FR2464635A1 - SUPPORT SYSTEM FOR AGRICULTURAL MACHINERY - Google Patents

Abstract

THIS SUPPORT SYSTEM, USABLE FOR AGRICULTURAL MACHINES, IN PARTICULAR FOR THE HARVESTING ASSEMBLY OF A HARVESTER-CHOPPER, INCLUDES AT LEAST ONE STAND 357 THAT CAN PIVOT AROUND AN AXIS BETWEEN A TRANSPORT POSITION IN WHICH IT IS RAISED AT - BELOW THE MACHINE AND A SUPPORT POSITION, THIS STAND CAN BE LOCKED IN THESE TWO LIMIT POSITIONS. ACCORDING TO THE INVENTION, THE AXLE AT THE SAME TIME CONSTITUTES A LOCKING PIN. IT IS SHAPED BY A J-PIECE PRESENTING A LONG BRANCH FORMING PIVOT, ON WHICH THE STAND 357 IS PIVOTALLY MOUNTED AND A SHORT BRANCH ACTING AS A LOCKING PIN.

Description

1.

  Support system for agricultural machinery.

  The present invention relates to a support system for agricultural machines or parts of machines, in particular for the removable harvesting assembly of chopper harvesters, comprising at least one crutch capable of pivoting about an axis in a console to be brought from a transport position placed under the machine into a support or support position,

  and lockable in these two limit positions.

  In support systems of this type, it is necessary first to release a locking device in order to be able to pivot the stand from its transport position to its support position or

  Conversely. To be able to release the locking device

  illage, you have to extract a locking pin or similar device from a hole, then re-engage it in a

another hole.

  The object of the invention is to provide the locking device for the support system in a way

  simpler than it has been so far.

  This is achieved, according to the invention, by the fact that the axis is in the form of a locking pin. In this way, the axis around which the stand can pivot from its limit positions forms with the locking pin a unitary member, and it thus always remains on the machine, so that it cannot be lost, qu '' he cannot disengage himself from service and neither does he need

  to be locked or blocked in an additional way.

  According to the invention, the axis has a J shape, comprising a long branch and a short branch, the

  long branch serving as a pivot for pivot mounting-

  crutch in its console, while the plug

  short che serves as a locking pin.

  According to the invention, the console is provided with two holes or holes in which the locking pin

  can engage in its limit positions. Of this ma-

  the stand can, in the transport position, rest on the locking pin, while in

  the support or support position, this pin of ver-

  rusting can further engage in a hole provided in

the crutch.

  Since the pivot branch is movable in antagonism to the action of a spring and the transverse part connecting this branch to the locking pin constitutes a handle, the pin

  lock can be released from the hole provided for its re-

  ception in the console in antagonism to the force of

  spring, the stand can then be brought by pivot-

  In its other limit position, the spindle

  rusting which can then be automatically anchored in the corresponding hole combined with the other limit position.

  The description which follows, made opposite

  annexed drawings, given without limitation and showing a known harvester-chopper and an embodiment of the invention, will allow a better understanding

the latter.

  Fig. 1 shows a conventional type chopper with a three-row harvesting assembly,

  as well as a two-row harvesting set.

  Fig. 2 shows a harvesting set with four

rows arranged according to the invention.

  Fig. 3A shows the transport corridors of the harvesting assembly according to FIG. 2, with the belts,

  chains or the like, in perspective.

  Figs. 3B and 3C are views taken in reg-

  in the direction indicated by the arrows 3B and

3C in Fig. 3A.

  Fig.4 is a plan view corresponding to Fig.2. Fig. 5 is a plan view corresponding to the

Fig. 2, but with partial section.

  Fig. 6 is a sectional view through the arrow 6-6

  in Fig. 5, certain organs having been removed for ease

liter representation.

  Fig.7 is a side view corresponding to Fig.2, taken looking in the direction indicated by the arrows 7-7 in Fig.5 Fig.8 is a side view corresponding to

  Fig. 7, taken looking in the direction of the arrows

ches 8-8 in Fig. 7.

  In the following description, expressions

  such as "forward, backward, vertical, horizontal, side-

  ral "have been used. These expressions refer to the normal working position of the machine and its direction of travel. The expressions" left and right "refer equally to the direction of travel of the machine.

  machine, assuming you're standing behind it.

  In Fig.1 of the drawings, there is shown a harvester-chopper 10 of conventional type, equipped with a

  three-row harvesting set 13, as well as a set

  two-row harvest wheat 15. The chopper harvester is used with its harvesting sets 13 and 15 for the harvest of mals, sorghum, sugar cane and plants with similar stems. The harvesting assemblies 13 and 15 are mounted on the harvester-chopper 10 interchangeably, and reference will be made, for example, to the construction details in the patent.

