JP6047649B1 - Bacteria bed cultivation bag - Google Patents

Abstract

To provide a bag for cultivating a fungus bed capable of easily peeling off a bag body. A fungus bed cultivation bag (1) includes a bag body (10) made of a plastic film having an upper end opened and a lower end closed, a vent hole (20) formed in the bag body, and a vent hole. And a filter (30) for blocking the invasion of germs and allowing the air to pass therethrough. The bag body and the filter are welded by a welded portion (31) surrounding the outer periphery of the vent hole, and a pair of cuts (22) are provided between the opening edge of the vent hole and the welded portion. In a region surrounded by the welded portion, an adhesive fixing portion (34) for bonding and fixing the bag body and the filter is provided. [Selection] Figure 2

Description

  The present invention relates to a fungus bed cultivation bag used for fungus bed cultivation such as moss.

  In recent years, cultivation of fungi such as moss using a bag for cultivation of fungus beds made of plastic film has been carried out indoors with air conditioning equipment. Bacterial bed cultivation is performed by filling a medium for cultivation of fungus bed with a medium such as sawdust and culturing moss, and then removing the medium from the bag for cultivation of cultivated bed to generate and grow moss. When taking out the culture medium from the fungus bed cultivation bag, it is necessary to cut the bag using a blade, which is troublesome and may damage the moss.

  Then, the bag for microbial bed cultivation which can peel off a bag without using a blade is proposed. For example, Japanese Patent Application Laid-Open No. 2008-35807 (Patent Document 1) discloses a technique for concentrating a peeling stress generated when a filter is peeled downward from a bag body at a welded portion between the bag body and the filter. It is disclosed that a stress concentration portion is provided. The peeling stress concentration part is provided at the corner part of the welded part and the intersection part of the welded part, and when the filter is peeled off, the peeling stress concentrated part is cut and the fungus bed cultivation bag is peeled off. Is disclosed.

  On the other hand, Japanese Patent Laid-Open No. 5-30853 (Patent Document 2) discloses that a tear start portion is provided around a hole formed in a film. It is disclosed that the tear start portion is provided in a direction toward the bag bottom or obliquely toward the bag bottom, and the tear is induced toward the bag bottom.

JP 2008-35807 A (Patent No. 4217256) Japanese Patent Laid-Open No. 5-30853

  When the welding force between the bag body and the filter is weaker than the peeling force of the filter, when the filter is peeled off from the bag body, only the filter is removed from the bag body. Peeled off, and the fungus bed cultivation bag could not be torn. In such a case, the operator has to cut the bag with scissors, and there is a possibility that the scissors may be damaged.

  In addition, the fungus bed cultivation bag shown in Patent Document 2 above requires that the filter is first peeled off and a finger inserted into the hole and pulled toward the bottom of the bag in order to break the bag. It was a hassle.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a fungus bed cultivation bag capable of easily peeling off the bag body.

  For this purpose, the fungus bed cultivation bag according to one aspect of the present invention has a bag body made of a plastic film having an upper end opened and a lower end closed, an air hole formed in the bag body, and the air hole is blocked. The bag body and the filter are welded by a welded portion surrounding the outer periphery of the vent hole, and between the opening edge of the vent hole and the welded portion. A pair of cuts are provided, and an adhesive fixing part for bonding and fixing the bag body and the filter is provided in a region surrounded by the pair of cuts and the welded part.

  Preferably, the vent hole is located on the upper end side of the bag body, and the pair of cuts extend from the opening edge toward the lower end direction.

  Preferably, the cut extends to the weld.

  Preferably, the adhesive fixing portion extends from the opening edge of the vent hole to the welded portion.

  Preferably, the welded portion and the vent hole have a circular shape.

  ADVANTAGE OF THE INVENTION According to this invention, the bag for microbial bed cultivation which can peel off a bag body easily can be provided.

It is a front view of the bag in the embodiment of the present invention. It is a front view of the bag for microbial bed cultivation concerning the embodiment of the present invention. It is sectional drawing seen along the III-III line of FIG. It is a schematic diagram which shows the state which has peeled off the filter. It is a schematic diagram which shows the state which has further peeled off the filter.

