KR20120070505A - Containment tray - Google Patents

Abstract

PURPOSE: A storage tray is provided to enable users to vertically laminate plural storage trays with the regular interval by combining the upper side of a thin pillar unit of a stacking unit to the lower side of another thin pillar unit. CONSTITUTION: A storage tray includes a flat unit with parts around a product storing unit(2) vertically curved to be protruded to outside, a side frame unit(9) including an outer wall unit, stacking units(13), trays, and a pillar unit. The trays are laminated into multiple layers for supporting a tray located on the upper side using another tray located on the lower side. The stacking units are vertically installed on a bottom unit(3) of a caved-in unit formed on the outer surface of the side frame unit, and includes the thin pillar unit(16) extended toward the flat unit.

Description

Storage tray {CONTAINMENT TRAY}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a storage tray comprising a vacuum molded body of a thin sheet of synthetic resin suitable for storing electronic parts, daily necessities, and other articles for storage, transportation, or display.

For example, as the storage tray 100 used in production processes, such as an electronic component, as shown in FIG. 23, the circumference | surroundings of the article storage part 101 divided | segmented by the longitudinal and horizontal ribs 102 were made into the outer periphery rib 103. As shown in FIG. The outer periphery ribs 103 are enclosed and formed into an inverted tapered cross-sectional shape such that the width of the upper surface 103a of the ribs is wider than the width of the lower end opening portion, and the storage tray 100 is formed up and down. When overlapping with, the lower end of the outer circumferential rib 103 of the upper storage tray 100 abuts on the upper surface of the outer circumferential rib 103 of the lower storage tray 100 to prevent immersion of the outer circumferential rib 103. It is known that it is comprised so that the storage trays 100 and 100 can be piled up and down in multiple stages (for example, refer patent document 1, 2, 3).

Japanese Utility Model Publication No. 61-5711 Japanese Unexamined Patent Publication No. 10-329886 Japanese Laid-Open Patent Publication 2000-72147

By the way, in the production process of electronic components, if the storage trays can be stacked in the same direction, an artificial miss in the storage operation is less likely to occur. Can be provided to

The storage tray 100 shown in FIG. 23 can stack the storage trays 100 in the same direction, but when the electronic component to be stored is a heavy object or the storage tray 100 is piled up in multiple stages. As shown in the same drawing (C), the edge of the outer circumferential rib 103 is easily opened and deformed by the downward load received from the storage tray 100 at the upper end. There was a problem.

Although this type of storage tray used for transporting various articles including electronic parts has been developed to reduce the thickness of the synthetic resin material due to the reduction in weight and the request for reducing the material cost, the strength decreases when the synthetic resin material is thinned. Therefore, a structure capable of maintaining strength even if thin is desired. If the inclination angle of the reverse tapered outer circumferential rib 103 can be largely secured, the strength is high, but the cost of the molding die is high.

SUMMARY OF THE INVENTION In view of such problems with the prior art, the present invention provides a storage tray made of a vacuum molded body of a thin synthetic resin sheet, in which a desired strength is maintained even when the entire tray is thinly formed, and the tray containing the article is vertically upward and downward. It is a subject to make it possible to provide in multiple stages, and to stack | stack in multiple stages.

In order to solve the above problems, the present invention, the periphery of the article storage portion is surrounded by a flat portion protruding outwardly from the storage portion and a side frame portion consisting of an outer wall portion which is bent downward from the flat portion and widened downward at an angle. A storage tray comprising a vacuum molded body made of a thin synthetic resin sheet, the storage tray configured to allow the lower tray to stack the upper trays superposed in the same direction in a plurality of stacks formed in the side frame part so as to be stacked up and down. ,

Each of the stack portions has a thin pillar portion standing up from the bottom portion of the recess portion and extending to the flat portion in the recess portion formed on the outer surface of the side frame portion. It is characterized by having each made and formed configuration.

According to the storage tray of the said structure, in the state which piled up storage trays in the same direction, the upper end of the thin column part of a stack part of a lower end is joined to the lower end of the thin column part of a stack part of an upper end, and the upper and lower storage trays have a fixed space | interval. Can be stacked while maintaining.

