MXPA99011507A - Device for picking up covering fabrics from plantation fields - Google Patents

Abstract

A device for picking up covering fabrics from plantation fields comprises a frontally mounted capturing device (9), through which a spread-out fabric (8) may be pulled in while forming a narrow strand. A rotatable shaft (11) is axially placed on the vehicle in order to be able to receive a reel (10). Between the capturing device (9) and the reel (10), there are means (14, 14', 14'') for guiding the strand of fabric in a gathered state to the reel (10). In the proximity of the reel, there is also a mechanism (12) for evenly distributing the strand of fabric onto the reel.

Description

DEVICE FOR COLLECTING FLOORING OF CULTIVATION FIELDS DESCRIPTION OF THE INVENTION This invention relates to a device for collecting cover fabrics of crop fields, comprising an arrow that can be mounted on a vehicle with wheels, whose arrow is rotatable in order to ensure the winding of the fabric in a roll. Recently, it has become usual to cover outdoor crops with fabrics in order to ensure a good heat generation in the immediate vicinity of the crops, as well as to protect the crops against the attacks of insects or coleoptera. Improved heat generation produces faster and safer crops and due to the fact that insects stay away from crops, the use of insect control means may be unnecessary. ~~ For this latter reason, the cover fabrics are used with the particular advantage in ecological crops. The fabrics may consist of a fibrous cloth or a perforated plastic film, which in both cases is supplied in both lengths having a large width. In practice, these fabrics usually have a width within the range of 10-13 meters and a length of 150-250 meters or more. Upon delivery, the fabrics are folded and rolled into rolls, the width of which can reach approximately 2 meters.

To place such fabrics in the cultivation fields is comparatively simple, although problems arise when the fabrics are "collected from the fields towards the end of the harvest season to be reused during a subsequent growing season. Handling is done manually, more precisely by several men who successively pull small portions of the fabric, after loosening the existing anchors, towards an edge of the crop field and then fold and pack the cloth step by step along This procedure is not only laborious and time-consuming but also associated with high risks of sensitive harvests that are damaged, in order to eliminate the need for difficult manual handling of fabrics, Simpler machines have been developed for the partially mechanized collection of fabrics. rotary milks that are driven by, for example, the ordinary hydraulic system of a tractor and that are included in a cord that can be mounted on the back of the tractor. However, such arrows allow only a partial facilitation of the work while the fabric can be rolled and transported away from the field only when it has been manually folded to a limited width (approximately 2 meters) corresponding to the length of the arrow. In other words, this mechanized method still requires manual folding of the fabric before winding on the arrow. The present invention focuses on eliminating the aforementioned problems and on creating a device for the collection of fabrics that radically decreases the need for manual labor along with the removal of cover fabrics from crop fields, and also reduces the risks of damage to the crops as well as the fabrics to a minimum. Therefore, a primary object of the invention is to provide a device for the collection of fabrics that allows the fabric in the existing state to be removed directly from the field and taking care of an immediately storable form that has to be handled by many people. . A further object of the invention is to create a collection device that allows a simpler, faster and more effective collection work by a single person, an operator of a tractor or a similar vehicle. In doing so, the driver must be able to supply the modified fabric to a storable form • without having to leave the vehicle. It is also an object of the "invention to create a collection device that allows the collection of cover fabric independent of the current climate, in particular with respect to the force" of the wind and precipitation conditions.

