FR2550048A1 - BRABANT OR REVERSIBLE PLOW WITH HITCHING OR SADDLE - Google Patents

Abstract

THE PRESENT INVENTION CONCERNS A BRABANT PLOW OR TRAILED PLOW WHICH INCLUDES A COUPLING FRAME THAT CAN BE COUPLED TO A TRACTOR. THIS PLOW IS CHARACTERIZED IN THAT IT INCLUDES A FIRST ADJUSTMENT ELEMENT 1 OF THE ANGULAR POSITION OF THE PLOW FRAME 8, ONE OF THE ENDS OF THIS ADJUSTMENT ELEMENT 1 BEING SUPPORTED, BY AN ARTICULATION, ON A SUPPORT POINT OR A PART OF THE PLOW 4, 4 ON WHICH ARE ARTICULATED, ON THE ONE HAND, ONE OF THE ENDS OF A SECOND ADJUSTING ELEMENT 2 OF THE TOWING POINT, THE OTHER END OF WHICH IS CONNECTED TO THE TURNING DEVICE 7, 7 , AND, ON THE OTHER HAND, ONE OF THE ENDS OF A PUSH BAR 3 OF WHICH THE OTHER END IS ARTICULATED DIRECTLY OR INDIRECTLY ON THE CONTROL BAR 17.

Description

The present invention relates to a brabant plow or tralnse plow which

  comprises a coupling frame which can be coupled to a tractor, wherein the plow frame is rotatably mounted under the action of a turning device, and a device for laterally pivoting the plow frame. around an essentially vertical axis in the working position by means of an adjustment system connecting the plow frame to the turning device, 1-e plow frame carrying 10 plates, in number corresponding to the number of grooves, which enclose the frame and on which are fixed support parts and shares, these plates being mounted so as to pivot about substantially vertical axes in the working position and being connected to each other by a control bar This method of construction is necessary when you want to ensure a progressive adjustment of the total cutting width of the wheel. However, any modification of the cutting width is necessary. épercute

  on the setting of the point of pull.

  The object of the invention is to allow the realization of a folding plow hitch or saddle support of the type initially indicated in which the adjustment of the cutting width and the adjustment of the point of traction (the

  resulting from the forces acting on the plow to follow the towing axis) can be effected independently of one another.

  This object is achieved according to the invention because the plow comprises a first adjustment element known per se, capable of being adjusted in the longitudinal direction, which makes it possible to modify the angular position of the plow frame with respect to the direction of work and one of the end of this adjustment element bears, by a joint, on a fulcrum or a part of the plow or on which are hinged, on the one hand, one ends of a second adjustment element

  which can be adjusted in the longitudinal direction for the adjustment of the point of traction and the other end of which is pivotally connected to the tensioning device.

  turn, and, on the other hand, one end of a push bar whose other end is articulated directly or indirectly on the control bar.

  According to a first embodiment of the invention the plow frame is connected to the turning device by means of two telescopic tubes under conditions such that on the outer tube which is articulated on the turning device, is mounted a slide so as to be able to pivot about a nearly vertical axis in the working position of the plow, and

  that on this slide are articulated one end of the two adjustment elements and one end of the push bar; the other end of the first adjusting member is pivotably mounted on the inner tube which is hinged to the plow frame; the other end of the second adjusting member is rotatably mounted on the outer tube and the other end of the ipoussée bar is hinged, via a transmission lever, to the control bar. .

  According to an alternative embodiment of the invention the plow comprises a slide, one end of which is mounted on the turning device so as to be pivotable about a substantially vertical axis in the working position of the plow, the other end of this slide being articulated on one end of the two adjustment elements and on the end of the push rod, the other end of the first adjustment element being mounted so as to be able to pivot directly on the plow frame, the other end of the second adjusting member being rotatably mounted on the turning device, and the second end of the push bar is hinged directly to the control bar in a third form embodiment of the invention the plow comprises an oblong guide hole secured to the turning device in which can move an axis to p vertical position in the working position of the plow, this axis being connected by hinges to one end of the two adjusting elements and at the end of the push bar, the other end of the first adjusting element being articulated directly on the plow frame and the other end of the push bar being articulated directly on the control bar. It may be particularly advantageous for the first adjusting element for adjusting the cutting width to be a cylinder actuated by a pressurized fluid, in particular a cylinder and piston hydraulic cylinder, a spindle device or a clamping sleeve or an element

remote controlled setting.

