FR2768415A1 - Elevator conveyor for loading goods vehicles - Google Patents

Abstract

The conveyor (6), having a moving endless belt, is pivoted both horizontally and vertically at its near end to a chassis (2) and has a control cab (7) with a place for an operator at its far end. The conveyor has a telescopic section (61) at its far end and mechanisms (4, 33, 41) for turning it about its horizontal axis (20) to raise and lower the far end and control cab and extend and retract the telescopic section at the same time. The control mechanisms include a hydraulic power cylinder (33) and are mounted on a carriage (3) which travels along the chassis and also controls the position of the telescopic section by means of an angled lever (4) and a peg (41) sliding in a slot (63) on each side.

Description

DEVICE FOR CONVEYING AND LIFTING ARTICLES FOR
LOADING A VEHICLE
The present invention relates to a device for conveying and elevating articles, in particular live poultry, for loading a vehicle intended to receive them.

 This invention was conceived and developed within the framework of a particular application, namely the collection of turkeys and / or turkeys on the breeding grounds, for their caging on collecting vehicles, these in front then take them to a slaughterhouse.

 It goes without saying, however, that the invention can find application for the collection of other poultry than turkeys.

 It can also find application in fields other than animal husbandry, for the collection and loading, or even for the unloading, of different articles and products, live or not.

 Turkeys and / or turkeys are poultry of relatively large size and weight when they are old enough to be slaughtered.

 As an indication, the males (turkeys) have a mass of the order of 18 to 20 kilograms, while the females (turkeys) have a mass of the order of 12 to 14 kilograms.

 Traditionally, these animals are collected on the breeding grounds to put them in cages on trucks - freestanding or semi-trailer - specially designed for this purpose.

 The collector vehicle comprises two sets of cages arranged laterally and symmetrically, on either side of the vertical longitudinal plane of the vehicle.

 Each cage has the shape of a rectangular parallelepiped, and each set comprises several rows of superimposed cages; thus, a freestanding truck generally has on each of its sides seven rows of seven cages. It therefore has a total of ninety-eight cages.

 The cages open on the side, and the truck is loaded first by one side, then, when this side is full, by the other side, after the truck has turned around.

 The operation of loading turkeys or turkeys onto the truck is an extremely painful and delicate operation, due to the weight of the animals and their often aggressive behavior.

 To the knowledge of the applicant, there is no suitable collection device on the market to facilitate this type of operation.

 This is why, the object of the present invention is to propose this kind of device, allowing, in a simple and convenient manner, the conveying of turkeys from the ground, and their caging on the truck.

This objective is achieved, in accordance with the invention, thanks to the fact that the device comprises:
- a horizontal frame;
- an elongated conveyor articulated at one of its ends, called upstream, to the chassis around a horizontal and transverse axis, this conveyor comprising a movable endless belt capable of supporting and transporting the articles from this end to the other end , called downstream;
- at least one nacelle mounted at the downstream end of the conveyor, on one side thereof, and capable of receiving an operator;
- Control means adapted to rotate the conveyor about said axis so as to be able to bring and maintain said downstream end as well as said nacelle at different heights.

Furthermore, according to a number of additional, non-limiting characteristics of the invention:
- The conveyor comprises a telescopic downstream part, movable in translation, in the longitudinal direction, relative to the upstream part;
- Said control means are arranged so as to carry out simultaneously the axial displacement of the telescopic part and the pivoting of the conveyor, so that the downstream end of the latter remains substantially in the same vertical plane regardless of its inclination;
- Said control means are controlled by a hydraulic cylinder;
- Said control means are carried by a carriage mounted to move axially on the chassis, and the displacement of which makes it possible to move the telescopic part without - or practically without - modifying the inclination of the conveyor;
- Said control means comprise - on each side of the device - a bent lever, one end of which is articulated to the chassis - or to the carriage carried by it -, and the other end of which carries a sliding finger in a slot in the upstream part of the conveyor and integral with the telescopic part;
- The device comprises means for maintaining constant - or substantially constant - the attitude of the nacelle, whatever the inclination of the conveyor
- The device, on the one hand, comprises a deformable parallelogram, one of the long sides of which is materialized by said bent lever and the other by a connecting rod, while the short sides correspond, one to an integral part of the chassis or the carriage, and the other to a link and, on the other hand, that said nacelle is articulated to the telescopic part and connected by a traction cable to said link;
- The device comprises a pair of nacelles, located on each side of the conveyor, and at least one of which is equipped with a control console allowing the operator who is there to control the pivoting of the conveyor around its axis and, if necessary, the axial displacement of the telescopic part and the displacement of the carriage, as well as the control of the endless belt;
- The conveyor has at its upstream end, an auxiliary part bearing on the ground, and whose inclination is normally fixed relative to the chassis;
- The conveyor is equipped with a cover giving it the general shape of a tunnel, the height of which decreases from upstream to downstream;
- the device is a trailer, the chassis being mounted on wheels
- In one possible embodiment, this device is intended for picking up turkeys and / or turkeys on the breeding grounds, and for placing them in cages on collecting vehicles.

