Storage container for sanitary tissue paper

Abstract

To create a hygienic tissue paper storage container that can be manufactured with high productivity and has good airtightness. [Solution] A sanitary tissue paper storage container 1 is provided with a container body 10 in which an upper part 11 and a lower part 12 of the container body are arranged to be able to contact and separate from each other, and a storage space S for storing sanitary tissue paper P is formed between the upper part 11 and the lower part 12 of the container body. The lower end of the upper part 11 of the container body is provided with an annular inner edge portion 117, and the upper end of the lower part 12 of the container body is provided with an annular groove portion 121. The groove portion 121 has a fitting portion 121a formed on its bottom side and having a width approximately the same as the thickness of the inner edge portion 117, and a guide portion 121b formed so as to gradually widen in width from the fitting portion 121a toward the opening side of the groove portion 112. The storage space S is shielded when the inner edge portion 117 enters the groove portion 121 so as to fit into the fitting portion 121a through the guide portion 121b.

Description

Technical Field

[0001] The present invention relates to a storage container for sanitary tissue paper.

Background Art

[0002] Conventionally, in a container body in which an upper part of the container body and a lower part of the container body are rotatably connected and have an openable and closable structure, when refilling a wet tissue or the like stored therein, a part of the upper part of the container body and the lower part of the container body are separated to open the container body. A storage container is known (see, for example, Patent Document 1). In this storage container (container body), a first fitting portion including a recess is formed on the upper edge of the lower part of the container body, and a second fitting portion to be inserted into the recess of the first fitting portion is formed on the lower edge of the upper part of the container body. And a protruding portion (contact member for the first fitting portion) made of an elastomer material is provided in the recess of the first fitting portion. When the container body is closed, the second fitting portion contacts the protruding portion in the recess, thereby improving the sealing performance of this container.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in the case of the storage container of Patent Document 1 described above, since the protruding portion is provided in the narrow recess of the first fitting portion, the operation of extracting the injection-molded container body from the mold may become complicated, and the productivity may deteriorate.

[0005] An object of the present invention is to provide a storage container for sanitary tissue paper that can be manufactured with good productivity and has good sealing performance.

Means for Solving the Problems

[0006] To solve the above problems, the invention described in claim 1 is: A sanitary tissue paper storage container comprising a container body in which the upper part of the container body and the lower part of the container body are arranged to be able to contact and separate from each other, and a storage space for storing sanitary tissue paper is formed between the upper part of the container body and the lower part of the container body, An annular protrusion is provided on either the lower end of the upper part of the container body or the upper end of the lower part of the container body, and an annular groove is provided on the other end. The groove portion has a fitting portion formed on the bottom side of the groove portion and having a width approximately the same as the thickness of the protruding portion, and a guiding portion formed such that its width gradually widens from the fitting portion toward the opening side of the groove portion. The storage space is characterized in that the convex portion enters the recessed groove portion so as to fit into the fitting portion through the guide portion, thereby shielding the storage space. In this context, "ring" includes not only circular rings but also elliptical rings and polygonal rings.

[0007] The invention described in claim 2 is a sanitary tissue storage container as described in claim 1, The groove portion is provided between the outer peripheral wall portion and the inner peripheral wall portion of the container body. The inner circumferential wall portion has an inclined surface formed on the side facing the outer circumferential wall portion, and the guide portion is provided in the area where the inclined surface is formed.

[0008] The invention described in claim 3 is a sanitary tissue storage container described in claim 2, The protruding portion is characterized in that it is fitted into the fitting portion while being in close contact with the bottom surface and both sides of the fitting portion.

[0009] The invention described in claim 4 is a sanitary tissue storage container described in claim 2, The upper part of the container body and the lower part of the container body are characterized by being formed from the same material.

[0010] The invention described in claim 5 is a sanitary tissue storage container as described in claim 4, The protruding portion is characterized in that it is fitted into the fitting portion while being in close contact with the bottom surface and both sides of the fitting portion.

[0011] The invention described in claim 6 relates to a sanitary tissue storage container according to any one of claims 1 to 5, The groove portion having the fitting portion and the guiding portion is characterized in that it is provided on at least the left and right side surfaces of the container body.

[0012] The invention described in claim 7 relates to a sanitary tissue storage container according to any one of claims 1 to 5, A locking mechanism is provided on the front of the upper part of the container body. The front surface of the lower part of the container body is provided with an engaging projection. The locking portion is configured to engage with the engaging projection when the protruding portion is inserted into the recessed groove and the storage space is shielded. [Effects of the Invention]

[0013] According to the present invention, a sanitary tissue paper storage container can be manufactured with high productivity and has good airtightness. [Brief explanation of the drawing]

[0014] [Figure 1] This is a perspective view showing the sanitary tissue paper storage container of this embodiment. [Figure 2] This is a perspective view showing the lid of the sanitary tissue paper storage container of this embodiment in the open position. [Figure 3] This is a rear perspective view showing the lid of the sanitary tissue paper storage container of this embodiment in the open position. [Figure 4] This is a perspective view showing the top of the container body of the sanitary tissue paper storage container of this embodiment in an open state. [Figure 5]It is a front view showing a state where a button is removed from the upper part of the container body of the toilet tissue storage container and the opening / closing lid is open. [Figure 6] It is a front view showing a state where the upper part of the container body of the toilet tissue storage container is open. [Figure 7] It is a bottom view showing the toilet tissue storage container. [Figure 8] It is a cross-sectional view taken along line VIII-VIII of FIG. 1. [Figure 9] It is a cross-sectional view of the main part in a state where the upper part of the container body and the lower part of the container body are separated and opposed to each other. [Figure 10] It is an enlarged explanatory view of part X in FIG. 9. [Embodiments for Carrying Out the Invention] <​​​​​​​​​​​​​​​​The sanitary tissue paper storage container 1, as shown in Figures 1 to 4, for example, includes a container body 10 having an outlet hole 113a for removing the sanitary tissue paper P stored inside, an opening / closing lid 2 that is rotatably attached to the container body 10 and opens and closes the outlet hole 113a, and a button 3 that switches between a closed state in which the opening / closing lid 2 closes the outlet hole 113a and an open state in which the opening / closing lid 2 opens the outlet hole 113a. A storage space S for storing sanitary tissue paper P is formed inside this sanitary tissue paper storage container 1.