  If, according to another variant embodiment of the invention, the second adjusting element comprises at least one clamping device which can be detached and which can be connected by means of a traction element, for example of a traction cable, to a control member, for example to a handle, on the tractor, the adjustment of the cutting width and that of the point of traction can then be carried out from the tractor seat, Without having to descend, it is particularly advantageous for the adjusting element to comprise at least one clamping jaw which is pivotally mounted, which can be actuated by means of the pulling element and which can be It is preferable to engage the rack or the like with the aid of a spring. Preferably, the clamping jaw is actuated by means of an adjusting lever which is connected to the spring. ' lement traction releasable clamping La-bond may also be

  a hydraulic and / or pneumatic clamping device.

  The following will be described by way of non-limiting examples, various embodiments of the present invention, with reference to the accompanying drawing in which: Figure 1 is a plan view of a first form

  execution of a moving plow according to the invention.

  FIG. 1A is a detail view along the arrow

A of Figure 1.

  FIG. 2 is a plan view of a second form

  execution of a moving plow according to the invention.

  Figure 3 is a plan view of a third

  embodiment of a brabant plow according to the invention.

  Figure 3A is a detail view, partially in

  cut, made according to the arrow A of FIG.

  FIG. 4 is an elevational view, on a larger scale, of an adjusting or locking element which can be

  used in the brabant plow according to the invention.

  Figure 5 is a sectional view -faite following the

line V-V of FIG.

  The reversible or reversible plow shown in FIG. 1 is essentially constituted by a hitching frame which has attachment devices 102, 103, 104 for the upper and lower arms of the lifting device of a tractor vehicle not shown, by a plow frame 8 carrying several shares 106 and 20 comprising a device 7 for reversing the plow frame 8 The plow frame 8 is mounted so as to be pivotable as a whole, under the action of the device 7, associated with the hitch frame 100, around a substantially horizontal axis 108 in the working position. The plow frame 8 is hinged on the one hand to

  one of its ends by means of a substantially vertical axis 109 in working position, on the turning device 7, and it is connected, on the other hand, by means of a bar 110 acting between the coulters 106, to the turning device 30.

  The bar 110 is constituted by two tubes 5 and 6 nested, sliding one inside the other and having a rectangular section, in particular square, the outer tube 5 being hinged on the turning device by an axis 113 35 which is essentially vertical in working position, and

  the inner tube 6 being articulated on the plow frame 8 by an axis 114 which is also substantially vertical in the working position The axis 113 is at a certain distance

  In the illustrated embodiment, the axis 114 is intersected perpendicular to the center axis of the plow frame 8, but could be oriented otherwise.

  The coulters 106 and the ancillary support pieces 106 'are fixed on plates 9 which enclose the plow frame 8. These plates 9 are mounted on the plow frame 8 so as to be rotatable about pivot axes 116 which are essentially vertical. in the working position and connected, at a distance from these pivot axes 116, to a control rod 17 This control rod 17 is essentially oriented in the direction of the plow frame 8 and connects the plates 9 to each other. The articulated connection between the control bar 17 and each plate 9 is designated 118. The possibilities of pivoting the plates 9 on the plow frame are limited by a groove and tenon device 117. The telescopic tube or bar 110 which connects the positive overturning device 7 to the frame 8, carries, for the adjustment of the cutting width, a clamping sleeve or a pin 1 which is articulated on one side (in 1 ') on the inner tube 6 and on the other side (1 "), via a slide 4, on the outer tube 5 are also articulated on the slide 4 (2" and 3 ") l an adjusting member which is shown in Figures 1 and 1A in the form of a clamping sleeve or spindle 2, which is intended for adjusting the point of tension and which is articulated, on the other side ( 2 '), on the outer tube 5, and the beam bar 3 which is coupled, via a transmission lever 16 hinged to the plow frame 8, to the

control bar 17.