 Other characteristics and advantages of the invention will appear from the description and the appended drawings, which represent, by way of non-limiting example, a preferred embodiment of the device.

In these drawings:
- Figures 1 and 2 are schematic views which show a turkey and / or turkey collector truck, viewed from the side and at the end respectively;
- Figure 3 is a view similar to Figure 2, intended to show the inclination of the truck when loaded from one side only;
- Figure 4 is a general and schematic front view of the device, shown on site during a loading operation of turkeys and / or turkeys (not shown) on a breeding site, for loading a collector truck such as that shown in Figures 1 and 2
- Figure 5 is a view similar to Figure 4, showing the device at a lower degree of inclination than in Figure 4;
- Figure 6 is a view similar to Figure 4, showing a slightly retracted position of the nacelle relative to the truck;
- Figure 7 is an end view, partially in cross section, of the downstream end of the conveyor equipped with its nacelles;
- Figure 8 shows the mechanism for controlling the pivoting of the conveyor and the movement of its telescopic part;
- Figure 9 is a diagram of the endless belt fitted to the conveyor, this view being intended to show the various drive and guide rollers of the belt, Figure 9 corresponding to a situation in which the telescopic part is in position maximum extension;
- Figure 10 is a view similar to Figure 9, but corresponds to a retracted position of the telescopic part.

 The drawings in FIGS. 1 and 2 very schematically represent a truck intended for the collection of turkeys or live turkeys.

 This truck 1 has a body made up of a set of cages 10. These are distributed in two sets 10 a and 10 b juxtaposed, symmetrical with respect to the longitudinal vertical plane of symmetry of the vehicle.

 In each of these sets, the cages are arranged in several superimposed rows.

 As an indication, there are seven rows of seven cages.

 Each cage opens laterally thanks to a folding grid on the side of the vehicle.

 As an indication, the cages have a height "a" of 300 mm, a length "b" of 830 mm and a depth "c" of 1250 mm. This type of cage is suitable for receiving about six turkeys or ten turkeys.

 Traditionally, when collecting, we first load one of the two lateral sets of cages, and then the other set.

 FIG. 3 illustrates a situation in which the cages 10 a are filled with animals, as symbolized by a double diagonal line.

We understand that, due to the weight of the load on this side, the vehicle body tilts. Compared to a fixed reference object R located in height, on the opposite side, there is a distance from this lateral face of the body. This phenomenon is clearly apparent from the comparison of FIGS. 2 and 3, which show the increase in the distance e between said face and the reference object R, this dimension passing from e 1 to e 2
It will be understood, in the following description, how the device according to the invention makes it possible to adapt to this variable inclination of the body of the collection vehicle.

 Referring to Figure 4, we will now describe the device according to the invention.

 This device comprises a horizontal chassis 2, of elongated shape, mounted on wheels 21. This chassis constitutes a trailer, intended to be towed by a self-propelled vehicle, in particular by an agricultural tractor.

 The front of this trailer, that is to say its end by which it is intended to be coupled, corresponds to the right side of FIG. 4.

 On this same side, the chassis has a pair of feet for supporting the ground 22 (only one of which is visible in the front view of FIG. 4).

 The feet 22 make it possible to immobilize the trailer in the working position; they are, of course, retractable for transport.

 On this chassis 2 is mounted an elongated conveyor 6 which is articulated around a transverse axis 20 at the rear end of the chassis (opposite end to the feet 22).

 The conveyor 6 comprises a frame made of beams welded to each other, and supporting a movable endless belt 9, which is not visible in Figure 4, but will be described later with reference to Figures 9 and 10. This band conveyor has an upper strand and which moves to the left towards the right if we consider figure 4, while the lower return strand moves in opposite direction.

 The upstream and downstream ends of the conveyor therefore correspond to the left and right ends, respectively, of FIG. 4.

