JPH11105876A - Farm product packaging tray pack - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily take out tray packs one by one from the state of being piled up by a method wherein the tray packs to be used for encasing fruits or the like are formed so that a plurality of housing recesses can be brought into agreement before and after turning-round when the tray packs are turned round within the horizontal plane and the tray packs can be prevented from sticking together when being piled up after turning-round. SOLUTION: A tray pack 1 has a base 2 in a specified thickness formed, for instance, of foamed resin material and made up in a rectangle at its external shape, and a number of hemispherical housing recesses 3 are formed in a plurality of rows and columns. The housing recesses 3 in the adjoining longitudinal columns of the whole housing recesses 3 are arranged in zigzagging, with each of the housing recesses 3 being offset approximately by half of its diameter in the longitudinal direction, and formed at positions being in punctual symmetry at 180 deg. one another against the center O1 of the base 2. Furthermore, a number of protuberances 4 projecting upward and serving as stick-preventing means are formed at the upside 2a of the base 2 on specified positions between the adjoining housing recesses 3, and the protuberances 4 are formed at positions being in astigmatic symmetry at 180 deg. one another against the center O1 of the base 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tray pack used for sorting and packing agricultural products such as peaches, apples, melons and the like and packing them in a box. The present invention relates to an agricultural product tray pack that can be taken out.

[0002]

2. Description of the Related Art Generally, a tray pack used for packing agricultural products is made of a foamed plastic sheet or paper having a large number of recesses for storing agricultural products one by one. Since the tray packs are packed in boxes of the same size (common), the size and number of storage recesses (number of balls) and their arrangement (staggered, matrix, etc.) depend on the size (classification) of agricultural products. Are different.

[0003] In addition, the tray pack is transported from, for example, a manufacturer of the tray pack to a sorting facility using the tray pack.
Alternatively, in order to increase the efficiency of storing and storing the tray packs in a manufacturer or a fruit sorting place, the tray packs have a shape that can be stacked so as to make the volume as small as possible by closely contacting in the vertical direction. And as this type of tray pack conventionally,
For example, Japanese Utility Model Publication No. 3-8630, Japanese Utility Model Publication No. 62-184
No. 43 and Japanese Utility Model Publication No. 6-29063.

[0004]

However, in such a tray pack, when each tray pack is to be separated (peeled) one by one from the tray pack group in a substantially close lamination state, For example, if the tray packs are in close contact with each other at the top and bottom, an action similar to vacuum suction occurs on the contact surface, so the tray packs are not reliably separated and the tray packs cannot be taken out smoothly. However, there is a problem that the efficiency of the packing operation is inferior.

Further, when the above-mentioned tray packs are used in a separating apparatus for mechanically separating and supplying the tray packs, the individual tray packs are not separated one by one. However, there is a problem that the operation efficiency of the packing operation is substantially reduced. As a result, a separation device in which various methods are proposed (for example, Japanese Patent Application Laid-Open Nos.
In JP-A-338805 and JP-A-8-127430), when the above-mentioned tray pack is used, the separating action is not constant and lacks stability. Therefore, a mechanism for improving the stability is provided in the separating apparatus. For example, there is a problem that the structure of the separation device is complicated and the cost is easily increased.

The present invention has been made in view of such circumstances, and an object of the present invention is to separate and take out the stacked tray packs one by one reliably and easily. It is an object of the present invention to provide an agricultural product packaging tray pack that can improve the efficiency of box packing work and can be stably used in a separation device or the like.

[0007]

In order to achieve the above object, according to the first aspect of the present invention, an adhesion preventing apparatus capable of preventing the close contact between a plurality of storage recesses and a stacked tray pack. An agricultural product packaging tray pack having means, wherein when the tray pack is rotated 180 degrees in a horizontal plane, a plurality of storage recesses are arranged so as to match before and after rotation, and the adhesion preventing means acts after rotation. This prevents the stacked tray packs from sticking together.

[0008] With this configuration, the storage recesses of the tray packs provided for storing the agricultural products have the same positions even when the tray packs are rotated by 180 degrees horizontally and stacked. On the other hand, the anti-adhesion means provided on the tray pack does not work when the tray pack is not rotated by 180 degrees horizontally, and the anti-adhesion means is substantially adhered when the stacked tray packs are rotated by 180 degrees horizontally. Acts to prevent the stacked tray packs from sticking together. By means of the close contact preventing means, a relatively wide interval is set between the stacked tray packs by simply rotating a plurality of tray packs which are substantially in close contact with each other at the time of transporting and storing, etc., horizontally by 180 degrees at the time of packing operation. As a result, the separation of the tray pack by the separation device or the like is ensured, and the tray pack can be taken out smoothly.

