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1. 发明专利

JPH11264462A LOAD CONTROL MECHANISM FOR WORKING VEHICLE 失效
公开(公告)号：JPH11264462A
公开(公告)日：1999-09-28
申请号：JP6844998
申请日：1998-03-18
申请人： YANMAR DIESEL ENGINE CO
发明人： KAMIYAMA HIDEKI , KITAGAWA HIROYUKI
IPC分类号： B60W10/04 , B60W10/08 , B60W10/10 , B60W10/103 , F02D29/00 , F02D41/04 , F16H9/00 , F16H61/16 , F16H61/40 , F16H61/435 , F16H61/46 , F16H61/47 , F16H61/478 , F16H63/50 , B60K41/16
摘要： PROBLEM TO BE SOLVED: To uniformly hold the working load by constituting a load control mechanism in such a state as not controlling the output, when an engine rotation speed detecting means judges an engine rotation speed to be in a range with no possibility, of stall in judging 80 overload state. SOLUTION: When a movable swash plate of a hydraulic pump is moved to a set position by a lever operation of a continuously variable transmission 3 and a lever angle sensor S3 confirms the setting of the advancing area of the movable swash plate position, a controller C reads a detection load factor via a load factor monitor M1 and compares it with the set load factor set by a load factor setting device 23. When the former is larger than the latter, the set rotation speed is read by an axle sensor S4 and the detected engine rotation speed by an engine rotation speed monitor M2. The controller C stores the set engine rotation speed reduction as a standard as the possibility of the stall, if the detection engine rotation speed is lower than the overload standard rotation speed, the movable swash plate is moved by a swash plate control motor 8 because of the possibility of the stall, and it is higher, there is no possibility of the stall so that it is left as it is.

2. 发明专利

JPH08187010A TILLING DEVICE 失效
公开(公告)号：JPH08187010A
公开(公告)日：1996-07-23
申请号：JP1973195
申请日：1995-01-11
申请人： YANMAR AGRICULT EQUIP , ISHIKAWAJIMA SHIBAURA MACH , YANMAR DIESEL ENGINE CO
发明人： SUDO TAKAAKI , NAKAGAWA OSAMU , MEGA TAKUJI , KITABAYASHI AKIHIKO , MAEZAWA AKIHIKO , FUJISAWA SHINKICHI , MIYAMOTO MASAHIKO , KOSHI KIMIHIRO , KAMIYAMA HIDEKI
IPC分类号： A01B69/00 , A01B63/10
摘要： PURPOSE: To enable the automatic slide of a rotary working machine to the opposite side against the previous process by lifting the rotary working machine to the non-tillage position when arrived at a butt of a field and turning the direction of the tractor there. CONSTITUTION: This tilling device has a tractor provided with a tillage rotary working machine in a freely liftable and laterally slidable manner. The tilling device is provided with a controller 77 capable of automatically sliding in an interlocked state with the lifting of the rotary working machine to the non- tillage position. By the automatic sliding, the rotary working machine changes its position to the opposite side against the previous process by about the same amount as that of the sliding change toward the tilled area in the previous process.

3. 发明专利

JPH0876772A ACTIVE MUFFLER 失效
公开(公告)号：JPH0876772A
公开(公告)日：1996-03-22
申请号：JP21487594
申请日：1994-09-08
申请人： YANMAR DIESEL ENGINE CO
发明人： KAMIYAMA HIDEKI
IPC分类号： H03H17/00 , B60R11/02 , F01N1/00 , G10K11/178 , H03H17/02 , H03H21/00
摘要： PURPOSE: To improve the volume, tone quality, etc., of a noise canceling sound generated from a speaker for improving a muffler effect in an active muffler constituted so as to generate a sound of a phase opposite to a noise to muffle it from the speaker. CONSTITUTION: A phase setting device PD and a volume setting device VD are provided in a control part ANC of an active muffler, and when the inside of a cabin of a tractor with a cabin is muffled, the fluctuation of the number of revolution of engine and an engine load rate are detected, and an opposite phase sound is formed, and further, in the case of a muffler of band-pass filter passing type, the central frequency of band-pass filter BPF is made settable and in the case of a muffler of the type forming the opposite phase sound by an oscillator, the frequency of the oscillator is made settable.

