FR2461436A1 - REMOVABLE DEVICE FOR TRANSPORTING AND OPERATING A TOOL THAT CAN BE MOUNTED ON A TACTOR - Google Patents

Abstract

TRANSPORT AND MANEUVERING DEVICE FOR A TOOL, THIS DEVICE THAT CAN BE MOUNTED ON AND REMOVED FROM A TRACTOR AND INCLUDING AN ARTICULATED ARROW WHICH IS MOUNTED ON THE TRACTOR OR A SUPPORT WHICH IS FIXED TO IT, THE FIRST ARM OR INTERNAL ARM WITH RESPECT TO THE SUPPORT, THE ARMS OF THE ARROW BETWEEN THEM AND THE TOOL IN RELATION TO THE LAST ARM OR EXTERIOR ARM BEING MOBILE THANKS TO THESE HYDRAULIC CYLINDERS. THE TRANSPORT AND MANEUVERING DEVICE INCLUDES A FRAME WITH THREE RECTANGULAR SIDES 1, WHICH IS MOUNTED BY THE FREE ENDS OF THE TWO BRANCHES 7, 8 SENSITIVELY PARALLEL, TO THE CHASSIS 14 OF THE TRACTOR 4, SO AS TO BE REMOVED FROM THE SIDE 5, ITS LARGE WHICH CONNECTS THE TWO PARALLEL BRANCHES 7, 8 BEING REMOVABLE FITTED ON ONE OF THE WHEELS OF THE TRACTOR AND SUPPORTED BY MEANS OF CARRIER WHEELS 39 ON THE GROUND, AND IN THAT ARROW 2 WITH A ROTARY PLATE 42 THAT CAN ROTATE AROUND 'A VERTICAL AXIS IS ROTATING ON THE FRAME 1.

Description

* 1, - The present invention relates to a removable device for

  tool transport and operation, which can be

  mounted on a tractor, comprising an articulated boom

support on the tractor with a support attached to it,

  hydraulic linders for moving the first arm, or innermost arm relative to the support, the arms relative to each other and the tool relative to the last

arm or outer arm.

  In the transport and maneuvering devices previously used for a tool on a tractor, a tool essentially used for cultivating the soil and / or crops lying on the ground, neither slopes, edges of ditches, etc., nor in particular the soil situated before and just after the tractor cannot be treated by the implement without any adverse effect on the stability of the combination of the tractor, the operating device and the implement. It is also difficult and inconvenient to mount the operating device with the tool on the tractor and to remove it from the tractor,

  operation that requires a hoist or other lifting device

vage, and cannot normally be done by one man.

  In addition, before mounting the operating device with

  the implement, you must first equip the tractor with auxiliary elements

nor can you immediately use the trac-

tor for other tasks after dismantling the support and the operating device. First remove the auxiliary elements. The present invention aims to remedy the drawbacks

  of this known transport and maneuvering device.

To achieve this objective, according to the invention, the transport and maneuvering device comprises a three-sided frame, substantially rectangular, mounted at the ends

free of its two substantially parallel branches on the frame

  located on the tractor, so as to be removable, its long side, which connects the two parallel branches, being removably mounted on one of the tractor wheels and resting on the ground by means of carrying wheels. The boom is rotatably mounted on the

built with a turntable around a vertical axis.

  The result of the application of these three measures is that the combination of the tractor, the operating device

  and of the tool constitutes a stable and reliable assembly in all

  your circumstances, the tool being able to be operated at the same time

  in front of the tractor, next to him and behind him, and the sta-

bility of the tractor not subject to unfavorable influences, when it is no longer guided during the operations of the tool, or even when the tractor is moving along a watercourse and it is necessary to treat the slopes, the tool being

placed below and at a certain lateral distance from the trac-

  1O tor. Furthermore, when the transfer device is dismantled

  carrying and maneuvering, the tool and the carrying wheels can rest on the ground, as during assembly, so that a

  only man can perform the operation.

