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1. 发明专利

JP2004198423A Method of measuring load weight on load support means in hydraulic lifter 有权
标题翻译：液压承载力测量负荷重量的方法
公开(公告)号：JP2004198423A
公开(公告)日：2004-07-15
申请号：JP2003419083
申请日：2003-12-17
申请人： Jungheinrich Ag , ユングハインリヒ・アーゲー
发明人： ALLERDING UWE , LEHNART SEBASTIAN
IPC分类号： G01G5/04 , B66F9/24 , G01G19/10
CPC分类号： G01G19/10
摘要： PROBLEM TO BE SOLVED: To easily provide an accurate value of a load weight on a load support means in a hydraulic lifter.
SOLUTION: In this method for measuring the load weight on the load support means in the hydraulic lifter of an industrial truck wherein pressure of a hydraulic fluid in a lift cylinder 10 is measured, wherein a reference curve expressing a relation between the load weight and hydraulic pressure is determined based on a plurality of measured values of the pressures by the known weight to store the reference curve, the method is provided with a following step: the load support means is lifted up in a short period according to the requirement of an operator or an automatic means to detect the load weight before a lifting-up and -down operation for the load and in the lifting-up and -down operation therefor, the plurality of measured values of the pressures is obtained during the lifting-up and -down of the load support means in the short period, a pair of average values of the pressure measured values is generated in each of lifting-up 14 and lowering 16, the third average value of the paired average values is generated in each of the lifting-up and the lowering, and the third average value is applied to the reference curve to determine the load weight.
COPYRIGHT: (C)2004,JPO&NCIPI
摘要翻译：要解决的问题：为了容易地提供液压提升器中的负载支撑装置上的负载重量的精确值。解决方案：在该方法中，用于测量在其中测量提升缸10中的液压流体的压力的工业车辆的液压升降器中的负载支撑装置上的负载重量，其中表示负载之间的关系的参考曲线重量和液压根据已知重量的多个压力测量值来确定以存储参考曲线，该方法具有以下步骤：负载支撑装置根据要求在短时间内提升的操作者或自动装置，用于检测在负载的升降操作期间和在起升和下降作业中的负载重量，在升降过程中获得多个测量值，在短时间内负载支撑装置的上下降，在提升部14和下降部16中产生压力测量值的一对平均值，第三平均值在提升和降低的每一个中产生成对的平均值，并且将第三平均值应用于参考曲线以确定负载重量。版权所有（C）2004，JPO＆NCIPI

2. 发明专利

JP2857855B2 失效
公开(公告)号：JP2857855B2
公开(公告)日：1999-02-17
申请号：JP32385295
申请日：1995-11-17
申请人： NIIGATA DENKI KK
发明人： ISHIMARU TAMINOE , YANAGI KAZUTAKA
IPC分类号： G01G5/04 , G01G17/04 , G01G23/01 , G01G23/48 , G01W1/14

3. 发明专利

JPH10227682A WEIGHT SENSOR 失效
公开(公告)号：JPH10227682A
公开(公告)日：1998-08-25
申请号：JP4729997
申请日：1997-02-14
申请人： TOYONAKA KEISO KK
发明人： KOTANI KATSUYA
IPC分类号： G01G5/04 , G01L1/02
摘要： PROBLEM TO BE SOLVED: To obtain a weight sensor manufactured by a low cost by simply altering a weight range to be measured. SOLUTION: A weight sensor 10 comprises a container 12 having flexibility. Fluid 14 such as the air, water or oil is sealed in the container 12. A pressure sensor 16 is mounted in an opening of the container 12. A pressure receiving plate 18 is placed on the container 12, and material 20 to be measured is placed on the plate 18. A weight of the material 20 is transmitted to fluid 14 via the plate 18, and pressure change of the fluid 14 is detected by the sensor 16. A weight of the material 20 is detected from an output signal of the sensor 16 and an area of the plate 18.

4. 发明专利

JPH1038669A WEIGHT DETECTOR 失效
公开(公告)号：JPH1038669A
公开(公告)日：1998-02-13
申请号：JP19261496
申请日：1996-07-23
申请人： FUJI ELECTRIC CO LTD
发明人： MATSUMOTO IWAO
IPC分类号： G01G3/00 , G01G3/13 , G01G5/04 , G01G23/365
摘要： PROBLEM TO BE SOLVED: To make the error of a weight detector resulting from the mechanical wear of a switch to hardly occur by constituting the switch by insulating the upper and lower surfaces of an elastic body on which an object to be measured and a pan are placed with cradles and providing electric contacts on the facing surfaces of the cradles. SOLUTION: A switch is constituted by providing an elastic body 8 on which an object 3 to be measured and a pan 9 are placed and the upper and lower surfaces of the body 8 are electrically insulated with cradles 10a and 10b and, at the same time, providing contacts 8a and 8b on the facing surfaces of the cradles 10a 10b . The elastic body 8 shrinks beyond the points where the contacts 8a and 8b come into contact with each other when the weight of the object 3 is heavier than a prescribed value and, when the weight is becomes lighter than the prescribed value, the body 8 elongates. Since the electrically independently provided contacts 8a and 8b are separated from each other by the cradles 10a and 10b made of an insulator, the electric circuit is disconnected and the current flowing from a power source 7 is interrupted, resulting in the turning off of a warning lamp 6. Therefore, the weight measuring error of a weight detector resulting from the mechanical wear of the switch becomes smaller and the detector can detect the weight of the object 3 with high accuracy.