  United States of America No. 3,701,239.

  chopper 10 is provided with an inlet orifice 17 generally having a rectangular shape, which covers the entire width between the opposite side walls 19,20. Two feed rollers 23 arranged transversely and spaced from one another in the vertical direction are provided in the inlet orifice 17. The harvesting assemblies 13, 15 are mounted as indicated interchangeably on the harvester. chopper 10 and are equipped for this purpose with coupling or coupling devices of the conventional type, as described in particular in United States patent no. 3,791,117. Behind the supply cylinders 23, provision is made another pair of feed rollers, so that the products can be fed into the machine backwards between the upper and lower feed rollers, in order to reach organs

grinding (not shown).

  The invention itself will be described in connection with a

  four-row harvesting assembly, as shown

  felt for example in Fig. 2 This assembly is designated

  in this Figure by the reference 25. We understand easily

  ment that the characteristics of the invention can also be used on harvesting assemblies intended to work on a higher number of rows

or less than four.

  The harvesting assembly 25 can also be

  suitable for harvester-chopper 10, and it is inter-

  changeable compared to harvesting sets 13 and 15.

  This harvesting assembly 25 further comprises, as shown in FIG. 2, five dividers 27, 29, 31, 33 and 35, which extend generally in the direction of travel, which converge in the direction of the back and which are tilted down and forward. To facilitate understanding, these dividers will be designated below by first, second, third, fourth and fifth dividers, going from right to left. The dividers 27, 29, 31, 33 and 35 have cowlings 37, 39, 41, 43 and 45, which terminate in point forward. In service or during work, these points slide on the ground between two rows or lines of plants with stems to be harvested, in order to be able to separate the lying or folded plants. The cowlings provide smooth upper surfaces, allowing the plants to slide in the rearward direction on the surface of these cowlings and finally reach via an outlet orifice 44 at one end 46 of the frame of the harvesting assembly 25 and thus at the inlet 17 of the chopper 10. The distance between the dividers 27 and 29 provides a transport corridor 47 which in principle extends in the direction of travel and which is inclined upwards and towards the rear, for plants or harvested products, forming an inlet 48 and an outlet 55 for the products. Similarly, a second transport corridor 49 is provided which has an inlet 50 and an outlet 55, which is identical to the transport corridor 47 and which is located between the dividers 29 and 31. A third transport corridor 51, provided with an inlet 52 and an outlet 57, is provided between the dividers 31 and 33, and a fourth transport corridor 53 provided with an input 54 and an outlet 57 and corresponding to the transport corridor 51 is provided between dividers 33 and 35. All these transport corridors 47, 49, 51, 53 converge towards the rear, since the width of a four-row harvesting assembly is, at its front part, considerably greater

to that of the inlet 17.

  In the case of the embodiment shown, the entrances 48, 50, 52 and 54 of the transport corridors are spaced 75 cm apart when considering their median parts in order to be able to receive plants with stems

  1s for which the spacing between the rows is equal

  75 cm. The width of the inlet orifice 17, that is to say the distance between the side walls 19 and 20, on the other hand only represents 55 cm. Transport lanes 47 and 49 converge towards each other and intersect at exit 55, while transport lanes 51, 53 meet at exit 57. Exits 55 and 57 are approximately 18 cm forward

from the inlet 17. -

  Two positively driven guide rollers or cylinders 59 and 61 are provided on either side of the outlet orifice 44 and participate in guiding the stem plants resting on the outer cowlings

  to the machine inlet.

  An upper guide device 60 is connected to the upper part of the end 46 of the chassis and

  also helps direct the stem plants towards the ori-

  input 17 in a position such that their end

  cut mites enter this opening first.

  More particularly, the plants or products transported in the transport corridors 47, 49, 51, 53 bear by their upper end against the guide device, until the cut ends are taken up by the cylinders or rollers

  23 inside the inlet 17.