 The conveyor 6 is composed of several parts, designated from upstream to downstream by the references 64, 60, and 61.

 The part 64 is articulated relative to the chassis 2 and to the part 60, around the said axis 20. It is slightly inclined towards the rear so as to rest on the ground S by its upstream end, by means of a wedge 640 Thus, the entry of the conveyor is located at low height from the ground.

 The part 61 is telescopic, and can move axially, over a given stroke relative to the part 60, inside which it partially penetrates.

 The downstream end 610 of the part 61 is slightly inclined relative to the rest of this part; it forms an acute angle directed slightly downward with respect to the rest of the conveyor, at the outlet thereof. This inclination facilitates the transition from the conveyor to the collection truck.

 At this downstream portion 610, the conveyor carries a pair of nacelles 7, located on each side of the conveyor, as is particularly visible in the detail plane of FIG. 7.

 Each of these nacelles 7 to 7 b is freely articulated by an axis 70 on the frame of the part 61.

 Each nacelle 7 has a tab 71 directed upwards, near the frame of the conveyor; as will be seen below, this tab serves to ensure the constant, or approximately constant, maintenance of the attitude of the nacelle.

 Each gondola has a dimension adapted to receive an operator.

 As can be seen in FIG. 7, one of the nacelles - in this case 7 a is equipped with a console 700. As will be seen below, this console is intended for piloting the device by the operator who s is there.

 Between the part 60 of the conveyor 6 and the chassis 2 are installed means for controlling the pivoting of the conveyor - or at least parts 60 - 61 of the conveyor - around the axis 80.

 These means 3 comprise two identical mechanisms, located on each of the two lateral sides of the conveyor, and only one of which is visible in FIG. 4.

 Said means 3 essentially comprise a carriage 30, a pair of bent levers 4, a hydraulic cylinder 24, and a pair of hydraulic cylinders 33.

 The carriage 30 has, on each side, a pair of wheels 31 allowing it to roll on a pair of horizontal lateral rails 23 carried by the chassis 2.

 The movement of this carriage 30 is ensured by the jack 24, which is located inside the chassis, in a central axial position.

 The cylinder rod, which is arranged horizontally, is fixed to a connecting tab 301 secured to the carriage and directed downwards.

 This carriage carries, on each of its sides, a bent lever 4. The two arms of the lever form an obtuse angle, for example of the order of 100, and its top is directed upwards and downstream of the conveyor.

 The lever 4 is articulated, at the end of one of its branches, around an axis 40, on the carriage 30. This axis corresponds for example to the axis of the front wheels of the carriage.

 Each lever 4 is associated with a jack 33 for controlling its pivoting.

 The cylinder rod is articulated to the carriage 30, for example at its rear wheels 31, while the cylinder body is articulated to the lever 4, at its bent part, inside thereof.

 The end of the other branch of the lever 4 carries an axis - or finger - 41 which passes through an elongated lumen 63 formed in the side of the part 60 and integral with the part 61 of the conveyor.

 It is understood that thus, when the bent lever 4 pivots about its axis 40, under the action of the jack 33, the finger 41 will both rotate the assembly 60 - 61 around the axis 20, and slide in the lumen 63 by moving in axial translation the part 61 relative to the part 60.

 This is a particularly advantageous characteristic of the invention, which ensures the combination of the pivoting movements of the conveyor and the movement of its telescopic part 61, allowing the downstream end of the conveyor not to approach or s '' move away from the collection truck despite the variation in its inclination.

 The various constituent elements of the mechanism are dimensioned and positioned in such a way that the finger 41 (and, correspondingly the end 610 of the conveyor) remains constantly substantially in the same vertical plane, whatever the degree of extension of the jack 33.

 At the front of the carriage, on each side, is provided a tab 300 directed upwards, on which is articulated, around an axis 50, a connecting rod 5. Its opposite end is articulated on a rod 42 which can pivot around the axis 41 mentioned above.

 This link 42 is extended, beyond the axis 51, by an overhanging part carrying an attachment point 420 for a traction cable 8. The other end of the cable 8 is hooked, by a point 710, to tab 71 of nacelle 7.

 The weight of the nacelle constantly tends to make it rotate - downwards and downstream - around the axis 70, but it is retained by the cable, and kept in an upright position (horizontal bottom).

 According to a remarkable characteristic, the distances between the points 40-50 on the one hand and 41-51 on the other hand, as well as their directions X and Y, respectively, on the other hand, are identical.