  According to a preferred embodiment of the transport and maneuvering device according to the invention, the branches of the frame are interconnected so as to be able to pivot and can be fixed together by means of a pin.

  locking, the free ends of the two sensitive branches

completely parallel comprise a fork with one or more bores, which can be coupled to a support block mounted on the chassis at the front and at the rear of the tractor and comprising a bore which can be aligned with the bores of the fork,

bores through which a locking pin can be inserted

lage, a support block is attached to the long side of the frame, a

  Horizontal liner being mounted so as to be movable while undergoing

  sant the effect of an antagonistic elasticity, bearing which is located in a bearing cushion which is fixed to the hub of the

rear wheel by means of a transverse frame and the wheels

  frame frame can be adjusted in vertical direction 3O by means of one or more hydraulic cylinders and can be extended and retracted transversely to the

long side of the frame.

Thanks to this embodiment of the trans-

  port and maneuver according to the invention, the entire device can easily and quickly be mounted on and removed from the tractor, after which the tractor can be used immediately for all other operations for which a

  tractor is usually made. This mode of execution of the provision

transport and maneuverability is robust, while being

easy to use.

According to a particularly efficient mode of execution

  transport and maneuvering device according to the invention

  tion, the tool is mounted on the last boom of the boom by means of hydraulic drive mechanisms, so

to be completely mobile.

According to the invention, when a mowing beam is used as a tool, it is pivotally mounted about an axis perpendicular to the last arm of the boom, tilting about an axis perpendicular to said axis and to the boom arm thanks to hydraulic cylinders and swivel around

  the axis of the boom arm thanks to a hydraulic motor.

  This allows the tool to perform operations

  referred to on the ground and / or crops located on the ground, inde-

  depending on the position of the tractor and / or the device

maneuver.

It is possible to operate not only in front of,

  underneath and on the side of the tractor on level ground, but also

  on slopes and flat areas both

above and below the horizontal surface on which the tractor moves. If necessary, it is also

  possible to drive the tractor on the slope itself.

We will now describe some examples of execution

  non-limiting of the invention, with reference to the attached drawing, in which: FIG. 1 is a perspective view of a tractor,

  on which the transport and handling device are mounted

  work, comprising a mowing beam as a tool; Figure 2 corresponds to Figure 1, the operating device comprising a mowing basket;

Figure 3 is a top view of the frame of the device.

  transport positive according to the invention; Figure 4 is a longitudinal section of the bearing located on the frame, along the line IV-IV of Figure 3; Figure 5 is a perspective view of a block of

  guide located in the bearing of figure 4.

The transport and maneuvering device according to the invention, represented in FIG. 1, comprises the transport device proper 1, the maneuvering device 2 and the tool 3 which can be mounted on the tractor 4 and

disassembled from it as a whole.

The support includes a three-sided frame 1 sensi-

clearly rectangular (see in particular Figure 3),

both a large side 5 which is, when mounted, sensitive-

ment parallel to the longitudinal axis 6 of the tractor 4, and two small parallel branches 7 and 8 which are, when they are

  mounted, substantially perpendicular to the arms 5, the branches

ches 7 and 8 being connected so that they can turn around

  a pivot 9 with the large side 5 and which can be connected to it

  ci by means of a bolt comprising a wing nut,

  which protrudes through a plate 11 welded to the branches

  ches 7 and S. The branches 7 and 8 have at their free ends a fork 12, three pairs of aligned bores 13 being formed in the two "teeth". A support block 15

is fixed to the chassis 14 of the tractor at the front and rear

and in the longitudinal plane of symmetry of the tractor, support block comprising a square or rectangular spindle 16 comprising a vertical bore 17. After moving the forks T2 on the spindles 16, the frame 1 can be fixed by means of a screw blocking 18 which can be inserted through one of the pairs of bores 13 of the fork and the bore 17

of pin 16.

  The frame 1 is further supported by its large side on one of the rear wheels of the tractor 4. For this purpose, a cross frame 20 is fixed with bolts 21 on the rim 19, bolts which are screwed into the blocks 22 welded

  at the rim 19. A bearing 24 comprising, for example, a seam

bronze set 25, is welded concentrically to axis 23 on

the cross frame 20.

