FR2495433A1 - RICE BABY FOOT - Google Patents

Abstract

THE TECHNICAL FIELD OF THE INVENTION IS THAT OF THRESHING OF RICE ON FOOT. THE TECHNICAL ISSUE CONSISTS OF PROVIDING A RICE THRESHER ON FOOT ADAPTING TO ALL HEIGHTS OF CEREALS. FOLLOWING THE INVENTION, SUCH A THRESHING MACHINE INCLUDING A CASE 1 INSTALLED ON A WHEEL VEHICLE AND AT THE FRONT OF WHICH IS LOCATED A FRONT THRESHING DEVICE WITH BEATER 3 MECHANICALLY DRIVEN AND COUNTER-BATTER 4, IS CHARACTERIZED IN THAT MEANS 29, 30, 31, 34 ARE PROVIDED FOR ADJUSTING THE THREADER 3 BOTH IN POSITION AND IN ORIENTATION WITH RESPECT TO THE COUNTER-Beater 4. THE INVENTION IS MAINLY USED FOR GELING THE RICE ON FOOT.

Description

Rice stand on foot.

  The present invention relates to standing cereal threshing machines, in particular for harvesting rice, of the type comprising a box installed on a wheeled vehicle and in front of which is located a front drum device.

  mechanically driven and concave beater stage.

  Currently, around the world, nearly two-thirds

  Most of the population feeds on rice.

  Almost everywhere this grain is harvested by cutting the stems at their base, by hand, with sickles, which is a painful operation, tedious and which requires a lot of

time, while being unprofitable.

  It is also known to use, in a few

  modern paddy fields, important machines of the Môisson-

  caterpillar trackers. But this type of machine - besides

  implementing the cutting operation of the rods -

  can only be used in modern, large and well-equipped farms, and is also easily subject to

  get bogged down in the totally wet ground of the rice fields.

  In all cases, a large percentage of grain is lost on the soil and / or in the water of the rice fields during the cutting operation of the stems because of the very great fragility of the grains on the ears, and in addition the conditions may vary greatly depending on the maturity of the grain, its variety, the height of the ears, soil condition, moisture, etc., which requires threshing. Indeed, not to cut the stems, the drummer must not be too close to the concave, but it must not be too

  to be too wide apart to ensure the threshing of all the ears.

  This is why the present invention aims to

  provide a machine of the aforementioned type, which is very manoeuvrable and

  reduced, which does not require-the implementation of

  the cutting operation of the stems, while removing the incon-

  current processes and allowing a very improved harvest yield through almost complete collection of all rice grains, in all

possible working conditions.

  For this purpose, the subject of the invention is a standing cereal thresher of the aforementioned type, characterized in that there are provided means for adjusting the beater both in position

  in orientation and relative to the concave.

  Thanks to this arrangement, it is possible not only to adjust the height of the beater above the concave, but also to adjust the axis of the beater vertically, forward or

  behind the front edge of the concave, that is to say,

  ultimately, a setting of the optimal service action

  rage of the stems between the beater and the concave, according to

the present conditions.

  In one embodiment of the invention, the

  The beater adjusting means are of the sliding or sliding type

  associated locking sockets and bolts allowing two types of adjustments approximately perpendicular to each other in a vertical plane, which allows combined adjustment by translational displacement and rotational displacement of the axis

drummer.

  Advantageously, recessed slides are provided.

  lines formed in lateral supports of the drummer and arched bow-shaped slides cutting approximately at right angles to the preceding ones and arranged in studs

  side of the box on either side of the counter

  drummer and arranged externally in the immediate vicinity of the drummer supports, said uprights and supports being connected

  between them by means of locking bolts engaging in the

smooth.

