JP5503249B2 - Mixing container - Google Patents

Description

  The present invention relates to a mixing container, and more particularly to a mixing container suitable for mixing foaming compositions such as foaming hair treatment agents.

Some hair treatment agents used for dyeing (dying) or decoloring hair are prepared by mixing raw materials just before use. For the preparation of this type of hair treatment agent,
Usually, a mixing container is used for reasons such as easy mixing of raw materials and easy removal of contents. This type of mixing container generally comprises a container for storing raw materials and the like, and a lid that covers the mouth of the container in order to seal the container.

  For example, when a foaming (foam-like) hair treatment agent is prepared using the mixing container, the following steps are performed. First, raw materials such as liquid are introduced into the container from the respective mouths. Next, a lid is attached and fixed to the container in which the raw material is charged, and the container is closed and sealed. After that, with the lid attached to the container, the mixing container is shaken by hand to mix the raw materials. After mixing, remove the lid from the container and take out the contents (mixture) from the container.

  This type of mixing container is required to have a sealing property (sealing structure) for preventing the contents from leaking out during mixing.

  By the way, conventionally, what is shown by patent document 1 is known as a storage container of a foamable composition, for example. In this container, the inner side (inner edge) and the outer side (outer edge) of the mouth (bottle mouth) of the container are elastically clamped by two ring-shaped elastic members (shielding means) provided on the lid. With such a structure, the sealing performance in the storage container is ensured.

Registered Utility Model No. 3058167

  When a foaming composition such as a foaming hair treatment agent is mixed in the mixing container, gas is generated from the contents to increase the pressure in the mixing container, and when the lid is removed from the container (when opened), Gas and other contents may blow out violently from the gap between the lid and the container. In addition, the contents may hang down from the gap. For this reason, this type of mixing container is required to suppress leakage of contents other than gas, particularly violent scattering of contents, at the time of opening, as well as hermeticity at the time of mixing.

  Even if the configuration (mechanism) of a conventional storage container or the like shown in Patent Document 1 is adopted for a mixing container, the sealing property (air tightness) at the time of storage can be secured, but other than the gas at the time of opening The leakage of contents could not be effectively prevented, which was a problem.

  An object of the present invention is to provide a mixing container in which leakage of contents other than gas is suppressed when a lid is removed.

The mixing container according to the present invention is as follows.
<1> A container having an annular wall mouth portion that has an inner diameter that increases toward the opening and includes a container-side screw portion on the outer peripheral surface, and a housing portion that is connected to the annular wall mouth portion and accommodates contents.
The ceiling, and the outer diameter of the tip side that extends downward from the peripheral edge of the ceiling portion is smaller than the opening and is set to be equal to or larger than the inner diameter of the inner side of the annular wall mouth portion, and the annular shape from the tip side. The upper end surface and the outer peripheral surface of the annular wall mouth portion are covered, including a central lid portion including a skirt wall portion fitted in the wall mouth portion, and a lid side screw portion screwed into the inner peripheral surface with the container side screw portion. A lid having an outer skirt lid portion extended from the periphery of the central lid portion,
When the lid is screwed and attached to the container, the front side of the skirt wall part is in close contact with the inner peripheral surface of the annular wall mouth part, and the main side is between the inner side of the container and the inner side of the central lid part. A mixing container, wherein a space is formed, and a subspace is formed between the inside of the container and the outside of the central lid.

  <2> The mixing container according to <1>, wherein a front side of the skirt wall portion of the central lid portion is curved outward and has a diameter increased.

  <3> The skirt wall portion of the central lid portion has a root-side contact portion that is in close contact with the inner peripheral surface of the annular wall mouth portion and covers the sub space when the lid is screwed and attached to the container. The mixing container as described in <1> or <2>.

  <4> A small-diameter section whose annular wall mouth is smaller than the outer diameter of the front side of the skirt wall, and a large-diameter section that is adjacent to the small-diameter section and is larger than the outer diameter of the front side of the skirt wall The mixing container according to any one of <1> to <3>, in which a step is formed between the small-diameter section and the large-diameter section.

  <5> The small-diameter area portion is located above the portion where the tip side of the skirt wall portion, which has been lowered most when the lid is screwed and attached to the container, is in close contact with the inner peripheral surface of the annular wall mouth portion. The mixing container according to <4>, further including a groove that allows the main space and the subspace to communicate with each other when being removed from the container.

  <6> The mixing container according to any one of <1> to <5>, wherein the content is foamable.

  <7> The mixing container according to <6>, wherein the foamable content is a hair treatment agent.

  <8> The mixing container according to any one of <4> to <7>, wherein an inner diameter of the large-diameter section is substantially uniform.