[0018] As will be described later, the container body 10 of the sanitary tissue paper storage container 1 in this embodiment is composed of an upper part 11 that forms the upper part of the container body 10 and a lower part 12 that forms the lower part of the container body 10. The upper part 11 and lower part 12 of the container body are arranged to be able to contact and separate from each other, and a storage space S for storing sanitary tissue paper P is formed between the upper part 11 and the lower part 12 of the container body. Furthermore, an annular convex portion, or inner edge portion 117, is provided on either the lower end of the upper part 11 of the container body or the upper end of the lower part 12 of the container body, while an annular recessed groove portion 121 is provided on the other end. In this embodiment, for example, as shown in Figure 4, an annular inner rim portion 117 is provided at the lower end of the upper part 11 of the container body, and an annular groove portion 121 is provided at the upper end of the lower part 12 of the container body. In this embodiment, the term "annular" includes not only circular annular shapes but also elliptical annular shapes and polygonal annular shapes. The inner edge portion 117 and the groove portion 121 in this embodiment have a roughly rectangular annular shape with rounded corners.

[0019] (hygienic tissue paper) As a sanitary tissue paper P, for example, a so-called pop-up type sheet is used, in which wet wipes are stacked in an alternating folded state, and when one wet wipe is pulled out, the next wet wipe is also pulled out. Alternatively, a roll sheet can be used, in which long wet wipes are wound in a roll with perforations at regular intervals along the length, and can be torn off along the perforations for use.

[0020] (Container body) As shown in Figures 1 to 4, for example, the container body 10 is formed in a roughly rectangular parallelepiped shape, which is longer in the left-right direction than in the front-back and up-down directions. Above the center in the up-down direction, it is divided into two parts: the upper part of the container body 10, which is the upper part of the container body 10, and the lower part of the container body 12, which is the lower part of the container body 10. The upper part 11 of the container body and the lower part 12 of the container body are connected at the rear surface of the container body 10 by a connecting part 13. The upper part 11 of the container body, the lower part 12 of the container body, and the connecting part 13 are integrally formed by methods such as injection molding. The container body 10, which comprises an upper part 11, a lower part 12, and a connecting part 13, is formed from a rigid material, as will be described later.

[0021] As shown in Figures 1 to 4, for example, the container body 10 is formed such that the upper part 11 and the lower part 12 of the container body are combined, and the internal storage space S is shielded, with the overall dimensions being preferably 60 mm to 150 mm in the front-to-back direction, more preferably 80 mm to 100 mm, preferably 80 mm to 200 mm in the left-to-right direction, more preferably 145 mm to 165 mm, and preferably 30 mm to 100 mm in the up-to-down direction, more preferably 50 mm to 70 mm. Furthermore, the thickness of each surface is preferably 0.5 mm to 3.0 mm, and more preferably 1.0 mm to 2.0 mm. This size and thickness allow for high molding efficiency while achieving sufficient strength for practical use.

[0022] (Connection part) The sanitary tissue paper storage container 1 is formed to rotate around a connecting portion 13 that connects the upper part 11 and the lower part 12 of the container body, as shown in Figures 3 and 4, for example. As a result, the storage space S can be exposed to the outside, as shown in Figure 4. When shielding the storage space S, the user can rotate the upper part 11 of the container body in the opposite direction. This connecting portion 13 is formed to be thinner than the rest of the container body 10, making it easy to bend, and the upper part 11 of the container body can be easily rotated relative to the lower part 12 of the container body using the connecting portion 13 as a pivot point. Specifically, the connecting portion 13 that connects the rear surface of the upper part 11 of the container body and the rear surface of the lower part 12 of the container body is a thin plate-shaped connecting portion (thin plate-shaped member) that has a rectangular shape that is elongated in the left-right direction.

[0023] In other words, this connecting portion 13 can be bent along a fold line in the left-right direction, and by rotating the upper part 11 of the container body using this fold line as a pivot point (axis), the storage space S in the lower part 12 of the container body can be exposed or shielded. Thus, the connecting portion 13, which is bendable as a pivot point, is preferably formed using polypropylene, a type of rigid material. In this embodiment, polypropylene is used as the rigid material. Since the connecting portion 13 is made of polypropylene, a connecting portion 13 that is easy to bend and has durability against repeated deformation is obtained. This makes it easier to rotate the upper part 11 of the container body relative to the lower part 12 of the container body using the connection part 13 as a pivot point, and makes it easier to expose or shield the storage space S of the lower part 12 of the container body, thus making it easier to refill the sanitary tissue paper P.

[0024] Furthermore, by dividing the container body 10 into an upper part 11 and a lower part 12 above the center in the vertical direction, when the sanitary tissue paper P is stored in the storage space S covered by a predetermined packaging, the risk of the end seal portion of the packaging being pinched between the upper part 11 and the lower part 12 of the container body when the storage space S is sealed can be reduced, making it even easier to refill the sanitary tissue paper P. The point at which the container body 10 is divided into the upper part 11 and the lower part 12 may be near the center in the vertical direction.

[0025] (Top of the container) The upper part 11 of the container body is formed in a roughly rectangular parallelepiped shape, for example, as shown in Figures 1 to 6, with a roughly rectangular opening on its lower side. A recessed area 112 is formed near the center of the top surface 111 that forms the upper surface, and a removal section 113 with a removal hole 113a for removing the sanitary tissue paper P from the storage space S is provided in the center of the recessed area 112. Furthermore, a storage recess 115 is formed at the rear end of the recess 112, in which the biasing member 114 is housed. Furthermore, the lower end (opening) of the upper part 11 of the container body is formed with an annular outer edge portion 116 and an annular inner edge portion 117 that is located inside the outer edge portion 116 and protrudes downward from the outer edge portion 116. Furthermore, a handle portion 118 is formed at the lower end of the front surface of the upper part 11 of the container body for gripping when exposing the storage space S.

[0026] (Material of the upper part of the container body) The upper part 11 of the container body is formed of a rigid material. As the rigid material, for example, rigid plastics such as PE (polyethylene), PP (polypropylene), POM (polyacetal), and ABS (Acrylonitrile Butadiene Styrene) resin can be used. In this embodiment, polypropylene, a hard plastic, is used, and the upper part 11 of the container body is formed of polypropylene.