5. 发明专利

JP2659444B2 失效
公开(公告)号：JP2659444B2
公开(公告)日：1997-09-30
申请号：JP50599989
申请日：1989-05-09
申请人： KYATAPIRAA INC
发明人： KIRUTSUOSU KURISUTOSU TEII , UOORERU DEIIN EI
IPC分类号： E02F9/26 , G01G5/04 , G01G19/10
摘要： A dynamic payload monitor measures and displays payload weight for a loader vehicle by sensing the hydraulic pressure and position of the lift arm cylinders. The payload weight is computed by curve fitting the sensed cylinder pressure and position data to a second order polynomial, and then performing interpolation or extrapolation with a pair of pressure versus position reference parabolas obtained during calibration. The weight computation algorithms used in the dynamic payload monitor are applicable to a number of work vehicles having at least one work implement linkage and at least one hydraulic cylinder for modifying the linkage geometry.

6. 发明专利

JPH07151591A DEVICE FOR MEASURING WEIGHT AND GRAVITY CENTER POSITION OF LARGE STRUCTURE 失效
公开(公告)号：JPH07151591A
公开(公告)日：1995-06-16
申请号：JP32342593
申请日：1993-11-30
申请人： MITSUBISHI HEAVY IND LTD
发明人： KUNIMOTO ETSUO , KANEDA NAOZO
IPC分类号： G01G5/04 , G01M1/12
摘要： PURPOSE:To obtain a measuring device which calculates the weight and the position of the center of gravity without making a complicated calculation, calculating with little error, as to a measuring device to find the weight and the position of the center of gravity of a large structure such as a vessel and a bridge. CONSTITUTION:A large structure 1 is loaded and supported on numeral hydraulic cylinders 21 to 26, and the hydraulic cylinders 21 to 26 are connected to pressure accumulators 31 respectively. Pressure sensors 41 measure the hydraulic pressures of the cylinders 21 to 26, and they are connected to a computer 6 through an amplifier 5. The outputs of the pressure measuring system are calculation processed by the computer 6. The forces generated by the cylinders are found from the hydraulic pressures of numerous hydraulic cylinders, and the total value is made as the weight of the structure to be measured. And the position joining the forces of all the holding cylinders 21 to 26 is found, and the position is made as the position of the center of gravity of the structure to be measured.

7. 实用新型

JPH06736Y2 失效
公开(公告)号：JPH06736Y2
公开(公告)日：1994-01-05
申请号：JP2164587
申请日：1987-02-16
IPC分类号： E02F3/36 , E02F9/26 , G01C5/00 , G01G5/04 , G01G19/08

8. 实用新型

JPH0533938Y2 失效
公开(公告)号：JPH0533938Y2
公开(公告)日：1993-08-27
申请号：JP2358487
申请日：1987-02-19
IPC分类号： G01N5/04 , G01G1/22 , G01G5/04 , G01G19/00

9. 发明专利

JPH0489530A PNEUMATIC EXPLOSION-PROOF LOAD METER 失效
公开(公告)号：JPH0489530A
公开(公告)日：1992-03-23
申请号：JP20565090
申请日：1990-08-01
申请人： BRIDGESTONE CORP
发明人： OKUNI SHINICHIRO
IPC分类号： G01G5/04
摘要： PURPOSE:To exclude a danger even in an explosive atmosphere by moving a piston for return by supplying compressed air into a cylinder chamber on the side whereon a volume is reduced by a substance to be measured, and by measuring the load of the substance from an air pressure. CONSTITUTION:When a substance 6 to be measured is put on a scale 5, a piston 3 lowers, a sensing nozzle 14 and a plate 13 are brought into contact with each other and the piston comes to a standstill. When compressed air is sent from a regulator 10 into a cylinder chamber B then, it fills up the chamber B and further jets out from the sensing nozzle 14 through a pipe 11. By increasing the pressure of this compressed air, a gap between the nozzle 14 and the plate 13 becomes large gradually and also the piston 3 rises. An air pressure in the chamber B at the time when the piston 3 moves and returns to a prescribed position is measured by a detecting sensor in an air pressure display device and the load of the substance 6 to be measured is known thereby. In this way, no electric circuit is employed on the explosion-proof area side, and thereby high safety is secured even in an explosive atmosphere.

10. 发明专利

JPH0489529A PNEUMATIC EXPLOSION-PROOF LOAD METER 失效
公开(公告)号：JPH0489529A
公开(公告)日：1992-03-23
申请号：JP20564990
申请日：1990-08-01
申请人： BRIDGESTONE CORP
发明人： OKUNI SHINICHIRO
IPC分类号： G01G5/04
摘要： PURPOSE:To exclude the possibility of ignition, explosion, etc. even in an explosive atmosphere by putting a substance to be measured on the movable side of a pneumatic cylinder and by measuring the load of the substance from an air pressure at the time when the return movement of a piston to a prescribed control position is ended. CONSTITUTION:When a substance 6 to be measured is put on a scale 5, a piston 3 lowers from a prescribed position in a cylinder tube 2. This lowering is read by an explosion-proof encoder 12 and transmitted to a position control device 11. Based on the data thus obtained, the device 11 adjusts air pressures in chambers A and B of the tube 2 and thereby the piston 3 is moved to return to the prescribed position. The load of the substance is measured from the air pressures at this time. In this way, no electric circuit is employed in an explosion-proof area, and thereby the title meter can be used in an explosive atmosphere.

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