  <9> The above-described <1> to <1>, in which the housing portion includes a bottom portion and a cylindrical housing wall portion erected from the periphery of the bottom portion, and the annular wall mouth portion is erected from the housing wall portion. 8>. The mixing container according to any one of 8>.

  <10> The mixing container according to any one of <1> to <9>, wherein the container and the lid are each made of a flexible plastic material.

  <11> The container-side screw portion is formed of a screw protrusion including a section inclined with respect to the circumferential direction from the base end to the tip, and the lid-side screw portion is formed of a screw protrusion. The mixing container as described in any one.

  <12> The mixing container according to any one of <1> to <11>, wherein the lid is disposed on the lower side and the container is disposed on the upper side.

  In the mixing container of the present invention, leakage of contents other than gas is suppressed when the lid is removed.

It is a side view of the mixing container which concerns on one Embodiment of this invention. It is a side view of a container. It is a top view of the lid seen from the inside. It is explanatory drawing which represented typically the state raised along the container, rotating the cover of the mixing container which was attached to the container and fell most. It is explanatory drawing which represented typically the state raised along the container, further rotating the lid | cover of the mixing container shown by FIG. It is explanatory drawing which represented typically the state raised along the container, turning the cover of the mixing container which concerns on other embodiment attached to the container and fell most. It is explanatory drawing which represented typically the structure of the mixing container which concerns on other embodiment. It is a perspective view of the container which comprises the mixing container shown by FIG. It is explanatory drawing which represented typically the structure of the mixing container which concerns on other embodiment.

  Hereinafter, embodiments of the mixing container of the present invention will be described with reference to the drawings. In addition, the mixing container of this invention is not limited to embodiment illustrated in this specification.

FIG. 1 is a side view of a mixing container according to an embodiment. As shown in FIG. 1, the mixing container 1 includes a container 2 and a lid 3 that can be attached to and detached from (attached to and removed from) the container 2.
FIG. 1 shows the mixing container 1 with the lid 3 screwed onto the container 2. In addition, the mixing container 1 of FIG. 1 is partially cut away, and its cross section is shown. FIG. 2 is a side view of the container 2, and FIG. 3 is a plan view of the lid 3 as viewed from the inside. In addition, a part of the container 2 shown in FIG. 2 is cut away, and a cross section of the part is shown.

  As shown in FIG. 1 and FIG. 2, the container 2 is a cup-shaped container whose inner diameter increases toward the upper side (opening), and an annular wall is formed at the mouth portion which is the upper edge of the container 2. It has a mouth part 21. The annular wall mouth portion 21 is a wall having a substantially circular (annular) cross section in the lateral direction, and an opening 22 is provided inside the upper end portion for use in feeding raw materials and taking out contents.

  As shown in FIG. 2, the annular wall mouth portion 21 is divided into a small-diameter area portion 23 and a large-diameter area portion 24 depending on the difference in inner diameter. The small-diameter section 23 is disposed on the lower side (back side) of the annular wall mouth portion 21, and the large-diameter section 24 is disposed adjacent to the small-diameter section 23 on the opening 22 side. That is, the inner diameter on the back side (lower side) of the annular wall mouth portion 21 is smaller than the inner diameter of the upper end portion (the diameter of the opening portion 22).

  The annular wall mouth portion 21 is provided with a plurality of screw protrusions 25 as container-side screw portions 25 on the outer peripheral surface thereof. Each screw protrusion 25 is elongated and protrudes on the outer peripheral surface of the annular wall mouth portion 21. Each screw protrusion 25 includes a section (portion) that is inclined with respect to the circumferential direction from the proximal end 26 to the distal end 27. In particular, the tip 27 of the screw protrusion 25 of the present embodiment is directed toward the opening 22 and reaches the upper end of the annular wall mouth 21. The inclination directions of the screw protrusions 25 are aligned to be the same. The base end 26 of the screw protrusion 25 of the present embodiment is a position that engages with a lid-side screw portion 35 (screw protrusion 35), which will be described later, when the lid 3 is screwed and attached to the container 2. is there.

Note that the screw ridge portion 25 of the present embodiment further includes a sub ridge portion 28 that is elongated from the base end 26, and the screw ridge portion 25 and the sub ridge portion 28 are continuous. . The sub-projection portion 28 also swells in an elongated and convex shape on the outer peripheral surface of the annular wall mouth portion 21 and is inclined in the same manner as the screw protrusion portion 25 with respect to the circumferential direction.
The thread groove 125 is formed by a series of projecting ridges composed of the thread ridges 25 and the sub ridges 28 being adjacent to each other. That is, the screw groove portion 125 is formed by the continuous protrusions adjacent to each other. The screw groove portion 125 is also included in the container side screw portion 25.

