FR2496404A1 - - Google Patents

Abstract

HARVESTING MACHINE OF THE TYPE INCLUDING AT LEAST ONE RAKING ORGAN DRIVEN IN ROTATION AROUND AN AXIS DIRECTED UPWARDS, SUCH RAKING ORGAN BEING EQUIPPED AT ITS PERIPHERY WITH A PLURALITY OF GROUPS OF TEETH CONSTITUTED OF AT LEAST TWO TEETH EACH SUPERIMPOSED, GROUP BEING MOUNTED IN A WAY TO BE ABLE TO PIVOT FREELY AROUND AN AXIS PRACTICALLY TANGENTIAL TO THE PERIPHERY OF THE RAKING BODY THE SAID GROUPS OF TEETH BEING PUT IN A WORKING POSITION BY THE CENTRIFUGAL FORCE. EACH TEETH GROUP HAS A LOWER 105 RIGID TEETH, THE UPPER TEETH (S) BEING FLEXIBLE.

Description

The invention, entering the field of working the earth, relates to a

  device for working with plants on the ground, including at least one rotor, arranged so that it can rotate

  about a substantially vertical axis of rotation.

  According to the invention the device comprises members for raking and / or spreading plants carried by said rotor which can rotate

  about a substantially vertical axis of rotation.

  Other objects and characteristics of the invention appear

  will derive from the description below with reference to the accompanying drawings, which

  represent, by way of nonlimiting examples, some forms of

  realization of the device according to the invention.

  In these drawings: FIG. 1 shows, in plan, the machine in the working position and in the transport position; Figure 2, a rear view of a part of the machine; Figure 3, a vertical section of a part of the chassis and a rotor; Figure 4 shows parallel to the axis of rotation, in plan, part of a rotor, provided with mowing members; Figure 5, a partial vertical and horizontal section of the construction according to Figure 4; Figure 6, a horizontal view of a portion of a rotor, provided with a mowing member; FIG. 7, a horizontal view of part of a rotor, provided with a second embodiment of a mowing member; Figure 8, a radial view of a portion of a rotor, provided with a mowing member; Figure 9, a plan view along arrow IX of Figure 8; Fig. 10 represents, parallel to the axis of rotation,

  part of a rotor, provided with a combination of a flawed organ

  cheur-rfteleur; Fig. 11 represents, radially, a part of the rotor according to FIG. 10; Fig. 12 is a partial view of part of a rotor, provided with a combination of a mower-rake member;

  Fig. 13 shows part of a rotor according to Figs.

  at 12, but without raking member; Fig. 14 represents parallel to the axis of rotation,

  part of a rotor, provided with a combination of mowing organ-

  r & teleur, with a third embodiment of the mowing member; Fig. 15, a horizontal view of part of a rotor according to FIG. 14; Fig. 16, a horizontal view of part of a rotor, provided with a second embodiment of a combination of a mowing member and r & teleur member; Fig. 17, a horizontal view of the structure according to FIG. 16 with a combination of mowing and raking device folded down

in transport position.

  The frame of the machine or device consists practi-

  only a fixing part 1 and a supporting part 2 (Fig. 1 and 2). The carrying part 2 itself comprises a carrying bar 3, located at least partially above an arm 4. The chassis of the machine is fixed to the rear of a tractor and to the two lower arms 6 and 7 of the lifting device

  of a tractor 5, as well as an axis 8 of this lifting device.

  The length of the axis 8 can be adjusted so as to change the position of the machine relative to the tractor. To the support bar 3, two rotors 9 and 10 are fixed, which can rotate around axes of rotation 11 and 12 (Fig. 1), arranged at a distance from each other. These axes of rotation are parallel to each other, directed upwards and are both oriented parallel to a vertical plane, located in the direction of travel A. During operation, they are arranged practically vertically or inclined so that a part located higher of each of these axes of rotation, seen in plan and with respect to the direction of advance, is located in front

  a lower part of the rotor.

  At the front of the fixing part 1, a goat 13 is rigidly fixed, by means of which the machine can be fixed to the lifting device of the tractor. Goat 13 has the shape of an inverted V or U and at its two ends, located 1l

  lower down, it has pins 14 and 15, which are

  troduits in holes, formed in the lower arms 6 and 7, while near the upper point of the goat 13, are f: xed two vertical legs 16 and 17, arranged at some distance from each other. Holes are provided near the front ends of the legs 1 and 17 which adjust to the rear end of the connecting rod 8 of the tractor lifting device 5, 1 <legs 16 and 17 starting at their attachment to the goat 13 , at least in plan view, parallel to the rear and, deprofi they incline from the goat 13 downwards, up to the upper part of the fixing part 1, to which they are fixed by welding. In plan view, one end of the chèi 13 almost coincides with the opposite end of the rotors! and 10, of the fixing part 1, so that this extremil of the fixing part 1, seen in the direction of advance A, substantially coincides with the rear end of the lower arm

  6 of the tractor lifting device.

  The fixing part 1 consists practically of a prismatic ba-shaped sheath with a rectangular section whose longitudinal axis is situated horizontally and, seen in a fold perpendicular to the direction of advancement A. The gold end: rotors 9 and 10, of the fixing part 1 arrives approximately at the vertical delimitation plane, situated on the side of the sorter 5 and directed in the direction of travel A, of the tractor. The opposite end of the rotors 9 and 10 , of the part of fixatJ 1 (in the form of a sheath) is closed by a partition 18 which, vi in plan, exceeds at some distance behind, the line of del:

  rear mitation of the fixing part.

  At the upper part and at the lower part of the fixing piece 1, and near the end facing the torsors 9 and 10, supports 19 and 20 are arranged to fix the arm 4 (Fig. 1 and 2). Each of the four supports 19 and 20 is

  consisting of a practically trapezoidal plate, of which an ex-

  end is fixed to the fixing part 1 and the other end

  comes out of the fixing part I..The two supports 19 are direct

  managed perpendicular to the axes of rotation 11 and 12 and, seen pa-

  parallel to these axes of rotation, they stand one above the other and in such a way that one end of the two supports, relative to the direction of travel A, protrudes in front of the

  fixing part 1. For the two supports 20, it is practi-

  similarly, if only their free ends, compared

  port to the direction of advancement A, protrude behind the

  fixing tie 1. Holes 21 and 22 are provided near the free ends of the four supports 19 and 20, so that the axes of these holes are directed perpendicular to the plane of which said plates are parallel, the axes of holes 21 in the two supports 19 and the axes of the holes 22 in the two supports 20 also being located in the extension one of

