JP4807731B2 - Dispensing container - Google Patents

Description

  The present invention relates to a dispensing container, particularly a liquid dispensing container.

  Conventionally, in order to take out all the contents, it is fitted with a pump built in the mouth and neck so that it can be raised from the flexible inner bag for liquid filling suspended from the lower end of the mouth and neck or into the body of the container body. A container provided to pour liquid from the inside of the body part above the combined partition member to the outside is known (Patent Document 1, Patent Document 2).

In the latter container, in order to display the remaining amount of the contents, the lower end of the display plate inserted between the barrel portion of the container body and the transparent outer cylinder fitted to the barrel portion is provided on the lower surface of the partition member. There is also known a container configured such that the display plate descends in accordance with the remaining amount due to the rising of the partition member through a connecting band (Patent Document 3).
JP 05-139471 Utility Model Registration No. 2595246 JP 2002-362659

  Regarding the ease of taking out the contents, the container of Patent Document 1 is crushed into a substantially vertical bar as a whole while the inner bag is bent irregularly, so that the liquid is poured out depending on the fold. In some cases, it is difficult to suck up the liquid at the corner of the bag.

  Regarding the remaining amount display of the contents, in the container of Patent Document 2, if the body of the container body is transparent, the remaining amount can be determined by the rising of the partition member, but the contents are exposed to light from the outside. That is, it cannot be used for contents that require light shielding. In consideration of this point, in the container of Patent Document 3, a display plate is inserted between the body portion of the container body and the outer cylinder, and the display plate is connected to the partition member. The structure becomes complicated and the assembly work becomes difficult.

  Therefore, the present invention provides the inner bag containing the contents so as to be compressed evenly in the vertical direction by raising the partition member, so that the contents can be reliably poured out without waste. It is an object of the present invention to provide a dispensing container that can display the remaining amount and is easy to assemble.

The first means is
The partition member can be raised and airtightly fitted into the body part of the container body that stands up the mouth and neck part, and the contents stored in the body part above the partition member are externalized by a pump attached to the mouth and neck part. In the extraction container provided so that the partition member rises with the extraction,
An inner bag 30 filled with contents is suspended from the neck portion 7 into the barrel portion above the partition member 20, and between the outer surface of the inner bag 30 and the inner surface of the barrel portion 4 of the container body and the upper surface of the partition member 20. By sealing the space from the outside airtightly and adhering the lower end surface of the inner bag 30 to the upper surface of the partition member 20 , the inner bag 30 contracts in the vertical direction due to negative pressure due to the content being poured out. The partition member 20 is configured to be pulled up .

    When the contents in the inner bag are poured out by the pump as described above, the inner bag shrinks so as to be crushed. For example, in an inner bag that is long in the vertical direction, it may be crushed so that the middle part in the vertical direction can be confined while leaving the content at the lower end of the bag. In this case, the content remaining in the lower end is sucked Hard to do. This is because as the suction is performed, the intermediate portion is further crushed and the passage of the content from the lower end is narrowed. In this means, by fitting the partition member into the body portion of the container body, when the inner bag shrinks, a negative pressure is generated between the inner bag and the container body body portion and the partition member. The inner bag is provided so as to assist in contracting in the vertical direction by raising the partition member by the conversion.

The “inner bag” is a bag for filling the contents, and the upper end of the bag is directly or indirectly connected to the inner surface of the mouth and neck, and is suspended in the trunk of the container body. A space between the outer surface of the inner bag, the inner surface of the body portion of the container body, and the upper surface of the partition member (hereinafter referred to as a decompression space) is airtightly blocked from the outside so as to be negative pressure by the contents being poured out. In addition, this space may be designed so as to reduce the volume in the initial state (the state before the contents are poured out) as much as possible, thereby increasing the negative pressure and increasing the lifting force of the partition member. . Note that the lower end surface of the inner bag is brought into contact with and adhered to the upper surface of the partition member .

The purpose of the “partition member” is to raise by the negative pressure in the decompression space and to shrink the inner bag in the vertical direction mainly by pushing up the lower end surface of the inner bag . By bonding the lower end surface of the inner bag to the upper surface of the partition member, the contracted inner bag pulls up the partition member until the negative pressure in the reduced pressure space becomes a certain level or higher .