 Points 40, 50, 51, 41 therefore form the four sides of a deformable parallelogram, and the axes X, Y remain constantly parallel to each other regardless of the inclination Q of the conveyor relative to the chassis. .

 In the same way, the points 70 and 710 are chosen so that their orientation Z is the same as the orientation Y, and so that their mutual spacing is the same as that of points 41 and 420.

 It is therefore the three directions X Y and Z which remain constantly parallel, whatever the degree of pivoting of the conveyor.

 The conveyor 6 has a cover which covers its upper part to constitute a tunnel. This cover is formed of a metal frame on which are fixed plastic plates, for example polyester.

 According to an advantageous characteristic, the height of the tunnel decreases from one end to the other of the conveyor.

 In FIG. 4, this cowling is shown in broken dashed lines. The upstream portion 64 has a cover 600 of relatively large height, slightly greater than the size of turkeys.

 Part 60 has a first casing part 600 'of decreasing height, the "roof" of the tunnel converging downwards, then a second part 601 of constant height. The telescopic part 61 is equipped with a cover 602 of reduced height. Of course, the latter is adapted to be able to slide inside the cowling 601 during the telescoping of the part 61.

 Similarly, the cowlings 600 and 600 ′ allow the relative angular movement of the parts 64 and 60.

 The role of this tunnel is to force the turkeys to lie down gradually on the conveyor during their transport by it, so that the operators present in the nacelles 7 can more easily pick them up by the legs when 'they arrive at the downstream end.

 In Figure 4, the device is shown in the working position for the supply of a cage 10 located at the top of the truck. The angle of inclination Q i formed by the conveyor relative to the horizontal frame 2 is relatively large, for example of the order of 30 ".

 In the storage position, this angle is only a few degrees, the conveyor being folded down on the chassis 2. In FIG. 8 is shown in broken lines the mechanism with a deformable parallelogram in this retracted position, the upper face of the portion of conveyor 60 being symbolized by a strong mixed line. In this position, the jacks 33 are retracted.

 For storage (and also for transport), the auxiliary conveyor portion 64 is also raised to lift it from the ground. This lifting is advantageously carried out by means of the jacks 33, via a cable (not shown) which is attached to the lever 4 and to the part 64.

 This device is preferably autonomous as regards the supply of the energy necessary for its operation.

 It comprises a hydraulic unit not shown for supplying the central cylinder 24 and the two lateral cylinders 33; as an indication, the operating pressure of these cylinders is of the order of 150 to 180 bar.

 With reference to FIGS. 9 and 10, we will now explain how the guiding and driving of the endless conveyor belt 9 is carried out.

 The upstream side of the conveyor is located on the left of the figures, the movement of the belt being symbolized by the arrows f in FIG. 9.

 To facilitate understanding of these drawings, the belt guide rollers have been shown with oblique stripes for the fixed portion of the conveyor - so-called auxiliary portion 64 -, with cross hatching for the portion 60, and without hatching for the telescopic portion 61.

 The upper strand - forward strand - of the belt is supported by support plates - or sole plates - symbolized by broken lines, and designated 900, 901, 902 and 903 for the portions 64, 60, 61 and 610 respectively of the conveyor.

 The plates 901, 902 overlap more or less, depending on the degree of extension of the telescopic part, as can be seen from a simple comparison of FIGS. 9 and 10.

 At the two ends of the conveyor there are return rollers of relatively large diameter, namely an upstream roller 91 and a downstream roller 90, the latter being powered as symbolized by the arrow M in FIG. 9.

 The drive roller 90 is driven by a suitable hydraulic motor, not shown, via an electrically controlled solenoid valve which makes it possible to vary the speed of the belt.

 As an indication, the speed of movement of the belt during operation is of the order of 10 meters per second.

 With the exception of the drive roller 90, the other rollers are idle (free to rotate).

 The strip passes over a certain number of small guide and / or deflection rollers which are designated 910 for part 64, 920 for part 60 and 921 for part 61.

 In the transition zone between parts 60 and 61, there are two rollers of medium diameter, referenced 92 and 93, which give the strip a sinuous S-shaped trajectory.

 The roller 92 is secured to the part 60 the roller 93 is secured to the part 61.

 The presence of these two rollers allows the mutual displacement of the two parts 60 and 61, without having any effect on the tension of the strip.

 This possibility is clear from the comparison of Figures 9 and 10.

 In FIG. 10, the telescopic part 61 is retracted, symbolized by the arrow I, the overall shortening of the conveyor being compensated by the lengthening of the loop passing over the rollers 93 and 92.

