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11. 发明专利

JPH01108449A TRANSMISSION STRUCTURE FOR WORKING VEHICLE TRAVELLING 失效
公开(公告)号：JPH01108449A
公开(公告)日：1989-04-25
申请号：JP26475087
申请日：1987-10-20
申请人： KUBOTA LTD
发明人： FUKUI SATORU
IPC分类号： F16H63/08 , F16H61/30 , F16H63/00 , F16H63/02 , F16H63/24 , F16H63/30
摘要： PURPOSE:To simplify the manipulation of speed change and to smooth the change-over of shift gears by providing a gear shift valve, clutch mechanisms and coupling mechanisms for hydraulic cylinders. CONSTITUTION:Hydraulic cylinders 16, 18, 20, 22 change over shift gears in association with the change-over of a gear shift valve 24 to shift a speed change section into a predetermined stage speed condition while a hydraulic piston 37 is automatically operated by a clutch control mechanism 49 so as to engage and disengage a speed change clutch C2. Upon change-over of a speed change section on the side remote from the speed change clutch C2, a speed change section near to the speed change clutch C2 is temporarily shifted by coupling mechanisms 31, 32. Accordingly, rotational inertia of a mission constituting member located between the remote change over section and the speed change gear C2 is restrained form being transmitted to the speed change section so as to facilitate the synchronized rotations of a shaft gear and a gear to be meshed therewith. Accordingly, it is possible to smooth the change-over of shift gears.

12. 发明专利

JPS6341002B2 失效
公开(公告)号：JPS6341002B2
公开(公告)日：1988-08-15
申请号：JP12597482
申请日：1982-07-20
申请人： KUBOTA LTD
发明人： FUKUI SATORU
IPC分类号： G01B11/00 , G01B11/02 , G01C15/00 , G01S5/16

13. 发明专利

JPS6338579B2 失效
公开(公告)号：JPS6338579B2
公开(公告)日：1988-08-01
申请号：JP21352682
申请日：1982-12-06
申请人： KUBOTA LTD
发明人： FUKUI SATORU
IPC分类号： F16H63/00 , F16H61/12 , F16H63/02 , F16H63/24 , F16H63/32 , F16H63/46

14. 发明专利

JPS6252255A PRESSURE CONTROL MECHANISM 失效
公开(公告)号：JPS6252255A
公开(公告)日：1987-03-06
申请号：JP19052885
申请日：1985-08-29
申请人： KUBOTA LTD , KUBOTA SEIKI KK
发明人： MACHIDA MASARU , HASEGAWA SHIGEKAZU , OOTA YOSHIMI , FUKUI SATORU , HATTORI AKIO
IPC分类号： F16H61/06 , F16H59/02 , F16H61/08 , F16H61/10
摘要： PURPOSE:To reduce a shock by a clutch in its engaging control, by providing two valve mechanisms, throttle valve and an accumulator to be rationally arranged and setting the pressure for actuating the two value mechanisms. CONSTITUTION:A pressure control mechanism, providing the first valve mechanism 21 switched to a blocking condition if a pilot pressure from the side of an oil hydraulic clutch reaches a predetermined value or more, the second valve mechanism 22 switched to a communicating conditions, when the above described condition is obtained, and a throttle valve 20 parallelly in an oil line 19 for supplying working fluid, connects an accumulator 26 with a confluent oil line of these value mechanisms 21, 22 and throttle valve 20. In this way, the pressure control mechanism, in which the so-called half-clutch condition, generated when the oil hydraulic clutch is controlled to be engaged, can be maintained for a relatively long time by a gentle rise of control pressure, can relax a shock by the clutch when it is engaged.