  In addition, according to the present invention, the counter

  drummer is constituted by an articulated plate at its front edge on the body and comprises elastic adjustment means permanently bringing tangency position by

  relative to the external contour of movement of the bats of the bat-

  tor. This results in an important advantage for obtaining a correct threshing of the grains, since said adjustment means -3-

  provide the concave the necessary elasticity

  during the passage of the rods to beat, while reducing

  permanently in its set position relative to the bat-

  tor. In a preferred embodiment, the concave plate adjusting means may be constituted

  by a pressure of compression pushing the plate towards the bat-

  tor. But, according to an alternative embodiment, they can be constituted by a tension or compression spring

  mounted between the non-articulated end of the plate and the

  top of the box so as to pull the plate towards

  the drummer and having a tension adjusting screw.

  Other features and advantages of the invention

  will be apparent from the following description,

  non-limiting examples, and with reference to the accompanying drawings in which

  FIG. 1 is a side elevational view

  Schematic diagram of the machine according to the invention; FIG. 2 is a detailed view of the machine of FIG. 1; FIG. 2A shows a detail variant of a part of the machine of FIG. 2; FIG. 3 shows a front view of the machine of FIG. 1;

  FIG. 4 shows a top view in section through

  part of the machine of FIG. 2; FIG. 5 represents the different phases of

  the threshing operation, carried out with the

  China of FIG. 2; - Figs. 6 and 7 show two alternative embodiments of the beater of the machine of FIG. 2; FIG. 8 shows a system for lifting spur paid, usable in the machine according to the invention;

  FIG. 9 schematically shows a system

  capping to prevent crushing ears by the machine according to the invention; Figs. 10 and 11 schematically illustrate the installation of the machine according to the invention in the case of animal traction; FIG. 12 shows the installation of the machine according to the invention on a tiller; - Figs. 13 and 14 show the installation of the

  according to the invention, respectively in

  side and on a tractor; FIG. 15 represents a variant embodiment

  of the elastic adjustment system of the machine's concave

  China of FIG. 2; FIG. 16 is a plan view of an alternative embodiment. The machine, shown in a schematic side elevational view in FIG. 1, consists essentially of a metal box 1, open at its front and on the top and intended to receive the grains, here the rice grains, separated from their rods by threshing, which is performed by a threshing device 2 which is mounted on the front part - in the direction of movement - of the machine 1. This device 2 is composed of a drummer 3 arranged appropriately above a concave 4 integral with the body 1, so as to obtain the best threshing possible. As will be seen in more detail in the following figures, the mixer comprises blades or bats intended to provide threshing

  grains carried by ears 6, represented very schematically

  on the floor 7. At the rear, the body 1 has

  a grain entrainment system 8, a guiding device 9,

  grain and a final storage device 10 of these

  latter, which is represented in the form of a container

  It is mounted on a chassis It is mounted on wheels 12 and secured or towed

  by a vehicle on wheels not shown. Cashier 1 is

  stained on the chassis 11 by means of coupling bars, possibly adjustable, 13, at its upper part and by a system 14 to

  cylinder, hydraulic or electric, of lift and

  glage in height of the box. There is also shown on the front edge of the machine a system 15 for separation or lateral separation of the ears 6, preventing the crushing of

  some ears by the wheels of the vehicle.

  In Figs. 2 to 4, which represent more

  the realization given by way of example of the invention

  tion, the same reference figures have been kept

  FIG. 1 to designate the same parts.

  The mixer 3 is mounted on a longitudinal axis 16 transverse to the direction of movement of the machine and driven by a device symbolized by a pulley 17 and suitable for the various types of machines and traction modes implemented as will be seen later. . It comprises at each of its ends and in its transverse median plane sets of spokes shaped angles 18 equidistant to 450 and whose ends bear blades or bats 19 for threshing grain. These bats are

  preferably formed by vegetable fiber brush brooms

  the, plastic or any other material, to "comb" the ears 6 carrying the grains to separate them without crushing. According to an alternative embodiment shown in FIG. 2A, the 19A bats can be too

  consisting of wooden bars or metal bars

  and may even have cross-sectional shapes, varying according to the nature of the grain to be beating. The

  19 or 19A bats are also attached to the respective angles

  18 by suitable fasteners, for example bolts designated by the reference 20. In addition, according to an alternative embodiment, the brush-brushes or combs 19 can be mounted on the brackets 18 by means of slides allowing

  compensate for brush wear by moving them outwards.