  the other. A practically vertical plane passing through the axes, if-

  killed in the extension of one another of the holes 21 and by the axes located in the extension of one another of the holes 22, partially coincides with the extreme plane, located very close to the chassis bar 1 in the form of a sheath. With respect to the direction of travel A and with respect to the vertical plane of symmetry of the tractor 5, the supports 19 and 20 are inclined forwards and backwards outwards from their attachment to the upper part of the fixing part 1. The axes passing through the two holes 21 and the two holes 22 are parallel to each other, and lie in a vertical plane, situated in the direction of travel A; they are directed parallel to the axes of rotation of the rotors 9 and 10. The arm 4, which is located in the extension of the fixing part 1 is connected, so as to

  be able to turn, to the fixing part 1 by a pin 23, in-

  troduit in the two holes 22, and by supports described more

  in detail, attached to arm 4. In order to place arm 4 in the po-

  sition where it is located in the extension of the fixing part

  tion 1, you can insert a removable locking pin

  24 in the two holes 21. The structure and dimensions of sec-

  tion of the arm 4 are identical to those of the fixing part

  1. The arm 4 is connected to the pin 23 by two supports 25, if-

  killed one above the other. The spindle, in plan view, is finished

  xed near the end, located on the side of the fixing part 1, of the arm 4 and relative to the direction of advance A and in the direction of the position of the fixing part 1, it projects obliquely towards the back. At the front of the arms 4, two supports 26 are fixed, located one above the other and which, relative to the direction of travel A, project forward

  and obliquely in the direction of the tractor 5 in front of this arm.

  In the four supports 25 and 26, holes are also provided, which correspond to the holes 22 and 21 of the two supports

  and 19 and whose axes, at least in the operating position-

  ment, coincide with those of holes 22 and respectively 21.

  The length of the arm 4, located perpendicular to the di-

  advancement rection A, is about 55 to 60% of the length of the fixing part 1. The arm 4 is entirely outside the neighboring vertical delimitation plane, located in the

  direction of travel A, of the tractor 5. At some distance from the ex-

  end, opposite the fixing part 1, of the arm 4, we have

  placed both at its front and at its rear, a vertical plate-

  27, located parallel to a vertical plane, perpendicular to the direction of advancement A. Near the end, located below the lower part of arm 4, of these plates, there are arranged

  holes, whose coincident axes are directed along the di-

  travel direction A and perpendicular to the direction of the axes

of rotation of rotors 9 and 10.

  At the opposite end to the fixing part 1 of the arm 4, is fixed a support 28, in the shape of L, so that the two wings of this support are parallel to a horizontal and vertical plane, whose line of intersection mutual is horizontal and in the direction of advancement A. In the horizontal wing 29 of the

  support 28, a hole 30 is formed, the axis of which is situated parallel

  the axes of rotation of rotors 9 and 10.

  The support bar 3, located parallel to the arm 4, is fixed to the latter so as to be able to rotate, this is why a plate 31 has been fixed both to its front and to its rear and in such a way that these plates coincide perpendicularly to the axes of rotation 11 and 12 and in the direction of travel A. The strips or plates 31 are located parallel to a plane passing through the axes of rotation 11 and 12 and have a distance

  mutual such as the lateral planes, facing one another

  of these bands have a slightly greater mutual distance

  re to the distance between the lateral planes, opposite one to the other

  tre, plates 27, the latter being located at least partially, between the plates 31. Near the ends opposite to the support bar 3, of each of the plates 31, is formed a hole, the axes of which coincide and are located in such a way that they

  are directed in the direction of travel A and perpendicular to

  direction in the direction of the axes of rotation Il and 12 of the rotors 9 and

  10. The bands 31 are located in such a way around the ban-

  of the 27, that the axes of the holes of the bands 31 coincide with those of said holes of the lower part of the bands 27. In these

  four holes, is introduced a pivot axis 32, directed

  vant the direction of advance A and located perpendicular to the axes of rotation of the rotors 9 and 10. Thanks to the axis 32, the carrier bar 3 can rotate relative to the fixing part 1 and

  on the arm 4. Plan view, the carrying bar 3 is partial-

  lie below the arm 4 and so that, seen in plan, 65% in-

  approximately the length of the carrying bar 3 exceeds the arm 4 of the

  side opposite to the fixing part 1 and which, seen according to the di-

  advancement rection A and in plan, is completely below

  outside the tractor boundary 5. The axis of rotation of the ro-

  tor 9 is supported by the support bar 3, near its extremi-

  tee turned towards the fixing part 1, the axis of rotation of the rotor 10 also being supported by the support bar 3 near

  its end opposite to the fixing part 1 and to the arm 4.

  The axis of the rotation shaft 11 of the rotor 9 intersects the pivot axis

  tement 32 perpendicularly. Seen in plan, the axis 32 is disposed at a distance of 25 to 30% of the length of the arm of the end of the latter, on the side opposite to the fixing part 1. At the upper part of the support bar 3 , a spindle 33 is fixed, the axis of which is oriented practically parallel to the

  axes of rotation of rotors 9 and 10; this pin is introduced

  te in the hole 30 located above formed in the horizontal wing of the support 28, the length of this pin 33 projecting over a

  certain distance above the upper plane of the horizontal wing-

  support 28 and up to a corresponding practical height

  ment to the upper plane of the fixing part 1 and to that arm 4. The pin 33 is largely surrounded by the hole 30. In turn, this part of the pin 33, which projects above the horizontal wing 29 of the support 28, is disposed a spring 34 which, at the lower part, is supported on the upper plane: of the wing 29 and which, at its upper part, is pressed against] lower part of a spring ring 35 , this ring being held in its place by an upper nut 36, disposed on the upper end, provided with thread, of the pin 33. By taking the nut 36, the tension of the spring 34 can be adjusted. The weight of the support bar 3 and that of the rotors 9 and 10 can be supported by the arm 4 via the axis of p.

  vote 32 and spring 34. It is also possible to fix.

  spindle 33, so that it can turn, at the top: of the load-bearing bar 3. In plan, the spindle 33 is located between

  the axes of rotation of the rotors 9 and 10.

