JP4850632B2 - Discharge container - Google Patents

Description

  The present invention relates to a discharge container that discharges contents contained in a container main body to the outside.

  The aforementioned discharge container is used as a container for containing cream, ointment, gel-like contents used in cosmetics, pharmaceuticals, and the like. Such a discharge container includes, for example, a container body having a bottomed cylindrical shape, a fixed partition plate that partitions the internal space of the container body, and a rotary partition plate juxtaposed with the fixed partition plate, as shown in Patent Document 1, for example. And a lid having a top plate portion that is in contact with the upper ends of the fixed partition plate and the rotary partition plate.

Then, a storage chamber is defined by the bottom surface of the container body, the fixed partition plate, the rotary partition plate, and the top plate portion, and the volume of the storage chamber is reduced by rotating the rotary partition plate, so that the contents in the storage chamber can be reduced. It is set as the structure discharged from the discharge hole formed in the board part.
Japanese Utility Model Publication No. 62-8839

  By the way, in the above-described discharge container, the volume of the storage chamber is reduced by rotating the rotary partition plate, and the contents are discharged from the discharge hole. A fixed amount of contents cannot be discharged. In particular, the airtightness at the radially outer end of the rotating partition plate that is in sliding contact with the inner peripheral surface of the container body becomes a problem.

  Here, in order to improve hermeticity, it can be considered that the radially outer end of the rotating partition plate is strongly pressed against the inner peripheral surface of the container body. However, in this case, the frictional resistance between the radially outer end of the rotating partition plate and the inner peripheral surface of the container main body becomes large, and it becomes difficult to rotate the rotating body to discharge the contents. The operability of is inferior.

  The present invention has been made in view of the above-described circumstances, and improves the hermeticity between the peripheral edge portion of the rotating partition plate and the inner surface of the container body, and can discharge the contents reliably. The purpose is to provide.

In order to solve this problem, the discharge container according to the present invention has a bottomed cylindrical shape extending along the axis, and extends radially inward from a support column and an inner peripheral surface standing from the bottom surface along the axis. A container main body having a fixed partition plate that extends toward the surface, and a shaft cylinder piece that is rotatably fitted to the support column, and a rotation partition plate that extends radially outward from the outer peripheral surface of the shaft cylinder piece. A rotating body provided, and a lid body having a top plate portion in which a discharge hole is formed and closing an upper end opening of the container body, the fixed partition plate, the rotation partition plate, and the bottom surface of the container body And the inner peripheral surface and the top plate portion of the lid body define a storage chamber, and the volume of the storage chamber is reduced by relatively rotating the container body and the rotating body around the axis, and through the discharge hole. A discharge container configured to discharge the contents in the storage chamber to the outside, and the rotating partition plate A sliding member made of a rubber-like elastic body is provided from the radially outer end to the lower end, and the end surfaces of the sliding member are in contact with the inner peripheral surface and the bottom surface of the container body, and the inner peripheral surface of the container body or the at least one radially outer end face of the sliding member, Rutotomoni is roughened, at least one of the lower end surface of the bottom or the sliding member of the container body is roughened, said barrel The lower end portion of the piece is formed with a rubber-like elastic body and is provided with a sliding contact portion that comes into contact with the bottom surface of the container body. When the contents in the storage chamber are discharged to the outside, the sliding portion While the member is elastically deformed , the member is brought into sliding contact with the inner peripheral surface and the bottom surface of the container main body, and the sliding contact portion is brought into sliding contact with the bottom surface of the container main body .

  According to the discharge container having this configuration, the rotating partition plate is provided with the sliding member made of the rubber-like elastic body, and when the contents in the storage chamber are discharged to the outside, the sliding member is placed radially inward. Since it is slidably contacted with the inner peripheral surface of the container main body while being elastically deformed, the sliding member can be brought into surface contact with the inner peripheral surface of the container main body during the discharge. Moreover, since at least one of the inner peripheral surface of the container body or the radially outer end surface of the sliding member is a rough surface on which minute irregularities are formed, the sliding member and the inner peripheral surface of the container main body are It will be elastically deformed and contacted along the minute irregularities of the rough surface. For this reason, the contact area of the said sliding member and the inner peripheral surface of a container main body becomes large, and the sealing performance of a rotation partition plate and the inner peripheral surface of a container main body can be improved. Further, the frictional resistance between the sliding member and the inner peripheral surface of the container main body becomes small, and it becomes easy to rotate the rotating body to discharge the contents, thereby improving the operability of the discharge container.

