FR2464629A1 - FERTILIZER DISTRIBUTOR PROVIDED WITH MEASURING MEANS - Google Patents

Abstract

SPREADER INCLUDING A BODY AND AT LEAST ONE SPREADING BODY, THE SPREADING BODY MAY BE ADJUSTED WITH RESPECT TO THE SURFACE TO BE SPREADED SO THAT THE DISTANCE OVER WHICH THE PRODUCT IS SPREADED CAN BE ADJUSTED. THIS SPREADER IS EQUIPPED WITH MEASURING MEANS, WITH WHICH AT LEAST THE POSITION OF THE SPREADER IN RELATION TO THE SURFACE AND OR THE SPREADING DISTANCE, CAN BE EASILY FIXED.

Description

The invention relates to a fertilizer spreader comprising a frame and a member

  spreader, at least the spreading member being adjustable relative to the surface, so that the distance

can be adjusted.

  The invention aims to provide a simple and straightforward adjustment.

  pide of the position of the spreading member, to obtain a spreading

  precise age. According to the invention, the spreader is provided with measuring means making it possible to adjust the position of the spreading member relative to the ground and / or the spreading distance. According to an example

  simple to carry out, the measurement means include orga-

  nes to determine the angle of the spreading member by

  report to the ground. They preferably include two arrangements.

  spacing gauges, spaced from each other, the function of which is to measure the height from the ground of points

spaced from the spreader.

  According to an advantageous embodiment, one of the distance measuring devices, or the extension thereof

  extends along one of the lower coupling points of the spread

  deur. The measuring device located near the coupling point does not

  will hardly change position when adjusting the spread

  due to the lifting device.

  According to another exemplary embodiment, the measurement means are, at least partially, movable relative to the frame of the spreader. This allows the measurement means to be adjusted firstly relative to the ground, then to adjust the position of the spreader relative to the ground, without influencing the measuring means, so that the adjustment is carried out easily.

  and that the change in setting is quickly noticeable.

  According to another exemplary embodiment, the measuring means comprise a detector interposed on the path of the product during spreading and which extends at least partially upwards, which indicates which parts of the detector are reached by the product towards the high. It is thus possible to determine the direction of the spreading trajectory, which provides a

  indication of spreading distance.

  According to an advantageous arrangement, the detector is placed perpendicular to the ground. Preferably, the position of the detector can be adjusted relative to the ground, thanks to a support

  hinged on the spreader.

  The direction of spreading can be precisely adjusted

  dage when mounting two detectors spaced from each other

  on the product ejection path.

  Other objects and characteristics of the invention

  will emerge from the description below, with reference to

  attached drawings, which represent, by way of nonlimiting examples, some embodiments of the device according to the invention. In these drawings: FIG. 1 is a side view of a device

according to the invention.

  Figure 2 is a side view of a second example

  for producing the device according to the invention.

  Figure 3 is a side view of a third example.

  ple realization of the device according to the invention.

  Figure 4 is a side view of another example

  for producing the device according to the invention.

  Figure 5 is a side view of another example

  for producing the device according to the invention.

  Figure 6 is a side view of another form of

  realization of a device according to the invention.

  FIG. 7 schematically represents a view in

  plan of a spreader according to the invention.

  FIG. 1 represents a device 1 for spreading a granular and / or pulverulent material, and more especially, a fertilizer spreader. The spreader 1 is coupled to the device

lifting 2 of a tractor 3.

  It comprises a frame provided with coupling points 5 and 6, fixed respectively to the lower connecting rods 7 and to the upper connecting rod 8 of the lifting device 2. The frame 4 carries a hopper 9, below which a spreading member 10 -is arranged, rotatable around a vertical axis 29. The spreading member is driven from a gearbox 11, coupled by means of a return shaft 12, to the gripping axis force of the tractor 3. Between the spreading member 10 and the reservoir 9 is - arranged a metering mechanism 13, with which one can adjust the

  quantity of product supplied per unit of time from the tank

see the spreading organ.

