JP6598006B2 - Fruit tray, fruit tray set, citrus fruit harvesting method and citrus fruit preservation method - Google Patents

Description

  The present invention relates to a fruit tray used for harvesting fruits, particularly citrus fruits, a fruit tray set including a plurality of the fruit trays, a method for harvesting citrus fruits using the fruit tray, and a method for preserving citrus fruits.

  Conventionally, in the harvesting of various fruits, etc., a concave portion for accommodating fruits for the purpose of facilitating handling of the fruits and preventing damage to the fruits due to contact between fruits and external impacts, etc. A tray provided with a plurality of is used.

  For example, in Patent Document 1, an article holder having a plurality of article storage portions, which has a holding wall surface inside an outer peripheral wall portion and has a cylindrical bottom portion continuous with the holding wall surface formed below the holding wall surface. Is disclosed. Further, Patent Document 2 discloses a fruit pulp mold tray in which a plurality of fruit receiving recesses are formed.

JP 2000-168868 A (released on June 20, 2000) JP 2005-96827 A (published April 14, 2005)

  However, the article holder disclosed in Patent Document 1 is not configured to stack and use a plurality of the article holders. In addition, the fruit pulp mold tray disclosed in Patent Document 2 is configured such that a plurality of the fruit pulp mold trays can be used in a stacked manner. The inner bottom surface of the housing recess and the fruit surface come into contact with each other. Therefore, when the fruit's own weight is applied to the place where the fruit comes into contact with the inner bottom surface, there is a problem in that the contact place is damaged and spoilage occurs therefrom.

  The present invention has been made in order to solve the above-mentioned problems, and the purpose of the present invention is to prevent the rot of citrus fruits even when a plurality of fruit trays in a state where the fruits are stored are stacked. It is in providing the fruit tray which can be suppressed effectively.

  In order to solve the above-described problems, a fruit tray according to one aspect of the present invention is a fruit tray having a plurality of recesses that accommodates the citrus fruits so that one of the top part or the infarction part of the citrus fruit protrudes. Each of the plurality of recesses is in contact with a side surface of the citrus fruit to support the citrus fruit, and a housing portion for housing the other of the citrus fruit top or infarction. And a space is formed between the inner bottom surface of the housing portion and the other top of the citrus fruit or the top of the citrus fruit, and the outer surfaces of the recesses adjacent to each other among the plurality of recesses. Is formed in a shape corresponding to the shape of the portion of the citrus fruit protruding from the fruit tray, the height from the outer bottom surface of the housing portion to the topmost portion of the outer surface shape, Above fruit It formed higher than the height of the portion of the citrus fruit projecting from Ray.

  According to one aspect of the present invention, even when a plurality of fruit trays in a state in which citrus fruits are accommodated are stacked, the top of the citrus fruits and the infarction are not in contact with the fruit tray. In addition, it is possible to suppress the occurrence of rot of citrus fruits from the infarction.

(A) is a top view which shows typically the structure of the principal part of the fruit tray which concerns on one Embodiment of this invention. (B) is AA arrow directional cross-sectional view of the said fruit tray. (C) is sectional drawing of the said fruit tray seen from the BB arrow. It is sectional drawing which shows roughly the accommodation state of the lemon at the time of stacking the said 2 fruit tray. It is a perspective view which shows typically the stacking method of two said fruit trays. It is sectional drawing which shows typically the mode of the inside in the state which the two said fruit trays piled up. It is a bar graph which shows the maximum impact strength added to the harvested lemon in each of the customary zone and the impact mitigation countermeasure zone. It is a line graph which shows transition of the cumulative decay of the harvested lemon and the fruit skin damage fruit rate in each of the customary and impact mitigation measures. It is a graph which shows transition of humidity and temperature in a low-temperature storage. (A)-(f) is a 6-plane figure of the said fruit tray. (G) is AA arrow directional cross-sectional view of the said fruit tray.

<Outline of fruit tray>
First, with reference to FIG. 1 and FIG. 2, the outline | summary of the fruit tray 1 which concerns on one Embodiment of this invention is demonstrated. In the following description, for the sake of convenience, the vertical upper side is the upper side, the vertical lower side is the lower side, the lower side is the front side, the upper side is the rear side, and the upper side is the rear side. The left side is the left side.

  The fruit tray 1 is a tray for storing the lemon 2 when harvesting, storing, transporting and shipping the lemon (citrus fruit) 2. The fruit tray 1 is provided with the main-body part 1a, the several recessed part (multiple recessed part) 11 for fruit accommodation, the support part 12, and the stopper 13 as shown to (a) of FIG. In addition, the fruit used as the accommodation object of the fruit tray 1 is not limited to lemon 2, What is necessary is just citrus fruits, such as a tangerine and an orange.

Moreover, the fruit tray 1 is a product made from a pulp mold. The pulp mold is used as a material such as a tray for storing fruits, vegetables, etc. using raw paper such as newspapers, paper packs, cardboard or OA paper as well as virgin pulp. The fruit tray 1 preferably uses 100% of old newspaper (freeness: 330 ml to 380 ml (Canadian standard method, converted to a temperature of 20 ° C.)) as a raw material for the pulp mold. In this case, it is more preferable to use old newspaper with a production amount of 375 g (water content 60%), a dry weight of 120 g ± 10 g, a film thickness of 1 mm and a specific gravity of 3 kg / m ³ (unmanaged). Note that the fruit tray 1 is not limited to a pulp mold, and may be manufactured using, for example, a material obtained by mixing a chemical with old newspaper, a resin or a nonwoven fabric.

