FR2532812A1 - ARM IN A FALSE DOOR FOR TRACTED MACHINES FOR DRIVING FOLLOWING BODIES - Google Patents

Abstract

INVENTION CONCERNING THE WORKING OF THE LAND. ARMS IN ANCHORED DOOR, CALLED ARROW 19, WITH TAKING ELEMENTS FOR TOWED MACHINES, ENSURING THE AUTOMATIC COUPLING AND DISCOUPTING OF THE RETAINING ARMS 8, 9 OF FOLLOWING BODIES 1, WHICH PRESENT A LATERAL DIRECTED HOOK AT THEIR FREE ENDS COOPERATE WITH THE ELEMENTS OF TAKING THE ARROW. AN ACTUATOR ACTS ON ARM 8, 9 TO BRING IT TO BE PARALLEL TO THE ARROW OR THE TAKING ELEMENTS 18 OF THE ARROW ROTATE TO DETACH ARM 8, 9. APPLICATION TO REVERSIBLE PLOWS PULLING COMPACTOR ROLLERS AND EMOTORS .

Description

The Convention concerning the work of the land,

  more specifically relates to a door-to-door arm

  false or "boom" with trailing-machine grippers for coupling and automatic decoupling of the trailing-member restraining arms, which at their free ends have a laterally-directed hook and cooperate with making

  the arrow, which is equipped with a device

  puts the detachment of the arrow with the retaining arm

naked.

  The arms cantilevered or arrows of the kind mentioned above, which are used for the automatic coupling of the follower members, are used mainly with reversible plows. Under the name of the follower member, they are different tools or tillage machines,

  such as rollers, etc.

  The traps of the retaining arms of the follower bodies are

  in such a way that, when the boom is raised, which at the same time as the lifting of the plow, they can slide out of the catching elements of the arrows downwards despite the obliquity In the plows this is further facilitated by the fact that as a result of the particular arrangement of the upper bar of the three-point linkage the plow is raised at the rear more strongly than at the front, so that the gripping element of the arrow tilts a little towards

  On the other hand, with semi-reversible plows

  carried, the lifting of the plow is effec-

  in parallel, so that there may be difficulties

  during the detachment of the elements of capture of the

  arrow with the hooks of the holding arm In order to

  According to the German utility model 80 21 706, it is known to provide pebbles on

the restraint arm.

  With plows of rather large size, especially

  especially in the case of semi-mounted reversible plows, there may also be problems when it comes to

  resume the follower organ, because it remains normal-

  always where the plow has been raised.

  This also means that the plow, when a new catch of the follower member, must already enter

  new in the soil to its normal working depth.

  This means either a fairly wide headland or a difficult maneuver in it It is therefore advantageous to have a device by which it is possible to leave in place 1 'follower member in

  anywhere in the field This also offers

  benefits in trapezoid-shaped fields.

  dale or triangular when one must finish plowing in the corner In this case it would be advantageous to be able to

  leave the follower in any place.

  We already know a device in which

  is positioned on the boom a hydraulic cylinder which

  a dowel against which the hook of the retaining arm is directly applied. If the follower member is to be

  left in place, the hydraulic cylinder is then ac-

  tioned, so that the hook of the retaining arm can

  come off the arrow But this known device pre-

  Feel the disadvantages on the one hand

  cofteuse and secondly to allow only one detach-

  The aim of the invention is to establish an arrow (

  cantilever arms) of the type indicated in the introductory

  so that it can be detached from the hook of the retaining arm as the boom pivots in a substantially perpendicular direction

  to the management of progress that also thanks to a

  sitif arranged on the arrow at any moment with

  a substantially horizontal arrow.

  This objective is achieved in accordance with the

  thanks to the fact that the device for detaching

  the boom of the holding arm has an actuating member

  hydraulically, pneumatically or electrically, who or

  well acts directly or indirectly through the intermediary

  lever on the retaining arm so that

  it is caused to be placed substantially parallel to the arrow, or causes the catching elements of the arrow to rotate so that the retaining arm is detached from

the arrow.