  The spreader is provided with measuring means 16, with which the height of the spreader member above the ground can be measured and adjusted. The measuring means are further such that they allow the angle to be adjusted, which the spreading member makes with the ground 15. The measuring means 16 comprise a support rod

  17, which is horizontal when the spreader is in the horizontal position

  zontal and which is fixed by legs 18 and 19 to the frame 4. Aux

  ends of the supporting rod 17, legs 20 and 22 are ar-

  knotted on axes 21 and 23. The leg 22 is behind the leg 20 relative to the direction of advance 32. The leg

  is constituted by a tube 29, in which the lower end

  24 can slide and can be fixed in several posi-

  tions using a pin 25. The leg 22 is constituted by a rod 30, at the lower end of which is mounted a part in several parts 26. The part 26 comprises several parts 27, hinged together by joints 28, of

  so that you can fold them up next to each other.

  During operation, the spreader is fixed to the lifting device 2, as shown in FIG. 1. The hopper 9 is filled with the product to be spread, for example granular chemical fertilizers. The dosing mechanism 13, which is not

  shown in more detail, is adjusted so that the quan-

  desired amount of product per unit of time can flow from the reservoir to the spreader 10. The spreader

  is driven from the PTO shaft.

  - Depending on the shape, the dimensions and the speed of rotation of the spreader, the product is sprayed at a distance from the ground. This distance depends / on the height of the spreading member relative to the ground 15 and on its position relative to this surface. In the normal working position, the spreading member 10 is parallel to the ground 15, the axis of rotation 14 being perpendicular to the ground 15. The height of the spreading member 10 above the ground is therefore about 60 centimeters. . With this data, the product is spread over a

  width of about 8 meters and a distance of about 8 meters.

  These distances can be modified by modifying the angle made by the

  gane spreader from the ground and its height from the ground.

  The measuring means 16 are such that, to adjust the spreading distance, the position of the spreading member can be adjusted as desired. With the spreading means 16, according to FIG. 1, the position is adjusted when one begins to work with the device. In Figure 1 is shown

  the position in which the legs 20 and 21 are perpendicular

  res to the support rod 17 and therefore vertical with respect to the ground 15. In the position shown, the ejector member 16 is at a height 33 of 60 centimeters above the ground. The distance can be reduced, for example, by sliding the lower end 24 of the leg 20 inside the tube 29 and by folding, for example, a division 27 of the part 26 of the leg 22. The end 24 can be provided for this purpose a graduation which makes it possible to read the height 33 of the spreading member above the ground. The part 24 is long enough for the desired height variation 33 to be obtained. Each division 27 has, for example, a length of 4 to 5 centimeters, so that the

  height 33 can be adjusted in 4 cm intervals.

  If, from a certain position, in which the organ spreads

  deur 10 is horizontal, we want to place the spreading organ obliquely

  As shown in dotted lines in Figure 1, one or more divisions can be folded down from part 26. The length of each division is such that by folding a member, the angle rotation of the 'spreading member relative to the ground plane is about 2.50. The dotted position in FIG. 1 of the spreading member forms an angle of approximately

  with the ground plane 15. For this purpose, the leg 22 is extended

  ged over a distance 31 equal to the deployment of four divisions 27. The angle 34 of the spreader member can be easily adjusted by turning the upper connecting rod 8, so that the entire spreader member 1 rocks around the point of coupling 5 of the spreader with the lower connecting rods 7. The rotation is continued until the lower ends of the legs

  and 22 (with its extension 31) touch the ground.

  The product which is brought eccentrically with respect to the axis of rotation 14 through the discharge openings of the metering mechanism to the spreading member 10, is ejected rearward relative to the direction of normal advance 32. In adjusting the spreading member as shown in dotted lines in FIG. 1, the product is ejected backwards and obliquely upwards, which increases the spreading distance. When one wishes to orient the spreading member 10 obliquely downwards towards the rear, one or more divisions 27 of the leg 22 are folded back. As a result, the measurement means 16 give, when they rest on the ground by the lower ends of the legs 22 and 20, the indication of the desired oblique downward disposition of

the spreading organ.

  As the leg 20 is located below the coupling points 5, the distance of the points 5 from the ground practically does not vary when the length of the upper link 8 is modified. Thus, when the spreader is tilted from a

  horizontal position, there is no need to change the

  glage of the leg 20. To obtain a setting as precise as

  possible from the oblique position of the spreading member,

  ment 35 of legs 20 and 22 must be greater than the diameter 36 of

the spreading organ.