  By way of non-limiting example, the drummer can

  have a width of the order of 1 m - 1.50 m, or more, posse-

  der 8 bats and turn at a speed between 100 and

500 rpm.

  The concave 4, which is mounted at the front part of the lower edge of the box 1 below the drummer

  3, is constituted by a rigid metal plate 21 extending

  across the width of the cabinet and hinged at the front

  horizontally hinged 22. This plate 21 is now

  nude in position of tangency with respect to the outer contour -6- movement of the bats 19, identified by the reference 23, the

  by means of a compression spring 24 of appropriate power

  the seeds to be harvested and which is mounted between said plate and the floor of the box 1, or outside the box, which also allows to give the desired elasticity to the concave during the passage of the rods. beat. At its

  rear part concave 4 has a bellows

  25 diagrammatically, which extends over the entire width of the counterburner by closing the space between the plate 21 and the box 1 towards the rear, which thus prevents the

  harvested grain to get into it. In addition, this bellows con-

  a travel limiter of the plate 21, depending on the

  harvested grain. In the preferred embodiment

  felt, the plate 21 has a rear edge 26 folded towards

the bottom.

  In addition, at the front of the concave 4 and

  therefore from the box 1 there is a leading edge arround-

  di 27, on which the rods 6 slide and bend without breaking. On the lateral ends of the box and at the level of this leading edge is located the system 15 of

  separation or lateral separation of the ears.

  We will now describe the fixing means of the mixer 3 above the concave 4 and the body 1,

  means also enabling adjustment in position and orientation

  the drummer in relation to the concave and the box.

  At the lateral extremities of its horizontal axis

  zontal 16, the drummer 3 is carried by two elongated supports

  and plates 28, which comprise a longitudinal light or slide

  rectilinear dinal 29, in which the axes of

  two bolts 30 and 31 that can slide in and that connect each

  each of the drummer supports 3 to fixed lateral uprights

  32 which are integral with the box 1 being for example

  dice on a crossbar 33 for strengthening the body and

  tighten the concave 4. As shown in FIG. 2, these amounts 32 are slightly inclined towards the front of the machine. They each comprise a curved arc-shaped slot or slot 34 in which the bolt 31 engages and at their upper end a non-designated hole in which the bolt 30 engages. As this is

  visible, when the drummer is mounted above the counter-

  drummer, in a desired operating position, the slides 29 and 34 intersect approximately at right angles. The bolts 30 and 31, which are able to withstand rotational forces, make it possible to lock the supports 28 in position relative to the uprights 32 and therefore the mixer 3 relative to the box 1 and to the concave 4, which in turn is

solidarity.

  To adjust the mixer 3, we see

  that one can act separately and / or simultaneously from two

  on the one hand, the supports 28 can be moved in trans-

  parallel to themselves on a stroke determined by the length of the slide 29 and the positions of the bolts 30 and 31, and secondly, one can move said rotatable supports by means of a pivoting of the supports relative to the 32 uprights, which is allowed by a sliding bolt 31

  in the backstage 34. Thus, it is possible to adjust both

  and in orientation the drummer 3 with respect to the counter

  beater 4, and thus align the axis 16 of the beater at the level of

  leading edge 27 or withdrawing from the latter, on a

  about 5 to 6 cm, and adjust the opening between the

  turn of the bats and the concave at a distance

  they are between 0 and 20 mm. On important machines of motor-cultivation, one can provide automatic adjustments using for example electric screw jacks or hydraulic,

not shown in the figure.