  A cutout portion (one of the four corners of the fruit tray) 1b as shown in FIG. 1A is provided at one of the four corners of the main body 1a. This notch 1b is arranged on the upper side of the fruit tray 1 so that the fruit receiving recesses 11 of the other fruit tray 1 are arranged one by one on all the support parts 12 (described later) of the fruit tray 1. It serves as a mark for placing the fruit tray 1.

  Specifically, another fruit tray 1 is placed on the upper side of the fruit tray 1 in a state where the fruit tray 1 is rotated by 180 ° in plan view from the arrangement of the fruit tray 1 as shown in FIG. That is, the position of the distance Q from the left side surface in the other fruit tray 1 that is at a position diagonal to the position of the distance P overlaps the position of the distance P from the right side surface of the fruit tray 1. At the same time, the distance S from the front side surface in the other fruit tray 1 at the position of the distance R from the rear side surface of the fruit tray 1 and the position of the distance R overlaps the fruit tray 1. What is necessary is just to mount on the upper side of 1. A method of stacking a plurality of fruit trays 1 using the notch 1b as a mark will be described later.

  In addition, the shape of the notch part 1b is not limited to the shape shown by (a) of FIG. 1, It can design arbitrarily. Further, for example, a notch (not shown) having a shape different from that of the notch 1b may be provided at a corner of the main body 1a opposite to the notch 1b.

  On the two side surfaces of the main body 1a facing each other in the short direction, as shown in FIG. A stop 1d is provided. By locking a finger to each of these locking portions, the user can carry the fruit tray 1 more reliably. Further, even when a plurality of fruit trays 1 are stacked, the user can reliably carry the plurality of fruit trays 1.

  In the main body 1a shown in FIG. 1A, the shape and size of the first locking portion 1c are different from the shape and size of the second locking portion 1d. However, the shape or the like of each of the locking portions is not limited to the case of FIG. 1A, and any shape can be used as long as it can lock the user's finger. Moreover, you may provide the 1st latching | locking part 1c and the 2nd latching | locking part 1d in the two side surfaces of the longitudinal direction which mutually oppose in the main-body part 1a.

  The fruit accommodating recess 11 is a substantially concave member in which the lemon 2 is actually accommodated in the fruit tray 1. Moreover, the recessed part 11 for fruit accommodation is designed in the magnitude | size which assumed the lemon 2 of S grade (vertical diameter; 90 mm) and ML class (vertical diameter; 95 mm) as accommodation object. As shown in FIG. 1 (a), a total of 24 fruit accommodating recesses 11 in 4 rows × 6 columns are arranged in a lattice pattern on the main body 1a in plan view. Moreover, the recessed part 11 for fruit accommodation is provided with the accommodation wall part 11a and the accommodating part 11b, as shown to (b) and (c) of FIG. 1, and both are formed in a row. In addition, the number and arrangement | positioning aspect of the recessed part 11 for fruit accommodation are not limited to the case of the above grid | lattice form of 4 rows x 6 columns, but can change a design arbitrarily. Also, the size of the fruit accommodating recess 11 can be arbitrarily changed so that the lemons 2 of various sizes can be accommodated.

  When the lemon 2 is accommodated in the fruit tray 1, as shown in FIG. 2, the fruit apex part 2 b and the fruit apex part 2 c-2 of the equatorial part (side surface) 2 c protrude from the fruit accommodating recess 11. In addition, the accommodation aspect of the lemon 2 to the fruit tray 1 is not limited to when the fruit top part 2b and the fruit part side part 2c-2 of the equatorial part 2c protrude from the recessed part 11 for fruit accommodation. The lemon 2 may be accommodated so that the fruit incline part 2a and the fruit incline part 2c-1 of the equator part 2c protrude from the fruit accommodating recess 11 (not shown). In other words, the fruit tray 1 should just be what can accommodate the citrus fruit so that one of the top part or the infarction part of the citrus fruit protrudes from the recessed part 11 for fruit accommodation.

  The housing wall 11 a has a function of supporting the lemon 2. Specifically, as shown in FIG. 2, the inflamed portion 2c-1 (side surface of the citrus fruit) of the equator portion 2c of the lemon 2 is the inner surface of the containing wall portion 11a, and the shape thereof is the inflamed portion. The lemon 2 is supported by contacting the inner support wall 11c substantially the same as the shape of the side portion 2c-1.

  In addition, the shape of the support inner wall 11c is not limited to the shape substantially the same as the incline part 2c-1 of the equator part 2c. If the lemon 2 is to be accommodated so that the fruit incision part 2a and the fruit incline part 2c-1 of the equator part 2c protrude from the fruit accommodating recess 11, the fruit apex part 2c-2 of the equator part 2c The shape may be substantially the same (not shown). In other words, the accommodation wall part 11a should just be a shape where the shape of the support inner wall 11c contacts a part of equatorial part of citrus fruit, ie, the side surface of citrus fruit. In addition, the fruit accommodating recess 11 only needs to have a structure in which the lemon 2 is supported by a part of the inner side surface (in this embodiment, the supporting inner wall 11c of the accommodating wall 11a).