  In Fig.3A, the harvesting assembly 25, has been shown in perspective, the dividers 27, 29, 33 and 35 having however been removed, so that one can see pairs of transport members 63, 65 67 and 69 arranged in the same plane and inclined downward and forward, these members being shown here schematically. These bodies are designated here again by the expressions first, second, third and fourth carriers. Fig. 4 is a similar view

  in which, however, parts of the cape can be seen

  tage, the front dividers 27, 29, 31, 33, 35 having been removed. The first pair of conveyors 63 comprises an external chain or an external belt 71 and an internal chain 73, which are provided on either side of the transport corridor 47. These chains have

  an inner strand which is parallel to the trans-

  port 47, for gripping the products and for ensuring their transport backwards to the outlet 55. In a similar manner, the pair of conveyors 65 has an outer chain 75 and an inner chain 77, which are here again arranged on either side of the second

  transport corridor 49. The third pair of transport-

  teurs 67 is also provided with an internal chain 79 and an external chain 81, which are placed on opposite sides of the third transport corridor 51, while the fourth pair of transporters 69 comprises an internal chain 83 and an external chain 85, which likewise are arranged on either side of the fourth transport corridor 53. The technician specialized in this field easily understands that instead of the chains, one could

  also use belts or other trans-

  carriers. Each chain 71, 73, 75, 77, 79, 81, 83 and 85 which is shown diagrammatically, has a main component which is clearly longer and wider than it is thick, and it is thus represented under a

substantially planar shape.

  The carriers of each pair are arranged

  between them and the first and second payment

  res of carriers 63 and 65 are arranged in parallel planes while on their side the third and

  the fourth pairs of carriers 67 and 69 are also

  placed in parallel planes. In addition,

  pairs of carriers 63 and 65 are inclined transversely

  badly compared to the horizontal and compared to the pairs of carriers 67 and 69, which on their side are

  also inclined transversely to the ho-

  rizontale. This inward tilt position is particularly visible in Fig. 3B and 3C. The planes of the carriers intersect along lines which are arranged in a vertical plane and which are themselves on the median longitudinal axis A-A. We also see in Fig; 3B that the plane B defined by the pair of conveyors 63 forms an angle C of approximately 6.50 with a horizontal line D-D. Similarly, the plane E in which the pair of carriers is located

  69 done with the horizontal D-D ulX angle F of about 6.5.

  Although this is not shown, it will be noted that the lateral inclination of the pair of conveyors 65 is equal to that of the pair 63, and that the latter also makes an angle of 6.50 with the horizontal D-D. Similarly the lateral tilt of the pair of

  carriers 67 is equal to that of the pair of trans-

  carriers 69, so that its plane also makes an angle 6.50 with the horizontal D-D. Lateral tilt

  relative of carrier pairs is an important factor

  so that four rows of stem plants can reach the relatively narrow inlet 17 of the chopper, and it brings together

  the transport corridors 47, 49, 51 and 53 of the metro axis

  dian A-A of harvester set 13, which was not

  the case with transport corridors of the an-

  since these were all in one

  same horizontal transverse plane. Of course, the an-

  tilt, lateral, which are indicated on the

  Fig. 3B can be modified, and in this case the

  ment of outputs 55 and 57 is also modified.

  Another important characteristic, which aids in the concentration of four rows of crop products towards a conventional outlet orifice 44, resides in the fact that the pair of conveyors 65 is arranged above the pair of conveyors 63 and partially overlaps it, and also in the fact that the pair of carriers 67 is located above the pair

  re of carriers 69 and partially overlaps it.

  Two characteristics are used to allow the

  overlap of the carrier pairs on the left side

  che and that of the pairs of carriers on the right side.

  The first feature is the design

  drive system, and more special

  Lely in the chains 77 and 73 have

  a common drive shaft 102, while the cats-

  nes 79 and 83 have a common drive shaft 51. The second characteristic resides in the fact that the rear end of the chain 75 ends clearly in front of the neighboring chains 71, 73 and 77, and in the fact that the rear end of the chain 81 ends mre clearly in front of the neighboring chains 79, 83 and 85. In the case of embodiment considered, the

  overlay and overlap of a pair of trans-

  carriers compared to the pair of carriers

  sine were pictured for a harvest set

  four rows. It is however obvious that this

  also can be used in the case

  three-row harvesting sets.

  Each chain constitutes an endless band in the form of a loop and its drive members include front guide or return shafts and rear drive shafts. The front return shafts and the rear drive shafts provided on the left side of the harvesting assembly 25 are in principle parallel,

  and the front idler shafts and the drive shafts

  rear right side are likewise mainly

  cipe parallel between them. The chain 71 forms an endless loop 87 and passes over a rear drive shaft

  89 and on a front idler shaft 91. The drive shafts

  undercarriage and deflection 89 and 91 carry a gear wheel

  drag 93 and a return wheel 95 respectively, so that the loop-shaped chain can be moved by traction by the drive and return shafts 89 and 91. The particular constitution of the endless loop 87 itself is known , as described in US Patent No. 3,339,354. More particularly, it can be seen in FIG. 4 that the chain 71 is designated by 93 and passes over a drive wheel 93 and over a return wheel 95. A

  belt 99 is connected to chain 97 at certain inter-

  valleys, so as to form corrugations directed towards the outside, which penetrate into the transport corridor 47 and which engage in corrugations of a similar belt 101. This is connected to a chain 104 which corresponds to the chain 73. The arrangement of the endless closed loops corresponding to the other chains 75, 77, 79, 81, 83 and 85 is likewise of the conventional type and it is identical to that indicated for chains 71 and 73. A

  additional description therefore seems unnecessary. Good

  of course, the arrangement of these bands in the form of endless loops may be different, as described for example

  in U.S. Patent 4,106,270.

