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1. 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.

2. 发明专利

JPH02252824A SAFETY MECHANISM OF BACK-HOE 失效
公开(公告)号：JPH02252824A
公开(公告)日：1990-10-11
申请号：JP7221789
申请日：1989-03-24
申请人： YANMAR DIESEL ENGINE CO , SEIREI IND
发明人： INOUE YUJI , NAKANO YOSHIKI , OHASHI TETSUHIRO , SHIMAZOE HIDEO
IPC分类号： E02F3/43 , E02F9/24 , F15B20/00
摘要： PURPOSE:To improve safety by providing an electromagnetic safety valve and releasing the supply of pilot pressure to a change-over valve provided between a manual controlling valve and an actuator on the basis of the detecting result of an emergency detector to close the change-over valve. CONSTITUTION:When a bucket 1 intrudes into a set dangerous area from the front for example, the excited condition of a boom stopping electromagnetic valve 25 and a solenoid of an arm stopping electromagnetic valve 26 is turned off and the electromagnetic valves is operated to the closing side by an urging spring provided on the opposite side to detect and calculate the intrusion of the bucket 1 into the set dangerous area and close a change-over valve. An electromagnetic safety valve 20 is provided for putting the pressure in a hydraulic circuit into zero which circuit supplies pilot pressure for operating respective emergency stop electromagnetic valves 24, 25, 26 and an automatic swing controlling valve 21 when abnormalities take place in the control circuit of a controller CPU to make forcible stop impossible or the like. Thus, safety can be improved by the double closing of the hydraulic circuit.

3. 发明专利

JPH01271529A AUTOMATIC OFFSETTING MECHANISM OF SMALL REVOLUTION TYPE BACKHOE 失效
公开(公告)号：JPH01271529A
公开(公告)日：1989-10-30
申请号：JP10059588
申请日：1988-04-22
申请人： YANMAR DIESEL ENGINE CO
发明人： NAKANO YOSHIKI , KATO KATSUNORI , INOUE YUJI
IPC分类号： E02F3/43
摘要： PURPOSE:To enhance the safety by folding a boom and an arm for accommodation of a bucket at the side of a cabin, and returning the bucket automatically to the accommodation position with maneuvering of a control lever to the accommodation side. CONSTITUTION:When the offset prohibited area as a hazardous area is approached, a boom solenoid proportional valve 37 and an arm solenoid proportional valve 38 are switched over to the port on the opposite side to operation of a manual control valve so as to stop rotation, when an offset solenoid proportional valve 39 is solely turned on. Then the level of a bucket 1 is checked to know whether or not the level is over the setting given by a bucket level setting switch 34. When an arm control lever 9a or a boom control lever is tuned fully, the proportional valve 39 is actuated to cause commencement of automatic return of bucket 1 to the accommodation position. When the bucket 1 is restituted to the standard position, the proportional valve 39 is switched over to the neutral.

4. 发明专利

JPH01271530A AUTOMATIC OFFSETTING MECHANISM OF SMALL REVOLUTION TYPE BACKHOE 失效
公开(公告)号：JPH01271530A
公开(公告)日：1989-10-30
申请号：JP10059688
申请日：1988-04-22
申请人： YANMAR DIESEL ENGINE CO
发明人： NAKANO YOSHIKI , INOUE YUJI
IPC分类号： E02F3/43 , E02F9/24
摘要： PURPOSE:To reduce the number of actions in maneuvering by offset moving a bucket automatically into the setting position in the position where turning of an arm support lever or a boom control lever to the work side causes the arm or boom angle to exceed a certain specified angle. CONSTITUTION:When a protrusion position auto-return switch 50 is turned on with start of excavating operation, the set rotational angle of an offset arm 22 is stored, and the revolving angle of a revolving table 12 is stored. Then soil and sand are scooped by a bucket 1, which is once accommodated at the side of a cabin 2, and after exhaust of the soil and sand, the revolving table 12 is returned to the original excavating position in this condition the bucket is accommodated. Then an arm control lever 9a or a boom control lever is fully turned, and an offset solenoid proportional valve 39 is actuated unless the arm 4 is in the prohibited zone, and an offset cylinder 3 will contract till the position of the setting rotational angle for the arm 22. When further the bucket 1 reaches the rotational angle setting position, the proportional valve 39 is deactuated, and a revolving solenoid proportional valve 51 is turned off.

5. 发明专利

JPS6147935B2 失效
公开(公告)号：JPS6147935B2
公开(公告)日：1986-10-22
申请号：JP14082080
申请日：1980-10-07
申请人： YANMAR DIESEL ENGINE CO
发明人： NAKANO YOSHIKI
IPC分类号： E02F3/76