  The accommodating part 11b is a substantially bowl-shaped shape as shown to FIG. 1, (b) and (c), and accommodates the incline part 2a of the lemon 2 in the inside. When the lemon 2 is accommodated in the fruit tray 1, a first space (space) 11e as shown in FIG. 2 is formed between the inner bottom surface 11d of the accommodating portion 11b and the perilla portion 2a. Here, it is preferable that the apex of the infarction portion 2a and the inner bottom surface 11d are separated from each other by about 2.5% to 5% of the vertical diameter of the lemon 2. In the present embodiment, the lemons 2 to be accommodated in the fruit tray 1 are S grade and M to L grade, so that the first space 11e is 2.between the apex of the infarction portion 2a and the inner bottom surface 11d. It is formed so as to be separated by about 5 mm to 5 mm.

  In addition, if it is a case where the lemon 2 is accommodated so that the infarction part 2a and the infarction part 2c-1 of the equator part 2c protrude from the fruit tray 1, the accommodation part 11b has the top part 2b of the lemon 2. Be contained. In other words, the accommodation part 11b only needs to accommodate the other of the top part of the citrus fruit or the infarction part. When the top 2b of the lemon 2 is stored in the storage 11b, the first space 11e is formed between the inner bottom 11d and the top 2b (not shown). Moreover, the shape of the accommodating part 11b is not limited to a substantially bowl shape, The shape which can accommodate the said incision part 2a so that the 1st space 11e may be formed between the inner bottom face 11d and the inclement part 2a of lemon 2. If it is a thing.

  Here, the first space 11e only needs to be wide enough to prevent a part of the infarct portion 2a from contacting the inner bottom surface 11d. Specifically, the first space 11e is such that a region corresponding to a length of about 5 mm in the vertical direction from the apex of the infarction portion 2a in the S-grade and M-L grade lemons 2 does not contact the inner bottom surface 11d. As long as the area is secured.

  Moreover, as shown in FIG. 2, the outer side surface shape formed by the outer side surface 11g of the two adjacent fruit accommodation recessed parts 11 protrudes from the fruit tray 1, and the top part side of the fruit top part 2b and the equatorial part 2c It is formed in a shape corresponding to the shape of the part 2c-2 (part of citrus fruit). Furthermore, the fruit tray 1 has a portion from the outer bottom surface 11f of the housing portion 11b to a support bottom surface (the topmost portion of the outer surface shape) 12b, which will be described later, a portion of lemon 2 protruding from the fruit tray 1 (a portion of citrus fruit) ) To be higher than the height.

  Specifically, the height from the outer bottom surface 11f to the support bottom surface 12b is the apex of the infarct portion 2a of the lemon 2 accommodated in the lower fruit tray 1 when two identical fruit trays 1 are stacked. To the support bottom surface 12b in the upper fruit tray 1 is preferably designed to have a value obtained by adding a length of 5% to 10% of the vertical diameter to the vertical diameter of the lemon 2. In the present embodiment, the lemons 2 to be accommodated in the fruit tray 1 are S grade and M to L grade, so the height from the outer bottom surface 11f to the support bottom surface 12b so that the virtual height is 100 mm. Is designing.

  In addition, if it is a case where the lemon 2 is accommodated from the fruit tray 1 so that the incline part 2c-1 of the incense part 2a and the equator part 2c protrudes, the outer surface shape is the inclement part 2a and the equator part. It is formed in a shape corresponding to the shape of the incline portion 2c-1 of 2c.

  The support part 12 is a member for supporting the other fruit tray 1 when placing another fruit tray (second fruit tray) 1 of the same shape on the upper side of the fruit tray (first fruit tray) 1. is there. As shown in FIG. 1 (a), a total of 24 support parts 12 of 4 rows × 6 columns in a plan view are arranged in a grid pattern on the main body part 1a so as to be surrounded on all sides by the fruit accommodating recesses 11. Has been.

  In addition, the number and arrangement | positioning aspect of the support part 12 are not limited to when arrange | positioning at the grid | lattice form of 4 rows x 6 columns so that four sides may be surrounded by the recessed part 11 for fruit accommodation, The design can be changed according to the arrangement mode. That is, in the state where the number of the support parts 12 and the number of the fruit receiving recesses 11 are the same number and the other fruit tray 1 is placed on the upper side of the fruit tray 1, all the support parts 12 of the fruit tray 1 are placed. What is necessary is just to become the arrangement | positioning aspect of the support part 12 in which the recessed part 11 for fruit accommodation of the other fruit tray 1 is arrange | positioned one by one.

  Moreover, the support part 12 is provided with the support upper surface 12a as shown to (b) and (c) of FIG. And as shown in FIG. 2, by mounting the other fruit tray 1 on the upper side of the fruit tray 1 so that the support upper surface 12a and the outer bottom face 11f of the accommodating part 11b in the other fruit tray 1 may contact, The support part 12 supports the other fruit tray 1.

  When the fruit tray 1 is shipped to the purchaser of the fruit tray 1, the stopper 13 can be shipped by stacking a plurality of (for example, about 100) fruit trays 1. When 1 is used alone, it is a substantially wall-shaped member provided to ensure releasability when each fruit tray 1 is peeled off. The presence of the stopper 13 can prevent one of the two fruit trays 1 that overlap each other from being fitted into the other. Therefore, when peeling each fruit tray 1 at the time of delivery to the purchaser, workability is improved and deformation and tearing of the fruit tray 1 can be prevented. As shown to (a) of FIG. 1, the stopper 13 is provided between the two support parts 12 adjacent to each other so that the fruit accommodating recessed part 11 may surround four sides.

<Stacking multiple fruit trays>
Next, the accommodation state of the lemon 2 in the case where another fruit tray 1 is placed on the upper side of the fruit tray 1 according to the embodiment of the present invention will be described with reference to FIG.