  In the long side 5 of frame 1, cf. the dashed line in the section of Figure 4, a hollow spring support or a spring housing 26 is welded; it comprises

  on the side remote from the wheel, a wall 27 in which is located

  ve a vertical oblong slot 28. A pin 29 is inserted into the bearing 25 from the outside through the slot 28. The pin 29 is

246 1436

held outside the case 26 by a rotating collar 29 'which can rotate around a fixing bolt 29 "in the wall 27. On the axis 29 is mounted a suspended block 31 by means of a bronze bushing 30, block 31 which is guided on both sides by means of pins 32 in a vertical groove (not shown) formed in the two side walls 33 of the housing 26. The block 21 has on its upper face and its lower face a support boss spring 34, while the upper wall 35 and the lower wall 36, respectively of the case 26, likewise have internally a spring support boss 37. A - hard compression spring is mounted on the bosses 34 and 37 between the block 31 and the upper wall 35 and the wall

lower 36, respectively.

  In the embodiment of Figures 1 and 2, the frame 1 is supported on the ground by means of a set of wheels 39 which are mounted on axes or axles 40 which can be

  moved up and down hydraulically and which can

  wind be mechanically extended and retracted transversely to the long side 5 of the frame 1, so that the wheels 39 can roll on a road or a path or a lowered slope, while the tractor rolls on a road or path raised, and the wheels 39 rest on the ground

  at a relatively great distance from the tractor wheels, when

that the axes 40 are out, the two possibilities can be applied separately or in combination. When using the support wheels 39 extended transversely to the long side 5 of the frame 1, support wheels 39 which can be adjusted hydraulically to the correct height, a very stable combination of the tractor, the operating device and the tool, making it possible to perform perfectly

operations in or on the soil and / or on soil crops.

  A frame 41 is also mounted, with a rotary platform 42, on the long side 5 of the frame 1, a support 43 of the operating device 2 being fixed on this platform. The rotary platform 42 can rotate around a vertical axis by hydraulic or electrical means, using a hydraulic motor, for example. The first arm 45 of the operating device 2 is mounted on the support 43 so as to be able to pivot around an axis 44. The arm 45 can

  be moved in a vertical plane by means of a hydraulic cylinder

  lique 46 fixed, so as to be able to pivot, to the support 43 and to the arm 45. At the end of the arm 45, a second arm 49 is mounted so as to be able to pivot by means of a plate 47 about an axis 43 , the arm 49 being movable in a plane

  vertical thanks to a hydraulic cylinder 50 connected so as to

  see pivot on arm 49 and plate 47. Plate 47 is

welded to the arm 49.

  Tool 3, mowing plague in the embodiment

  in Figure 1, can pivot around the axis 51 of the tubular arm

  laire 49 by means of a hydraulic motor 52 connected to the fork 53 on which the mowing beam 3 is fixed so as to be able to pivot around a pivot (a spindle) 54 by means of a pivoting mechanism 55 which is actuated by a hydraulic cylinder 56. The pivoting mechanism 55 comprises a bearing 57, the mowing beam 3 being able to pivot about an axis 58 which is generally perpendicular to the axis 51 of the arm

  49, thanks to a hydraulic cylinder 59 on the pivoting mechanism

55. This implies that the tool 3 is completely mobile on the last outer arm 49 of the operating device 2, the tool 3 being able to carry out the desired operations in any random position relative to the arm 49 or to the tractor in the area of displacement of the hydraulic cylinders used. Mowing flail 3 can be driven

  by a hydraulic motor not shown.

  In the embodiment of the support and maneuvering device of FIG. 2, a frame 60 comprising a rotary platform 61 is mounted on the large side frame 1

which is fixed a support 62 of the operating device 2 '.