  The hydraulic cylinder according to the invention serves

  the detachment of the boom and the retaining arm is arranged substantially parallel to the boom. It can be placed laterally with respect to the latter or also, if the boom has a hollow structure, in

  In the simplest case, the cylinder h;

  It may be provided with a support plate acting di-

  directly on the retaining arm, so that the arm is moved and brought parallel to the boom, so that the hook of the retaining arm is detached from the

  catch hooks of the arrow Hais one can also imagine

  to operate the hydraulic cylinder on a device

  a lever that acts again on the retaining arm or to which the catch elements with the boom are fixed. In the latter case, when the boom or cantilever arm and the retaining arm are detached, the relative position of the two arms remains the same, whereas

  on the other hand, the position of the gripping elements is

  bound, so that the hook of these gripping elements,

  which are shaped substantially V-shaped can glide

  externally downward or upward

  positive according to the invention allows to retain the shape of the gripping elements of the arrowq as it is used in a conventional manner, so that this arrow

  can also be used conventionally, that is,

  To say that the follower remains at the place where the plow has been raised. But, thanks to the device arranged in addition, it is also possible to let the follower member rest at any point in the field, which is the same. 12 particularly pliable plows or also in wedge-shaped or triangular fields for the reasons that have

have been indicated above.

  The invention will be better explained and understood

  by the following description of several examples of

  realization, given for information only, with reference to the attached drawings among which:

  FIG. 1 is a view from above of the arrangement

  sition of a follower, driven by an arrow; FIG. 2, another exemplary embodiment

  such an arrangement, in which the hydraulic cylinder

  it acts directly on the retaining arm; FIGS. 5 and 5 illustrate another embodiment in which the hydraulic cylinder acts by means of a lever device on the retaining arm;

  Figure 6 shows another example of how

  tion in which the hydraulic cylinder acts by

  lever on the hooks of the safety arm

  FIGS. 7 and 8 show another embodiment in which the hydraulic cylinder acts on a lever at the end of which the catching elements of the boom are pivotally arranged; FIG. 9 is a detail of FIG.

  Figures 10 and 11 show another example.

  full realization with gripping elements arranged

  pivoting on the boom, the possibility of pivoting

  these elements can be removed by a locking pin actuated by the hydraulic cylinder

  Figure 1 shows, by way of example,

  follower member 1, a combination of

  A two-way clutch roll comprising two sweeping rollers 2, 3 and a compacting roller zk Rollers 2 to 4 are mounted in a frame 5 of the follower member so as to be able to rotate to the front frame portion 6 and to the

  part of the rear frame 7 are connected arms

  retainers or fasteners 8 and 9, each through the

  perpendicular to a vertical articulation 10, llo After 15 vertical articulation 10, 11 a horizontal axis 12

  puts an unlimited pivoting of the arms 8, 9 upwards.

  But the possibility of pivoting arms 8, 9 downwards is limited, so that they have a defined position relative to the solo At the front end of each retaining arm 8, 9 is disposed a roller or roller 14, 15 whose axis

  16,17 makes an acute angle with the arm 8,9, the axis is

  obliquely on the end of the retaining arm 8,99 so as to form, between the latter and the axis, an angle smaller than 90% On the roller 14 which forms a counter-support in the form of a hook, s apply rod elements from

  taken from an arm cantilever or arrow 19 not

  represented, the arrow being connected to a machine

  such arrows 19 in door-to-false are gen-

  mounted on reversible plows and must ensure automatic coupling and disengagement

  retaining arms of follower members 1.

  With the known arrows, the attachment arm 8,9 of the follower member 1 is detached from the arrow when the

  towed machine, which is usually a reversible plow

  as noted in the Trilateral Treaty.

