KR20240028275A - Cylindrical cover and manufacturing method of cylindrical cover - Google Patents

Abstract

The present invention relates to a cylindrical cover that has easy-to-handle strength, is easy to remove when stacking cylindrical covers, and can prevent shape deformation.
The present invention is a cylindrical cover (1) mounted on a mushroom cultivation container, and includes a cylindrical side wall portion (2) and an annular elastic ring (3) protruding outward from the side wall portion (2). The elastic ring 3 is installed on at least one of the upper and lower sides of the side wall portion 2. By this elastic ring 3, elastic force against deformation in the radial direction (R) is given to the cylindrical cover 1, so the strength of the cylindrical cover 1 is improved, handling is improved, and the shape of the cover 1 is improved. Deformation is prevented.

Description

Cylindrical cover and manufacturing method of cylindrical cover {CYLINDRICAL COVER AND MANUFACTURING METHOD OF CYLINDRICAL COVER}

The present invention relates to a cylindrical cover mounted on a mushroom cultivation container.

Conventionally, when cultivating mushroom fungi using a cultivation container, a cylindrical cover is attached to the bottle opening of the cultivation container in order to guide the mushroom fruiting body to grow upward in an upright state. Once mushroom cultivation is complete, the cylindrical cover is removed from the cultivation container, washed, and stored for repeated use. The shape of the cylindrical cover has a reduced radius from the top to the bottom and forms an inverted truncated cone shape with a hollow interior, so a plurality of cylindrical covers are stacked by inserting the lower part of another cylindrical cover from the upper part of the cylindrical cover. By being in one state, it is possible to reduce the space required for storage. Therefore, in order to use a cylindrical cover, it is necessary to remove one of the plurality of stacked cylindrical covers, but the cylindrical cover itself is soft, so it is difficult to control the force to hold the cylindrical cover, and the stacked cylindrical covers adhere to each other, making it difficult to remove. There is a need for a cylindrical cover that is easy to remove.

In the patent document, there is a cover for mushroom cultivation that is mounted on a cultivation bottle for mushroom cultivation and is used to grow mushrooms in an aligned state, wherein two opposing ends of a sheet body formed in a strip shape by a resin material are overlapped and the ends are welded. A cover for mushroom cultivation has been proposed, which consists of a cylindrical body and has protrusions protruding from at least one of the outer and inner sides of the normal body.

Japanese Patent Laid-open Publication No. 2011-103776

However, since the strength of the mushroom cultivation cover of Patent Document 1 has not been improved, it is still difficult to hold and there is a problem in operability when removing it. Currently, in most cases, the operation of handling a normal cover is performed manually by an operator, but in order to realize automation by a robot or the like, it is desirable to make it easy to hold. Additionally, when the cylindrical cover is soft (low strength), there is also the problem of shape deformation due to repeated use.

The present invention was made in consideration of the problems described above, and its purpose is to provide a cylindrical cover that is easy to handle, has strength, is easy to remove when cylindrical covers are stacked, and can prevent deformation of shape.

The present invention is a cylindrical cover made of resin mounted on a mushroom cultivation container, comprising: a cylindrical side wall portion; and an annular elastic ring protruding toward the outside of the side wall, wherein the elastic ring is installed on at least one of the top and bottom of the side wall.