  According to the invention, the body 1 further comprises in its rear part 8 grain drive system, which are projected by the bats on the rear wall of the body, which can serve as a storage hopper. Preferably the system 8 is formed by a transverse Archimedean screw,

  also shown in plan view in FIG. 4 and training

  35 by a belt 36 from a hub mounted on the axis 16 of the mixer 3. A sealing cover 37, formed of a thin metal sheet or a plastic-plastic cover, prevents the projection of grains out of the box and has at the front a deflector edge avoiding a grain projection

  forward. Laterally on the side of the box 1 is in-

  mounted a device 38, of the rotary blade type 39, driven by a belt 40 from the axis 16 of the mixer and driving the grains brought there by the Archimedean screw 8 by propelling them in a device of chute-shaped guide 9 to a double unloading hopper 41 (see Fig. 1) above a container 10. In this system, a fan may also be provided to eliminate

  small straws dry, not shown in the drawing.

  Hereinafter, we will explain the operation of the

  machine according to the invention, with reference to FIG. 5. When

  that the machine is in front of the rods 6 (phase 1), the rounded leading edge 27 meets the rods 6 at about 15

  cm below the ears and the bats 19 turning in the direction

  clockwise (at a speed of about rpm) the spikes on the concave 4. In the next phase (phase II), the drummer 3 squeezes the stems on

  the elastic concave 4 and the 19 "brushes

  The spikes are separated by separating the grains and throwing them backwards Finally, during the last phase (III), the bare stems 42 are pulled forwards out of the box, under

  the effect of the advance of the machine. The detached and

  thrown into the crate are then dragged as indicated

  cédemment. According to the invention, different types of drummers can be provided depending on their height or their resistance on the rods, as illustrated in FIGS.

Fig. 6 and 7.

  Fig. 6 shows a drummer positioned above the

  concave 4 and having two drums 43 around the

  which circulates a carpet, or straps 44 provided with bats 45,

  in the direction of the arrow 46. Such a device is used

  when it is necessary to go for the rods very forward of the leading edge 27 or when the speed of advance is very important. In this device, provision can also be made for

  means not shown for adjusting the front drum, at the

desired.

  Fig. 7 shows a drummer with three drums 47, around which circulates a carpet 48 provided with bats 49 in the direction of the arrow 50. This system is suitable for high plants, which require an effective folding in

the concave entry.

  In FIG. 8, there is shown the front part of the body 1 of the machine according to the invention, on the front edge 27 of which is mounted an articulated device 51 for lifting the

  ears 6, when they are paid. This device is

  mandated by means of a suitable linkage 52 connected by

  for example, to a lever 53 fixed to the body 1.

  Fig. 9 shows a plan view of the system from

  separation or spreading of the ears in the direction of advance-

  ment (arrow 54), again referred to as splitting finger avoiding

  grind with the wheel of the machine.

  Hereinafter, reference will be made to FIGS. 10 to 14 different modes of mechanical or animal traction of the

  machine according to the invention and the various drive systems

  drummer associated with it.

  Fig. 10 shows the lateral installation of the machine according to the invention in the case of animal traction by one or two horses. The body 1, mounted on wheels 55

  is secured to a frame 56 moved via a system

  appropriate coupling system 57, shown schematically, to a horse (not shown) between the two coupling stretches 58, 59, or to two horses between the coupling stretches 58, 59, 60. The drummer 3 is driven by its axis 16 by a chain with detachable rollers or links 61 with power take-off on the rotating axle of the wheels 55. In the Figure, the mixed lines relate to the case of a larger machine, driven by two horses. Instead of a machine with a width of 1.30m

  in the case of a horse pull, one can have one

  China with a width of 2.50 m towed by two horses.

- 10 -

  Fig. 11 illustrates the case of the machine according to

  vention, towed in the rice field by two oxen, the system of

  telage comprising in this case a yoke 62, the training of the

  drummer being the same as in the case of FIG. 10. The

  china is arranged laterally and may have, for example, a front width of 1.10 m. The machine driven by the oxen can be mounted on skates instead of wheels. In this case, so as not to be dependent on the speed of advance

  animals, an independent motor could however be

  mounted on the body 1 and whose shaft (Figures 1 to 3)

  the drummer axis 16, not directly, but through the pulley 17 (Figure 3) and a transmission

  by chain or belt. One can also realize the training

  by means of a hydraulic transmission with

  pump (not shown), making it possible to obtain a range of

  speeds of 50 to 700 rpm.