According to a second aspect of the present invention, there is provided a tray pack having a plurality of storage recesses and stackable in a vertical direction, wherein the tray pack has one tray pack and another tray pack in a horizontal plane. When stacked 180 degrees in the vertical direction, the plurality of storage recesses are arranged so as to match before and after the rotation, and the interval between the upper and lower tray packs after the rotation is larger than the interval during the stacking before the rotation. It is characterized in that a settable adhesion preventing means is provided.

With this configuration, for example, when the upper tray pack is stacked on the lower tray pack, the storage recesses of the respective tray packs are aligned with each other when the tray pack is not rotated 180 degrees horizontally. The layers are stacked in a substantially close contact state. On the other hand, for example, when the upper tray pack is horizontally rotated by 180 degrees and stacked on the lower tray pack, although the storage recesses match, the gap between the upper and lower tray packs is set to be larger than the gap in the close contact state by the adhesion preventing means. You. By increasing this interval,
The stacked tray packs can be reliably separated and taken out one by one by a separation device or the like.

According to a third aspect of the present invention, there is provided a tray pack having a plurality of storage recesses and stackable in a vertical direction, wherein the tray pack has at least a first tray pack having a plurality of storage recesses; A second tray pack having a storage recess that matches a storage recess of the first tray pack when stacked in a predetermined orientation on the first tray pack, wherein the first tray pack and the second tray pack are provided. At least one of them is provided with an adhesion preventing means capable of preventing adhesion when the two tray packs are stacked.

With this configuration, for example, when the second tray pack is stacked on the first tray pack in the same orientation, the storage recesses of both packs are stacked in a state where their positions match. The close contact of the stacked first and second tray packs is prevented by the close contact preventing means provided on at least one of the two tray packs.
The first and second tray packs are stacked in a state where the two tray packs are not in close contact with each other simply by being stacked without being rotated by 180 degrees, and are substantially in close contact by being stacked for each tray pack. Can be stacked.

Further, the invention according to claim 4 is characterized in that the adhesion preventing means is formed by a convex portion projecting in a direction opposite to the concave direction of the storage concave portion. With this configuration, the stacked tray packs are prevented from sticking together by the convex portions, so that the tray packs can be reliably separated and taken out one by one. It is set accurately by the height of the part.

The invention according to claim 5 is characterized in that the adhesion preventing means is formed by a projection projecting in the same direction as the recess direction of the storage recess. The protrusion of the adhesion preventing means is formed continuously with the end of the storage recess. With this configuration, similarly to the invention according to the fourth aspect, the tightness of the tray packs stacked by the convex portions can be prevented and reliable separation can be performed, and the convex portions can be continuously formed in the storage concave portions, so that the toilet pack can be formed. The structure of the mold is simplified, and an inexpensive tray pack can be obtained.

Further, the invention according to claim 7 is characterized in that a direction instructing means for instructing the direction is provided to the tray pack. With such a configuration, the direction of stacking the tray packs can be easily aligned in a predetermined direction, and the work of stacking the tray packs becomes easy,
The efficiency of boxing work is further improved.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings. 1 to 9 show an embodiment of a tray pack for packing agricultural products according to the present invention. FIG. 1 is a plan view thereof, and FIG. 2 is a cross-sectional view taken along line AA of FIG. FIG. 3, FIG. 3 is a cross-sectional view similar to FIG. 2 showing another stacked state, FIG. 4 is a partially cutaway plan view of a separation device that can use the tray pack according to the present invention, and FIG. FIG. 6 is a sectional front view, FIG. 6 is an explanatory view of a method of separating and taking out the tray pack, FIG. 7 is a perspective view of a main part of the separating apparatus, and FIGS. 8 and 9 are operation explanatory views of the separating apparatus.

In FIG. 1, a tray pack 1 has a substrate 2 having a predetermined thickness, for example, formed in a rectangular shape by a foamed resin material. The substrate 2 has a front surface 2a and a rear surface 2b (see FIG. 1). 2) Numerous hemispherical storage recesses 3 of a plurality of columns × a plurality of rows (four columns × 5 rows in the figure) recessed toward the side.
Are formed. Of the storage recesses 3, the storage recesses 3 in the vertically adjacent rows are staggered in the row direction by a distance substantially corresponding to the radius of the storage recesses 3, and each storage recess 3 is positioned 180 degrees with respect to the center O 1 of the substrate 2. It is formed at a symmetrical position.