  Like the rotary platform 42, the rotary platform

61 can be rotated hydraulically or electrically-

  ment around a vertical axis by a hydraulic motor, for example. The first arm 64 of the operating jib 2 'is pivotally mounted around an axis 63 located on the support 62. The arm 64 can move in a vertical plane thanks to a hydraulic cylinder 65 which is fixed, so as to be able pivot, to the support 62 and to the arm 64. At the end of the arm 64, a second arm 67 is mounted so as to be able to pivot around an axis 66, second arm 67 which can move relative to the first arm 64 thanks to a hydraulic cylinder 68 which is mounted so as to be able to pivot on the first and second arms. At the other end of the arm 67, the tool 3 'can pivot around a

axis 74 and move around the axis thanks to a hydraulic cylinder

lique 69 which is fixed so as to be able to pivot on the tool 3 'and on the arm 67. The tool 3' which is produced in the form

  a mowing basket, has its own hydraulic motor

  lique 72 for the transport of mown crops. Trash

72 includes a reinforcing frame 73.

If the device of FIG. 2 is operated in a position of the type of that shown, it is advisable to move the load wheels 39 on the axes 40 externally relative to the frame 1, as indicated in phantom in FIG. 1 The wheels 39 can be adjusted by means of said hydraulic device so as to be higher or lower than the tractor wheels, depending on the height of the ground on which the wheels 39 roll relative to the ground on which the tractor is traveling. If the supporting wheels 39 pass over bumps, the movements of the frame 1 than that

  causes will be absorbed and absorbed by the comp springs

  pressure 38 located in the spring housing 26.

Hydraulic motors and hydraulic cylinders

  indicated in the description above are connected by a

  steering or control mechanism not shown at a source of pressurized hydraulic fluid, not shown either, the possibility of maintaining the pressure prevailing in the hydraulic system by means of a pump which

can be driven by the tractor engine.

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R EV EN DI CATI ON S

1.- Transport and operating device for a tool, said device being able to be mounted on a tractor and to be removed from it and comprising an articulated boom which is mounted on the tractor or a support which is fixed to it, the first arm or inner arm relative to the support, the arms of the arrow between them and the tool compared to the last

arm or outer arm being movable by hydraulic cylinders

liques, characterized in that the transport and handling device comprises a rectangular three-sided frame (1), which is mounted by the free ends of the two branches (7, 8) substantially parallel to the chassis (14) of the tractor ( 4), so that it can be removed, its long side (5) which connects the two parallel branches (7, 8) being removably mounted on one of the tractor wheels and supported by means of carrying wheels (39) on the ground, and in that the boom (2, 2 ') with a rotary plate (42, 61) which can rotate around

a vertical axis is rotatably mounted on the frame (1).

  2.- transport and maneuvering device according to claim 1, characterized in that the branches (7, 8) of the frame (1) are connected so as to be able to pivot (9) between them and can be fixed one compared to each other

  by means of a locking pin (10), in that the ends

free mites of the two substantially parallel branches (7, 8) comprise a fork (12) comprising one or more bores

(13), said fork being able to be threaded on a support block

  port (15, 16) mounted on the chassis (14) at the front and rear

  of the tractor (4), and comprising a bore (17) which can be aligned with the bores (13) of the fork, bores through which a blocking pin (18) can be inserted, as a spring housing (26) is fixed to the long side (5) of the frame (1), a horizontal bearing (29) being mounted, so as to be movable against an elastic force (38), a bearing which is located in a bearing (25) which is fixed to the rim (19) of the rear wheel by means of a cross frame (29), and in that the supporting wheels (39) of the frame (1) are adjustable

vertically by one or more cylinders and few

  can be extended and retracted transversely with respect to

at the long side (5) of the frame (1).

  3.- Transport and maneuvering device according to

  any of claims 1 and 2, characterized

in that the tool (3) is mounted on the last arm or outer arm (49) of the boom so as to be able to pivot

completely, thanks to hydraulic drive mechanisms

ques (52, 56, 59).

  4.- Device according to claim 3, characterized in that, when the tool used is a mowing beam (3),

this mowing beam can pivot about an axis (57, 58) perpen-

dicular to the last arm (49) and can tilt about an axis (59) perpendicular to said axis (57, 58) and to the arm (49) of the boom thanks to a hydraulic cylinder (59 or 56) and can pivot around the axis (51) of the arm (49) of the upright by

to a hydraulic motor 52.