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1. 发明专利

JP2001059237A SLEWING TYPE CONSTRUCTION MACHINE 失效
公开(公告)号：JP2001059237A
公开(公告)日：2001-03-06
申请号：JP23441899
申请日：1999-08-20
申请人： HITACHI CONSTRUCTION MACHINERY , HOKUETSU KOGYO CO
发明人： KOBORI SHINJI , SATO SHINICHI , SUGAYA MAKOTO , KUNO MAKOTO , TAKEUCHI YOSHIRO
IPC分类号： E02F9/00 , B66C23/44 , B66C23/84
摘要： PROBLEM TO BE SOLVED: To efficiently dispose an oil storage tank, to improve the degree of freedom of the arrangement of each equipment and to miniaturize a revolving super structure. SOLUTION: A battery 15 is positioned on the front side of an engine 8 and disposed on the right side of a tube 6A for a rotating cylinder 6, a hydraulic fluid tank 16 is disposed so as to cover the tube 6A base-end side of the rotating cylinder 6 and the upper side of the battery 15, and a fuel tank 18 adjoins the front side of the hydraulic fluid tank 16 and arranged so as to be crossed over the upper side of the front end side of the tube 6A of the rotating cylinder 6. Accordingly, the hydraulic fluid tank 16 can be disposed by utilizing a space on the upper side of the rotating cylinder 6 and the battery 15, and the fuel tank 18 can be arranged by utilizing a space on the upper side of the rotating cylinder 6. Thus, the battery 15, the hydraulic fluid tank 16, the fuel tank 18 or the like can be disposed efficiently on a revolving super structure.

2. 发明专利

JPH10331657A CIRCULAR CONSTRUCTION MACHINE 失效
公开(公告)号：JPH10331657A
公开(公告)日：1998-12-15
申请号：JP16050597
申请日：1997-06-03
申请人： HITACHI CONSTRUCTION MACHINERY , HOKUETSU KOGYO CO
发明人： KUNO MAKOTO , NISHIMURA KOJI , IWASHITA HIROSHI , ENDO SHINICHIRO
IPC分类号： E02F9/16 , B60K11/04 , F02B77/00
摘要： PROBLEM TO BE SOLVED: To prevent breakage of a radiator even in the case when a roof support member is deformed as well as to support the radiator by the roof support member. SOLUTION: This construction machine is provided with a fragile bracket 21 between a right front leg body 19 of a canopy support member 16 and a radiator 9, and the fragile bracket 21 is formed fragile so as to constantly support the radiator 9 against the canopy support member 16, to deform or to be broken when large external force works. Consequently, it is possible to prevent oscillation of the radiator 9 by supporting the radiator 9 by the fragile bracket 21 at the normal time of travelling and working. In the meantime, it is possible to prevent breakage of the radiator 9 by deforming or breaking the fragile bracket 21 in the case when large external force works on a canopy 25 due to contact with an obstruction and overturning and the canopy support member 16 is deformed.

3. 发明专利

JP2003252067A CONSTRUCTION MACHINERY 审中-公开
公开(公告)号：JP2003252067A
公开(公告)日：2003-09-09
申请号：JP2002057902
申请日：2002-03-04
申请人： HITACHI CONSTRUCTION MACHINERY
发明人： KUNO MAKOTO , NISHIMURA KOJI , YAMADA KAZUNORI , MOTOZU MAKOTO , ISHIKAWA NAOHIRO
IPC分类号： E02F9/00 , B60K11/04 , F01P3/18 , F01P11/10
摘要： PROBLEM TO BE SOLVED: To miniaturize a heat exchanger and a cooling fan by enhancing the cooling efficiency of a radiator and an oil cooler. SOLUTION: The radiator 21 is fitted to a rear frame plate part 14D of a cooling air duct 14, and the oil cooler 22 is fitted to a bottom frame plate part 14F. Since the radiator 21 and the oil cooler 22 are disposed without overlapping on different positions of the cooling air duct 14, the cooling air can be sufficiently fed over the entire surface of the radiator 21 and the oil cooler 22, and the radiator and the oil cooler can be miniaturized. Further, a flow separation plate 16 to separate the cooling air flow direction into the direction of an arrow A on the radiator 21 side and the direction of an arrow B on the coil cooler 22 side is provided in the cooling air duct 14, and the cooling air of adequate quantity can be respectively fed to the radiator 21 and the oil cooler 22. COPYRIGHT: (C)2003,JPO

