JPH08301434A - Belt conveyor device to supply conveyed vegetable and fruit at wider space - Google Patents

Abstract

PURPOSE: To partially operate facilities by resting part of selected fruit carrying passages corresponding to the carried amount changed with a time period or a season. CONSTITUTION: An endless belt 23 to be expandable in the cross direction, a pair of rollers 20, 21 to cause endless rotational movement of the endless belt, a pair of guide chains 13 to cause endless rotational movement of the tensed endless belt while enlarging the width of the belt to the downstream side of carriage, an attitude changer for a guide chain path to change the width enlarging factor of the belt and a slide plate to upwardly support the back of the vegetable and fruit carriage plane of the belt are provided. The roller 20 on the downstream side of conveying is constructed by a combination of at least three thin cylinders with different diameters to be length-adjustable from the internally inserted state that the cylinders with smaller diameters are sequentially slided into the cylinders with larger diameters to the elongated state that the cylinders with smaller diameters are protruded from the cylinders with larger diameters in the axial direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for supplying a large number of fruits and vegetables continuously while widening the widthwise interval, for example, a grade based on qualities such as color, scratch and ripeness of fruits and vegetables. In the sorting equipment for distinguishing grades based on size, shape, etc., and sorting the articles according to grades, an aligning and feeding device for feeding fruits and vegetables in a preferable row-like manner for the treatment, particularly a row, The present invention relates to a widening belt conveyor device used as a first-stage device for facilitating alignment processing.

[0002]

2. Description of the Related Art In a fruit-picking facility, it is necessary to measure the grade factor and class factor of each fruit and vegetables in the middle of a conveyer path (fruit-picking transfer path) for picking fruits and vegetables while carrying them. For this reason, fruits and vegetables are conveyed in a row on this selection passage. Also, in many fruit selection facilities, it is usual to provide a plurality of conveyor lines for fruit selection in order to improve the processing efficiency.

From these things, it is required to distribute a large number of fruits and vegetables in a state of being randomly conveyed to a plurality of fruit-picking conveying paths in a line while supplying them in a row. An aligning and feeding device for ensuring the above is generally used.

This aligning and feeding device is generally constructed by providing an even distribution device at the first stage and subsequently providing a plurality of row line forming devices.

The above-mentioned uniform distribution device is for evenly distributing a large number of fruits and vegetables that are randomly conveyed on a narrow conveying path to a plurality of articles selecting conveying paths. For this distribution, a belt is used. In addition to this, there are known a system in which a forcible guide for distribution is provided, and a wide belt conveyor system in which a conveyor belt is extended in the width direction and the intervals in the width direction of fruits and vegetables are evenly distributed so that the fruits and vegetables are evenly distributed.

[0006]

By the way, in the fruit-picking process of fruits and vegetables, unlike general industrial products, it is general that the amount of fruits and vegetables brought into the fruit-picking field varies seasonally and seasonally. is there.

Therefore, when the carry-in amount is large, all of the installed plural fruit-picking conveying paths are operated, but when the carry-in amount is small, a part of them is stopped and the remaining fruit-picking conveying paths are operated. It is desirable to operate and to perform the treatment in order to reduce the running cost. For example, if there are three fruit-carrying conveyance paths installed, when the amount of import is large, the fruits and vegetables are evenly distributed to all of these three items, but when the amount of import is small, this is referred to as Article 2. In order to reduce the cost, it is beneficial to evenly distribute or evenly distribute it to 1 strip without distribution, and to stop the other selection conveyance path. There has been no proposal to change the mode of distribution.

The present inventor considers the above-mentioned peculiarities of fruits and vegetables that vary seasonally and seasonally, and pays attention to the fact that it is useful to reduce the running cost by performing an operation corresponding to this. The improvement of the conventional technology was examined.

However, although the above-mentioned object can be achieved by changing the posture of a part of the guides in the above-mentioned forced guide method, this method has a problem that the forced guide and the conveyed object contact and rub and damage the fruits and vegetables. It is pointed out that it is not preferable.