[0027] (recess) The recess 112 is formed near the center of the top surface 111 in a plan view, as shown in Figure 2. In Figure 2, the shape of the recess 112 is shown as a curved, roughly rectangular shape that reaches the front end of the upper part 11 of the container body in a plan view, but the specific shape of the recess 112 is not limited to this.

[0028] The vertical depth of the recess 112 is preferably 5 mm to 20 mm when viewed from the top surface 111. The dimensions in plan view are not particularly limited as long as an outlet 113 can be formed inside, but are preferably 40 mm to 80 mm in the front-to-back direction and 40 mm to 120 mm in the left-to-right direction.

[0029] (Ejecting part) The extraction portion 113 is formed near the center of the recess 112 in a plan view, and is made of an elastic material. A roughly spherical bulge 113b is formed approximately in the center of the extraction portion 113, and an extraction hole 113a is provided in this bulge 113b. Furthermore, the edge of the extraction hole 113a is provided with three protruding pieces 113c that extend from the front edge toward the center of the extraction section 113.

[0030] The dispensing portion 113 is preferably formed as a film with a thickness of 0.5 mm to 2.0 mm in the vertical direction. Furthermore, the elastic material used to form the dispensing portion 113 can be, for example, silicone rubber or TPE (Thermoplastic Elastomers) such as styrene-butadiene, polyester, polyethylene, or urethane, and it is preferable that the hardness is between 20 and 90. If the hardness of the elastic material is lower than the above value, it is undesirable because it becomes too soft, making molding difficult and reducing molding efficiency. Furthermore, if the hardness of the elastic material is higher than the above value, the dispensing section 113, which has dispensing holes 113a for taking out the sanitary tissue paper P, becomes hard, creating too much resistance, making it difficult to take out the sheets one by one, and also making it difficult to insert fingers into the storage space S when pulling out the sheets, which is undesirable. The hardness values ​​mentioned above were measured according to JIS K 6253 (Type A durometer).

[0031] (Ejection hole) The removal hole 113a is a hole formed in the central part of the removal section 113 in a plan view, which connects to the storage space S. For example, in Figure 2, the extraction hole 113a has a shape in which each side of the triangle protrudes inward in an arc shape, and three slits intersect at the centroid point, connecting each vertex to the centroid point, forming a roughly inverted Y shape. In addition, the width of the slit extending in the front-to-back direction is wider than the width of the other slits. Note that the number of slits may be fewer or more than this, and for example, the extraction hole 113a may be formed by making two slits in a cross shape.

[0032] The dispensing section 113, having an elastic material formed around the dispensing hole 113a, can apply appropriate resistance to the sanitary tissue paper P and, after the sanitary tissue paper P stored in the storage space S has been pulled out, performs the function of holding the next sheet of sanitary tissue paper P. Furthermore, if the sanitary tissue paper P is in the form of a roll sheet, the dispensing section 113 performs the function of cutting the sanitary tissue paper P at the perforations provided on the sanitary tissue paper P.

[0033] (projection) The protruding piece 113c is the point where the sanitary tissue paper P is pulled out from the dispensing hole 113a comes into contact with it, and is provided to apply appropriate resistance to the sanitary tissue paper P being pulled out from the dispensing hole 113a. Specifically, when a user opens the lid 2 of the tissue paper storage container 1 to take out tissue paper P, the lid 2, which is positioned upright at the back of the tissue paper storage container 1, does not obstruct the action of taking out tissue paper P. The user reaches their hand from the front of the tissue paper storage container 1 and pulls out the tissue paper P from the removal hole 113a. As a result, the tissue paper P pulled out from the removal hole 113a comes into contact with the protruding piece 113c on the front edge. At this time, the projection 113c, which protrudes backward from the front edge, slides against the sanitary tissue paper P as it is pulled out towards the front from the dispensing hole 113a. This projection 113c applies appropriate resistance to the sanitary tissue paper P, preventing it from being pulled out too far from the dispensing hole 113a.

[0034] In other words, the projection 113c that extends backward from the front edge provides appropriate friction to the sanitary tissue paper P being pulled out towards the front from the dispensing hole 113a, and has the function of preventing the next sanitary tissue paper P being pulled out after the one being used from being pulled out too far from the dispensing hole 113a. Then, the next sheet of sanitary tissue P that is pulled out following the one being used will be held in the dispensing hole 113a with its end pulled out to the appropriate length.

[0035] Furthermore, the end of the sanitary tissue paper P held in the removal hole 113a in this manner is supported by three protrusions, including the front protrusion 113c. The dispensing hole 113a, which holds the end of the sanitary tissue paper P, is provided in the bulging portion 113b of the dispensing section 113. Therefore, the tip of each projection 113c is positioned higher than the dispensing section 113, which is the base surface around the bulging portion 113b. As a result, the end of the sanitary tissue paper P is supported at a higher position than its surroundings by these projections 113c and held in the dispensing hole 113a, making it easier to grasp the sanitary tissue paper P.

[0036] (Biasing member) The biasing member 114 is a strip-shaped member made of an elastic material, as shown in Figure 2, for example. One end of the biasing member 114 is fixed behind the recess 112, and the other end of the biasing member 114 is fixed to the insertion portion 23 (described later) of the opening / closing lid 2. This biasing member 114 biases the opening / closing lid 2 in the opening direction, and when the user presses the button part 3, it pushes up the opening / closing lid 2 by rotating it around the connection point with the upper part 11 of the container body as the axis of rotation.

[0037] The biasing member 114 is formed in the shape of a strip with a width preferably of 2 mm to 30 mm, more preferably of 8 mm to 10 mm, and a thickness preferably of 0.5 mm to 3.0 mm, and more preferably of 1.0 mm to 2.0 mm. The biasing member 114 is formed to such a size that it is possible to push up the opening / closing lid 2 without force when opening the lid, and when closing the opening / closing lid 2, the biasing member 114 can be easily folded and stored in the storage recess 115.

[0038] Furthermore, as shown in Figure 2, the biasing member 114 is formed to be in an extended state when no force is applied, so that, for example, as shown in Figure 8, when the opening / closing lid 2 is closed and the biasing member 114 is bent, a force is generated that tries to return it to the state shown in Figure 2. This allows the biasing member 114 to bias the opening / closing lid 2 to rotate backward, using the connection point between the opening / closing lid 2 and the upper part 11 of the container body as the axis of rotation.