 The pivoting of the parts 60 - 61 relative to the fixed part 64 (arrow H) does not pose any difficulty. There is simply a change in the angle of the strip on either side of the rollers 910.

 Preferably, the width of the mat corresponds to the width of two cages, which makes it possible to simultaneously supply a group of two neighboring cages symbolized by the reference G in FIG. 1 - each of the two operators located in the nacelles 7 a, 7 b responsible for filling one of the two cages.

 With reference to FIGS. 4 and 6, we will now describe an operation for collecting turkeys.

In FIG. 4, the reference E designates a breeding enclosure where the animals to be collected are located. They can roam freely on the ground. The reference
P denotes a wall of the enclosure, which is crossed by an opening (door) O.

 The chassis 2 is positioned in such a way that the part 64, corresponding to the so-called auxiliary input conveyor ", penetrates through the opening O, the upstream end of the conveyor therefore being inside the enclosure E .

 The collector truck 1 is then maneuvered to bring its side face to the side to be loaded near the nacelles 7.

 Normally, the conveyor is initially in the lowered position.

In this position the nacelles rest on the ground. The loading of a column of cages - or two cages - is then done from bottom to top; the loading of the next column is then done from top to bottom, after the truck has been moved by a distance corresponding to the length of the cage, or of the group of two cages, and so on until full loading of the set of cages located on this side.

 As already said, the truck then turns around to load the other set.

 Preferably, inside the enclosure, there is a conveyor belt conveyor (not shown), of low height, intended to transfer the poultry to the auxiliary conveyor 64.

 This feed conveyor is advantageously provided on one of its edges with a drop side, towards which operators present in the enclosure fold the poultry, so that they climb onto the conveyor after which they are conveyed to the truck by the conveyor 6.

 With the aid of the console 700, the operator who is in the nacelle 7 a can control - via appropriate valves - each of the jacks 24 and 33, as well as the stopping, the starting and the speed variation of the endless belt of the conveyor 6.

 Preferably, it can also control the feed conveyor located in the enclosure E downstream of the device, to adapt the speed to that of the conveyor 6.

 By maneuvering the jacks 33, it is possible for it to bring the downstream end 610 of the conveyor to the desired height, opposite the cage, or cages, to be supplied.

 The comparison of FIGS. 4 and 5 makes it possible to understand how one passes from a high position to a medium position, after filling the two upper cages, for the supply of the next cage 10 ′.

 The lowering H of the conveyor is obtained by actuating jacks 33 in the direction of retraction, symbolized by the arrow F, which has the effect of making the angled levers 4 pivot downward (arrow G) and of retracting the part 61 (arrow I), so that the spacing d 1 enters the nacelles and the truck remains substantially constant despite their lowering from the height H 1 to the height H 2.

 As already said above, thanks to the cable 8 and the articulated mounting of the nacelles on the conveyor, their attitude also remains constant, and the operators can therefore work in good conditions.

 As illustrated in FIG. 6, it is possible to move the downstream part of the conveyor (portion 61 and nacelles 7) without practically modifying the inclination of the conveyor.

 To do this, actuator 24 is actuated to move the carriage 30.

 The entire control mechanism 3 is thus moved; the finger 41 therefore slides in the lumen 63, without the inclination of the corresponding bent lever 4 being practically modified.

 There is therefore obtained a sliding of the telescopic part 61 relative to the part 60 without significant modification of the angle c.

 In FIG. 6 is illustrated a backward movement of the carriage (arrow K) caused by an extension J of the jack 24.

 This has the effect of retracting part 61 into part 60 and spreading the nacelles of the truck, the spacing d 2 being greater than the initial spacing d.

 Naturally, the control of the jack 24 in the opposite direction, in the direction of its retraction, causes the nacelles of the truck to come together.

 This possibility of removing or bringing the nacelles closer to the truck is very advantageous, in particular at the start of operation, in order to best adjust the positioning of the downstream end of the conveyor vis-à-vis the cages to be supplied.

 Furthermore, when a column of cages has been filled, it is advantageous to be able to move the nacelles back with respect to the truck before its movement to avoid any risk of catching; when a new column to be supplied has been brought opposite the conveyor, the latter is again brought closer.

 This possibility of adjustment is also advantageous for compensating for the inclination of the truck due to the lateral load, a phenomenon which has been explained above with reference in particular to FIG. 3.