On the other hand, no proposal has been made so far to change the distribution mode of fruits and vegetables in the widening belt conveyor system, but there is a possibility that the above object can be realized by changing the widening ratio of the conveyor belt. Further examination,
Developed.

As a belt conveyer device for making the belt width variable, there is known one disclosed in Japanese Patent Application Laid-Open No. 2-52817. However, this is not used for fruit and vegetable selection equipment. When the machine is at rest, the pair of guide chains are moved in parallel to bring the two traveling bodies closer to each other to relax the tension of the belt, so-called "prevention of fatigue", and the number of distribution destinations is changed according to the amount of fruits and vegetables carried in. The variable mechanism is basically different from the one.

The present inventor has accomplished the present invention as a result of earnestly researching with reference to the above-mentioned conventional techniques and the like for the purpose of solving the above-mentioned peculiar problems in the fruit and vegetable sorting equipment. is there.

That is, one of the objects of the present invention is to solve the problem that the production amount of fruits and vegetables fluctuates seasonally and seasonally, and therefore the amount of fruits and vegetables brought into the fruit selection field often fluctuates.
It is to provide an appropriate and efficient selection processing facility.

A more specific object is to suspend a part of the sorting equipment in which a plurality of articles conveying paths for sorting are provided corresponding to the maximum amount of processing when the required processing amount is small. A belt conveyor device that can partially operate the equipment, and by changing the distribution mode according to the amount of fruits and vegetables that are brought in, it is possible to select a fruiting conveyance path that operates and a fruiting conveyance path that does not operate There is a place to offer.

Another object of the present invention is to provide such a device with a simple structure.

[0016] Still another object of the present invention is to provide a belt conveyor device which is easy to change the mode of distribution.

[0017]

The features of the present invention for achieving the above object are as described in the claims of the above-mentioned claims, and particularly, the width interval of the conveyed fruits and vegetables according to claim 1. The features of the invention of the belt conveyor device (hereinafter, referred to as “diffusion belt conveyor”) for spreading and feeding are endless belts that can expand and contract in the width direction orthogonal to the conveying direction, and the endless belts are stretched and endlessly rotated. At least a pair of rollers, a pair of guide chains on both sides for tensioning the endless belt outwardly on both width edges to perform the above-mentioned endless rotation while widening the belt width toward the downstream side of conveyance, and the pair of guide chains. A belt conveyor device provided with means for changing the attitude of the guide chain orbit for changing the belt widening ratio by means of, and a slide plate for supporting the back surface of the fruit and vegetables conveying surface of the endless belt. Of the above rollers, the roller located on the downstream side of the conveyance is composed of a combination of at least three or more thin-walled (generally about 2 to 5 mm) tubular bodies each having a different diameter, and the diameters are successively reduced. The length of the cylindrical body is adjustable from the inserted state in which the cylindrical body is slid into the large diameter cylinder to the extended state in which the small diameter cylinder protrudes in the axial direction from the large diameter cylinder.

The axial length-adjustable roller is
For example, in a long groove extending in the busbar direction of either one of the small-diameter tubular body and the large-diameter tubular body that are inserted and fitted to each other, a radial projection provided in the other is provided in the busbar direction. By movably fitting, it is possible to prevent relative rotation and prevent slipping.

For the above-mentioned endless belt, a woven cloth or a knitted cloth which is stretchable in a certain direction, or another appropriate sheet material having stretchability can be used.

It is preferable that the attitude changing means of the guide chain track is provided so that the attitude of each of the pair of guide chains can be changed independently. This means that, for example, when the number of rowing devices arranged downstream of the diffusion belt conveyor device of the present invention is three, when the state of one row is switched to two rows, the posture (inclination) of the guide chain track on one side is increased. When changing the angle) and changing to 3 rows, by changing the posture of the guide chain track on the opposite side, 1 → 2, 2 → 3, 1 depending on the row to be used among the 3 rows of the liner.
This is because → 3 can be switched. The number of rows of the post-columnarizing device or the sorting conveyor for performing the sorting processing is not limited to the above three.