[0039] (Storage recess) The storage recess 115 is a recess for storing the bent portion of the biasing member 114 when the biasing member 114 is pushed downward when the opening / closing lid 2 is closed, as shown in Figure 8. As shown in Figure 2, the storage recess 115 is formed to be recessed further down than the recess 112, behind the removal portion 113 within the recess 112 and near the front of the biasing member 114. The shape of the storage recess 115 is not particularly limited, but for example, it should be a roughly rectangular parallelepiped that is longer in the left-right direction than in the front-back direction, and should have enough space to accommodate the biasing member 114 that is pushed in and folded by the opening / closing lid 2 when the opening / closing lid 2 is closed.

[0040] (Outer edge / Inner edge) The outer edge portion 116 is annular, as shown in Figures 4 to 6, for example, and is formed at the lower end of the upper part 11 of the container body. The inner edge portion 117 is annular in shape, as shown in Figures 4 to 6, for example, and is located inside the outer edge portion 116 at the lower end of the upper part 11 of the container body, and protrudes downward from the outer edge portion 116. This inner edge portion 117 is formed to fit into the groove portion 121 of the lower part 12 of the container body, which will be described later, when the storage space S is shielded. Furthermore, the outer edge 116 and the inner edge 117 are part of the upper part 11 of the container body, and are therefore made of polypropylene. Furthermore, since the groove portion 121 (outer peripheral wall portion 1211, inner peripheral wall portion 1212), which will be described later, is also formed of the same polypropylene, the inner edge portion 117 of the upper part 11 of the container body slides into the groove portion 121 of the lower part 12 of the container body, making it easy for the upper part 11 and the lower part 12 of the container body to fit together tightly and maintain a suitable airtight seal of the storage space S.

[0041] (Handle section) The handle portion 118 is formed integrally with the upper part of the container body 11, projecting in an arch shape from the front surface, as shown in Figures 1 to 8, for example, at the center of the front surface of the upper part of the container body 11, and a gap a is formed between it and the front surface of the container body 10, allowing a finger to be hooked. To expose the storage space S, the handle portion 118 is grasped, and the upper part of the container body 11 is rotated using the connecting portion 13 as a pivot point. Furthermore, two locking parts 1181 are provided on the inner surface of the handle part 118.

[0042] Furthermore, the shape of the handle portion 118 does not have to be an arched shape; any shape is acceptable as long as it protrudes from the front surface of the upper part 11 of the container body and has a gap a between it and the front surface. Furthermore, when the upper part 11 of the container body and the lower part 12 of the container body are engaged, the handle portion 118 overlaps in the front-to-back direction with the engaging projection 123 (described later) provided on the lower part 12 of the container body. As a result, the engaging projection 123 is not visible from the front.

[0043] (Locking part) The locking portion 1181 is provided on the front surface of the upper part 11 of the container body, for example, as shown in Figures 4 and 6 to 8. Specifically, the locking portions 1181 are provided in pairs on the inner surface of the handle portion 118 at predetermined intervals along the left-right direction, and are designed to engage with the engaging projections 123 of the lower part 12 of the container body when the storage space S is shielded, thereby maintaining the shielded state. The spacing between the two locking portions 1181 is arbitrary, but should be approximately the width of a typical user's finger. Specifically, they are formed with a spacing of 5 mm to 25 mm, and more preferably, with a spacing of 18 mm to 25 mm. Since this locking portion 1181 is part of the upper part 11 of the container body, it is made of polypropylene. Furthermore, since the engaging projection 123, which will be described later, is also made of polypropylene, the locking portion 1181 is designed to engage suitably with the engaging projection 123, and the upper part 11 of the container body can fit suitably into the lower part 12 of the container body to shield the storage space S. The number of locking parts 1181 is not limited to two; they can be provided at positions separated to the left and right from the center of the inner surface of the handle part 118 in the left-right direction. For example, there may be two on each side (a total of four).

[0044] (Bottom of the container) The lower part 12 of the container body is formed in a roughly rectangular parallelepiped shape, for example, as shown in Figure 4, with a roughly rectangular opening at its upper side, and an annular groove portion 121 is formed at the upper edge (opening). Furthermore, a non-slip portion 122 is formed on the bottom 12a of the lower part 12 of the container body, which prevents slipping when removing the sanitary tissue paper P stored in the storage space S through the removal hole 113a. Furthermore, an engaging projection 123 is provided near the center of the upper end of the front surface of the lower part 12 of the container body, which is integrally formed with the lower part 12 of the container body and protrudes forward.

[0045] (Material of the lower part of the container) The lower part 12 of the container body is formed from the same rigid material as that used in the upper part 11 of the container body. In this embodiment, polypropylene, a rigid plastic, is used as the rigid material, and the lower part 12 of the container body is formed from polypropylene.

[0046] (concave groove) The groove portion 121 is annular in shape, as shown in Figure 4, and is formed at the upper end of the lower part 12 of the container body so that the inner edge portion 117 of the upper part 11 of the container body fits into it when shielding the storage space S. This groove portion 121 is provided between the outer peripheral wall portion 1211, which is formed as the outer peripheral wall surface of the lower part of the container body 12, and the inner peripheral wall portion 1212, which is formed as the inner peripheral wall surface of the lower part of the container body 12. Furthermore, the groove portion 121 (outer peripheral wall portion 1211, inner peripheral wall portion 1212) is part of the lower part 12 of the container body and is therefore made of polypropylene.