According to this configuration, an elastic force against radial deformation is provided to the cylindrical cover by the elastic ring provided on at least one of the upper and lower sides of the side wall portion, making it easier to grip the cylindrical cover. This is because, compared to a cylindrical cover without an elastic ring, the elastic force is increased and the amount of radial deformation can be reduced. When an elastic ring is provided on the top of the cylindrical cover, the worker's fingers or a robot hand, etc. can be hooked on the elastic ring, making it easy to remove one cylindrical cover from a plurality of stacked cylindrical covers. When an elastic ring is installed at the bottom of the cylindrical cover, the elastic ring prevents the stacked cylindrical covers from adhering to each other, making it easy to remove one cylindrical cover from a plurality of stacked cylindrical covers. When elastic rings are installed at both the upper and lower ends of the cylindrical cover, both the effect of installing the elastic ring at the top and the bottom of the cylindrical cover can be achieved, making it possible to form a single cylindrical cover from a plurality of stacked cylindrical covers. The operation of stocking the cylindrical cover becomes easier. Additionally, since the strength of the cylindrical cover is improved by the elastic ring, deformation of the cylindrical cover can be prevented. It is preferable that the elastic ring is a fused portion integrated with the side wall portion. The material of the cylindrical cover is not limited as long as it can provide radial elasticity to the cylindrical cover by providing an elastic ring, for example, polypropylene (PP), high-density polyethylene (HDPE), or low-density polyethylene (LDPE). ), linear low density polyethylene (LLDPE), etc. “Normal” refers to a substantially cylindrical shape, which may include, for example, an oval or oblong shape at one or both ends, or a tapered shape with different sizes at each end.

In the present invention, it is preferable that irregularities are provided on at least one of the outer and inner surfaces of the side wall portion. According to this configuration, it is possible to further prevent the cylindrical covers stacked by unevenness from adhering to each other. Additionally, since the moisture performance of the cylindrical cover can be improved by the unevenness, drying treatment after washing can be performed efficiently.

In the present invention, it is preferable that the irregularities are continuously provided in a specific pattern. According to this configuration, the moisture performance of the cylindrical cover can be further improved. Specific patterns include grid shapes, zig zag shapes, and similar patterns.

In the present invention, the ratio of the thickness of the elastic ring to the thickness of the side wall portion based on the radial direction is preferably 2 to 9, more preferably 3 to 7, and especially preferably 4 to 6. According to this configuration, sufficient strength can be achieved to improve handling and prevent deformation of shape.

In the present invention, the thickness of the elastic ring in the radial direction is preferably 0.9 mm to 2 mm, more preferably 1.2 mm to 1.7 mm, and particularly preferably 1.2 mm to 1.4 mm. According to this configuration, sufficient strength can be provided to the cylindrical cover. When an elastic ring is provided at the top of the cylindrical cover in the above-mentioned thickness range, a thickness sufficient to hook the operator's fingers, robot hand, etc. on the elastic ring is obtained. In the case where an elastic ring is installed at the bottom of the cylindrical cover in the above thickness range, it is possible to prevent the stacked cylindrical covers from adhering to each other and suppress the volume height by stacking.

In the present invention, the thickness of the elastic ring in the axial direction is preferably 0.7 mm to 1.6 mm, more preferably 0.9 mm to 1.4 mm, and especially preferably 1.2 mm to 1.4 mm. According to this configuration, sufficient strength to improve handling and prevent deformation of shape can be achieved.

In the present invention, the thickness of the side wall portion in the radial direction is preferably 0.24 mm to 0.35 mm, more preferably 0.27 mm to 0.33 mm, and particularly preferably 0.29 mm to 0.31 mm. According to this configuration, it is possible to achieve both strength of the side wall portion and production cost.

The present invention is a method of manufacturing a cylindrical resin cover mounted on a mushroom cultivation container, in which two opposing ends of a thermoplastic resin sheet are overlapped and welded to form a cylindrical cover from the sheet. ) a welding process that forms a; and an elastic ring forming step of forming an annular elastic ring protruding toward the outside of the cylindrical body on at least one of the upper and lower ends of the cylindrical body.

According to this configuration, a cylindrical cover with an elastic ring formed on at least one of the upper and lower ends of the cylindrical side wall portion can be manufactured from a resin sheet material. For the reasons described above, the manufactured cylindrical cover has a strength that makes it easy to handle, makes it easy to remove one cylindrical cover from a plurality of stacked cylindrical covers, and prevents deformation of the shape. The material of the sheet material is not limited as long as it can provide radial elasticity to the cylindrical cover by providing an elastic ring, for example, polypropylene, high-density polyethylene (HDPE), low-density polyethylene (LDPE), and linear low-density polyethylene. (LLDPE), etc. may be mentioned.