  On the upper part of the arm 4, a pivoted axis 38 is arranged, the axis of which coincides with the extension of the rotation 11 of the rotor 9. Near the upper part of the pivot 37 is fixed a- support 38, which can rotate from the axis 37 and also relative to the axis 37 upwards i downwards around a second pivot axis not shown and which is oriented perpendicular to the axis 37. The length : of the support 38 is slightly greater than the total radius of the rotor 9 including the working members, fixed to this rotor. At the end opposite the pivoting axis 37 of the support 38, is fixed a rod port 39, indicated in dotted lines in FIG. 2, oriented from the support 38 downwards and making an angle of envi: 1200 with this support. The lower end of the support 39 is curved at an angle of about 90 and in a certain direction from the pivoting axis 37. This curved lower extra tee forms a sliding rod 40 and makes a plan view, a small angle with the extension of the support 3 (figure 1). On the rod support 39, there is arranged a certai: number of relatively thin spring steel rods 41 which are directed parallel to the sliding rod 40. The rods have in turn a different length and together they form a plane guide for plants to be moved. The axis, pivoting 37 is partially surrounded in a coaxial direction

  by an adjusting member 42, which has the shape of a cylindrical part

  drique and which is intended to adjust the direction of the support 38 relative to the direction of the arm 4. Thus, the adjusting member 42, plate-shaped, is provided at its upper part with a certain number of 'recesses 43 in the form of a niche, in which the support 38 can be adjusted during rotation about the axis

  pivoting 37 and said second pivoting axis not shown. The par-

  upper tie of the adjusting member 42 as well as the recesses 43 are located at a level lower than the point of attachment of the support 38 to the pivoting axis 37. The dimensions of the support 38 and those of the rod support 39 are such that, when the support 38 is placed in one of the recesses 43, the sliding rod 40 is in contact with the ground and can slide on the ground during operation, so as to be able to rotate freely up and down. The position, indicated by dotted on

  Figure 2, corresponds to the transport position or a po-

  where plants can be spread, while the extreme

  lower part of the rod support 39 rests on the bar

  teuse 3. This position will therefore be applied both in the

  position indicated in dotted lines in FIG. 1, of the bar

  teuse, only in the working position, indicated by solid lines.

  A second guide member with parts corresponding to parts 37 to 43 of the guide member described above, is fixed above the rotor 10 and from the structural point of view it

  is completely analogous. Only one point of difference is tra-

  duit by the fact that the guide member disposed above the rotor 10, is fixed to the upper part of the support bar 3, so that the sliding rod corresponding to the sliding rod 40, which can also slide on the ground so

  to be able to freely rotate up and down, the di-

  mensions are not exactly identical, because the point of fi-

  xation is located at a lower level from the ground. In po-

  transport position and in the position where the plants are spread, the lower end of a rod support 45, fixed

  to a support 44, rests on the upper part of the arm 4.

  Seen from behind and in the middle between the pins 14 and 15, there is fixed to the lower part of the fixing part 1, a

  gearbox 47, in which two gear units have been placed

  swims 48 and 49, which are engaged with each other, such

  so that the axis of rotation of the gear 48 is located ho-

  horizontally and approximately in the direction of travel A, the axis of the rotation shaft of the gear 49 being directed pra-

  horizontally and the extension of this tree

  pant the axis of the rotation shaft of the gear 48. The gear 49 is arranged so that it is located on the side of the arm

  4 of the gear 48, so that an intermediate axis telescoping

  that 50 can be connected by a universal joint, on the axis of the gear 49. At its end opposite to the gear box 47, the intermediate axis 50 can be connected by a universal coupling, to a box of gears 51, arranged on the end

  facing the fixing part 1, of the support bar 3.

  The intermediate axis 50 can be connected, as desired, to two axes

  different inputs, from gearbox 51. The two ro-

  tors 9 and 10 can be driven, all two at the same time, by the axis exiting from the gearbox 51. The transmission ratios of the gears, located in the gearbox 51, are such that during engine speed normal starting point of the axis exiting the tractor, this axis being able to directly drive the gear 48 via an intermediate axis and the speed of rotation of which will be approximately 540 revolutions per minute during operation, the speed of the axis exiting 51 , when driving an incoming axis 52 of the gearbox 51, such that the two rotors 9 and 10 both rotate at approximately 1500 and 2000 revolutions per minute, the speed of the rotors 9 and 10 having to be around 240 revolutions per minute, if the intermediate axis 50 is

  connected to the incoming axis 53 of the gearbox.

  Near the attachment of the rotor 10, there is disposed at the rear of the carrier bar 3, another attachment piece 54, which is U-shaped, in plan view, and the wings of which are provided with holes located in the extension one of the other. The place of the fixing piece 54 is such that, during the rotation of the

  arm 4 and of the load-bearing bar 3 around the pin 23 (posi-

  dotted line in FIG. 1), the fixing piece 54 in

  U shape fits precisely at the rear end of the enclosure

  its extreme 18 which comes out backwards, from the fixing part

  1. Near this rear end of the partition 18, is mena-

  ge a hole so that in this hole and in the two holes of the wings of the fixing piece 54, one can introduce a locking pin 55 (which can be identical to pin 24), fixing the arm 4 and the support bar 3 together, as shown by the dotted position in FIG. 1, with respect to

to the fixing part 1.

  The drive of rotors 9 and 10 is explained further in

  detail using Figure 3. The outgoing shaft 56, directed

  in the longitudinal direction of the load-bearing bar 3 and located inside this bar, of the gearbox 51, carries, at its end situated near the axis of rotation 57 of the rotor 9, a bevel gear 58 engaged with a bevel gear 59,

  disposed on the upper end of the axis of rotation 57.

  The outgoing shaft 56 rests, using bearings 60 and 61, in

  internal partitions 62 and 63 of the support bar 3, available

  seated vertically and oriented in the direction of advance-

  ment A. The bevel gear 59 is in turn engaged with a bevel gear 64, disposed on the end situated on the side of the axis of rotation 57, of a drive shaft 65, of which 1V axis is located in the extension of the axis of the outgoing shaft

  56. The drive shaft 65 drives the rotor 10 as does the

  outgoing bre 56 drives the rotor 9. Near its end located near the axis 57, the drive shaft 65 rests by a bearing 66, disposed in a partition 67, parallel to the partitions 62

and 63. -

  Directly below the gear 59, the axis of rotation

  tion 57 is provided with an axial bearing 68, itself enclosed in the middle of a transverse partition 69 of a support member 70; the latter is intended to fix the direction of the axis of rotation 57 relative to the support bar 3. Thus, the support member 57 is provided, at its upper part, with a circular bearing edge 71,