  However, it is advantageous in many cases to

  the detachment of the boom with the retaining arm is possible when the towed machine is still in its normal working position. For this purpose, in the arrow 19 which is provided digs in

  this embodiment, a heat cylinder was

  Hydraulic cylinder 20 is mounted with possibility of pivoting within 1 '.

  age 19, established hollow, at point 21 The age is closed on the

  The front end of a plate 22 having a notch 235 through which the piston rod 24 of the hydraulic cylinder 20 passes. On this piston rod 24 is mounted, outside the boom 19, a rotary pressure plate 25, which is located facing the retaining arm 8, and the latter, during the exit excursion of the piston of this hydraulic cylinder, is applied on the arm

  retaining and releases the roller 14 of the arm 8 out of the

  18 of arrow 19 The shape of these ele-

  The gripping rod has, in view from above, a V shape in which the roller 14 fixed on the hook 26 bears against the top of the elbow O

  During the excursion of the hydraulic cylinder 9

  that is, when feeding the pressure line 27 with pressurized oil, the pressure plate 25 is pushed against the boom 8, so that the relative spacing of the boom 19 and of the retaining arm 8 is increased and that the roller 14 is pushed out

  18 During the exocursion, an accu-

  pressure booster 28 is loaded, which brings back the eylin-

  hydraulic position in its starting position once

  the uncoupling of the follower member has been performed.

  In the embodiment according to FIG. 39

  the counterparts are provided with the benchmarks.

  The hydraulic cylinder 20 is hingedly connected, in this embodiment example, to a bracket 29 at point 30 e. The piston rod 24 of the hydraulic cylinder 20 is articulated on a lever 31 which can be pivoted to its position.

  turn around an axis 32 disposed on the arrow

  free of the lever 31 carries a roller 35 which cooperates with a plate 34 welded to the boom On the lever 31 is

  further mounted a V-shaped stirrup 35 which

  rer that, even in the oblique positions of the boom, the retaining arm 8 is firmly pushed relative to the boom and thus the follower member is uncoupled from the boom The return of the hydraulic cylinder to its starting position acts in this embodiment,

  on a traction spring 36 which is fixed with articulated

  on the one hand on the lever 31 and on the other hand on the arm

traction 19.

  The embodiment shown in FIG. 6 differs from the preceding one essentially in that the lever 31 does not act on the retaining arm, but directly on the hook 160. When the hydraulic cylinder 209 is actuated the plate 37 on the lever 31

  bs'applique against the front side of the hook 16 and

  It pushes the latter away from it in the vertical direction of the boom 19, so that the follower member is detached from the boom. The hydraulic cylinder return 20 in the starting position is produced by a spring 36.

  In the exemplary embodiment according to the

  7 to 9, the homologous parts are designated by the same references. The hydraulic cylinder 20 is again hinged to a bracket 29 of the boom 19. By means of its piston rod 24, the hydraulic cylinder acts on a lever.

  31 at the free ends and opposite of which the cro-

  The catch hooks 18 are arranged on the hooks of

  a guide 38 is mounted in sheet metal, which is shown in phantom in its position after pivoting and, in this position after pivoting, it takes a certain inclination with respect to the direction of advancement, so that the hook can slide In FIG. 9, the inclination in the di-x rection of the arrow X is seen. When the retaining arm is coupled, the hydraulic cylinder must always be under pressure, that is to say It must be maintained in its position where it has been pulled out If the retaining arm has to be uncoupled, the pressure is removed in the supply line 27 and the piston of the hydraulic cylinder is retracted into the cylinder under the effect of the spring. As a result, the elements 18 reach the position 18 'and the hook of the retaining arm can

  slide out of the socket elements.

  The embodiment of FIG. 8 differs from that of FIG. 7 in that the engagement elements 18 are arranged with respect to the axis j 2 of the lever 351 so that a moment is exerted on the lever 51, which tends to rotate it in

  counterclockwise In this po-

  the lever can be maintained only by the tension spring 36 Here the hydraulic cylinder

  must not be fed with oil under pressure.

  To detach the gripping elements, pressurized oil is supplied to the hydraulic cylinder 20 through the conduit 27 until a force is exerted through the retaining arm on the lever 31.

  exercising on the latter a moment in the direction of

  guilles of a watch If this is so, the point

  hinge 39 of the hydraulic cylinder 20 on the con-

  sole 29 can be shifted down a hole

  longitudinal axis 40 provided therein, so that the

  the pivoting of the lever is produced exclusively

  by the effect of the force of the retaining arm on the gripping elements 18 The stroke of the hydraulic cylinder

can be here very small.