  Under the action of pin 1 the frame 8 pivots and, as a result of the pivoting movement about the vertical axis 109, the control rod 17 is moved a corresponding distance via the bar thrust 3 Shortening of spindle 1 (pivoting of frame 8 clockwise around

  the axis 109) results in an increase in the cutting width and its elongation to a reduction of the cutting width.

  The slider 4 is held in position by the spindle 2. A suitable geometrical reduction allows the apparatus 5 to be, in the entire movement zone, approximately parallel to the direction of travel. The necessary adjustment of the point of pull is required. by acting on the pin 2, so that the inner tube 6 is moved by the pin 1 and that the angle of the apparatus relative to the direction of travel is changed by the desired amount.

  At the same time, the slider 4 is moved in such a way that no movement of the slider bar occurs.

  thrust 3 and, therefore, of the control rod 17.

  The desired chassis angle (pulling point) 15 is obtained by the fact that the spindle 2 is first released and after placing the plow in the lower position in the groove the angle of the frame is changed, by displacement. Towards the front or rear of the tractor until the desired result is achieved It is advantageous for pin 2 to be replaced by a clamping or adjusting element which will be described later (FIGS. 4 and 5) In the case where, moreover, the spindle 1 is replaced by a hydraulic cylinder, the operations necessary to adjust the cutting width and the point of pull can be controlled from the driver's seat of the tractor without being obliged to go down. Because, on the one hand, the slide 4 is articulated, by means of a substantially vertical axis 4 'in the working position, on the outer tube 5 and that, on the other hand, the ends of the spindle 2 , pin 1 and the thrust bar 3 are hinged, by means of an axis 4 "substantially vertical in working position, on the slide 4, any displacement of the pin 1 (cutting width) has the effect of rotate the plow frame 8 while the position of the slider 4 fixed on the outer tube 5 remains fixed with respect to this outer tube 5, so that the control bar 17, which is connected to the push bar

  3 by means of the transmission lever 16, moves.

  For setting the pull point (pin 2), the

  frame 8 pivots, without the plates 9 mounted on the frame 8 move, because the pin 2, which is articulated, on one side, on the outer tube 5 and, on the other side, on the slide 4 itself articulated on the outer tube 5 is actuated; the slide 4 pivots, under the action of the spindle 2, in such a way that no movement of the control rod 17 and consequently of the plates 9 occurs. The first adjustment is thus not influenced by the second.

  FIG. 2 represents another embodiment

  of the invention in which the same parts are designated by the same references as in FIGS. 1 and 1 AI will be considered only from that which differs from the embodiment represented by FIG.

  FIG. 2 represents a hitching plow or saddle-type plow of the initially defined type in which, for the adjustment of the cutting width, a clamping sleeve or a pin 13 is articulated on the one hand on the frame 8, on the other hand on another clamping sleeve or flange 12 and on the thrust bar 15 by means of a hinged slide 14 (14 ') on the turning body 7' .The adjustment of the point of tension is ensured by the: clamping sleeve or the pin 12 which is articulated on the one hand on the turning device 7 or 7 '(in 12') and on the other hand on the slide 14 (in 15 ') The setting of the cutting width is achieved by the actuation of the pin 13 which rotates the frame 8 Because of this pivoting of the frame 8 about the vertical axis 109, the push bar 15 and the control bar

  17 which is articulated on it (at the median hinge point 118), are displaced by a corresponding distance The shortening of the pin 13 causes an increase in the cutting width and its elongation causes a decrease in this cutting width La pin 14 is fixedly held in its position by the pin 1-2.

  geometric position allows the device to be, in the entire area of travel, approximately parallel to the

direction of the walk.

  In this embodiment also, pin 13 may, as already indicated for FIG. 1, be replaced by a hydraulic cylinder and pin 12 may be

  replaced by a clamping or adjusting member which will be described later (FIGS. 4 and 5), which allows the control of the cutting width adjustment operations and the position of the pull point from the tractor driver's seat. .

  In the embodiment shown in FIG. 2, on the one hand the slide 14 is articulated, by means of a substantially vertical axis 14 'in the working position, on the turning body 7' and on the other hand , the pin 12, the pin 13 and the push bar 3 are hinged at their ends by means of an axis 15 'essentially

  vertical in working position, on the slide 14.