15. 发明专利

JPS616028A CONTROL CIRCUIT FOR HYDRAULIC CLUTCH FOR RUNNING SPEED SHIFT 失效
公开(公告)号：JPS616028A
公开(公告)日：1986-01-11
申请号：JP12687084
申请日：1984-06-20
申请人： KUBOTA LTD
发明人： FUKUI SATORU
IPC分类号： B60W10/02 , B60W10/10 , F16D48/02
摘要： PURPOSE:To make a loss time short, by disposing, in parallel, a valve which closes when a secondary pressure exceeds a set value, a valve which opens when the secondary pressure is below the set value and an orifice between a hydraulic pump and a speed shift hydraulic clutch. CONSTITUTION:A valve 18 which closes when a secondary pressure exceeds a set value P1, a valve 19 which opens when the secondary pressure is at a set value P2 higher than the above-mentioned set value P1 and an orifice 20 are connected in parallel together between a pump P and a speed shift hydraulic clutch C in a passage upstream of clutch operation control valves T1 through T4. Accordingly, the valve 18 opens when the secondary pressure is below the set value P1 to boost up the pressure up to the initial operating pressure of the hydraulic clutch C in a short time. Both valves 18, 19 close when the secondary pressure is between both set pressures P1, P2, and therefore the pressure is gradually raised by means of the orifice 20 to offer a smooth clutch operating characteristic. Further, when the secondary pressure exceeds the set value P2, the valve 19 opens to rapidly boost up the pressure up to the set pressure value of a valve 15 to give the normal clutch transmission condition.

16. 发明专利

JPS6076475A CONTROL ARRANGEMENT FOR AGRICULTURAL TRACTOR 失效
公开(公告)号：JPS6076475A
公开(公告)日：1985-04-30
申请号：JP18570583
申请日：1983-10-03
申请人： KUBOTA LTD
发明人： OKITA NAOKI , FUKUI SATORU
IPC分类号： A01B69/00 , B60K17/34 , B60K17/348 , B60K23/08 , B62D11/06
摘要： PURPOSE:To make it possible to drive front wheels even if a failure in an electrical system occures, by providing a solenoid valve which may selectively change over a control section between an accelerating transmitting position and a transmission stopping position. CONSTITUTION:By means of a branch transmission system having a speed change gear 10 which may be changed over among a condition in which an output from a counter speed change gear is transmitted for acceleration, a condition in which the output is transmitted for running at a uniform or substantially uniform speed, and a condition in which the transmission is stopped, the output from the counter speed change gear 8 is transmitted speed-changeably and stoppingably to a front wheel differential gear mechanism 11. Both left and right front wheels 1a, 1b are arranged such that the operation of the front wheels 1a, 1b may be made changed over among an accelerating drive condition in which the averaged speed of both front wheels 1a, 1b is higher than the averaged speed of both left and right rear wheels 2a, 2b, a uniform speed drive condition in which the averaged spees of the front and rear wheels 1a, 1b, 2a, 2b are equal or substantially equal together and an idle condition.

17. 发明专利

JPS59176117A 4-wheel-drive type tractor 失效
标题翻译： 4轮驱动式拖拉机
公开(公告)号：JPS59176117A
公开(公告)日：1984-10-05
申请号：JP4770583
申请日：1983-03-22
申请人： Kubota Ltd
发明人： FUKUI SATORU , SENOO TOKIJIROU
IPC分类号： B60K17/348 , B62D15/00
CPC分类号： B60K17/348 , B62D15/00
摘要： PURPOSE:To increase the speed of the front wheels according to a turning angle in a tractor that proportionally increases the speed of the front wheels along with the increase of the front wheel turning angle and to reduce turning radius without making a driver feel uneasy by changing a power take-off mechanism for the front wheel drive into a non-stepping speed change. CONSTITUTION:An engine driving power synchronously drives respectively the rear wheels 5 through a gear transmission mechanism 12 and a differential mechanism 14 and the front wheels through a power take-off mechanism 15. On the other hand, the front wheels 4 are turned by a steering handle, a pulley 19 is slided on a power take-off axis 20 and is shifted along with the increase of the front wheel turning angle. Consequently, the speed of the front wheels is proportionally increased slowly along with the increase of the front wheel turning angle. As a result, the speed of the front wheels is increased according to the turning angle and the turning radius can be reduced without making a driver feel uneasy.
摘要翻译：目的：根据拖拉机的转向角度，提高前轮的转速，同时随着前轮转向角度的增加，前轮的转速也会相应地增加，并减少转弯半径，而不会让驾驶员因为改变而变得不舒服用于前轮驱动的动力输出机构进入非步进速度变化。构成：发动机驱动动力分别通过齿轮传动机构12和差动机构14以及前轮通过动力输出机构15分别驱动后轮5.另一方面，前轮4由转向手柄，带轮19在动力输出轴20上滑动，并随着前轮转向角度的增加而移动。因此，随着前轮转向角度的增加，前轮的速度成比例地缓慢地增加。结果，前轮的速度根据转动角度而增加，并且可以减小转弯半径，而不会使驾驶员感到不舒服。

