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31. 发明专利

JPH10316086A MOTOR-DRIVEN TOILET FOR SHIP 失效
公开(公告)号：JPH10316086A
公开(公告)日：1998-12-02
申请号：JP12671897
申请日：1997-05-16
申请人： HITACHI LTD , HITACHI CAR ENG CO LTD
发明人： ITO TOSHIKATSU , NINOMIYA TAKAYUKI , ISHIZAKI KAZUHISA
IPC分类号： E03D5/00 , B63B29/14
摘要： PROBLEM TO BE SOLVED: To prevent a motor from being burnt due to jaming of soil by providing a motor device for driving a pump motor in a water washing mode of storing the on-state of an operation switch of the motor and operating for a fixed time from that point to be stopped, and in a remaining water discharge mode of repeatedly operating several times shorter than the water washing mode. SOLUTION: In a microcomputer of a control circuit, when an operation switch 17 is turned on, a water washing mode is read, a pump motor 9 is driven during the time t1 , and then it transits to a remaining water discharge mode. In the remaining water discharge mode, the pump motor 9 is driven during the time t2 in the lapse of 2 seconds after the water washing mode, and further driven during the time t2 in the lapse of t3 after that. Repetition of this discharge mode is arbitrarily set according to the use environment. Thus, soil can be completely discharged to the outside of a ship regardless of the immature of operation, so that burning of the pump motor can be prevented, and as remaining water in a toilet stool is not produced, even if the ship rolls, water is kept from being spilt in the toilet room.

32. 发明专利

JPH09209979A AUTO-STOP TYPE MOTOR-DRIVEN PUMP 失效
公开(公告)号：JPH09209979A
公开(公告)日：1997-08-12
申请号：JP1360896
申请日：1996-01-30
申请人： HITACHI LTD , HITACHI CAR ENG CO LTD
发明人： NINOMIYA TAKAYUKI , ITO TOSHIKATSU
IPC分类号： F04D15/00
摘要： PROBLEM TO BE SOLVED: To correctly and automatically perform supply of oil by determining supply oil quantity by a controller based on a liquid level height signal from a liquid level sensor in a fuel tank mounted on a vehicle, changing oil supply speed, and automatically stopping a pump when supply of oil is completed. SOLUTION: A liquid level sensor installed on a fuel tank inputs a liquid level in the fuel tank to which oil is supplied through a coupler 12 to a controller. The controller amplifies the inputted signal from the liquid level sensor by an amplifier circuit 16, and correctly determines supply oil quantity. Based on this amplifier signal, a motor rotation speed of a motor-driven pump 6 is decreased when supply oil is being completed, at about 90%, for example. Supply of oil is thus controlled by a supply oil level detection circuit 17 to slowly supply oil for preventing the signal from the liquid level sensor from being changed by a liquid level amplitude. In addition, delay is provided to the amplified signal by a delay circuit 18, and a self-holding relay 22 is actuated, so supply of oil is stably performed. The pump 6 is thus automatically stopped when supply of oil is completed.

33. 发明专利

JPH09109894A ELECTRIC CARRIER 失效
公开(公告)号：JPH09109894A
公开(公告)日：1997-04-28
申请号：JP26691695
申请日：1995-10-16
申请人： HITACHI LTD , HITACHI CAR ENG CO LTD
发明人： ITO TOSHIKATSU , NINOMIYA TAKAYUKI , ISHIZAKI KAZUHISA , UJIIE TAKUJI
IPC分类号： B60K1/00 , B60K7/00 , B60L15/20 , B62B3/00
摘要： PROBLEM TO BE SOLVED: To provide an electric carrier in which the operability and the power consumption ratio are improved In the electric carrier using two drive motors. SOLUTION: Two directionally fixed front wheels 50, 52 which are fitted to a front side in the advancing direction of a platform, and two directionally free rear wheels 54, 56 which are fitted to a rear side in the advancing direction of the platform are fitted below a platform 10 on which an article to be carried is loaded. A DC motor 62N is fitted to one of the front wheel 50 of two front wheels through a gear box 64N, and a DC motor 62H is fitted to the other front wheel 52 through a one-way clutch and a gear box 64H. A battery case 30 storing a battery 34 and a controller 200 is suspended from a handle 20. An upper face of the battery case 30 is commonly used as a control panel, and a normal/hard switch to switch and control the DC motors 62N, 62H is fitted.