Further, at a predetermined position between adjacent storage recesses 3,
On the upper surface 2a of the substrate 2, a large number of projections 4 are formed, which protrude upward (in a direction opposite to the direction in which the storage recess 3 is recessed) and serve as adhesion preventing means. The projection 4 is formed at a position that is symmetric with respect to the center O1 of the substrate 2 by 180 degrees. A semicircular notch 5 is formed near the front end 2A from the center of the right end 2D of the substrate 2 as a direction indicating means for indicating the direction of the tray pack 1.

In the tray pack 1, the front and rear ends 2A and 2B of the substrate 2 and the left and right ends 2C and 2D are aligned and stacked, as shown in FIG. In agreement, the plurality of tray packs 1 can be stacked in a substantially close contact state (the interval t1 between the tray packs 1 is small). Also, one of the substrates 2 is placed on the horizontal plane at 1
By rotating by 80 degrees and stacking the right end 2D of one substrate 2 with the left end 2C of the other substrate 2, as shown in FIG.
Does not match, and the interval t2 between the stacked tray packs 1 is increased by an amount corresponding to the height h of the projection 4 (t2> t).
1)

The tray pack 1 configured as above is
For example, it is used by being set in a separating device 7 as shown in FIGS. Hereinafter, the configuration of the separation device 7 and a method of separating and extracting the tray pack 1 by the separation device 7 will be described. The separation device 7 is installed in a branch boxing line of a sorting and packing device in a sorting place (not shown) for agricultural products, and is constituted by, for example, a rotation mechanism 8, a lift mechanism 9, a separation mechanism 10 (see FIG. 5), and the like. I have.

The rotating mechanism 8 includes a fixed base 12 on which the motor 1 is mounted.
The rotary table 11 is rotatably arranged via the gear 3 and the gears 14 and 15, and a vertical screw shaft 16 is erected at a cross position on the outer peripheral portion of the rotary table 11. And
The turntable 11 is rotated by the rotation of the motor 13.
The tray pack 1 (hereinafter, referred to as a stack tray pack group) in a stacked state, which is rotated in a direction indicated by an arrow A in FIG. It is configured to be set at S1 (the position of the lift table 17 of the four lift tables 17 that separates the tray pack 1 from the stacked tray pack group).

The lift mechanism 9 includes a vertical screw shaft 16.
And the four lift trays 17 on which the four stacked tray pack groups 1A to 1D corresponding to the above are mounted.
The screw portions of the nut plate 18 provided at the end of the screw 7 are screwed into the vertical screw shafts 16, respectively.
Are supported on the vertical screw shaft 16 so as to be able to move up and down. In addition,
As shown in FIG. 4, the stacked tray pack groups 1 </ b> A to 1 </ b> D placed on the four lift tables 17 have shapes (storage recesses 3) that can correspond to, for example, the grade and size of the sorted agricultural products. (Number, size and arrangement) are set to four different types.

A ceiling plate 20 is fixed to the upper end of a support frame 19 (see FIG. 6) fixed to the outer periphery of the turntable 11, and a lower surface of the ceiling plate 20 corresponds to each lift table 17. The elevating motor 21 (see FIG. 5) is assembled. The elevating motor 21 is connected to the upper end of the vertical screw shaft 16 via gears 22 and 23, respectively. When the elevating motor 21 rotates, the vertical screw shaft 16 corresponding to the motor 21 rotates. The nut plate 18 of the lift table 17 moves up and down along the vertical screw shaft 16, that is, the lift table 17 moves up and down.

As shown in FIG. 6, the lift mechanism 9 for raising and lowering the lift table 17 detects the lowermost position of the lift table 17 and sends a signal to stop the lift table 17 at the lowermost position, for example. A bottom-end detection sensor 25 that outputs a replenishment timing detection sensor 26 that detects that replenishment of the stacked tray pack groups 1A to 1D is necessary on the lift table 17, and outputs a signal notifying the worker, for example. It is detected that there is no tray pack 1 at the separation / extraction position S2 on the lift table 17 (position at which the uppermost tray pack 1 is separated and taken out on the lift table 17 at the separation position S1). A pack detection sensor 27 for outputting a signal that can set the next tray pack 1 is provided.

As shown in FIG. 4, the separation mechanism section 10 has resistance members 30 provided above respective opposing positions along the rotation direction A of each lift table 17. As shown in FIGS. 7 to 9, the resistance member 30 is provided with five triangular (sawtooth) engagement portions 31 in the vertical direction on the distal end side, and each engagement portion 31 has a predetermined angle. Inclined inclined surface 3
1a are formed. The pitch p1 (see FIG. 7) between the tips of the engaging portions 31 of the resistance member 30 is substantially equal to the stacking pitch p2 of the tray packs 1 of the tray pack groups 1A to 1D placed on the lift table 17. Is set.

