US3637098A - Agricultural vehicle with lift-body capability and the like - Google Patents

Agricultural vehicle with lift-body capability and the like Download PDF

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Publication number
US3637098A
US3637098A US6448A US3637098DA US3637098A US 3637098 A US3637098 A US 3637098A US 6448 A US6448 A US 6448A US 3637098D A US3637098D A US 3637098DA US 3637098 A US3637098 A US 3637098A
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US
United States
Prior art keywords
beams
vehicle
linkage
frame
load
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US6448A
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English (en)
Inventor
Ernst Wagenblast
Heinz Hohlwegler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Maschinenfabrik Fahr AG
Original Assignee
Maschinenfabrik Fahr AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE19691905164 external-priority patent/DE1905164C3/de
Application filed by Maschinenfabrik Fahr AG filed Critical Maschinenfabrik Fahr AG
Application granted granted Critical
Publication of US3637098A publication Critical patent/US3637098A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
    • B60P1/00—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading
    • B60P1/04—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading with a tipping movement of load-transporting element
    • B60P1/28—Tipping body constructions
    • B60P1/283—Elements of tipping devices

Definitions

  • An agricultural vehicle with a fork-shaped frame is provided with a lifting linkage and tilting beams carrying the linkage.
  • the linkage may be used for raising a container from the ground and lowering it again.
  • Hydraulic cylinders are provided which serve both to move the container upwards and, alternatively, to tilt the container.
  • catch means are provided between the linkage and the beams in order to prevent relative movement between them. The operation of the catch means depends upon the movement sequence performed by the hydraulic cylinders.
  • the linkage can be in the form of two pairs of crossing links arranged between two pairs of upper and lower generally horizontal beams. In the case of such a vehicle it is often necessary to lock the lifting linkage at a certain height. The tipping of the container or load can then be carried out.
  • One object of the present invention is to provide a locking mechanism or catch for such a vehicle which is automatically locked and unlocked for fixing and releasing the lifting linkage.
  • the present invention resides in a vehicle comprising a frame, parallel longitudinal beams pivoted on the frame, a load-support linkage carried on the beams, drive means connected with the frame and the linkage, two links which form part of the linkage on opposite sides of the vehicle, having lower ends connected with the beams for relative translatory movement, and catch means arranged to be set by, and to check or allow such relative translatory movement for causing the hydraulic drive means either to tip the load by tilting the beams about a transverse axis or to actuate the linkage to raise the load while the beams remain angularly fixed in relation to the frame.
  • the catch includes pivoting latches arranged on the two lower link ends mentioned, and latch pins, arranged on adjacent parts of the beams, and adapted to fit into recesses in the respective latches.
  • the latches can be provided with pivoting springloaded wards for blocking access to the recesses.
  • the arrangement further includes detent means for locking the beams in relation to the frame, and actuating pins for releasing the detents, the wards being arranged to pivot on contacting the latch pins and the actuating pins.
  • a toggle catch can be provided which is connected by a spring with the respective ward and can be arranged to be cocked by the ward and to hold it in three positions in which, respectively, it completely blocks off the associated recess in the latch, leaves it partially open, and leaves it completely open.
  • Each ward can be provided with a ramp face arranged to contact the actuating pin and the catch pin for movement of the ward into a position in which it uncovers the recess in the adjacent latch.
  • Ends of the beams can be pivoted on the frame for tilting of the load and the beams can carry parts of the detent in the form of studs, the frame comprising hooks arranged to cooperate with the studs.
  • the beams can also be provided with spring-loaded plates which are mounted on them for longitudinal sliding movement to press the studs into the hooks.
  • the plates can be provided with slots in which the adjacent actuating pins are fitted.
  • the latches can be provided with spring means tending to pivot them in relation to the lower ends of the links mentioned for holding the latches against rails in slotted parts of the beams.
  • the linkage comprises two pairs of intersecting links arranged on opposite sides of the vehicle.
  • FIG. I is a perspective view of the vehicle with a container in the transport position.
  • FIG. 2 is a perspective view of the vehicle in accordance with FIG. 1 with the container in the tipped or dumping posi- U011.
  • FIG. 3 is a side view drawn to an enlarged scale of the locking mechanism for the intersecting links of the linkage during lifting shortly before the transport position of the container is reached.
  • FIGS. 4, 5 and 6 are sections on the lines IV-IV, V-V and Vl-VI of FIG. 3 respectively.
  • FIG. 7 is a side view of the locking mechanism, corresponding to FIG. 3, but showing the orientation of the parts on reaching the transport position.
  • FIG. 8 is a side view of the locking mechanism similar to FIG. 3, showing the container in the transport position, the hydraulic drive having been turned off.
  • FIG. 9 is a section on the line IX-IX of FIG. 8.
  • FIG. 10 shows the locking mechanism in a view similar to FIG. 3 on the transition of the container from the transport position to tilting to unload the container contents.
  • FIG. II shows the locking mechanism in a view similar to FIG. 3 with the lower longitudinal beam released, at the initiation of the tilting or dumping procedure.
  • FIG. 12 shows the locking mechanism in a view similar to FIG. 3 after the termination of dumping shortly before the container is locked in the horizontal position again.
  • FIG. 13 shows the locking mechanism in a view similar to FIG. 3 corresponding to the lowering ofthe linkage.
  • FIG. 14 shows a locking mechanism in a view similar to FIG. 3 in an embodiment with offset actuating pins for achieving a greater lifting height for tipping purposes.