34. 发明专利

JPH0958381A ELECTRIC TRANSPORTATION VEHICLE WITH COLLISION STOP FUNCTION 失效
公开(公告)号：JPH0958381A
公开(公告)日：1997-03-04
申请号：JP22141195
申请日：1995-08-30
申请人： HITACHI LTD , HITACHI CAR ENG CO LTD
发明人： ISHIZAKI KAZUHISA , ITO TOSHIKATSU , NINOMIYA TAKAYUKI , UJIIE TAKUJI
IPC分类号： B60R19/48
摘要： PROBLEM TO BE SOLVED: To simplify structure of an electric transportation vehicle with collision stop function and make it possible to stop the vehicle even when a side section of the vehicle comes into contact with an obstacle by providing a pressure-displacement conversion section which receives changes of pressure from a pressure detection member when the vehicle comes into contact with the obstacle and converts it into displacement and stopping the electric transportation vehicle by an electric change-over member which is operated based on the displacement. SOLUTION: When a front end section of a load carrying platform of an electric transportation vehicle with collision stop function collides against or comes into contact with an obstacle, a beltlike moving body switch 7 is operated in such a manner that air or liquid in a contact section 14 flows into a contact cover 16 in which a contact switch 13 is stored through a tube 15. Since air or liquid presses a diaphragm 17 to which the contact switch 13 is connected, a contact of the contact switch 13 comes into contact to send a shut-off signal to a controller 8. When the controller 8 detects this shut-off signal, it sends a signal to a shut-off relay 10 between a motor 2 and a battery 9 which are built in, the shut-off relay 10 opens a circuit between the motor 2 and the battery 9 to shut off the supply of power, and the motor 2 stops.

35. 发明专利

JPH08241124A CONTROLLER FOR MOTOR-DRIVEN CARRIER 失效
公开(公告)号：JPH08241124A
公开(公告)日：1996-09-17
申请号：JP4380695
申请日：1995-03-03
申请人： HITACHI LTD , HITACHI CAR ENGINEERING KK
发明人： NINOMIYA TAKAYUKI , ITO TOSHIKATSU
IPC分类号： B60L15/20 , G05D1/02
摘要： PURPOSE: To prevent a collision against an obstacle by providing an obstacle sensor, and controlling the vehicle down to a speed where the vehicle can stop by load weight in consideration of inertia force when the distance between the obstacle and vehicle decreases to a certain distance and stopping the motor a certain-time travel later. CONSTITUTION: The obstacle sensor 9 detects the distance to the obstacle in the travel direction of the carrier and a piezoelectric sensor 10 detects the load weight, and they are always outputted as voltage signals to a main control circuit 11. The main control circuit 11 controls the vehicle speed according to values obtained by mapping vehicle speeds by the load weight so that the carrier can stop in consideration of the inertial force when the distance between the vehicle and obstacle reaches the certain distance, and stops the motor 8 the certain-distance travel later. A duty generating circuit 12 outputs a duty signal based on the output voltage of the main control circuit 11 and a transistor 13 turns on and off repeatedly in association with the duty signal outputted by the duty generating circuit 12 to bring the motor 8 under chopper control, thereby varying the vehicle speed.

36. 发明专利

JPH08207775A MOTOR-DRIVEN DOLLY 失效
公开(公告)号：JPH08207775A
公开(公告)日：1996-08-13
申请号：JP2011195
申请日：1995-02-08
申请人： HITACHI LTD , HITACHI CAR ENGINEERING KK
发明人： ISHIZAKI KAZUHISA , ITO TOSHIKATSU , NINOMIYA TAKAYUKI , ITO TOSHIO
IPC分类号： B62B3/00 , B66F7/08 , B66F9/24
摘要： PURPOSE: To obtain power for travel and other action by one reduction assistor by providing the reduction assistor, connected to the output side of a motor, with two output shafts that are a truck propulsion shaft and a shaft to be other power source, and switching the output shafts by the normal and reverse rotation of the motor. CONSTITUTION: In the case of switching a change-over switch 17 to the travel side, relays 25 are formed into a circuit connected by continuous lines, and a motor 3 is rotated clockwise. When the torque is transmitted to a reduction assistor, a roller 23b in a one-way clutch housing 24b. The power of the motor 3 is thereby transmitted to a gear 20a through the gear 20b and further transmitted to a travel driving shaft 5 to make a truck travel. When the change-over switch 17 is switched to the lift side, the motor 3 is reversely rotated, and a hydraulic pump is driven by the rotation of the pump driving shaft 6. Generated oil pressure is transmitted to a pallet lifting cylinder.

37. 发明专利

JPH08202296A METHOD FOR LIGHTING CONTROL PANEL FOR CAR 失效
公开(公告)号：JPH08202296A
公开(公告)日：1996-08-09
申请号：JP1349795
申请日：1995-01-31
申请人： HITACHI LTD , HITACHI CAR ENGINEERING KK
发明人： ITO TOSHIKATSU , NINOMIYA TAKAYUKI
IPC分类号： B60Q3/04 , F21V8/00 , G09F13/00 , G09F13/20 , G09F13/22
摘要： PURPOSE: To miniaturize and lighten a lighting device and to enhance quality of lighting by separating a display part from a light source and eliminating influence of heat radiation from the light source. CONSTITUTION: A light transmission body separating the display part from the light source 1 is made an optical fiber 2, and a diffusion lens 6 is attached to the tip of the optical fiber 2 of a lighting panel 3 side for improving light transmission efficiency. Further, when a main light source 9 is snapped, a backup light source is lighted automatically, and maintenance is facilitated by warning with an indicator.

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