  When the correct position of the spreader and the spreading member has been obtained, after having placed the coupling points at the correct height using the lower connecting rods 7 and adjusting the length of the upper connecting rod, legs 20 and 22 in the rest position. To this end, the measuring means 16 are folded around the joints 21 and 23 by placing the legs 20 and 22 parallel to the rod 17. To keep the legs 20 and 22 in this position, two hooks 27 are fixed to the support rod. 17. As a variant, the lugs 18 and 19 for fixing the measuring means 16 to the spreader may include supports

  for legs 20 and 22. The mounting lugs 18 and 19 may

  may be designed in such a way as to make the measuring means 16

removable from the frame 4.

  In Figure 2 is shown another example of

  realization, in which the measuring means are realized other-

  ment as in figure 1. The spreader itself is identical to that of figure 1 and the references are the same. In this

  second example, the measuring means 41 are mounted at articula-

  on the frame 4. They include a carrier bush 42, ar-

  ticulated on the coupling point 5 on an axis extending it. On the sleeve 42 are fixed legs 43 and 44. The leg 43 consists of a rod 45, provided with a graduated scale and a

  tube 46, sliding on the lower end of the rod 45.

  The tube 46 has a foot 47 and can be fixed by a pin 48, in several positions relative to the rod 45.

  The leg 44 is constituted by a rod 49, arranged obliquely

  ment relative to the ground 15, with a tubular end 50,

  in which a rod 51 can slide and be fixed in more

  several positions by a pin 52. The rod 51 has a foot 53 at its lower end. The measuring means 41 further comprise a needle 54, = fixed to the sleeve 42, which cooperates with a sector 55 graduated according to a scale 56 and fixed securely

to chassis 4.

  In this exemplary embodiment, the normal upper rod is replaced by a hydraulic rod 57, controlled

from the tractor seat.

  The length of the legs 43 and 44 is adjusted to

  finish the height of the spreading member above the ground 15. The tube 46 and the rod 41 can be fixed respectively in their

  desired positions by pins 48 and 52. When the long

  organ 43 and 44 is adjusted and both feet 47 and 43

  rest on the ground, point 5 is at the desired distance above

  above the ground. The indicator 54 is therefore in a certain position along the scale 56. By adjusting the upper link 57, the spreader and therefore the sector 55 are tilted.

  can bring the indicator 54 near the zero of the scale 56. When

  that the needle 54 is at zero, the spreader member 10 is parallel to the ground 15. From the desired height above the ground of the spreader member, the spreader and therefore the member can be tilted

  spreader by changing the length of the upper link 57.

  For example, by shortening the connecting rod 57, the spreader will tilt

  in the direction of arrow 58 around the coupling point 5. the

  gane spreader 10 will be tilted forward with respect to the ground, as shown in dotted lines in FIG. 2. When the spreader is tilted around point 5, the sector 55 moves along the needle 54. L 56 indicates the value of the displacement of sector 55 and therefore that of the angle

  that the spreading member 10 does relative to the ground 15.

  The oblique arrangement of the spreader can be ob-

  easily held with the means of Figure 2 from the driver's seat by the hydraulic control of the rod 57, since the needle 51 and the scale 56 are in sight of the driver on the tractor seat. With the measuring means 41 and 16, it is possible to adjust the height of the spreading member relative to the ground, as well as the oblique position of the spreading member relative to this plane, whether this plane is horizontal or inclined. These means are such that they make it possible to obtain the height of the spreader member above the ground and the inclination of the spreader relative to the ground, so that their operation is independent.

of the slope of the ground.

  In Figure 3 there is mounted on the spreader 1 another embodiment of measuring means. According to Figure 3,

  the measurement means 61 are articulated with respect to the frame 4.