  The screw protrusions 25 are arranged so as to surround the annular wall mouth part 21 and are arranged at a predetermined interval from each other. In the present embodiment, four screw protrusions 25 are formed on the outer peripheral surface of the annular wall mouth portion 21. In addition, what is necessary is just to select suitably the number of the screw | thread protrusion parts 25 according to the objective, for example, you may use 2-5 screw protrusion parts 25. FIG. Further, the interval between the screw protrusions 25 may be appropriately selected according to the purpose, but the interval between the screw protrusions 25 is preferably equal. In the present embodiment, four screw protrusions 25 are arranged at equal intervals on the outer peripheral surface of the substantially circular annular wall mouth portion 21. And the position of the base end 26 of each screw | thread protrusion 25 is set so that it may line up with respect to the circumferential direction. That is, the position of the base end 26 of each screw protrusion 25 is aligned at the same height from the lower side of the annular wall opening 21.

  In other embodiments, the position of the base end 26 of each screw protrusion 25, the position of the tip 27, the inclination direction, the inclination angle (gradient), the length, the strength, the shape (outer diameter and cross section), etc. The conditions of the strip 25 are appropriately selected according to the purpose.

  The annular wall mouth portion 21 of the present embodiment is further formed with a peripheral portion 29 on the outer peripheral surface thereof. The circumferential strip portion 29 is disposed below the screw projection strip portion 25 and is elongated in a convex shape along the circumferential direction. The peripheral portion 29 improves the strength (rigidity) of the container 2, particularly the strength (rigidity) on the lower side of the annular wall mouth portion 21. Note that one end (base end) of the auxiliary protrusion 28 is connected to the peripheral portion 29.

  The base end 26 of the screw protrusion 25 is provided with a stop fixing portion 200 that is used when the lid 3 is fixed to the container 2 and stops the movement of the lid 3.

  As shown in FIGS. 1 and 2, the container 2 includes an accommodating portion 201 that is connected to the annular wall mouth portion 21 below the annular wall mouth portion 21. This accommodating part 201 consists of the bottom part 202 and the cylindrical accommodating wall part 203 standingly arranged from the periphery of this bottom part 202, and accommodates contents, such as a raw material before mixing, and a mixture, in the inside. The shape of the bottom part 202 of this embodiment is substantially circular. The accommodation wall 203 has a cylindrical shape with an inner diameter that increases from the bottom 202 side to the upper side. The shape of the accommodating portion 201 is not particularly limited as long as the object of the present invention can be achieved, and is appropriately selected according to the object.

  As shown in FIGS. 1 and 3, the lid 3 includes a central lid portion 31 and an outer skirt lid portion 33.

  The central lid portion 31 has a ceiling portion 331 and a skirt wall portion 32.

  The ceiling portion 331 has a substantially hemispherical outer shape (so-called dome shape), and the inner surface shape is also substantially hemispherical. That is, the ceiling part 331 is shaped like a substantially hemispherical vessel with the mouth side facing downward. In addition, as FIG. 1 shows, the top part of the ceiling part 331 is processed flat. For this reason, the lid 3 is easily allowed to rest on the floor surface with the inside facing upward.

  The skirt wall 32 is a cylindrical (skirt-shaped) wall that extends downward from the periphery of the ceiling 331. That is, the ceiling portion 331 and the skirt wall portion 32 constitute a central lid portion 31 that is one vessel with the mouth side (front side) facing downward. In this specification, for convenience of explanation, the central lid portion 31 which is one container is divided into a ceiling portion 331 and a skirt wall portion 32.

The front side of the skirt wall portion 32 is curved outward and has a larger diameter. This front side portion is particularly referred to as a front side annular contact portion 34. The outer diameter of the front-side annular contact portion 34 is set to be smaller than the diameter of the opening 22. Moreover, the outer diameter of the front-side annular contact portion 34 is set to be equal to or larger than the inner diameter on the back side of the annular wall mouth portion 21. The front-side annular contact portion 34 can be brought into contact (contacted) with the inner peripheral surface on the back side of the annular wall mouth portion 21 (the inner peripheral surface of the small-diameter area portion 23).
The front annular contact portion 34 may be formed integrally with the skirt wall portion 32 or may be formed of a separate part that is retrofitted to the skirt wall portion 32. Moreover, the front side annular contact part 34 may be manufactured using the same material as the skirt wall part 32, and may be manufactured using another material. For example, when the skirt wall portion 32 is made of polypropylene, an elastic member such as silicon rubber may be used as the material of the front annular contact portion 34.

  As shown in FIG. 1, when the lid 3 is attached to the container 2, the skirt wall section 32 is inserted into the annular wall mouth portion 21 from the opening 22 of the container 2 and stored. At that time, the front side of the skirt wall portion 32 is fitted into the annular wall mouth portion 21 and is in contact with the inner peripheral surface on the back side of the annular wall mouth portion 21 (the inner peripheral surface of the small diameter section portion 23).