Further, since the belt of the present invention widens the widthwise dimension toward the downstream side, the axial dimension of at least a pair of rollers for endless rotation of the belt is variable. Although it is not necessary to do so, the downstream roller adopts the above-mentioned configuration in which the axial dimension is variable.

Adjustment of the axial length of the downstream roller is as follows.
It is preferable to be configured by a combination of three or more tubular bodies having the above-described configurations. As is clear from the above example, in order to change fruits and vegetables that are randomly transported in a narrow transport path at a large widening ratio of 1/1 to 1/1 of Article 1 to Article 3, 100% ( This is because the fitting and fitting of the two tubular bodies, which can satisfy only the extension of 2 times or less, is insufficient.

As a more preferable configuration of the present invention, the operation of adjusting the length of the roller downstream of the conveyance, which is provided so that its axial dimension can be changed, is automatically performed in cooperation with the operation of the posture changing means. The ones that have been done are listed. By doing this, if you change the attitude to tilt the guide chain trajectory,
The roller will automatically expand and contract in the axial direction accordingly.

A feature of the invention of claim 6 of the present application is that the slide plate includes at least two swing plates which are swingable in the width direction on the transport downstream end side as a fulcrum. Where it is. This slide plate is effective in favorably carrying fruits and vegetables by a belt, and in the case of changing the widening ratio of the belt width, the slide plate also supports the entire back surface of the belt according to the change of the widening ratio. This is because it is necessary to be able to change the spread of the underpinning surface.

A feature of the invention of claim 7 of the present application is that the slide plate is a rectangular fixed plate disposed between the pair of rollers with substantially the same width length as the conveyance upstream side roller, and a width edge of the fixed plate. It is configured by a combination of at least two oscillating plates provided so that the downstream end portion of the conveyance can oscillate outward from both sides. The oscillating plate is provided on the upper side or the lower side of the fixed plate, but it is particularly preferably provided on the lower side.

With this structure, the wide belt and the plate that supports the wide belt can have a preferable cooperative relationship. In particular, the two rocking plates can be respectively guided by the attitude changing means. A simpler operation can be realized by linking the orbital attitude change operations.

[0027]

According to the present invention, in a fruit-picking field where a plurality of fruit-picking conveyors are installed, a part of the fruit-picking conveyors may be used or all the fruit-picking conveyors may be selected depending on the quantity of fruits and vegetables introduced. The number of distribution destinations can be easily changed by changing the widening ratio of the diffusion belt conveyor according to the selection of whether to use the fruit-carrying conveyor, and even distribution is surely performed in any distribution mode. be able to.

[0028]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be further described below with reference to the embodiments shown in the drawings as a diffusion belt conveyor provided in the means of an apparatus for aligning and supplying vegetables and fruits.

Example 1 FIGS. 6 and 7 show the outline of the entire structure of an alignment and supply device arranged in the preceding stage of a lump-shaped fruit and vegetable selection machine equipped with a three-piece sorting conveyor 200. Diffusion belt conveyor 1
Is provided as the first stage device.

The diffusion belt conveyor 1 gradually widens the belt width (vertical direction in FIG. 1) while randomly conveying fruits and vegetables of various sizes before selection, which are supplied from the upstream supply unit 2, in the arrow direction. Thus, the fruits and vegetables are provided so as to be substantially evenly distributed in a row and fed in a line in a line-feeding device having a three-row line-up conveying section 120. That is, at the downstream end of the diffusion belt conveyer 1, three focusing portions 3 each including a combination of a guide 301, a guide roller 302, and a converging portion chute plate 303 having a tapered tip are shown.
However, the fruits and vegetables distributed substantially evenly in the belt width direction on the diffusion belt conveyor are received in a uniform distribution state, and are supplied to the upstream end of the row-carrying and conveying section 120 in a substantially single-row form.