The thin pillars joined at the stack portions stacked up and down respectively have concave portions formed on both side surfaces of the lower portion thereof, and the spacing between both sides of the thin pillar portions is formed so that the lower side thereof becomes smaller than the upper portion thereof. The upper end of the part abuts against the lower end of the narrow width of the upper thin column part, so that the lower thin column part does not immerse in the upper thin column part well. In addition, by forming the pillars in each stack portion, the side frame portions are reinforced to prevent them from spreading outwardly. When a large impact is applied to the storage trays stacked in stages, the upper and lower pillar portions join the upper and lower ends together, and the outer peripheral direction of the tray is By absorbing each other, the shock is absorbed, so that the side frame parts are not easily caused to deform outward.

In the storage tray of the said structure, it is preferable to have the structure which formed both the lower side surface of a thin pillar part, and the bottom part of a recessed part, respectively, to a taper part, and formed the recessed surface part in both side surfaces of the thin pillar part above both taper parts, respectively.

By connecting both lower side surfaces of the thin column portion to the bottom of the recessed portion via the tapered portion, the concave surface portions formed above the both taper portions can be formed with appropriate thickness, and the tapered portions can be formed on both lower sides of the lower column portion. By forming, when the storage trays are stacked in stages, the thin column portions of the lower storage trays can be accurately guided to the engagement positions of the thin column portions up and down along the tapered portion lower surface of the upper storage tray.

Moreover, in the storage tray of the said structure, it is preferable to have a structure in which the some thin pillar part was formed in the recessed part at appropriate intervals.

By forming a thin column in the recess, the strength of the side frame is increased, so that it is difficult to open to the outer circumference. When a plurality of thin columns are formed at least one pair at an appropriate interval, the side frame is placed when the heavy material is placed on the storage tray. With respect to the stress in the gaping direction acting on the part, the thin pillars act to be brought into contact with each other to prevent the side frame portion from being opened, and thus the strength of the side frame portion can be further increased.

In addition, the present invention relates to a dish-shaped storage tray formed of a vacuum molded body of a thin synthetic resin sheet formed around a side frame portion formed of a flat portion and an outer wall portion, and having a plurality of stack portions formed on the outer circumferential surface of the side frame portion. In

Each of the stack portions is formed in a recess formed on an outer circumferential surface of the side frame portion, and is formed between the thin pillar portions formed in the recess portion following the flat portion, between the lower side surfaces of the thin pillar portion and the bottom portion of the recess portion. It is provided with the taper part and the concave surface part dug inwardly formed in the upper side of the said both taper parts as the lower both side surfaces of the said thin column part, It is characterized by the above-mentioned.

Moreover, as another aspect of this invention, the plate shape which consists of the vacuum molded object of the synthetic resin thin plate which the circumference | surrounding of an article accommodating part is enclosed by the side frame part which consists of a flat part and an outer wall part, and the several peripheral part was formed in the inner peripheral surface of the said article accommodating part In the storage tray of,

Each said stack part is formed in the inner peripheral surface of the said article accommodating part, The thin pillar part standing up from the bottom surface of the said article accommodating part, The taper part formed between the both sides of the upper part of the said thin column part, and the said flat part, It is characterized by being provided with the concave surface part which protruded in the direction which becomes narrow in the inner surface space | interval of a thin column part as the upper both side surfaces of the thin column part, and below the said taper part.

Moreover, as another aspect of this invention, the plate shape which consists of a vacuum molded object of the synthetic resin thin plate which surrounds the periphery of an article accommodating part by the side wall part which stood up from the bottom surface, and forms the flat part which protruded outward on the upper end of the side wall part is formed. An accommodating tray comprising: an accommodating tray configured to support an upper end tray stacked in the same direction in a plurality of stack parts formed on an upper side of the side wall part so as to support the lower end tray and stack the upper and lower sides thereof;

Each of the stack portions includes a plurality of thin pillars standing up from the bottom of the recess portion and extending from the bottom portion of the side wall portion to the flat portion at appropriate intervals. A tapered portion is formed between both side surfaces and the bottom portion of the recess.