  It will also be noted that, instead of the chain drive system, another drive mode can also be used. As shown in FIG. 3A, the chain 75 is associated with an endless loop-shaped band 107, which passes around a rear drive shaft 109 carrying a drive wheel 111 and a drive shaft

  forward gear 113 carrying a gear 115. The end

  rear half of the chain 75 is clearly in front of the rear end of the neighboring chains 71, 73 and 77,

  so that the transport lanes 47, and 49 overlap

  slightly forward of the inlet 17.

  The chain 77, which cooperates with the chain 75, is likewise provided with an endless belt in the form of a loop 117 which passes over a front deflection shaft 119 carrying a deflection wheel 121 and over a drive shaft

  rear 102 carrying a second drive wheel 123.

  The latter is coaxial with the drive wheel 103

  mounted on the same shaft, so that the drive shaft

  drag 102 ensures the joint training of the two

chains 77 and 73.

  The right side of the harvesting assembly 25 is symmetrical to the left side and will therefore not be described in detail. Chatnes 85, 83, 81 and 79 are likewise provided with bands in the form of loops 125, 127, 129 and 131 which pass around return shafts which are in principle parallel to one another 133, 135, 137 and 139 carrying wheels of reference 141, 143, 145 and 147, and around drive shafts in principle parallel to one another 149, 151, and 153, carrying drive wheels 155, 157, 159 and 161. Owing to this arrangement of chains , the transport corridors 51 and 53 intersect, so that the harvested products or stalk plants thus transported converge a little in front of the inlet orifice 17. Thus, during the work of the machine, four rows of stalk plants enter the transport corridors simultaneously, two of the rows of stalk plants routed in lanes 47 and 49 converge in front of the inlet orifice 17. The two remaining rows of plants join themselves forward of the inlet 17 after their routing in the lanes 51 and 53. Then, to all stem plants from the right and left sides of the set

  harvest together enter the inlet 17.

  Yet another advantage of the arrangement of the conveyors at a transverse inclination

  and with a vertical offset, as well as with an overlap-

  lies in the fact that the inclinations trans-

  versales can be studied so that the carriers terminate at their front end in a common transverse plane, as can be seen in Fig.3A, and they can also have the same distance from the ground. This appears in Fig. 3C. As will be described in more detail later, this arrangement of the front ends of the conveyors

  is important for mounting the mechanisms or

  cutters 163, 165, 167 and 169 near their 11.

front end.

  The conveyor drive systems are shown in detail in Fig. 5 and 6. To facilitate the representation, the rod dividers 27, 29, 31, 33, 35 and the wheels have been removed in Fig. 5. training, the loop-shaped bands and the

  front deflection shafts being represented only in fa-

  schematic lesson (in dashed lines). In addition, the covers or covers of the waterproof casings in which

  the drive mechanisms are provided have been sup-

  award-winning. Fig.6 is a sectional view through line 6-6 in Fig.5. If we consider the right side of the harvesting assembly 25, we see that the rear drive shafts 149, 151, and 153 are provided with

  pinions of coaxial inputs 173, 175, and 177 which are

  wind below the drive wheels 155, 157 and

  159. Likewise, provision is made in the mechanism for

  pair of conveyor pairs 67 and 69 an input pinion 179 for driving the

  section 167 and 169. An intermediate mechanism 181, equi-

  pe of intermediate gears 185 and 187, couples the input gears 173, 175, 177 and 179. This intermediate mechanism 181 and the input wheels 173, 175, 177 and 179 are mounted in a sealed casing 189 and are driven, as visible in FIG. 6, by bevel gears 191 and 193 which, for their part, are housed in a suitable casing 195. The bevel gear 191 is then mounted coaxially on an input shaft 197 which,

  for its part, is coaxially connected to the drive shaft

  rear 149 by a coupling hub 196.