  As shown in FIG. 2, when another fruit tray 1 is placed on the upper side of the fruit tray 1 in a state where the lemon 2 is housed in the fruit tray 1, The height to the support bottom surface 12b becomes higher than the height of the portion of the lemon 2 protruding from the fruit tray 1. Therefore, the outer side surface 11g and the support bottom surface 12b of the two fruit accommodating recesses 11 adjacent to each other in the other fruit tray 1, and the top part 2b and the top part side part 2c-2 of the equatorial part 2c which are the parts of the lemon 2 A second space 11h is formed between the two.

  Specifically, the second space 11h has such a height that the apex of the infarction portion 2a in the S-grade and M-L grade lemons 2 does not contact the supporting bottom surface 12b of the other fruit tray 1. Further, the second space 11h only needs to be wide enough so that a part of the fruit top portion 2b does not contact the outer surface 11g and the support bottom surface 12b. Specifically, in the S grade and M to L grade lemons 2, the area corresponding to the length in the vertical direction from the apex of the top 2 b of about 5 mm does not contact the outer surface 11 g and the support bottom surface 12 b. Should be secured.

  Next, a method for stacking a plurality of fruit trays 1 will be described with reference to FIGS. 3 and 4. 3 and 4, for convenience of explanation, each of the two fruit trays 1 included in the plurality of fruit trays 1 is referred to as a first fruit tray 100 and a second fruit tray 200, and the upper side of the first fruit tray 100. The case where the second fruit tray 200 is placed is described as an example.

  As shown in FIG. 3, when the first fruit tray 100 is rotated 180 ° in the plan view from the arrangement in the figure, the second fruit tray is located above the location where the cutout portion 100 b of the first fruit tray 100 is located. The second fruit tray 200 is placed on the upper side of the first fruit tray 100 so that the 200 notches 200b are arranged.

  By stacking the first fruit tray 100 and the second fruit tray 200 by this stacking method, as shown in FIG. 4, the fruit receiving recesses of the second fruit tray 200 on all the support parts 120 of the first fruit tray 100. 210 are arranged one by one. In other words, all the lemons 2 contained in the first fruit tray 100 can be covered with the second fruit tray 200 by this stacking method.

  By stacking the other fruit trays 1 other than the first fruit tray 100 and the second fruit tray 200 by the same stacking method as described above, even when the number of lemons 2 to be accommodated is large, a plurality of fruits are stored. All of the lemons 2 to be accommodated can be accommodated using the tray 1.

  The plurality of fruit trays 1 can be used as a fruit tray set including a plurality of identically shaped fruit trays 1 used when the number of lemons 2 to be accommodated is large. In this case, the stacking method of the first fruit tray 100 and the second fruit tray 200 includes a lemon 2 harvesting method using a fruit tray set (citrus fruit harvesting method) and a lemon 2 storage method using a fruit tray set ( It can be applied to the preservation method of citrus fruits.

  Specifically, in the method for harvesting lemon 2 using the fruit tray set, the fruit storing step of storing lemon 2 in the first fruit tray 100 and the second fruit tray 200 placed on the upper side of the first fruit tray 100 And a fruit tray mounting step. And by repeating the fruit accommodation process and the fruit tray mounting process until the lemon 2 is accommodated in all of the fruit accommodating recesses 11 of the plurality of fruit trays (each fruit tray) 1, the lemon 2 to be harvested is obtained. Harvest.

  Moreover, the storage method of the lemon 2 using a fruit tray set is the storage preparation which piles up all the fruit trays 1 in the state which accommodated the lemon 2 of a preservation | save object in each recessed part 11 for fruit accommodation of several fruit trays 1. It comprises a step (preservation preparation step) and a storage state maintenance step (preservation state maintenance step) for maintaining the state where all the fruit trays 1 are stacked until the storage period of the lemon 2 expires.

  Furthermore, the fruit tray 1 provided with the some recessed part 11 for accommodating the fruit 2 which accommodates the lemon 2 so that one of the fruit stem part 2a or the fruit top part 2b of lemon 2 protrudes can be manufactured with the following method.

  (1) By immersing a molding die (not shown) having a molding surface having the same shape as the fruit tray 1 in a raw material liquid made from waste paper, the infarction portion 2c of the equator portion 2c of the lemon 2 The first space 11e is formed between the support inner wall 11c that contacts the -1 and supports the lemon 2, and the inner bottom surface 11d of the accommodating portion 11b and the other infarction portion 2a or the top portion 2b of the lemon 2. The inner surfaces of the plurality of fruit-receiving recesses 11 are formed so that the accommodation part 11b that accommodates one of the fruit infarction part 2a or the fruit top part 2b is connected to each other (recess inner surface forming step).

  (2) Lemon with which the outer surface shape formed by the outer surface 11g of the fruit receiving recesses 11 adjacent to each other among the plurality of fruit receiving recesses 11 protrudes from the fruit tray 1 substantially simultaneously with the recess inner surface forming step. 2 and the height from the outer bottom surface 11f of the accommodating portion 11b to the support bottom surface 12b of the support portion 12 is higher than the height of the lemon 2 portion protruding from the fruit tray 1. In this manner, the outer surfaces of the plurality of fruit receiving recesses 11 and the support bottom surface 12b of the support portion 12 are formed (molding step of the recess outer surface, etc.).

<Effect by stacking multiple fruit trays containing lemon>
Next, with reference to FIG. 5 and FIG. 6, the effect obtained when the harvesting method of stacking a plurality of fruit trays 1 containing lemons 2 will be described.

