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1. 发明专利

JP2002262635A MOWER 失效
公开(公告)号：JP2002262635A
公开(公告)日：2002-09-17
申请号：JP2001064657
申请日：2001-03-08
申请人： KUBOTA KK
发明人： ISHIMORI SHOZO , KAWABATA HIROSHI , FUJII TAKASHI , HARADA NOBUYA
IPC分类号： A01D34/63 , A01D34/64
摘要： PROBLEM TO BE SOLVED: To provide a mower designed to prevent its steering ambience from being aggravated due to conveying air released from a grass collection vessel toward the traveling machine body side. SOLUTION: This mower has the following construction: a grass collection vessel C is made up of the vessel body for housing cut grass therein and a front wall 20 covering the front face of the vessel body, and an air vent through which cut grass conveying air introduced into the vessel body is discharged is opened behind the rear wheel 2 of a traveling machine body A at the front wall 20 and a dust cover 52 for covering the air vent from the front side is provided.

2. 发明专利

JPH11268542A OPERATOR CAB STRUCTURE OF WORK MACHINE 失效
公开(公告)号：JPH11268542A
公开(公告)日：1999-10-05
申请号：JP7791598
申请日：1998-03-25
申请人： KUBOTA KK
发明人： MURAKAWA MASATAKE , HAYASHI MASAKI , YAMASHITA NOBUYUKI , KAMIMURA KATSUHIKO , TOMIYAMA YOSHIO , HARADA NOBUYA , FUJII TAKASHI , OSHIMA HIROSHI , KAWABATA HIROSHI
IPC分类号： B62D25/04 , B60J9/04
摘要： PROBLEM TO BE SOLVED: To provide the operator cab of a work machine having an effective and protective function to an outside environment even in miniature, light, and enexpensive. SOLUTION: A pipe-frame-made canopy A for covering the front, upper, and rear part of an operator cab 7, is provided in a closed attitude suitable at the time of travel while a driver is seated on the operator cab 7, or in an opened attitude suitable at the time of boarding and alighting to the operator cab 7 in order to make the attitudes freely changeable, and also plural air blowoff ports 24 for forming an air curtain on the lateral side part of the operator cab 7 are provided on the end part in a right and left direction in the canopy A. An intake port 29 for an engine cooling air is formed on an operation panel wall 28.

3. 发明专利

JPH1148812A TRANSMISSION STRUCTURE FOR WORK VEHICLE 失效
公开(公告)号：JPH1148812A
公开(公告)日：1999-02-23
申请号：JP20905397
申请日：1997-08-04
申请人： KUBOTA KK
发明人： KAMIMURA KATSUHIKO , OGASAWARA HIROYUKI , YAMASHITA NOBUYUKI , MURAKAWA MASATAKE , HARADA NOBUYA
IPC分类号： B60K20/02 , F16H61/26
摘要： PROBLEM TO BE SOLVED: To provide transmittion structure for a work vehicle which can avoid disadvantages of the deterioration of stability of a vehicle body and damages likely to happen due to contact of a running transmission system and linking mechanisms for transmission or for braking with other objects, and which is advantageous in aspects of manufacture and maintenance. SOLUTION: In a transmission structure for a work vehicle, an intermediate transmission member 33 extending over a left and a right frame 4A, 4B to relatively turnably mounted on an operating shaft 26 laid over the left and right frame 4A, 4B so as to be turntable around a lateral axis P1, the right end of the operating shaft 26 is linked to one of a shifting pedal 25 and a brake pedal 24 on the right side of a vehicle body, the left end of the operating shaft 26 is linked to one operating arm 8b, 23a of a static hydraulic-type continuously variable transmission device 8 or of a braking device 23 on the left side of the vehicle body corresponding to the one pedal 25 or 24, the right end of the intermediate transmission member 33 to linked to the other pedal 25 or 24, the left end of the intermediate transmission member 33 is linked to the other operating arm 8b or 23a corresponding to the other pedal 25 or 24.