  When the pin 13 is moved, the plow frame 8 pivots, the position of the articulated slide 14 (14 ') on the turning device 7, 7' remains fixed and the push bar 15 which is connected to the bar of

  command 17, moves a corresponding distance.

  For the adjustment of the point of traction, the chassis 8 pivots, without the plates 9 mounted on the frame 8 moving, because the pin 12, which is articulated on the one hand (at 12 ') on the device of flipping 7, 7 'and, on the other hand (at 14'), on the slide 14, is actuated

  FIGS. 3 and 3A show a third embodiment of the invention in which the parts already found in FIGS. 1 and 2 are designated by the same references as in these figures. differences between this embodiment and those shown in Figures 1 and 2.

  FIG. 3 represents a hitching plow or saddle support plow of the initially defined type in which the adjustment of the cutting width is ensured by a clamping sleeve or a pin 216 which is hinged on the one hand to the frame 8 (in 216 ') and, on the other hand, on another clamping sleeve or other pin 217 and on a push rod 220 via an axle 218, substantially vertical in the working position, which is located in an oblong hole 218 'whose support plate 219 is

  welded to the turning device 7.7 '.

  For the adjustment of the pulling point, the pin 217, which is hinged on the one hand to the return device 7.7 '(in 217') and, on the other hand to the vertical axis 218, is set to For the adjustment of the cutting width, the pin 216 is actuated, so that the frame 8 pivots and this pivoting movement about the vertical axis 109 causes a corresponding movement of the bar. The shortening of the pin 216 causes an increase in the cutting width and its elongation, a reduction of the cutting width. The vertical axis 218 is fixedly held in its position by the pin 217. In these conditions, the oblong hole 218 i gives, like the slide 4 of FIG. 1 or the slide 14 of FIG. 2, the device being, in all the zone of displacement, approximately parallel to the direction of travel. , a certain freedom of movement to the axis 218 relative The method of articulation of the ends of the pins 216 and 217 or of the push rod 220 on the axis 218 is clearly shown in FIG. 3 A. In this embodiment also, the pin 216 may, as already seen in the case of FIGS. 1 and 2, be replaced by a hydraulic cylinder and pin 217

  may be replaced by a clamping or adjusting element which will be described later (Figures 4 and 5); the adjustment of the cutting width and the adjustment of the point of traction can be carried out without descending from the driver's seat of the tractor.

  FIGS. 4 and 5 represent, on a larger scale, one of the clamping or adjustment elements which has been mentioned and which can be used in place of the pin 2 of FIG. 1, of the pin 12 of FIG. 2 or broach 217 of FIG.

  The adjusting element comprises a rack 21 mounted axially in a sheath 20 and a clamping device 22 which can be released and is constituted by two clamping jaws 23 which can engage with the rack 21. The jaws 23 are mounted. so as to be pivotable and they are subjected to the action of a spring 26 whose effort is exerted in the direction of the axis of the rack The actuation of the clamping jaws 23 is provided by a lever 24 which can be actuated by means of a traction element 25, in particular a traction cable associated with a not shown control part, for example a handle, from a driver's seat. and the rack 21 are each provided, at one of their ends, with an eyelet 27 or 28, the eyelet 27 ensuring the articulation of the sheath 20 on the tube 5 of the bar 110 shown in FIG. the eyelet 28 ensuring the articulation of the creamer 21 on the slide 4 shown in FIG. 1, (similarly, in the case of FIG. 2, the eyelet 27 is connected to the articulation axis 15 '25 and the eyelet 28 is connected to the hinge pin 12 'in the turning body 7' and, in the case of Figure 3, the eyelet 27 is connected to the axis 218 and the eyelet 28 is connected to the hinge axis 217 This adjustment element makes it possible to adjust the position of the slide 4 of FIG. 1 (or of the slide 14 of FIG. 2 or of the axis 218 of FIG. 3) from the seat. the driver of the tractor, releasing the clamping device 22, so that the rack 21 is pushed by the desired amount out of the sheath 20 or brought to the position that it must have by moving forwards or toward the rear of the tractor, after which the clamping device

  22 is, from the driver's seat, fixed again.