  • FIGS. I and 2 The diagrammatic drawing shows in FIGS. I and 2 an agricultural container vehicle with a frame I and a tow bar 2 for attachment of the vehicle to a tractor.
  • the frame I is constructed in a forked shape (bifurcatedll and at the rear end of the frame limbs 3 is provided with wheels 4.
  • On each frame limb 3 a lifting linkage part made up ofintersecting (crossing) links 5 and 6 is arranged.
  • the linkage is driven by means of hydraulic cylinders 7.
  • Each hydraulic cylinder is attached to the frame limb 3 while its piston or ram is attached to the intersecting link 6.
  • the ends of the intersecting links 5 and 6 are pivoted on upper longitudinal beams 8 and lower longitudinal beams 9.
  • the lower longitudinal beam 9 is connected at its rear end with the frame limb 3 for pivoting movement about a pin 10 which is horizontal and perpendicular to the direction of travel.
  • the other end of the longitudinal beam 9 is capable of being connected by a releasable locking mechanism 11 with the frame I.
  • the front ends of the intersecting links 5 and 6 are arranged in guide slots 12, 12 in the longitudinal beams 8 and 9 so as to be able to perform relative translatory movement.
  • the upper longitudinal beams 8 serve for supporting a container 13, which is held by means ofa stop or catch 14.
  • a joint pin 15, which is carried on rollers 15' (see FIGS. 4 and 5) for translatory movement in the longitudinal beam 9 has a latch 16 pivoted on it (see FIG. 3).
  • the latch is constructed as a plate with a housing part 1'6.
  • a tension spring 17 urges the latch 16 downwards into the guide slot I2.
  • the latch 16 has a recess 18 which can be closed by a pivoting ward 19.
  • the swinging movement of the ward 19 is limited in the one direction by means of the abutment 20 and in the other direction by a pivoting toggle catch 21.
  • An abutment 22 limits the pivoting movement of the catch 21.
  • the ward l9 and the catch 21 are connected together by means of a tension spring 23 which is capable of being moved into positions above and below the pivot point 24 (dead center) of the toggle catch 21 for pressing the toggle catch 21 against the ward 19 or bringing it out of engagement from it.
  • the longitudinal beam 9 is provided below the guide slot 12 at a position close to the path of movement of the latch In and the ward 19, with a lug 9 (see FIGS. 3 and 4).
  • the lug 9 carries a latch pin 25 which cooperates with the recess 18 of the latch 16 and with the ward.
  • the pin 25 is fixed in the lug and has the purpose of locking the intersecting-link linkage in the transport position of the container 13.
  • an actuating stud 27 is mounted so as to be capable of moving in a slot 26 in the lug 9' on the longitudinal beam 9.
  • the actuating stud 27 is mounted in a longitudinal slot 28 in a moving plate 29 which is provided with a further pin 30.
  • a tension spring 31 urges the plate 29 with the pin 30 against a hook 32 on the frame limb 3 and locks the longitudinal beam 9 in relation to the frame. In order to start the tilting procedure the detent mechanism 30 and 32 must be released.
  • the latch 16 moves so far that the actuating stud 27 fits into the recess 18 and the latch then moves the actuating pin, on further movement, against the rear edge of the longitudinal slot 28 in the plate 29, as will be seen in FIG. 11.
  • the plate 29 is displaced in a rearward direction against the pull of the spring 31, the pin 30 being withdrawn from the recess of hook v 32.
  • the longitudinal beam 9 is now unlocked and is tilted about its transverse pins 10 together with the lifting linkage and the container 13 by the hydraulic cylinders 7.
  • the latch 16 By operating the hydraulic system for a short time the latch 16 is made to move so that the ramp 38 runs over the actuating stud 27 and is raised so that the recess 18 is cleared from the actuating stud 27 without the latter being moved. After the latch 16 has been released, the ward 19 swings in a clockwise direction and covers the recess 18. After switching off the hydraulic drive the intersecting link 5 with the latch 16 sinks under the weight of the container and the linkage in the guide slot 12 of the longitudinal beam 9 in a forward direction into the starting position (see FIG. 13).
  • the locking arrangements in accordance with the invention make it possible to carry out fully automatically the picking up, transporting, stacking, tipping, and laying down of the container.
  • the driver can carry out in a simple manner all operations by himself from the tractor seat, after the actuating stud 27 has been placed in position.
  • the time required for locking and unlocking is reduced practically to zero.
  • a vehicle comprising a frame; parallel longitudinal beams pivoted on the frame; a load-support linkage carried on the beams; and drive means connected with the frame and the linkage, said load-support linkage comprising two links having lower ends connected with the beams for relative translatory movement, and catch means arranged to be set by, to check and allow such relative translatory movement for causing said drive means selectively to tip the load by tilting the beams about a transverse axis and to actuate the linkage to raise the load while beams remain angularly fixed in relation to the frame, said catch means including pivoting latches arranged on said lower ends of said links and provided with recesses, and latch pins arranged on adjacent parts of the beams adapted to fit into said recesses of the respective latches.
  • each of said wards has a respective ramp face arranged to contact the respective actuating stud and latch pin for movement of the ward into a position in which it uncovers the recess in the adjacent latch.
  • each of said plates lies in a slot in which the adjacent actuating pin lies.
  • linkage comprises two pairs of crossing links arranged on opposite sides of the vehicle.
  • a vehicle comprising:
  • a wheel support displaceable over the ground for transporting and tilting a load
  • At least one arm pivoted at one end to said support and swingable relatively thereto;
  • link means mounted on said arm and carrying said load. said link means being extendable and retractable to raise and lower said load relative to said arm;
  • said catch means between said link means and said arm for selectively locking said link means with respect to said arm, said catch means including; a pin formed on said arm, said link means including a member longitudinally slidable along said arm and provided with a recess adapted to receive said pin, and mechanism responsive to the movement of said link means relative to said arm for automatically controlling the movement of said pin into and out of said recess.

