JP4149875B2 - Food steaming container - Google Patents

Description

  The present invention relates to a food steaming container such as a thin plastic tray used in a steaming process of raw food such as shumai, gyoza and buns, and steamed food such as refrigerated frozen food.

  A conventional food steaming container such as a thin plastic tray formed from a thin plastic sheet has a large number of holes through which steam from below passes, as seen in the “steamed tray” of Patent Document 1, for example. Met. Since the drilling operation can be performed simultaneously with the press forming of containers such as trays, it will not lead to an increase in the number of processes. It was difficult, and the risk of contamination by foreign matter was high, and even if the inspection of the steaming container was conducted strictly, it was still not complete.

JP-A-2001-206332 (Claim 1, FIG. 2)

  Therefore, for steamed food containers such as thin plastic trays, steam steaming has a good shape and structure that can be carried out without the addition of special processes by means of replacing the steam passage holes found in conventional perforated trays. It is intended to obtain a food steaming container that achieves the above and does not contain foreign matter such as a residue from the perforated portion.

  The above-mentioned problem solving means of the present invention is a food steaming container made of a thin plastic sheet, and a food steaming container having a plurality of protrusions and a plurality of slits on the bottom surface of the container. The plurality of protrusions provided on the bottom surface of the container are used to secure a steam passage between the bottom surface of the container and the porous shelf inside the cooking apparatus, and the plurality of slits are deformed by the weight of the steam placed on the protrusion. The slit is opened so that the steam passage is formed.

  In the case of a tray having a plurality of steamed container receiving portions divided into a plurality of partition walls so that a large number of small steamed products such as shumai can be stored, A slit is provided around the protrusion and the periphery of the protrusion, and the slit is also deformed by the load deformation of the protrusion.

  The plurality of protrusions provided on the bottom surface of the steaming container are formed as upward protrusions or downward protrusions from the bottom sheet when the container is molded. In either case of upward or downward, the steam is placed on the protrusions so that the steam is deformed by the weight, so that the slit is opened and the steam passage is formed.

  As a specific shape example, it is possible to open and close by steam pressure or steam weight deformation as a semi-circular or semi-polygonal tongue-shaped slit surrounding the upward or downward projection provided on the bottom surface. A piece. Here, if the upward protrusion is provided on the inner side of the movable piece and the downward protrusion is provided on the outer side of the movable piece, the deformation is large and convenient.

  Furthermore, the slit on the bottom surface may be a simple straight cut line or a deformed slit that opens and closes by the weight of the steamed open-cut steam as an H-shaped cut line. The food steaming container is provided with a steam passing means that does not cause a residue due to opening.

  Raw foods such as Shumai, Gyoza, Shantou, and steamed foods such as refrigerated frozen foods are becoming increasingly mass-produced and consumed, and food steaming containers such as thin plastic trays used in the steaming process of the food are also increasingly consumed in large quantities. However, along with this, the time for checking the contamination of foreign matter in the food steaming container, the rationalization of labor reduction has become an urgent solution, but the food steaming container of the present invention has no perforation missing, Product inspection can be performed in a very short time.

  In particular, food steaming containers such as thin plastic trays formed from conventional thin plastic sheets have adopted holes as a means for passing steam, so that many scraps generated by drilling are extremely thin pieces. It is difficult to eliminate the entire amount due to static electricity adhering to the tray, and there is a high risk of contamination by foreign matter due to this omission, and even though strict inspection of the steaming container was not complete, it was not complete. Very significant.

  Hereinafter, the food steaming container of the present invention will be specifically described with reference to the drawings. 1 is a plan view showing an example of a food tray for a plastic tray, FIG. 2 is a side view thereof, and FIG. 3 is a cross-sectional view taken along line AA in FIG. 4 is an enlarged plan view taken along line A-A 'in FIG. 1, FIG. 5 is a cross-sectional view taken along line BB in FIG. 4, and FIG. 6 is a cross-sectional view taken along line CC in FIG. FIG. 7 is a cross-sectional view showing a state where steam is inserted into the small chamber of the container of FIG. 6 and the bottom surface is deformed to form a steam passage. FIG. 8 is a plan view showing another arrangement composed of a combination of a tongue-like movable piece and an upward projection, FIG. 9 is a sectional view taken along the line DD in FIG. 8, and FIG. 10 shows steamed food placed on FIG. FIG. 10 is a cross-sectional view corresponding to FIG. 9 showing a state where a slit is deformed and a steam passage hole is formed.

