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1. 发明专利

JPH1037747A COOLING DEVICE FOR TRANSMISSION 失效
公开(公告)号：JPH1037747A
公开(公告)日：1998-02-10
申请号：JP19039996
申请日：1996-07-19
申请人： KUBOTA KK
发明人： HIRAOKA MINORU , YONEDA YUTAKA , MIYANO YOSHIMI , MOTOMURA MINEYOSHI , TAKAYAMA YOSHIHIRO
IPC分类号： F02B61/06 , F01P11/08
摘要： PROBLEM TO BE SOLVED: To efficiently cool a belt continuous variable transmission mechanism assembled in a gear transmission by the use of its structure. SOLUTION: A transmission unit 21 is provided with an advancing/reversing changeover gear mechanism, advancing and reversing hydraulic clutches therefor, and a control valve which control their changeover. The transmission unit 21 is directly mounted on an outer surface of a transmission case 2a. In an operation oil cooling circuit L, oil discharged from the transmission unit 21 to which discharge oil from a hydraulic pump 16 is fed is extracted from an outlet 22 inside the transmission case 2a and returned to the hydraulic pump 16 through an oil cooler 17. A belt case 1a of a belt continuously variable transmission mechanism 1 for providing a transmission 2 with power is directly connected to the transmission case 2a for easy heat conduction.

2. 发明专利

JPH1035303A TRANSMISSION GEAR OF WORKING MACHINE 失效
公开(公告)号：JPH1035303A
公开(公告)日：1998-02-10
申请号：JP19039896
申请日：1996-07-19
申请人： KUBOTA KK
发明人： HIRAOKA MINORU , YONEDA YUTAKA , MIYANO YOSHIMI , MOTOMURA MINEYOSHI , TAKAYAMA YOSHIHIRO
IPC分类号： B60K17/08 , F16H9/18 , F16H61/28 , F16H61/662
摘要： PROBLEM TO BE SOLVED: To make the constitution of a transmission gear simple and compact and facilitate the inspection/maintenance. SOLUTION: A belt transmission unit U is constituted by equipping a belt case 1a surrounding a belt continuously variable transmission mechanism 1 constituted by providing a pair of split pulleys in which belt winding radii can be changed and adjusted integrally with a gear shift lever 9 performing a magnifying/reducing operation for the belt winding radius of a driving side split pulley and an assist mechanism B assisting operating force of the gear shift lever 9. The belt transmission unit U is attachably/detachably installed in a mission case 2a which is internally equipped with a gear shift mechanism of a travelling system.

3. 发明专利

JPH0968277A RUNNING AND SHIFT STRUCTURE OF WORKING VEHICLE 失效
公开(公告)号：JPH0968277A
公开(公告)日：1997-03-11
申请号：JP22149295
申请日：1995-08-30
申请人： KUBOTA KK
发明人： EMA HIROAKI , UEDA SUEZO , HIRAOKA MINORU , MOTOMURA MINEYOSHI
IPC分类号： F16H9/18 , F16H59/06 , F16H61/28 , F16H61/36 , F16H63/06
摘要： PROBLEM TO BE SOLVED: To hold a speed change operation unit at a desired operating position without preparing a worm reduction mechanism or an exclusive friction holding mechanism, in running and shift structure which is composed by interlocking and connecting a shift operation unit and a CVT device for running mechani cally, and giving the motive power of the speed change operation unit regularly and reversely along the operating direction of the speed change operation unit as an assist force. SOLUTION: When a shift operation unit 26 is not operated artificially, a holding current to hold a CVT device 3 at the shift position against the return of the CVT device 3 to the low speed side is fed to an electric motor 23, the assist force of the electric motor 23 and the CVT device 3 are balanced, and the shift operation unit 26 and the CVT device 3 are held at a desired operating position (shift position). When the running load applied to the machine body is reduced, the feeding of the holding current is stopped.