In the present invention, it is preferable that the sheet material has irregularities on one or both surfaces. According to this configuration, since it is possible to manufacture a cylindrical cover with irregularities on at least one of the outer and inner surfaces of the side wall portion, it is possible to further prevent the cylindrical covers stacked by the irregularities from adhering to each other.

The present invention preferably includes a molding process of inserting a molding member into the interior of the cylindrical body and molding it. According to this configuration, the cylindrical cover is expanded in the radial direction by the molding member to be molded and shaped, thereby reducing individual differences in the shape of the manufactured cylindrical cover and ensuring stable quality. It can be. Additionally, the external appearance is improved by molding. When an inverted truncated cone-shaped body is used as a forming and shaping member, the roundness of both ends of the cylindrical cover can be improved.

In the present invention, it is preferable that the elastic ring forming process is a process of forming the elastic ring by heat melting at least one of the upper and lower ends of the cylindrical body. According to this configuration, the formation of an elastic ring is easy.

Since the cylindrical cover of the present invention has an elastic ring on at least one of the upper and lower sides, it has a strength that is easy to handle, is easy to remove when the cylindrical cover is laminated, and can prevent deformation of the shape.

1 is a perspective view of a cylindrical cover of an embodiment of the present invention.
Figure 2 is the same front view.
Figure 3 is a partial cross-sectional view taken along line III-III of Figure 2.
Figure 4 is a front view showing a cylindrical cover of an embodiment of the present invention in a plurality of stacked states.
Figure 5 is a front view showing the cylindrical cover in use.
Figure 6 is a front view showing a modification of the cylindrical cover of the embodiment of the present invention.
Figure 7 is a front view showing another modified example.
Figure 8 is a process diagram of a method for manufacturing a cylindrical cover according to an embodiment of the present invention.
Figure 9 is a perspective view showing the unevenness forming process in the method of manufacturing a cylindrical cover according to an embodiment of the present invention.
Figure 10 is a front view showing the welding process.
Figure 11 is a front view showing the upper elastic ring forming process.
Figure 12 is a front view showing the molding process.
Figure 13 is a front view showing the lower elastic ring forming process.

[Cylindrical cover]

The cylindrical cover made of resin mounted on the mushroom cultivation container of this embodiment will be described with reference to FIGS. 1 to 7.

The cylindrical cover 1 is open in a circular shape at both ends, has a reduced radius from the top to the bottom, and has a hollow interior, an inverted cone shape, that is, a tapered cylindrical side wall portion 2, and the side wall portion. (2) is provided with an annular elastic ring (3) protruding toward the outside (radial direction (R) of the cylindrical cover (1)), and elastic rings ( 3) is installed (see FIGS. 1 to 3). By inserting the lower end of one cylindrical cover 1 into the upper end of another cylindrical cover 1, it can be manufactured in a stacked state (see Figure 4). By forming the elastic rings 3 at both ends of the cylindrical cover 1, the cylindrical cover 1 has a strength suitable for gripping, allowing the operator to easily grip and handle the cylindrical cover 1. The castle is excellent. The cylindrical cover 1 is transparent and blue in color, but is not limited to this and may be of another color. The material of the cylindrical cover 1 is not limited to the fact that it is provided with an elastic ring 3 to provide elastic force in the radial direction (R) to the cylindrical cover, for example, polypropylene (PP), high density Examples include polyethylene (HDPE), low-density polyethylene (LDPE), and linear low-density polyethylene (LLDPE). The dimensions of the cylindrical cover (1) can be appropriately changed depending on the shape of the mushroom cultivation container used, the type of mushroom being cultivated, the cultivation environment, etc. An example is 12 cm in height, 8.5 cm in inner diameter at the top, and 7.5 cm in inner diameter at the bottom. It may be possible, but it is not limited to this. The cylindrical cover 1 of this embodiment includes elastic rings 3 at both the top and bottom, but may be configured to include the elastic ring 3 only at either the top or bottom.