The resistance member 30 is provided on a fixed plate 33 connected to the turntable 11 via a stay 32 (see FIG. 4).
8 through a bracket 34, a resistance member mounting plate 35, and a pair of holding plates 36a and 36b so that the operating position shown in FIG. 8 and the retracted position shown in FIG. 9 can be set alternatively. That is, as shown in FIG.
4, one side wall of the resistance member mounting plate 35 is attached so as to be able to advance and retreat and to be rotatable. A pair of holding plates 36a and 36 are provided at three positions along the longitudinal direction of the resistance member mounting plate 35.
The three resistance members 30 are attached in a state of being sandwiched by b.

A shaft 37 is inserted through both side walls of the resistance member mounting plate 35, and one end of the shaft 37 is fixed to the bracket 34. The other end of the shaft 37 protrudes outward from the side wall of the resistance member mounting plate 35 by a predetermined dimension.
A resistance member mounting plate 35 is always attached to the bracket 3
A coil spring 38 biasing to the fourth side is fitted. Further, a knob 39 is fixed to the outer surface of the side wall of the resistance member mounting plate 35 on the coil spring 38 side, and the resistance member mounting plate 3
The pin 40 is fixed to the side wall on the side of the bracket 34 of No. 5 so as to protrude outward. Corresponding to the pins 40 of the resistance member mounting plate 35, the bracket 34 has a pair of locking holes 4 for locking the pins 40 on a circumferential line around the shaft 37.
1a and 41b (see FIG. 8 for the locking hole 41a) are formed.

The resistance member 30 is connected to the pin 40 of the resistance member mounting plate 35 by one of the locking holes 41a of the bracket 34.
8, the knob 39 is pulled from this operating position against the urging force of the coil spring 38 to pull out the pin 40 from the locking hole 41a. In this state, by rotating the knob 39 (that is, the resistance member mounting plate 35) around the shaft 37 to lock the pin 40 in the other locking hole 41b,
It can be set to the retracted position in FIG.

Next, a method of separating and taking out each tray pack 1 of the stacked tray pack group 1A by the separating device 7 will be described. When starting the packing of agricultural products using the separation device 7, it is necessary to place the stacking tray pack group 1A to be used on the lift table 17 at the separation position S1 of the separation device 7. In this mounting operation, first, the resistance member 30 of the separation mechanism 10 of the separation device 7 is set to the retracted position shown in FIG. At the retracted position, the minimum distance w3 between the opposing resistance members 30 is set to be larger than the dimension w1 of the tray pack 1 in the front-rear direction by a predetermined dimension (w3> w1).

Then, the tray packs 1 packed in a box in the state shown in FIG. 2 are taken out of the box, and the directions of the tray packs 1 are alternately horizontally rotated by 180 degrees to be stacked in the state shown in FIG. The orientation of the tray pack 1 at the time of stacking is determined by the notch 5 provided on the substrate 2.
Are laminated alternately in the vertical direction. Thereby, a stacked tray pack group 1A is formed, and the stacked tray pack group 1A is moved to the resistance member 3 set at the retracted position.
Then, it is lowered from above to below and placed on the lift table 17.

At this time, in the stacking tray pack group 1A, the interval t2 between the tray packs 1 is widened, and the stacking pitch p2 is set substantially equal to the pitch p1 of the engaging portion 31 of the resistance member 30. Further, since the minimum distance w3 between the resistance members 30 is set to be larger than the dimension w1 of the tray pack 1, the downward movement of the stacked tray pack group 1A does not hinder the resistance members 30. After the stacking tray pack group 1A is placed on the lift table 17, the knob 39 is operated to return the resistance member mounting plate 35 to the original position.
The resistance member 30 is set to the operation position shown in FIG.

The stacking tray pack group 1A is set on the lift table 17 at the separating position S1, and one free tray 28 (see FIG. 4) is placed in a packing lane (not shown) installed near the separating device 7. When it is fed, it is placed on the lift table 17 at the separation position S1 by the suction cup 44 provided at the end of the arm of the articulated box robot 43 shown in FIGS. The uppermost tray pack 1 of the stacked tray pack group 1A that has been set (hereinafter, this uppermost tray pack 1 is referred to as a tray pack 1a for convenience of description) is sucked.

At this time, the resistance member 30 is set at the operating position shown in FIG.
Are set smaller than the dimension w1 of the tray pack 1 in the front-rear direction by a predetermined dimension, the front and rear ends 2A and 2B of the substrate 2 of each tray pack 1 are
It is located outside the tip of the engaging portion 31 of the opposing resistance member 30.

