• 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:
    1535539 Tractor hitches JEAN WALTERSCHEID GmbH 5 Oct 1976 [8 Oct 1975] 41240/76 Heading A1P [Also in Division E2] A liner 25 is held in the jaw of a hook and permitted some, restricted movement. Spring 23 biases the liner 25 to pivot about one end, the other end engaging a stop-face in a sprung mousing piece 5. Loading the liner 25 depresses it to release the mousing piece which traps the load in the hook. The hook is intended for attachment to a tractor in which case the load will be the coupling member of a machine, trailer &c. to be attached.
    公开号:SU728698A3
    申请号:SU762406154
    申请日:1976-09-30
    公开日:1980-04-15
    发明作者:Фон Альверден Вильхельм
    申请人:Жан Валтершайд Гмбх (Фирма)；
    IPC主号:
    专利说明:

    This invention relates to coupling devices designed primarily for the upper drawbar of a mounted device of agricultural tractors coupled to a trailed working body. A coupling device is known, which contains a coupling hook, in the spherical bowls of which are installed with the possibility of limited rotation. 1Bar sections, made with longitudinal slots for radial insertion of the coupling tool of the working tool, and a spring-loaded stopper 1. The disadvantage of this design is that the upper drawbar It must always be installed exactly at the distance required for attaching the working tool, so that the opening of the coupling hook on the upper drawbar and coupling pin on the mounted implement are exactly opposite to each other. . Only then can the coupling hook, overcoming the force of its locking spring, be put on the coupling pin of the gun, after which the stopper retracts above the coupling pin. The tractor driver is required to maneuver the tractor in order to bring the hook into the correct position. If, however, the longitudinal installation of the upper drawbar did not work out exactly, then in order to put the hook on the coupling pin, you must raise the upper drawbar and then let it fall onto the coupling pin of the mounted tool. At the same time, due to the weight of the upper drawbar and due to the remoteness of the driver's seat from the hitch point, it is difficult to control the upper drawbar. In addition, the tractor driver from his seat can hardly see whether the hook was above the coupling pin. Another coupling device is known, which contains a hook, in the throat of which the ball section is mounted with limited rotation with the opening for locking the coupling pin, the hook having a spring-loaded stopper 2. This device is closest to the invention by its technical essence and the achieved result. Such a hitch is not reliable enough and has. difficult process of locking the coupling pin.
    The purpose of the invention is to improve the reliability of the device and facilitate locking the coupling pin,
    The center of this device is equipped with an additional spring placed in the body of the hook, which adjoins at one end to the ball section, while the upper part of the stopper is made stepped to interact with the end of the pressure section "
    Fig, 1 shows a hitch, section; in fig. 2 - the same, top view; in fig. 3 - the same in the locked position; Fig. 4,5, b are variants of the ball section with a shed for locking the draw hook.
    The hitch contains a hook with a restrictive plate 2 and an emphasis 3. In the throat 4 of the hook 1, the ball section 5 is installed, opened from above by the slot 6 for the entrance of the hitch pin 7, In the throat 4 of the hook there is a blind hole 8 under the spring 9 and a spring cup 10 with a guide a pin 11, which abut against the ball section 5 and the hook 1. On both outer sides the ball section 5 has an edge 12 for
    turning movement restrictions. On the side opposite to the stop 3 on the ball section 5, an oblique cut is made towards the stopper 13, forming a stop 14 for the stopper. When hook 1
    open, the stop 14 is adjacent to the trap 15 and to the thrust surface 16 of the stopper 13. When the hook is closed, the stop 14 of the ball section 5 and the stopping surface 17 of the stopper 13 are adjacent to one another. In the opening 18, a stopper 13 is moved, in which there is an opening 19 with threading under the tightening screw 20. A locking spring 21 is put on the tightening screw 20, and this. the spring rests on the counter support 22 and on the support 29 of the spring 21, Hook 1 has on its upper side, towards the shed 4, a sliding surface 24. The hook 1 and the upper tongue 25 are welded to each other. The end of the tightening screw 20 protruding from the hook is connected through the lock nut 26, the adapter 27 and the arm 28 with the clamping ring 29.