The side wall portion 2 is formed into a cylindrical shape by ultrasonic welding by overlapping opposing ends of a resin sheet material, and has a welded portion 21 provided with a plurality of welded points 21a. As shown in Figure 1, the cylindrical cover 1 of this embodiment has fusion points 21a arranged in three rows along the axial direction (Z) in the fusion portion 21, but the cylindrical cover 1 is repeatedly It is said to have a bonding strength that can maintain its shape even when used, but is not limited to this. The welding method is not limited, but a known welding method, for example, a thermal welding method, can also be adopted.

The thickness T2 of the side wall portion 2 is preferably 0.24 mm to 0.35 mm, more preferably 0.27 mm to 0.33 mm, and particularly preferably 0.29 mm to 0.31 mm. Within this range, sufficient strength and economic feasibility can be secured.

A plurality of circular through holes 22 are provided in the side wall portion 2. The through hole 22 is installed for respiration of the mushrooms being grown, and prevents the oxygen concentration in the cylindrical cover 1 from decreasing. Additionally, adhesion between the stacked cylindrical covers 1 is also prevented. The shape of the through hole 22 is not particularly limited, and rectangular, polygonal, oval, oval, etc. shapes can also be adopted. The size and number of through holes 22 are not particularly limited as long as they are within a range that does not impair the strength capable of maintaining the shape of the cylindrical cover 1.

The elastic ring 3 is an annular member located at both ends of the side wall portion 2, and consists of an upper elastic ring 31 at the upper end and a lower elastic ring 32 at the lower end. By forming the elastic ring 3, elastic force against deformation in the radial direction (R) is given to the cylindrical cover 1, so the strength of the cylindrical cover 1 is improved, making it easier to hold, and preventing deformation. It can be prevented. Since the upper elastic ring 31 is installed, when removing one cylindrical cover 1 from the plurality of cylindrical covers 1 stacked, the operator's finger is placed on the upper elastic ring 31 of the cylindrical cover 1 to be removed. or robot hands can be hung on it, making removal easier (see Figure 4). In addition, by installing the lower elastic ring 32, it is possible to prevent the cylindrical covers 1 from adhering to each other when stacking the plurality of cylindrical covers 1, so that the plurality of cylindrical covers 1 in a stacked state can be maintained. This makes it easier to remove the single cylindrical cover (1) from the

The inner surface 3a of the elastic ring 3 is smoothly connected to the inner surface 2a of the side wall 2 (see Figure 3). The thickness T3 of the elastic ring 3 in the radial direction R of the cylindrical cover 1 is such that the lower end of one cylindrical cover 1 can be inserted into the upper end of the other cylindrical cover 1. That is, there is no particular limitation as long as a plurality of cylindrical covers 1 can be stacked, but 0.9 mm to 2 mm is preferable, 1.2 mm to 1.7 mm is more preferable, and 1.2 mm to 1.4 mm is particularly preferable. Within this range, it is possible to prevent the stacked cylindrical covers from adhering to each other and suppress the volume height by stacking. The thickness (H3) of the elastic ring (3) in the axial direction (Z) of the cylindrical cover (1) is preferably 0.7 mm to 1.6 mm, more preferably 0.9 mm to 1.4 mm, and 1.2 mm to 1.4 mm. Particularly desirable. Within this range, sufficient strength and economic efficiency can be achieved. In addition, depending on the conditions of use, etc., the thickness T3 in the radial direction (R) and/or the thickness H3 in the axial direction (Z) of the elastic ring 3 may be different from the upper elastic ring 31. The lower elastic ring 32 may be configured differently. The ratio of the thickness T3 of the elastic ring 3 to the thickness T2 of the side wall portion 2 in the radial direction R is preferably 2 to 9, more preferably 3 to 7, and 4. ~6 is particularly preferred. Within this range, sufficient strength can be achieved to improve handleability and prevent shape deformation.