4. 发明专利

JPH0820249A SPEED CHANGE STRUCTURE OF WORKING VEHICLE 失效
公开(公告)号：JPH0820249A
公开(公告)日：1996-01-23
申请号：JP15768194
申请日：1994-07-08
申请人： KUBOTA KK
发明人： HIRAOKA MINORU , MOTOMURA MINEYOSHI
IPC分类号： B60K17/08
摘要： PURPOSE:To restrain instantaneous overload or the like from being transmitted to a belt type continuously variable transmission from the travel device side. CONSTITUTION:A forward hydraulic clutch 6 for transmitting forward power to the transmission lower side in a transmission case 3, and a reverse hydraulic clutch 8 for transmitting reverse power to the transmission lower side in the transmission case 3 are disposed at the transmission upper side part in the travel transmission case to which speed change output from a belt type continuously variable transmission 1 is inputted. An auxiliary transmission 28 is disposed on the transmission lower side of the forward and reverse hydraulic clutches 6, 8.

5. 发明专利

JPH0747870A RUNNING TRANSMITTING STRUCTURE FOR WORK VEHICLE 失效
公开(公告)号：JPH0747870A
公开(公告)日：1995-02-21
申请号：JP19615593
申请日：1993-08-06
申请人： KUBOTA KK
发明人： MINAMI TERUO , HIRAOKA MINORU , TEI SAIKIYOU , UJITA TSUGINOBU , MOTOMURA MINEYOSHI
IPC分类号： B60K17/08 , B60W10/02 , B60W10/10 , B60W10/11 , B60W10/12 , F16H61/16 , B60K41/22
摘要： PURPOSE:To provide a constitution wherein a brake can be applied to a machine body with no exclusive use brake equipped, when temporarily stopped by operating a continuously variable transmission in a neutral position. CONSTITUTION:A transmitting system in an output side of a continuously variable transmission 1 is branched parallelly into two systems, to provide, in each of these two branched transmitting systems, a forward clutch FC for transmitting advancing power and a reverse clutch RC for transmitting reversing power, and when the continuously variable transmission is operated in a neutral position, both the forward/reverse clutches FC, RC are connected in-operation to place a machine body in a condition of virtually applying a brake.

6. 发明专利

JP2002176824A MULTI-ROW REAPING COMBINE HARVESTER 失效
公开(公告)号：JP2002176824A
公开(公告)日：2002-06-25
申请号：JP2000377174
申请日：2000-12-12
申请人： KUBOTA KK
发明人： KANAI YOSHIHIDE , MAEDA ICHIRO , MOTOMURA MINEYOSHI , MATSUBARA KAZUAKI , YAMAMOTO HIROAKI
IPC分类号： A01D69/06 , A01D57/00 , A01D57/22 , A01D61/00
摘要： PROBLEM TO BE SOLVED: To carry out smooth rear transportation with slight damage to a transmission structure or slight posture disorder in transportation of reaped grain culms irrespective of the presence of the transmission structure for an intermediate raising up device while transmitting a power from a lower part by omitting a power distribution shaft in the upper part over the respective raising up devices in a multiple-row reaping combine harvester equipped with the three or more raising up devices. SOLUTION: This multi-row reaping combine harvester is obtained by installing second transmission shafts 17 for the left and the right raising up devices 7 in an upright state at respective left and right ends of a first transmission shaft 16 arranged in a transversely directed transmission case 30, transmitting a power to the raising up device 7 in the intermediate part with a fourth transmission shaft 34 installed in an upright state through a third transmission shaft 33 for leading out the power from the left and right intermediate part to the front side, composing a joining transporting passage R for a pair of left and right second transporting devices 10 of parallel transporting parts 10r arranged nearly parallel so as to nip plant feet of reaped grain culms from both sides and transport the reaped grain culms in the same direction, arranging the parallel transporting parts 10r in a state so as to stride over the transversely directed transmission case 30 and installing the fourth transmission shaft 34 at the front separated from the parallel transporting parts 10r.

7. 发明专利

JPH1189416A GRAIN TANK STRUCTURE IN COMBINE HARVESTER 失效
公开(公告)号：JPH1189416A
公开(公告)日：1999-04-06
申请号：JP25444697
申请日：1997-09-19
申请人： KUBOTA KK
发明人： FURUNO FUMIO , YASUDA KAZUO , UEDA SUEZO , MOTOMURA MINEYOSHI
IPC分类号： A01F12/60
摘要： PROBLEM TO BE SOLVED: To obtain a grain tank structure in a combine harvester capable of easily and readily attaching and detaching a tank main body and improving operability or handleability by making handles for supporting the tank main body be held at an upper end side and a lower end side of the tank main body. SOLUTION: This grain tank structure in a combine harvester has a tank main body 30a of a grain tank 30 for storing threshed grain, made of a synthetic resin, and detachably connected to a tank base part 30b of the grain tank 30, and has handles 39 for supporting the tank main body 30a at an upper end side and a lower end side of the tank main body 30a. Preferably, a connecting part 43 of the tank main body 30a is connected by inserting the part 43 into a supporting part 53 of the tank base part 30b.

