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1. 发明专利

JP2001347944A GROUNDING DEVICE FOR TRACK TRAVELING VEHICLE 失效
公开(公告)号：JP2001347944A
公开(公告)日：2001-12-18
申请号：JP2000168694
申请日：2000-06-06
申请人： AICHI CORP KK
发明人： TAKAHASHI KUNIO , FUEKI YUJI , TSUKIOKA TARO
IPC分类号： B61D15/00 , B66F9/24
摘要： PROBLEM TO BE SOLVED: To provide a grounding device having a grounding brush with superior durability without being affected by an insulating substance such as grease. SOLUTION: This grounding device 40 comprises a steel ring holding frame 41, a conductive ring 43, the grounding brush 45, and a compression spring 47. The steel ring holding frame 41 is made of a metallic material and has an inverse U-shape. A steel ring 29 has a steel ring body 35 and a conductive ring 43 coaxial with axle 37 and annularly disposed in diametric outside of the axle 37 in its left side. The conductive ring 43 is made of gunmetal and has conductivity. The grounding brush 45 is formed by binding a plurality of conductive wire rods 45a made of alloy of carbon and the gunmetal into a brush shape. The hardness of the grounding brush 45 is lower than the hardness of the conductive ring 43. The grounding brush 45 is energized to the conductive ring 43 by the compression spring 47 oppositely disposed on the top part of the conductive ring 43 and fitted to the side plate 41b of the steel ring holding frame 41 at all times.

2. 发明专利

JP2000335407A TRACK WORK VEHICLE 失效
公开(公告)号：JP2000335407A
公开(公告)日：2000-12-05
申请号：JP15139699
申请日：1999-05-31
申请人： AICHI CORP KK
发明人： OHIRA AKIHIKO , TAGAMI YOSHIO , FUEKI YUJI , TSUKIOKA TARO , MORITA JUN
IPC分类号： B61D15/00
摘要： PROBLEM TO BE SOLVED: To surely and electrically connect to ground a trolley line and one side rail only in a work on electric car track. SOLUTION: This track work vehicle can move on track with a high level work device installed on a car body and has a slider 52 capable of abutting on a trolley line K. A grounded circuit connects the slider 52 with a iron wheel 36. The iron wheel 36 has left and right wheel members 36L, 36R which are made of a conductive material and roll on left and right rails RL, RR, and is electrically insulated between the both wheel members. The ground circuit has left and right grounded circuits electrically connecting the slider 52 with left and right wheel members separately and a ground change-over switch 65 for selecting an electrical connection by either of left or right ground circuit.

3. 发明专利

JPH08268698A SAFETY DEVICE FOR HIGH LIFT WORK VEHICLE 失效
公开(公告)号：JPH08268698A
公开(公告)日：1996-10-15
申请号：JP10023295
申请日：1995-03-31
申请人： AICHI CORP KK
发明人： TSUKIOKA TARO , OHIRA AKIHIKO
IPC分类号： B60P3/14 , B66F9/24 , B66F11/04
摘要： PURPOSE: To surely perform regulation of boom action such as making supporting of a car body unstable, by a simple constitution. CONSTITUTION: An actual work position is obtained from an actual derricking angle detected by a derricking motion sensor 22 and from an actual extending amount detected by an extension sensor 23 by using an actual work position arithmetic device 26, to obtain a limit work range based on an actual loading load of a work bench detected by a load sensor 20, also to compare this range with the actual work position, and when it leads to a boundary of the limit work range, operating a boom in a direction, that the actual work position exceeds the limit work range to move, is regulated by a boom controller 28. Further, whether the actual loading of the work bench is larger or not than a permissible maximum loading load is detected by a load comparator 24, to perform alarm action by an alarm controller 30 when the actual loading load comes to be the permissible maximum loading load or more.