  which surrounds the transverse partition 69 and forms a whole with this-

  the partition and which, at its periphery, is provided with bolts 72

  at regular distance from each other and with which the

  support gane 70 is fixed to the underside of the bar

  teuse 3. At some distance below the bearing 68, the axis of rotation 57 is still supported by the support member 70 and it by a bearing 73, belonging to the member 70. The distance between the bearings 68 and 73 corresponds approximately to the width of the carrier bay 3, plan view. The bearing 73 is disposed near the lower extreme plane of the support member 70. The app member 70 may have, as shown in Figure 3, the shape of a truncated cone or pyramid, the most subtle extreme plane, located perpendicular to its axis of symmetry, is located at said distance below the largest extreme plane, which is parallel to it. It goes without saying that the support member 74 can also be constructed in the form of individual rods rn connecting the bearing 73 to the support edge 71, these rods along the axis of the axis of the rotation shaft 57 directed down, etanl arranged so as to converge mutually. At short distance below the bearing 73, a bushing 74 is arranged in the coaxial direction around the axis of rotation 57 and by a tig it is firmly fixed to the axis of rotation 57. At the upper part of the sleeve 74 is welded an annular plate 76 which is located directly under the lower part of the bearing 73. The annular plate is arranged in the direction c axial relative to the axis of the rotation shaft 57 and has a diameter approximately equal to the total length of the axis of rotation 57. The annular plate 76 may be completely full from the sleeve 74 to its outer edge, but may also include an annular rim connected to the sleeve 74 pa rays. At the upper part of the plate 76 is fixed a cylinder 77 in the form of a plate, situated in the coaxial direction with respect to the axis of the rotation shaft 57 and whose diameter is approximately half the diameter of the plate 76. This cylinder 77, which serves as protection against fouling, is mine at the height of the support edge 71 of the support member 70; the diameter of the support edge 71 is a little less than the diameter of the cylinder 77, the support edge 71 still being located partially in the cylinder 77. An annular collar 78 is still arranged at the lower part of the support bar 3 , whose 1 inside diameter is a little greater than the outside diameter of the cylinder 77 and whose lower edge encloses the upper part of the cylinder 77 for some distance axially The height of the cylinder 77 is approximately equal to 40% of the length

total of the axis of rotation 57.

  At the bottom of the annular plate 76, a number of tubular spokes 79 have been placed,

  six, in this case at regular distances from each other.

  The direction of the rays 79 is such that their axes are located on a conical surface, the apex of which is above

  the plate 76 on the axis of the rotation shaft 57 and the li-

  a symmetry coincides with the axis of the rotation shaft 57.

  At the lower part of the spokes 79 is fixed a rim 80 also annular, the outside diameter of which is approximately

  1 1/2 times as big as the total length of the axis of ro-

  57. The annular rim 80 is parallel to a plane, located perpendicular to the axis of the rotation shaft 57. The rim is supported, for example directly by spokes not drawn on the axis of rotation 57. The distance between the plaque

  annular 76 and the rim 80 is approximately equal to 40% of the length

  total length of the axis of rotation 57. Near the tip

  lower of the axis of rotation 57 a bowl 81 is arranged,

  so as to be able to rotate, on the axis of rotation 57. The

  lower part of the bowl 81 consists of a support plate 82, which has the shape of a part of a sphere whose center is

  located above the bowl 81 on the axis of the rotation shaft

  tion 57. The support plate 82 is provided with a socket 83,

  located in the coaxial direction around the axis of rotation

  tion 57. In the enclosure between the outer contour of the axis

  57 and the inner wall of the socket 83 are

  placed axial bearings 84, by means of which the cup 81 can rotate freely around the axis of rotation 57. Near the upper part of the sleeve 83 is welded an upper plate 85, directed perpendicularly to the axis of rotation

  57 and arranged in such a way with respect to the support plate

  port 82, that the circular outer surface of the support plate 82 and that of the flat upper plate 85 are fixed to each other along their contour, so that the bowl 81 is completely closed at its upper part . The

  diameter of the upper plate 85 and that of the upper plate

  port 82 are identical and slightly less than the diameter of the rim 80. At its periphery, the rim 80 has a collar 86, directed downward, approximately leading to the upper part of the upper plate 85. The inside diameter of the collar 86

  is slightly larger than the outside diameter of the top plate

  85. The rotor 10 has a completely ana-

  log to that of rotor 9. The starting structure described below can be provided

  of alternative working bodies, i.e. different series

  machines with different types of

  work or each series fitted with inter-

  changeable of different type, but also provided with a combination

  sound of different working bodies. In the examples of rea-

  As an example, mowing devices,

  raking bodies and a combination of the two.

  In the exemplary embodiment according to FIG. 4, the two rotors 9 and 10, which can rotate in opposite directions, are provided with mowing knives 87, the bands, trajectories described by

  the knives of the two rotors, overlapping in the middle and cha-

  cun being disposed, by removable bolts or rods 89, on a support 88. The support 88, seen parallel to the axis of rotation 57, is fixed respectively near the edge of the rim of the rotors 9 and 10; from this attachment, it is oriented radially outward during operation and in this plane, it has a practically rectangular shape. The

  mowing knife 87 (thickness approximately equal to 1 mm) is available

  dried in a recess in the upper part of the support 88,

  so that this mowing knife in the radial direction,

  passes the outer edge of the support 88 and also, in comparison

  port in the direction of rotation B, the front of the external part of the support 88. At its end facing the axis of rotation

  57, the support 88 is connected to the rim 80, so that

  see turning around two axes. Near the rim, the support-

  ment 88 has a hole in which a pivot axis 90 has been introduced which perpendicularly intersects the axis of rotation 57 and is arranged, with respect to the outer edge of the rim 80,

  near this outer edge and also tangentially with respect to

  port to this one. Thanks to two supports 91, located on each side of the support 88, the axis 90 is fixed to a plate-shaped support 92 (Fig. 4 and 5), which is like the annular rim, parallel to a plane, located Perpendicular to the axis of rotation 57. The support 92 can rotate relative to the rim 80 about a pivoting axis 93, located parallel to the axis of rotation 57 and intersecting perpendicularly the axis 90. A plane passing through the axis of the rotation shaft 57 and the axis of the shaft. pivoting 93 forms, seen parallel to the axis of rotation 57, by approximation, a plane of symmetry for the support 88 in the operating position. Seen in the horizontal direction and

  parallel to the axis of the pivot shaft 90, the edge

  94 of the support 88 is inclined approximately from the outside edge of the support 92 downwards and outwards and

  leads to the mowing knife 87. We have this position of the edge

  94 during normal operation and the point, the most inward and which is also the highest of the lower edge 94 of the support 88 comes into contact with the outer edge of the support 92, so that the support 88 and the mowing knife 87 can be supported while stopping

  rotors at this location on the support 92 and thus on the rotor.

  In this stopped position, the mowing knife 87 is situated at the level of the desired height to be cut above the ground. The support 88 has a boss 95 near the pivoting axis 90 and especially above this pivoting axis in the operating position (Fig. 4 and 5) the side, which is turned the most towards the axis of rotation 57 , of the mowing knife 87, is at a certain distance from the axis of the rotation shaft 57, which is about 1.4 times as great as the distance from the axis of

  the rotation shaft to the outer periphery of the jan-

  te 80 (the latter is the largest radial dimension of the rotor, knives and support not included). The total diameter of the rotor, including the mowing knife 87, is equal to

  approximately 1.7 times the diameter of the outer edge of the rim 80.