A method of using the cylindrical cover 1 as described above will be described. One cylindrical cover (1) is removed from the plurality of cylindrical covers (1) in a stacked state (see Fig. 4). The lower end of the removed cylindrical cover (1) is covered and mounted on the bottle opening (41) of the mushroom cultivation container (4) (see Figure 5). A mushroom cultivation container (4) equipped with a cylindrical cover (1) cultivates mushrooms (M). When cultivation is completed, the cylindrical cover (1) is grasped along with the mushroom (M) located inside, and the mushroom (M) of the cylindrical cover (1) is separated from the mushroom cultivation container (4). The mushroom (M) is removed from the cylindrical cover (1) and the mushroom (M) and the cylindrical cover (1) are separated. Clean the separated cylindrical cover (1). A plurality of cylindrical covers (1) are stacked, stored and dried. The dried cylindrical cover (1) is mounted on another mushroom cultivation container (4) and used repeatedly. When using this series of cylindrical covers, the cylindrical cover 1 has a strength suitable for gripping due to the elastic ring 3 of the cylindrical cover 1, so it can be easily gripped and its handling is improved. great. The cylindrical cover 1 can be easily gripped not only by the operator's hand but also by a machine using a robot hand or the like, making it suitable for automation of work.

<Variation example>

A modified example of the cylindrical cover of this embodiment in which convex portions are provided on the inner surface 2a and the outer surface 2b of the side wall portion 2 is shown in Figs. 6 and 7.

The cylindrical cover 101 shown in Figure 6 is a modification of this embodiment. The cylindrical cover 101 has substantially circular convex portions 123 provided irregularly on the inner surface 2a and the outer surface 2b of the side wall portion 2. The convex portion 123 prevents the stacked cylindrical covers 101 from adhering to each other and improves moisture performance when cleaning the cylindrical covers 101. In addition, the convex portion 123 increases the frictional force with the side wall portion 2 when gripping the cylindrical cover 101 and also exerts an anti-slip effect.

The cylindrical cover 201 shown in FIG. 7 is another modified example of this embodiment. The cylindrical cover 201 has approximately circular convex portions 223a continuously installed in a specific pattern on the inner surface 2a of the side wall portion 2. ), and has linear convex portions 223b installed continuously in a specific pattern on the outer surface 2b. The cylindrical cover 201 having such convex portions 223a and 223b also exhibits the same effect as the convex portion 123 of the cylindrical cover 101. In the above two modifications, a form in which convex portions are provided on both the inner surface 2a and the outer surface 2b of the side wall portion 2 is shown, but the present invention is not limited thereto. That is, the location where the convex portion is installed may be either the inner surface 2a or the outer surface 2b, and its arrangement may be irregular or regular. Additionally, the shape of the convex portion is not limited and may be, for example, a rectangle or polygon. Additionally, a concave portion may be provided instead of a convex portion.

When providing a convex portion on the inner surface 2a, the height of the convex portion is preferably 0.01 mm to 0.2 mm. When providing a concave portion on the inner surface 2a, the depth of the concave portion is preferably 0.01 mm to 0.2 mm. When the height of the convex portion and the depth of the concave portion installed on the inner surface 2a are within the above range, the humidity in the cylindrical cover can be maintained at an appropriate value during mushroom cultivation, and the mushrooms are not damaged when the cylindrical cover is removed at the end of cultivation. can be prevented. When providing a convex portion provided on the outer surface 2b, the height of the convex portion is preferably 0.01 mm to 0.2 mm. When providing a concave portion on the outer surface 2b, the depth of the concave portion is preferably 0.01 mm to 0.2 mm. When the height of the convex portion and the depth of the concave portion formed on the outer surface 2b are within the above range, sufficient water drainage properties and appropriate frictional force can be provided at the same time.