4. 发明专利

JPH0633418A MECHANISM FOR CONCRETE CUTTER 失效
公开(公告)号：JPH0633418A
公开(公告)日：1994-02-08
申请号：JP18837092
申请日：1992-07-15
申请人： YANMAR DIESEL ENGINE CO
发明人： KAMIYAMA HIDEKI
IPC分类号： B28D1/24 , E01C23/09 , F02D29/02
摘要： PURPOSE:To improve workability by a method wherein an engine is automatically controlled through detection of a load and the number of revolutions during cutting and the cutter is automatically traveled along a reference line. CONSTITUTION:When the number of revolutions of a cutter 1 is decreased and the torque is increased at a place where concrete is thick, the change is detected by a detecting means arranged on the cutter 1 or a drive system therefor and the car speed is reduced to cause the number of revolutions and the torque to coincide with respective preset values. The number of revolutions of an engine E and a load are then detected, the number of revolutions is caused to coincide with a preset value through control of opening and closing of the throttle of the engine E by means of an electronic governor, and the cutter 1 is rotated at the constantly specified number of revolutions. A reference line drawn on a road is detected by a cut reference line detecting sensor 11 and automatic travel is performed along the reference line through control of a steering wheel 12. When the reference line has a turning radius smaller than a value at which the cutter 1 is bendable, travel is stopped or travel is effected along a circle of a minimum turning radium. This constitution prevents the damage of the cutter, enables improvement of working efficiency, and performs accurate execution of a work even by an unskilled operator.

5. 发明专利

JPH0613994A CORDLESS SIGNAL TRANSMITTER 失效
公开(公告)号：JPH0613994A
公开(公告)日：1994-01-21
申请号：JP17056592
申请日：1992-06-29
申请人： YANMAR DIESEL ENGINE CO
发明人： KAMIYAMA HIDEKI
IPC分类号： G08C17/00 , H04B15/02 , H04Q9/00
摘要： PURPOSE:To prevent invasion of noise by arranging signal transmitters on an agriculture vehicle and a signal on a work machine side close to each other and applying a noise protector over an outer circumference of the both except a transmission reception face. CONSTITUTION:A rotary cultivator R being a work machine is attached on a rear part of a tractor T being an agriculture vehicle, and a main equipment side signal transmitter 2 and a work machine side signal transmitter 1 are arranged at the mounting part of the both art a position of a quick mount connecting the tractor T and the cultivator R as close as possible as if they were almost in contact with each other. Analog sensors such as a cultivating depth sensor and a cultivating cover turning sensor 6 are mounted on the rotary cultivator R, signal from the sensors 6, 7 are sent to a controller of the tractor T via the work machine side signal transmitter 1 and the main equipment side transmitter 2, and a command signal from the controller is sent to the cultivator R. A noise protector is applied on the outer circumference except the transmission reception face of the signal transmitted 1, 2 to prevent invasion of noise.

6. 发明专利

JPH0549304A DEVICE FOR MAINTAINING HORIZONTAL OR SET ANGLE OF TRACTOR WORKING MACHINE 失效
公开(公告)号：JPH0549304A
公开(公告)日：1993-03-02
申请号：JP21759691
申请日：1991-08-28
申请人： YANMAR AGRICULT EQUIP , YANMAR DIESEL ENGINE CO , SEIREI IND
发明人： FUJIMOTO KENICHI , KAMIYAMA HIDEKI , TOGAMI SHUICHI
IPC分类号： B60G17/00 , A01B63/10 , B60G17/015 , B60G17/0165 , B60G17/019 , B62D55/116
摘要： PURPOSE:To more accurately carry out horizontal control by installing a sensor for detecting the tilt on the side of a working machine through a sensor carrier on the side of a mobile machine body and controlling the sensor carrier through a differential operating unit by relative movement of a lifting cylinder. CONSTITUTION:A sensor for detecting tilt on the working machine side is installed through a sensor carrier 12 on the side of a mobile car body. The sensor carrier is controlled by transmitting relative movement of a lifting cylinder through a wire to a differential operating unit 15 having an interlocking member 15-2.