As shown in FIG. 6, in this state, when the right end 2D of the substrate 2 of the tray cup 1a, for example, is sucked by the suction cup 44 and lifted upward, as shown by the two-dot chain line in FIG. The inclined surface 31a of the engaging portion 31 of the resistance member 30 where the edges of the front and rear ends 2A and 2B of the cup 1a face each other.
Are lifted while moving upward step by step.

During the upward movement of the tray pack 1a, the tray pack 1a is slightly elastically deformed inward by the inclined surface 31a of the engaging portion 31 and then returns to its original state by the number of engaging portions 31. (Five times in this example), the concave portion 3 is formed on the back surface 2b (lower surface) of the storage concave portion 3.
Are disengaged from the tray pack 1 immediately below (the second tray pack 1 is referred to as a tray pack 1b for the sake of convenience in the following description). 1a and 1b are lifted while receiving a force (separation force) in a direction of separation.

At this time, the pitch p1 between the engaging portions 31 of the resistance member 30 is equal to the stacking pitch p of the stacked tray pack group 1A.
2, the engaging portions 31 provided in the up-down direction are always located at least between the uppermost stage and the second tray packs 1a, 1b. Engage securely. As a result, the tray pack 1a is reliably separated from the tray pack 1b while moving upward between the opposing resistance members 30.

The tray pack 1a separated from the separation / extraction position S2 on the lift table 17 at the separation position S1 and taken out by the boxing robot 43 is set in a box container set at a boxing position (not shown). Then, the agricultural product W is stored by the boxing robot 43 in the storage recess 3 of the tray pack 1a in this box container.

By the way, the tray pack 1a is moved by the operation of the boxing robot 43 so that the tray take-out position S on the lift table 17 is removed.
When the puck 2 is separated and taken out, the puck detection sensor 27 detects this state, and operates the elevating motor 21 of the corresponding lift base 17 for a predetermined time via a control device (not shown) or the like. By the operation of the lifting / lowering motor 21, the corresponding vertical screw shaft 16 is rotated, the lift table 17 at the separation position S1 is raised by one pitch, and the second tray pack 1b is placed at the separation / extraction position S2 at the uppermost tray pack. Set as 1a.

This operation is repeated a predetermined number of times, and when the lowermost tray pack 1 is detected by the replenishment timing detection sensor 26, a lamp provided on a work passage is turned on by the detection signal to separate the tray pack 1 from the worker. The fact that the stacking tray pack group 1A at the position S1 is to be replenished is notified.
When the lowermost tray pack 1 is separated and taken out, that is, when all the tray packs 1 on the lift table 17 at the separation position S1 are taken out, for example, the detection signal of the pack detection sensor 27 and the replenishment timing detection sensor 26 The lamp flashes in response to the detection signal of
Is notified to the operator, and the elevating motor 21 reverses, for example, to lower the lift table 17.
The lift base 17 is stopped at the lowermost position by being detected by the lowermost detection sensor 25.

When the next stacking tray pack group 1A is placed on the stopped lift table 17, the same operation as described above is performed, and the same operation is repeated by the boxing robot 43. When changing the type of the tray pack 1 used for the box packing operation, the motor 13 of the rotation mechanism 8 of the separation device 7 is operated by, for example, a manual operation of an operation panel (not shown) to turn the turntable 11. A predetermined number of rotations in the direction of arrow A, and a stacking tray pack group 1 having a shape to be used
This is performed by setting the lift table 17 on which B to 1D is placed at the separation position S1 of the separation device 7.

As described above, in the tray pack 1 of the above embodiment, the storage recess 3 provided on the substrate 2 is formed at a position symmetrical with respect to the center O1 of the substrate 2 by 180 degrees. 4 is formed to be 180 ° astigmatically symmetric, so that the tray pack 1
Are horizontally rotated by 180 degrees and stacked, so that the storage recesses 3 match but the protrusions 4 do not match, and the distance between the tray packs 1 of the stacked tray pack group 1A is determined according to the height h of the protrusions 4. Can be set large.

As a result, the resistive members 30 of the separating device 7 are accurately positioned and engaged between the tray packs 1, and the tray packs 1 connected vertically above and below the stacked tray pack group 1A are surely separated one by one. The tray pack 1 can be taken out, and the tray pack 1 can be taken out smoothly, so that the efficiency of boxing of agricultural products can be improved.

In particular, when the tray pack 1 having the above-mentioned shape is used, the engaging portion 31 of the resistance member 30 has a sawtooth shape and a plurality of inclined surfaces 31a.
By using the separating device 7 formed so as to have the following, the engaging portion 31 of the resistance member 30 can be accurately positioned between the tray packs 1 having a relatively large interval t2,
Each tray pack 1 of the stacked tray pack group 1A can be reliably and easily separated and taken out one by one, and a stable separating operation by the separating device 7 can be performed, thereby greatly improving the efficiency of the packing operation of the agricultural products W. Will be.