When the convex portions or concave portions are arranged irregularly, the distance between the convex portions or concave portions is preferably 0.5 mm to 1.5 mm on the inner surface 2a, and 2 mm to 4 mm on the outer surface 2b. do. When the convex portions or concave portions are arranged regularly, the distance between the convex portions or concave portions is preferably 0.5 mm to 1.5 mm on the inner surface 2a and 2 mm to 4 mm on the outer surface 2b. do.

The cylindrical cover 1 of this embodiment exhibits the following effects. Since the elastic ring 3 is provided, it is easy to grip and prevents deformation. When removing one cylindrical cover (1) from a plurality of stacked cylindrical covers (1), a finger, etc. can be caught on the upper elastic ring (31) of the cylindrical cover (1) to be removed, making the removal work easy. Lose. When stacking a plurality of cylindrical covers 1, close contact between the cylindrical covers 1 is prevented by the through hole 22 of the side wall 2 and the lower elastic ring 32, so removal is easy. . When the cylindrical covers have convex portions and/or concave portions on the side wall portion 2, close contact between the cylindrical covers can be further prevented.

[Method of manufacturing cylindrical cover]

A method of manufacturing a thermoplastic cylindrical cover mounted on a mushroom cultivation container will be described with reference to FIGS. 8 to 13.

The manufacturing method of the cylindrical cover of this embodiment includes an uneven forming process (S1), a cutting process (S2), a welding process (S3), an upper elastic ring forming process (S4), a forming process (S5), and a lower elastic ring forming process. The above modification including (S6) (see Fig. 8) having convex portions 123 on the inner surface 2a and outer surface 2b of the side wall portion 2 from the long thermoplastic resin sheet 5 wound into a roll shape. This is a method of manufacturing the example cylindrical cover 101. When manufacturing the cylindrical cover 1 without forming a convex portion on the side wall portion 2, the above uneven forming step (S1) is omitted.

The manufacturing method of the cylindrical cover of this embodiment is an elastic ring forming process, and includes both the upper elastic ring forming process (S4) and the lower elastic ring forming process (S6), so that both the upper and lower elastic rings ( A cylindrical cover having 3) can be manufactured, but this is not limited. The manufacturing method of the cylindrical cover of the present invention is an elastic ring forming process, and includes at least one of an upper elastic ring forming process (S4) and a lower elastic ring forming process (S6), whereby at least one of the upper and lower ends A cylindrical cover with an elastic ring 3 can be manufactured. The resin sheet is transparent blue and has light transparency, but it is not limited to this and other colors may be used. The material of the resin sheet is not limited as long as it can provide radial elasticity to a cylindrical cover manufactured with an elastic ring, for example, polypropylene, high-density polyethylene (HDPE), low-density polyethylene (LDPE), Linear low density polyethylene (LLDPE), etc. can be used.

The unevenness forming step (S1) is a step of forming unevenness 5a on one side or both sides of the long thermoplastic resin sheet 5 wound into a roll shape. The heated resin sheet 5 is passed between a pair of uneven forming rollers 10, and the surface of the resin sheet 5 is uneven according to the shape of the roller surface 10a of each uneven forming roller 10. (5a) (see Figure 9). The unevenness 5a formed in this process is a convex portion or a concave portion provided on the side wall of the cylindrical cover. By changing the shape of the roller surface 10a, the shape of the unevenness 5a formed on the resin sheet 5 can be changed. As a result, the side wall portion 2 has substantially circular convex portions 223a continuously installed in a specific pattern on the inner surface 2a, and has linear convex portions 223b continuously installed in a specific pattern on the outer surface 2b. The cover 201 may also be manufactured. When manufacturing the cylindrical cover 1 without any convex portions or concave portions, the uneven forming process (S1) is omitted.

The cutting step (S2) is a sheet material ( This is a process of cutting out 6) and further installing a through hole 22 in the sheet material 6. Through this process, the sheet material 6 having the unevenness 5a on one or both sides and provided with the through hole 22 can be formed. The cutting process (S2) can be performed by a known sheet processing method, such as cutting and perforating the resin sheet 5 using a press (not shown), for example, so detailed description will be omitted here. Do this.