  The drive mechanism for the pairs of trans-

  carriers 63, 65 is symmetrical to that provided for the pairs of carriers 67 and 69 so that it will not be described in detail here. The drive shafts 89, 102 and 109 are connected to input pinions 201, 203 and 205 and are coupled to an input pinion 207 for driving the cutting devices 163 and 165 via '' an intermediate mechanism 209 which

  has intermediate gears 211 and 213.

  In this case again, the input and intermediate gears

  are housed in a second sealed casing 215, the drive

  ment being ensured by two bevel gears (which for clarity are not shown in the drawings) housed on their side in a suitable casing 217. The two sets of bevel gears are interconnected and

  are driven simultaneously by a main shaft 219.

  This is itself trained through a

  coupling 221, which, here again, is connected to the mechanical

  drive of the harvester-chopper 10, which has not been shown for clarity. Of course,

  the drive mechanism formed by pinions can also

  also be replaced by a chain wheel mechanism

or similar.

  It should also be noted that the arrangement of the drive mechanism, with the input gears, provides a

  compact, centralized and coaxial layout not only

  also for transfer drive devices

  carriers, but also for driving the cutting devices, the members being able to be easily mounted in a sealed casing, so that maintenance is very reduced and the service life is increased. Likewise, this arrangement allows easy access to the mechanisms

  when a repair or intervention

maintenance is required.

  It can be seen in FIG. 4 that the cowls 37, 39, 41, 43 and 45 are provided above the chains 71, 73,, 77, 81, 83 and 85. More particularly, the cowl 39, which covers the chains 73 and 75 and which forms by right side soh one side of the transport corridor 49, is provided with a rear point 171 which is in principle above the rear end of the loop-shaped band 107 of the chain 75 and which ends in the vicinity of the point of intersection of the transport corridors 47 and 49. This point 171 cooperates with sinuous belts or bands 117, so that the plants with stems are positively conveyed in the transport corridor 49 beyond the end of the endless loop-shaped band 107, to the point of intersection of the transport corridors 47 and 49 at the end of the point 171. Plants with stems which have reached this zone can then easily enter the inlet orifice 17 by crossing the orifice of S outlet 44. In an ana manner log, the cowling 43 is provided with a rear point 172 which likewise cooperates with the endless belt in the form of a loop 131 to ensure positive transport of the plants with stems through the transport corridor 51, beyond the end endless belt in the form of a loop 129, up to the point of intersection of the transport corridors 51 and 53 in

  the part corresponding to the rear tip 172 for-

  mant the exit 57. Thus, the rear points 171, 172 participate in the positive routing of the products of

  harvest in a manner avoiding any jamming these pro-

  duits being routed through the transportation corridors

  port 49, and 51, although the endless bands in the form of loops 107 and 129 end clearly in front

  endless bands in the form of loops 117 and 131.

  We see in Fig. 2 and 3A that the two wheels

  leaux or guiding cylinders in principle vertical 59 and 61, which have recesses are arranged in front

  the walls 40 and 42 and extend upward relative

  port to cowlings 37 and 45. The upper ends of these guide rollers 59 and 61 are retained in

  tabs in the vicinity of the upper guide device

  laughing 60. In the case of the embodiment represented

  tee, the spacing between the peripheries of the rollers

  guide directly above the transport corridors 47 and 53 represents approximately 58 cm, while the gap

  between the peripheries of the guide rollers directly below the upper guide device is approximately 48cm. This means that the axes of the guide rollers are inclined slightly upwards and inwards relative to each other. This inclined arrangement of the guide rollers 59 and 61 makes the plants tend to slide down and rest on each other in a denser manner, so that they can more easily penetrate the orifice 'inlet 17. As already indicated the width of the inlet 17, is in the case of the embodiment shown of about 55cm

  and the guide rollers 59 and 61 are arranged directly

  in front of the side walls 19 and 21 of the orifice

  input 17, so that they allow co-

  inherits the plants by suspension just before their penetration into the inlet orifice 17. The guide rollers 59 and 61 (Fig.3A and 6) have shafts (one is not shown and the other is designated by 225) which extend downwards from these guide rollers and which are connected coaxially to the drive shafts 89, 149 of the chains 71 and 85. Thus, the guide rollers 59 and 61 are driven in the same direction of rotation as the endless belts in the form of loops 87 and 125, so that the inner sides

  guide rollers rotate towards the rear

  re. During work, the stem plants are

  quées by the inner side of the guide rollers when they leave the transport corridors 47, 49,

  51 and 53 so that this results in another narrowing-

  ment in the transverse direction and that the transfer of the products in the inlet orifice 17 is favored. In addition, since the drive shafts 89, 149 are inclined relative to each other, the products still undergo a slight tilting movement towards

up and forward.