  Embodiments of the present invention will be described in detail with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals and description thereof will not be repeated.

  With reference to FIG. 1 and FIG. 2, the bag 1 for fungus bed cultivation which concerns on this Embodiment is demonstrated. FIG. 1 is a front view of a bag 10 according to an embodiment of the present invention. FIG. 2 is a front view of the fungus bed cultivation bag 1 according to the embodiment of the present invention. In the present embodiment, the direction indicated by the arrow A1 in FIGS. 1 and 2 is referred to as the vertical direction, and the width direction indicated by the arrow A2 is referred to as the left-right direction.

  The fungus bed cultivation bag 1 includes a bag body 10 made of a plastic film having an upper end opened and a lower end closed, a vent hole 20 formed in the bag body 10, and a filter 30 for closing the vent hole 20. The bag body 10 and the filter 30 are welded by a welded portion 31 that surrounds the outer periphery of the vent hole 20.

  For example, a plastic film such as polyethylene, polypropylene, or polyester is used for the bag body 10. The bag body 10 includes, for example, an opening portion 11 whose upper end is open, a closing portion 12 whose lower end is welded and closed, and a gusset folding portion 13 whose both lateral ends are gusset folded.

  On the upper end side of the bag body 10, that is, on the opening 11 side, a vent hole 20 is provided in the center portion in the width direction of the bag body 10. The vent hole 20 is formed in a circular shape, for example. The vent hole 20 may have an arbitrary shape such as a polygonal shape.

  A pair of cuts 22 are provided at the opening edge 21 of the vent hole 20. The notch 22 extends toward the lower end, and is provided, for example, facing obliquely downward. The notch 22 extends to the welded portion 31. Specifically, the pair of cuts 22 are, for example, I-shaped notches. Note that the cuts 22 may be provided with dense V-shaped cutouts and minute scratches.

  As described above, the filter 30 is welded to the bag body 10 by the welded portion 31 that surrounds the outer periphery of the vent hole 20. The filter 30 is a porous sheet in which a plurality of holes are formed, which prevents invasion of germs and allows air to pass through. The filter 30 is formed in a rectangular shape. In addition, the filter 30 may be formed with various paper materials, a nonwoven fabric, or a film, for example. The filter 30 may have an arbitrary shape such as a circular shape or a polygonal shape.

  The welding part 31 welds the bag body 10 and the filter 30 as mentioned above. The welded portion 31 is formed, for example, in a circular shape (ring shape), and may be bonded by heat pressing, laser, or the like, or may be bonded by an adhesive or the like. The region surrounded by the welded portion 31 is formed larger than the vent hole 20 and smaller than the outer edge of the filter 30. The separation portion 32 between the outer edge of the filter 30 and the welded portion 31 is not welded to the bag body 10 and is separated from the bag body 10. The separation part 32 becomes a part to be gripped with a finger when the bag body 10 is peeled off. Note that the welded portion 31 may have an arbitrary shape such as a polygonal shape.

  A first section 23 and a second section 24 are provided in the region of the bag body 10 surrounded by the opening edge 21 of the vent hole 20 and the welded portion 31. The first section 23 is an area located on the lower side of the vent hole 20 and surrounded by the pair of cuts 22. The second section 24 has a substantially inverted U-shape when viewed from the front, and is located on both ends of the vent hole 20 in the width direction and on the upper side.

  The first section 23 is provided with an adhesive fixing portion 34 that adhesively fixes the bag body 10 and the filter 30. The adhesive fixing portion 34 extends from the opening edge 21 of the vent hole 20 to the welded portion 31 and may be provided on the substantially entire surface of the first section 23. The adhesive fixing part 34 may be welded by a method similar to or different from that of the welded part 31, and may be adhered by heat pressing, laser, or the like, or may be adhered by an adhesive or the like.

  Next, with reference to FIGS. 3-5, the peeling method of the bag 1 for fungus bed cultivation of this Embodiment is demonstrated.