  FIG. 5 shows the maximum impact strength applied to the lemon 2 when the lemon 2 is harvested in the customary zone and the impact mitigation zone in the lemon field (not shown) where the lemon 2 is grown. It is a bar graph. The vertical line at the top of the bar graph in the figure indicates the standard error. Further, “**” indicates that there is a significant difference (t test) with a risk rate of 1%.

  FIG. 6 shows that lemon 2 harvested on December 20, 2012, in each of the customary and impact mitigation measures, began to be stored on December 25, and was spaced approximately one month from January 18, 2013. The cumulative rot and peel damage rate of Lemon 2 was investigated and the transition was plotted in a line graph. In addition, “ns” in the figure indicates that there is no significant difference (t test) at a risk rate of 5%, “*” indicates a significant difference at a risk rate of 5%, and “**” indicates a significant difference. Is present (t test).

  Here, the customary zone is the lemon 2 by a general harvesting method (hereinafter referred to as “conventional method”) in which a conventional container container (not shown) is placed on the ground and the harvested lemon 2 is bulk-loaded in the container. Refers to the area where you harvested. Further, the impact mitigation countermeasure zone refers to a district where the lemon 2 is harvested by a harvesting method using a plurality of fruit trays 1 (hereinafter referred to as “impact mitigation method”).

  As shown in FIG. 5, the maximum impact strength applied to the lemon 2 harvested in the impact mitigation zone is about one fifth of the maximum impact strength applied to the lemon 2 harvested in the conventional zone. In addition, as shown in FIG. 6, the significance of the impact mitigation method is recognized after the harvest date in June for the cumulative rot and peel damage fruit rate of lemon 2.

  Next, with reference to FIG. 7 and Tables 1 to 3, effects obtained when a storage method in which a plurality of fruit trays 1 containing lemons 2 are stacked will be described. The following explanation is based on a storage method in which a plurality of fruit trays 1 are stacked in a low temperature storage (not shown) with a period from May 9th to October 2nd, 2014 as a storage period (preservation period). This is based on a survey example when lemon 2 is stored. During the storage period, the decay rate and quality change of lemon 2 and the moisture content of fruit tray 1 were investigated. Moreover, as shown in FIG. 7, the humidity and temperature in the low temperature storage during the storage period change from a maximum of 103.5% to a minimum of 42.5%, and a temperature of a maximum of 16.0 ° C. to the minimum. It changed at 4.4 ° C.

  First, the decay rate of lemon 2 during the storage period was as shown in Table 1. Specifically, after the end of the storage period (October 2nd), the decay rate of the impact mitigating container section was 7.6%, and the decay rate of the bulk loading section was 19.8% (including co-rotted fruit) The rate of rot was lower than that of 6.5%), and the rate of co-rot was 0%. Here, the bulk stacking area refers to an area in a low-temperature storage that employs a storage method in which lemons 2 are stored in a state of being stacked in a conventional container container. Moreover, an impact relaxation container area points out the area | region in the low temperature store | warehouse | chamber which employ | adopted the storage method using the several fruit tray 1. FIG. Furthermore, the rot rate in the table is a value obtained by statistically processing the Arcsin-transformed value, and the sum in the table is a value calculated by calculating the sum of green mold disease, blue mold disease and shaft rot disease.

  Moreover, the quality change of the lemon 2 during the storage period was as shown in Table 2. Specifically, the acidity of Lemon 2 is 6.2% in the bulk loading section, which is lower than the acidity before storage (6.47%), while the impact mitigation container section is 6.6%. It was higher than the acidity before storage, and the impact mitigation container area was also significant in terms of quality. Here, the acidity of lemon 2 before storage is as of May 9. The difference in the table is the value after storage period (October 2) minus the corresponding value before storage (May 2). The color is a value obtained by arbitrarily measuring one part of the equator part 2c of lemon 2 and the center part of the grinder with a handy color difference meter (NR-3000; manufactured by Nippon Denshoku Industries Co., Ltd.).

  Further, the moisture content of the fruit tray 1 during the storage period was as shown in Table 3. Specifically, the moisture content of the fruit tray 1 after the end of the storage period (October 2) was 13.8% on average, and contained much moisture compared to the dry state before storage. From this, it can be said that by using the fruit tray 1 for storing the lemon 2, there is an effect of suppressing the decay of the lemon 2 due to moisture. In addition, each value in a table | surface is measured by drying the fruit tray 1 by blowing 65 degreeC warm air from a ventilation type dryer for 5 days after completion | finish of a storage period.

  FIG. 8 is a six-side view of the fruit tray 1. 8A is a plan view of the fruit tray 1, FIG. 8B is a front view of the fruit tray 1, FIG. 8C is a left side view of the fruit tray 1, and FIG. 8 (e) is a right side view of the fruit tray 1, FIG. 8 (f) is a bottom view of the fruit tray 1, and FIG. 8 (g) is an AA view of the fruit tray 1. FIG. FIG.

[Summary]
As for the fruit tray (1, 1st fruit tray 100, 2nd fruit tray 200) which concerns on aspect 1 of this invention, one of the top part (2b) or the infarction part (2a) of a citrus fruit (lemon 2) protrudes. In this way, the fruit tray is provided with a plurality of recesses for storing the citrus fruits (fruit storing recesses 11), each of the plurality of recesses contacting the side surface of the citrus fruit (equatorial part 2c) and A supporting inner wall (11c) that supports the citrus fruit and a housing part (11b) for housing the other of the fruit top part or the infarction part of the citrus fruit are formed continuously, and the inner bottom surface (11d) of the housing part ) And the other top of the citrus fruit or the other end of the citrus fruit, a space (first space 11e) is formed, and the outer surface (11g) of the adjacent recesses among the plurality of recesses is formed. The outer shape is the top The fruit is formed in a shape corresponding to the shape of the portion of the citrus fruit protruding from the fruit tray, and the height from the outer bottom surface (11f) of the housing portion to the topmost portion (supporting bottom surface 12b) of the outer surface shape is the fruit. It is formed higher than the height of the citrus fruit portion protruding from the tray.