  As seen in Fig.2, the upper guide device 60 extends forward from the

  walls 40 and 42 of the end 46 of the chassis. This provision

  sitive has two guide arms 231 and 233 different

  leading towards the front, as well as a trans-

  median versal 235 to which these guide arms 231 and 233 are connected. Similarly, a guide member 237

  triangular in shape is connected to this cross-section

  dirty 235. The guide arms 231 and 233 of which disposed above and parallel to the dividers 27 and 35. The guide member 237 is arranged above

  divider 33 and is similarly parallel to the latter.

  This guide member and the guide arm 233 direct the upper end of plants with erect stems which are in the transport corridors 47 and 49. They direct the plants inwards when the cut ends of these plants converge towards the up and back inside the transport corridors. Likewise, the guide member 237 and the guide arm 231 direct the upper ends of the plants with erect stems which are in the transport corridors 51 and 53. They deflect these plants inwards while the cut ends of these converge

  up and back in these trans-

  Harbor. When the upper ends of the tick plants reach the transverse part 235, a further rearward movement of these upper ends

  is prevented, while carriers of all

  dormice continue to advance the curved ends

  plant swords. As a result, these cut ends penetrate first into the outlet port 44, then into the inlet port 17. The middle guide member makes

  that the four-row harvesting assembly is actually di-

  aimed in two halves acting independently of each other. It cooperates with transport corridors 47 and 49 so that the stems in the two transport corridors on the left side converge

  together, and it does the same in cooperation with the couples

  transport files 51 and 53 to converge the plants of the two corridors located on the right side before all of the stem plants enter the orifice

input 17.

  In Figs. 5 and 3C, there are shown the cutting devices used to cut the plants when they penetrate.

  in transport corridors 47, 49, 51 and 53. These devices

* cut positives are designated by 163, 165, 167 and 169 and

  have reciprocating blades which are available

  placed below the entrances 48, 50, 52, 54 of the transport corridors 47, 49, 51 and 53, substantially in the area

  in which the plants or products are attacked or re-

  taken by carriers. As already indicated above, the arrangement of the carriers allows the cutting devices 163, 165, 167 and 169 to be provided jointly in a vertical transverse plane at the same distance from the ground. In this way, a uniform cutting height and regular transport are obtained. Furthermore, it will be noted that each cutting device is parallel to the plane of the conjugate conveyor, that is to say that the plane

  cutting is parallel to the plane of this conveyor.

  The particular arrangement of the cutting devices 163, 165, 167 and 169 is described in the French patent.

no 80-17275.

  Since the cutting devices are all

  identical, only the dis-

  positive cutting 163. It consists of two main fixed blades 241 and 243 and a reciprocating blade 245 mounted between them. Since the blade 245 is movable relative to the main blades 241 and 243, a cutting action similar to that obtained is obtained.

that of scissors.

  2C A 247 drive mechanism for use

  Cutting agents are shown in Figs. 3C and 5. It

  consists of a first rod 249 animated by a mold

back and forth, which extends between the gear

trée 207 of the cutting device and the cutting device 165 itself. A second rod 251 is provided between the cutting devices 165 and 163 and ensures a synchronous reciprocating movement. A pivoting mounting of the rod 251 on the cutting device 163 is made possible by

  a pivoting arm 250 which is connected to an axis 253 of the device

  cutting sitive. A pivoting connection of the rod 251 with the cutting device 165 is made possible by the

  swivel connection of the rod 251 with the first extremi-

tee 257 of an elbow lever 255 which is itself connected to the axis 256 of the cutting device 165. A pivoting connection of the rod 249 with the cutting device 165 is in turn obtained by a pivoting connection of this rod 249 with a second end 261 of the bent lever 265. A pivoting connection of the rod 249 with the input pinion 207 is made possible by means of a pivoting arm 263 which is connected to the input pinion 207 and which can rotate with him. In use, the input pinion 207 rotates, so that the rod 249 is driven back and forth in principle in the longitudinal direction of the harvesting assembly 25. When the rod 249 is moved backwards, the bent lever turns clockwise if you consider Fig. 5. The movement in the direction

  bent lever schedule 255 moves a blade 264 of the disc

165 cutting positive rigidly connected to the 256 axis

  clockwise and also moves rod 251 to the right with respect to Fig. 5. Due to the movement to the right of the rod 251, the pivoting arm 250 rotates clockwise with respect to FIG. 5, so that again the blade 245 which attacks the pivoting arm 250 via the axis 253 is moved clockwise. Under the effect of the forward movement of the rod 249, the bent lever 255 and the pivoting arm 250 move clockwise, so that the

  blades 264 and 245 rotate themselves counterclockwise

schedule. The cutting devices 167 and 169 have a drive mechanism 270 which is identical to the drive mechanism 247 and which will not be described in more detail here. It follows from the above that the