4. 发明专利

JPH1120730A STEERING-LINK ADJUSTING STRUCTURE OF WORK VEHICLE 失效
公开(公告)号：JPH1120730A
公开(公告)日：1999-01-26
申请号：JP17952897
申请日：1997-07-04
申请人： KUBOTA KK
发明人： HARADA NOBUYA , YUKI MIKIO , FUJII TAKASHI , MURAKAWA MASATAKE , HAYASHI MASAKI , NAGAI HIROKI , OGASAWARA HIROYUKI
IPC分类号： B62D7/18
摘要： PROBLEM TO BE SOLVED: To enable assembling and adjustment of a steering operation system without using a special gauge, by conducting setting such that a lateral side running along the longitudinal direction of a knuckle arm linked to a drag ring and an outside surface of a body frame makes a right angle with each other, in a state that steerable wheels are set in a straight advancing posture. SOLUTION: In a state that front wheels 10 are set in a straight advancing posture, a lateral side 14a of a front part of a left knuckle arm 14 and a left outside surface 4a of a body frame 4 are set so as to make a right angle with each other. By this, squareness of the side surface 14a of the knuckle arm 14 to the left outside surface 4a of the body frame 4 can be ascertained by a square, etc., used generally in inspection of squareness or in marking work, if a special gauge is not used, in work for setting the front wheels 10 in a straight advancing posture. Accordingly, setting of the front wheels 10 in a straight advancing posture can be conducted easily and accurately and workability at the time of assembly or adjustment of a steering operation system is improved.

5. 发明专利

JPH10276532A MOWER ELEVATING AND LOWERING OPERATOR FOR LAWN MOWER 失效
公开(公告)号：JPH10276532A
公开(公告)日：1998-10-20
申请号：JP8484897
申请日：1997-04-03
申请人： KUBOTA KK
发明人： HAYASHI MASAKI , MURAKAWA MASATAKE , KUROHARA KAZUAKI , YAMASHITA NOBUYUKI , YUKI MIKIO , HARADA NOBUYA
IPC分类号： A01D34/64 , A01D34/74
摘要： PROBLEM TO BE SOLVED: To suppress the floating and sinking of a mower at the time of operating the mower while satisfactorily maintaining elevating operability. SOLUTION: The mower elevating/lowering operation device for a lawn mower is provided with an elevating/lowering operation lever 11 for elevating/ lowering-operating a mower B connected to a self-traveling device body and provided with an assisting means reducing elevating operation force required for elevate-operating the lever 11 by adding elevating assist force at the time of elevate-operating the mower B by this lever 11. In this case, a means always giving first elevating assist force F1 and giving second elevating assist force F2 only at the time of operating elevating is provided as the assist means.

6. 发明专利

JP2777007B2 失效
公开(公告)号：JP2777007B2
公开(公告)日：1998-07-16
申请号：JP4944492
申请日：1992-03-06
申请人： KUBOTA KK
发明人： HARADA NOBUYA
IPC分类号： B60K26/02 , B60K26/04

7. 发明专利

JPH10113029A RIDING LAWN MOWER 失效
公开(公告)号：JPH10113029A
公开(公告)日：1998-05-06
申请号：JP27193896
申请日：1996-10-15
申请人： KUBOTA KK
发明人： KAMIMURA KATSUHIKO , OGASAWARA HIROYUKI , HAYASHI MASAKI , YAMASHITA NOBUYUKI , TOMIYAMA YOSHIO , KUROHARA KAZUAKI , MURAKAWA MASATAKE , NAGAI HIROKI , YAMAGUCHI MASATOSHI , YUKI MIKIO , HARADA NOBUYA
IPC分类号： A01D34/64 , A01D34/76
摘要： PROBLEM TO BE SOLVED: To provide a riding lawn mower capable of preventing the damage of a transmission system and securing the wide elevating and lowering space of a mower by respectively arranging an intermediate case on the front side of a mission case and a continuously variable speed change gear on the rear side of the mission case. SOLUTION: In this riding lawn mower, an engine is provided on the front part of a traveling machine body provided with front and rear wheels, the mission case 11 pivotally supporting the rear wheel and the continuously variable speed change gear 15 of a hydraulic type are provided on the rear part of the traveling machine body and the mower is freely vertically movably provided on the intermediate position of the front and rear wheels. The intermediate case 13 for branching and transmitting driving power transmitted from the engine to the continuously variable speed change gear 15 and the mower is provided, the intermediate case 13 is arranged on the front side of the mission case 11 and the continuously variable speed change gear 15 is arranged on the rear side of the mission case 11 respectively. Also, it is preferable to provide output parts 33 and 36 to the continuously variable speed change gear 15 on the upper part of the intermediate case 13.