  Here, the small diameter section 23 and the large diameter section 24 of the annular wall mouth portion 21 described above will be further described. As shown in FIG. 2, the small-diameter area portion 23 is a portion where the inner diameter of the annular wall mouth portion 21 is equal to or smaller than the outer diameter of the front-side annular contact portion 34 of the skirt wall portion 32. On the other hand, the large-diameter area portion 24 is a portion where the inner diameter of the annular wall mouth portion 21 is larger than the outer diameter of the front-side annular contact portion 34 of the skirt wall portion 32. The “outer diameter of the front-side annular contact portion 34” here refers to the outer diameter (maximum diameter) of the largest portion of the front-side annular contact portion 34.

  In addition, as the front side annular contact part 34 of the skirt wall part 32, the front-end | tip itself of the skirt wall part 32 may be sufficient, and the location located in a root side rather than a front-end | tip may be sufficient. However, when the skirt wall portion 32 on the base side from the tip is used as the front-side annular contact portion 34, the outer diameter of the front side of the front-side annular contact portion 34 is outside the front-side annular contact portion 34. It is necessary to make it smaller than the diameter.

  The inner diameter of the small-diameter section 23 may be set to gradually increase toward the upper side (opening 22 side) or may be set to be constant (uniform). In addition, the inner diameter of the small-diameter section 23 may be rapidly changed as it approaches the adjacent large-diameter section 24, and a step 204 in the small-diameter section 23 may be provided between the large-diameter section 24.

  The inner diameter of the large-diameter section 24 may be set to gradually increase toward the upper side (opening 22 side), or may be set to be constant (uniform). The step 204 in the large diameter section 24 may be formed by setting the inner diameter of the large diameter section 24 to be constant. The step 204 may be formed so as to extend over both the small diameter section 23 and the large diameter section 24.

  The skirt wall portion 32 of the central lid portion 31 of the present embodiment has a root-side annular shape so that when the lid 3 is screwed and attached to the container 2, the root side can be in close contact with the inner peripheral surface of the annular wall mouth portion 21. A contact portion 36 is provided. The root-side annular contact portion 36 includes an annular convex portion (ridge portion) formed on the outer peripheral surface of the skirt wall portion 32. The root-side annular contact portion 36 may be formed integrally with the skirt wall portion 32 or may be a separate part that is retrofitted to the skirt wall portion 32. Moreover, the root side annular contact part 36 may be manufactured using the same material as the skirt wall part 32, and may be manufactured using another material. For example, when the skirt wall portion 32 is made of polypropylene, an elastic member such as silicon rubber may be used as the material of the root side annular contact portion 36.

In this embodiment, the position and outer diameter of the root-side annular contact portion 36 are set so as to be in close contact with the inner peripheral surface of the upper end portion of the annular wall mouth portion 21. Here, “the outer diameter of the root-side annular contact portion 36” refers to the outer diameter (maximum diameter) of the largest portion in the root-side annular contact portion 36.
In another embodiment, the position of the root side annular contact portion 36 may be on the far side of the upper end portion (opening portion 22) of the annular wall mouth portion 21, for example.

  The outer skirt lid portion 33 extends from the peripheral edge of the central lid portion 31 so as to cover the upper end surface of the annular wall mouth portion 21 and the outer peripheral surface of the annular wall mouth portion 21. In the present embodiment, the projection extends in the horizontal direction from the peripheral edge of the connection portion between the ceiling portion 331 and the skirt wall portion 32, and then is curved and extended downward.

  The outer skirt lid portion 33 is engaged with and screwed with the screw protrusion 25 (container side screw portion) on the inner circumferential surface of the portion covering the outer circumferential surface of the annular wall mouth portion 21, and the lid side screw portion 35. The four screw projections 35 are provided. The screw projection 35 is formed on the inner peripheral surface of the outer skirt lid portion 33 to be elongated along the circumferential direction so as to rise in a convex shape. As shown in FIG. 3, the screw protrusions 35 are arranged at equal intervals corresponding to the positions of the screw protrusions 25 to be engaged with and screwed with the screw protrusions 25. Yes.