247 mechanism ensures simple and trouble-free drive

gements of two spread blades, driven in a reciprocating motion, which are in turn arranged at a certain distance from a casing 215. The mounting of the casing 189 at a certain distance from the cutting devices

163 and 165 is all the more interesting since the

elements of all elements of the harvesting assembly can

thus be provided in the vicinity of the rear side of this set

  ble, so that one can have recourse to this place to a sealed sealed mechanism housing. The rear arrangement of the mechanism housing has still other advantages, namely the fact that this housing can be placed in the immediate vicinity of the drive mechanisms of the carriers and that the distance to the ground is sufficient, so that it is possible to '' to access it in a simple and easy way to

maintenance and repairs.

The frame of the harvesting assembly is made up

by several auxiliary chassis mechanically connected

  be them. For this purpose, refer to Fig. 5.

  The chassis of the harvesting assembly comprises the casings 189 and 215, the end 46 of the chassis and several chassis of dividers inclined downwards and forwards 301, 303, 305 and 307. The casings of mechanisms 189 and 215 form the central auxiliary chassis for the harvesting assembly and are connected together mechanically by screws 309 and 311. The end 46 of the chassis comprises two arms 312 and 313 extending forward, which are connected to the outside of the casings 216, 189 with the chassis of dividers 301 and 307. More specifically, the arm 312 and the chassis of divider 301 are connected to the mechanism housing 215 at points 315, 317 and 319. In a similar manner, the arm 313 and the divider chassis 307 are connected to the mechanism housing 189 at points 323,

325 and 327.

The divider frames 303 and 305 are further connected to the forward-facing sides of the housings 215 and 189. In more detail, the divider frame 303 is connected to the mechanism housing 215 at points 329, 331, 333 and the divider frame 305 is connected to the mechanism housing 189 at points 335, 337 and 339. Furthermore,

the divider frames 301 and 303 are mechanically connected

lying together at one or more points, like point 321, and the frame of dividers 305 and 307 are mechanically connected together at one or more points, like

point 340.

It is understood that the auxiliary chassis must be joined mechanically at the various points considered. The

  connection points shown in the drawings are not

  only kill a representation of the principle of fixation. The number of fixing points and their precise position can of course deviate from what is shown in the drawing. The fixing is carried out, in the embodiment considered, by means of screws, but it goes from

We can use equivalent means for this purpose.

slow. It follows from the above preceding description, the modular construction of the chassis of the harvesting assembly allows dimensional precision and simplicity which have the effect of reducing manufacturing costs, in particular in comparison with a welded construction. A support system serving to support the rear end of the harvesting assembly 25 when it is not coupled to the harvester-chopper 10 is shown in FIG. 5. It consists of two legs 351 and 353 which

  1C are connected to the lower surface - divider chassis

  sisters 301 and 307. They are here in their transport position. The foot 351 is symmetrical with the foot 353, so that it will suffice to describe this foot 351 in detail. In FIG. 7, the foot 351 is shown when looking from

-5 the left side of the harvesting assembly 25, in the direction

tion indicated by line 7-7 in Fig.5 and Fig.8 shows the foot 351 when looking in the direction indicated by line 8-8 in Fig.7. More specifically, the stand 351 comprises a console 355 provided with plates 360 and 359 which, for their part, are connected to the divider frame 301. A stand 357 is provided.

  between the plates and can pivot freely between a po-

transport position raised and lower support position

  lower, the limit positions being shown in solid lines and in broken lines on Fic. 7. The console 355 is further provided with a stop 358 against which the

  stand 357 can be applied in its position of ap-

  well. In addition, this stand 357 is provided with a sole 363 yes has a Plane base 361 and a flange 362 surrounding this base on all sides. The rim 362 reduces the friction of the stand 363 with respect to the ground when the harvesting assembly must be aligned with the harvester

chopper for its coupling.

The stand 351 is further equipped with a locking device 365 by which the stand 357 can be locked in its support position and in its transport position. This locking device is used at the same time for pivoting mounting of the stand 357 in the console 355. The locking device 365 has, 2C generally, a J shape and has a first branch forming a pivot 367, which serves upon pivoting mounting of the stand 357 in the console 35, and a second branch forming a locking pin 369, by which the stand 357 can be immobilized at will in its transport position or in its support position. The locking device 365 is also provided with a spring 371 rui surrounds the branch forming a pivot 367 and which is applied at one end against a 1C stop 373. The stop 373 is, in the example shown, constituted by a washer which is arranged coaxially on the pivot branch 367, a pin 375 being

  introduced through this branch forming a pivot 367.

