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1. 发明专利

JPH07291025A AUTOMATIC LIGHT CONTROL DEVICE 失效
公开(公告)号：JPH07291025A
公开(公告)日：1995-11-07
申请号：JP8432794
申请日：1994-04-22
申请人： HITACHI LTD , HITACHI CAR ENGINEERING KK
发明人： NINOMIYA TAKAYUKI , UJIIE TAKUJI
IPC分类号： G04G15/00 , B60Q1/02
摘要： PURPOSE:To eliminate an obstacle to the field of view of a car on the opposite lane and simultaneously prolong the service life of a light by performing automatic illumination suitable for the running condition of a vehicle. CONSTITUTION:A lighting or light-out determining circuit 3 with a hysteresis, taking a photo sensor 2 as input, and a car speed sensor take-in circuit 5, taking a car speed sensor 4 as input are connected to a delay time determining circuit 6, and a relay 7 is put between a battery power supply 1 and a light 8. Thus, the delay time is changed depending on the car speed to eliminate frequent ON-OFF of the light, so that an obstacle to the field of view of a car on the opposite lane can be eliminated and simultaneously lengthen the life of the light so as to accomplish stable automatic illumination.

2. 发明专利

JPH08198113A SMALL-SIZED MOTOR-DRIVEN DOLLY 失效
公开(公告)号：JPH08198113A
公开(公告)日：1996-08-06
申请号：JP1035895
申请日：1995-01-26
申请人： HITACHI LTD , HITACHI CAR ENGINEERING KK
发明人： UJIIE TAKUJI , ITO TOSHIKATSU , NINOMIYA TAKAYUKI , ITO TOSHIO
IPC分类号： B62B3/00 , H01H3/16 , H02J7/00
摘要： PURPOSE: To suppress consumption of a battery and lessen the power consumed by actuating a load sensing switch to supply the electric power to a motor so that the driving is performed only when an object with a weight exceeding the preset value is loaded. CONSTITUTION: When an object with a weight exceeding a preset value is placed on a mat switch 6 mounted on a loading table 2, a speed changeover switch 1 is actuated to adjust the speed, and thereby electric power is supplied to a motor 10 from a battery 4 via a controller 5, and a propelling force is generated. This is transmitted to a reduction gear 9 for giving a torque required to drive a dolly, which is run electrically with driving wheels 8. If no object is loaded, or the object concerned has a smaller weight than the preset value, no power is supplied to the motor 10 from the battery 4 despite turning of the speed changeover switch 1, and the dolly can not be run electrically, so that it must be run only by hand push.

3. 发明专利

JPH08111914A MOTOR OPERATED TRUCK 失效
公开(公告)号：JPH08111914A
公开(公告)日：1996-04-30
申请号：JP24590294
申请日：1994-10-12
申请人： HITACHI LTD , HITACHI CAR ENGINEERING KK
发明人： UJIIE TAKUJI , NINOMIYA TAKAYUKI , ITO TOSHIO
IPC分类号： G01G19/12 , B60L15/00 , B60L15/28
摘要： PURPOSE: To hold a set speed constantly by sensing a loading weight by a piezoelectric sensor installed at a pallet, and varying the duty in the case of PWM controlling by the voltage to control a motor. CONSTITUTION: A mat type piezoelectric sensor 9 for sensing the weight of a load is provided at the lower surface of a pellet 4. Normally, a vehicle is traveled at a speed set arbitrarily by a speed set switch. However, if the loaded weigh is heavy, the traveling speed is decelerated from the set speed as compared with the case that the load is light, the load weight is sensed by the sensor 9, the sensed voltage is output to a main controller, and a control signal for correcting the duty of the output voltage from the sensor 9 by the main controller when the output voltage is '0' is output to a PWM controller. An FET is turned ON, OFF by a PWM signal output from the PWM controller to chopper control the motor, thereby holding the set speed constant despite the loading weight. As a result, the speed can be held constant despite the loaded weight.

4. 发明专利

JPH07291096A BURGLARPROOF DEVICE OF VEHICLE 失效
公开(公告)号：JPH07291096A
公开(公告)日：1995-11-07
申请号：JP9104794
申请日：1994-04-28
申请人： HITACHI LTD , HITACHI CAR ENGINEERING KK
发明人： UJIIE TAKUJI , NINOMIYA TAKAYUKI
IPC分类号： B60R25/04 , B60R25/045
摘要： PURPOSE:To prevent burglary of a vehicle by direct connection of a wiring of a burglary preventive switch. CONSTITUTION:A burglary preventive device is constituted as shown in a drawing 1 by putting a burglary preventive switch between an S terminal 2a of a magnet switch 2 and an electromagnetic coil 2d. Consequently, it is impossible to directly connect a wiring of the burglary preventive switch 3, and to have an effect to prevent burglary of a vehicle.