  They have a horizontal support rod 62 and legs

  63 and 64. The legs have curved lower ends

  straighteners 65 and 66, which are graduated and which can be fixed

  in several positions by pins 71. Near the end

  mite front of the rod 62 is arranged, in the extension of the leg 63, a coupling rod 67 which, at its upper end, comprises a carrier bush 68, rotatably mounted on the coupling point 5. It may be possible mount in the extension of point 5 a pin to fix the carrier bushing 68 to the frame 4. The measuring means 61 also comprise a detector 69, coupled by electric wires 70 to an indicator, which is not shown in more detail , near the tractor driver's seat. The detector 69 is arranged, using a hinge pin 72, at the rear end of the

  rod 62. The rotation of the detector 69 around the articulation axis

  tion 72 relative to the rod 62 can be locked by a locking mechanism 72, which is not shown in more detail and with which the detector can be fixed at least in

  vertical position with respect to the rod 62.

  With the measuring means 61 according to FIG. 3, the height of the ejector disc can be adjusted above the surface 15

using legs 63 and 64.

  The parts 65 and 66 of these legs can be extended and fixed using pins 71 to determine

  the height 33 of the spreading member. In this example of reali-

  sation, the measuring means 61 can pivot relative to the chassis 4 around the point 5, as in FIG. 2. In the starting position, the spreading member 10 is parallel to the treated surface 15 and the lower ends of the members 63 and 64 rest on the ground; the detector is perpendicular to the ground 15, as shown in FIG. 3. When spreading with the ejector member parallel to the ground 15, the product is ejected along the lines 73. It then strikes the detector in the area 74. The detector 69 indicates, through cables 70, to the indicator the zone of impact of the product. We thus determine

  the direction of the product relative to the ground at the exit of the or-

  gane ejector 10, since the detector is at a certain

  height above ground 15. This gives an indication of the dis-

  tance on which the ejector member spreads the product. The dis-

  The spreading rate can be adjusted by the inclination of the ejector member. The ejector member can, for example, be put in the

  position shown in dotted lines in FIG. 3. This posi-

  tion is obtained by shortening the connecting rod 77 by means of the

  hydraulic mechanism from the tractor driver's seat.

  If this inclination of the spreader (and thus of the spreading member) takes place during spreading, the path 73 will move upwards and when it has reached the position shown in dotted lines in FIG. 3, the product will hit the detector in area 75. As the distance 76 separating the detector from the outer circumference of the spreader is known, the

  area in which the product hits the detector gives an indication

  cation on the angle at which the product is projected obliquely

  to the top. Thus, we also determine the spreading distance

  dage. The detector 69 also gives an indication of the width

  spreading. When the correct position of the spreader and the

  gane spreader is determined relative to the ground, the detector 69 can be folded down, so that it is parallel to the rod 62. The rod 62 can be fixed to a hook, not shown on the frame 4, and rods 65 and 66 can be

  telescoped so that they no longer touch the ground.

  The spreader is then ready to work.

  The detector 69 is preferably constructed in such a way that it indicates the number of grains which strike the detector per unit of time and per unit of area of the detector. In this way, the detector 69 can, in correlation

  with distance and spreading width, indicate the quantity

  tity of product spread per unit area. The detector

  instantly tells the tractor operator if the

  positive dosing and spreading distance are correct. The spreading distance setting can be easily controlled from the tractor seat by changing the length of the

connecting rod 57.

  In Figure 4 is shown an exemplary embodiment

  tion in which measuring means 81 are articulated to the hopper of the spreader. The measuring means 81 consist of a support rod 82, articulated to the reservoir and to which a leg 83 is firmly fixed. Two detectors 84 and 85 are articulated

  by means of axes 87 and 88 on the support rod 82. They are

  spaced a distance 86 from each other, in the direction of ejection of the spreader member 10. Viewed from the side, the detectors 84 and are offset so that the detector 84, located closest to the spreader 10 does not mask the detector 85. The support 83 is behind the detector 84, so that

  it does not form an obstruction in the trajectory of the pro-

  duit towards the detector 85. Locking mechanisms 90 are associated with the articulations 87 and 88 to fix the position of the detectors 84 and 85 relative to the rod 82. The leg 83 carries a foot 91, curved backwards relative to the direction of travel 32 and with which the measuring means 81 rest on the ground during the advancement of the device. The leg 83 can be adjusted in height so that it can be adapted to the height of the spreading member above the ground 15. The rod 82 is connected to

  a cable 89, for tilting up the measuring means 81.