  3 is a cross-sectional view taken along line III-III in FIG. 2, and FIG. 3 (A) is a view showing a state in which the filter 30 is welded to the bag body 10, and FIG. ) Is a diagram showing a state in which the filter 30 is peeled off from the bag body 10. 4 is a schematic diagram showing a state where the filter 30 is peeled off, and FIG. 5 is a schematic diagram showing a state where the filter 30 is further peeled off from the state shown in FIG.

  In order to peel off the filter 30 from the fungus bed cultivation bag 1, first, the separation part 32 on the outer peripheral edge of the filter 30 is grasped by hand and pulled downward. By this pulling down, as shown in FIGS. 3B and 4, the adhesive fixing portion 34 (first section 23) provided between the pair of cuts 22 together with the filter 30 rises. When the filter 30 is further pulled down, the adhesive fixing portion 34 connected and fixed to the filter 30 is pulled downward together with the filter 30, and the bag body 10 starts from the lower ends of the pair of cuts 22 as shown in FIG. 5. It tears down. Thereby, the operator can tear the bag body 10 easily only with the force which pulls the filter 30 down. Furthermore, since the operator can tear the bag body without using the blade, there is no possibility of damaging the moss.

  As described above, the adhesive fixing portion 34 is provided in the first section 23 surrounded by the pair of cuts 22 and the welded portion 31. For this reason, when the filter 30 is peeled off, as shown in FIG. 3B and FIG. 4, the first section 23 of the filter 30 is also caused, so that only the filter 30 is not peeled off from the bag body 10. .

  In the above embodiment, the pair of cuts 22 extend toward the lower end, and the direction in which the filter 30 is peeled is downward, but this is not restrictive. The pair of cuts 22 may extend in a direction other than the lower end, for example, in a direction extending in the width direction. In this case, the direction in which the filter 30 is peeled off may be in the width direction.

  Moreover, in the said embodiment, the adhesion fixing | fixed part 34 demonstrated as being provided in the substantially whole surface of the 1st division 23. As shown in FIG. However, the adhesive fixing part 34 only needs to be provided between the pair of cuts 22. For example, the adhesive fixing part 34 is provided in a spot shape, or a plurality of straight lines extending from the opening edge 21 of the vent hole 20 toward the welded part 31. May be provided. Further, the adhesive fixing portion 34 may be provided so as to extend beyond the welded portion 31.

  Although the embodiments of the present invention have been described with reference to the drawings, the present invention is not limited to the illustrated embodiments. Various modifications and variations can be made to the illustrated embodiment within the same range or equivalent range as the present invention.

  DESCRIPTION OF SYMBOLS 1 Bacteria bed cultivation bag, 10 bag body, 11 opening part, 12 closing part, 13 gusset folding part, 20 ventilation hole, 21 opening edge, 22 cutting, 23 1st division, 24 2nd division, 30 filter, 31 welding Part, 32 separation part, 34 adhesive fixing part.

Claims (5)

A bag body made of a plastic film having an upper end opened and a lower end closed; a vent hole formed in the bag body; and a filter that closes the vent hole to prevent invasion of bacteria and allow air to pass through,
The bag body and the filter are welded by a welded portion surrounding an outer periphery of the vent hole, and a pair of cuts are provided between an opening edge of the vent hole and the welded portion,
The cultivated bed cultivation bag, wherein an adhesive fixing portion for bonding and fixing the bag body and the filter is provided in a region surrounded by the pair of cuts, the welded portion, and the opening edge .   The said vent hole is located in the upper end side of the said bag body, A pair of said notch | incision is a bag for fungus bed cultivation of Claim 1 extended toward the lower end direction from the said opening edge.   The bag for cultivation of fungi according to claim 1 or 2, wherein the cut extends to the weld portion.   The said adhesion fixing | fixed part is a bag for fungus bed cultivation in any one of Claims 1-3 extended from the said opening edge of the said air vent to the said welding part.   The bag for cultivation of fungi according to any one of claims 1 to 4, wherein the welded portion and the vent hole have a circular shape.

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