  The whole mowing knife 87 is therefore at some distance

out of rim 80.

  During operation, the incoming axis, on which the

  conical shot peening 48 is fixed, is coupled, by an intermediate axis

  diary 50, to the axis coming out of the tractor 5. Via the gears 48 and 49 of the axis 50, of the incoming axis 52 or 53 of the gear boot 51, of the outgoing axis 56 of the gear boot 51, the rotating movement of this outgoing axis is transmitted to the axis of rotation 57 of the rotor 9, and respectively through the bevel gear 59, the gear 64 and the axis drive 65, this movement is transmitted to the axis of rotation of the rotor 10. To put the machine in the transport position, the locking pin 54 is removed and the arm 4 and the load-bearing bar 3, including the rotors 9 and 10, around the axis of the spindle 23, until the holes, made in the fixing part, coincide with the hole, arranged in the end

  rear of bulkhead 18, so that the pin locks

  ge 55, which can be identical to the locking pin 24,

  can be inserted into these holes, thus preventing rotation

  tion of the turned parts with respect to the tractor, during transport. If the arm 4 and the load-bearing bar 3 are in

  working position, the support bar 3 can rotate in a

  re elastic with respect to the arm 4 around the pivoting axis 32,

  and the position of the support bar 3 can be adapted to the irre-

  ground regularities thanks to the structure of the spring 34 (Fig. 3).

  This change in position of the support bar 3 relative to

  the fixing part 1 and to the arm 4 is triggered by the

  tact between the two bowls 81 and the ground. During this contact,

  the bowls 81, especially if the axes of rotation 57 are inclined

  born around. up and forward, can rotate freely with respect to the axis of rotation 57. During operation, the sets of support 88 and mowing knife 87, six of which are arranged at regular distance on the rim 80, take

  the position shown in FIG. 5. During operation

  ment, each of the rotors 9 and 10 will rotate with a rotational speed of about 1500 to 2000 revolutions per minute. The trajectory bands described by the mowing knives 87 of the two rotors, overlap, seen in plan. The mass formed largely by the boss 95, the support 88, is located above a plane which passes through the axis of the pivoting shaft 90 and is directed perpendicular to the axis of rotation 57; it is dimensioned in such a way with respect to the mass, located below said last plane of the support 88 and of the mowing knife 87, that the whole support-mowing knife

  occupies the position shown in FIG. 5, the knife is broken

  cheur being located at the level of the desired cutting height and

  the tension force existing between the support 88 (special-

  the inclined lower edge 94) and the outer edge of the support 92 being relatively weak because of the latter dimensioning. If the support 88 and the mowing knife 87 then encounter during the rotation in the direction B an irregularity of the ground or another obstacle, the support, which

  is driven outward by centrifugal force, turns

  ra backwards around the axis of the pivoting shaft 93 (po-

  dotted line in Fig. 4). This rotation will also be carried out by the support 92. If the support 88 has then turned a certain angle towards the rear, the lower inclined edge

  94 comes into contact with the rounded element located between the Jan-

  te 80 and the collar 86. During the backward rotation of the support 88, the inclined lower edge 94 will move along the said element upwards, also the mowing knife 87 will move from the ground and also from the 'obstacle

  to the top. During its backward rotation, the

* ment 88 meets a stop in the form of spokes 79 (Fig. 4).

  The upward movement, which has just been described, of the support

  88 during rearward rotation is made possible by rotation around the axis of the pivoting shaft 90. After the obstacle has passed along and below the support 88, the support 88 shown in dotted lines in Fig. 4, se

  will move outward again due to the centric force

  fuge, until the position of radial equilibrium, indicated

  in solid lines, be reached again. The possibility of the-

  said rotation is also valid for the form of realization

  tion according to Fig. 6, however the lower edge 94 of the support

  88 in the equilibrium position is not, during operation

  operation, in contact with the rest of the rotor, but it is so-

  killed in parallel at a short distance above the outer edge, also inclined downwards, of the rim 80. Thus, one obtains

  immediately after support 88 has turned to the rear

  because of the meeting of an obstacle, that the lower edge

  inclined laughter 94 comes into contact with the conductive rim 80, therefore also immediately moves upwards and becomes

  therefore out of reach of the obstacle. It also prevents the

  tact of bottom edge 94 with rim 80 occurs from a

  less brutal than in the case of the example of realization

  tion of fig. 5, because after an angular deformation notably

  ment lower, the lower edge 94 would suddenly arrive in

  contact with the edge of the rim 80. According to the example of

  sation of FIG. 6, this is done practically immediately after the beginning of the rotation towards the rear, so that the support 88 will slide continuously on the rim 80 without disadvantageous jerky shocks. Regular rotation

  backward without shock from the mowing knife is also fa-

  favored when encountering obstacles, thanks to the fact that the mowing knife is located by the support 88, some distance from the outer edge of the rim 80 of the rotor. Upon impact of an obstacle, the angular acceleration, which occurs, will be less, because the rotor can turn by a greater angle, before the obstacle is avoided and there is therefore more time until the obstacle avoided disappears, only in the case where the mowing knife is fixed directly to the rim 80. Thus, the forces, which arise at the level of the attachment to the rim, as well as the force which is exerted by the obstacle on the knife or on the support, will be more

  weaker than in the case where the mowing knife 87 is itself

  even fixed directly to the rim 80.

  In Fig. 7, there is shown an exemplary embodiment, in which the mowing knife and the arm are fixed in one piece. The spring steel tab is therefore provided, at one end, with a loop 96, which is bent in such a way that this loop tightly surrounds the axis of

  swivel 90. In use, when changing the slack knife

  chor, the axis 90 must be easily removable in this case by

  relative to supports 91. The loop 96 ends at the top

  of the pivot axis 90 and is then extended by a part

  practically horizontal tie 97. The end, opposite the pivot axis 90, of the horizontal part 97 is extended by a

  curvature 98, oriented downwards with respect to the part 97.

  At the lower part of the curvature 98, the spring steel tab is again bent from the pivot axis 90,

  a knife part 99 being formed directed practically ho-

  horizontally or a little down. The center of gravity of the material of the practically horizontal part 97 is, during operation, as a result of centrifugal force, above the axis of the pivot shaft 90 and the center of gravity

  of the knife part 99 is located below this tree.