  The second means includes the first means, and at least the peripheral edge of the lower end surface of the inner bag 30 is bonded to the upper surface of the partition member 20.

  The reason for this configuration is that if the lower end of the inner bag is the free end, the inner bag may be irregularly bent (for example, in the shape of a letter) when shrinking due to the contents being taken out. This is because it becomes difficult to uniformly compress the bag in the vertical direction.

  The third means includes the first means or the second means, and a contact portion 10 with the upper surface of the inner bag 30 is provided in a portion extending from the upper portion of the trunk portion 4 to the lower end of the mouth neck portion 7 of the container body. ing.

  In this means, the inner bag can be compressed in the vertical direction by providing the contact portion and sandwiching the peripheral portion of the inner bag with the partition member.

  It is desirable that the “contact portion” has a flat contact surface on the lower surface. Note that, as in the embodiment described later, a hanging plate suspended from the shoulder from the upper end of the body 4 to the upper end of the mouth and neck may be used as the contact portion, but the shoulder itself may be used as the contact portion.

The fourth means has third means, and
The connecting tube 40 with the neck of the inner bag 30 fitted to the lower half is suspended by fitting the upper half of the connecting tube 40 to the inner surface of the mouth neck 7 and the lower end of the connecting tube and the above The lower end surface of the abutting portion 10 is almost the same height.

  By adopting such a configuration, the compression ratio of the inner bag in a state of being sandwiched between the contact portion and the partition member can be increased, the contents can be poured out reliably, and the container body can be transparent In this case, the user can tell at a glance that the inner bag has been compressed in the vertical direction and the contents have been used up. The inner bag may be formed of a thin and easily refracted material (for example, aluminum) so that an apparent compression ratio when compressed in the vertical direction is increased. The connecting cylinder may be a pump support cylinder.

  It is desirable to provide a ventilation groove for removing air from between the inner bag and the container body when the contents are filled in the upper outer surface of the connecting tube or the inner surface of the mouth neck that faces the outer surface. This will be described later in the column of the embodiment.

Fifth means includes third means or the fourth means, and as the boundary P ₁ between the inner bag 30 and the partition member 20 is clear, the color of the inner bag 30, the partition member 20 and a contact portion 10 with a different color, and further at least the body portion 4 of the container body 2, to form clear visible the boundaries P _1.

  With such a configuration, the remaining amount of contents can be displayed. It should be noted that the partition member and the abutting portion can also have different colors so that the boundary is easily visible.

The invention according to the first means produces the following effects.
○ Because the inner bag is suspended from the mouth and neck to the trunk part above the partition member, the inner bag 30 can be evenly compressed vertically by the partition member 20, and the lower end of the inner bag 30 until the compression is completed Therefore, it is easy to take out the contents of the inner bag 30.
○ Since the inner bag 30 for filling the contents is provided inside the container body 2, even if the contents are anaerobic, it is sufficient to form the inner bag with a light shielding material, and the entire container body is used as a light shielding container. There is no need.

Further , according to the first aspect of the invention, since at least the peripheral edge portion of the lower end surface of the inner bag 30 is bonded to the upper surface of the partition member 20, the bottom portion of the inner bag is extended and extended along the upper surface of the partition member. Thus, the side wall portion of the inner bag can be compressed in the vertical direction, so that the contents can be taken out without leaving the corner of the inner bag.

   According to the third aspect of the invention, since the contact portion 10 with the upper surface of the inner bag 30 is provided in the portion extending from the upper portion of the body portion 4 to the lower end of the mouth and neck portion 7 of the container body, the contact portion and the partition member The peripheral portion of the inner bag is sandwiched between the upper surface of the inner bag 30 and the inner bag 30 can be reliably compressed in the vertical direction.

The invention according to the fourth means has the following effects.
○ The connecting tube 40 with the inner bag 30 neck fitted to the lower half is suspended by fitting the upper half of the connecting tube 40 to the inner surface of the mouth neck 7 and the lower end of the connecting tube 40 Since the lower end surface of the contact portion 10 is substantially the same height, the compression ratio of the inner bag 30 from the initial state when the partition member 20 is raised to the upper limit position can be increased. The remaining amount of contents can be reduced.
○ Because the compression ratio of the inner bag 30 at the completion of compression was increased, when the container body was made a transparent container, the compression was completed due to the collapse of the inner bag (ie, the container was used up) Or the user knows that the state is approaching.