  In addition, the rubber disposed on the rotating partition plate also on the bottom surface of the container main body by making at least one of the bottom surface of the container main body or the lower end surface of the sliding member a rough surface on which minute irregularities are formed. The contact area between the sliding member made of a cylindrical elastic body and the bottom surface is increased, and the sealing property between the rotary partition plate and the bottom surface of the container body can be improved.

  According to the present invention, the sealing property between the rotary partition plate and the inner surface of the container main body can be improved, and the contents stored in the storage chamber can be reliably discharged from the discharge holes.

Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 to 4 show a discharge container according to an embodiment of the present invention.
The discharge container 1 according to the present embodiment includes a container body 10 having a substantially bottomed cylindrical shape extending along a central axis O, a rotating body 20 rotatably disposed in the container body 10, and an opening of the container body 10. The lid 30 is arranged so as to close the part, and the overcap 40 is placed on the lid 30.

The container body 10 includes a bottom plate portion 11 and a peripheral wall portion 12, and a locking cylinder portion 13 having a locking portion 13 </ b> A protruding outward in the radial direction is formed at the upper end portion of the peripheral wall portion 12. ing. Further, the container body 10 is provided with an outer cylinder portion 14 that protrudes radially outward from the lower end portion of the locking cylinder portion 13 and extends downward. The end face is configured to be grounded. Furthermore, an internal thread portion 15 to which the overcap 40 is attached is formed at the upper end portion of the outer cylinder portion 14.
Further, the bottom plate portion 11 of the container body 10 is provided with a support column portion 16 extending from the bottom surface 11 </ b> A of the bottom plate portion 11 along the central axis O. The protruding height of the support column 16 is about ½ of the height of the peripheral wall 12.

  Furthermore, the container main body 10 is provided with a fixed partition plate 17 that extends radially inward from the inner peripheral surface 12 </ b> A (the inner surface of the peripheral wall portion 12) and partitions the internal space of the container main body 10. A slight gap is formed between the radially inner end of the fixed partition plate 17 and the outer peripheral surface of the support column 16. Note that no gap is formed between the fixed partition plate 17 and the bottom surface 11A. As shown in FIGS. 2 and 3, the fixed partition plate 17 has a substantially triangular prism shape with the circumferential width gradually decreasing from the radially outer side to the inner side. On one side of the fixed partition plate 17 (the front side in the direction of the arrow T in FIGS. 2 and 3), a concave portion 18 that is recessed by one step is formed.

  And 12 A of inner peripheral surfaces (inner surface of the surrounding wall part 12) of the container main body 10, and 11 A of bottom surfaces of the baseplate part 11 are made into the rough surface by which the micro unevenness | corrugation was formed by roughening processes, such as sandblasting. When the container body 10 is made of a synthetic resin, the surface of the mold for molding the container body 10 is subjected to a rough surface process such as sand blasting so that the inner peripheral surface 12A (the peripheral wall portion 12) of the container body 10 is obtained. ) And the bottom surface 11A of the bottom plate portion 11 can be a rough surface on which minute irregularities are formed.

  The rotating body 20 has a cylindrical shaft tube piece 21 that is rotatably fitted to a support column 16 that is erected on the container body 10. The shaft tube piece 21 includes a first tube portion 22 that opens downward and a second tube portion 23 that opens upward and has a smaller diameter than the first tube portion 22. The first tube portion 22 is externally fitted to the support column portion 16. Further, a key groove 23 </ b> A is formed in the second cylinder portion 23. The wall thickness of the shaft tube piece 21 is substantially the same as the width of the gap formed between the radially inner end of the fixed partition plate 17 and the outer peripheral surface of the support column 16. In addition, a sliding contact portion 24 made of a thermoplastic elastomer such as olefin, styrene, or polyester is formed at the lower end portion of the shaft tube piece 21.

The rotating body 20 includes a rotating partition plate 25 extending radially outward from the outer peripheral surface of the shaft tube piece 21 and juxtaposed with the fixed partition plate 17 of the container body 10 over the entire height of the shaft tube piece 21. Is provided.
A sliding member 26 made of, for example, an olefin-based, styrene-based, or polyester-based thermoplastic elastomer is provided at the radially outer end and lower end of the rotary partition plate 25. The sliding member 26 is assembled from the side wall surface 25B on the other side (the rear side in the direction of arrow T in FIGS. 2 and 3) of the rotary partition plate 25, and one side (FIGS. 2 and 3) of the rotary partition plate 25. In FIG. 5, only the edge portion of the side wall surface 25 </ b> A on the front side in the arrow T direction is exposed.