    "For hanging three-point
    The tractor driver first hitch the tractor mounted tool backwards to the mounted gun, and then hooks the two lower drawbars of the gun with hooks to the lower arms. After that, the tractor driver pulls the breather 25 at full length and puts it with the hook hook 1 on top of the upper hitch pin 7 of the mounted gun, at the same time, shortens the upper drawbar 25
    so that the sliding surface of the hook 1 is located on the hitch pin 7- "With this, it lifts the attachment tool slowly behind the drawbar and tilts it backwards. The coupling pin 7 slides along the sliding surface 24 into the slit 6 of the ball section 5 of the hook 1. At the same time, edge 12 is of the ball section 5 allows lateral rotation of the ball sekgdiya 5 in the throat 4 of the hook 1 in a limited segment that corresponds to practically working. M Treadings10 with a guide pin 11, and the ball section 5 extends completely into the shed 4. At the same time, the stop 14 for the stopper on the ball section 5, which is adjacent to the trap 15 and to the stop surface of the stopper 13, is pulled by the ball section 5, which turns on the stop 3 of the restrictor tile 2f from the stopper 13, which is released. The locking spring 21 pulls the stopper 13 onto the coupling pin 7, the I-tractor operator locks the coupling hook 1 from his seat, and the tractor maneuvers and the work with hydraulics.
    To uncouple the tractor driver, in his seat, there is no handle 28 and thus moves the stopper 13 through adapter 27 and tightening screw 20 prot in pressing the locking spring 21 from the coupling pin 7 to the position.
    When lifting the upper .fish 25, the ball section 5 releases the coupling pin 1 .. The spring 9 between the coupling hook 1 and the ball section 5 comes into action. At the same time, the spring cup 10 presses the ball section 5, which rests against the stop 3 of the restrictive plate 2 of the hook 1 and rotates: with the other side toward the stopper 13, the stop 14 for the stopper lies against the surface of the stop 16 and is fixed by the trap 15 of the stopper . The upper drawbar 25 moves to a resting position, and the handle 28 is released. Now the coupling krkk 1 is in the position .dl of the next coupling process. After the tractor driver Qj and the style of the lower hitch pins of the mounted Oruc, for which he lowered and oastoporil the lower hitch hooks, oboches «jpy.ujie unhooked,
    CFG / la invention
    g; flail; g1 device containing the gauge: - ::, E shed ;; which is installed with the possibility of rotational rotation o5) a ball section with an aei for locking the coupling pin, and the hook has a spring-loaded stopper, so that, with the aim of improving the reliability of the device and facilitating the locking of the coupling pin It is provided with an additional spring placed in the body of the hook, which is adjoined at one end to the ball section of the gphi. This upper end of the stopper is stepwise to interact with the end of the ball section.
    Sources of information taken into account in the examination
    1. The patent of Germany No. 1246300, cl. 45 A, 59/04, 1966.
    2. The patent of France, 1273485, cl. In 62 D, 1960 (prototype).
    Fug
    Ul.lf .25
    FIG. five
    权利要求:
    Claims (1)
    [1]
    Claim
    A coupling device comprising a hook, in the throat of which a ball section with a throat for locking the coupling pin is mounted with the possibility of limited rotation, the hook has a spring-loaded stopper, so that in order to increase the reliability of the device and facilitating the locking of the coupling pin, it is equipped with an additional spring located in the hook body adjacent one end to the ball section, while the upper part of the stopper is made stepwise to interact with the end of the ball section.