  The total length, measured in the radial direction, of the parts 96 to 99, can, in principle, be equal to the total radial length of the support 88 and the mowing knife 87. If the length of the part 97 and that of the knife part 99 are also

  long, the knife part 99 remains, during operation

  ment, due to the centrifugal force, perpendicular to the axis of the rotation shaft 57. This structure forms a solution - simple and inexpensive compared to the embodiment according to Figs. 4 to 6. In the exemplary embodiment according to FIG. 7, the rim 80 is not provided with the collar 86, bent downwards, but with a collar 86A bent upwards up to a height corresponding practically to the upper part of the pivot axis 90, so that , if the rotor is stopped, the horizontal part 97 can rest on the upper end

  of the collar 86A, this prevents the knife part 99 from

  laying on the ground during shutdown, which could cause damage. The cup 81 is connected at its upper part 85 to the lower part of the rim 80; at the same height of the

  rotor, the length of the spokes 79 is a little longer in this case

  lower than that of the previous embodiments.

  Although in Fig. 7 we drew for each knife

  only a pivot axis 90, which intersects the perpetual axis of rotation

  specifically, it is also possible to arrange, in a way

  similar to the previous figures, a pivot axis 93, directed pa-

  parallel to the axis of rotation 57, the supports 91 being fixed again on a support 92, which can rotate backwards

  around the pivot axis 93. In order to be able to rotate the

  knife tie 99 up during backward movement

  When this part encounters obstacles, it is advanced

  tagous in this case to have the curvature 98 not parallel

  directly to the axis of rotation 57, but from the horizontal part

  zontale 97, to bend it in a direction inclined outwards downwards, so that, during the rotation towards the rear, the curvature 98 directed outwards and towards the

  bottom, can slide up on the upper edge of the collar

  bind 86A, and so the knife portion 99 can also spread

  crank up from the obstacle.

  In Figs. 8 and 9, a form of embodiment is shown.

  tion in which a mowing knife 100 is fixed on the end

  mite opposite to the rim 80, of a support 101 and the end, located furthest outwards towards the outside, of the mowing knife 100 protrudes beyond this end of the support 101, in the direction of rotation B, the cutting part of the mowing knife 100 projecting in front of the front edge of the support 101. The mowing knife 100 and the support 101 are fixed to the rim 80 by a pivot axis 102. Thus, the support

  101 is welded to a socket 103, which can rotate freely

  around the pivot axis 102. The pivot axis 102 is directed upwards from the rim 80 and it makes a certain angle with a plane, situated perpendicular to the axis of rotation 57. This angle is preferably equal to about 70 to 80. The pivot axis is fixed in such a way as to the rim 80, that the latter, with respect to the direction of rotation B and from the rim 80, is inclined upwards and forwards. The axis of the pivot shaft 102 lies in a plane located tangentially with respect to a coaxial cylinder located around the axis of the rotation shaft 57. During the operation

  the combination of the mowing knife 100 and the support

  101 will take up a position due to centrifugal force such as a connecting line, located perpendicular to 1 '

  axis of the rotation shaft, between this shaft and the center of gravity

  vity of said combination, will cut the axis of the pivot shaft 102.

  If the mowing knife 100 or the support 101 touches, during

  the operation, an obstacle, the combination of the faulty knife

  cheur and support will turn backwards and because of the position described above of the pivot axis 102, also towards the

high avoiding the obstacle.

  In Figs. 10 to 12, the rotors are each provided with a number of combinations of different working members, and each combination consists of a mowing member and a receiving member. As described above, a mowing knife 104 is fixed to the upper part and to the front part of a support 105 which is still fixed, so as to be able to rotate, thanks to a pivot axis 106 by means of the supports. 91 on the upper part of the rim 80. The pivot axis 106 crosses the axis of rotation 57 and is arranged near the outer edge of the rim 80. The pivot axis 106 makes a certain

  angle with a plane arranged perpendicular to the axis of ro-

  tation 57 (Fig. 11) and it is arranged so that from the rim 80 and relative to the direction of rotation B, it is

  tilted forward and up; it is headed more ho-

  horizontally than vertically and its axis is located in a plane, arranged tangentially to a cylinder, the axis of which

  - symmetry coincides with the axis of the rotation shaft 57. From-

  shot from the pivot axis 106, the support 105 tilts towards the ex-

  downward, so that at least the largest part of the mass of the support 105 and the mass of the mowing knife 104, in the operating position, drawn on the

  Fig. 12, is above a plane, located perpendicular-

  ment to the axis of rotation 57 and not passing through a point on the pivot shaft 106.-The lower part of the support 105 (Fig. 12) is produced in such a way that this lower edge

  either tilted outwards from the rod

  tion between the rim 80 and the collar 86. Near said der-

  Finally, between the rim 80 and the collar 86, the lower edge of the support 105 constitutes with this junction stop planes, which work simultaneously and which prevent the support 105 from the position drawn in FIG. 12 no longer turns downwards. The upper part of the retaining part 105, located near the pivoting shaft 106 and also located on each side of the latter and above it, is delimited at the upper part by a flat delimiting plate 107 (Fig. 13) which is located, at least during operation, parallel to a plane perpendicular to the axis of rotation 57. On this plane 107, is arranged a member

  cylindrical carrier 108, whose axis is located perpendicular-

  plan 107 and is therefore directed, at least during operation

  operation, parallel to the axis of the rotation shaft 57.

  The diameter of the cylindrical surface of the carrier member 108 is about twice as large as the diameter of the pivot axis 106. The axis of the cylindrical surface of the carrier member

  108 cuts the axis of the shaft 106. The diameter of the cy-

  the diameter of the carrying member 108 is approximately equal to 80% of the height of the carrying member 108 above the plane 107. Au-

  tower of the orgnae 108 and on the plan 107, we can slide

  be a support 109 of a raking member 110. Support 109 is

  a hollow cylindrical body, and the internal diameter of the part

  cylindrical tie is slightly greater than the outside diameter of the cylindrical part of the carrier member 108. On one side of the cylindrical part, the support 109 is open, on the other side, at the upper part, the support is closed by a closing element in the form of a cover. The length, along the direction of the axis of the cylindrical part of the support 109 is approximately

  2 1/2 times as long as the length, measured in the direc-

  corresponding tion of the carrying member 108.

  The raking member 110 is made up of a group of two raking teeth, which are made from a single piece of steel wire

  with springs and which, parallel to the axis of rotation 57, is

  wind one above the other. By turns 113, the upper tooth 111 (Fig. 12) is fixed to the support 109, the lower teeth 112 of each group 110 are fixed by turns

  114. By a fixing bolt or rod 115, which can be introduced

  duit in the support 109, a connecting part between the turns 113 and 114 is fixed to this support. In the mounted position (Fig. 12), the lower part of the bolt 115 is located exactly above the upper part of the carrier member 108, arranged in the support 109. At the lower part of the support 109, is arranged

  a fixing plate 116, directed parallel to a per-

  pendulum to the axes of the cylindrical parts of the body

  tor 108 and the support 109. The delimitation plane opposite the support 109, to the fixing plate 116, rests in the mounted position, on the delimitation plane 107 of the support 105. In the fixing plate 116, some distance from the support 109, a hole, the axis of which can coincide, by the rotation of the support 109, around its longitudinal axis of symmetry, with a certain number of holes, for example two, formed in the

  support 105 and one of which 117 is visible in FIG. 10.

