• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A system of changing the travelling speed of a working vehicle in which a stepless speed-change means is operated by a pedal. Said system has a cam mechanism by which the pedal may be fixed at the desired position, and a first manual lever for operating this cam mechanism.
    公开号:SU1205753A3
    申请号:SU802912000
    申请日:1980-04-22
    公开日:1986-01-15
    发明作者:Бандо Ниро
    申请人:Кубота Лтд (Фирма)；
    IPC主号:
    专利说明:

    "
    The invention relates to a system for changing the speed of movement of a working machine and, in particular, to a system in which the means for smoothly changing the speed of movement is operated by a pedal.
    The purpose of the invention is to increase the performance certificate.
    FIG. 1 shows a working machine, side view; in fig. 2 is the same side view with partial tears of the main parts shown in FIG. one; in fig. 3 is a section A-A in FIG. 2j in FIG. 4 shows a kinematic diagram of the control system of the first hand lever used in the system for varying the speed of the working machine.
    The working machine contains the front 1 and rear 2 wheels and the steering mechanism 3. The engine is installed in the front of the hull, and the hydrostatic transmission and the transmission are located in the rear. Power from the engine is transmitted to the front and rear wheels 1 and 2 through the means 4 for smoothly changing the speed of movement and transmission. FIG. 1 shows, as an example of a working machine, a tractor that can perform a great deal of work, moving with a mounted machine, such as a soil tillage milling machine, attached to the end of such a tractor.
    In the invention, as a means of 4 smoothly varying the speed of travel, a hydraulic means of smoothly changing the speed of movement with an axial plunger is shown, but also a means of smoothly changing the speed of movement, in which split pulleys are used, can also be used.
    As shown in FIG. 2, the steering mechanism 3 has a pedal 5 as an example of a control device mounted rotatably around a transverse axis; Pedal 5 is attached rotatably to a support shaft 6 to which the first plate member 7 is attached. A means of smoothly varying speed is equipped with a control shaft 8. The element 7 is connected by a rod 9 with a second plate element connected to the shaft 8 of the control of the means 4, smooth from
    057532
    change the speed of movement. Thus, by allowing the rotation of the ped. P. 5, it is possible to smoothly change the speeds of movement.
    ; back and forth. Element 7, pull 9 and item 10 constitute a control unit for varying the speed. Element 10 has a friction surface cam with a concave portion in the center.
     5 Cam 11, interacting with a concave surface, is mounted on the yoke - one-arm lever 12, installed with the possibility of rotation around the transverse axis.
     1-5 A spring is attached to the rocker arm 12, which is operated on a tension 13, which serves to press the cam in a normal state against a concave surface. Thanks to this tool 4
    20, the smooth movement speed changes automatically to its neutral position when it is activated against the action of the spring 13 and then the operator removes
    2; the foot from the pedal 5, the spring 13, the element 10, the cam 11 and the rocker arm 12 constitute the spring means serving to keep the means 4 of smoothly changing the speed of movement in
    30 neutral position.
    Parallel to the supporting shaft of the pedal 6 and above it is a supporting shaft 14 which, with the possibility of rotation, is a corner lever arm.
    t; element 15. Shaft 14 is located in
    the center of the element 15. t
    As shown in FIG. 3, one end of the telescopic rod 16 is attached to the element 7, and the other end of the SO is attached to the element 15 so that the rod 16 passes through the element 15.
    The second hand lever 17, which serves as a means for setting the maximum speed, has a sector 5th element 18 and is located on one side relative to element 15. The lever 17 is mounted on the support shaft 14 and can be rotated around it
    50
    when entering into engagement with hooks, jn1, by 1 part 19, formed 1 and in the guide panel 20,
    The first hand lever 21, which serves as a means for setting a minimum speed and a means for setting a constant speed, including low speed and high speed, is pivotally attached to a support shaft parallel to the shaft 14. The lever 21 is connected to the contact element 22 designed to interact with the free end of the element 15, opposite to its end, attached to the barrel 16. The lever 21 can be fixed by friction engaging means 23, located between the panel 20 and the lever 21.
    The element 15 and the contact element 22 form a cam means which allows the pedal 5 to operate the means 4 for smoothly varying the speed of movement in the direction of increasing forward speed of movement and prevents the means for smoothly changing the speed of movement to act in the direction of its neutral position.