[0047] As described above, the groove portion 121 in this embodiment is provided between the outer peripheral wall portion 1211 and the inner peripheral wall portion 1212 of the lower part 12 of the container body. Specifically, the groove portion 121 of the lower part 12 of the container body has, for example, a fitting portion 121a formed on the bottom side of the groove portion 121 and a guide portion 121b formed on the opening side of the groove portion 121, as shown in Figures 9 and 10. The fitting portion 121a has a width approximately the same as the thickness of the inner edge portion 117 of the upper part 11 of the container body. Here, the thickness W1 of the inner edge portion 117 and the width W2 of the fitting portion 121a are formed to be the same size. The guide portion 121b is formed such that its width gradually widens from the fitting portion 121a toward the opening side of the groove portion 121. In this embodiment, the inner circumferential wall portion 1212 has an inclined surface formed on the side facing the outer circumferential wall portion 1211, and the guide portion 121b is provided in the area where the inclined surface is formed. The inclined surface formed on the inner circumferential wall portion 1212 has an inclination such that it moves away from the outer circumferential wall portion 1211 as it moves from the fitting portion 121a side toward the opening side of the recessed groove portion 121. In other words, the guide portion 121b widens towards the inner circumferential wall portion 1212 as it moves from the fitting portion 121a side toward the opening side of the recessed groove portion 121.

[0048] In this container body, the groove 121 in the lower part 12 is designed so that the inner edge 117 of the upper part 11 of the container body fits into the groove 121 through the guide portion 121b and engages with the fitting portion 121a. The width of the guide portion 121b on the opening side of the groove 121 is wider than the thickness of the inner edge portion 117 of the upper part 11 of the container body, so the inner edge portion 117 can easily enter through the guide portion 121b of the groove 121. Furthermore, the inner edge portion 117, which enters the groove portion 121 through the wide guide portion 121b, is designed to easily fit into the fitting portion 121a. In other words, the inner edge portion 117 is easier to fit into the fitting portion 121a than the inner edge portion 117 is directly fitted into the fitting portion 121a, which has approximately the same width as the thickness of the inner edge portion 117 of the upper part 11 of the container body, by being guided through the guiding portion 121b. The presence of a guide portion 121b in the recessed groove portion 121 makes it easier for the inner edge portion 117 to fit into the fitting portion 121a. Furthermore, since the thickness W1 of the inner edge portion 117 and the width W2 of the fitting portion 121a are formed to be the same size, when the inner edge portion 117 is fitted into the fitting portion 121a, the inner edge portion 117 is in close contact with both sides of the fitting portion 121a. In this way, the inner edge 117 of the upper part 11 of the container body fits into the groove 121 of the lower part 12 of the container body, thereby shielding the storage space S.

[0049] In particular, when the inner edge 117 of the upper part 11 of the container body fits into the groove 121 of the lower part 12 of the container body, the inner edge 117 fits into the fitting part 121a while in close contact with the bottom surface and both sides of the fitting part 121a. In other words, when the inner edge 117 is fitted into the groove 121, the tip of the inner edge 117 abuts against the bottom surface of the fitting part 121a. As the inner edge 117 makes close contact with the bottom surface and both sides of the fitting portion 121a, a relatively strong frictional resistance is applied between the inner edge 117 and the fitting portion 121a, making it difficult for the inner edge 117, once fitted into the fitting portion 121a, to come loose. Furthermore, since the inner edge portion 117 is in close contact with the bottom surface and both sides of the fitting portion 121a, the airtightness is enhanced, making it possible to effectively shield the storage space S.

[0050] Furthermore, the guide portion 121b provided in the groove portion 121 widens towards the inner circumferential wall portion 1212 as it moves from the fitting portion 121a side toward the opening side of the groove portion 121. As a result, the inner edge portion 117 of the upper part 11 of the container body that fits into the groove portion 121 of the lower part 12 of the container body comes into closer contact with the outer circumferential wall portion 1211 side of the groove portion 121 than with the inner circumferential wall portion 1212 side. If the inner edge 117 of the upper part 11 of the container body and the outer peripheral wall 1211 of the groove 121 of the lower part 12 of the container body are in close contact, gaps are less likely to form on the outer surface of the container body 10, making it easier to prevent outside air and foreign matter from entering through such gaps, thus enabling the storage space S to be effectively shielded.

[0051] Furthermore, since both the inner edge 117 of the upper part 11 of the container body and the groove 121 of the lower part 12 of the container body are formed from the same material (polypropylene), the inner edge 117 of the upper part 11 of the container body slides into the groove 121 of the lower part 12 of the container body, allowing the upper part 11 and the lower part 12 of the container body to adhere closely together and maintain a suitable airtight seal of the storage space S.

[0052] The groove portion 121 of this embodiment has a fitting portion 121a and a guiding portion 121b around its entire circumference. However, the groove portion 121 having a fitting portion 121a and a guide portion 121b only needs to be provided on the left and right side portions (12R, 12L) of the lower part 12 (container body 10) of the container body. A connecting portion 13 is provided on the rear side of the container body 10, connecting the upper part 11 and the lower part 12 of the container body. On the front side of the container body 10, a locking portion 1181 of the upper part 11 and an engaging projection 123 of the lower part 12 of the container body engage and connect, maintaining a shielded state. Therefore, if recessed groove portions 121 having a fitting portion 121a and a guiding portion 121b are provided on the left side portion 12L and the right side portion 12R of the lower part 12 of the container body, the storage space S will be shielded. In addition, if a recessed groove 121 having a fitting portion 121a and a guide portion 121b is selectively provided on the left side portion 12L and the right side portion 12R of the lower part 12 of the container body, then a recessed groove having a groove shape like the guide portion is provided on the front and rear surfaces of the lower part 12 of the container body.

[0053] (Outer wall / inner wall) The outer peripheral wall portion 1211 is formed as the outer peripheral wall surface of the lower part 12 of the container body, and when shielding the storage space S, it abuts against the outer edge portion 116 of the upper part 11 of the container body. The inner circumferential wall portion 1212 is formed as the inner circumferential wall surface of the lower part 12 of the container body, and as shown in Figure 4, it comprises first guide portions 1212a provided at both ends in the left-right direction of the rear surface, and a plurality of second guide portions 1212b provided on the rear surface side, so as to protrude upward from the outer circumferential wall portion 1211.

[0054] (Guide Sections 1 & 2) As shown in Figure 4, the first guide section 1212a is provided at both ends in the left-right direction of the rear surface of the lower part 12 of the container body, extending across the left or right side, and is taller in the vertical direction than the outer peripheral wall section 1211 and the second guide section 1212b. The second guide section 1212b is wavy and is provided in multiple locations along the left-right direction on the rear surface of the lower part 12 of the container body. Its height in the vertical direction is greater than that of the outer peripheral wall section 1211, but lower than that of the first guide section 1212a.