According to the invention of the fifth means, as the boundary P ₁ between the inner bag 30 and the partition member 20 is clear, the color of the inner bag 30, and the partition member 20 and the contact portion 10 and a different color, Furthermore the at least the body portion 4 of the container body 2, because formed transparent visible the boundaries P _1, it is possible to reliably display the remaining amount with a simple structure.

  1 and 2 show a dispensing container according to an embodiment of the present invention.

  First, a known part of the structure of the pouring container will be briefly described. The pouring container includes a container body 2, a pump 12, a pressing head 18, and a partition member 20. The container body 2 has a mouth-and-neck part 7 erected from the upper part of the bottomed body part 4 through a shoulder part 6. A bottom 9 is fitted to the lower end of the body 4. The pump 12 is formed by a cylinder cylinder 14 suspended from the upper end of the mounting cylinder fitted to the outer surface of the mouth-and-neck part 7, and a stem with a cylindrical piston standing from the inside of the cylinder. A pressing head 18 with a nozzle 16 is attached. The space between the upper part of the cylinder cylinder 14 and the mouth / neck part is hermetically sealed. A suction valve is formed at the bottom of the cylinder cylinder 14. The partition member 20 has a cylindrical piston 22 on its outer peripheral part fitted to the inner surface of the body part 4 of the container body so as to be able to rise, and is placed on the bottom part 9 in the initial state.

  In the present invention, the inner bag 30 for filling the contents is suspended from the inner surface of the mouth neck portion 7. In the illustrated example, the neck 32 of the inner bag 30 is fitted to the lower half of the connecting tube 40 hanging from the lower inner surface of the mouth-and-neck 7, and the shoulder-shaped flange-like wall 34 attached to the lower end of the neck is used. The bottomed cylindrical portion 36 is suspended.

  The connecting cylinder 40 has its upper half detachably fitted to the lower inner surface of the mouth-and-neck part 7, and the lower half of the connecting cylinder 40 is formed to have a slightly smaller inner diameter than the upper half. The tube 14 is liquid-tightly fitted to the lower outer surface of the tube 14. The length of the connecting cylinder 40 is set so that the bottom surface of the bottom of the cylinder cylinder 14 is at the same height as the lower end of the connecting cylinder or is located slightly below as shown in the example of the drawing.

  The container body 2 hangs a plurality of vertical plate-shaped contact portions 10 oriented in the radial direction from the lower surface of the shoulder portion 6 to substantially the same height as the lower end surface of the connection tube 40. The lower end surfaces of these contact portions are formed on a horizontal flat surface.

  The partition member 20 hangs the cylindrical piston 22 from the periphery of a substantially flat disk-shaped support plate 24. In the illustrated example, the center portion of the support plate 24 is shallowly recessed corresponding to the lower surface of the cylinder cylinder 14, and is supported by the support cylinder rising from the bottom wall of the container body 2 on the lower surface of the recess. On the upper surface of the support plate 24, the lower surface of the bottom 38 of the inner bag 30 is placed.

The upper surface of the partition member 20, the inner surface of the container body portion extending from the trunk portion to the shoulder portion 6 above the partition member, and the outer surface of the inner bag 30 form a decompression space S that is airtightly blocked from the outside of the container body. is doing. The peripheral edge of the lower end surface of the inner bag 30 is bonded to the upper surface of the partition member 20.

Furthermore, the color of the inner bag 30 and the color of the partition member 20 and the contact portion 10 are set so that the respective boundaries P ₁ and P ₂ can be clearly distinguished. Moreover, the trunk | drum 4 of the container body 2 is formed transparently so that those boundaries can be identified.

  In addition, an engaging ridge that engages with each other is provided around the outer surface of the upper end of the connection tube 40 and the inner surface of the mouth neck portion 7 below the upper end, and penetrates both of the engaging ridges. Thus, the ventilation grooves 8 and 42 for releasing air when filling the contents are formed so as to communicate with each other. In addition, it is desirable to provide an alignment means that fits in the communication state of the ventilation grooves 8 and 42 at appropriate positions between the outer surface of the connection tube 40 and the inner surface of the mouth neck portion 7.