  When using the measuring means 81, these

  these are arranged as shown in Figure 4, the leg 83

  resting on the ground and the cable 89 being loose. When spreading

  dage, for example during the beginning of spreading, or in case of stopping before spreading, the product will be projected on a height 33 above the ground, against detectors 84 and 85 in zone 92 if the organ spreader is horizontal. The product reaches detectors 84 and 85 at the same height above the ground. The detectors 84 and 85 transmit by means of the wires 70 to an indicator, near the driver's seat for example on the

  tractor, indication of impact height. In short

  sant, the upper rod 57 puts the spreading member in the posi-

  oblique tion shown in dotted lines in Figure 4. In this position, the product will be ejected along the path 93 and will reach the detector 84 in the area 94 and the detector in the area 95. The area 95 is located higher above

  from the ground than zone 94. If the lower ends of the detectors

  ters 84 and 85 are on a line parallel to the ground 15, the detector 84 will indicate that the product touches the detector on a

  lower point than on detector 85. From this diff-

  height reference, it is possible to obtain the indication of the angle at which the product is projected by the spreading member and therefore of the angle made by the spreading member 10 with respect to the ground 15. This

  angle determines, as explained in the examples of reali-

  above, the spreading distance. The two detectors 84 and 85 thus form measuring means for fixing the spreading distance. To obtain a height difference allowing the angle to be measured effectively, the distance 86 must have a minimum value; however, it should be as short as possible

  to avoid too much space. In this example of a

  reading, the distance 86 is about 40 centimeters, while

  the distance 96 is about 60 centimeters.

  When using the spreader on a horizontal plane,

  detectors 84 and 85 hang in an articulated manner in the char-

  87 and 88 and take an upright position. For those

  know, the detectors will preferably be fixed relative to the support rod 82. For this purpose, the hinge pins 87 and 88 cooperate with latches 90, which are not shown in more detail. When the spreader is on a sloping plane, the detectors will be adjusted so as to be perpendicular to the surface 15. In this position, the detectors can be fixed by the latches 90 relative to the rod 82. In this position and when the spreading member 10 is parallel to the

  ground, the product will strike detectors 84 and 85 in the area -

  92, which makes it possible to verify that the spreading member is indeed

  parallel to the ground surface 15.- When the position of the spread

  deur is fixed by rupport to the tractor, the measuring means 81 can be removed from the product trajectory by tilting them around the hinge pin 91 upwards. For this, the cable 89 is pulled. The cable 89 can be held in the raised position of the measuring means, so that these are located above the projection path of the product and that they do not interfere spreading. The possible presence of the lower end of the leg 83 on this trajectory

  is not annoying due to the small section of said leg.

  In FIG. 5 is shown another exemplary embodiment in which the measuring means 101 agree in principle with those of FIG. 4. They comprise a carrier rod 102, articulated on the hopper 9. The rear end of the carrier rod 102 is provided with a telescopic leg 104 with a foot 104. Near the end of the rod 102 and in front of the foot 104, is placed a detector 106, articulated with respect to the rod 102 on an axis 107. The position of the detector 106 relative to the rod 102 can be fixed by a latch 108. The detector 106 is located at a distance 109 from the spreading member, greater than the distance separating the detectors 84 and 85 from the spreading member in the previous example. On the supporting rod

  102 is associated with a cable 110, analogous to cable 89.

  When using the measuring means according to Figure 5, they are held so as to articulate freely in a hinge 103, so that the foot 104 rests on the ground. In this position, the height of the detector 106 above the surface 15 is fixed by the length of the support 104 in

  concordance with the height of the member 10 above the ground.

  When spreading takes place, the spreading member 10 being parallel

  lele to the ground 15 and at the desired height, the product will strike the detector 106 in its lower zone 110. The spreader can be placed obliquely to eject the product more upwards, by shortening the connecting rod 57. The height of the zone of the detector struck by the product, indicates the angle under which the product is projected by the spreading member and therefore, the distance and

  spreading width. As in the examples of realization before-

  In the past, the detector 106 is constituted in such a way that the number of grains which, per unit of surface of the detector and per unit of time, collide with the detector, indicates the quantity of product spread per unit of surface. As the distance 109

  between the detector and the spreading member 10 is relatively large

  of, a slight difference from the height 33 of the spreading member above the ground will have practically no influence on the

  measures. The distance 109 will preferably be about 150 centi-

  meters. As in the previous embodiment, the

  measuring means 101 can be kept out of the path

  roof of the product by pulling on the cable 110.