  According to the said structure, each of the some recessed part provided in the fruit tray which concerns on this invention has a support inner wall which contacts the side surface of a citrus fruit and supports a citrus fruit. Further, the supporting inner wall is formed continuously with a housing portion for housing one of the citrus fruit top part or the infarction part, and the inner bottom surface of the housing part and the citrus fruit top part or infarction part are formed. A space is formed between them.

  Therefore, the fruit tray which concerns on this invention can accommodate a citrus fruit in a recessed part, without making one of the top part or citrus part of a citrus fruit contact the inner bottom face of a accommodating part. Therefore, by preventing one of the fruit top part or the fruit stem part from coming into contact with the inner bottom surface of the housing part, one of the fruit top part or the fruit leaf part is damaged due to the weight of the citrus fruit or the friction generated at the contact point. Can do. As a result, the occurrence of rot of citrus fruits from one of the fruit top part or the fruit curse part can be suppressed.

  Moreover, according to the said structure, the outer surface shape formed by the outer surface of the mutually adjacent recessed part is a shape of the site | part of the citrus fruit which protrudes from a fruit tray (including one of the top part of fruit or citrus fruit). The height from the outer bottom surface of the housing portion to the topmost portion of the outer surface shape is formed higher than the height of the portion protruding from the fruit tray.

  Therefore, for example, when using a plurality of stacked fruit trays according to the present invention, the protruding part of the citrus fruit contained in the specific fruit tray is placed on the upper side of the specific fruit tray. The possibility of contacting the outer surface of the fruit tray is reduced. Therefore, it is possible to reduce damage to one of the fruit top portion or the infarction portion protruding from the lower fruit tray by contacting the outer surface of the recess in the upper fruit tray. Moreover, when the load of the citrus fruit accommodated in the upper fruit tray is applied, it is also possible to reduce the damage of one of the fruit top part or the infarction part protruding from the lower fruit tray.

  From the above, even when a plurality of fruit trays according to the present invention in a state where citrus fruits are accommodated are stacked, it is possible to suppress the occurrence of rot of citrus fruits from the top part and the infarction part.

  In the fruit tray according to aspect 2 of the present invention, in the aspect 1, the material of the fruit tray is preferably a pulp mold.

  According to the above configuration, the pulp mold is harder and stronger than other materials made from paper. For example, when citrus fruits are stored in a fruit tray for a long period of time, the citrus fruits are used rather than the other materials. The fruit tray can be prevented from being damaged, such as a recess being broken by the weight of the fruit. Also, since the pulp mold has a higher moisture absorption rate than the resin, for example, when citrus fruits are stored in a fruit tray for a long period of time, the decay of citrus fruits due to moisture such as moisture rather than resin Can be suppressed. Furthermore, the fruit tray can be reduced in weight as compared with the resin one.

  In the fruit tray according to aspect 3 of the present invention, in the aspect 2, it is preferable that the raw material of the pulp mold is newspaper waste paper.

  According to the above configuration, since newspaper waste paper is harder and stronger than other papers, for example, when citrus fruits are stored in a fruit tray for a long time, the weight of the citrus fruits is higher than that of other papers. Breakage of the fruit tray such as breaking of the recess can be suppressed. In addition, because newspaper waste paper has a higher moisture absorption rate than resin, for example, when citrus fruits are stored in a fruit tray for a long period of time, citrus fruits caused by moisture such as moisture rather than resin as a raw material. Corruption can be suppressed. Furthermore, the weight of the fruit tray can be reduced as compared with the case where the resin is a raw material.

  In the fruit tray according to aspect 4 of the present invention, in any one of aspects 1 to 3, the citrus fruit is preferably a lemon.

  Lemon has a shape in which the vicinity of the top part of the fruit top part and the infarction part protrudes from other citrus fruits such as orange. Therefore, the top part and the infarction part of lemon are weak against the impact received from the outside compared with the top part and the infarction part of other citrus fruits. In that respect, according to the said structure, by using the fruit tray which concerns on this invention for accommodation of lemon, it can suppress more effectively the decay | degradation generation | occurrence | production of the lemon from a fruit top part and an infarction part.

  The fruit tray according to Aspect 5 of the present invention is the fruit tray according to any one of Aspects 1 to 4, wherein the plurality of recesses are arranged in a lattice shape so as to surround four sides of the outermost surface shape. It is preferable that the shape of one of the four corners (the notch 1b) is different from the other three shapes.

  According to the said structure, the fruit tray becomes a shape arrange | positioned at the grid | lattice form so that a some recessed part may surround the four sides of the outermost surface shape top part. Therefore, when two fruit trays of the same shape are stacked, by rotating the upper fruit tray 180 ° in plan view from the same arrangement on the basis of the arrangement of the lower fruit tray, all the concave parts of the upper fruit tray are It can be placed one by one on the surface opposite to the top of the outer surface shape in the lower fruit tray.