Even with the storage trays of the above configurations, the upper end of the thin column portion of the lower stack portion is lower than the lower end of the thin column portion of the upper stack portion in a state where the storage trays storing the articles are superimposed in the same direction or in different directions. By bonding, the upper and lower storage trays can be stacked at regular intervals.

The storage tray of this invention can be formed by vacuum-molding a thin sheet-shaped resin plate using synthetic resin materials, such as polyethylene terephthalate (PET), polypropylene, and polystyrene, for example. The molding material is not limited to this, and other suitable resin materials may be used.

Although the said thin column part is a hollow plate-shaped protrusion, although it changes also with the thickness of a storage tray, for example, the clearance gap between both side surfaces (between hollow parts) can be formed in the thickness of about 1-10 mm. The concave surface portions formed on both side surfaces of the thin pillar portion can be formed by digging in an appropriate width in consideration of the releasability during molding, as the inwardly tapered surface formed by the undercut processing. For example, in the case of a thin pillar portion formed with a gap between the two side surfaces of about 1.5 mm, the concave surface portion may be formed in a size that is recessed by a width of 0.5 to 0.75 mm, respectively, from the both sides to the inner side of the pillar portion. Further, in the case of a thin column portion having a thickness of about 1 to 4 mm between the two side surfaces, when the concave portions of both sides are in contact with each other, that is, formed into a shape that penetrates both sides of the lower side of the thin column portion, the thin column portion at the lower end is stable. It is more effective in supporting.

In addition, a recess is formed in the inner circumferential surface of the article storage portion, and in the recess, a thin pillar portion leading to the flat portion, a tapered portion formed between both side surfaces of the lower portion of the thin pillar portion and a bottom portion of the recess portion, You may form the stack part provided with the inwardly recessed recessed part formed above the said both taper part as the lower both sides of the lower pillar part.

The position and number of the stack portions formed in the storage tray, the width and depth of the recesses forming the stack portion, the size and number of the thin column portions formed in the recesses are designed according to the weight and shape of the article to be stored. It can select suitably according to the shaping | molding dimension of a storage tray, molding material, molding conditions, etc. Even when the stack portion is formed on the inner circumferential surface of the article storage portion, its position and number, the size and number of the thin pillar portion, and the like can be appropriately selected according to the same conditions as described above.

1 is an external perspective view of a storage tray of a first embodiment of the present invention.
FIG. 2 is a plan view of the storage tray of FIG. 1. FIG.
3 is a front view of the storage tray of FIG. 1.
4 (A) is an enlarged appearance of the main portion of the stack portion, and (B) and (C) are cross-sectional views along the BB line and CC line of (A), respectively.
5 is an enlarged cross-sectional view of a thin column portion formed in the stack portion.
FIG. 6: is a figure which showed typically the thin column part when the storage trays were piled up and down, and showed the superposition state of a stack part. FIG.
7: (A) is a front view, (B) is a side view of the storage tray piled up-and-down.
8 is an external perspective view of the storage tray of the second embodiment of the present invention.
9 is a plan view of the storage tray of FIG. 8.
10 is a cross-sectional view along the line XX of FIG. 9.
It is a side view when the storage tray of 2nd Embodiment is piled up and down.
It is an external appearance perspective view of the storage tray of 3rd Embodiment of this invention.
FIG. 13 is a plan view of the storage tray of FIG. 12.
It is an external appearance perspective view of the storage tray of 4th Embodiment of this invention.
FIG. 15 is a plan view of the storage tray of FIG. 14.
16 is an enlarged plan view of a stack portion of the storage tray of the fourth embodiment.
17A and 17B are cross-sectional views taken along a line AA and FIG. 16B of FIG. 16.
It is sectional drawing which shows the superposition state of the stack part when the storage trays of 4th Embodiment are piled up and down.
It is an external appearance perspective view of the storage tray of 5th Embodiment of this invention.
20 is an enlarged cross-sectional view of a main portion of the stack of the storage tray of FIG. 19.
FIG. 21 is an enlarged inner side view of the stack portion of the storage tray of FIG. 19. FIG.
It is sectional drawing which shows the superposition state of the stack part when the storage trays of 5th Embodiment are piled up and down.
(A) is a top view which shows an example of the conventional storage tray, (B) is a principal part sectional drawing for demonstrating the state which reverse tapered ribs overlapped, and (C) is a principal part sectional drawing for demonstrating the state which an outer peripheral rib opens. .