Further, even if the tray pack is used for the separation device 7, each tray pack 1 can be stably taken out from the stacked tray pack group 1A. 7 can be simplified, and the separation device 7 itself can be formed at low cost. Further, since a relatively wide interval t2 can be ensured between the tray packs 1 of the tray pack group 1A set in the separation device 7, a force (separation force) acting on the connected tray packs 1 at the time of separation. It is possible to reliably separate even a tray pack 1 having a relatively small thickness, which is relatively difficult to deform, and a tray pack 1 having a slight warp on the left and right, which has been relatively difficult. It can be applied to tray packs of different shapes.

The tray packs 1 can be stacked almost in close contact with each other when the tray packs 1 are not rotated horizontally by 180 degrees. Therefore, when the tray packs 1 are transported from the manufacturer of the tray packs to the sorting place, or when the tray packs 1 In the case where the tray packs 1 are stored and stored, the volume of the stacked tray packs 1 can be made as small as possible without being bulky, and efficient transportation and storage can be performed.

Further, the tray pack 1 to be stacked
Are all formed in the same shape, and the tray packs 1 of the same shape are stacked in the same direction and stacked in close contact with each other. Can be stacked with a predetermined interval t2 corresponding to the above, so that the tray pack 1 can be manufactured with one mold, and the manufacturing cost of the tray pack 1 is reduced, such as lower mold cost. be able to.

Further, since the notch 5 is provided at, for example, the right end 2D of the substrate 2 of the tray pack 1, the direction of the substrate 2 can be determined at a glance by the notch 5, thereby facilitating the stacking operation of the tray pack 1. And the efficiency of the box packing operation is further improved. Furthermore, the stacking interval t2 between the tray packs 1 of the stacked tray pack group 1A is set to the height h of the four convex portions.
Therefore, the interval t2 can be easily and accurately set according to, for example, the material of the tray pack 1 or the like.

In the tray pack 1 of the above embodiment, the projection 4 is formed by a projection projecting above the upper surface 2a of the substrate 2 (the direction opposite to the direction in which the storage recess 3 is recessed). 12 can be formed as shown in FIG. 10 is a plan view, FIG. 11 is a cross-sectional view taken along line BB of FIG. 10 showing the stacked state, and FIG. 12 is a cross-sectional view similar to FIG. 11 showing another stacked state. The same parts as those in the above embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted. The same applies to the following embodiments.

The feature of the tray pack 51 of this embodiment is as follows.
The point is that the projection 52 as the adhesion preventing means is projected in the same direction as the recess direction of the storage recess 3, and this projection 52 is provided continuously to the end of the storage recess 3 (see FIG. 7).
That is, at the opening end of the storage recesses 3 provided in the substrate 2 in a total of 20 rows and columns of 4 rows and 5 rows, the storage recesses 3 are successively connected to the storage recesses 3 at positions that are 180 ° asymmetry with respect to the center O1.
By projecting in the same direction as above, a projection 52 projecting toward the back surface 2b of the substrate 2 is formed.

In the state shown in FIG. 11 in which the projection 52 does not rotate horizontally by 180 degrees, the projection 52 and the storage recess 3 are aligned with each other, and a plurality of tray packs 51 are stacked in a substantially close contact state. When the layers are alternately stacked by being rotated horizontally, as shown in FIG. 12, the positions of the storage recesses 3 match but the protrusions 52 do not match, and the depth of the protrusions 52 (in the direction of the back surface 2b of the substrate 2). The interval t2 between the tray packs 51 is set to be large in accordance with the (projection height).

In this tray pack 51, the same operation and effects as those of the tray pack 1 are obtained, and when the tray pack 51 is formed by a mold, the projections 52 are formed continuously with the storage recesses 3. Therefore, the structure and the structure of the tray pack 1 can be simplified as compared with the mold of the tray pack 1, and the operation and effect of obtaining a cheaper tray pack 51 can be obtained.

FIGS. 13A to 13D are plan views showing another four modified examples of the arrangement of the storage recesses 3 and the formation positions of the projections 4 of the tray pack 1. The housing concave portion 3 is provided at a point symmetrical with respect to O1 by 180 degrees, but the convex portion 4 is provided at a position symmetrical with respect to the point. As described above, in the tray packs 1 and 51 in the above embodiment, the arrangement positions of the storage recesses 3 provided on the substrate 2 are point-symmetric with respect to the center O1 of the substrate 2 by 180 degrees. Can be provided at positions that are symmetric with respect to 180 degrees.