  The lid 3 is attached to the annular wall mouth portion 21 of the container 2 and fixed (screwed). When attaching the lid 3 to the container 2, first, the lid 3 is placed in the container 2 so that the skirt wall portion 32 of the central lid portion 31 fits from the opening 22 and the outer skirt lid portion 33 covers the annular wall mouth portion 21. Place against. Next, when the lid 3 is moved in one direction (clockwise), the outer skirt lid portion 33 turns around the outer side of the annular wall mouth portion 21, and each screw projection 35 is located on the lower side (lower surface side) of the screw protrusion 25. , That is, along the screw groove portion 125 as the container-side screw portion 25 formed by the screw protrusion 25 and starts to descend. At this time, the central lid portion 31 is lowered so as to approach the inner peripheral surface of the annular wall mouth portion 21. Thereafter, the screw protrusion 35 is guided to the shape of the inclined screw protrusion 25 and reaches the base end 26 of the screw protrusion 25. As described above, the stop fixing portion 200 is provided at the base end 26. The stop fixing portion 200 has a sloped surface on the lower surface that presses the screw projection 35 that moves along the lower side of the screw protrusion 25 further downward. The stop fixing part 200 presses the screw projection 35 from the upper side (upper surface side) with this inclined surface, and fixes the lid 3 to the container 2.

  When the screw projection 35 reaches the base end 26 (stop fixing portion 200) of the screw protrusion 25, the position of the lid 3 is lowered most with respect to the container 2. That is, at this time, the front-side annular contact portion 34 of the skirt wall portion 32 is most lowered with respect to the container 2 and pressed against the inner peripheral surface of the small-diameter area portion 23 of the annular wall mouth portion 21 without any gap. The length of the skirt wall portion 32 (the position of the front annular contact portion 34) is such that the front annular contact portion 34 of the small diameter section 23 of the annular wall mouth portion 21 when the lid 3 is lowered to the container 2 most. It is set so that it can be in close contact with the inner peripheral surface.

  In addition, when the lid 3 is screwed and attached to the container 2 from the location of the opening 22 in the container 2 in the present embodiment, and the skirt wall part 32 is moved down most, the front side (front side) of the skirt wall part 32 The portion up to the place where the annular contact portion 34) is in contact with the inner peripheral surface of the container 2 becomes the annular wall mouth portion 21. The lower part becomes the accommodating part 201.

  In this way, when the lid 3 is attached to the container 2 and descends most, the central lid portion 31 is disposed so as to be placed inside the container 2, and a sealed space 4 is formed between the central lid portion 31 and the container 2. It is formed. In the present specification, this space 4 is particularly referred to as a main space 4. Contents such as raw materials are accommodated in the main space 4.

  Furthermore, in the present embodiment, when the lid 3 is lowered most, the base side of the skirt wall portion 32 (the base side annular contact portion 36) is spaced from the inner peripheral surface of the large-diameter section 24 of the annular wall mouth portion 21. Adhere without any problems. That is, the position and the outer diameter of the root-side annular contact portion 36 are such that the root-side annular contact portion 36 can be in close contact with the inner peripheral surface of the large-diameter section 24 of the annular wall mouth portion 21 when the lid 3 is lowered most. Set to Therefore, in the present embodiment, as shown in FIG. 1, a gap (space) 5 is also formed between the outer peripheral surface of the skirt wall portion 32 and the inner peripheral surface of the annular wall mouth portion 21. In the present specification, this space 5 is particularly referred to as a subspace 5. The sub space 5 is formed inside the container 2 (inside the annular wall mouth portion 21). This subspace 5 is sealed when the lid 3 is lowered most. At this time, the upper portion of the sub space 5 is separated from the external space by the root side annular contact portion 36 that is in close contact with the inner peripheral surface of the large diameter section 24 of the annular wall mouth portion 21.

  Further, when the lid 3 is attached to the container 2 and is most lowered with respect to the container 2, the main space 4 and the subspace 5 are in contact with the inner peripheral surface of the small-diameter area portion 23 of the annular wall mouth portion 21. It is divided and divided by a side annular contact portion 34.

  The outer diameters of the skirt wall portions 32 other than the front-side annular contact portion 34 and the root-side annular contact portion 36 are appropriately set according to the size (volume) of the target subspace 5. The outer diameter of this portion in the present embodiment is set to be smaller than the outer diameters of the front-side annular contact portion 34 and the root-side annular contact portion 36.

  It should be noted that the inner diameter of the large-diameter section 24 is made uniform so that the root-side annular contact section 36 can easily come into close contact with the inner peripheral surface at the upper end of the annular wall mouth portion 21 (large-diameter section 24). The distance between the annular wall mouth portion 21 and the skirt wall portion 32 may be reduced.

  As described above, the auxiliary protrusions 28 are also formed on the outer peripheral surface of the annular wall mouth portion 21 of the present embodiment. When the lid 3 is attached to the container 2 by the auxiliary protrusion 28, the screw projection 35 moves along the upper side (upper surface side). Therefore, the screw protrusion 35 is easily guided to the screw protrusion 25 that is disposed adjacent to the base end side of the sub protrusion 28.