8. 发明专利

JPH0958285A WORKING VEHICLE 失效
公开(公告)号：JPH0958285A
公开(公告)日：1997-03-04
申请号：JP21146295
申请日：1995-08-21
申请人： KUBOTA KK
发明人： HARADA NOBUYA
IPC分类号： B60K17/10 , F16H57/04 , F16H61/40 , F16H61/4131 , F16H61/4165
摘要： PROBLEM TO BE SOLVED: To supply a charge of low-temperature oil to a hydrostatic continuously variable transmission using a simple and inexpensive structure. SOLUTION: A cooling fan 32 is provided on the top of a hydrostatic continuously variable transmission 30, and a reservoir tank 17 for the hydrostatic continuously variable transmission 30 is placed on the upstream side of the intake passage of the cooling fan 32.

9. 发明专利

JPH0899559A WORK VEHICLE 失效
公开(公告)号：JPH0899559A
公开(公告)日：1996-04-16
申请号：JP23459694
申请日：1994-09-29
申请人： KUBOTA KK
发明人： HAYASHI MASAKI , OGASAWARA HIROYUKI , HARADA NOBUYA , YUKI MIKIO , MINOURA AKIRA , YAMASHITA NOBUYUKI , MURAKAWA MASATAKE , IMANISHI RYOZO , NAGAI HIROKI
IPC分类号： B60N2/90 , B60K28/04 , B60N2/44
摘要： PURPOSE: To allow various operating seats, corresponding to needs such as shape, size or material, to be fitted to a body while reducing cost in a work vehicle in which a seat switch for detecting the sitting state of an operator is provided at the lower part of an operating seat. CONSTITUTION: A seat switch S is fitted to a seat switch fitting member 13 provided at a body, and an operating seat 8 is connected to a seat fitting member 12 disposed rotatably around a horizontal shaft center P, above the seat switch fitting member 13. An elastic body 15 is further provided to lift the seat' fitting member 12 above the seat switch S when the seat is no taken.

10. 发明专利

JPH07264915A APPARATUS FOR LIFTING AND LOWERING LAWN MOWING DEVICE OF LAWN MOWER 失效
公开(公告)号：JPH07264915A
公开(公告)日：1995-10-17
申请号：JP6054194
申请日：1994-03-30
申请人： KUBOTA KK
发明人： HARADA NOBUYA
IPC分类号： A01D34/74
摘要： PURPOSE:To simply lower a lawn-mowing device temporally raised to original reaping height position in a high precision. CONSTITUTION:A raising driving switch Su and a lowering driving switch are provided in the second movable member 15 engaged with an actuator 10 for lifting and lowering of a lawn mowing device 5 and the first movable member 14 engaged with an operating tool 16, respectively and a raising driving switch is constituted so that the switch is turned on by raising operation of the operating tool 16 so as to raise the actuator 10 and the switch is turned off by accompanying displacement of the second movable member 15 interlocked with the raising operation so as to stop the actuator 10, and the lowering driving switch is constituted so that the switch is turned on by lowering operation of the operating tool 16 so as to lower the actuator 10 and the switch is turned off by accompanying dislocation of the second movable member 15 interlocked with the lowering operation so as to stop the actuator 10, and the third movable member 25 capable of setting the position to a constant position to the first movable member 14 by a detent mechanism 31 is provided so as to freely enable dislocation and a lock mechanism 27 for fixing the third movable member 25 at an arbitrary position is provided.

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