4. 发明专利

JP2004009800A CONSTRUCTION MACHINE 审中-公开
公开(公告)号：JP2004009800A
公开(公告)日：2004-01-15
申请号：JP2002163219
申请日：2002-06-04
申请人： HITACHI CONSTRUCTION MACHINERY
发明人： KUNO MAKOTO , YAMADA KAZUNORI , MOTOZU MAKOTO , ISHIKAWA NAOHIRO
IPC分类号： E02F9/00 , B60K11/04 , B66C13/00 , F01P5/02 , F01P5/04 , F01P5/06 , F01P11/10
摘要： PROBLEM TO BE SOLVED: To supply sufficient cooling air toward a heat exchanger from a centrifugal fan. SOLUTION: A motor 27 constituting a multiblade fan 22 is arranged in a position where the axis of an output shaft 27A is decentered from the axis of a rotating shaft 26A of an impeller 26. This arrangement can restrain the motor 27 from obstructing the flow of air sucked into a fan casing 23 through a suction port 24, and a large quantity of air can be sucked into the fan casing 23 from the suction port 24. As a result, sufficient cooling air can be supplied toward a radiator 20 and an oil cooler 21 from the multiblade fan 22, and engine cooling water, an operating fluid, or the like can be efficiently cooled. COPYRIGHT: (C)2004,JPO

5. 发明专利

JP2002061222A SLEWING TYPE CONSTRUCTION MACHINE 失效
公开(公告)号：JP2002061222A
公开(公告)日：2002-02-28
申请号：JP2000253624
申请日：2000-08-24
申请人： HITACHI CONSTRUCTION MACHINERY
发明人： KOBORI SHINJI , KUNO MAKOTO , SATO SHINICHI
IPC分类号： E02F9/00 , E02F9/16
摘要： PROBLEM TO BE SOLVED: To improve an assembling workability and productivity by assembling a driver's seat or the like with the engine front cover separately from the main frame. SOLUTION: A driver's seat 56, an engine control lever 58, a control box 59, an air cleaner 60, a controller 65, lift lever 67 and a battery are sub- assembled and a driver's seat sub-assembly body 41 are formed to the engine front cover 42, and the engine front cover 42 of this driver's seat sub-assembly body 41 is assembled to a slewing frame 16 comprising a main assembly body. Thus, the sub-assembly work for assembling the members or the like described above to the engine front cover 42 can be performed in a wide working area and further the assembly work to the slewing frame 16 is a bolt attaching work only for the engine front cover 42, so that these assembly works can be carried out easily.

6. 发明专利

JP2003213727A REVOLVING FRAME FOR CONSTRUCTION MACHINE 审中-公开
公开(公告)号：JP2003213727A
公开(公告)日：2003-07-30
申请号：JP2002010238
申请日：2002-01-18
申请人： HITACHI CONSTRUCTION MACHINERY
发明人： MOTOZU MAKOTO , YAMADA KAZUNORI , KUNO MAKOTO , ISHIKAWA NAOHIRO , YOSHIDA HAJIME
IPC分类号： E02F9/08
摘要： PROBLEM TO BE SOLVED: To increase the torsional rigidity or the like of a boom foot section by forming the rear-section side of the boom foot section in a closed sectional structure, and to reduce the weight of the whole revolving frame. SOLUTION: The revolving frame 21 is composed of a center frame 22, a left-side frame 35, a right-side frame 38 or the like. The center frame 22 is constituted of a bottom plate 23, left-right front vertical plates 24 and 24, left-right rear vertical plates 25 and 25, a parting plate 26, a horizontal plate 29, a closing plate 30 or the like. The horizontal plate 29 and the closing plate 30 are extended up to the place of the parting plate 26 in the longitudinal direction between the left-right front vertical plates 24 and 24, and the rear-end side of the closing plate 30 is joined with the upper-section front side of the parting plate 26 by an external welding. A section between the left-right front vertical plates 24 and 24 is formed in the closed sectional structure closing the section between the vertical plates from the upper side extensively over the rear-section side from the front-section side of the boom foot sections 24A by the closing plate 30. COPYRIGHT: (C)2003,JPO