  In the hole made in the fixing plate 116, and in a

  holes, arranged in the support 105, can be introduced

  has a removable bolt or rod 118, so that the support 109 can be arranged at the same time as the raking member 110,

  attached to it, in several positions relative to the support

  105 and the mowing knife 104. In the working position and seen parallel to the axis of rotation 57 (Fig. 10), the teeth 111 and 112 start from the turns 113 and 114, relative to the direction of rotation B, rearward. The part of these teeth 111 and 112, connecting to the turns 113 and 114 is therefore

  located relative to the direction of rotation B, at least partially-

  ment behind a radius passing through the axis of the rotation shaft 57 and the axis of the cylindrical part of the support 109. With respect to the direction in which the internal parts of the teeth

  are directed, the ends of the teeth 111 and 112 are recur-

  open in the direction of rotation B and in such a way that, in a first position, seen parallel to the axis of rotation 57,

  a ray passes through the axis of rotation 57 and the points of inflation

  xion 121 and 122 of teeth 111 and 112 (from these points, the ends of teeth 119 and 120 are bent in the direction of rotation B). These tooth ends 119 and 120, with respect to the direction of rotation B, are located in front of this radius, while in a second position, indicated by dotted lines in FIG. 10, the directions of the ends of the teeth 119 and

  coincide with the direction of said radius.

  During operation, the rotors can, in the first place, be provided with mowing knives 104, only arranged

  by retaining elements 105, the raking members 110 being separated

  tees after removing the bolts or rods 118. In this case, the

  supports 105 and the mowing knives 104 will occupy, during

  during operation, the position shown in Fig. 12, because of the centrifugal force, and the mass of the carrier member 108, located above the pivoting shaft 106, is chosen in such a way relative to the mass, lying under a plane located perpendicular to the 'axis of rotation and comprising the axis of the pivoting shaft 106, the support 105 and the knife

  mower 104, that the lower edge of the support 105 at the

  right of the junction between the rim 80 and the collar 86,

  then with a relatively weak force. If the support 105 and the mowing knife 104 touch an obstacle, both

  can tilt up and back, so from

  firing of the obstacle, because of the inclined position of the pivot shaft 106 (Fig. 11). According to the principle of the invention, however, it is also possible to use the raking members 110 during mowing. After the support 109 of the raking member 110 has been slid over the carrying member 108 and has been fixed by the bolts or rods 118, it is possible to work, by means of this compound working member, like that shown in FIGS. 10 to 12. The plants mowed by the mowing knife 104 pass over the mowing knife, they are gripped by the teeth 111 and 112 of the raking member 110 and then they are guided by the rotors, which rotate in opposite directions (the arrows D of

  Fig. 1) between these rotors backwards in an ana-

  log to that of a circular tedder. The guide members constituted by the guide planes formed by the rods 41 and 46 can then be arranged so as to converge towards the rear as shown in FIG. 1, so that the mown plants are deposited in a swath, the width of which is determined by the mutual distance of the ends

  rear of corresponding rods 41 and 46, width which is

  less than the mowing width of the rotors. However, it is also possible to fold the guide members down, as indicated by the dotted line in FIG. 2, so that the plants projected towards the rear do not come into contact with these guide members and the plants are spread behind the rotors. By using the raking members 110 in combination with the mowing members, one obtains the important advantage that the mown plants can be gathered in a much more efficient way along a swath, and can only be spread, when the mowing members (that is to say the mowing members 104 and the supports 105) will only be present without the raking members 110. The position to be chosen of the teeth 111 and 112, that is to say the position indicated in

  solid line in FIG. 10 and the position indicated in dots-

  depends on the fact, if the plants are to be spread (po-

  full line), or if they need to be collected

  Wheat following a swath by the position indicated in Fig. 12496-404

  guide members 41 and 46. In the latter case, it is desirable to place the teeth 111 and 112 according to the position

  shown in Fig. 10 dotted.

  Also the haymaking itself can be carried out using the same machine which, as described above, (Fig. To 12d, is used for mowing. The rotation speed

  for haymaking is around 240 revolutions per minute and

  during mowing it will be from 1500 to 2000 revolutions per minute. The support 105 will thus play the role of a tooth, but not of a tooth which can deviate elastically towards the rear. In the case where it is desired that the support can move backwards, it can be fixed around a pivoting axis, not shown, directed upwards, relative to the pivoting shaft.

  106, the support 109 and the raking unit 110. Thanks to the

  this centrifugal, we get so to speak a rotation of re-

  elastic turn (compare also Figs. 14 and 15). In this case, the mowing knife 104 can be removed, if desired.

  loosening the bolts or rods 89. If the cover is not removed

  mowing deck 104, the hay stalks will be cut into smaller pieces during haymaking, which can lead to

  important advantages for later treatment, such as

  during collection and storage. The machine according to Figs. 10 to 12 is therefore a universal machine, which can be used both for haymaking itself and for mowing, so that the use of special machines is avoided.

for this work.

  The idea of using a machine suitable for mowing, for haymaking itself, when you don't want to cut the hay stalks into smaller pieces, is clearly developed on

  Figs. 14 and 15, and the mowing knife 104 is not directly

  securely fixed to the support 105, but it is fixed, by bolts

  lons or rods 89, to an individual support 123, the latter for

  before turning about a pivoting axis 124 relative to the support

  105. The axis of the pivoting shaft 124 is perpendicular to a plane, parallel to the lower edge, directed obliquely outward and downward from the support 105. The length of the

  support 123 is chosen in such a way with respect to the length

  support retaining 105, that the length, located along the

  same direction, support 123 is approximately equal to 75% of the length

  length, measured in the radial direction from the pi-

  voting 106, of the support 105. The support 123 is oriented practically parallel to the lower edge, inclined towards the outside and downwards of the support 105. Near the tilting axis 124, the support 123 is provided with a notch 125. With respect to the direction of rotation B, the notch 125 is located in front

  the pivoting axis 124 and occupies an inscribed angle of approximately 45.