  In the exemplary embodiments according to the

  7 to 9, the pivoting of the lever was carried out around

  axis that was directed perpendicular to the arrow

  In the exemplary embodiment according to FIGS. 11, the axis 32 about which the lever 31 pivots is parallel to the arrow 19. On the lever 31, the engagement rod elements 18 are arranged at the free end of the lever. this lever, as has been described also with reference to Figures 7 to 9 The other end 51, which is constituted, as shown in Figure 10, with a flat shape, has a bore 41 in which passes, in the position locked, a 42 stud that is connected

  to the piston rod of the hydraulic cylinder 20 The cylinder

  20 is a single acting cylinder which

  is brought into its starting position by a

  The hydraulic cylinder is slidably held at its other end in an elongated hole 44, the offset being effected against a spring 45 whose other end is

  on a plate 46 disposed on the arrow 19.

  In others on the axis 352 a lever 47 is mounted with the possibility of pivoting, this lever bearing at its end a weight 48 The lever 47 has two heels 49, 50 at the ends of which are mounted two bolts 51, 52 The bolts 51 52 cooperate with a projection 53 disposed on the arrow 19 Because of the cooperation

  of this protrusion 53 with the bolts 51, 52, the possibi-

  The pivoting position of the lever 47 about the axis 42 is limited. Two lugs 54, 55 are fixed on the lever 310.

  These lugs 54, 55 cooperate with the lever 47, and so

  that a pivoting of the lever 47 by applying the er-

  549 55 against it causes the pivoting of the

  The lever 31 on which the gripping elements 18 are attached has its weight distributed so that the lever 31 tends to rotate in a counterclockwise direction. On the other hand the lever 47 is calibrated so that it executes a rotational movement in the

clockwise direction of the hands.

  If the arrow must be uncoupled from the arm of

  retained, pressurized oil is fed through the con-

  27 to the hydraulic cylinder 20, so that the governor

  jon 42 is driven out of the hole 41 Generally, by

  following the effort exerted by the follow-up body on the

  grips 18, the lever 31 will have turned in the opposite direction

  milking clockwise, so that the

  chet 16 can slide down out of

  -5 se 18 So the lever 47 is raised After that the le-

  47 is rotated by the gripping elements 18 and by

  following the lever 31 in the clockwise direction of a

  and this until the stud 42 can enter

  new in piercing 41 e To ensure this, the pres-

  duct 27 is already removed when the

  The patient must return by pivoting to his or her starting position.

  The stud 42 has thus taken up again its position of de-

  on the other hand, as can be seen in Figure 11 *: despite this

  lock, the stud 42 must be able again to

  calf resting in the hole 41 To obtain this result,

  tat, the hydraulic cylinder 20 rests with possibility

  movement on a spring 45 and its end is guided

  in an elongated hole 44 Spring forces 43

  and 45 are adapted to one another so that the res-

  fate 45 is weaker than the spring 43 which brings the

  piston 56 in its starting position This is therefore

  bine so that the piston 56 back in the cylinder to

  its starting position when removing the pressure

  transmitted by the conduit 27, the spring 45 which

  found in the piston compressing the spring 45.

  As a decoupling mechanism, we can use

  not only a hydraulic cylinder, as has been shown in the embodiment, but electromagnetically or mechanically operable latches can also be used.