  As is apparent from the overall views of FIGS. 1 and 2, this example is a food steaming container 1 made of a thin plastic sheet molded product, and has three rows of partition walls so that a large number of small steamed foods such as Shumai can be accommodated. It is a tray having 24 steamed container portions 4 divided by 2 and 5 rows of partition walls 3. As shown in FIG. 3, the partition walls 2 and 3 are both formed so that the center of the section is low in an arc shape to facilitate the passage of steam. However, the partition wall in the third row, which is the middle of the five horizontal rows, is connected only at the upper edge to form the partition wall 5, and the tray can be cut into two parts at this portion.

  A plurality of protrusions and a plurality of slits 6 are provided on the bottom surface of the steaming container receiving portion 4 of the tray. The bottom surface 7 of the container is a bottom surface 7 left in a wide cross shape crossing the diagonal line of the substantially square steaming container receiving portion 4 in this example, and a total of 5 one in the center and four in the diagonal direction are provided inside the bottom surface. Each of the upward projections 8 and the four downward projections 10 projecting from the bottom surface 7 downward from the stepped surfaces 9 left in the triangular shape at the four locations outward from the bottom surface give a rice-shaped design.

  The details are shown in the enlarged views of FIGS. 4 to 7. As shown in FIG. 7, the plurality of downward projections 10 are formed inside the steaming apparatus by putting steamed material 11 such as shumai in the steamed food container 4. In order to secure the steam passage 13 between the container bottom surface 7 and the porous shelf board 12 when placed on the porous shelf board 12, the plurality of slits 6 are provided for the steamed material 11 placed on the upward projection 8. It arrange | positions so that the effect | action which the slit 6 may open and the vapor | steam channel | path 13 may be formed by the deformation | transformation by a weight.

  As a specific shape example, as already shown in the drawing, the slit 6 having a substantially semicircular tongue-like shape surrounding the upward projection 8 provided on the bottom surface 7 is opened and closed by vapor pressure or by the self-weight deformation of the steamed material 11. A movable piece. Here, if the upward protrusion 8 is provided inside the slit 6 of the movable piece and the downward protrusion 10 is provided outside the movable piece, the deformation of the slit 6 is greatly opened as shown in FIG.

  Another example shown in FIG. 8 to FIG. 10 is a combination of these upward projections 8 on the inner side of the slit 6 of the movable piece and a combination of the downward projections 10 on the outer side of the movable piece. It can be easily understood from FIG. 10 that the slits 6 and 6 are deformed downward and open greatly.

  In any case, the plurality of protrusions provided on the bottom surface 7 of the steaming container 1 are formed as upward protrusions 8 or downward protrusions 10 from the bottom sheet when the steaming container 1 is molded. Whether it is upward or downward, the steam 6 placed on the protrusion 11 is deformed by the weight and is arranged so that the slit 6 is opened and the steam passage 13 is formed.

  Further, although not shown in the figure, the slit 6 on the bottom surface 7 may be a simple straight cut line, or may be an open / closed deformed slit that opens in the form of a double door due to the weight of the steamed material 11 as an H-shaped cut line. In short, in short, the food steaming container 1 is provided with a steam passage means that does not cause a scum due to drilling.

It is a top view which shows an example of the food steaming container of a plastic tray. It is a side view which shows an example of the food steaming container of a plastic tray. It is AA sectional drawing in FIG. FIG. 2 is an enlarged plan view of a portion A-A ′ in FIG. 1. It is BB sectional drawing in FIG. It is CC sectional drawing in FIG. FIG. 7 is a cross-sectional view showing a state in which steam is inserted into the small chamber of the container of FIG. 6 and the bottom surface is deformed to form a steam passage. It is a top view which shows the other arrangement | positioning which consists of a combination of a tongue-like movable piece and an upward protrusion. It is DD sectional drawing in FIG. FIG. 9 is a cross-sectional view corresponding to FIG. 9, showing a state in which steam is placed on FIG. 8 and the slit is deformed to form a steam passage hole.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Food steaming container 2 Partition wall 3 Partition wall 4 Steaming thing accommodating part 5 Dividing partition wall 6 Slit 7 Bottom face 8 Upward protrusion 9 Stepped surface
10 downward projection
11 Steamed food
12 perforated shelves
13 Steam passage

Claims (3)

A food steaming container in which a plurality of protrusions and a plurality of slits are provided on the bottom surface of a container made of a thin plastic sheet molded product, wherein the slit on the bottom surface is a deformed slit that opens and closes by the weight of the steamed food. Steaming container . 2. The food steaming container according to claim 1, wherein the deformed slit that opens and closes due to the weight of the steamed material is a substantially tongue-like movable piece, and has an upward projection on the inside of the movable piece and a downward projection on the outside of the movable piece . The food steaming container according to claim 1 or 2, wherein the container is a tray composed of a plurality of steaming container compartments divided into a plurality of partitions.

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