  In a state where two fruit trays are stacked in this way, the other three of the four corners in the lower fruit tray and the other three in the upper fruit tray are positioned diagonally to the other three parts. Parts with different shapes will be arranged. Therefore, the part of the shape different from the other three of the four corners of the fruit tray is such that all the concave parts of the upper fruit tray are arranged one by one on the surface opposite to the topmost part of the lower fruit tray. Serves as a marker for stacking two fruit trays. Therefore, when stacking a plurality of fruit trays, the lower fruit tray and the upper fruit tray are overlapped in a state of being shifted by using a portion having a shape different from the other three of the four corners of the fruit tray as a mark. Can be effectively prevented.

  The fruit tray set according to Aspect 6 of the present invention is a fruit tray set including a plurality of fruit trays having the same shape, and each fruit tray included in the fruit tray set has a citrus fruit top or infarct portion. A plurality of recesses for accommodating the citrus fruits are provided so that one protrudes, and each of the plurality of recesses contacts a side surface of the citrus fruits to support the citrus fruits, and the fruits of the citrus fruits And a housing portion for housing the other one of the top portion or the fruit curd portion, and a first space is formed between the inner bottom surface of the housing portion and the other top portion of the citrus fruit or the other fruit portion. When each of the two fruit trays formed and included in the fruit tray set is a first fruit tray (100) and a second fruit tray (200), the second fruit tray is the first fruit tray. In the state of being placed on the upper side of the tray, among the plurality of recesses (fruit receiving recesses 210) provided in the second fruit tray, the outer surfaces of the recesses adjacent to each other and the projecting from the first fruit tray A second space (11h) is formed between the citrus fruits.

  According to the above configuration, when a plurality of the fruit trays included in the fruit tray set according to the present invention are stacked and used, the lower side and the upper side of the citrus fruit contained in each fruit tray other than the uppermost fruit tray are used. Each has a space (first space and second space). Moreover, while the 1st space is formed under the citrus fruit accommodated in the uppermost fruit tray, the upper side is open | released. Therefore, more citrus fruits can be accommodated as compared with the case where citrus fruits are accommodated in one fruit tray while suppressing the occurrence of citrus fruits from the top and infarction portions.

  The citrus fruit harvesting method according to aspect 7 of the present invention is a citrus fruit harvesting method using a fruit tray set including a plurality of fruit trays of the same shape, and each fruit tray included in the fruit tray set includes: The citrus fruit is provided with a plurality of recesses for accommodating the citrus fruit so that one of the top part or the infarction part protrudes, and each of the plurality of recesses contacts a side surface of the citrus fruit and the citrus fruit is The supporting inner wall to support and the accommodation part for accommodating the other of the top part or the infarction part of the citrus fruit are formed continuously, and the inner bottom surface of the accommodation part and the top part or the infarction part of the citrus fruit are formed. A first space is formed between the second fruit tray and each of the two fruit trays included in the fruit tray set is a first fruit tray and a second fruit tray. In a state in which a is placed on the upper side of the first fruit tray, the citrus projecting from the outer surface of the concave parts adjacent to each other among the plurality of concave parts provided in the second fruit tray and the first fruit tray. A second space is formed between the fruit parts, a fruit housing step for housing the citrus fruit in the first fruit tray, and a fruit for placing the second fruit tray on the upper side of the first fruit tray. A citrus fruit to be harvested is harvested by repeating the above-described fruit accommodation step and the above-described fruit tray placement step.

  According to the above configuration, when the fruit storage step and the fruit tray mounting step are repeated until the citrus fruits to be harvested are stored in the plurality of recesses provided in each of the fruit trays included in the fruit tray set, Spaces are respectively formed on the lower side and the upper side of the citrus fruits contained in each fruit tray other than the uppermost fruit tray (first space and second space). Moreover, while the 1st space is formed under the citrus fruit accommodated in the uppermost fruit tray, the upper side is open | released. Therefore, it is possible to harvest more citrus fruits as compared with the case of harvesting citrus fruits using a single fruit tray while suppressing the occurrence of citrus fruits from the top and infarction. .

  The method for preserving citrus fruits according to aspect 8 of the present invention is a method for preserving citrus fruits using a fruit tray set that includes a plurality of fruit trays of the same shape, and each fruit tray included in the fruit tray set includes: The citrus fruit is provided with a plurality of recesses for accommodating the citrus fruit so that one of the top part or the infarction part protrudes, and each of the plurality of recesses contacts a side surface of the citrus fruit and the citrus fruit is The supporting inner wall to support and the accommodation part for accommodating the other of the top part or the infarction part of the citrus fruit are formed continuously, and the inner bottom surface of the accommodation part and the top part or the infarction part of the citrus fruit are formed. A first space is formed between the other fruit and the two fruit trays included in the fruit tray set are a first fruit tray and a second fruit tray. In a state in which a is placed on the upper side of the second fruit tray, the citrus projecting from the outer surface of the adjacent recesses among the plurality of recesses provided in the first fruit tray and the second fruit tray Preservation step of stacking the fruit trays in a state where a second space is formed between the fruit parts and the citrus fruits to be stored are accommodated in the plurality of recesses provided in the fruit trays, respectively. And the preservation | save state maintenance process of maintaining the state by which each said fruit tray was piled up is included.

  According to the said structure, when the said each fruit tray is stacked in the state which accommodated the citrus fruit of the preservation | save object in the some recessed part provided in each of each fruit tray contained in a fruit tray set (preservation preparation process), Spaces are respectively formed on the lower side and the upper side of the citrus fruits contained in each fruit tray other than the uppermost fruit tray (first space and second space). Moreover, while the 1st space is formed under the citrus fruit accommodated in the uppermost fruit tray, the upper side is open | released. Therefore, it is possible to preserve more citrus fruits as compared with the case of harvesting citrus fruits using a single fruit tray, while suppressing the occurrence of citrus fruits from the top and infarction. .