The welding process (S3) is a process of overlapping and welding the two opposing ends 61, 61 of the sheet material 6 and forming a cylindrical body 7 from the sheet material 6. am. First, using a cylindrical body 11 consisting of a pair of outer shapes 11a and an inner shape 11b located in the center, the sheet material 6 is placed between the outer shapes 11a and the inner shape 11b into two opposing bodies. The ends 61 and 61 are placed in a polymerized state (see Figs. 10(a) and 10(b)). After that, ultrasonic welding is performed by contacting a horn 12 that transmits ultrasonic waves at the position where the ends 61 overlap each other (see FIG. 10(c)), and the cylindrical body 7 having the welded portion 21 is subjected to ultrasonic welding. ) (see Figure 10 (d)). By using ultrasonic welding, only specific parts can be quickly welded, resulting in high production efficiency. Although this embodiment uses ultrasonic welding to form the cylindrical body 7, it is not limited to this, and other known welding methods such as thermal welding can also be employed.

The upper elastic ring forming process (S4) is a process of forming the upper elastic ring 31, which is an annular ring body that protrudes toward the outside of the cylindrical body 7, at the upper end of the cylindrical body 7. By fixing the cylindrical body 7 with the holder 13 (see FIG. 11(a)) and melting the heated metal plate 14 by pushing it on the top of the cylindrical body 7 (see FIG. 11(b)), the normal An annular upper elastic ring 31 is formed that protrudes toward the outside of the sieve 7 (see Fig. 11(c)). The melting width is preferably 2 mm to 4 mm from the upper end of the cylindrical body 7. By increasing or decreasing the size of the melted width, the widths in the radial direction (R) and the axial direction Z of the upper elastic ring 31 to be formed can be adjusted. By using heat melt processing as in this embodiment, the upper elastic ring 31 can be easily formed on the cylindrical body 7, but the upper elastic ring forming step (S4) is not limited to this. For example, the upper elastic ring 31 may be formed separately from the cylindrical body 7 and connected to the upper end of the cylindrical body 7. When manufacturing a cylindrical cover without the upper elastic ring 31, the upper elastic ring forming step (S4) is omitted.

In the forming step (S5), a truncated cone-shaped molding member 15 having an outer diameter slightly larger than the inner diameter of the cylindrical body 7 is inserted into the cylindrical body 7, and the cylindrical body ( This is a process of forming (forming) by expanding 7) in the radial direction (R). A molding member 15 is placed above the cylindrical body 7 fixed to the holder 13 (see FIG. 12(a)), and the cylindrical body 7 is pressed by the upper pressing member 16. By detaching from the holder 13 and pushing upward, the molding member 15 is fitted into the inside of the cylindrical body 7 (see Fig. 12 (b)). By carrying out the above molding process (S5), individual differences in the shape of the manufactured cylindrical cover 101 can be reduced, and the quality can be stabilized. Additionally, the external appearance of the cylindrical cover 101 is improved by molding. The method of fitting the shaping member 15 into the inside of the cylindrical body 7 is not limited to this, and for example, a method of inserting the shaping member 15 into the fixed cylindrical body 7. It is also possible.

The lower elastic ring forming process (S6) is a process of forming the lower elastic ring 32, which is an annular ring body that protrudes toward the outside of the cylindrical body 7, at the lower end of the cylindrical body 7. By pushing the heated metal plate 17 into the lower end of the hanging cylindrical body 7 in a state fitted with the molding member 15 and melting it (see FIGS. 13(a) and 13(b)), the cylindrical body 7 is formed. It forms an annular lower elastic ring 32 protruding outward (see Fig. 13(c)). The melting width is preferably 2 mm to 4 mm from the lower end of the cylindrical body 7. By increasing or decreasing the size of the melt width, the widths in the radial direction (R) and the axial direction Z of the lower elastic ring 32 to be formed can be adjusted. Similar to the upper elastic ring forming process (S4), the lower elastic ring 32 can be easily formed on the cylindrical body 7 by using heat melting, but the lower elastic ring forming process (S6) is performed accordingly. There is no limitation, and for example, the lower elastic ring 32 may be formed separately from the cylindrical body 7 and connected to the lower end of the cylindrical body 7. When manufacturing a cylindrical cover without the lower elastic ring 32, the lower elastic ring forming step (S6) is omitted.