One preferred embodiment of the present invention will be described with reference to the drawings.

1-3 show the external perspective view, the top view, and the front view of the storage tray of 1st Embodiment of this invention, respectively, This storage tray 1 shape | molds PET of sheet form by vacuum molding, The circumference | surroundings of the article storage part 2 to be accommodated are enclosed with the side frame part 9, and it is formed in the square dish shape.

In detail, the article storage part 2 exhibits substantially rectangular shape in planar view as a whole, and the bottom surface 3 is the width direction similar to the rib 4 which passed through the center of the said storage part, and continued in the longitudinal direction. The concave portion 7 which is divided into four accommodating regions 6 by ribs 5 connected to each other and is deeply recessed below the bottom surface 3 in each of the four corners of each accommodating region 6. And shallowly recessed portions 8 are formed.

The side frame portion 9 is a frame shape having a U-shape in which a cross section extending along the peripheral edge of the article storage portion 2 faces downward, at the edge portion of the bottom surface 3 of the article storage portion 2. The inner wall portion 10 which stands up substantially vertically upward, the flat portion 11 which is bent almost horizontally from the upper end of the inner wall portion 10 and protrudes outward, and is folded downward from the outer end of the flat portion 11. Three stack portions 13 are each formed in the side frame portion 9 formed by the outer wall portion 12 that extends obliquely downward, and constitutes two opposite lengths of the storage tray 1. The stack part 14 is formed in the side frame part 9 which comprises a corner part, respectively.

The three stack portions 13 formed on two opposite length sides of the storage tray 1 are arranged at positions spaced apart at equal intervals toward the width sides on both sides from the center portion of the length side and the center portion, respectively. 13 forms and forms two thin columnar parts 16 and 16 in the recess 15 formed in the outer surface of the side frame part 9.

In more detail, as shown in FIG. 4, the recessed part 15 is bent substantially horizontally from the lower end of the outer surface part 15a and the outer surface part 15a which were bent substantially vertically from the flat part 11 in the downward direction. The bottom part 15b which leads to the outer wall part 12 is formed in the shape cut | disconnected in the suitable width and depth from the upper surface of the flat part 11 of the side frame part 9 to the outer wall part 12, The two thin columnar portions 16 and 16 are integrally formed at positions spaced apart from the center of the recesses 15 at equal intervals, respectively.

The thin columnar portion 16 stands up substantially vertically above the bottom portion 15b following the bottom portion 15b of the recess 15, and the upper end 16a is almost horizontal to the flat portion 11. To the hollow plate-shaped protrusions which protrude in a direction substantially perpendicular to the outer circumferential surface of the storage tray 1 while maintaining a narrow width from the outer surface portion 15a of the recess 15. While the lower portion is connected to the bottom portion 15b of the recess 15 through the tapered portions 17 and 17, the concave surface portion (at a position slightly above the portion to which both the tapered portions 17 and 17 are connected) 16c and 16c) are formed and formed.

The concave surface portions 16c and 16c formed on both side surfaces 16b and 16b of the thin columnar portion 16 are portions in which both side surfaces 16b and 16b are recessed in an inverse taper shape by undercut processing of a mold. As shown in FIG. 5, the gap between both side surfaces 16b and 16b is formed such that the gap Dl of the concave surface portions 16c and 16c is narrower than the gap Dh of the upper end 16a thereof. It is.