  In addition, on the outer peripheral surface of the annular wall mouth portion 21 of the present embodiment, a contact portion 205 is protruded below the base end 26 of the screw protrusion 25. The screw protrusion 35 hits the abutting portion 205 and collides with it, so that the screw protrusion 35 does not pass the stop fixing portion 200 at the base end 26 of the screw protrusion 25.

  Note that the position of the base end 26 of the screw protrusion 25 can be adjusted by changing the position of the contact portion 205. That is, the position of the abutting portion 205 is lower than the one protruding portion formed by connecting the screw protruding portion 25 and the auxiliary protruding portion 28 (on the auxiliary protruding portion 28 side). ) Or the upper side (screw protrusion 25 side) (see FIG. 2).

  Examples of the material constituting the mixing container 1 include known plastic materials such as polyethylene, polypropylene, and styrene, and materials that are particularly excellent in flexibility and durability are preferable. In addition, other materials such as metal and glass may be used as the material of the mixing container 1 as long as the object of the present invention can be achieved. The mixing container 1 can be manufactured using a known processing technique. The container 2 and the lid 3 may be made of the same material or different materials.

  The mixing container 1 is used for preparation of hair treatment agents such as cosmetics, decoloring agents, and hair dyes, for example. In particular, the mixing container 1 is suitable for preparation (mixing) of foamable compositions such as foamable hair treatment agents (foam-like hair treatment agents). Examples of contents other than the hair treatment agent include drugs, paints, and foods. These contents are mixed and stored in the sealed space of the mixing container 1, that is, in the main space 4 formed by the container 2 and the central lid portion 31.

  For example, when a foaming hair treatment agent is prepared from one powdery agent and two liquid agents using the mixing container 1, first, each raw material (one agent and two agents) is put into the container 2 from the opening 22. Into the storage unit 201. Thereafter, the lid 3 is fixed to the container 2 and the inside of the mixing container 1 is sealed. Next, the raw materials are mixed by shaking the sealed mixing container 1 by hand. In addition, since the container 2 and the lid 3 of the mixing container 1 are screwed and fixed to each other, the lid 3 does not come off the container 2 even if shaking is applied to the mixing container 1 by shaking it by hand. . After mixing, the lid 3 is rotated in the other direction (counterclockwise), removed from the container 2, and the contents (mixture) are taken out from the container 2.

  In the mixing container 1 of this embodiment, when the lid 3 is removed from the container 2, the contents other than the gas are prevented from leaking outside through the gap (gap) between the container 2 and the lid 3. . Hereinafter, the principle of suppressing leakage of contents other than gas from the mixing container 1 when the lid 3 is removed from the container 2 will be described with reference to FIGS. 4 and 5.

FIG. 4 is an explanatory view schematically showing a state where the lid of the mixing container which is attached to the container and is lowered most is raised along the container. As shown in FIG. 4, when the lid 3 is moved counterclockwise, the screw projection 35 is guided along the screw protrusion 25 and the lid 3 moves upward. Then, first, the root-side annular contact portion 36 of the skirt wall portion 32 is moved away from the inner peripheral surface of the large-diameter area portion 24 of the annular wall mouth portion 21, and the close contact therebetween is eliminated. Therefore, the sealing of the sub space 5 is also eliminated.
On the other hand, the front-side annular contact portion 34 of the inner skirt wall portion 32 moves upward while sliding on the inner peripheral surface of the small-diameter area portion 23 of the annular wall mouth portion 21. At this time, the front annular contact portion 34 and the inner peripheral surface of the small diameter section 23 remain in close contact with each other, and the main space 4 remains sealed.

FIG. 5 is an explanatory view schematically showing a state where the lid 3 of the mixing container shown in FIG. 4 is raised along the container 2 while further rotating. As shown in FIG. 5, when the lid 3 is further moved counterclockwise, the screw projection 35 is guided along the screw protrusion 25 and the lid 3 further moves upward. In addition, the mixing container 1 of FIG. 5 is shown as the container 2 rotated compared with what is shown by FIG. 4 for convenience of explanation.
During this movement, the main space 4 is kept sealed while the front-side annular contact portion 34 of the skirt wall portion 32 passes through the small-diameter section 23 in sliding contact. However, when the front-side annular contact portion 34 enters the large-diameter section 24, the front-side annular contact portion 34 is separated from the inner peripheral surface of the annular wall mouth portion 21, so that a substantially circular gap is formed therebetween. The main space 4 and the sub space 5 are connected via the gap. Then, the gas in the main space 4 enters the sub space 5 through the gap, passes through the sub space 5, and further passes between the outer skirt lid portion 33 and the annular wall mouth portion 21, It is discharged outside. The screw groove portion 125 of the annular wall mouth portion 21 is also used as a gas discharge passage. The front annular contact portion 34 passes through the large-diameter section 24 in a state of being close to the inner peripheral surface of the large-diameter section 24. Further, when the lid 3 is turned, the lid 3 is separated from the container 2.