  The lid body 30 has a top plate portion 31 having a substantially disc shape and a shaft portion 32 depending from the top plate portion 31. A discharge hole 33 penetrating in the thickness direction is formed in the top plate portion 31. Moreover, the peripheral part of the top plate part 31 is erected upward. Further, the shaft portion 32 can be fitted into the second tube portion 23 of the shaft tube piece 21 of the rotating body 20, and the key portion 32 </ b> A inserted into the key groove 23 </ b> A on the outer peripheral surface of the shaft portion 32. Is formed. By the engagement between the key portion 32A and the key groove 23A, the rotating body 20 is also rotated by rotating the lid 30.

  Further, on the lower side of the top plate portion 31, there is formed an attachment tube portion 34 that protrudes one step radially outward and extends downward. The inner diameter of the mounting cylinder portion 34 is made one step larger than the outer diameter of the locking cylinder portion 13 of the container body 10, and the locking portion 13 </ b> A of the locking cylinder portion 13 is formed at the lower end portion of the mounting cylinder portion 34. An engaging portion 34A that can be engaged is formed.

  Next, a method for assembling the discharge container 1 will be described. The shaft tube piece 21 (first tube portion 22) of the rotating body 20 is fitted to the support column portion 16 of the container body 10, and the rotating partition plate 25 and the fixed partition plate 17 are juxtaposed in the container body 10. A packing 41 is disposed on the upper end surfaces of the container body 10 and the rotary partition plate 25. The shaft portion 32 of the lid body 30 is inserted into the second tube portion 23 of the shaft tube piece 21. At this time, the key groove 23A and the key portion 32A are engaged with each other. Here, the attachment cylinder part 34 of the lid 30 is put on the locking cylinder part 13 of the container body 10 to engage the engaging part 34A and the locking part 13A with each other. Furthermore, the discharge hole 33 is closed by attaching the overcap 40 from above the lid 30.

  Thus, the top plate portion 31 of the lid 30 is brought into contact with the upper ends of the peripheral wall portion 12, the fixed partition plate 17 and the rotary partition plate 25 of the container body 10 via the packing 41, and the inner peripheral end of the fixed partition plate 17 is the shaft. The sliding member 26 of the rotating partition plate is brought into contact with the outer peripheral surface of the cylinder piece 21 and is slidably contacted with the bottom surface 11A and the inner peripheral surface 12A of the container body 10, and the fixed partition plate 17, the rotating partition plate 25, A storage chamber R is defined in a portion surrounded by the bottom surface 11 </ b> A and the inner peripheral surface 12 </ b> A of the container body 10 and the top plate portion 31 of the lid 30.

  The storage chamber R is filled with cream, ointment, gel-like contents. In the state where the contents are filled in the storage chamber R, as shown in FIG. 2, the other side wall surface 25B of the rotary partition plate 25 and the one side wall surface 17A of the fixed partition plate 17 are opposed to each other. The sliding member 26 assembled from the other side wall surface 25 </ b> B of the rotating partition plate 25 is disposed in the recess 18 formed on the one side wall surface 17 </ b> A of the fixed partition plate 17.

  In the discharge container 1 configured as described above, the rotating partition plate 25 is also rotated in the direction of the arrow T by rotating the lid 30 in the direction of the arrow T shown in FIGS. The volume of the chamber R gradually decreases. As a result, the content is compressed and discharged to the outside through the discharge hole 33.

Here, in the discharge container 1 according to the present embodiment, the sliding member 26 made of a thermoplastic elastomer disposed from the radially outer end to the lower end of the rotating partition plate 25 is elastically deformed radially inward. The sliding member 26 can be brought into surface contact with the inner peripheral surface 12 </ b> A of the container main body 10 because it is in sliding contact with the inner peripheral surface 12 </ b> A of the container main body 10.
Furthermore, since the inner peripheral surface 12A (the inner surface of the peripheral wall portion 12) and the bottom surface 11A of the container main body 10 are rough surfaces on which minute irregularities are formed, the sliding member 26 is the inner peripheral surface 12A of the container main body 10. And the elastic deformation along the minute irregularities of the bottom surface 11A is brought into contact, and the contact area between the sliding member 26 and the inner peripheral surface 12A and the bottom surface 11A of the container body 10 is increased. The sealing property can be improved. Therefore, when the rotating partition plate 25 is rotated, the contents can be reliably discharged to the outside through the discharge holes 33 without the contents remaining in the container body 10.