  Fig. 12 represents the case of a mechanical traction

  a tiller 63, including a 64-door chassis at the front

  the box 1 and the drummer 3, which is driven through the

  a belt transmission 65 and circulating on the pulley 17 of the axis of the mixer and on a pulley 66 integral with the power take off of the tiller. In this variant, the machine may have a width of 70 to 80 cm. We can foresee

  a slack adjuster for the position of the beater.

  Figs. 13 and 14 respectively represent the case where the machine according to the invention is mounted on a tractor

  agricole68 in frontal position and in lateral position.

  In the first case (Fig. 13) the drummer 3 is

  trailed by PTO at 69 on the tractor engine at the

  pulleys 70, 71, a belt 72 and a transmission

  sion comprising a transmission shaft 73 and a sliding cardan 74, shown schematically. We can also

  provide a hydraulic drive system, not shown.

  We can have in this embodiment a machine with a width

from 1 to 3 meters.

- he -

  In the case of FIG. 14, the drummer 3 is

  dragged from the PTO 69 by the same system 70,

  71, 72 that in the case of FIG. 13 with courier systems

  ries and pulleys (75, 76, 77), or by a system of sliding shafts and angle

  as for the training of the Archimedean screw 8.

  It is obvious that the threshing machine described above

  can be coupled and driven by a tractor or even be realized in the form of a self-propelled

nothing to change to the invention.

  Fig. 15 shows finally an alternative embodiment of the elastic adjustment system of the concave 4 of FIG. 2. Here, we use a tension or compression spring hooked between a point at the top of the body 1

  and the upper rear end of the counter plate 21

  drummer, and that can be adjusted manually using a

screw 80.

  In the machine according to the invention, the plate 21 of the concave can be, in addition, cellular or rough and of a rounded shape better enveloping the drummer, in the case

  difficult hitting in order to increase the power of

  tying and retaining the concave.

  According to a last embodiment such as

  presenzed in FIG. 16, the two fixed side posts 32 asso-

  1 to the supports 28 of the mixer 3 are integral with the body 1 by the crossbar 33, the assembly passes through 33, cons-mixer 4 and mixer 3, being mounted oscillating on a hinge 81 so that the mixer and the counterbeater can be brought together at different levels relative to the ground, by the angular displacement of the crossbar 33 around the hinge 81. The tilting or raising of this drummer / concave combination thus makes it possible to adjust the position of the rounded leading edge 27 in order to adapt it to the height of

  cereals and in particular ears of corn. Moving and locking

  the support beam 33, in all relative positions, can be provided by any known commercial body, such as lever 82, rack, toothed sector, worm, jack

- 12 -

  or the like. As a result, the operator has two settings that can be combined (angular mobility of the set

  drummer / concave compared to the box - and moves

  3, relative to the concave 4, because of the lights 29 and 34. This double adjustment thus makes it possible to accurately position the leading edge 27 relative to the

  height and the nature of the cereals.

- 13 -

Claims (20)