  FIG. 6 shows another example of

  realization of a spreader according to the invention. The spreader represents

  felt in FIG. 6 is similar to that of the examples of reali-

  previous station. In the device according to FIG. 6, the

  gane spreader 116 is however otherwise arranged on the spreader.

  The spreading member 116 rotates around the axis 117, to which it is fixed and which rests in the gear boot 118. The assembly

  can tilt relative to the frame 4, around a horizontal articulation axis 119. Near this articulation axis 119 is available

  posed a locking mechanism 120, which is not shown in more detail and by means of which the spreading member as well as the axis 117 and the gearbox 118 can be fixed in several different positions around the axis of rotation 119

relative to the frame 4.

  In this exemplary embodiment, the measurement means 121 are coupled to the rear end of the hopper 9. They

  include a support rod 122, suspended for example from the rear

  hopper, so that the measuring means

  are fixed relative to the spreader during operation.

  The measuring means 121 comprise a detector 123, which is connected, by means of wires 70, to an indicator which is placed near the driver of the tractor. The support rod 122 and the detector are arranged in such a way that when the spreading member 116 is parallel to the ground 15, the product is projected parallel to the

  ground and the detector comes into zone 124. The position of the

  spreader gane 116 parallel to the ground 15 can be adjusted by the connecting rod 57. The height of the spreading member above the

  floor can be adjusted by the lower connecting rods 7.

  In the horizontal position, the product will strike the detector 123 in the zone 124. From this position, the spreading member can be tilted around the articulation axis 119, to take the position shown in dotted lines on the figure 6. In this position, the product will be projected according to the trajectory and will strike the detector in the zone 26. The zone in which the product strikes the detector, gives, as in the preceding examples of realization, an indication on the direction of projection and so on the spreading distance. In this exemplary embodiment, it is not necessary to completely tilt the spreader by modifying the length of the upper link 57 in order to tilt the spreader member. This advantageously makes it possible to deposit the measurement means in a simple manner on the spreader, so that they are fixed relative to the base of the device. Due to the fixed position of the detector 123 relative to the frame 4, any change in the position of the spreader member 116 relative to the frame will be indicated by the

  detector. If, after testing, the detector is no longer needed

  it can be easily removed by unhooking the carrier from the upper part of the hopper. If necessary, the exemplary embodiment according to FIG. 6 can also be produced in such a way that the detector can articulate from a working position, shown in FIG. 6, towards a rest position, in which it does not is no longer in the

product trajectory.

  The measuring means according to the invention can be

  successfully applied in each type of rotary spreader. What-

  that in the previous exemplary embodiments we have always shown spreading members which can rotate around axes

  of rotation directed upwards, the means of mesuii according to the

  vention can be used, for example, also in spreading devices, which move around an axis. In particular

  when the product is spread by the spreader towards the rear

  In comparison with the normal direction of travel, the measuring means can be applied successfully. If the detectors are used, these must be arranged in such a way that they are always in the path of the product. The measuring means can be applied especially successfully in devices in which the product is brought eccentrically relative to the axis of rotation of the spreading member therein, so that the product is spread over a certain sector around

of the axis of rotation.

  FIG. 7 schematically represents an exemplary embodiment of a spreading device 130, provided with two members

  spreaders 131 and 132, which can rotate around a rotational axis

  tion, directed upwards. As in the examples of realizations

  tion, the product is brought eccentrically to the spreading members, so that it is spread by each of the

  spreading members on a sector 133 around their axis of rotation

  tion. In FIG. 7, two measurement means with detectors 134 and 135 are shown diagrammatically. Detectors 134

  and 135 are each located substantially in the middle of the

  spreading 133 of each of the spreading members 131 and 132. It is however also possible to arrange the detectors more towards the edges of the spreading sectors 136 or 138. It will however be advantageous to keep the detectors at a certain distance from these edges 136 or 138 to obtain good measurements, since the number of grains which is scattered per unit of time near the edges 136 or 138 is generally lower than on the most central part of the sectors 133. In the embodiment according to the figure 7 are shown two spreading members, but it goes without saying that in spreaders with a single spreading member, the detectors are arranged in the same way and preferably

  in the middle of the spreading sector. In an example of reali-

  sation as in FIG. 7, with two spreading members, of which

  sectors overlap for a large part, we can use

  instead of two means of measurement with one or more detectors

  sensors, a single means of measurement with one or more detectors.