FIG. 14 is a plan view showing another embodiment of the tray pack according to the present invention. The feature of the tray pack 61 of this embodiment is that at least a pair of tray packs 61 are provided.
a and 61b constitute the tray pack 61. That is, in the first tray pack 61a, the storage recess 63a and the projection 64a are formed in the substrate 62a, and in the second tray pack 61b, the storage recess 63a is formed in the substrate 62b having the same outer shape as the substrate 62a. A projection 64b is formed at a position different from the storage recess 63b and the projection 64a formed in the same arrangement.

The storage recesses 63a and 63b of the first tray pack 61a and the second tray pack 61b have the same arrangement, but are 180 degrees point-symmetric with respect to the center O1 as in the tray pack 1 of the above embodiment. Therefore, when the housing is rotated horizontally by 180 degrees, the housing recesses 63a and 63b do not match, and the stacking cannot be performed with the housing recesses 63a and 63b fitted. Further, since the convex portions 64a and 64b of the first tray pack 61a and the second tray pack 61b are formed at different positions,
No matter what orientation they are stacked, they cannot be matched.

Therefore, the first tray pack 61
When the tray pack 61a and the second tray pack 61b are stacked in the same direction (the direction in which the notches 5 match), the storage recesses 63a and 63b match and the protrusions 64a and 64b do not match. Tray pack 61
A relatively large interval is set between a and 61b corresponding to the height of the convex portions 64a and 64b. When transporting or storing the tray pack 61, the first
The first tray pack 61a is stacked on the first tray pack 61a, and the second tray pack 61b is stacked on the second tray pack 61b with the same orientation (notch 5). 61b can be laminated in a state of being substantially adhered.

According to the tray pack 61 of this embodiment,
The pair of tray packs 61a and 61b cannot be formed by one mold as in the case of the tray pack 1 of the above-described embodiment. At least two molds are required, and transport and storage are separately packed in a box. However, when these are stacked, the same operation and effect as the tray pack 1 of the above embodiment can be obtained. Further, according to the tray pack 61, since there is no need to rotate the tray 180 degrees horizontally at the time of lamination, the tray pack 61 can be taken out of a separate box and laminated as it is. For example, the configuration of the apparatus for mechanizing the lamination work can be simplified. The function and effect of being able to obtain is obtained.

FIGS. 15 to 17 are plan views showing modifications of the tray pack 61 of this embodiment. The tray pack 61 shown in FIG. 15 has a first tray in which a storage recess 63a and a projection 64a are formed. This is composed of a pack 61a and a second tray pack 61b which is formed only with the storage recess 63b and has no projection. The tray pack 6 shown in FIG.
Reference numeral 1 denotes a first tray pack 61a in which a storage concave portion 63a and a convex portion 64a projecting in the concave direction of the storage concave portion 63a are formed, and a convex portion similar to (but different in position from) the storage concave portion 63b and the convex portion 64a. The second tray pack 61b on which the second tray pack 64b is formed.

The tray pack 61 shown in FIG.
A first tray pack 61a in which a storage recess 63a and an upwardly projecting protrusion 64a are formed, a storage recess 63b, and FIG.
6 and a second tray pack 61b provided with a convex portion 64b having the shape shown in FIG. In such a tray pack 61, the tray pack 61 shown in FIG.
The same operation and effect as described above can be obtained.

The shapes of the concave and convex portions of the tray pack in each of the above embodiments are not limited to those of the respective embodiments, and the respective embodiments can be appropriately combined. The outer shape of the tray pack, the position and number of cutouts, the specific configuration of the separation device, and the like in the examples are merely examples, and it goes without saying that various changes can be made without departing from the spirit of each invention.

[0060]

As described in detail above, according to the first aspect of the present invention, the adhesion preventing means works only by stacking the tray packs by rotating the tray packs by 180 degrees horizontally, so that the tray packs are not adhered to each other. Since the stacked tray packs are reliably and easily separated by a separating device or the like, the tray packs can be smoothly taken out to improve the efficiency of box packing work, and in a state where the tray packs are not rotated horizontally by 180 degrees, The tray packs can be stacked in close contact, and the efficiency of transporting and storing the tray packs is improved.

According to the second aspect of the present invention, when one tray pack is rotated horizontally by 180 degrees and the other tray pack is vertically stacked, the interval between the upper and lower tray packs is reduced by the adhesion preventing means. Since it is wider, the same effect as that of the first aspect of the invention can be obtained, for example, the separation by the separation device or the like becomes reliable and easy.