  10. Stand-mounted cereal-thresher, particularly for the harvesting of rice, of the type comprising a crate (1) installed on a vehicle on wheels and in front of which is located   a drummer drumming device (3) driven mechanically   nically and concave (4), characterized in that there is provided means (29, 30, 31, 34) for adjusting the mixer (3)   both in position and orientation with respect to the counter drummer (4).   20. Combine according to claim 1, characterized in that the mixer (3) and concave (4) is mounted oscillating relative to the body (1), this assembly being   set and locked in the selected angular position   the height and the nature of the cereals, by means known per se.   30. Combine according to any one of the claims   1 and 2, characterized in that the two settings of the   on the one hand, the drummer and concave, on the other hand, are combined to position the leading edge (27) of the concave (4).   40. Combine according to claim 1, characterized.   in that the adjusting means of the beater are of the type to be   slats (29, 34) and associated locking bolts (30, 31)   setting two types of settings approximately perpendicular   to each other in a vertical plane.   50. Combine according to any one of the claims   1 to 4, characterized in that rectilinear slides (29) are provided in lateral supports (28) of the beater (3) and bow-shaped slides (34) arcuate at approximately right angles. the preceding ones and arranged in lateral uprights (32) integral with the   body (1), on both sides of the concave (4), and   placed externally and in the immediate vicinity of the supports (28) of the mixer, said uprights (32) and supports (28) being interconnected by the locking bolts (30, 31) engaging in the scenes (29, 34). - 14 -   60. A beater according to any one of the claims   1 to 5, characterized in that the concave (4) is constituted by a plate (21) articulated at its front edge on the body (1) and comprises elastic adjustment means (24, 29). bringing it permanently into a position of tangency with respect to the outer contour (23) of displacement bats (19) of the drummer (3).   70. Combine according to claim 6, characterized   in that the means for adjusting the plate (21) of the counter-   drummer (4). consist of a compression spring (24)   pushing the plate towards the beater (3).   80. Combine according to claim 6, characterized in that the adjusting means of the concave plate   are constituted by a tension spring (79) or compres-   mounted between the non-articulated end of the plate (21) and the upper part of the box (1) so as to pull the   plate-to the mixer (3) and having a screw (80) for tension.   9. Combine according to one of claims 7 or 8,   characterized in that a bellows (25) is provided at the rear end of the counterburetor (4) closing the space between the plate (21) of the concave (4) and the floor of the body (1).   Drummer according to claim 9, characterized   in that the bellows (25) serves simultaneously as a limiting member   movement of the plate (21) of the counter- drummer.   110. A thresher according to any one of the claims   1 to 10, characterized in that the leading edge (27) provided at the front of the concave (4) is rounded and is formed of a cylindrical bar on which the ears are coated (6). during the advance of the threshing machine.   12. A beater according to any of the claims   1 to 10, characterized in that the bats (19) are   constituted by brush brooms or combs with vegetable fibers   plastic or any other material. - 15 -   130. A thresher according to any of the claims   1 to 11, characterized in that in the case of ota the   is mounted on a tiller (63), the drive of the mixer (3) is made from a power take-off by a belt transmission (65) with catch-up tensioner position of the drummer.   14. A beater according to any of the claims   1 to 12, characterized in that, in the case where the   is mounted on the front of a tractor (68), drives it   the drummer (3) is made from a PTO   (69), by a transmission shaft (73) and a motor system. in sliding (74).   150. A thresher according to any one of the claims   1 to 12, characterized in that, in the case where the   is mounted laterally on a tractor (68), drives it   drummer (3) is made from a PTO   (69) by sliding shafts and angle gears (78).   160. A thresher according to any one of the claims   1 to 12, characterized in that, in the case where the   is driven by animals, the driving of the beater (3) is carried out by a roller chain or link chain (61) with power take-off on the rotating axle of the wheels (55) or   by a motor mounted on the body (1) and causing the belt drive.   170. A thresher according to any one of the claims   1 to 16, characterized in that it is carried out under form of a self-propelled vehicle.   180. A thresher according to any one of the claims   1 to 17, characterized in that it comprises a device   tif (51) for lifting the ears, articulated at the level of   front edge (27) of the concave (4).   190. A thresher according to any one of the claims   1 to 18, characterized in that the body (1) has a   device (14) for levitation and height adjustment connected   rope between the rear of the body (1) and the vehicle on   wheels and formed for example by two electrically actuated cylinders   tric or hydraulic (type three points for example). - 16 -   200. A thresher according to any one of the claims   1 to 19, characterized in that the box (1) comprises, in its rear part, a grain drive system, for example an Archimedean screw (8), and a rotary blade lift system or a system pneumatic (38, 39) driving   grains, from the Archimedes screw (8), in a   burbot (9) in the direction of an evacuation hopper (41).