  As is better visible in FIG. 8, one end of the spring 371 is pressed against the inside of the stand 357, while the other end of this spring 371 is pressed against the washer 374, so that the branch forming pivot 367 is pushed to the right if

we consider Fig. 8.

  The locking device 365 can be pivotally moved between a locking position for transport, as illustrated in solid lines in FIG. 7, and a locking position for the support condition, which is shown in phantom in Fig. 7. In the locking position for transport, the locking pin 369 is introduced through a hole 377 in the plate 359, so that a

  side of crutch 357 can be applied against it.

In this way, the stand is held in the transport position. In the locking position in support, the locking pin 369 is introduced through a hole 379 in the seat 359 and through a hole 381 in the stand 357, so that this stand is retained

in the support position.

  During work, when the harvesting assembly 25 is coupled to the chopper 10, the crutch or crutches 357 is or are retained in the transport position. When it is necessary to separate the harvesting assembly from the harvester-chopper 10, this assembly

  25 is lowered hydraulically by means of

  diary of hydraulic cylinders (yes are not shown

  on the drawing), until reaching a position in the-

at which its front end comes into contact with the ground.

The locking device 365 is then moved by hand to the left with respect to FIG. 8, in opposition to the action of the spring 71, so that the locking pin leaves the hole 377. When the locking pin 369 is recalled back, the stand 357 falls into its support position against the stop 358 under the effect of gravity. This crutch 357 is then immobilized in this position by rotation of the locking device 365 around the pin forming a pivot 367, counterclockwise, relative to the crutch 357 and to the console 355, until it is aligned with hole 379. The locking device 365 can then be released and, under the effect of the spring 371, the locking pin 369 automatically penetrates into the holes 379 and 381. The harvesting assembly is then raised again until 'that the crutches come into contact with the ground. As soon as this condition is

reached, the locking members which connect the end

half of the chassis with the front side of the harvester

  chopper 10 can be released.

  In order to be able to re-couple the harvesting assembly 25 with the harvester-chopper 1C, the latter is brought into a coupling position as close as possible to the rear end of the harvesting assembly 25. A

  precise alignment of the harvesting assembly 25 with the ma-

3C china can rest assured that this set is de-

  easily placed back and forth on its crutches. This movement is facilitated by the fact that flanges 362 are provided. The height of the crutches 357 is chosen so that the vertical alignment of the end 46 of the chassis with the front side of the chopper-harvester allows reclosing of the locking members by which the harvesting assembly 25 is coupled to

1C harvester-chopper.

  The support system is particularly simple,

  given that a single ornane per-'and the rontace 'pivots-

  ment je le béqu2ille 357 and its lock. Given that the crutch 33D7 falls from the transport position into its down position, under the effect

  O of gravity after the release of the ver-

  rusting, this can be removed with one hand

  pulling on it and making it level in the anti-direction

  clockwise, then releasing it into its locked position

  lage for its engagement in the support position.

1C Since the locking device serves at the same time for the pivoting trontaq of the stand, any danger of losing a locking pin disappears. he goes from

  if such a locking device is used

sand not only on the chopper harvesters, but 1 everywhere where a part of a basic machine has to be placed and rested on the ground, for example in the

case of industrial machines.

  Modifications can be made to the embodiment described, in the field of equivalences

  2C techniques, without departing from the invention.

Claims (5)

  1.- Support system for aariculture machines, in particular for the removable harvesting assembly of chopper harvesters, comprising at least one beacon pivotally mounted around an axis in a console in order to be able to pivot between a transport position in which it is located under the machine and in a support position, this stand can be locked in these two limit positions, characterized in that the axis (375) around which the stand can pivot is arranged so as to constitute at the same time a locking pin   ge. 2.- support system according to claim 1, characterized in that the a: e (375) has a J shape and has a long branch and a short branch, the long branch serving as a pivot (367) for mounting pivoting of the stand (357) in the console (355),   while the short branch serves as a locking pin ge (3-69).   3.- Support system according to claim 1 or 2, characterized in that the console (355) is provided with two holes (377,379) in which the locking pin   Age 369 can engage in its limit positions.   4.- Support system according to any one of previous claims, characterized in that the   pivot branch (367) is movable in antagonism to the action of a spring (371).   5.- Support system according to any one of   previous claims, characterized in that the par-   transverse tie connecting the pivot branch (367) and the locking pin (369) is under the shape of a handle.