4. 发明专利

JP2001063561A TRACK WORK VEHICLE 失效
公开(公告)号：JP2001063561A
公开(公告)日：2001-03-13
申请号：JP24395299
申请日：1999-08-30
申请人： AICHI CORP KK
发明人： TAGAMI YOSHIO , TSUKIOKA TARO
IPC分类号： B61D15/00 , B66F9/24 , B66F11/04
摘要： PROBLEM TO BE SOLVED: To prevent an electric shock of an operator by arranging an actuator actuation regulating means for regulating actuation of an actuator in the direction for bringing a work device near to the trolley wire side in the case of being not judged that a contact member exists in a position for abutting to and contacting with a trolley wire by a position judging means. SOLUTION: A truck land elevated spot work vehicle 1 has an electric shock preventing device 40 for preventing an electric shock of an operator on a working bench 25, and this electric shock preventive device 40 is composed of an energizing device for energizing a slider 45 to a trolley wire T, a controller for controlling actuation of a telescopic boom 17, a raising/lowering cylinder 21 and a telescopic cylinder 19 for lifting the working bench 25. An abutting/ contact judging circuit of the controller judges whether or not the slider 45 abuts to and contacts with the trolley wire T on the basis of a load value from a load detecting sensor 79, and sends the result to an actuation regulating circuit. When the operator tries to raise/lower the telescopic boom 17, actuation of an actuation control valve for extending the raising/lowering cylinder 21 is regulated on the basis of the judging result.

5. 发明专利

JP2003104699A BOOM WORKING VEHICLE 审中-公开
公开(公告)号：JP2003104699A
公开(公告)日：2003-04-09
申请号：JP2001299495
申请日：2001-09-28
申请人： AICHI CORP KK
发明人： TAKAHASHI NORIHISA , TSUKIOKA TARO
IPC分类号： B66F9/24 , B66F9/22 , B66F11/04
摘要： PROBLEM TO BE SOLVED: To provide a boom working vehicle enabling boom operation to return an operator onto the ground for evacuation or to house a boom while avoiding the abnormality of a boom operating device caused by sticking of a solenoid proportional valve for controlling the operation of a hydraulic actuator. SOLUTION: In this boom working vehicle, an auxiliary control valve is provided between a hydraulic actuator for actuating the boom, and the solenoid proportional valve for controlling the supply and discharge of pressure oil to and from the hydraulic actuator. In the abnormal state of the solenoid proportional valve being stuck by contamination or the like, the supply and discharge of the pressure oil to and from the hydraulic actuator is controlled by the auxiliary control valve in place of the solenoid proportional valve. The boom can thereby be operated even at the abnormal time caused by sticking, so that the operator can be evacuated on the ground, and the boom can be housed.

6. 发明专利

JP2002321895A LEVELING DEVICE OF HIGH LIFT WORK VEHICLE 失效
公开(公告)号：JP2002321895A
公开(公告)日：2002-11-08
申请号：JP2001129705
申请日：2001-04-26
申请人： AICHI CORP KK
发明人： TAGAMI YOSHIO , YOSHIDA SEIO , TSUKIOKA TARO , NAKAJIMA MASATO
IPC分类号： B66F9/06 , B66F9/22 , B66F11/04 , F15B11/16
摘要： PROBLEM TO BE SOLVED: To reduce a cost of a leveling device capable of preventing an inclination of a workbench. SOLUTION: This leveling device 30 has a first oil passage 39 for connecting rod side oil chambers 35a and 31a of an upper leveling cylinder 35 and a lower leveling cylinder 31, a second oil passage 41 for connecting bottom side oil chambers 35b and 31b of the upper leveling cylinder 35 and the lower leveling cylinder 31, an operation control valve 57 for controlling so as to supply and discharge oil delivered from a hydraulic pump P to a boom actuator 21, a first replenishing oil passage 47 for connecting a tank oil passage 59 and the first oil passage 39 for introducing discharge oil from the operation control valve 57 to a tank T, and a second replenishing oil passage 49 for connecting the tank oil passage 59 and the second oil passage 41. Check valves 51 and 53 are arranged in the first replenishing oil passage 47 and the second replenishing oil passage 49, and when the discharge oil flows in the tank oil passage 59, the discharge oil flowing in the tank passage 59, and becoming positive pressure is supplied to the first replenishing oil passage 47 and the second replenishing oil passage 49.

7. 发明专利

JP2002242905A DRIVING CIRCUIT FOR HYDRAULIC TOOL 失效
公开(公告)号：JP2002242905A
公开(公告)日：2002-08-28
申请号：JP2001041893
申请日：2001-02-19
申请人： AICHI CORP KK , IZUMI PROD CO
发明人： NAKAYAMA TAKASHI , TSUKIOKA TARO , KIDO HIROAKI
IPC分类号： B23Q5/06 , F15B11/028 , F16K1/14 , F16K15/04
摘要： PROBLEM TO BE SOLVED: To prevent malfunction of a hydraulic tool by leak of an operation oil without interrupting a normal operation of the hydraulic tool. SOLUTION: A leak valve 60 is provided in a connecting oil passage 111 connecting a hydraulic supply portion 1 having a hydraulic pump 3, with a clamp tool 90 driven by an oil pressure supplied from the hydraulic supply portion 1. The leak valve 60 operates to open an oil passage 113 connected to an oil tank 5 from a connecting oil passage 111, when a pressure in the connecting passage 111 is smaller than a minimum pressure required for the clamp tool 90 to be driven, and to close operation of the oil passage 113, when the pressure in the connecting oil passage 111 is not less than the minimum pressure required for the clamp tool 90 to be driven.