8. 发明专利

JPH0999854A TRAVELING HYDRAULIC DEVICE FOR COMBINE 失效
公开(公告)号：JPH0999854A
公开(公告)日：1997-04-15
申请号：JP25966995
申请日：1995-10-06
申请人： KUBOTA KK
发明人： HIRAOKA MINORU , MOTOMURA MINEYOSHI , MIYANO YOSHIMI
IPC分类号： B62D11/08
摘要： PROBLEM TO BE SOLVED: To lightly and quickly stop a travel device. SOLUTION: An unloading valve 36 is provided on a hydraulic fluid feed path to a forward hydraulic clutch FC and a reverse hydraulic clutch RC, and an operation pedal 38 for switching the unloading valve 36 is provided. The hydraulic fluid feed to both hydraulic clutches FC, RC provided on a travel transmission system is cut off by the depressing action of the operation pedal 38, the nontransmission state appears, and a travel device is stopped.

9. 发明专利

JPH08140460A VARIABLE SPEED GEAR FOR WORKING VEHICLE 失效
公开(公告)号：JPH08140460A
公开(公告)日：1996-06-04
申请号：JP28623294
申请日：1994-11-21
申请人： KUBOTA KK
发明人： HIRAOKA MINORU , MOTOMURA MINEYOSHI , MIYANO YOSHIMI
IPC分类号： A01B71/02 , A01D69/00 , B60K17/08 , F02D29/00 , F16H59/06 , F16H61/12 , F16H63/40 , F16H63/50
摘要： PURPOSE: To provide a variable speed gear for a working vehicle capable of stopping engine and preventing burning of belt, etc., when output detection means detects to change over in a state in which output is not carried out after detecting output state once in a state in which a neutral detecting means detects speed change position other than neutral. CONSTITUTION: This apparatus is provided with a belt type continuously variable gear 1 and gear type transmission 19 further changing speed of the power from the belt type variable gear 1, a neutral detecting meas for detecting that belt type continuously variable gear 1 is set at neutral position for changing speed and an output detecting means 43 for detecting output state of gear type transmission 19. A controlling apparatus for stopping the engine E when the output detection means 43 detected to change over in a state not outputting after detecting output state in a state in which a neutral detection means detects to be speed change position other than neutral, is attached.

10. 发明专利

JPH07332473A COOLING STRUCTURE FOR BELT CONTINUOUSLY VARIABLE GEAR SHIFTER 失效
公开(公告)号：JPH07332473A
公开(公告)日：1995-12-22
申请号：JP12603994
申请日：1994-06-08
申请人： KUBOTA KK
发明人： HIRAOKA MINORU , UJITA TSUGINOBU , MOTOMURA MINEYOSHI
IPC分类号： F16H9/12 , F16H57/035 , F16H57/04
摘要： PURPOSE:To perform high-efficient cooling of a case packing type belt continuously variable gear shifter which is thermally sever. CONSTITUTION:In a belt continuously variable speed shifter wherein both drive and driven pulleys PK and PJ are formed in division pulley structure, a ventilation inlet 20 is formed in the part on the driven pulley PJ side of a transmission case Ca and a ventilation outlet 22 in the part on the drive pulley PK side thereof. An input pulley 4 made of a plate for taking in a power is mounted on the outer part of the transmission case Ca of a drive shaft 1 having a drive pulley PK. An induction type ventilation fan 23 is formed integrally with the input pulley 4. The ventilation fan 23 is arranged in the vicinity of an ventilation outlet 22 so that through rotation of the ventilation fan 23, induction ventilation operation in the transmission case Ca through ventilation outlet 22 is practicable. A cooling fan 24 to blow induction ventilation against the outer surface of the transmission case for cooling is formed integrally with the input pulley 4.

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