7. 发明专利

JP2002061224A SLEWING TYPE CONSTRUCTION MACHINE 失效
公开(公告)号：JP2002061224A
公开(公告)日：2002-02-28
申请号：JP2000253622
申请日：2000-08-24
申请人： HITACHI CONSTRUCTION MACHINERY
发明人： HIBIYA TAKESHI , KOBORI SHINJI , SUGAYA MAKOTO , KUNO MAKOTO
IPC分类号： E02F9/00 , B60K15/03 , B60K15/063 , F02M37/00 , F02M37/22
摘要： PROBLEM TO BE SOLVED: To improve the assembling workability and productivity by installing a hydraulic fluid tank, a fuel tank, etc., separately from the main frame. SOLUTION: A hydraulic fluid tank 45 and a fuel tank 52 are sub-assembled on a tank bracket 52 thereby forming a tank sub-assembly body 33, and the tank bracket 34 of the tank sub-assembly body 33 is assembled to the slewing frame 14 forming the main assembly body in the configuration. Thus, the sub- assembling work for assembling the hydraulic fluid tank 45, the fuel tank 52 or the like to the tank bracket 34 can be performed in a wide working area, thereby improving the assembling workability. Moreover the assembling work to the slewing frame 14 can be limited only to the fixation of the tank bracket 34 with bolts.

8. 发明专利

JP2002061229A SLEWING TYPE CONSTRUCTION MACHINE 失效
公开(公告)号：JP2002061229A
公开(公告)日：2002-02-28
申请号：JP2000253623
申请日：2000-08-24
申请人： HITACHI CONSTRUCTION MACHINERY
发明人： KUNO MAKOTO , KOBORI SHINJI , SUGAYA MAKOTO , SATO SHINICHI
IPC分类号： E02F9/16 , G05G1/00
摘要： PROBLEM TO BE SOLVED: To improve assembling workability and productivity by assembling a group of control valves, an interference prevention valve, a lever stand and a connecting member separately from the main frame. SOLUTION: An operation-related subassembly body 41 is formed, by sub- assembling the group of control valves 49, interference prevention valve 50, lever stand 51, offset operation device 56, hydraulic hose group 57 or the like to the bracket 42, and the bracket 42 of the operation-related sub assembly body 41 is assembled to the slewing frame 20 forming the main assembly body. Thus, the sub-assembly work assembling the control valve group 49, interference prevention valve 50, lever stand 51, offset operation device 56, hydraulic hose group 57 or the like can be performed in a wide working place and, moreover, the assembling work to the slewing frame 20 can be performed only by the bolt stopping work for bracket 42, thereby making the assembling work easier.

9. 发明专利

JPH11336129A OPERATING PEDAL DEVICE FOR CONSTRUCTION MACHINE 失效
公开(公告)号：JPH11336129A
公开(公告)日：1999-12-07
申请号：JP16428498
申请日：1998-05-28
申请人： HITACHI CONSTRUCTION MACHINERY
发明人： KUNO MAKOTO , SATO SHINICHI , KIMURA SHOGO , IRINO TERUO
IPC分类号： E02F9/16
摘要： PROBLEM TO BE SOLVED: To prevent the interruption of a pedal cover when arranged at an unlock position and to improve the operability of other operating pedals. SOLUTION: At a lock position of a pedal locking device 28, an offset pedal 27 is covered with a pedal cover 33 and, at an unlock position, the pedal cover 33 is arranged on almost the same plane as that of a floor mat 20. In this way, at the lock position, the offset pedal 27 can be locked at a neutral point to prevent the malfunction of the offset pedal 27. On the other hand, at the unlock position, the pedal cover 33 is arranged on almost the same plane as that of the floor mat 20 to prevent a foot operating the offset pedal 27 from hitting the pedal cover 33.

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