[0055] (Anti-slip part) The anti-slip portion 122 is formed at the bottom 12a of the lower part 12 of the container body, for example, by an elastic material surrounded by a hard material, as shown in Figure 4. Specifically, as shown in Figures 6 to 8, the anti-slip portions 122, which are made of an elastic material and have a substantially circular shape, are provided at the four corners of the bottom 12a of the lower part 12 of the container body, and these anti-slip portions 122 are exposed to the outer surface from the bottom 12 of the lower part 12 of the container body. The anti-slip portion 122 exposed on the outer surface of the lower part 12 of the container body is in contact with the mounting surface on which the storage container 1 is placed, and serves to prevent the storage container 1 from slipping when it is placed on the mounting surface.

[0056] (Engaging protrusion) The engaging projection 123 is a projection that protrudes forward, formed integrally with the lower part of the container body 12 at approximately the center of the upper end of the front surface of the lower part of the container body 12, as shown in Figures 4 and 6, and engages with the two locking parts 1181 when the storage space S is shielded. The engaging projection 123 is formed such that its length in the left-right direction is longer than the distance between the two locking portions 1181. Since this engaging projection 123 is part of the lower part 12 of the container body, it is made of polypropylene. As mentioned above, the engaging projection 123 and the locking portion 1181, both formed of polypropylene, are designed to engage appropriately, allowing the upper part 11 of the container body to fit nicely into the lower part 12 of the container body and shield the storage space S.

[0057] (Opening and closing lid) The opening / closing lid 2 is a member that is rotatably attached to the rear of the recess 112 in the upper part 11 of the container body, as shown in Figures 1 to 5, and has a flattened, curved, substantially rectangular shape. The opening / closing lid 2 is provided with an opening / closing lid side locking portion 21 on the front side when the lid is closed, and on the lower side of the opening / closing lid 2 is provided with an opening / closing lid side sealing ring portion 22 and an insertion portion 23 into which the biasing member 114 is inserted. Furthermore, the opening / closing lid 2 is formed such that, when closed, its shape in a plan view is substantially the same as the shape of the recess 112 in the upper part 11 of the container body in a plan view, excluding the part where the button portion 3 is provided. When closed, it can be fitted into the recess 112 and is formed to be flush with the top surface portion 111.

[0058] (Material of the opening / closing lid) The opening / closing lid 2 is made of the same rigid material as that used in the container body 10.

[0059] (Lid locking mechanism) The locking portion 21 on the opening / closing lid side is a claw-shaped portion that protrudes forward from the opening / closing lid 2, as shown in Figures 2, 3, and 5. By engaging with the locking portion 313 (described later) formed on the button portion 3, the opening / closing lid 2 is locked in the closed position. When the user presses the button portion 3, the engagement between the locking portion 21 on the opening / closing lid side and the locking portion 313 is released, and the biasing force generated by the biasing member 114 causes the opening / closing lid 2 to open. Furthermore, the opened lid 2 can be closed by rotating it in the opposite direction to when it was opened, thereby engaging the locking portion 21 on the lid side with the locking portion 313 on the button side (described later).

[0060] The shape of the locking portion 21 on the opening / closing lid side is arbitrary, as long as it engages with the locking portion 313 on the button side to lock the opening / closing lid 2 in the closed position, and when the user presses the button portion 3, the engagement between the locking portion 21 on the opening / closing lid side and the locking portion 313 on the button side is released. It is not limited to the claw shape shown in Figures 2, 3, and 5.

[0061] (Opening / closing lid side sealing ring part) The sealing ring portion 22 on the opening / closing lid side is, for example, as shown in Figures 2 and 5, substantially rectangular and annular in shape, and protrudes downward when the opening / closing lid 2 is closed. As shown in Figure 8, the edge of the sealing ring portion 22 on the opening / closing lid side is formed in the approximate center of the lower surface of the opening / closing lid 2 so as to contact the outer circumference of the dispensing portion 113 formed on the upper part 11 of the container body.

[0062] (Insertion section) The insertion portion 23 is, for example, fixed by inserting the biasing member 114 into the rear end of the opening / closing lid 2, as shown in Figures 2 and 5.

[0063] (Button area) The button section 3, for example as shown in Figure 8, includes a button mounting section 32 provided on the container body 10 (upper part 11 of the container body), a button 31 attached to the button mounting section 32, and a button elastic member 33 elastically deformable interposed between the button 31 and the button mounting section 32. The button 31 and the button mounting portion 32 are made of the same hard material as used in the container body 10, and the button elastic member 33 is made of the same elastic material as the dispensing portion 113 and the biasing member 114. When the user presses the button 31 of the button section 3, the locking of the opening / closing lid 2 by the button 31 is released, and the opening / closing lid 2 is pushed up by the biasing force of the biasing member 114 and opened.

[0064] (Button mounting area) The button mounting portion 32 is, for example, a mounting location for the button 31, provided in the portion where the button portion 3 is located in front of the recess 112 of the upper part 11 of the container body, as shown in Figure 8. On both the left and right sides of the button mounting portion 32, there are shaft holes (not shown) into which the button shaft 312 (shaft portion 312b) of the button 31, which will be described later, is inserted. Furthermore, the button mounting portion 32 is provided with a contact surface portion 32a against which the tip of the button elastic member 33, which will be described later, abuts. This contact surface portion 32a faces the lower surface of the button 31 attached to the button mounting portion 32.

[0065] (button) The button 31, as shown in Figure 8 for example, is a component formed independently of the button mounting portion 32, and comprises an upper surface portion 311 that is pressed by the user, button shafts 312, 312 provided on both the left and right sides of the button 31, a button-side locking portion 313 that engages with the opening / closing lid side locking portion 21 of the opening / closing lid 2 to lock the opening / closing lid 2 in the closed position, and elastic member support portions 314, 314 that support the button elastic member 33 on the lower surface side of the button 31.

[0066] (Top part) As shown in Figures 1 and 8, for example, the upper surface portion 311 is formed such that, in a plan view, the rear base end portion 311b is straight and the front tip portion 311a is arc-shaped, with the tip portion 311a protruding forward from the recess 112. Furthermore, a gap b is formed between the tip 311a of the upper surface portion 311 and the upper part 11 of the container body. The size of the upper surface portion 311 is determined according to the size of the portion of the recess 112 that is not covered by the opening / closing lid 2, but it is desirable that the longest part in the front-to-back direction be 10 mm to 30 mm long, and the longest part in the left-to-right direction be 30 mm to 100 mm long. The tip portion 311a of the button 31 may be formed to be straight.