According to the invention, at least the primary object is achieved by the features defined in the characterization clause of claim 1. Preferred embodiments of the device for collection of fabrics according to the invention are further defined in the dependent claims. BRIEF DESCRIPTION OF THE DRAWINGS In the drawings: Figure 1 is a perspective view of a device according to the invention mounted on a tractor during work, Figure 2 is a top view of the tractor working in a field of crop together with the device, 'Figure 3 is an enlarged plan view from above showing the device in greater detail, Figure 4 is a section AA in Figure 3, although without the rolled cloth, and Figure 5 is a partial view from above showing a retainer for rotating a reel to collect fabrics. In the drawings (see initially Figures 1 and 2), generally the number 1 designates a vehicle in the form of a tractor which, in a conventional manner, may include a pair of relatively small front wheels 2, as well as a pair of wheels backs having considerably larger wheels 3. Advantageously, those wheels are possible to restore so that they can be adjusted to several distances between the rows of crop. In other words, the wheels of the tractor must be able to advance in rows 4 between rows of crop 5. In the drawings, _6 designates a 'front end of the tractor, while a rear end is designated generally 7. A fabric of cover to protect the crops growing on the field of crops in turn are generally designated with 8. For the continuous description reference is made to Figures 3 to 5. A collection device made from the invention is assembled in the tractor 1, the main components of such a device consisting of a capture device 9, a reel 10 which can be mounted on the rotary shaft 11 and means for guiding a part of the fabric in the form of a cord by means of the device 9 captures from the capture device towards the reel 10. In addition, a mechanism 12, which has the purpose of uniformly distributing the fabric held together on the reel 10 is included in the device. vo. In the example shown, the capture device 9 consists of an endless frame or ring which is applied to a registration arm in the shape of a bar 13 projecting from one side of the tractor. placed in front of the front wheels of the tractor, with the frame "located comparatively above the ground (for example within the scale of 1-2 meters). This arrangement ensures that the fabric 8 can be removed from the crops in a careful manner by being raised at a comparatively stepped angle against the ground level as well as that of the cord form, of the collected part of the fabric which follows afterwards. - of the capture device that is not stacked on the wheels of the tractor even if there is a strong wind. The cord collected from the fabrics is led from the capture device 9 by means of a number of pipe pieces 14, 14 ', 14", of which the first two mentioned are in the form of straight pipes with an extension of considerable length The last mentioned pipe pieces consist of a pipe bending by means of which the fabric cord can be differentiated from the movement path parallel to the length of vehicle extension towards a transverse movement path in the direction towards the spool 10. In the current example, the reel 10 is mounted on the rear of the tractor, in doing so, the guide pipes 14, 14 ', 14"are mounted on a frame 15, which" extends along one side of the tractor and are transported by a laterally projecting conveyor 16. The arrow 11 is transported by a fastener 17 (see Figure 3), which rotates in relation to the structure of the tractor. More precisely, the fastener 17 can be rotated in the vertical plane by means of a three-point elevator 18 of the -tractor. By means of this three-point lifter, the arrow _ 11_ can be inclined between several oblique positions, more precisely between an upper end position in which the arrow points obliquely outwards / upwards relative to the horizontal plane and an extreme position inferior in which it points obliquely backwards and downwards in relation to the horizontal plane. The arrow 11 is rotatably mounted on a support device 19 (see FIG. 5) applied to the fastener 17 and operable by means of a hydraulic motor 20 connected to the ordinary power output of the tractor. Between the motor and the support device a sliding clutch 21 can be placed. On the arrow, there is a retainer in the shape of a box 22 having one or more limbs 23. The reel 10 includes, in addition to a central pipe 24 for application on the arrow 11, two opposite end portions, each of which consists of an outer ring 25 and a plurality of spokes 26 extending radially between the ring and the pipe: The spool constructed in this way is in practice easy to handle, while the application as well as the removal is It can be carried out by means of levers inside the drive compartment, therefore the arrow 11 can be inclined to a substantially horizontal position, or inclined downwardly / backward obliquely into which it can be inserted into the pipe 24. of a reel that is located on the ground.When the arrow is tilted "subsequently to a tilted upward / backward position obliquely, the reel pipeline automatically deslides forwardly so that the ends 23 on the retainer 22 adhere within the spaces between the adjacent rays. This means that the retainer automatically connects the motor displacement to the reel - so that it rotates when the arrow is rotated by the motor. When the reel has been filled with the web, the reel can be removed from the arrow only by simply measuring the inclination of the arrow -to an oblique back pipe 24 of a reel applied to the arrow 11. The application of the reel on the arrow is carried out in the simple manner previously provided, that is to say by initially tilting the arrow towards a lower position in which it can be inserted between the central pipe, and subsequently tilting it in a manner in the upward direction, by automatically sliding the spool towards an inner end position in which the retainer is automatically coupled with the spokes of the inner end portion. The collection of the fabric starts by "fixing the spool in rotation simultaneously as the tractor is driven in the direction of advance, more precisely - with the wheels of the tractor placed in the furrows between rows of adjacent plants. Attached to one end of the fabric has its entirety passed to the capture device 9 the fabric is also pulled through the device so that the 10-13 meter wide fabric is collected and formed into a comparatively narrower cord. then passes through the guide pipe pieces as well as the distribution arm cycle, - - and then it is wound onto the reel while a roll is formed by the fact that the guide pipe pieces are a considerable length, it is guaranteed that the cord of the fabric is guided uniformly through it without fluctuations and rolling in. In addition, the distribution arm guarantees that the fabric arrival cord is evenly distributed on the roll that is formed on the reel. A substantial advantage of the device according to the invention is that the fabric is collected from the extended state thereof on the culture field without having to be initially bent. Due to the fact that the capture device is placed relatively high above ground level - and in front of the front wheels of the tractor, it is further ensured that the fabric is removed from the ground level at a stepped or comparatively greater angle. This means that the risk of crop damage is minimized. Simultaneously, the stepped angle ensures that the fabric will not be damaged and will be kept clean by the fact that the earth and the stones can roll "along the fabric all the way to the free end, which is finally captured and It also prevents the extension from cutting part of the fabric without being trapped in the wheels of the tractor together with the fluctuation movements possible as a consequence of the wind.Another substantial advantage is that the roll of cloth wound on The reel can be rolled up in a simple and "time-saving manner, therefore the reel together with the fabric" can be simply rolled up by a plastic bag or the like in order to protect the fabric against UV light. Protective bag can be wrapped evenly around the reel while it is being applied to the arrow 11, and then the reel can be transported by means of the tractor to a storage yard. right. When the growing season is about to start, the fabric used rolled up to the reel can be placed on the crop field again in a uniform and time-saving way. Therefore, the earth can be pulled from the spool in a cord form through the cycle 27 of the distribution arm 12, while remaining inactive and then extended on the field by two people following the tractor and separating the Large side edges of the fabric as the tractor moves forward along the field. Viable Modifications of the Invention The invention is not restricted only to the embodiments described and shown in the drawings. Therefore, it is feasible to mount the reel arrow on the front of the tractor instead of the back. However, - also in this case the arrow is mounted axially in order to allow simple and uniform union and separation, respectively, of the spool. In the event that the arrow together with the spool is mounted on the front, the number of pieces of guide pipe can be reduced, for example only to a pipe bend. Also other modifications of the invention are possible within the scope of appended claim 1.

