warning that is weaker in warning intensity than the first state warning. Accordingly, the botheration for the operator can be suppressed while securing the effectiveness of an alarm in periphery monitoring, and the safety performance can be enhanced.

6. 发明申请

US20180238022A1 Construction Machine 审中-公开
公开(公告)号：US20180238022A1
公开(公告)日：2018-08-23
申请号：US15753029
申请日：2016-09-02
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： Shosei KUROSAKA , Hiroki SUGAWARA , Kazuhiko MIZOGUCHI
IPC分类号： E02F9/08 , B60K13/04 , B60K11/04 , F01N3/20
CPC分类号： E02F9/0883 , B60K11/04 , B60K13/04 , E02F9/0866 , F01N3/08 , F01N3/2066 , F01N2590/08 , F01N2610/02 , F01N2610/1406 , F01N2610/1433 , F01N2610/1453
摘要： A reducing agent tank (11) is disposed in a first space (SP1) on an upstream side of cooling air with respect to a heat exchanger (21), and an engine (13) and an injector (14) are disposed in a second space (SP2) on a downstream side of the cooling air with respect to the heat exchanger (21). The heat exchanger is placed on a bracket (30) having a first side plate section (32), a second side plate section (33), and a top plate section (31), and a first cutout section (34) for allowing a reducing agent hose (25) to be inserted, a second cutout section (35) for allowing the reducing agent hose to be inserted are provided in the first side plate section and the second side plate section, respectively, and a portion of the reducing agent hose passes through the first cutout section and the second cutout section to be wired in an internal space (SP3) of the bracket.

7. 发明申请

US20160215477A1 Construction Machine 有权
标题翻译：施工机械
公开(公告)号：US20160215477A1
公开(公告)日：2016-07-28
申请号：US14915943
申请日：2015-01-14
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： Hiroshi KUMAGAI , Kazuhiko MIZOGUCHI , Masao NAKAMURA , Hideto ISHIBASHI
IPC分类号： E02F9/08 , B60K13/04
CPC分类号： E02F9/0866 , B60K13/04 , B60Y2200/412 , E02F9/0816 , F01N13/009 , F01N13/1805 , F01N2470/18 , F01N2590/08
摘要： A post-treatment, device mounting frame (20) on which an exhaust gas post-treatment device (13) is mounted is constituted by a front mounting leg (21), a rear mounting leg (24), and a deck (27) connecting the front and rear mounting legs (21) and (24) to each other. A vertical leg part (22) of the front mounting leg (21) is mounted on a front vertical leg part mounting plate (5F) of a right front extension beam (5E2). A lateral leg part (23) of the front mounting leg (21) is mounted on a front lateral leg part mounting plate (5M) of a right front engine support bracket (5K). A vertical leg part (25) of the rear mounting leg (24) is mounted on a rear vertical leg part mounting plate (5G) of a right rear extension beam (5E3). A lateral leg part (26) of the rear mounting leg (24) is mounted on a rear lateral leg part mounting plate (5N) of a right rear engine support bracket (5L). Therefore, the post-treatment device mounting frame (20) is firmly mounted in a state of four-point support on a revolving frame (5).
摘要翻译：安装有排气后处理装置（13）的后处理装置安装框架（20）由前安装脚（21），后安装脚（24）和甲板（27）构成，将前后安装脚（21）和（24）彼此连接。前安装腿（21）的垂直腿部（22）安装在右前延伸梁（5E2）的前垂直腿部安装板（5F）上。前安装脚（21）的侧腿部（23）安装在右前发动机支撑支架（5K）的前侧腿部安装板（5M）上。后安装腿（24）的垂直腿部（25）安装在右后延伸梁（5E3）的后垂直腿部安装板（5G）上。后安装腿（24）的侧腿部（26）安装在右后发动机支撑支架（5L）的后侧腿部安装板（5N）上。因此，后处理装置安装框架20以四点支撑的状态牢固地安装在旋转框架5上。

8. 发明申请

US20210310218A1 HYDRAULIC EXCAVATOR 有权
公开(公告)号：US20210310218A1
公开(公告)日：2021-10-07
申请号：US17273803
申请日：2019-10-11
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： Naoki HAGIWARA , Kazuhiko MIZOGUCHI , Shigeru HIRASAWA , Keitaro ITO , Keiichirou ANAHARA
IPC分类号： E02F9/26 , E02F9/24 , B60Q5/00
摘要： A hydraulic excavator is provided which makes it possible to allow an operator to surely recognize an alarm that notifies the operator of non-wearing of a seatbelt even when a work is performed in a situation in which a moving object is present around the machine. A controller outputs, when a moving object is detected and wearing of a seatbelt is detected by a seatbelt detection device, a first alarm through a notification device, outputs, when the moving object is not detected and non-wearing of the seatbelt is detected by the seatbelt detection device, a second alarm through the notification device, and outputs, when the moving object is detected and non-wearing of the seatbelt is detected by the seatbelt detection device, the second alarm preferentially over the first alarm through the notification device.

9. 发明申请

US20180238020A1 Construction Machine 审中-公开
公开(公告)号：US20180238020A1
公开(公告)日：2018-08-23
申请号：US15752747
申请日：2016-03-10
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： Shigeru HIRASAWA , Takeshi HIBIYA , Toshikazu KANNO , Kazuhiko MIZOGUCHI
IPC分类号： E02F9/08 , B60K11/04 , E02F3/32
CPC分类号： E02F9/0866 , B60K11/04 , B60K11/06 , B60K11/08 , B60K15/063 , B60K15/067 , B60K2015/03414 , B60K2015/03421 , B60Y2200/412 , E02F3/32 , E02F9/0833 , E02F9/0883 , E02F9/0891
摘要： To make a reserve tank be hardly affected by the heat of an engine. An engine room (5) is totally covered by an exterior cover (9) including openings (44) at the upper surface, and includes in the inside thereof an engine (13), a radiator (24), a cooling fan (20) for sucking external air and cooling the radiator, and a reserve tank (30) for storing cooling water of the engine. The reserve tank (30) is disposed at a position above the engine (13) and facing the openings (44) and a position on the upstream side of the flow of the air with respect to the openings (44).

10. 发明申请

US20220341129A1 CONSTRUCTION MACHINE 有权
公开(公告)号：US20220341129A1
公开(公告)日：2022-10-27
申请号：US17640860
申请日：2020-10-28
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： Keiichirou ANAHARA , Naoki HAGIWARA , Kazuhiko MIZOGUCHI
IPC分类号： E02F9/20 , E02F9/24 , E02F9/26
摘要： There is provided a construction machine capable of performing hanging work according to the intention of an operator. A hydraulic excavator 1 includes: an operating lever 420 for performing a turning operation; the cameras 61, 62, 63 for detecting any obstacle; and a controller 8 for controlling the operations of a vehicle body and a front working device 5. In the hydraulic excavator 1, in a case where the obstacle is detected by any of the cameras 61, 62, 63, the controller 8 performs an operation limiting process. The hydraulic excavator 1 further includes a hook 53A, a mode selector switch 64 for switching the operation to a hanging work mode. In a case where the obstacle is detected by any of the cameras 61, 62, 63, the controller 8 disables the operation limiting process and controls the operation of the vehicle body or the front working device 5 according to the manipulated variable of the operating lever 420.

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