The converging part chute plate 303 of this example is provided so as to be inclined downward and forward as shown in FIG. 7, and is provided so that the fruits and vegetables can be slid down and supplied to the upstream end of the line-up conveying part 120 by its own weight. ing. The diffusion belt conveyor 1 and the focusing section chute plate 303 are appropriately provided with side walls (not shown) for preventing fruits and vegetables from falling off sideways.

The above-described lined conveying section 120 includes the horizontal belt 12
1 and the inclined belts 122 and 122 extending upward and outward at an angle of approximately 45 ° on both sides of the belt 1 to form a reverse cross section perpendicular to the transfer direction (arrow direction in FIGS. 6 and 7). The transfer path space is formed in the shape of an isosceles trapezoid. In the lined conveyance unit 120 in this example, the three belts 121, 122, 122 are, for example, 20 m / min, 3
It is set to rotate at a speed different from 0 m / min and 25 m / min, and relative rolling power is given to the fruits and vegetables 300 conveyed in an overlapping state as shown in FIG. Produces a line-up effect that allows the fruit to be inserted between the front and rear fruits and vegetables on the horizontal belt 121.

In the line-up conveying section 120 of this embodiment, two sets of three belts are continuously provided, and a fixed slide plate 123 is provided between the inclined belts, or a horizontal belt 121 is continuously provided. The downstream side is set to have a high speed, and a step having a low downstream side is provided in the continuous portion to promote the columnaring action. Further, in this example, a separation conveyance section 130 in which two horizontal conveyance belts 131, 131 are continuously provided is provided following the line-up conveyance section 120, and the speed of the conveyance belt on the downstream side is set to a high value to change transfer (transfer). ) Sometimes, I try to widen the space between fruits and vegetables before and after.

The above set speeds of the respective belts are schematically shown such that the long arrows have a high speed in these figures, and the above-described action of rolling and expanding the interval between the front and rear fruits and vegetables can be obtained. It was shown that

Next, the details of the diffusion belt conveyor 1 provided at the first stage of the aligning and feeding apparatus having the above-mentioned structure will be described.

The details of the diffusion belt conveyor 1 in which the widening ratio of the belt width of this embodiment can be changed and adjusted are shown in FIGS. 1 shows a plan view corresponding to the state of FIG. 6 in which the widening ratio is maximized, and FIG. 2 shows a front view thereof.

In these figures, reference numeral 10 denotes a machine frame of the diffusion belt conveyor 1, which is provided on a table 12 supported by legs 11 and supports rollers, guide chains, etc. described later.

Reference numerals 13 and 13 denote linear track frames forming a track for endlessly rotating the endless guide chain 14, and in this example, the hinge portion (not shown) on the upstream side (right end in FIG. 1) is provided. As a fulcrum, the downstream side (the left end in the figure) is provided so that it can be tilted within a certain range in the horizontal plane, so that from the state of maximum widening ratio shown in FIG. 1 to the state of minimum widening ratio shown in FIG. The posture can be changed.

A drive sprocket 15 and a driven sprocket 16 for rotating the guide chain 14 are rotatably supported on both ends of the track frame 13, and the drive sprocket 15 on the downstream side has the motor 1
7 are connected. Also, a pair of orbital frames 13, 1
The pair of driven sprockets 1 provided at the upstream end of
6, an upstream driven roller 21 is rotatably supported by a universal joint 19 and a downstream drive roller is interposed between the pair of drive sprockets 15 provided at the downstream end via a universal joint 18. 20
Is rotatably erected and supported. The drive roller 20
Is provided in a structure capable of adjusting the length in the axial direction, which will be described later.

A tenter clip 22 is attached to each of the pair of guide chains 14 for each connecting chain.
2 securely attaches the width edge of the widening belt 23 with a grip or the like, so that the widening belt 2 having elasticity in the width direction
3, a tension force is applied to the outer side of the width to expand and convey the belt from the upstream side having a short width to the downstream side having a long width.