    When assembling the container of the present application, the partition member 20 and the bottom portion 9 are sequentially fitted into the lower portion of the body portion 4 of the container body, and an empty inner bag 30 in which the connecting tube 40 is bonded to the neck portion 32 is placed in the body portion 4. And the upper half of the connecting tube 40 is fitted into the lower part of the mouth-and-neck portion 7. Then, the contents are filled into the inner bag 30 through the mouth / neck portion 7, and air between the outer surface of the inner bag 30 and the inner surface of the trunk portion 4 is exhausted through the ventilation grooves 8 and 42. Thereafter, the cylinder cylinder 14 of the pump 12 may be inserted into the connection cylinder 40, and sealing may be performed with a packing or the like sandwiched between the collar attached to the upper end of the cylinder cylinder and the upper end surface of the mouth neck 7.

  In the above configuration, when the push-down head 18 is moved up and down, the contents in the inner bag 30 are sucked up and ejected from the nozzle 16 by the action of the pump 12, and the inner bag 30 contracts and the inside of the decompression space S becomes Since the negative pressure is generated, the partition member 20 rises. Thereby, the user can visually recognize the remaining amount of the contents as the partition member 20 is raised.

  As the partition member 20 is lifted, the inner bag 30 does not bend into a square shape and contracts substantially uniformly in the vertical direction, for example, in a bellows shape. When the support partition member 20 approaches the upper limit position, the outer peripheral portion of the inner bag 30 is squeezed between the upper surface of the outer periphery of the support plate 24 and the lower surface of the contact portion 10 of the partition member 20, and the lower end of the pump 12 is pressed from the outer periphery. Since the contents are pushed out to the suction valve, the contents can be efficiently poured out, and the inner bag 30 can be clearly seen from the side of the container as it is crushed in a horizontal line, so it is clear that the contents have been used up. I understand.

1 is a longitudinal sectional view of a container according to a first embodiment of the present invention. 1 shows the state of use completion of the container.

Explanation of symbols

2 ... container body 4 ... trunk 6 ... shoulder 7 ... mouth neck 8 ... first ventilation groove 9 ... bottom
10 ... Contact part 12 ... Pump 14 ... Cylinder tube 16 ... Nozzle
18 ... Pushing head 20 ... Partition member
22 ... Cylinder piston 24 ... Support plate 30 ... Inner bag 32 ... Neck 34 ... Flange wall
36 ... Cylinder part 38 ... Bottom part 40 ... Connection cylinder 42 ... Second ventilation groove S ... Decompression space

Claims (5)

The partition member can be raised and airtightly fitted into the body part of the container body that stands up the mouth and neck part, and the contents stored in the body part above the partition member are externalized by a pump attached to the mouth and neck part. In the extraction container provided so that the partition member rises with the extraction,
The inner bag (30) filled with contents is suspended from the mouth and neck (7) into the upper barrel portion of the partition member (20), and the outer surface of the inner bag (30) and the barrel portion (4) of the container body The space between the inner surface and the upper surface of the partition member (20) is hermetically blocked from the outside, and the lower end surface of the inner bag (30) is bonded to the upper surface of the partition member (20), thereby pouring the contents. A pouring container characterized in that the inner bag (30) contracts in the vertical direction and the partition member (20) is pulled up due to the negative pressure caused by the dispensing.   The dispensing container according to claim 1, wherein at least a peripheral edge portion of a lower end surface of the inner bag (30) is bonded to an upper surface of the partition member (20).   The contact part (10) with the upper surface of an inner bag (30) was provided in the part from the trunk | drum (4) upper part of a container body to a mouth neck part (7) lower end, The claim 1 or Claim characterized by the above-mentioned. Item 3. A dispensing container according to Item 2. The connecting tube (40) with the neck of the inner bag (30) fitted to the lower half is suspended by fitting the upper half of the connecting tube (40) to the inner surface of the mouth neck (7). The pouring container according to claim 3, wherein the lower end of the connecting tube and the lower end surface of the abutting portion (10) have substantially the same height. The inner bag (30) has a color different from that of the partition member (20) and the abutting portion (10) so that the boundary (P ₁ ) between the inner bag (30) and the partition member (20) becomes clear. , further the container body at least the body portion (2) (4), characterized in that the formation of the boundary (P ₁₎ transparent visible, claim 3 or claim 4 dispensing container according.

Images