[0067] Furthermore, the upper portion 311 is formed to be inclined downward from the base end portion 311b towards the tip portion 311a. The inclination angle of the upper surface portion 311 is preferably 6 to 10 degrees. Furthermore, the inclination angle of the upper surface portion 311 may differ between the base end portion 311b and the tip end portion 311a. For example, the inclination angle on the base end portion 311b may be 6 to 8 degrees, and the inclination angle on the tip end portion 311a may be 8 to 10 degrees, thus forming a two-stage inclination.

[0068] (Button axis) The button shaft 312, as shown in Figure 8, for example, has a base portion 312a provided on the lower surface of the upper portion 311 and a shaft portion 312b extending outward from the base portion 312a, and a pair of these are provided on the left and right sides of the button 31. The pair of button shafts 312 are arranged symmetrically, and each shaft portion 312b extends along the same axis in a direction that separates them from one another. The shaft portion 312b of the button shaft 312 is inserted into the shaft hole (not shown) of the button mounting portion 32, and the button 31 is pivotally supported on the button mounting portion 32.

[0069] (Button-side locking mechanism) The button-side locking portion 313 is, for example, a recess formed behind the button 31, as shown in Figure 8. The opening / closing lid-side locking portion 21 formed on the opening / closing lid 2 engages with the button-side locking portion 313, thereby locking the opening / closing lid 2 in the closed position. Furthermore, when the user presses the button 3, the locking portion 21 on the opening / closing lid side disengages, and the biasing force generated by the biasing member 114 pushes the opening / closing lid 2 upward, causing it to open. The shape of the button-side locking portion 313 is arbitrary, as long as it locks the opening / closing lid 2 in the closed position and disengages the engagement between the button-side locking portion 313 and the opening / closing lid-side locking portion 21 when the user presses the button portion 3. It is not limited to the recess shown in the figure, and may, for example, be a claw portion that the opening / closing lid-side locking portion 21 engages with.

[0070] (Elastic member support part) The elastic member support portion 314 is a plate-shaped projection that protrudes downward from the lower surface of the upper portion 311, as shown in Figure 8, and is provided in pairs with a gap between them in the front and back. A button-shaped elastic member 33 is positioned between this pair of elastic member support parts 314, 314. In this example, the front and rear elastic member support portions 314 are formed to be of different sizes, with the front elastic member support portion 314 being smaller than the rear elastic member support portion 314. However, the front elastic member support portion 314 may be formed to be larger than the rear elastic member support portion 314, or they may be formed to be the same size.

[0071] (Button elastic member) The button elastic member 33 is an elastically deformable plate-shaped member made of an elastic material. The upper end of the button elastic member 33 is sandwiched and supported between a pair of elastic member support parts 314, 314, and the button elastic member 33 is positioned on the lower surface of the button 31. The button elastic member 33 in this configuration has a shape that is elongated in the left-right direction relative to the button 31, and the button elastic member 33 positioned on the button 31 extends along the front edge on the tip portion 311a side of the button 31. Preferably, the button elastic member 33 is positioned over approximately the entire width of the button 31. Then, with the button 31, which is supported by a pair of elastic member support parts 314, 314, attached to the button mounting part 32, the tip of the free end of the button elastic member 33 is positioned to abut against the contact surface part 32a of the button mounting part 32. In particular, since the upper end of the button elastic member 33 is supported by a pair of elastic member support parts 314, 314, the tip of the lower end of the button elastic member 33 abuts against the contact surface 32a of the button mounting part 32 in a stable position.

[0072] (Operation of the buttons) As described above, the button 31 locks the opening / closing lid 2 in the closed position when the button-side locking portion 313 of the button 31 is engaged with the opening / closing lid-side locking portion 21 of the opening / closing lid 2. Then, when the button 31 that locks the opening / closing lid 2 in the closed position is pressed, the elastic member 33 of the button is elastically deformed, causing the button 31 to rotate. This changes the position of the button 31 so that the tip 311a of the button 31 goes down, releasing the lock on the opening / closing lid 2 by the button 31, opening the lid 2 and putting it in the open position. Furthermore, when the pressure on button 31 is released, the restoring force of the button elastic member 33 causes the tip 311a of button 31 to rise, returning button 31 to its original position.

[0073] [Effects of the Embodiment] The sanitary tissue paper storage container 1 of this embodiment includes a container body 10 in which the upper part 11 and the lower part 12 of the container body are arranged to be able to contact and separate from each other, and a storage space S for storing sanitary tissue paper P is formed between the upper part 11 and the lower part 12 of the container body. In the container body 10, an annular inner edge portion 117 is provided at either the lower end of the upper part 11 of the container body or the upper end of the lower part 12 of the container body, and an annular groove portion 121 is provided at the other end. The groove portion 121 has a fitting portion 121a formed on the bottom side of the groove portion and having a width approximately the same as the thickness of the inner edge portion 117, and a guide portion 121b formed so as to gradually widen in width from the fitting portion 121a toward the opening side of the groove portion 121. The container body 10 is configured such that the storage space S is shielded when the inner edge portion 117 enters the groove portion 121 through the guide portion 121b and fits into the fitting portion 121a. In the sanitary tissue paper storage container 1 of this embodiment, an annular inner rim portion 117 is provided at the lower end of the upper part 11 of the container body, and an annular groove portion 121 is provided at the upper end of the lower part 12 of the container body.

[0074] In the sanitary tissue storage container 1 of this embodiment, the width of the guide portion 121b on the opening side of the groove portion 121 of the lower part 12 of the container body is wider than the thickness of the inner edge portion 117 of the upper part 11 of the container body. Therefore, the inner edge portion 117 can easily enter through the guide portion 121b of the groove portion 121, and the inner edge portion 117 that has entered the groove portion 121 through the wide guide portion 121b can easily fit into the fitting portion 121a. For example, the inner edge portion 117 is easier to fit into the fitting portion 121a than In other words, the presence of a guide portion 121b in the groove portion 121 makes it easier for the inner edge portion 117 to fit into the fitting portion 121a. Furthermore, the inner edge 117 of the upper part 11 of the container body fits into the recessed groove 121 of the lower part 12 of the container body and engages with the fitting part 121a, thereby effectively shielding the storage space S. Furthermore, the inner edge portion 117 of the upper part 11 of the container body fits into the fitting portion 121a of the groove portion 121 of the lower part 12 of the container body, making it difficult for the inner edge portion 117 to come out of the groove portion 121.