Reference numeral 24 denotes a posture changing device for tilting the orbital frames 13 and 13, and includes a screw shaft 25 rotatably installed around the machine frame frame 10 so as to be rotatable around the shaft, and the screw shaft 25 screwed to the screw shaft 25. It is composed of a nut member 26 that moves in the axial direction without rotating due to the rotation of the shaft, and a rotating handle 27 for rotating the screw shaft 25.
The nut members 26 are respectively provided on the left and right track frames 13.
The track frame 13 is tilted by axial movement by linking with the pin via a rotatable pin 28. As shown in FIG. 4, the screw shaft 25 of this example has one side raceway frame 13 and the other side raceway frame 1
The screw for 3 is formed as a reverse screw, so that when the rotary handle 27 is rotated clockwise, for example, the pair of orbital frames 13, 13 tilt in the direction of extending the axial length of the drive roller 20, and conversely, the rotary handle. When 27 is rotated counterclockwise, a pair of track frames 13,
13 is tilted in a direction to reduce the axial length of the drive roller 20. Reference numeral 30 is a slide plate that supports the belt below the conveying surface of the widening belt 23. In this example, the driven roller 21 and the drive roller 2 are provided.
0, a fixed plate 31 arranged with a width substantially the same as that of the driven roller, and below the fixed plate 31, a substantially triangular shape having an apex on the upstream side is provided and provided on the upstream side end portion. It is constituted by a combination of a pair of oscillating plates 32, 32 provided on both sides so that the downstream side can oscillate in the width direction with a hinge (not shown) as a fulcrum. That is,
In the state shown in FIG. 1 in which the oscillating plate 32 is oscillated and protruded outward in the width direction, the fixing plate 31 is formed on the entire lower surface of the conveying surface of the widening belt 23 that rotates while widening at the maximum widening ratio.
A lower support surface is formed by the swing plate 32 and the swing plate 32 is hidden under the fixed plate 31 in the state of FIG. It will be. The rocking plate 32 of this example is connected by a connecting means (not shown) so that the rocking plate 32 is rocked in accordance with the tilting of the track frame 13.

FIG. 3 shows the structure of the drive roller 20 whose axial length can be adjusted. In FIG. 3 (a), the large diameter cylindrical body 201 at the center and a pair of left and right members which can be inserted into this cylindrical body. It is composed of a medium-diameter cylindrical body 202 and a pair of left and right small-diameter cylindrical bodies 203 which can be inserted into the medium-diameter cylindrical body 202. The large-diameter cylindrical body 201 extends to the vicinity of both ends. A long groove (long hole) 204 in the direction of the generatrix is provided, and a small projection 205, which is provided on the outer surface of the pair of left and right medium diameter cylindrical bodies 202 and projects outward in the radial direction, is loosely fitted in the long groove 204 and the busbar. Both can be expanded and contracted in the direction. Similarly, the medium diameter cylindrical body 202 is provided with long grooves (long holes) 206 extending in the generatrix direction to the vicinity of both ends, and the small diameter cylindrical body 20 is also provided.
A small protrusion 207 that is provided on the outer surface of the outer peripheral portion 3 and protrudes radially outward is loosely fitted in the long groove 206 so that both can expand and contract in the generatrix direction. A connecting hole 208 for connecting the universal joint 18 is provided at the outer end of the small-diameter cylindrical body.

The drive roller 20 having the above-described structure can adjust the length in the axial direction to an appropriate state. For example, in this example, the state of the maximum widening ratio shown in FIG. 1 and the state shown in FIG. The axial length of the drive roller 20 can be changed between the minimum (the same length as the driven roller 21), and when the amount of fruits and vegetables to be carried in is large, the state shown in FIG. When fruits and vegetables are evenly distributed to the fruit-picking conveying path 200, and the amount of fruits and vegetables to be carried in is sufficiently small, the state shown in FIG. It is possible to perform the fruit-picking processing on the fruit-pickup conveyance path 200.