  As described above, when the lid 3 is raised and the gas is discharged, the contents (liquid, foam component, etc.) other than the gas may partially enter the subspace 5 together with the gas. However, other contents include the outer peripheral surface of the skirt wall portion 32 including the front-side annular contact portion 34, the inner peripheral surface of the annular wall mouth portion 21, the root-side annular contact portion 36, and the upper end surface of the annular wall mouth portion 21. The covering skirt cover 33 and the like are bounced back as an obstacle, and further returned to the main space 4 by its own weight in the sub space 5, so that it is retained in the sub space 5. In this way, leakage of contents other than gas to the outside of the mixing container 1 (container 2) is suppressed.

  Next, a gas discharge mechanism in the mixing container 1A of another embodiment will be described with reference to FIG. FIG. 6 is an explanatory diagram schematically showing a state where the lid of the mixing container according to another embodiment, which is attached to the container and is most lowered, is raised along the container while turning the lid. The basic configuration of the mixing container 1A shown in FIG. 6 is the same as that of the mixing container 1 shown in FIG. Therefore, about the same structure as the mixing container 1 about each structure of 1 A of mixing containers, the same code | symbol is attached | subjected in FIG. 6, and those detailed description is abbreviate | omitted.

  In the mixing container 1 </ b> A, when the lid 3 is attached to the container 2 and descends most with respect to the container 2, a sealed main space 4 and subspace 5 are formed as in the mixing container 1. When the lid 3 of the mixing container 1A is rotated and raised, as shown in FIG. 6, the tip-side annular contact portion 34A is located within the annular wall mouth portion 21A before the root-side annular contact portion 36A. Get away from the surface. The root side annular contact portion 36A moves upward while being in close contact with the inner peripheral surface of the annular wall mouth portion 21A (the inner peripheral surface of the large diameter section portion 24A). That is, the mixing container 1A has a skirt wall portion 32A different from the mixing container 1 shown in FIG. The length of the skirt wall portion 32A is set shorter than the length of the skirt wall portion 32 of the mixing container 1, and the length (width) of the root side annular contact portion 36A is set longer than that of the mixing container 1. Has been. Further, the inner diameter of the large diameter section 24A of the annular wall mouth portion 21A is set to be substantially constant, and the inner wall surface of the large diameter section 24 is substantially vertical.

  The mixing container 1A having such a configuration can also effectively suppress leakage of contents other than gas to the outside. This is because even if gas is generated from the contents (for example, foamy hair treatment agent) in the main space 4 and the pressure in the main space 4 increases, the main space 4 and the sub space 5 are connected and integrated. This is because the entire volume for storing the contents is expanded, and the inside of the mixing container 1 can be decompressed to some extent. Note that an elastic material such as silicon rubber may be used as the material of the root-side annular contact portion 36A to make the root-side annular contact portion 36A closely contact the inner peripheral surface of the annular wall mouth portion 21A.

Further, a mixing container 1B according to another embodiment will be described with reference to FIGS. FIG. 7 is an explanatory view schematically showing the configuration of a mixing container according to another embodiment. FIG. 8 is a perspective view of a container constituting the mixing container shown in FIG. In this mixing container 1B, a groove 206 is further provided in the small diameter section 23 of the mixing container 1 shown in FIG. As shown in FIG. 8, a plurality of the grooves 206 are provided in the small diameter section 23 of the annular wall mouth portion 21 of the container 2 so as to engrave the inner peripheral surface thereof into a concave shape.
This groove 206 is a part of the small-diameter section 23 where the front annular contact portion 34 is in contact (contacted) so that the main space 4 is sealed when the lid 3 is attached to the container 2 and is lowered most. It is preferable to be provided at least on the upper side (opening 22 side). That is, this portion is a portion through which the front annular contact portion 34 passes while sliding, when the lid 3 is removed.
In the mixing container 1 </ b> B having such a groove 206, when the lid 3 is removed from the container 2 and the front annular contact portion 34 passes through the small diameter section 23 including the groove 206, the front annular contact portion 34 has a large diameter. Before entering the area 24, the main space 4 and the subspace 5 are connected via the groove 206. Then, contents such as gas gradually start to move from the main space 4 to the sub space 5. By providing such a groove 206 in the container 2 as appropriate, the amount of contents (gas and other things) moving from the main space 4 to the subspace 5 can be adjusted.

  The mixing container 1 etc. of each embodiment can adjust the distance of the center cover part 31 and the container 2 easily by rotating the cover 3 by hand etc. clockwise or counterclockwise. Therefore, the adjustment of the gas discharge amount and the content leakage prevention effect can be appropriately adjusted by the rotation of the lid 3.