18. 发明专利

JPS5917103A Position detector of moving body 失效
标题翻译：移动体的位置检测器
公开(公告)号：JPS5917103A
公开(公告)日：1984-01-28
申请号：JP12597482
申请日：1982-07-20
申请人： Kubota Ltd
发明人： FUKUI SATORU
IPC分类号： G01B11/00 , G01B11/02 , G01C15/00 , G01S5/16
CPC分类号： G01B11/002 , G01S5/16
摘要： PURPOSE:To enable the detection of the position of a moving body merely by installing simple marks by placing freely turnably cameras on the body of the moving body, and providing means for extracting the characteristics of the images of the marks provided at the fix point picked up by said cameras. CONSTITUTION:Marks A1, A2, A3 are provided respectively on the three points on the ground, and the respective marks A1, A2, A3 are detected respectively by three units of television cameras TV1, TV2, TV3 rotating at the same point P of a machine body V, thereby calculating the position of the body with the difference of faced angles of TV1, TV2, TV3 at this time. The position of the moving body is detected merely by installing the simple marks as auxiliary devices to be provided on the ground according to the above-mentiond method.
摘要翻译：目的：仅通过在移动体的主体上放置可自由转动的相机来安装简单的标记，从而能够检测移动体的位置，并提供用于提取设置在所选择的固定点处的标记的图像的特征的装置由相机拍摄。构成：分别在地面上的三个点上分别提供标记A1，A2，A3，并且分别通过在同一点P上旋转的三个单元的电视摄像机TV1，TV2，TV3检测相应的标记A1，A2，A3 此时，由TV1，TV2，TV3的面角度的差异来计算身体的位置。根据上述方法，仅通过将简单标记作为辅助装置安装在地面上来检测移动体的位置。

19. 发明专利

JPH02245527A TRANSMISSION GEAR 失效
公开(公告)号：JPH02245527A
公开(公告)日：1990-10-01
申请号：JP6470189
申请日：1989-03-15
申请人： KUBOTA LTD
发明人： FUKUI SATORU , OTA YOSHIMI
IPC分类号： B60T7/12 , F16D59/00 , F16D67/02
摘要： PURPOSE:To transmit power without power loss at the time of normal running, and to suppress acceleration to be generated by an external factor smoothly by connecting two shafts arranged on the core of common shaft together through a linking mechanism that allows change of rotational phase within a certain area. CONSTITUTION:A first 4 and a second shaft 5 are connected together through a linking mechanism B formed so as to permit change of rotational phase within a certain area. The linking mechanism B is composed of a driving cam body 6 spline-fitted to the first shaft 4, and an inverted cam member 7 spline- fitted to the second shaft. Only within the area where it abuts on a stopper piece 6b connected with a concave surface 6a of the driving cam body 6, movement in a circumferential direction or along the rotation of a projection 7a on the side of the cam member 7 is permitted. By the movement, the cam member 7 can slide along each core of the first and the second shafts 4, 5.

20. 发明专利

JPH02176244A TRANSMISSION GEAR 失效
公开(公告)号：JPH02176244A
公开(公告)日：1990-07-09
申请号：JP33367688
申请日：1988-12-28
申请人： KUBOTA LTD
发明人： FUKUI SATORU
IPC分类号： F16H37/02
摘要： PURPOSE:To restrain acceleration without force which is caused by external conditions by transmitting motive power from a first shaft to a worm gear by means of a first transmission mechanism and providing a second transmission mechanism for transmitting rotation with the same velocity as that of a wheel gear which is achieved by the first shaft, while linking the second mechanism with a second shaft. CONSTITUTION:A first shaft 4 for transmitting motive power and a second shaft 5 for transmitting motive power are connected together by an one-way clutch type transmission connecting mechanism 6 while in such a state that variations in the phase of rotation are permitted, and a first transmission mechanism B is comprised of a third shaft 8 which connects with the power connecting mechanism 6 via a gear 7. Also, a second transmission mechanism C is comprised of a gear 11, a fourth shaft 12 and a second worm gear 13 so that rotary power with the same velocity as that of rotation of the wheel gear 10 is transmitted thereto, rotation of the wheel gear 10 being achieved by motive power transmitted from a first worm gear 9 provided in the third shaft 8, a wheel gear 10 which engages with the worm gear 9, and the first shaft 4. In the event that acceleration is caused by external conditions, the acceleration can, thus be controlled without force.

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