5. 发明专利

JPH08258717A SMALL ELECTRIC VEHICLE 失效
公开(公告)号：JPH08258717A
公开(公告)日：1996-10-08
申请号：JP6370895
申请日：1995-03-23
申请人： HITACHI LTD , HITACHI CAR ENGINEERING KK
发明人： ITO TOSHIKATSU , NINOMIYA TAKAYUKI , ISHIZAKI KAZUHISA , UJIIE TAKUJI
IPC分类号： B62B3/00
摘要： PURPOSE: To provide a small electric vehicle excellent in operativity and inexpensive. CONSTITUTION: A reduction assistor 5 is connected to one of front wheels 4, 4a fixed in direction in front of a load-carrying platform 1 and the front wheels 4, 4a are coaxially supported on a small electric vehicle 100. A battery 13, a controller 12A, an operating knob 11a and other electrical equipment are stored in a battery case 11, and the battery case 11 is installed in such a way to hook on a handle 2. As it is possible to adjust speed while holding a handle, operativity of speed adjustment is improved, it becomes possible for an old and a girl to operate and safety is improved. As a driving device is connected only to one of the front wheels 4, 4a, being fixed in direction, it is possible to simplify structure without spoiling direction changing performance.

6. 发明专利

JP2001069716A DEVICE FOR CONTROLLING MOVEMENT OF DYNAMO-ELECTRIC MACHINE ROTOR IN AXIAL DIRECTION 失效
公开(公告)号：JP2001069716A
公开(公告)日：2001-03-16
申请号：JP24475899
申请日：1999-08-31
申请人： HITACHI LTD , HITACHI CAR ENG CO LTD
发明人： SAITO SHIGEKI , UJIIE TAKUJI
IPC分类号： H02K5/173 , F16C35/077
摘要： PROBLEM TO BE SOLVED: To improve the assembly workability by employing a structure that enables the movement of a rotor in its axial direction to be easily controlled from outside by using screws. SOLUTION: In a dynamo-electric machine in which housings 2, 3 are provided at both sides of a stator core and a rotor 6 is rotatably supported via ball bearings 7, 8, a headless screw 11 is provided in the outer race of the ball bearing 7 so that the movement of the rotor 6 in the axial direction can be controlled. Here, the headless screw 11 is tightened lightly and unfastened moderately to prevent the excessive thrust load from being applied. After setting, the rotation is locked by screw lock and the like. As a result, the movement of the rotor 6 in the axial direction can easily be controlled after the dynamo-electric machine is assembled.

7. 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.

8. 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.

9. 发明专利

JPH1042616A MOTOR-DRIVEN CARRYING CART FOR FARM FIELD 失效
公开(公告)号：JPH1042616A
公开(公告)日：1998-02-17
申请号：JP20219996
申请日：1996-07-31
申请人： HITACHI LTD , HITACHI CAR ENG CO LTD , NISHIZAWA KK
发明人： ISHIZAKI KAZUHISA , TAKAO HIROMI , NINOMIYA TAKAYUKI , UJIIE TAKUJI , NISHIZAWA AKIRA
IPC分类号： A01B51/02 , B62B3/00
摘要： PROBLEM TO BE SOLVED: To provide a motor-driven carrying cart for the use in a farm field, having decreased running resistance and enabling efficient transportation by optimizing the width between wheels. SOLUTION: This motor-driven carrying cart is provided with a carrying bed for holding harvested crops, wheels for supporting the carrying bed 1 in movable state, a motor generating rotary power and a power-transmission mechanism transmitting the power from the motor to the rear wheels 3b. The wheels are composed of rear wheels 3b receiving the rotary force from the motor to drive the carrying bed 1 and idling front wheels 3a. These wheels 3a, 3b are rotatably supported by U-shaped supporting leg parts 5. The width (l) of each wheel 3a, 3b is set to satisfy the formula 0.02×L

10. 发明专利

JP2005307899A Fuel pump 审中-公开
标题翻译：燃油泵
公开(公告)号：JP2005307899A
公开(公告)日：2005-11-04
申请号：JP2004127788
申请日：2004-04-23
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： UJIIE TAKUJI , KUMAGAI KATSUTO , WATANABE SATORU
IPC分类号： F02M37/10 , F02M37/08 , F04C2/10
摘要： PROBLEM TO BE SOLVED: To restrict temperature rise at a stator part, and improve motor efficiency in a fuel pump.
SOLUTION: This fuel pump 1 comprises a rotor part 11, the stator part 12 to apply electromagnetic force to the rotor part 11, a partition wall member 3 to separate the stator part 12 from the rotor part 11, and an outer wall member 4 forming an outer wall of the stator part 12. It is also provided with a motor part 10 comprising a stator containing chamber 5 formed between the partition wall member 3 and the outer wall member 4 to contain the stator part, and a pump part 20 driven by rotation of the rotor part 11 to send fuel taken from a fuel taking passage 28 to be delivered through a fuel delivery passage 29. Resin 19 is charged into the stator containing chamber 5.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：限制定子部件的温升，提高燃油泵的电动机效率。解决方案：该燃料泵1包括转子部分11，向转子部分11施加电磁力的定子部分12，将定子部分12与转子部分11分离的分隔壁部件3和外壁构件4形成定子部分12的外壁。其还设置有电动机部分10，其包括形成在分隔壁构件3和外壁构件4之间的定子容纳室5，以容纳定子部分，并且泵部分 20通过转子部件11的旋转而被驱动，以从燃料取出通道28送出的燃料通过燃料输送通道29被输送。树脂19装入定子容纳室5.（C） JPO＆NCIPI

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