Moreover, since the inner peripheral surface 12A and the bottom surface 11A of the container body 10 are rough, the frictional resistance between the sliding member 26 and the inner peripheral surface 12A and the bottom surface 11A of the container body 10 is reduced, and the contents are discharged. Therefore, the rotating body 20 can be easily rotated, and the operability of the discharge container 1 is improved.
Further, since the sliding member 26 is assembled from the other side wall surface 25B of the rotating partition plate 25 and exposed only at the edge of the one side wall surface 25A of the rotating partition plate 25, the rigidity of the rotating partition plate 25 is increased. Is ensured, and the contents can be reliably compressed and discharged from the discharge hole 33.
Moreover, since the sliding contact part 24 is provided in the lower end part of the axial cylinder piece 21 of the rotary body 20, the sealing performance of the lower end part of the axial cylinder piece 21 and the bottom face 11A of the bottom plate part 11 can be improved.

The discharge container according to the embodiment of the present invention has been described above, but the technical scope of the present invention is not limited to this, and can be appropriately changed without departing from the technical idea of the present invention.
For example, although the outer cylinder part is provided in the container body and the lower end surface of the outer cylinder part is grounded, the bottom plate part may be grounded without providing the outer cylinder part.

Moreover, although it was set as the structure which rotates a rotary body and a cover body by engagement with the key groove formed in the axial cylinder piece of a rotary body, and the key part formed in the axial part of a cover body, it is limited to this. There is nothing. For example, a fitting between a square hole and a rectangular shaft, a spline shaft, or the like may be used, and the lid body and the rotating body may be configured to rotate integrally.
In addition, the lid has been described as an integrally molded top plate part and mounting cylinder part, but the present invention is not limited to this, and the mounting cylinder part and the top plate part are molded separately and attached. It is good also as a structure which fixes a top-plate part to a container main body by attaching a cylinder part.

  Furthermore, although the inner peripheral surface and the bottom surface of the container main body have been described as rough surfaces having minute irregularities, the present invention is not limited to this, and the inner peripheral surface of the container main body or the radially outer side of the sliding member is not limited thereto. It is sufficient that at least one of the side end surfaces is a rough surface. Moreover, it is sufficient that at least one of the bottom surface of the container body or the lower end surface of the sliding member is a rough surface.

  Provided is a discharge container capable of further improving the hermeticity between the peripheral edge of a rotating partition plate and the inner surface of a container main body and reliably discharging the contents.

It is a disassembled perspective view of the discharge container which is embodiment of this invention. It is a top view which shows the state with which the content was filled in the discharge container shown in FIG. It is a top view which shows the state which took out the content in the discharge container shown in FIG. It is a longitudinal cross-sectional view of the discharge container shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Discharge container 10 Container main body 11A Bottom surface 12A Inner peripheral surface 16 Support | pillar part 17 Fixed partition plate 20 Rotor 21 Shaft cylinder piece 25 Rotation partition plate 26 Sliding member 30 Lid body 31 Top plate part 33 Discharge hole

Claims (1)

A container main body having a bottomed cylindrical shape extending along the axis, a column portion standing from the bottom surface along the axis, and a fixed partition plate extending radially inward from the inner peripheral surface, and the column A rotating body having a shaft cylinder piece that is rotatably fitted to the section, and provided with a rotating partition plate extending radially outward from the outer peripheral surface of the shaft cylinder piece, and a top plate section in which discharge holes are formed A lid that closes the upper end opening of the container body,
The fixed partition plate, the rotary partition plate, the bottom and inner peripheral surfaces of the container body, and the top plate portion of the lid body define a storage chamber, and the container body and the rotating body are relatively moved around the axis. A discharge container configured to rotate to reduce the volume of the storage chamber and discharge the contents in the storage chamber to the outside through the discharge hole,
The rotating partition plate is provided with a sliding member made of a rubber-like elastic body from the radially outer end to the lower end thereof, and the end surfaces of the sliding member are in contact with the inner peripheral surface and the bottom surface of the container body,
At least one of the radially outer end surface of the inner peripheral surface or the sliding member of the container body, Rutotomoni is roughened,
At least one of the bottom surface of the container body or the lower end surface of the sliding member is a rough surface,
The lower end portion of the shaft tube piece is formed with a rubber-like elastic body and is provided with a sliding contact portion that comes into contact with the bottom surface of the container body ,
In discharging the storage chamber of the contents to the outside, said sliding member, while elastically deforming, together with the sliding contact with the inner peripheral surface and the bottom surface of the container body, the sliding contact portion and the bottom surface of the container body A discharge container characterized by being brought into sliding contact with the container.

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