8. 发明专利

JP2003104178A VEHICULAR BODY LIFTING AND HOLDING DEVICE 审中-公开
公开(公告)号：JP2003104178A
公开(公告)日：2003-04-09
申请号：JP2001299496
申请日：2001-09-28
申请人： AICHI CORP KK
发明人： TSUKIOKA TARO , OIKAWA TOMOHARU
IPC分类号： B60S9/12 , B66F9/075 , B66F11/04 , F15B11/16 , G05G5/04
摘要： PROBLEM TO BE SOLVED: To prevent a overhanging cylinder from expanding even when a selector valve is erroneously operated. SOLUTION: This vehicular body lifting and holding device 20 is composed of overhanging beams capable of overhanging in a vehicular width direction by overhanging cylinders 24, plural outrigger devices 21 having a jack equipped to a tip end portion of the overhanging beam and capable of virtually expanding and contracting by a jack cylinder 27, plural selector valves 31 to 34 provided corresponding to the outrigger devices 21 and selectively supplying oil into the overhanging cylinders 27 and the jack cylinders 24, a coming/going switching valve 39 controlling supplying/discharging the oil to/from the selector valve, double pilot check valves 67 arranged in second oil passages 48 connecting the selector valves and bottom chambers 27a of the jack cylinders 27 and in a third oil passage 49 connecting a rod chamber 27b of the jack cylinder and the coming/going switching valve 39, and a pilot check valve 61 arranged in a sixth oil passage 52 and a seventh oil passage 53 communicating to the second oil passage 48 and the third oil passage 49.

9. 发明专利

JP2001348196A WORKBENCH SUPPORTING DEVICE FOR MAINTENANCE VEHICLE 失效
公开(公告)号：JP2001348196A
公开(公告)日：2001-12-18
申请号：JP2000171584
申请日：2000-06-08
申请人： AICHI CORP KK
发明人： KUWABARA YOSHINORI , YAKUWA MASAKAZU , TSUKIOKA TARO , MASUDA NORIHIDE , ITO TERUMICHI
IPC分类号： B66F9/06 , B66F11/04
摘要： PROBLEM TO BE SOLVED: To provide a workbench supporting device in which many common parts can be effectively used, with little parts to be changed even when model and the like for a vehicle for high lift work are changed. SOLUTION: The workbench supporting device 30 comprises a leveling mechanism 31, an oscillating mechanism 33 and a workbench support 35. The leveling mechanism 31 includes a leveling cylinder 37 pivotally combined vertically movable inside the end of a telescoping boom 13 and a leveling bracket 39 pivotally combined vertically movable at the end of the telescoping boom 13. The end of the leveling cylinder 37 and the oscillating mechanism 33 are detachably mounted to the leveling bracket 39. When the specification and the like of the vehicle are changed, only the leveling bracket is newly fabricated, and the leveling cylinder 37, the oscillating mechanism 33, the workbench support 35 and the workbench 19 are used as common parts.

10. 发明专利

JP2000335408A TRACK WORKING CAR 失效
公开(公告)号：JP2000335408A
公开(公告)日：2000-12-05
申请号：JP15139899
申请日：1999-05-31
申请人： AICHI CORP KK
发明人： TAGAMI YOSHIO , TSUKIOKA TARO
IPC分类号： B61D15/00
摘要： PROBLEM TO BE SOLVED: To prevent a track working car for work on a track from running at a high speed, with its contact member touching a trolley wire. SOLUTION: A track working car, which runs on tramcar track rails RL, RR, is constituted by arranging a working device on its car body of a running vehicle, arranging elevatably a slide board 52, which can abut on or touch a trolley wire, either on the car body or on the working device, and arranging an earthing circuit connecting the slide board 52 and an iron wheel 36. This working car runs on the rail by driving for rotation the iron wheel 36 by using a running/driving motor. When this slide board 52 is elevated, either the drive of the running drive motor is restricted or made at a low speed, thereby either restricting the running of the car or allowing a low-speed traveling only.

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