6. 发明专利

JPS5766240A Blade support link device 失效
标题翻译：刀片支持链接设备
公开(公告)号：JPS5766240A
公开(公告)日：1982-04-22
申请号：JP14082080
申请日：1980-10-07
申请人： Yanmar Diesel Engine Co Ltd
发明人： NAKANO YOSHIKI
IPC分类号： E02F3/76
摘要： PURPOSE: To support a blade and perform tilting work by link by pivotally connecting one end of the link pivotally supported by a support frame to the blade through ball-joint and rotatably connecting the other end of the link to a tilt cylinder attached to the blade.
CONSTITUTION: A blade 4 is supported by a support frame 1 in a freely tilting angle adjustable manner. When one of angle cylinders 6a and 6b is extended and the other end is withdrawn, the blade 4 is bilaterally moved with a ball-joint 5 as the fulcrum, and at the same time an L-shaped link 10 is moved in the wake of the blade 4 in the same direction on the ball-joint 11 as the fulcrum. On the other hand, when a tilt cylinder 15 is extended in the direction of arrow A by tilting operation, a ball-joint part 13 is moved in the direction of arrow B on the ball-joint 11 as the fulcrum and the blade 4 is tilted counterclockwise on the ball-joint 5 as the fulcrum, whereupon the blade 4 is, at the same time, worked in the left direction through the ball-joint 16. In short, the blade 4 is tilted by the resultant force of the turning force of the link 10 and the propulsion of the tilt cylinder 15, thus increasing the tilting force.
COPYRIGHT: (C)1982,JPO&Japio
摘要翻译：目的：为了支撑刀片并通过将支撑框架枢轴支撑的连杆的一端通过球形接头枢转地连接到刀片上并通过将连杆的另一端可旋转地连接到安装在刀片上的倾斜缸来连接而进行倾斜工作。构成：刀片4由支撑框架1以可自由倾斜的角度可调方式支撑。当角缸4和6中的一个延伸并且另一端被拉出时，叶片4以作为支点的球窝接头5进行双向移动，并且同时在L形连杆10的后面移动叶片4在球形接头11上以相同的方向作为支点。另一方面，当倾斜缸15通过倾斜操作沿箭头A的方向延伸时，球形接头部13作为支点而在球形接头11上沿箭头B的方向移动，并且刀片4为在作为支点的球接头5上逆时针方向倾斜，于是叶片4同时通过球形接头16在左方向上作用。简而言之，刀片4通过转动的合力而倾斜连杆10的力和倾斜缸15的推进，从而增加了倾斜力。

7. 发明专利

JPH03236580A CONTROL MECHANISM FOR REFRIGERATING MACHINE 失效
公开(公告)号：JPH03236580A
公开(公告)日：1991-10-22
申请号：JP3304090
申请日：1990-02-13
申请人： YANMAR DIESEL ENGINE CO
发明人： FUKUTOME JIRO , SASAKI TAKASHI , NAKANO FUMIO , NAKANO YOSHIKI
IPC分类号： B63J2/12 , F25B1/00 , F25B41/04 , F25D13/00 , F25D29/00
摘要： PURPOSE:To improve the stability of control by a method wherein the temperature of indirect refrigerant, effecting heat exchange in an evaporator, is controlled at a set temperature by using both of an opening and closing solenoid valve and a solenoid flow control valve in a bypass passage while the objective temperature of the outlet port temperature of the indirect refrigerant is changed automatically. CONSTITUTION:A circuit from an evaporator 4 to a compressor 3 is provided with a solenoid flow control valve 2 and a bypass passage 5 for releasing high-temperature and high-pressure overheated steam from a space between the compressor 3 and the condenser 6 into a space between an expansion valve 11 and the evaporator 4. The bypass passage 5 is provided with an opening and closing solenoid valve 1 and the flow rate of refrigerant is controlled by a solenoid flow control valve 2 while the bypass passage 5 is controlled by the ON-OFF of the opening and closing solenoid valve 1. An inlet temperature sensor 17 is provided at the inlet port of the evaporator 4 for sea water or the indirect refrigerant and an outlet temperature sensor 18 is provided at the outlet port of the same while the inlet temperature is compared with a set temperature or an objective temperature is compared with the set temperature and the objective temperature of the outlet temperature is changed and the outlet temperature is controlled by the flow control of the solenoid flow control valve 2 and the ON-OFF control of the solenoid valve 1 of the bypass passage 5 so as to obtain the objective temperature.

8. 发明专利

JPH02252827A MECHANISM FOR OPERATING SWINGABLE BACK-HOE 失效
公开(公告)号：JPH02252827A
公开(公告)日：1990-10-11
申请号：JP7221889
申请日：1989-03-24
申请人： YANMAR DIESEL ENGINE CO
发明人： NAKANO YOSHIKI , INOUE YUJI
IPC分类号： E02F9/22 , E02F3/32
摘要： PURPOSE:To prevent artificial accidents by enabling the automatic swing of a service machine interlocked with the operation of a manual control parts for controlling the vertical and horizontal swings of the service machine while enabling the control of automatic swing speed. CONSTITUTION:An electromagnetic proportional pressure reducing valve A is provided with a coil 48, core 47 loose fitted in the coil 48 and spool 44 having lands 50, 51. By the operation of a boom operating lever 9a and arm operating lever 9b of manual control member, a digital signal subjected to A/D conversion is converted to analog voltage through a controller CPU to excite the coil 48 through an electromagnetic valve drive circuit. By opening and closing the valve A in proportion to the operation amounts of levers 9a, 9b, the automatic swing for receiving and extruding a bucket with speed proportional to the operation force of the lever 9a, 9b is carried out, so that artificial accidents can be prevented.

9. 发明专利

JP2544176B2 失效
公开(公告)号：JP2544176B2
公开(公告)日：1996-10-16
申请号：JP10059788
申请日：1988-04-22
申请人： YANMAR DIESEL ENGINE CO
发明人： NAKANO YOSHIKI , INOE JUJI , FURUKI KUNIO
IPC分类号： A01B63/10 , A01B63/00 , E02F3/43 , E02F9/20 , E02F9/22 , F15B11/00

10. 发明专利

JP2544175B2 失效
公开(公告)号：JP2544175B2
公开(公告)日：1996-10-16
申请号：JP10059588
申请日：1988-04-22
申请人： YANMAR DIESEL ENGINE CO
发明人： NAKANO YOSHIKI , KATO KATSUNORI , INOE JUJI
IPC分类号： E02F3/43

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