  The notch is delimited by a delimitation plan, located from-

  in the direction coaxial with respect to the pivoting axis 124, as well as by two delimitation planes, situated radially

  with respect to this pivoting axis. At the top of the sou-

  105, we have placed near the end near

  the pivoting axis 124 of the support 123, a lock 126 which

  partially sit on the support 123, also located at the

  upper tie of the support 105. Seen parallel to the direction of the axis of the pivoting shaft 124, the shape of the part of the latch 126 situated above the support 123 is approximately equal to that of the notch 125, but a little more small when it comes to dimensions. If the support 123 is rotated around the pivoting axis 124, in a corresponding direction in FIG. 14 at arrow B (dotted position in Fig. 14), the delimitation of the part of latch 126, located above the

  support 123 will fall after a certain rotation, parallel view-

  ment to the pivoting axis, inside the entire delimitation of the notch 125, so that the support 123 with the mowing knife 104 can be removed together, by sliding along the pivoting axis 124, of the retaining 105. The remaining part, namely the retaining 1-05, can then be used during haymaking work in cooperation with the raking member 110, and in this case, the retaining 105 serves as a rigid tooth. It goes without saying that, having regard to the direction of rotation B, the front of the support 105 can be formed in such a way that the plants, grasped by the support 105, are transported backwards and also upwards towards the teeth 111 and 112 of the raking member 110. Thus, one can give the front of the support a bevel, which is inclined backwards and upwards. The notch 125 is disposed at the front of the support 123 to prevent the support 123 from coming off the axis

  pivoting 124, if the support 123 rotates rearward relative

  support 105 when it encounters an obstacle.

  It goes without saying, having regard to Figs. 12 and 15, that the force with which the part of the inclined lower side of the support

  is in contact with the junction between the rim 80 and the collar

  link 86, will be stronger after adding the r & teleur organ

  to the mowing organ; in this case there is only the elec-

  ment reaper. The height of the mowing knife 104 above the ground is determined by the junction, which serves as a stop, between the

rim 80 and collar 86.

  It goes without saying also that the structure according to FIGS. 4, 5 and 6, o the working member can rotate relative to the rim 80 about a pivoting axis 93, located in parallel

  to the axis of rotation 57, can also be used in the structure

  according to Figs. 10 to 15, o the supports 91 are fixed from

  analogously on supports 92, which can rotate

  rotation of the pivot axis, located parallel to the axis of rotation 57, and thus, the working member is turned backwards after encountering an obstacle and can move

  through the inclined lower part of the support

  105 on the edge of the rim 80 towards the rear and towards

the top.

  In addition, we note that the pivot axis 90, which intersects the axis of rotation 57 perpendicularly (Fig. 4, 5, 6 and 7) and the pivot axis 106, inclined (Fig. 10 to 15), can be used to turn the working members, whether they are mowing members, haymaking devices or a combination of both, upwards, in the direction of the axis of rotation 57 in order to

  get a smaller width of the machine during trans-

  Harbor. In order to avoid upward rotation of the working members, by means of the hand, it is possible to adjust the working members automatically to the transport position,

  if the rotors stop, as in Fig. 16. In this example-

  ple embodiment, the pivot axis 106 is arranged in a special place relative to the working member. In the radial direction, the distance between the axis of the rotation shaft 57 to the point of intersection of the spoke with the pivot axis 106, is greater than the distance from the axis of the rotation shaft 57 up to the center of gravity of the combination of support, mowing knife 104 and support 107. The difference between these two distances can be fixed in relation to the

  mass of parts 104, 105 and 108 by the possibility of realizing

  ser the cylindrical carrier member 108 massively or not and / or

  to change its diameter or its height. After using the element

  mowing mower 104 and 105 only (therefore without the raking member), this mowing element will tilt in this case, after the rotor has stopped, around the axis 106, until the end

  lower 105 support is then delimited in its

  by the rim 80, which therefore serves as a stop. This rotation around the axis 106 can be chosen in such a way that the mowing knife 104 comes into the vertical transport position (Fig. 17). In this position, the carrying member 108 must not

  preferably not be directed completely perpendicularly

  on the axis of rotation 57, but it must make a small angle with the upper plane of the rim 80, so that the

  center of gravity of the rim 80 protrudes exactly at

  above the pivot axis 106, so that when rotating

  next, the position, shown in FIG. 16, be taken.

  It goes without saying that if the receiving member 100, comprising the support 109, the teeth 111 and 112, as well as the turns, are placed on the carrying member 108, the rotation in the transport position will be even easier when stopping the rotor, since the center of gravity of the raking member 110 is on the side facing the axis of rotation 57, of the pivot axis 106. In the transport position, o the mowing knife 104 and the teeth 111 and 112 are directed approximately parallel to the axis of rotation 57, the center of gravity of the entire working member will be located a little higher above

  the pivoting shaft 106, that in the case where there was only the

  mowing gane, so that after rotation, the working member

  the whole vail will return to the position shown in Fig. 16, until the inclined lower part of the support comes into contact with the junction between the rim 80 and the

necklace 86.

  Automatic rotation in the transport position, which

  is obtained only using the mass of the working organ

  vail to turn, has the advantage that the working width of all

  te the machine can be especially larger than in the case where the working members can not be folded down. The

  total width of the rotors, measured, fitted with working members

  folded down, so can be about as large as the lar-

  tractor, while in the working position, the working width can be significantly greater than the width in the transport position, because the working members (mowing knife 104, teeth 111 and 112) can protrude clearly out of the rim of the rotors. Thus, in the transport position, a significant reduction in width is obtained, as well

  with the construction of the harvester or with the tedder

  circular or a combination of the two. The diameter of the rotors in the working position is, according to the invention, approximately equal to

  1.6 times the width of the rotors in the transport position.

  The invention relates to a machine with which it is equally possible to mow, deposit the plants harvested in a swath or spread them, the hay being able to be treated in the same way.

  so that with a circular tedder; we can also use

  the same guide members to form a swath and the mowing element can be used, during mowing, entirely or partially as a part of the cutting member.

work for haymaking.

  The invention is not limited to what has been explained in

  the description and also relates to the details of the figures,

written or not.

- 29 -

Claims (3)

- CLAIMS ______________   l - Haymaking machine of the type comprising at least one raking member driven in rotation about an axis directed upwards, said raking member being provided at its periphery with a plurality of groups of teeth consisting of at least two superimposed teeth, each group being mounted so as to be able to pivot freely around an axis which is practically tangential to the periphery of the raking member, said groups of teeth being brought into working position by centrifugal force, characterized in that each group of teeth comprises a rigid lower tooth 105, the upper tooth (s) being flexible.   2 - Machine according to claim 1, wherein the tooth   inferior rigid is directed outwards and downwards.   3 - Machine according to claim 1 or 2, wherein the downward pivoting movement of each group of teeth is limited by the fact that it abuts against the rim of the raking member.