1 Fruit tray 1b Notch (one of the four corners of the fruit tray)
2 Lemon (citrus fruit)
2a Infarction part 2b Fruit top part 2c Equatorial part (side)
11, 210 Fruit storage recess (recess)
11b Housing portion 11c Support inner wall 11d Inner bottom surface 11e First space (space)
11f outer bottom surface 11g outer side surface 11h second space 12b supporting bottom surface (the topmost portion of the outer surface shape)
100 1st fruit tray 200 2nd fruit tray

Claims (8)

A fruit tray having a plurality of recesses for accommodating the citrus fruit so that one of the top part or the infarction part of the citrus fruit protrudes,
Each of the plurality of recesses is connected to a side wall of the citrus fruit so as to support the citrus fruit and a receiving portion for receiving the other of the top part or the infarction part of the citrus fruit. Formed,
A space is formed between the inner bottom surface of the housing part and the top of the citrus fruit or the other of the infarction,
The outer surface shape formed by the outer surfaces of the recesses adjacent to each other among the plurality of recesses is formed in a shape corresponding to the shape of the portion of the citrus fruit protruding from the fruit tray,
The height from the outer bottom surface of the housing part to the topmost part of the outer surface shape is formed higher than the height of the citrus fruit part protruding from the fruit tray ,
The outer surface shape is
In a state where the fruit tray having the same shape is placed on the upper side of the fruit tray, the entire surface of the outer side surface of the adjacent recesses in the fruit tray having the same shape projects from the fruit tray. Fruit tray, characterized in that it does not come into contact with any part of the fruit.   The fruit tray according to claim 1, wherein the material of the fruit tray is a pulp mold.   The fruit tray according to claim 2, wherein the raw material of the pulp mold is newspaper waste paper.   The fruit tray according to any one of claims 1 to 3, wherein the citrus fruit is a lemon. The plurality of concave portions are arranged in a lattice shape so as to surround the four sides of the topmost portion of the outer surface shape,
The fruit tray according to any one of claims 1 to 4, wherein one of the four corners of the fruit tray is different from the other three shapes. A fruit tray set including a plurality of fruit trays of the same shape,
Each fruit tray included in the fruit tray set includes a plurality of recesses for accommodating the citrus fruit so that one of the top part or the infarction part of the citrus fruit protrudes,
Each of the plurality of recesses is connected to a side wall of the citrus fruit so as to support the citrus fruit and a receiving portion for receiving the other of the top part or the infarction part of the citrus fruit. Formed,
A first space is formed between the inner bottom surface of the housing portion and the other top of the citrus fruit or the top of the citrus fruit,
When each of the two fruit trays included in the fruit tray set is a first fruit tray and a second fruit tray,
In a state where the second fruit tray is placed on the upper side of the first fruit tray, the entire outer surface of the recesses adjacent to each other among the plurality of recesses provided in the second fruit tray is the first fruit. A fruit tray set, wherein the fruit tray set does not come into contact with the citrus fruit portion protruding from the tray. A method for harvesting citrus fruits using a fruit tray set including a plurality of fruit trays of the same shape,
Each fruit tray included in the fruit tray set includes a plurality of recesses for accommodating the citrus fruit so that one of the top part or the infarction part of the citrus fruit protrudes,
Each of the plurality of recesses is connected to a side wall of the citrus fruit so as to support the citrus fruit and a receiving portion for receiving the other of the top part or the infarction part of the citrus fruit. Formed,
A first space is formed between the inner bottom surface of the housing portion and the other top of the citrus fruit or the top of the citrus fruit,
When each of the two fruit trays included in the fruit tray set is a first fruit tray and a second fruit tray, the second fruit tray is placed on the upper side of the first fruit tray. Without contacting the entire outer surface of the recesses adjacent to each other among the plurality of recesses provided on the two fruit trays, with the citrus fruit portion protruding from the first fruit tray,
A fruit storage step of storing the citrus fruit in the first fruit tray, and a fruit tray mounting step of mounting the second fruit tray on the upper side of the first fruit tray,
A method for harvesting citrus fruits, wherein the citrus fruits to be harvested are harvested by repeating the fruit accommodation step and the fruit tray placement step. A method for preserving citrus fruits using a fruit tray set comprising a plurality of fruit trays of the same shape,
Each fruit tray included in the fruit tray set includes a plurality of recesses for accommodating the citrus fruit so that one of the top part or the infarction part of the citrus fruit protrudes,
Each of the plurality of recesses is connected to a side wall of the citrus fruit so as to support the citrus fruit and a receiving portion for receiving the other of the top part or the infarction part of the citrus fruit. Formed,
A first space is formed between the inner bottom surface of the housing portion and the other top of the citrus fruit or the top of the citrus fruit,
When each of the two fruit trays included in the fruit tray set is a first fruit tray and a second fruit tray, the first fruit tray is placed on the upper side of the second fruit tray. The entire outer surface of the recesses adjacent to each other among the plurality of recesses provided on one fruit tray does not come into contact with the citrus fruit part protruding from the second fruit tray,
A storage preparation step of stacking the fruit trays in a state in which the citrus fruits to be stored are accommodated in the plurality of recesses provided in each of the fruit trays, and storage for maintaining the stacked state of the fruit trays. A method for preserving citrus fruits, comprising a state maintaining step.

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