| 发明名称 | Hydraulic oil tank for construction machine | ||
| 摘要 | A hydraulic oil tank capable of assuring strength at a gage installation part and bringing a gage close to a hole portion of an exterior cover while maintaining a predetermined clearance between the exterior cover and the hydraulic oil tank is provided. The hydraulic oil tank, mounted on a swing frame of a hydraulic excavator upperstructure, has a side wall opposing an upperstructure exterior cover with a predetermined clearance, and is adapted to store hydraulic oil to be fed to hydraulic actuators. The hydraulic oil tank has a gage enabling a visual check on the hydraulic oil level in the tank through a hole portion in the exterior cover. The gage is installed in the tank side wall, with an internally-hollow protruding portion protruding toward the exterior cover hole portion and a transparent window portion arranged at an end of the protruding portion. | ||
| 申请公布号 | US9062691(B2) | 申请公布日期 | 2015.06.23 |
| 申请号 | US201214001125 | 申请日期 | 2012.02.10 |
| 申请人 | Hitachi Construction Machinery Co., Ltd. | 发明人 | Kawamoto Junya;Maeda Kohei;Kamakura Kentaro |
| 分类号 | G01F23/00;F15B1/26;G01F9/00;E02F9/08;E02F3/32;E02F9/26 | 主分类号 | G01F23/00 |
| 代理机构 | Crowell & Moring LLP | 代理人 | Crowell & Moring LLP |
| 主权项 | 1. A hydraulic oil tank for a construction machine having an upperstructure provided with an exterior cover, working equipment attached to the upperstructure, and hydraulic actuators comprised of a swing motor for driving the upperstructure and an actuator for driving the working equipment, said hydraulic oil tank being mounted on a swing frame of the upperstructure, having a side wall opposing the exterior cover of the upperstructure with a predetermined clearance therebetween, being made of synthetic resin and adapted to store hydraulic oil to be fed to the hydraulic actuators, and having a gage that enables a visual check on a level of the hydraulic oil in the hydraulic oil tank through a hole portion formed in the exterior cover, wherein: the gage is installed in the side wall of the hydraulic oil tank, and has an internally-hollow protruding portion formed protruding in a direction toward the hole portion of the exterior cover and a window portion comprised of a transparent member arranged at an end of the protruding portion and enabling the visual check on the level of the hydraulic oil in the hydraulic oil tank. | ||
| 地址 | Tokyo JP | ||