  As a mixing container which concerns on other embodiment, the structure of the container 2 of the mixing container 1 of the said embodiment is employ | adopted as a lid | cover, and the structure of the lid | cover 3 may be employ | adopted as a container. That is, the mixing container of this embodiment has a configuration in which the function of the container 2 and the function of the lid 3 in the mixing container 1 of the above embodiment are interchanged. Even if it is a mixing container of such a structure, when removing a lid | cover, the leakage of contents other than gas is suppressed. This is because the portion corresponding to the outer skirt lid portion 33 functions as a receiving tray in the container having the configuration of the lid 3, and the receiving tray holds contents other than the gas overflowing from the container to the outside. . This mixing container can be expressed as follows.

  FIG. 9 is an explanatory view schematically showing the configuration of a mixing container 1C according to still another embodiment. As shown in FIG. 9, the mixing container 1 </ b> C has a small-diameter area portion 23 </ b> C that is raised in a convex shape on the inner peripheral surface of the annular wall mouth portion 21 </ b> C. As in this mixing container 1C, a container 2C in which the inner diameter of the accommodating portion 201C is larger than the small diameter section 23C of the annular wall mouth portion 21C may be used. The inner diameter of the large diameter section 24C of the annular wall mouth portion 21C is uniform. The skirt wall portion 32 has a cylindrical shape on the tip side, and a tip-side annular contact portion 34 </ b> C on the root side with respect to the tip.

  In other embodiments, unlike the mixing container 1 or the like, the container-side screw portion is composed of a protrusion formed so as to spiral around the outer peripheral surface of the annular wall mouth portion of the container, and the lid-side screw. The portion may be engaged with and screwed with the protruding portion.

1, 1A, 1B, 1C Mixing container 2 Container 21 Annular wall mouth part 22 Opening part 23 Small diameter area part 24 Large diameter area part 25 Screw protrusion (container side screw part)
125 Screw groove (container side screw)
26 Base end 27 of the screw ridge portion 27 Tip 28 of the screw ridge portion Sub ridge portion 29 Peripheral portion 201 receiving portion 202 bottom portion 203 receiving wall portion 204 step 205 contact portion 206 groove 3 lid 31 central lid portion 331 ceiling portion 32 Skirt wall portion 33 Outer skirt lid portion 34 Front side annular contact portion 35 Screw protrusion (lid side screw portion)
36 Root side annular contact part
4 Main space 5 Sub space

Claims (5)

A container having an annular wall mouth portion whose inner diameter increases toward the opening and includes a container-side screw portion on the outer peripheral surface, and a housing portion connected to the annular wall mouth portion and housing the contents;
The ceiling, and the outer diameter of the tip side that extends downward from the peripheral edge of the ceiling portion is smaller than the opening and is set to be equal to or larger than the inner diameter of the inner side of the annular wall mouth portion, and the annular shape from the tip side. The upper end surface and the outer peripheral surface of the annular wall mouth portion are covered, including a central lid portion including a skirt wall portion fitted in the wall mouth portion, and a lid side screw portion screwed into the inner peripheral surface with the container side screw portion. A lid having an outer skirt lid portion extended from the periphery of the central lid portion,
When the lid is screwed and attached to the container, the front side of the skirt wall part is in close contact with the inner peripheral surface of the annular wall mouth part, and the main side is between the inner side of the container and the inner side of the central lid part. A sub-space is formed between the inner side of the container and the outer side of the central lid part to hold the contents other than the gas blown out from the main space when the lid is removed from the container .
The skirt wall portion has a root side contact portion that covers the subspace in close contact with the inner peripheral surface of the annular wall mouth when the lid is screwed and attached to the container on the outer peripheral surface,
When removing the lid from the container, the mixing container is characterized in that the tip side of the skirt wall part is separated from the inner peripheral surface of the annular wall mouth part before the base side contact part.   The mixing container according to claim 1, wherein the front side of the skirt wall portion of the central lid portion is curved outward and has a larger diameter. The annular wall mouth portion has a small diameter area portion whose inner diameter is equal to or smaller than the outer diameter of the front side of the skirt wall portion, and a large diameter area portion adjacent to the small diameter area portion and larger than the outer diameter of the front side of the skirt wall portion. a mixing container according to claim 1 or 2 step is formed between the small diameter section portion and the large diameter sections section. When the lid is screwed onto the container, the small-diameter section is removed from the container above the point where the tip side of the skirt wall that has been lowered most closely contacts the inner peripheral surface of the annular wall mouth. The mixing container according to claim 3 , comprising a groove that sometimes communicates the main space and the subspace. The mixing container according to any one of claims 1 to 4 , wherein the content is foamable.

Images