  It is not necessary that the clamping element or

  The adjustment device comprises mechanical clamping elements, for example clamping jaws, but it can also contain hydraulic or pneumatic clamping devices. Tightening can be effected by adaptation of the shapes or necessarily. The essential thing is simply that the release and the locking of the clamping device can be effected from the driver's seat of the tractor.

Claims (9)

REVENDICATI O ONS   A trailing plow or trailed plow which has a coupling frame which can be coupled to a tractor, wherein the plow frame is rotatably mounted under the action of a turning device, and a device allowing laterally pivoting the plow frame about an essentially vertical axis in the working position by means of a setting system connecting the plow frame to the turning device, the plow frame carrying plates, in number corresponding to the number of grooves, which enclose the frame and on which are fixed support parts and shares, these plates being mounted so as to pivot about substantially vertical axes-in working position and being connected to each other by a control bar, characterized in that it comprises a first adjustment element (12, 13, 22), known in itself, capable of being adjusted in the ns longitudinal, which allows to change the angular position of the plow frame (8) relative to the directioh working and one of the end of this setting element (1,13,216) is supported, by a joint, on a fulcrum or part of the plow (4.4 "; 15 ', 14; 218) on which are articulated, on the one hand, one of the ends of a second adjusting element (2, 12, 27), which can be adjusted in the longitudinal direction for the adjustment of the point of tension and the another end is rotatably connected to the turning device (7,7 '), and on the other hand, one end of a push bar (3,15,220) 30, the other end is articulated directly or   indirectly on the control bar (17).   2. A plow according to claim 1 characterized in that the plow frame (8) is connected to the turning device (7) via two telescopic tubes (5, 6) under conditions such as on the outer tube. 5, which is articulated on the turning device (7), is mounted on a slide (4) so as to be able to pivot about an axis (4 ') which is approximately vertical in the working position of the plow and that on this slide (4) are articulated one end of the two adjustment elements (1, 2) and one end of the push bar (3); the other end of the first adjusting member (1) is pivotably mounted on the inner tube (6) which is hinged to the plow frame (8); the other end of the second adjusting element (2) is rotatably mounted on the outer tube (5) and the other end of the lifting rod (3) is articulated via a lever of   transmission (16) on the control rod (17).   3 plow according to claim 1 characterized in that it comprises a slide (14), one end of which is mounted on the turning device 15 (7, 7 ') so as to be pivotable about an axis (14). ') substantially vertical in the working position of the plow, the other end of this slide (14) being articulated on one end of the two adjusting elements (12,13) and on the end of the bar 20 (15) (at 15 '), the other end of the first adjusting element (13) being pivotally mounted (at 13') directly on the plow frame (8), the other the end of the second adjusting member (12) being pivotably mounted (at 12 ') on the turning device (7,7'), and the second end of the -bar of   thrust (15) is articulated directly on the control rod (17).   4 plow according to claim 1 characterized in that it comprises an oblong guide hole (218 '), 30 integral with the turning device (7,7'), in which can move an axis (218), roughly vertical in the working position of the plow, this axis (218) being connected by hinges to one end of the two adjusting elements (216,217) and to the end of the push bar (220), other end of the first adjusting element (216) being articulated directly on the plow frame (8) and the other end of the push bar (220) being articulated directly on the control bar (17).   Plow according to any one of claims 1 to 4 characterized in that the first element of   Adjustment (1,13,216) for adjusting the cutting width is a cylinder actuated by a pressurized fluid, in particular a cylinder and piston hydraulic cylinder, a pin device or a clamping sleeve or a remote control element.   6. Plow according to any one of claims I to 5 characterized in that the second adjusting element (2,12,217) comprises at least one clamping connection device (22) which can detach and which can be connected to by means of a traction element (25), for example   of a traction cable, to a control member, for example   to a handle, lying on the tractor.   Plow according to Claim 6, characterized in that the adjusting element comprises at least one clamping clamp (23) which is pivotally mounted and which can be actuated by means of the pulling element ( 25) and which can be engaged with a rack (21) or the like and preferably subject to the action of a spring.   Plow according to Claim 7, characterized in that the actuation of the clamping jaw (23) is provided by an adjusting lever (24) which is connected to the traction element (25).   9. Plow according to any one of claims 6 to 8 characterized in that the removable clamping connection is a hydraulic and / or pneumatic clamping device.