The roller 210 in FIG. 3B is the large-diameter cylindrical body 2
11, a medium diameter cylindrical body 212 and a small diameter cylindrical body 213 are used to form a roller. In this example, the small diameter cylindrical body 213 and the medium diameter cylindrical body 212 have elongated holes in the generatrix direction. 214,
215 are formed, and the small diameter protrusions 216 and 217 formed on the medium diameter cylindrical body 212 and the large diameter cylindrical body 211 are loosely fitted in these elongated holes. Also in this example, the large-diameter cylindrical body 21
The length in the axial direction can be adjusted from the state where 1 is the total length to the state where the three cylindrical bodies are most extended in the illustrated state.

Embodiment 2 In Embodiment 1 described above, an example is shown in which the rotation of one screw shaft 25 symmetrically expands or contracts the orbital frames 13, 13 on both sides. In the present example shown in FIG. 5, the screw shaft 251 for moving the track frame 13 shown in the upper half of FIG.
The track frame 13 shown in the lower half of FIG.
3 and 13 can be individually expanded or contracted. Other configurations are the same as those of the first embodiment.

According to the present example, the pair of orbital frames have a widening ratio of about 2 times when they are parallel to each other as shown in FIG. 4 (a state where they are not widened) and only one side orbital frame of FIG. 5 is inclined. Both the state and the state in which both side track frames are inclined as shown in FIG. 1 at a widening ratio of about 3 times can be easily set, and therefore, the three-row lined conveying unit shown in FIG. 6 can be easily set. For 120, it is possible to select either one of these 1 or 2 sections, or use the entire 3 sections, so the running cost is reduced according to the quantity of fruits and vegetables carried in. It is possible to obtain the effect that good fruit selection processing can be performed.

The present invention is not limited to the above-mentioned embodiment, and it goes without saying that the structure can be appropriately modified or added within a range not impairing the features of the present invention. It is also possible to adopt a configuration in which the driven roller is used, the axial length of the downstream roller is also adjustable, and the like.

[0048]

Industrial Applicability According to the present invention, it is possible to provide a fruit-picking processing facility capable of coping with a change in the production amount of fruits and vegetables depending on the season and the season, and thus the amount brought into the fruit-picking field. The effect is that you can do it.

More specifically, in a fruit-sorting facility provided with a plurality of fruit-pickling conveying paths corresponding to the maximum amount of processing, when the required amount of processing is small, a part of it can be suspended. There is an effect that the equipment can be partially operated, and in particular, by changing the mode of distribution according to the amount of introduced fruits and vegetables, it is possible to select an operating fruit selection conveying path and an inactive fruit selecting conveyance path.

Further, there is an effect that such a device can be provided with a simple structure.

Furthermore, the effect that the operation of changing the distribution mode in the belt conveyor device is simple can be obtained.

[Brief description of drawings]

FIG. 1 is a plan view showing a schematic configuration of a diffusion belt conveyor according to a first embodiment.

FIG. 2 is a front view of FIG. 1;

FIG. 3 is a perspective view of a roller having an adjustable axial length used in the first embodiment.

FIG. 4 is a plan view showing a state where the widening belt of FIG. 1 has a widening ratio of zero.

FIG. 5 is a plan view showing a schematic configuration of a diffusion belt conveyor according to a second embodiment.

FIG. 6 is a plan view showing the outline of the overall configuration of an apparatus for aligning and supplying vegetables and fruits configured by using the widening belt conveyor of the present invention.

7 is a front view of the device of FIG.

FIG. 8 is a view for explaining a columnaring action in a columnaring and conveying section of the aligning and feeding device.