[0075] Furthermore, in the case of the sanitary tissue paper storage container 1 of this embodiment, a groove 121 is provided between the outer peripheral wall portion 1211 and the inner peripheral wall portion 1212 of the lower part 12 of the container body, and an inclined surface is formed on the inner peripheral wall portion 1212 side to provide a guide portion 121b. As a result, the inner edge portion 117 of the upper part 11 of the container body that fits into the groove 121 of the lower part 12 of the container body becomes more closely in contact with the outer peripheral wall portion 1211 side of the groove 121 than with the inner peripheral wall portion 1212 side. Because the inner edge 117 of the upper part 11 of the container body and the outer peripheral wall 1211 side of the recessed groove 121 of the lower part 12 of the container body are in close contact, gaps are less likely to form on the outer surface of the container body 10, thus effectively shielding the storage space S.

[0076] Furthermore, in the case of the sanitary tissue paper storage container 1 of this embodiment, when the inner edge portion 117 of the upper part 11 of the container body fits into the recessed groove portion 121 of the lower part 12 of the container body, the inner edge portion 117 fits into the fitting portion 121a in close contact with the bottom surface and both sides of the fitting portion 121a. As a result, a relatively strong frictional resistance is applied between the inner edge portion 117 and the fitting portion 121a, making it difficult for the inner edge portion 117 fitted into the fitting portion 121a to come loose. Furthermore, since the inner edge portion 117 is in close contact with the bottom surface and both sides of the fitting portion 121a, the airtightness is enhanced, and the storage space S can be effectively shielded.

[0077] Furthermore, in the case of the sanitary tissue paper storage container 1 of this embodiment, the inner edge 117 of the upper part 11 of the container body and the groove 121 of the lower part 12 of the container body are made of the same material (in this case, polypropylene). As a result, the inner edge 117 of the upper part 11 of the container body slides into the groove 121 of the lower part 12 of the container body, allowing the upper part 11 and the lower part 12 of the container body to be in close contact and the airtightness of the storage space S to be suitably maintained.

[0078] In the embodiments described above, an annular inner rim portion 117 is provided at the lower end of the upper part 11 of the container body, and an annular groove portion 121 is provided at the upper end of the lower part 12 of the container body. However, the present invention is not limited to these embodiments. For example, an annular groove may be provided at the lower end of the upper part 11 of the container body, and an annular inner edge may be provided at the upper end of the lower part 12 of the container body. Even when a groove is provided at the lower end of the upper part 11 of the container body, the groove recess shall have the fitting portion and the guiding portion described above.

[0079] Furthermore, in the above embodiments, the upper part 11 of the container body and the lower part 12 of the container body are connected by a connecting part 13, and the upper part 11 of the container body is rotated using the connecting part 13 as a pivot point (axis) to expose or conceal the storage space S of the lower part 12 of the container body. However, the present invention is not limited to this. For example, the container may have a separate upper part 11 and lower part 12, and the storage space S may be shielded by attaching the upper part 11 to the lower part 12, or the storage space S may be exposed by removing the upper part 11 from the lower part 12. In this case, the recessed groove 121 has a fitting part 121a and a guide part 121b around its entire circumference.

[0080] Furthermore, it goes without saying that other specific structural details can be modified as needed. [Explanation of Symbols]

[0081] 1. Storage container for sanitary tissue paper 10 Container body 11 Top of the container 113 Removal section 113a Ejection hole 114 Biasing member 117 Inner edge (convex portion) 1181 Locking part 12. Bottom of the container 12a bottom 12r Right side part 12l Left side part 121 Groove section 121a Fitting part 121b Guidance part 1211 Outer wall 1212 Inner peripheral wall 122 Anti-slip part 123 Engagement protrusion 13 Connection part 2. Opening and closing the lid P Sanitary tissue paper S storage space

Claims

1. A sanitary tissue paper storage container comprising a container body in which the upper part of the container body and the lower part of the container body are arranged to be able to contact and separate from each other, and a storage space for storing sanitary tissue paper is formed between the upper part of the container body and the lower part of the container body, An annular protrusion is provided on either the lower end of the upper part of the container body or the upper end of the lower part of the container body, and an annular groove is provided on the other end. The groove portion has a fitting portion formed on the bottom side of the groove portion and having a width approximately the same as the thickness of the protruding portion, and a guiding portion formed such that its width gradually widens from the fitting portion toward the opening side of the groove portion. A sanitary tissue paper storage container characterized in that the convex portion fits into the recessed groove portion through the guide portion so as to fit into the fitting portion, thereby shielding the storage space.

2. The groove portion is provided between the outer peripheral wall portion and the inner peripheral wall portion of the container body. The sanitary tissue storage container according to claim 1, characterized in that the inner circumferential wall portion has an inclined surface formed on the side facing the outer circumferential wall portion, and the guide portion is provided in the area where the inclined surface is formed.

3. The sanitary tissue storage container according to claim 2, characterized in that the convex portion is fitted into the fitting portion in a state of close contact with the bottom surface and both sides of the fitting portion.

4. The sanitary tissue storage container according to claim 2, characterized in that the upper part of the container body and the lower part of the container body are formed of the same material.

5. The sanitary tissue storage container according to claim 4, characterized in that the convex portion is fitted into the fitting portion in a state of close contact with the bottom surface and both sides of the fitting portion.

6. The sanitary tissue storage container according to any one of claims 1 to 5, characterized in that the groove portion having the fitting portion and the guiding portion is provided on at least the left and right side surfaces of the container body.

7. A locking mechanism is provided on the front of the upper part of the container body. The front surface of the lower part of the container body is provided with an engaging projection. A sanitary tissue paper storage container according to any one of claims 1 to 5, characterized in that the locking portion engages with the engaging projection when the convex portion fits into the recessed groove and the storage space is shielded.

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