In addition, as shown in FIG. 4, the concave rib 18 is formed in the outer wall part 12 between two thin pillar parts 16 and 16. As shown in FIG.

Moreover, the stack part 14 formed in the four corner corner parts of the storage tray 1 is one thin column along the diagonal direction in the recessed part 15 formed in the side frame part 9 of the corner part similarly to the above. The part 16 is integrally projected and formed. The thin columnar portion 16 of the four corner corner portions is connected to the bottom portion 15b of the recessed portion 15 via the tapered portions 17 and 17, and slightly smaller than the portion to which both the tapered portions 17 and 17 are connected. The concave surface parts 16c and 16c are formed in the upper position similarly to the above.

When the storage tray 1 of this form comprised in this way puts the storage tray 1 on the horizontal support surface, the recessed part 7 and the outer wall part of the side frame part 9 in the article storage part 2 are carried out. The lower end portion of the 12 is in contact with the support surface so that the bottom surface 3 of the article storage portion 2 is kept horizontal, so that the articles stored in the respective storage regions 6 are horizontally supported on the bottom surface 3. can do.

When storing articles in the storage tray 1 and storing them in multiple stages, as shown in FIG. 7, when the upper storage tray 1 is superposed on the lower storage tray 1, the upper storage tray The inner circumferential surface of the outer wall portion 12 of the outer wall portion 12 is covered with the outer circumferential surface of the outer wall portion 12 of the lower storage tray 1, and further includes each stack portion 13, 13 of the opposite length sides of the upper and lower storage trays 1, 1; The stack portions 14 and 14 of the four corner corner portions overlap each other, and the upper and lower ends of the respective stack portions are engaged with each other so that the stacks can be stably stacked without shifting positions while maintaining a constant gap between the upper and lower storage trays 1 and 1. .

That is, as shown in FIG. 6, the upper end 16a of the thin columnar part 16 of the stack part 13 of the lower storage tray 1 in the state which piled up the storage trays 1 and 1 mutually up and down. This is caught by the lower part of the taper parts 17 and 17 of the stack part 13 of the storage tray 1 of the upper end, and is fitted to the lower end of the thin columnar part 16 between the said taper parts 17 and 17, and Each columnar portion 16 of the lower storage tray 1 is positioned at the fitting position.

At this time, each thin column part 16 forms the concave surface parts 16c and 16c in the lower part of the both side surfaces 16b and 16b, and narrows the clearance gap of the lower end part of the thin column part 16, and is thin by this. The bending strength of the pillar 16 is increased, so that the lower pillar 16 is not immersed or crushed in the upper pillar 16. Moreover, the side frame part 9 is reinforced and deformed by forming two or more stack parts 13 and 14 in the side frame part 9, respectively, and forming the thin column part 16 which protrudes outward. This hardly occurs, and even if a large weight is applied to the lower storage trays 1 stacked in stages, the side frame portion 9 does not cause deformation such as spreading outward.

Moreover, since each stack part 13 is formed in the corresponding position of the side frame part 9 in the opposing length side edge of the storage tray 1, the storage tray 1 is multistage even if it is the same direction or the opposite direction. Can be stacked stably.

8 to 11 show a storage tray according to the second embodiment of the present invention. The storage tray 1 is formed in a rectangular plate shape by vacuum forming a sheet-shaped PET in the same manner as the above embodiment. The stack part 19 is formed in the outer peripheral surface of the width | variety and the length of the side frame part 9 surrounding the circumference | surroundings of the accommodating part 2, respectively, and is comprised.

In detail, the structure of each stack part 19 is the same as the said form, and the recessed part 15 is formed in the outer surface of the side frame part 9, and in this recessed part 15, the flat part 11 is carried out. While forming the thin column part 16 which leads to the upper part, the taper part 17 and 17 is formed between the lower both sides of the thin column part 16, and the bottom part of the recessed part 15, and the thin column part Concave surface portions 16c and 16c which are recessed inwardly are formed above both tapered portions 17 and 17 as the lower both side surfaces of 16.