According to the third aspect of the present invention, the first
By simply stacking the second tray pack on the same tray pack in the same direction, the adhesion preventing means of both tray packs acts to prevent the adhesion, so that the separation of the tray packs by the separation device or the like is ensured. In addition, the stacking operation can be easily performed.

According to the fourth aspect of the present invention, the tray packs to be stacked are prevented from sticking together by the protrusion projecting in the direction opposite to the recess direction of the storage recess, and the stacking interval can be easily and accurately determined. Can be set. Also,
According to the fifth or sixth aspect of the present invention, the convexity projecting in the same direction as the direction of the recess of the storage recess prevents the close contact, and the structure of the mold for the toilet pack is simplified, so that the tray is inexpensive. A pack is obtained.

According to the seventh aspect of the present invention, the direction in which the tray packs are stacked can be easily aligned in a predetermined direction by the direction instructing means. It has the effect of further improving the efficiency.

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment of an agricultural product packaging tray pack according to the present invention.

FIG. 2 is a cross-sectional view taken along line AA of FIG.

FIG. 3 is a cross-sectional view similar to FIG. 2, showing another stacked state.

FIG. 4 is a partially broken plan view of a separation device that can use the tray pack according to the present invention.

FIG. 5 is a front view showing a part of the cross section.

FIG. 6 is an explanatory view of a method for separating and taking out the tray pack.

FIG. 7 is a perspective view of a main part of the separation device.

FIG. 8 is an explanatory diagram of the operation of the separation device.

FIG. 9 is another operation explanatory view of the separation device.

FIG. 10 is a plan view showing a modification of the tray pack.

FIG. 11 is a cross-sectional view taken along the line BB of FIG.

FIG. 12 is a cross-sectional view similar to FIG. 11, showing another laminated state;

FIG. 13 is a plan view showing another modification of the tray pack.

FIG. 14 is a plan view showing another embodiment of the tray pack according to the present invention.

FIG. 15 is a plan view showing a modified example thereof.

FIG. 16 is a plan view showing still another modification.

FIG. 17 is a plan view showing still another modification.

[Explanation of symbols]

 1 ... Tray packs 1A to 1D ... Stacked tray pack group 2 ... Board 2A ... Front end 2B ... ································································· Separating device 8 Rotating mechanism 9 Lift mechanism 10 Separating mechanism 11 Rotary table 17 Lift table 30 Resistance member 31 Engagement part 31a Slope 35 ····························································································· ..Convex parts 61 ... First tray pack 61b... Second tray pack 62a, 62b... Substrate 63a, 63b... Part S1 ··········· Separation position S2 ··················

Claims (7)

[Claims] 1. An agricultural product packaging tray pack having an adhesion preventing means capable of stacking and preventing adhesion between a plurality of storage recesses and a stacked tray pack, wherein the tray pack rotates 180 degrees in a horizontal plane. In this case, the plurality of storage recesses are arranged so as to be aligned before and after rotation, and the adhesion preventing means acts after rotation to prevent the stacked tray packs from being in close contact with each other. Tray pack. 2. A tray pack having a plurality of storage recesses and stackable in the vertical direction. The tray pack has one tray pack and one tray pack in a horizontal plane.
When rotated by 80 degrees and stacked in the vertical direction, the plurality of storage recesses are arranged so as to match before and after rotation, and the interval between the upper and lower tray packs after rotation is larger than the interval during stacking before rotation. A tray pack for packing agricultural products, characterized in that the tray pack is provided with a settable means for preventing adhesion. 3. A tray pack having a plurality of storage recesses and stackable in a vertical direction, wherein the tray pack includes at least a first tray pack having a plurality of storage recesses, and a first tray pack having at least a plurality of storage recesses. A second tray pack having a storage recess matching the storage recess of the first tray pack when stacked in a predetermined orientation, wherein at least one of the first tray pack and the second tray pack has both A tray pack for packing agricultural products, characterized by being provided with an adhesion preventing means capable of preventing adhesion when the tray packs are stacked. 4. The tray pack for packaging agricultural products according to claim 1, wherein said adhesion preventing means is formed by a convex portion projecting in a direction opposite to the direction of the recess of the storage concave portion. . 5. The tray pack for packaging agricultural products according to claim 1, wherein said adhesion preventing means is formed by a projection projecting in the same direction as the recess direction of the storage recess. . 6. The agricultural product packaging tray pack according to claim 5, wherein a convex portion of said adhesion preventing means is formed continuously with the storage concave portion. 7. The agricultural product packaging tray pack according to claim 1, wherein said tray pack is provided with a direction indicating means for indicating a direction.