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1. 发明专利

JPH08284867A HORIZONTAL SHAFT PUMP 失效
公开(公告)号：JPH08284867A
公开(公告)日：1996-10-29
申请号：JP9245995
申请日：1995-04-18
申请人： KUBOTA KK
发明人： MIURA AKIO
IPC分类号： F04D15/00 , F04D9/04 , F04D11/00 , F04D13/00
摘要： PURPOSE: To provide a horizontal shaft pump serving satisfactorily even in time of emergency by improving the extent of transfer responsiveness from air operation (preceding standby operation) to pumping operation. CONSTITUTION: In opposition to an inlet 3A of a main impeller 3, a suction impeller 8 is attached tight to a main shaft 7, and an outer diameter D1 at the inlet side of a blade 8a of this suction impeller 8 is set to a larger value than an outer diameter D2 at the inlet side of a blade 3a in the main impeller 3, and in the case where a water level of a water absorbing well 1 goes up to a pumping starting water level HWL, the vacuum system 2 is started, closing an inlet valve 9A, and the inside of a suction pipe 4 is made into the promotion of negative pressure. With this constitution, the water level in the pump is raised up to a level SL of an inlet of the blade 8a of the suction impeller 8 being larger in the outer diameter D1 at the inlet side, and water is fed to the main impeller 3 from the suction impeller 8, getting a self-priming capacity produced in the main impeller 3, and the water level in the pump is raised up to a level SL1 of the main shaft 7, whereby transfer from the air operation to the pumping operation is made.

2. 发明专利

JPH08100783A SUBMERGIBLE PUMP 失效
公开(公告)号：JPH08100783A
公开(公告)日：1996-04-16
申请号：JP23914894
申请日：1994-10-03
申请人： KUBOTA KK
发明人： DOI MASATO , MIURA AKIO , MURAGUCHI TAKESHI , ARAKI SHINICHIRO
IPC分类号： F04D13/08
摘要： PURPOSE: To suppress reduction of pump efficiency and also prevent air ventilating hole from clogging by foreign matters by forming a projection projected toward the inside of a casing on the rotating direction upstream position of an impeller which is provided in the vicinity of the air ventilating hole formed in the casing. CONSTITUTION: An air ventilating hole 8 is formed on a casing 2, and also a projection 9 projected toward the inside of the casing 2 is formed on the upstream position of rotating direction R of an impeller 1 provided in the vicinity of the air ventilating hole 8. Pressure of turning flow R1 of water which is generated in the casing 2 by rotation of the impeller 1 is reduced in the vicinity of the downstream side of the projection 9, namely, in the range of bias lines. Therefore, the amount of water injected from the air ventilating hole 8 at the time of operation of a submergible pump is reduced to the minimum so as to suppress reduction of pump efficiency, and also it is possible to prevent the air ventilating hole 8 from clogging by foreign matters, and avoid to lose discharging function of air.

3. 发明专利

JPH0861292A LIQUID CONTACT MEMBER BY ALUMINUM ALLOY CAST 失效
公开(公告)号：JPH0861292A
公开(公告)日：1996-03-08
申请号：JP19704994
申请日：1994-08-22
申请人： OFIC CO , KUBOTA KK
发明人： SHIMIZU TORU , TAMAKI YUKIO , MIURA AKIO
IPC分类号： F04D29/00 , B23K35/28
摘要： PURPOSE: To reduce weight and to posse excellent characteristics, such as wear resistance and corrosion resistance, by forming an Al-Cu alloy padding layer by TIG welding on the base material of an aluminum alloy cast. CONSTITUTION: A plurality of padding layers 2 of an Al-Cu alloy are formed on a base material 1 of an Al alloy cast to constitute a liquid contact member 3. Further, after the base material 1 of an aluminum alloy cast is molten, the base material 1 of the Al alloy cast is preheated and the Al-Cu alloy padding layers 2 are formed on the base material 1 by TIG welding. This way prevents the occurrence of breakage during welding of the Al-Cu alloy padding layers 2 and improves quality of the liquid contact member 3. Thus, the weight of a pump casing in a complicated shape to which breakage is apt to occur, namely, a pump casing in a complicated shape having diffuse vane formed of a base material of an aluminum alloy cast is reduced and excellent characteristics, such as wear resistance and corrosion resistance, are possessed.

