JPH0586883U - Packaging tray - Google Patents

Abstract

(57) [Summary] [Purpose] The objective is to improve the buffer function at the bottom of the tray for packaging fruits and the like. In a tray A made of a sheet body having a concave portion 2, a peripheral wall extending from an upper middle portion to a bottom portion of the concave portion 2 is formed in a bellows shape 3, so that the bellows shape is formed when an object is stored in the concave portion 2. The part is deformed into a convex arc shape, the part has a cushioning function, the shock received by the bottom of the tray is absorbed, and the shock received by the object is reduced as much as possible.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a packaging tray used for packaging fruits such as peaches and pears and other spherical objects.

[0002]

[Prior Art]

 Conventionally, a packaging tray in which a large number of recesses are formed by integrally molding a synthetic resin sheet is known (for example, Japanese Utility Model Publication No. 30310). In this technique, ribs are radially formed on the peripheral wall of the recess from the upper end to the bottom, and the action of the ribs improves the cushioning property, and an air layer is obtained between the peripheral wall and the stored items (fruits). It was something to try.

[0003]

[Problems to be solved by devising]

 In this type of packaging tray, the cushioning function of the bottom portion is most important, but in the above-mentioned conventional technique, the cushioning function of the bottom portion depends on the rib. Since the ribs are radial, it is difficult to form the ribs in the center of the bottom where the cushioning function is most required, and the substantial ribs hardly contribute to cushioning the bottom. Further, the radial ribs prevent the deformation (crushing) of the lower part of the recess in the height direction.

[0004]

[Means for Solving the Problems]

 The packaging tray of the present invention is a tray in which a recess having an arcuate cross section is formed by molding a sheet body, wherein the recess has a bellows-like peripheral wall extending from the upper and lower intermediate portions to the bottom, and the bellows-like peripheral wall is normally formed. It is configured to extend and hold a recess having a concave arc shape in cross section. Further, the invention of claim 2 further improves the cushioning function by forming a cushioning groove in the bottom portion, and the invention of claim 3 has a rib in the vertical direction extending from the upper end to the bellows-like peripheral wall on the peripheral wall of the recess. A plurality of them are formed at equal intervals, and the amount of deformation of the recess is regulated. The bellows-shaped peripheral wall preferably has a stepwise cross-section, and the sheet body is preferably made of foamed synthetic resin.

[0005]

[Action]

 In this invention, when fruits or the like are stored in the concave portion, the bellows-shaped peripheral wall is deformed by its weight, and the lower portion of the concave portion has a convex arc shape in section. This convex arcuate portion has a large cushioning property, and since the receipt is held in the convex arcuate portion, the cushioning property of the packaging tray is improved, and the above-mentioned conventional problems are solved. In addition, the bellows-shaped peripheral wall also has the function of stopping the rotation of the stored items.

[0006]

【Example】

 A foaming synthetic resin sheet 1 is molded to form a packaging tray A having a large number of recesses 2. The concave portion 2 has a concave arc-shaped cross section, and has a size capable of stably holding fruits such as peaches and pears and other spherical objects. The peripheral wall of the portion extending from the upper and lower central portions of the recess 2 to the bottom portion is a bellows-shaped peripheral wall 3 having a stepped cross section having three annular step portions 3a, 3b and 3c, and a buffer groove 4 is provided at the center of the bottom portion. It has a cross shape. A plurality of convex ribs 5 are provided at equal intervals in the vertical direction from the upper end of the recess 2 to the upper end of the bellows-shaped peripheral wall 3. Reference numeral 6 in the drawing is a partition wall for preventing contact between objects housed in the adjacent recesses 2.

The tray A of this embodiment mainly stores fruits in the recess 2. The size of the fruit B is such that the lower part of the fruit B is locked to the upper step part 3a. When the fruit B having such a size and shape is housed in the concave portion 2, the lower portion of the fruit B is locked by the step portion 3a, and the step portion 3a is pushed downward. Then, the steps 3b and 3c are sequentially pushed down by the weight of the fruit B, and the bellows-shaped peripheral wall 3 is deformed into a convex arc shape. A large void 8 is formed between the bellows-shaped peripheral wall 3 deformed in a convex arc shape and the base surface 7, and the void 8 functions as a cushion, so that the bellows-shaped peripheral wall 3 having a convex arc shape buffers the fruit B. To support. Therefore, the impact such as vibration generated on the base surface 7 during the transfer is absorbed by the gap 8 and the shock transmitted to the fruit B is reduced as much as possible. Further, since the bellows-shaped peripheral wall 3 having the convex arc shape faces the depression B ₁ at the bottom of the fruit, the rotation of the fruit is prevented.

In the above-described embodiment, since the buffer groove 4 is provided at the bottom of the recess 2, the buffer such as fruits is smaller than the recess 2 and the bellows-shaped wall 3 is not deformed. Since the use groove 4 acts as a cushion, the impact is not directly transmitted to the stored items.

In addition, in the above-described embodiment, since the vertical ribs 5 are provided above the bellows-shaped peripheral wall 3, the contents above the bellows-shaped wall 3 are not deformed regardless of the size of the stored items. Since the periphery of the container is held, the container is not held incompletely by the peripheral wall due to the excessive deformation of the recess, and the container is held in a stable state.

In the above embodiment, the bellows-shaped peripheral wall 3 is constituted by a plurality of annular steps, but the steps may be formed in a spiral shape. In addition to the stepwise cross section, the bellows-shaped peripheral wall can be formed by changing the thickness of the peripheral wall.

[0011]

[Effect of the device]

 According to this invention, the bellows-shaped peripheral wall is formed in the lower part of the concave portion, and the bellows-shaped portion is deformed into the convex arc shape when the contents are stored in the concave portion. A gap is formed between the base and the base. Since this void functions as a cushion, the vibrations and shocks of the base are not directly transmitted to the stored items (mainly fruits) supported by the bellows-shaped portion deformed into a convex arc shape. Since the void is sufficiently large, vibration and impact are reduced as much as possible by the void, and a large cushioning property is obtained. Further, when the fruit is stored, since the concave portion at the bottom of the fruit is stably supported by the bellows-shaped portion which is deformed in the convex arc shape, there is no possibility that the fruit will rotate.

[Brief description of drawings]

FIG. 1 is a partial sectional view of an embodiment of the present invention.

FIG. 2 is a perspective view of the same.

FIG. 3 is a partial end view of the same usage state.

[Explanation of symbols]

 1 Seat 2 Recess 3 Bellows-like peripheral wall 3a Step 4 Buffer groove 5 Rib

Claims (5)

[Scope of utility model registration request] 1. A tray in which a recess having an arcuate cross section is formed by molding a sheet body, wherein the recess has a bellows-like peripheral wall extending from an upper and lower middle part to a bottom, and the bellows-like peripheral wall extends in a normal state and has a cross-section concave section. A packaging tray configured to hold an arcuate recess 2. The packaging tray according to claim 1, wherein a buffer groove is formed on the bottom. 3. The packaging tray according to claim 1, wherein a plurality of vertical ribs extending from the upper end to the bellows-shaped peripheral wall are formed on the peripheral wall of the recess at equal intervals. 4. The bellows-shaped peripheral wall is formed in a stepwise cross-section.
The packaging tray according to any one of claims 1 to 3. 5. The packaging tray according to claim 1, wherein the sheet body is a foamed synthetic resin.