Each recessed part 15 formed in the periphery of the side frame part 9 is formed in the length of almost the length side and the width side except the four corner corners of the storage tray 1, respectively, Five thin post 16 are equally spaced in the recess 15, and the four thin posts 16 are equally spaced in the recess 15 of both width sides.

The storage tray 1 of this form comprised in this way accommodates an article in the storage tray 1 similarly to the said form, and if this overlaps up and down, as shown in FIG. 11, the lower storage tray 1 is shown. The upper end 16a of the thin columnar portion 16 of the stack portion 19 of the stack 19 is hooked to the lower portion of the tapered portions 17 and 17 of the stack portion 19 of the storage tray 1 at the upper end thereof. 17, 17 are fitted to the lower end of the thin columnar portion 16, each thin columnar portion 16 at the lower end is positioned at the fitting position, and the stack portions of the upper and lower storage trays (1, 1) ( The upper and lower ends of 19 and 19 are engaged, and can be stably stacked without shifting positions while maintaining a constant gap between the upper and lower storage trays 1 and 1.

12 and 13 show a storage tray according to a third embodiment of the present invention. The storage tray 1 is formed in a rectangular plate shape by vacuum forming a sheet-shaped PET in the same manner as the above embodiment. Two stack portions 20 are formed on the outer circumferential surfaces of the four sides of the frame portion 9, respectively, and the inner circumferential surface of the article storage portion 2 and the inner surface of the rib 4 partitioning the inside of the article storage portion 2. Also, a plurality of stack portions 21 are formed and configured.

In detail, two stack portions 20 are formed at equal intervals from the center of each side of the side frame portion 9 to the corner portion side, and are formed on the outer surface of the side frame portion 9 in the same manner as the above embodiment. In the recessed part 15, the thin columnar part 16 which leads to the flat part 11 is built up, and the taper part 17 is formed between the lower both sides of the thin columnar part 16, and the bottom part of the recessed part 15. And 17, and concave surface portions 16c and 16c which are inwardly recessed above both taper portions 17 and 17 are formed as both lower side surfaces of the thin columnar portion 16. As shown in FIG. In each stacking section 20, three thin columnar sections 16 are arranged at equal intervals.

Moreover, the stack part 21 forms the recessed part 15 in the inner surface of the article storage part 2, and the inner surface of the rib 4 which partitions the inside of the said article storage part 2, respectively, and is the same as the said form. Preferably, in each of the recesses 15, thin columnar portions 16 leading to the flat portion 11 are erected and tapered between the lower sides of the thin columnar portions 16 and the bottom of the recesses 15. FIG. While forming (17, 17), concave surface portions (16c, 16c) which are inwardly recessed above both tapered portions (17, 17) are formed as both lower side surfaces of the thin columnar portion (16). In each stack portion 21, two thin columnar portions 16 are disposed.

Also in the storage tray 1 of this form comprised in this way, if the article is accommodated in the storage tray 1 similarly to the said form, and this is piled up and down, the stack part 20 of the upper and lower storage trays 1 and 1 is carried out. , 20) and the upper and lower ends of the stack portions 21 and 21 are engaged, and can be stably stacked without shifting positions while securing a constant gap between the upper and lower storage trays 1 and 1.

14 to 18 show a storage tray according to a fourth embodiment of the present invention. The storage tray 1 is formed in a rectangular plate shape by vacuum forming a sheet-shaped PET in the same manner as the above embodiment. The stack part 22 is formed in the inner peripheral surface of the accommodating part 2, and is comprised.

In detail, the article storage part 2 is formed from the bottom surface 2 of the storage tray 1, and is divided | segmented into the grid | lattice-shaped storage space by the some protrusion part 23, and the article storage part Four stack portions 22 are formed on the inner surface along both sides of the length (2) and the inner surface along both sides of the width.