  The detector can be located, for example, in the middle of the device.

  positive, so that this one, seen in plan, is approximately

near the longitudinal axis 137.

  The invention is not limited to what has been explained

  in the description, but also concerns the details of the figures,

whether or not they have been described.

Claims (19)

  1. Spreader comprising a frame and at least one spreading member, the spreading member being adjustable by   relative to the surface to be spread in such a way that the   tance on which the product is spread can be adjusted,   characterized in that the spreader is provided with measuring means   re, with which at least the position of the spreader relative to the surface and / or the spreading distance can be easily attached. 2. Spreader according to claim 1, characterized in that the measuring means comprise members, with which the angle of the spreader member relative to the plane can be adjusted. 3. Spreader according to claim 2, characterized in that the measuring means comprise two spaced legs   each other in the direction of advancement, and with the-   which the height above ground of parts, located some distance from each other, of the spreader can be measured. 4. A spreader according to claim 2 or 3, character-   laughed at in that the legs are pointing upwards and in that that at least one of them can be adjusted in length.   5. Spreader according to one of the preceding claims. tes, characterized in that, to fix the position of the spreading member relative to the surface and / or the spreading distance, the measuring means can be set from a position   working towards a rest position. 6. Spreader according to any one of the claims. tions 2 to 5, characterized in that a leg or its extension extends practically along a coupling point of the span   deur to the lower connecting rods of the lifting device of a tractor tor. 7. Spreader according to any one of the claims. tions above, characterized in that the measuring means comprise a practically horizontal support rod, which is fixedly fixed to the frame and at the ends of which are arranged the legs. 8. Spreader according to any one of the claims. 1 to 6, characterized in that the measuring means are   arranged so that they can move at least partially - on the frame.   9. A spreader according to claim 8, charac-   séeen that the measuring means are articulated to the frame and that the articulation axis is located at least near the point of coupling to the lower connecting rods of the device lifting a tractor. 10. A spreader according to claim 9 or 10, charac- terized in that the parts, which are articulated to the frame, of the measuring means, cooperate with parts arranged on the frame, of the measuring means, all so that the adjustment   mutual of these parts of the measuring means indicate a rota- tion of angle relative to each other during a relative 1S movement of the spreader relative to the parts of the measuring means.   11. Spreader according to one of claims 1 to 10, characterized in that the parts of the measuring means available   so that they can move relative to the frame, including carry at least one leg with which the distance of one part   tie from the device to the ground can be measured.   12. A spreader according to any one of the claims. tions, characterized in that the measuring means comprise a detector which, during spreading, is in the path of the product and extends at least partially in the height direction, while the detector indicates the   areas of the detector struck by the product.   13. A spreader according to claim 12, characterized in that the detector is attached to a leg.   14. A spreader according to claim 12 or 13, ca-   characterized in that the detector is arranged on one leg articulated to the spreader.   15. A spreader according to any one of the claims.   tions 12 to 14, characterized in that two detectors have been arranged which are located some distance from each other in the direction of product ejection. 16. A spreader according to any one of the claims.   tions 11 to 15, characterized in that a detector is coupled to a support member, so as to articulate around an axis   of practically horizontal articulation.   17. A spreader according to any one of the claims.   tions 11 to 16, characterized in that a wire or similar connecting member is placed on the measuring means, which leads to a driver's seat and with the aid of which the detector can be placed in the rest position. 18. Spreader according to any one of the claims.   tions 11 to 17, characterized in that the detector is connected to a indicator which can be placed near the driver's seat. 19. Spreader according to any one of the claims.   tions II to 18, characterized in that the detector has a measurement plane enabling it to measure the number of grains per unit of   surface and thus giving an indication of the quantity of material re spread per unit area.