Claims (8)

1. CLAIMS 1. A device for collecting cover fabrics from crop fields, comprising an arrow that can be mounted on a vehicle with wheels, and that rotates for the purpose of winding the fabric, characterized in that it comprises a capture device, which is placed on a registration arm which can be placed on the front of the vehicle and through which a fabric lying on a field can be picked up as it forms a narrow cord, which the rotary arrow is placed axially on the vehicle at In order to be able to receive and also release a separate reel intended for winding the fabric in the form of a cord by driving the vehicle in the backward or forward direction and there are means between the catching device and the arrow to guide the cord. the fabric in a state collected from the capture device towards the spool; a mechanism is placed in proximity to the arrow to distribute uniformly the "cord" of entry of the fabric on the reel.
2. 2. Device in accordance with the claim 1, characterized in that the capture device consists of an endless frame or ring.
3. Device according to claim 1 or 2, characterized in that the capture device is placed on the front of a front pair of wheels of the vehicle.
4. Device according to any of the preceding claims, characterized in that the reel, in addition to the central pipe for application on the arrow, comprises two opposite end portions, each of which consists of an outer ring and a plurality of spokes, and the vertically incunable arrow comprises a jaw having one or more gripping limbs, which can automatically engage between the adjacent spokes when an end portion of the reel approaches an internal extreme position in proximity to the jaw by the fact that the arrow it is tilted to a position that points obliquely outwards / upwards.
5. 5. Device according to any of the preceding claims, characterized in that the guide means consist of pieces of pipe that have a marked length extension.
6. Device according to claim 5, characterized in that at least one piece of pipe consists of a pipe elbow for guiding the fabric cord from a downward movement path of the catching device, substantially parallel to the direction of the vehicle, for a movement path that extends transverse to the upstream direction of the spool.
7. Device according to any one of the preceding claims, characterized in that the arrow and the spool "are placed on the rear part of the vehicle, all the cloth guide means together with the dispensing mechanism are mounted on a frame along the length of the vehicle. of the vehicle, such a frame is placed on a conveyor projecting laterally from the vehicle
8. 8. Device according to claim 7, characterized in that the distribution mechanism comprises an arm, which at a first end is connected in an articulated manner to the frame to be pivotable back and forth, such as by means of a hydraulic cylinder and at a second end has means for guiding the fabric cord.