    The lever 21 returns to the neutral position when braking, when the element 15 is acted upon by force, exceeding the action of the spring 13, seeking to return the means 4 to smoothly change the speed of movement to the neutral position, regardless of the position in which the lever is set,
    In the sector element 17, a slot 24 is made in the form of an arc of a circle with a center on the axis of rotation of the element 17. A portion of 25 tons 16 protruding from the element 15 enters the slot 24. Such contact of the protruding part 25 with the lower end of the slot 24 prevents movement of the part 25 t gi This means that such a contact prevents the pedal from being pressed in the direction of increasing forward speed, thereby setting the maximum speed. This maximum speed can be changed by changing the position in which the second hand lever 18 is fixed.
    When the device is in operation, the contact of the element 15 with the element 21 prevents the pedal 5 from returning to the neutral position from a position in which it is controlled to move forward and maintain it in a predetermined position, thereby
    205753
    be set to minimum speed. This minimum speed can be changed by the position in which the first manual is fixed.
    5 lever 21.
    By changing the fixed positions of the hand levers 18 and 21, the desired range of speed changes can be selected, including
    10 in which the pedal 5 can be driven in both directions back and forth to the maximum degree determined by the initial setting, the mode in which
    15, it is prevented that the pedal 5 is returned to the neutral position N after the operator’s foot is removed from the pedal and the speed can be changed only or in
    20 to the front side F or to the rear side B, and the mode in which the change in speed can only take place within a predetermined range on. high speed adjustment
    25 or the low speed adjustment side in the indicated mode of changing the forward speed.
    In addition, when actuating only the first hand lever
    2Q 21 with an open connection between the second hand lever 18 and the first hand lever 21, the latter can be used as a means of setting a constant speed, whereby the means 4 of smoothly changing the speed of movement can be set to the desired speed and this desired speed can be maintained even at removing the operator’s feet from the pedal 5.
    In the proposed system, the pedal 5 can be pushed in the direction of increasing the speed, as shown in FIG. 4 This makes it possible to increase, if necessary, the speed of the vehicle at the desired constant speed and then automatically reset the speed at an increased speed to the initial constant speed when the operator’s foot 5 is removed from the pedal 5, thereby increasing the efficiency of the machine.
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    Editor A.Dolinich
    Compiled by A. Barykov Tehred 3, Paly
    8549/61 Circulation 648 Subscription
    VNIIPI USSR State Committee
    for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5
    Branch PPP Patent, Uzhgorod, st. Project, 4
    Proofreader M. Maksimishine
    权利要求:
    Claims (1)
    [1]
    A WORKING MACHINE SPEED CHANGE DEVICE, comprising a speed change control unit attached to a hydrostatic transmission, a control shaft of which is kinematically connected to a pedal made in the form of a first two-shoulder lever, movably mounted on an axis, spring means connected to the speed change unit, second two-shouldered a lever, one of the arms of which is kinematically connected with a speed change control unit by means of a connecting element, a control lever with a contact element made with the possibility of interacting with the second two-arm lever, characterized in that, in order to increase convenience in control, the speed change control unit is provided with two plate elements and a rod, while the plate elements are made in the form of a third and fourth two-arm levers, which are respectively located on the control shaft control unit change, speed and axis of the first two shoulders of the lever, the first shoulders of the third and fourth two shoulders of the levers are interconnected by a rod, the second shoulder of the fourth two shoulders of the lever is connected to the end of the connecting element, the spring means is provided with a one-arm lever, one end of which is mounted movably on the axis, and the other is connected to a spring and a cam located on the one-arm lever, the second shoulder of the third two-shouldered lever is made with a curved surface having a concave part in the center placed with the possibility of interaction with the cam, the control lever is equipped with a spring locking element, and the contact element of the control lever is made in the form of a cam with the possibility of interaction with the other shoulder of the second two-shouldered lever 'and is placed on the side of the second two-shouldered lever, into which it moves with decreasing ’the speed of the machine, while the latter is mounted on the axis of the working machine.