7. 发明专利

JPH04356289A CONTROLLING DEVICE FOR CENTER OF GRAVITY OF AGRICULTURAL GROUND WORK VEHICLE 失效
公开(公告)号：JPH04356289A
公开(公告)日：1992-12-09
申请号：JP13000191
申请日：1991-05-31
申请人： YANMAR DIESEL ENGINE CO
发明人： KAMIYAMA HIDEKI , YAMAGUCHI TATSUO , YAMAMOTO KAZUHISA , YUKINO HIROYASU , AKASHIMA SUSUMU , MIYAZAKI RYUICHI , OCHI TOMOFUMI
IPC分类号： A01B69/00 , B62D49/08 , G05D1/08
摘要： PURPOSE:To enable safe and ensured agricultural work as to various kinds of ground work using an agricultural ground work vehicle equipped with a device for controlling a ground working machine by making the center of gravity of the vehicle freely variable with the kind of the ground work. CONSTITUTION:A fuel tank 2, a battery 3 and front wheels 12, etc., are shifted according to the kind and condition of ground work so that the center of gravity of an agricultural ground work vehicle is shifted. In a rotary work mode, if the vehicle is judged to be in its non-working state according to the hydraulic pressure value of a lift 10, the center of gravity is shifted forward and when a water/dry rice field changeover switch 9 is turned to its water field side the center of gravity is further shifted forward. When a front-wheel speed increasing device is turned on in order to make a sharp turn, the center of gravity is located in the same position or shifted forward and when tracting work is performed the center of gravity is set near or behind its initial position and as loads are increased automatic four-wheel drive is turned on and the center of gravity is shifted forward. When power atomizing work is performed the center of gravity is set in a forward position and then shifted backward as agricultural chemical decreases.

8. 发明专利

JPH04356104A INCLINATION CONTROLLER OF WORKING MACHINE 失效
公开(公告)号：JPH04356104A
公开(公告)日：1992-12-09
申请号：JP13000291
申请日：1991-05-31
申请人： YANMAR DIESEL ENGINE CO
发明人： KAMIYAMA HIDEKI
IPC分类号： A01B63/10
摘要： PURPOSE:To solve the retardation and instability of control convergence caused by the swinging-back of a pendulum when a conventional pendulum type inclination detector is used, on the control of the inclination of a working machine attached to a tractor. CONSTITUTION:A pendulum type inclination detector 1 and further an inclination rate detector 2 are employed so that main controls are performed by the inclination rate detector 2 and also so that inclinations finally reaching convergence are controlled by the inclination detector 1.

9. 发明专利

JPH04278843A CONTROLLER FOR WORKING VEHICLE 失效
公开(公告)号：JPH04278843A
公开(公告)日：1992-10-05
申请号：JP1300291
申请日：1991-01-09
申请人： YANMAR DIESEL ENGINE CO
发明人： KAMIYAMA HIDEKI , HASEBE TAKESHI
IPC分类号： B60W10/04 , B60W10/00 , B60W10/06 , B60W10/10 , B60W10/103
摘要： PURPOSE:To control the car speed or torque to each constant value by operating an engine revolution speed control part E or transmission control part T according to the variation of the conditions of soil, crops, etc., in the controller for a working vehicle such as tractor. CONSTITUTION:An engine revolution speed control part E is constituted by installing an electronic governor mechanism in an engine, and a transmission control part T having an HST controller H in a speed change device is constituted, and control is performed so that each of car speed and torque is made constant for the variation of load according to the working state, and also in case of car speed control or torque control, control is performed from the transmission control part T, and then control for the engine revolution speed control part E is started.

10. 发明专利

JPH01322029A AUTOMATIC OFFSET MECHANISM OF SMALL TURN TYPE BACK HOE 失效
公开(公告)号：JPH01322029A
公开(公告)日：1989-12-27
申请号：JP15556588
申请日：1988-06-23
申请人： YANMAR DIESEL ENGINE CO , YANMAR AGRICULT EQUIP , SEIREI IND
发明人： NAKANO YOSHIKI , INOUE YUJI , KAMIYAMA HIDEKI , OHASHI TETSUHIRO
IPC分类号： E02F3/32 , E02F3/30 , E02F3/43
摘要： PURPOSE:To facilitate the accommodation operation and permit the perfectly automatic operation by previously teaching the boom angle, arm angle, offset starting angle, and the offset completion angle into a controller. CONSTITUTION:An arm 4 is supported through an offset arm 22 onto the top edge of a boom 6 pivotally supported in vertically turnable ways onto a turning base 12, and a bucket 1 is installed in turnable ways at the top edge of the arm 4. In turn, the boom 6 and the arm 4 are folded, and the bucket 1 can be accommodated onto the side of a cabin 2. Then, a boom operating lever, arm operating lever, and an offset pedal are manually operated, and the boom angle, arm angle, offset starting angle and the offset completion angle are teaching-inputted into a controller. Offset operation is carried out automatically at the teached position.

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