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Auxiliary Methods And Devices For Loading And Unloading (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Loading Or Unloading Of Vehicles (AREA)
  • Load-Engaging Elements For Cranes (AREA)
US6448A 1969-02-03 1970-01-28 Agricultural vehicle with lift-body capability and the like Expired - Lifetime US3637098A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691905164 DE1905164C3 (de) 1969-02-03 Fahrzeug, insbesondere landwirtschaftliches Fahrzeug

Publications (1)

Publication Number Publication Date
US3637098A true US3637098A (en) 1972-01-25

Family

ID=5724132

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Application Number Title Priority Date Filing Date
US6448A Expired - Lifetime US3637098A (en) 1969-02-03 1970-01-28 Agricultural vehicle with lift-body capability and the like

Country Status (6)

Country Link
US (1) US3637098A (enrdf_load_stackoverflow)
BE (1) BE745127R (enrdf_load_stackoverflow)
CH (1) CH531946A (enrdf_load_stackoverflow)
FR (1) FR2034516A6 (enrdf_load_stackoverflow)
GB (1) GB1288991A (enrdf_load_stackoverflow)
NL (1) NL7001254A (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3902616A (en) * 1973-10-09 1975-09-02 Mengele & Soehne Masch Karl Lifting and tilting device
US4392687A (en) * 1980-05-21 1983-07-12 Institute For Industrial Research & Standards Lifting and tilting trailer
US20060006726A1 (en) * 2004-07-12 2006-01-12 Garvey William R Height adjustable dumping apparatus
SG144730A1 (en) * 2005-02-18 2008-08-28 Waste Man Pte Ltd A vehicle having a lifting device

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI62981C (fi) * 1981-02-12 1983-04-11 Partek Ab Laosanordning foer lastningsanordning
GB2141399B (en) * 1983-06-16 1986-08-13 Alexander Adams Load-carrying vehicle
GB2190347A (en) * 1986-04-18 1987-11-18 Leonard William Mason Dumper truck
CN113459930B (zh) * 2021-08-14 2022-04-19 上海厦航物联网科技股份有限公司 一种物流用新能源汽车

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3036865A (en) * 1959-11-18 1962-05-29 Lakeland Equipment Co Inc Combination dump and high-lift truck

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3036865A (en) * 1959-11-18 1962-05-29 Lakeland Equipment Co Inc Combination dump and high-lift truck

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3902616A (en) * 1973-10-09 1975-09-02 Mengele & Soehne Masch Karl Lifting and tilting device
US4392687A (en) * 1980-05-21 1983-07-12 Institute For Industrial Research & Standards Lifting and tilting trailer
US20060006726A1 (en) * 2004-07-12 2006-01-12 Garvey William R Height adjustable dumping apparatus
SG144730A1 (en) * 2005-02-18 2008-08-28 Waste Man Pte Ltd A vehicle having a lifting device

Also Published As

Publication number Publication date
FR2034516A6 (enrdf_load_stackoverflow) 1970-12-11
DE1905164B2 (de) 1976-12-23
GB1288991A (enrdf_load_stackoverflow) 1972-09-13
NL7001254A (enrdf_load_stackoverflow) 1970-08-05
BE745127R (fr) 1970-07-01
CH531946A (de) 1972-12-31
DE1905164A1 (de) 1970-09-10

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