4. 发明专利

JPH0834282A RADIO CONTROL TYPE DRAINAGE PUMP CAR 失效
公开(公告)号：JPH0834282A
公开(公告)日：1996-02-06
申请号：JP17099194
申请日：1994-07-22
申请人： KUBOTA KK
发明人： TANIGUCHI MASAHIRO , MIURA AKIO
IPC分类号： B60F3/00 , B60P3/00
摘要： PURPOSE:To quicken a communication starting time as well as to make the occurrence of any communicative interference eliminable by automating plural channel setting operations for a telemeter and a telecontrol transceiver. CONSTITUTION:A communication channel between a telemeter transmitter 14A in a transceiver 14 at the side of a control panel 13 of a drainage pump car 1 and a telemeter receiver 12A fin a transceiver 12 of a control panel 11 corresponding to the former 14A and another communication channel between a telecon transmitter 12B in the transceiver 12 of the control panel 11 and a telecon receiver 14B in the transceiver 14 at the side of the control panel 13 corresponding to the former 14B both are made into being grouped at each of plural channel numbers apploted at communicative frequency intervals different with one another.

5. 发明专利

JPH06240740A DRAINAGE PUMP VEHICLE 失效
公开(公告)号：JPH06240740A
公开(公告)日：1994-08-30
申请号：JP3049293
申请日：1993-02-19
申请人： KUBOTA KK
发明人： TAMAKI YUKIO , TANIGUCHI MASAHIRO , MIURA AKIO
IPC分类号： E03F7/10 , B60P3/00
摘要： PURPOSE:To enable water to be drained even at such a water's edge as prohibiting the ingress of an amphibian vehicle into a drainage zone. CONSTITUTION:A floatable slave vehicle 2 having a boat type sealed body 2A is carried to the water's edge in such state as loaded on a master vehicle 1 capable of travel on a weak subsoil and having an engine 4. Then, the slave vehicle 2 is launched from the water's edge to a drainage zone using, for example, a footboard as a guide, and drainage pumps 5A and 5B installed on the slave vehicle 2 are operated to drain water.

6. 发明专利

JPH06240739A DRAINAGE PUMP VEHICLE 失效
公开(公告)号：JPH06240739A
公开(公告)日：1994-08-30
申请号：JP3049193
申请日：1993-02-19
申请人： KUBOTA KK
发明人： TAMAKI YUKIO , TANIGUCHI MASAHIRO , MIURA AKIO
IPC分类号： E03F7/10 , B60P3/00
摘要： PURPOSE:To enable water to be drained even at such a water's edge as prohibiting the ingress of an amphibian vehicle into a drainage zone. CONSTITUTION:Drainage pumps 5A and 5B with floats and a hydraulic crane 2 for the loading and unloading thereof are carried to the water's edge in such a condition as loaded on a crawler vehicle 1 capable of travel on a weak subsoil and equipped with an engine. At the water's edge, the drainage pumps 5A and 5B with floats are lifted with the crane 2, and made to land on the water to start drainage operation.