    SU .... 1205753 ΐ
    类似技术:
    公开号 | 公开日 | 专利标题
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    同族专利:
    公开号 | 公开日
    BE882928A|1980-08-18|
    JPS5659427U|1981-05-21|
    FR2467098B1|1984-02-03|
    IT8021344D0|1980-04-11|
    DE3015073C2|1986-10-23|
    FR2467098A1|1981-04-17|
    IT1141568B|1986-10-01|
    GB2060835A|1981-05-07|
    CA1139193A|1983-01-11|
    GB2060835B|1983-09-14|
    US4341129A|1982-07-27|
    DE3015073A1|1981-04-30|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FR765309A|1933-12-08|1934-06-08|Control device for vehicles|
    US2072285A|1935-12-12|1937-03-02|Harry M Walker|Throttle controlling attachment for motor cars|
    GB928423A|1960-01-26|1963-06-12|Lucas Industries Ltd|Vehicle transmission systems|
    US3316773A|1964-02-14|1967-05-02|Int Harvester Co|Reversible pump control linkage|
    US3525266A|1968-04-08|1970-08-25|Eaton Yale & Towne|Control for a hydrostatic transmission|
    US3511105A|1968-07-02|1970-05-12|Deere & Co|Hydrostatic transmission drive pump swash plate control|
    US3837235A|1973-02-12|1974-09-24|Massey Ferguson Inc|Hydrostatic transmission control|
    US4059025A|1976-06-21|1977-11-22|Massey-Ferguson Inc.|Speed control|
    JPS5316109U|1976-07-22|1978-02-10|US4462268A|1982-02-25|1984-07-31|Colt Industries Operating Corp.|Anti-twist throttle lever|
    FR2547666B1|1983-06-16|1986-03-14|Davanture Robert|IMPROVEMENT ON MANUAL CONTROLS OF AUTOMOTIVE MACHINERY|
    JPS60184729U|1984-05-18|1985-12-07|
    US4883137A|1986-08-27|1989-11-28|Deere & Company|System and method for controlling the ground speed and enhancing the maneuverability of an off-road vehicle|
    US4759417A|1986-08-27|1988-07-26|Deere & Company|System and method for controlling the ground speed and enhancing the maneuverability of an off-road vehicle|
    US5022477A|1986-08-27|1991-06-11|Deere & Company|System and method for controlling the ground speed and enhancing the maneuverability of an off-road vehicle|
    JPH0235269A|1988-07-21|1990-02-05|Yamaha Motor Co Ltd|Shift device of hydraulic transmission|
    US5048638A|1988-09-17|1991-09-17|Deere & Company|System for controlling the ground speed and direction of travel of an off-road vehicle|
    DE3832501A1|1988-09-24|1990-03-29|Wabco Westinghouse Steuerung|CONTROL DEVICE, ESPECIALLY TO CONTROL THE ENGINE, COUPLING AND TRANSMISSION OF SHIPS|
    US4958535A|1989-03-15|1990-09-25|Deere & Company|Transmission control structure including a combination direction and cruise control and a brake interlock|
    US5211070A|1991-06-13|1993-05-18|Kubota Corporation|Speed control system for a vehicle having a braking device and a stepless transmission|
    JPH04368231A|1991-06-14|1992-12-21|Kubota Corp|Forward/backward movement gear shift operation structure for working vehicle|
    JP2648262B2|1991-12-10|1997-08-27|株式会社クボタ|Shifting structure of work vehicle|
    US6250414B1|1997-09-18|2001-06-26|Kubota Corporation|Working vehicle|
    JP3506967B2|1999-09-16|2004-03-15|株式会社クボタ|Working gear shifting structure|
    US6722464B2|2001-03-29|2004-04-20|Kubota Corporation|Working vehicle|
    US7168519B2|2003-04-10|2007-01-30|Delta Systems, Inc.|Switch mounting assembly|
    JP4362426B2|2004-09-15|2009-11-11|株式会社クボタ|Work vehicle transmission structure|
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    JP4866307B2|2007-06-29|2012-02-01|株式会社クボタ|Work vehicle|
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    CN103899421B|2014-04-18|2016-04-06|中国重汽集团济南动力有限公司|A kind of diesel engine manual accelerator control control gear|
    US20190128403A1|2017-11-01|2019-05-02|Dura Operating, Llc|Shift lever assembly with angled actuator|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    JP1979141687U|JPS5659427U|1979-10-13|1979-10-13|
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