    类似技术:
    公开号 | 公开日 | 专利标题
    SU728698A3|1980-04-15|Engaging device
    US5050684A|1991-09-24|Coupling hook
    CA1248154A|1989-01-03|Trailer hitch
    US4071263A|1978-01-31|Coupling hook for a three-point connection on a tractor
    US4241935A|1980-12-30|Coupling hook structure for tractor hitch system
    US5441117A|1995-08-15|Coupling hook for the lower steering arms of a three-point attaching device of a tractor
    US4014562A|1977-03-29|Coupling hook for a three-point connection on a tractor
    EP0063553A1|1982-10-27|Arrangement for coupling an implement to a tractor
    US5427399A|1995-06-27|Tractor hitch with lock
    US4366967A|1983-01-04|Coupling hook assembly
    US4840528A|1989-06-20|Locking hitch pin assembly
    US4398745A|1983-08-16|Three point hitch lower link claw
    US2784985A|1957-03-12|Retractable support for trailer tongues
    US3542399A|1970-11-24|Tractor implement hitch
    US5033764A|1991-07-23|Locking trailer coupling
    US4418936A|1983-12-06|Tow bar head for aircraft
    GB2429195A|2007-02-21|A drawbar
    US4108464A|1978-08-22|Coupling hook for a three-point attachment of a tractor
    GB1574386A|1980-09-03|Coupling hook
    US3292949A|1966-12-20|Locking mechanisms for hitches
    US2835510A|1958-05-20|Draw bar hitches
    US2723866A|1955-11-15|Ball and socket type hitch
    US2685456A|1954-08-03|Hitching attachment for tractors
    US4793626A|1988-12-27|Trailer hitch
    US2475761A|1949-07-12|Trailer hitch
    同族专利:
    公开号 | 公开日
    CA1050330A|1979-03-13|
    IT1070108B|1985-03-25|
    JPS5417644B2|1979-07-02|
    DE2545040B1|1977-02-10|
    AU497565B2|1978-12-14|
    CS185598B2|1978-10-31|
    JPS5247407A|1977-04-15|
    FR2326850B1|1979-09-28|
    FR2326850A1|1977-05-06|
    US4050715A|1977-09-27|
    AU1757576A|1978-03-16|
    SE7610153L|1977-04-09|
    SE404480B|1978-10-09|
    ES450748A1|1977-09-01|
    ATA439676A|1977-12-15|
    BR7606139A|1977-06-21|
    HU175195B|1980-05-28|
    GB1535539A|1978-12-13|
    PL112507B1|1980-10-31|
    DE2545040C2|1977-09-22|
    AT345106B|1978-08-25|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3361447A|1965-12-20|1968-01-02|Case Co J I|Claw latch for three-point hitch|
    US3539203A|1969-04-04|1970-11-10|Allis Chalmers Mfg Co|Draft hook latch|
    AT338021B|1975-03-11|1977-07-25|Walterscheid Gmbh Jean|COUPLING HOOK, IN PARTICULAR FOR A THREE POINT LINKAGE OF A TRACTOR|US4398745A|1981-06-01|1983-08-16|International Harvester Co.|Three point hitch lower link claw|
    US4449686A|1982-05-17|1984-05-22|Darling Store Fixtures|Display fixture mounting bracket|
    JPS5989649U|1982-12-04|1984-06-18|
    ITBO20020616A1|2002-09-30|2004-04-01|Cbm Spa|REFINEMENTS IN A UPPER HOOK FOR A THREE-POINT ATTACHMENT.|
    US7364181B2|2005-10-11|2008-04-29|Macdon Industries Ltd.|Self locking coupling device|
    RU2527634C1|2013-05-07|2014-09-10|Открытое акционерное общество "Уральское конструкторское бюро транспортного машиностроения"|Emergency uncoupler|
    US9736976B2|2014-11-07|2017-08-22|Agco Corporation|Windrower with quick header attachment|
    US9795084B2|2014-12-12|2017-10-24|AGCO do Brasil|Attachment system for a harvester header|
    KR101650129B1|2015-03-13|2016-08-22|주식회사 에버다임|Crusher|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE19752545040|DE2545040C2|1975-10-08|1975-10-08|Coupling hook, especially for the top link of a linkage of a farm tractor|
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