RETENDICATIONS

  1 Cantilever arm or boom with pulling element for towed machines ensuring the automatic coupling and uncoupling of the retaining members retaining arms, which have at their free ends a hook directed laterally and cooperate with the elements of catching the boom, which is provided with a device which allows the detachment of the boom

  with the retaining arm characterized in that the dis-

  positive allowing the detachment of the arrow (19) of.

  with the retaining arm (8,9) has an organeaction-

  pneumatic or electric hydraulic element (20) which acts directly or indirectly via a lever (31) on the retaining arm (8, 9) so that

  this one is moved to come to be substantially pa-

  is connected to the boom or causes the catch members (18) of the boom (19) to rotate so that the holding arm (8 X 9) is detached from the boom (19) o:

  2 Arrow according to claim 1, characterized

  in that the actuating member (20) is a cylinder

  which is attached to a bracket (29) mounted on the boom (19) and placed substantially parallel to

  said boom (19) 9 in that the other end of the cylinder

  hydraulic actuator (20) actuates a lever (31) fixed with

  on the boom (19) lever whose length is determined so that its free end (539 35 57)

  cooperates with the retaining arm (8 9).

  Arrow according to claim 2 characterized in that at the free end of the lever (51) is mounted a roller (33) cooperating with the retaining arm (8, 9).

  4 Arrow according to claim 2 or 53,

  characterized in that on the lever (31) a V-shaped yoke is attached which extends perpendicularly to the lever

(31) where

  Arrow according to claim 1 or 29, characterized in that the free end of the lever (31) acts

  on the hook (16) mounted on the retaining arm (8 9).

  Arrow according to one of claims 1 to 4,

  characterized in that the hydraulic cylinder (20) is disposed in the interior of the boom (19), which is hollow.

  7 o Arrow according to claim 6, characterized

  in that a pressure plate (25) is mounted on

  the piston rod (24) of the hydraulic cylinder.

  Arrow according to claim 1, wherein

  characterized in that the hydraulic cylinder (20) is hinged to a bracket (29) fixed to the boom, in that

  Another end of the hydraulic cylinder is

  mity of a lever (31) and in that at the free end of the lever (31) the gripping elements are montéso

  9 Arrow according to claim 8, characterized

  In fact, the gripping elements (18) are, in the position after pivoting, inclined with respect to the

direction of advancement.

  The arrow according to claim 8 or 9,

  in that the lever (31) takes, in the position

  working, substantially a neutral position (

gure 8)

  11. The dryer according to claim 10, characterized

  in that the hydraulic cylinder is guided in the bracket (29) in a longitudinal hole (40)

  12 Arrow according to claim 1, characterized

  characterized in that the gripping elements (18) are pivotable about an axis (32) extending substantially parallel to the arrow and that the possibility of pivoting of the gripping elements can be locked by a latch (41, 42)

  which can be actuated by the hydraulic cylinder.

  13 Arrow according to claim 12, characterized

  in that the lock is constituted by a stud (42)

  which enters a bore (41) formed in the lever

both the gripping elements (18) o

  14 Arrow according to claim 12 or 13,

  characterized in that a lever (47) loaded with a weight (48) is freely pivotable about an axis (32), lever

  whose possibility of pivoting is limited by

  gots (54, 55) serving on it, against-supports.

  Arrow according to one of claims 12 to

  14, characterized in that the lever (51), in the working position, is tared so as to execute, under the effect

* gravity, a pivoting in the opposite direction of

  guilles of a watch and the lever (47), a pivoting

  in a clockwise direction.

  Arrow according to one of claims 12 to

  characterized in that bolts (51,52) are

  placed on the lever (47) and cooperate with parts

  (53) of the arrow, so that the possibility of

  the lever (zk 7) and consequently that of the lever (31) are limited relative to the arrow (19) 3

  17 th Arrow according to one of claims 12 to

  16, characterized in that the end of the heat cylinder

  hydraulically (20), spaced apart from the piston rod (24) 9 is guided in an elongated hole (44) contrary to the force

a spring (45).

  Arrow according to one of claims 12 to

  17, characterized in that the force of the retaining spring (43) in the hydraulic cylinder (20) is selected more

large than that of the spring (45).

  Arrow according to one of claims 1 to

  18, characterized in that the hydraulic cylinder (20) acts simply and in that for its return to its starting position a spring (36, 43) or a working accumulator (28) is used.

  Arrow according to claim 7, characterized

  in that the pressure plate (25) is pivotable.

  21 Arrow according to claim 9, characterized

  characterized in that the gripping elements (18) are provided with a guide formed in the t 8 leo