As shown in FIG.16 and FIG.17, each stack part 22 stands up and forms the pillar part 16 which is thin from the bottom surface 3 of the article storage part 2, and of this thin pillar part 16 While connecting the upper both sides and the flat part 11 which is the upper surface of the storage tray 1 through the taper parts 17 and 17, both taper parts 17 and 17 as upper upper both sides of the thin column part 16, ), Recesses 16c and 16c which protrude in the direction which narrows between the inner surfaces of the thin columnar part 16 are formed and formed.

When the storage tray 1 of this form comprised in this way overlaps the storage tray 1 which accommodated the article up and down, as shown in FIG. 18, of the stack part 22 of the upper storage tray 1 as shown in FIG. The lower end of the thin columnar portion 16 is hooked to the upper portion of the tapered portions 17 and 17 of the stack portion 22 of the lower storage tray 1, and the thin columnar portion between the tapered portions 17 and 17 ( It is fitted to the upper end of 16, and each thin columnar part 16 of the upper storage tray 1 is positioned in the said fitting position, and each stack part 22 of the upper and lower storage trays 1 and 1 comrades with each other. Are overlapped, and the upper and lower ends of the upper and lower stack portions 22 and 22 are engaged with each other, and the stack can be stably stacked without shifting positions while maintaining a constant gap between the upper and lower storage trays 1 and 1.

19 to 22 show a storage tray according to the fifth embodiment of the present invention. The storage tray 1 is formed in a rectangular plate shape by vacuum forming a sheet-shaped PET in the same manner as the above embodiment. A plurality of stack portions 25 are formed along the upper portion of the side wall portion 23 that surrounds the storage portion 2.

In detail, the storage tray 1 of this form is a tray with a shallow bottom which shows the substantially rectangular shape when the article storage part 2 as a whole is planar, and has a bottom surface 3 around the article storage part 2. ) Is surrounded by a side wall portion 23 standing up obliquely upward, and the upper end of the side wall portion 23 is a flat portion 24 which protrudes horizontally outwardly at an appropriate width, The stack portions 25 are formed in the centers of the sides of the four side peripheral portions of the side wall portions 23, respectively.

Each stack portion 25 is a bottom portion 15b of the recessed portion 15 in the recessed portion 15 formed by digging downward from the upper portion of the sidewall portion 23 to an appropriate width over the flat portion 24. ) And two thin column portions 16, 16 standing up from the flat portion 24 to the flat portion 24 at appropriate intervals, and both thin column portions 16, 16 are formed at both sides 16b, 16b and Tapered portions 17 and 17 are formed between the bottom portions 15b of the recesses 15 to form them.

Between the upper end 16a, 16a of both thin columnar parts 16 and 16, and between the upper end 16a of the thin columnar part 16, and the inner surface of the adjacent recessed part 15, the boundary part with the flat part 24 This curved opening 26 is provided. 20 and 21, the opening 26 has a wide width at the upper side facing the flat portion 24, and a lower portion at the bottom facing the bottom portion 15b of the recess 15. It has a narrow width surrounded by 17. Moreover, the four corner parts of the side wall part 23 which surrounds the four side edges of the article storage part 2 of the storage tray 1 are the curved recesses 27.

Unlike the storage tray 1 of the said each form, in the storage tray 1 of this form, although the recessed surface part 16c, 16c which indented inward was not formed in the both sides of the thin pillar part 16, When the stored storage trays 1 are piled up and down, as shown in FIG. 22, the upper storage tray 1 is fitted inside the lower storage tray 1, and the lower storage tray 1 The lower surface of the stack portion 25 of the upper storage tray 1 is engaged with the upper surface of the stack portion 25 of the upper stack portion 25 so as to secure a constant distance between the upper and lower storage trays 1 and 1 without shifting the position. Can be stacked stably.

In addition, the illustrated storage tray shows an example of embodiment of this invention, The storage tray of this invention is not limited to this, It can be comprised in a suitable form according to the kind, size, shape, etc. of the goods to receive. Any combination of the above-described embodiments and modifications is also useful as an embodiment of the present invention. The new embodiment generated by the combination combines the effects of each of the embodiments and the modified examples to be combined. INDUSTRIAL APPLICABILITY The present invention can be applied to trays for storing various parts such as various parts such as electronic parts, various articles, tools, daily necessities and the like.