7. 发明专利

JPH06240738A DRAINAGE PUMP VEHICLE 失效
公开(公告)号：JPH06240738A
公开(公告)日：1994-08-30
申请号：JP3049093
申请日：1993-02-19
申请人： KUBOTA KK
发明人： TAMAKI YUKIO , TANIGUCHI MASAHIRO , MIURA AKIO
IPC分类号： E03F7/10 , B60P3/00
摘要： PURPOSE:To alleviate a restriction on a transport means and keep such characteristics as allowing an agile motion by constructing an amphibian vehicle to be compact and lightweight. CONSTITUTION:An amphibian vehicle 2 having a float 2A and capable of travel on a weak subsoil is loaded on a transport vehicle 1 equipped with an engine 4 and hydraulic pumps 6A and 6B, and transported to a drainage work site. The amphibian vehicle 2 is driven from the work site to the water's edge, and launched to a drainage zone on the operation of the engine 4 and the hydraulic pumps 6A and 6B. In the drainage zone, drainage pumps 5A and 5B installed on the amphibian vehicle 2 are driven with the engine 4 and the hydraulic pumps 6A and 6B to drain water.

8. 发明专利

JP2001153084A SUBMERGED PUMP, AND METHOD FOR DRAINAGE BY DRAINAGE PUMP CAR, AND SUBMERGED PUMP 失效
公开(公告)号：JP2001153084A
公开(公告)日：2001-06-05
申请号：JP34211499
申请日：1999-12-01
申请人： KUBOTA KK
发明人： FURUKAWA HIROHIKO , FUJII SHIGEHIRO , MIURA AKIO
IPC分类号： F04D13/08
摘要： PROBLEM TO BE SOLVED: To provide a submerged pump, and a method for drainage by and a drainage pump car, the submerged pump capable of not only increasing the drainage amount of the drainage pump car so as to increase a drainage capacity and facilitating an installation work but also reducing a cost required for installation by easily allowing a movement by man-power and eliminating the need of the drainage pump car or a crane car having a lift mounted thereon. SOLUTION: This submerged pump 1 comprises a pump casing 2, a prime mover frame 3, and water-tight cover 4 formed integrally with each other. A pair of rolling rings 12A and 12B are fixedly fitted onto the outer peripheral surface of a cylindrical pump body 5 with a suction port 2B of the pump casing 2 kept open. A handle 13 is installed on the pump body 5 so that the submerged pump 1 can be moved while rolling the rolling rings 12A and 12B by man-power.

9. 发明专利

JP2984896B2 失效
公开(公告)号：JP2984896B2
公开(公告)日：1999-11-29
申请号：JP17099194
申请日：1994-07-22
申请人： KUBOTA KK
发明人： TANIGUCHI MASAHIRO , MIURA AKIO
IPC分类号： B60F3/00 , B60P3/00

10. 发明专利

JPH08207526A DRAINAGE PUMP VEHICLE 失效
公开(公告)号：JPH08207526A
公开(公告)日：1996-08-13
申请号：JP12720194
申请日：1994-06-09
申请人： OYODO KOMATSU , KUBOTA KK
发明人： MORIKAWA TAKAO , SATONE HIROYUKI , HANADA YUKINORI , TAMAKI YUKIO , TANIGUCHI MASAHIRO , MIURA AKIO
IPC分类号： B60F3/00 , B60P3/00
摘要： PURPOSE: To realize a drainage pump vehicle loaded with a drainage pump, excellent in traveling and stability of an off-road or under water and moreover adaptable to drainage work of a low water level. CONSTITUTION: In this drainage pump vehicle, a boat form body 3 is connected to a pair of right and left rubber-made crawlers 2, and a drainage pump 4 is vertically rotatably fitted to the protruded end part 3b of the body 3. Plural track rollers 9 to be engaged with the crawlers 2 are oil-impregnated waterproof type resin rollers. The body 3 has an rectangular box type upper buoyancy body 3a above the crawlers 2 and a box type lower buoyancy body 3c protruded in the middle between a pair of the crawlers 2 from the bottom plate of the upper buoyancy body 3a. The drainage pump 4 is vertically rotated by a hydraulic cylinder 5 with a fulcrum P, provided on the box type end part 3b of the upper buoyancy body 3a, as a center. The center of gravity of the drainage pump 4 is at the inner position of a vehicle than the fulcrum P at the upper limit position of the drainage pump 4, and a suction port is made downward in a lower position than the crawlers 2 at a lower limit position.

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