Since the manufacturing method of the cylindrical cover 101 of this embodiment includes the above steps S1 to S6, the cylindrical cover 101 can be manufactured efficiently.

Although the preferred embodiment of the present invention has been described in detail above, the present invention is not limited to the above-described embodiment, and various modifications and changes are possible within the scope of the gist of the present invention described in the claims. For example, it may be a cylindrical cover whose upper and lower elastic rings have different thicknesses in the radial direction (R) and/or thicknesses in the axial direction Z.

The cylindrical cover and the manufacturing method of the cylindrical cover according to the present invention can be used in the field of mushroom cultivation, so the industrial applicability is high.

1, 101, 201: Cylindrical cover
2: Side wall part
2a: inner
2b: exterior
21: Welding part
21a: Welding point
22: Through hole
123, 223a, 223b: Convex portion
3a: inner
3: Elastic ring
31: upper elastic ring
32: lower elastic ring
4: Container for growing mushrooms
41: Byeong-gu
5: Resin sheet
5a: irregularities
6: Sheet material
61: end
7: Regular body
10: Roller for forming irregularities
10a: roller surface
11: Cylindrical body
11a: Endotype
11b: Appearance
12: Horn
13: Holder
14: metal plate
15: Molding member
16: upper pressing member
17: metal plate
H3: Thickness
M: Mushroom
R: Radial direction
S1: Convex-convex forming process
S2: Cutting process
S3: Welding process
S4: Upper elastic ring forming process
S5: Forming process
S6: Lower elastic ring forming process
T2, T3: Thickness
Z: Axial

Claims (11)

A cylindrical cover made of resin mounted on a mushroom cultivation container,
Cylindrical side wall portion; and
It includes an annular elastic ring protruding toward the outside of the side wall portion,
A cylindrical cover, characterized in that the elastic ring is installed on at least one of the top and bottom of the side wall portion.
According to claim 1,
A cylindrical cover, characterized in that irregularities are formed on at least one of the outer and inner surfaces of the side wall portion.
According to claim 2,
A cylindrical cover characterized in that the irregularities are continuously installed in a specific pattern.
The method according to any one of claims 1 to 3,
A cylindrical cover, characterized in that the ratio of the thickness of the elastic ring to the thickness of the side wall in the radial direction is 2 to 9.
The method according to any one of claims 1 to 3,
A cylindrical cover characterized in that the thickness of the radial elastic ring is 0.9mm to 2mm.
The method according to any one of claims 1 to 3,
A cylindrical cover characterized in that the thickness of the elastic ring in the axial direction is 0.7mm to 1.6mm.
The method according to any one of claims 1 to 3,
A cylindrical cover characterized in that the thickness of the radial side wall is 0.24mm to 0.35mm.
A method of manufacturing a resin cylindrical cover mounted on a mushroom cultivation container, comprising:
A welding process, which is a process of overlapping and welding two opposing ends of a sheet made of a thermoplastic resin to form a cylindrical body from the sheet material; and
A method of manufacturing a cylindrical cover, comprising an elastic ring forming step of forming an annular elastic ring protruding toward the outside of the cylindrical body on at least one of the upper and lower ends of the cylindrical body.
According to claim 8,
A method of manufacturing a cylindrical cover, wherein the sheet material has irregularities on one or both surfaces.
According to claim 8 or 9,
A method of manufacturing a cylindrical cover, further comprising a molding process of inserting a molding member into the interior of the cylindrical body and molding the cylindrical body.
According to claim 8 or 9,
The elastic ring forming process is a process of forming the elastic ring by heat melting at least one of the upper and lower ends of the cylindrical body.