DESCRIPTION OF SYMBOLS 1 Storage tray, 2 goods storage part, 3 bottom surface, 4, 5 rib, 6 storage area, 7, 8 recessed part, 9 side frame part, 10 inner wall part, 11 flat part, 12: outer wall portion, 13: stack portion, 14: 4 corner stack portion, 15: recessed portion, 16: thin column portion, 16c: concave surface portion, 17: tapered portion, 18: concave rib, 19, 20, 21, 22 : Stack portion, 23: side wall portion, 24: flat portion, 25: stack portion, 26: opening portion, 27: curved concave portion

Claims (7)

A storage tray comprising a vacuum molded body made of a thin synthetic resin sheet surrounded by a flat portion protruding outwardly from the storage portion and extending downwardly obliquely downward from the flat portion and surrounded by a side frame portion formed of an outer wall portion. A storage tray configured to support a stack of upper trays overlapping in the same direction in a plurality of stacks formed in the side frame portion so as to support the lower trays and stack them vertically.
Each of the stack portions has a thin pillar portion standing up from the bottom portion of the recess portion and extending to the flat portion in the recess portion formed on the outer surface of the side frame portion. A storage tray, each having a configuration formed and formed. The method of claim 1,
The lower tray side of the said thin column part and the bottom part of the said recessed part respectively lead to a taper part, Comprising: The storage tray which has a structure formed by forming concave surface parts in the both sides of the said thin column part above both taper parts, respectively. The method according to claim 1 or 2,
A storage tray, characterized in that a plurality of thin column portions formed in the recessed portion at appropriate intervals. The method according to any one of claims 1 to 3,
A recess is formed in the inner circumferential surface of the article storage portion, and in the recess, a thin pillar portion leading to the flat portion, a tapered portion formed between both side surfaces of the lower pillar portion and the bottom of the recess portion, The storage tray which has a structure which provided the stack part provided with the inwardly recessed concave part formed above the said both taper part as the lower both sides of the column part. In the dish-shaped storage tray which consists of the vacuum molded object of the synthetic resin thin plate which the circumference | surrounding of an article accommodating part is enclosed by the side frame part which consists of a flat part and an outer wall part, and the several peripheral part was formed in the outer peripheral surface of the said side frame part,
Each of the stack portions is formed in a recess formed on an outer circumferential surface of the side frame portion, and is formed between the thin pillar portions formed in the recess portion following the flat portion, between the lower side surfaces of the thin pillar portion and the bottom portion of the recess portion. And a tapered portion and a concave surface portion formed inwardly formed above both of the tapered portions as lower sides of the lower pillar portion. In the dish-shaped storage tray which consists of the vacuum molded object of the synthetic resin thin plate which the periphery of the article accommodating part is enclosed by the side frame part which consists of a flat part and an outer wall part, and the several peripheral part was formed in the inner peripheral surface of the said article accommodating part,
Each said stack part is formed in the inner peripheral surface of the said article accommodating part, The thin pillar part standing up from the bottom surface of the said article accommodating part, The taper part formed between the both sides of the upper part of the said thin column part, and the said flat part, And a concave surface portion protruding in a direction in which the inner surface spacing of the thin column portion is narrowed, formed on both sides of the upper portion of the thin column portion below the tapered portion. A dish-shaped storage tray formed of a vacuum molded body of a thin sheet of synthetic resin formed by enclosing a periphery of an article storage unit in a sidewall portion standing up from the bottom surface and forming a flat portion protruding outwardly on an upper end of the sidewall portion. In the storage tray configured to stack the upper tray overlapped in the same direction in the plurality of formed stack portion in the same direction so that the lower tray is stacked up and down,
Each of the stack portions includes a plurality of thin pillars standing up from the bottom of the recess portion and extending from the bottom portion of the side wall portion to the flat portion at appropriate intervals. And a tapered portion formed between both side surfaces and a bottom portion of the recess.

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