[Explanation of symbols]

1: diffusion belt conveyor, 2: supply unit, 3: focusing unit, 1
0: Machine frame, 11: Leg, 12: Stand, 13: Orbital frame, 14: Guide chain, 15: Drive sprocket, 16: Driven sprocket, 17: Motor, 18, 1
9: Universal joint, 20: Drive roller, 2
1: driven roller, 22: tenter clip, 23: widening belt, 24: posture changing device, 25: screw shaft, 26: nut member, 27: rotating handle, 28: pin, 30: fixed plate, 31: rocking plate , 120: a line-up conveyance section, 121: a horizontal belt, 122: an inclined belt, 13
1: conveyor belt, 200: conveyor for selecting fruits, 201: large diameter cylinder, 202: medium diameter cylinder, 203: small diameter cylinder, 20
4, 206: long holes, 205, 207: small protrusions, 211:
Large diameter cylinder, 212: Medium diameter cylinder, 213: Small diameter cylinder, 2
14, 215: long holes, 216, 217: small protrusions, 30
0: fruits and vegetables, 301: guide, 302: guide roller, 3
03: Focusing part chute plate.

Claims (8)

[Claims] 1. An endless belt capable of expanding and contracting in a width direction orthogonal to a conveying direction, at least a pair of rollers for tensioning the endless belt to rotate endlessly, and tensioning the endless belt outward in both width edges. A pair of guide chains on both sides for performing the endless rotation while widening the belt width toward the downstream side of conveyance, a posture change means for a guide chain track for changing the belt widening ratio by the pair of guide chains, and the endless A belt conveyer device comprising: a slide plate that supports a back surface of a fruit and vegetable conveying surface; and at least three thin-walled cylinders each having a different diameter for rollers located on the conveying downstream side of the rollers. The cylindrical body of smaller diameter is slid into the cylindrical body of larger diameter in order from the inserted state to the axial direction of the cylindrical body of smaller diameter. Out belt conveyor supplying widen spacing conveying the fruit or vegetable, characterized in that provided adjustably length of the state of extension. 2. The roller according to claim 1, wherein the length of the roller can be adjusted in the axial direction, the cylindrical body having a small diameter and the cylindrical body having a large diameter, which are fitted in each other, are provided with a bus bar of either one of them. Extending the width of the fruits and vegetables to be conveyed is characterized in that the radial projections provided on the other side of the long groove extending in the same direction are movably fitted in the busbar direction to prevent relative rotation and prevent pulling out. Belt conveyor device to supply by. 3. The endless belt according to claim 1 or 2, wherein the widening ratio of the endless belt is changed by selecting a part or all of a plurality of strips arranged opposite to each other at the downstream end of the belt for supplying fruits and vegetables. A belt conveyer device for feeding and conveying fruits and vegetables with a wide interval. 4. The method according to claim 1, wherein
The above-mentioned guide chain track posture changing means is provided so that each pair of guide chains can be operated independently of each other, and a belt conveyer device for feeding the conveyed fruits and vegetables with a wide width interval. 5. The method according to claim 1, wherein
A belt conveyer device for feeding the conveyed fruits and vegetables with a wide width interval, wherein the axial length adjustment of the rollers is linked so as to follow the posture changing operation of the guide chain track by the posture changing means. 6. The method according to any one of claims 1 to 5,
The slide plate has at least two swing plates that can swing in the width direction at the transport downstream end side with the transport upstream end side as a fulcrum. apparatus. 7. The method according to any one of claims 1 to 5,
The slide plate includes a fixed plate disposed between the pair of rollers and having substantially the same width as the conveyance upstream side roller, and a conveyance downstream end side portion from both sides of a width edge of the fixed plate can swing outwardly in the width direction. A belt conveyor device configured to combine the at least two rocking plates according to claim 6 provided, and to feed the conveyed fruits and vegetables with a wide width interval. 8. The width interval of conveyed fruits and vegetables according to claim 7, wherein the swing of the swing plate is linked so as to follow the posture changing operation of the guide chain orbit by the posture changing means. Belt conveyor device to spread and supply.