 When the collection is finished, the conveyor is folded flat on the chassis, the rear part 64 and the feet 22 are raised, and the device can be towed by a tractor to be transported to another farm.

 As an indication, the fixed part 64 of the conveyor has a length of the order of 1.50 meters to 2 meters, the parts 60 and 61 have a total length of the order of 8 to 9 meters in the extended position; the displacement travel of the telescopic part 61 is for example of the order of 1.50 meters.

 The width of the conveyor belt 9 is for example 1.50 meters.

 Such a conveyor has a surface allowing it to simultaneously support a hundred turkeys during conveying.

 As already mentioned above, during their journey, the birds are forced to lie down gradually on the conveyor due to the reduction in height of the tunnel, so that it is easy for operators placed in the nacelles to catch them by the legs to place them in the cages.

 Such a device can find various other applications for moving objects by causing them to change levels, in particular for bringing them to storage places located high up.

 In addition, by changing the direction of drive of the conveyor belt, the device can be used to lower objects, for example to unload a truck.

Claims (10)

 1. Device for conveying and elevating articles, in particular live poultry for loading a vehicle intended to receive them, characterized in that it comprises:  - a horizontal frame (2);  - an elongated conveyor (6) articulated at one of its ends, called upstream, to the chassis (2) around a horizontal and transverse axis (20), this conveyor (6) comprising a movable endless belt (9) able to support and transport the articles from this end to the other end, called downstream;  - at least one nacelle (7) mounted at the downstream end (610) of the conveyor (6), on one side thereof, and able to receive an operator;  - control means (33; 4; 41) adapted to pivot the conveyor (6) around said axis (20) so as to be able to bring and maintain said downstream end, as well as said nacelle (7) at different heights (H ).  2. Device according to claim 1, characterized in that said conveyor (6) comprises a downstream part (61) telescopic, movable in translation in the longitudinal direction, relative to the upstream part (60).  3. Device according to claim 2, characterized in that said control means (33; 4; 41) are arranged so as to concomitantly effect the axial displacement of the telescopic part (61) and the pivoting of the conveyor (6), in such a way that its downstream end (610) remains substantially in the same vertical plane, whatever its inclination (Q).  4. Device according to one of claims 1 to 3, characterized in that said control means are controlled by a hydraulic cylinder (33).  5. Device according to one of claims 1 to 4, characterized in that said control means are carried by a carriage (3) mounted axially movable on the frame (2), and whose movement allows to move the telescopic part (61) without - or practically without - modifying the inclination (ct) of the conveyor (6).  6. Device according to one of claims 3 to 5, characterized in that said control means comprise - on each side of the device - a bent lever (4), one end of which is articulated to the chassis (2) - or to the carriage (3) carried by this - and the other end of which carries a finger (41) sliding in a slot (600) in the upstream part (60) of the conveyor and integral with the telescopic part (61).  7. Device according to one of claims 1 to 6, characterized in that it comprises means for maintaining constant - or substantially constant the attitude of the nacelle (7), whatever the inclination (ce) of the conveyor (6).  8. Device according to claims 6 and 7 taken in combination, characterized in that, on the one hand, it comprises a deformable parallelogram of which one of the long sides (fictitious) is materialized by said bent lever (4) and l 'other by a connecting rod (5), while the short sides correspond, one to a part (300) secured to the frame (2) or the carriage (3), and the other to a link (42) and, on the other hand, that said nacelle (7) is articulated to the telescopic part (61) and connected by a pulling cable (8) to said link (42).  9. Device according to one of claims 1 to 8, characterized in that it comprises a pair of nacelles (7a, 7b), located on each side of the conveyor (6), one of which is at least fitted a control desk (700) allowing the operator therein to control the pivoting of the conveyor (6) around its axis (20) and, if necessary, the axial movement of the telescopic part (61 ) and the movement of the carriage (3), as well as the control of the endless belt (9).  1 0. Device according to one of claims 1 to 9, characterized in that the conveyor (6) has at its upstream end, an auxiliary part (64) bearing on the ground, and whose inclination is normally fixed by relative to the chassis (2).  1 1. Device according to one of claims 1 to 10, characterized in that the conveyor (6) is equipped with a cover giving it the general shape of a tunnel, the height of which decreases from upstream to downstream.  12. Device according to one of claims 1 to 11, characterized in that the device is a trailer, the chassis (2) being mounted on wheels (21).  1 3. Device according to claim 12, for the collection of turkeys and / or turkeys on the breeding grounds, and their caging on collecting vehicles.