JP5055107B2 - Discharge container - Google Patents

Description

  The present invention relates to a discharge container.

Conventionally, as a discharge container capable of discharging the filled content liquid, for example, as shown in Patent Document 1 below, a main body cylinder filled with the content liquid, a piston slidably inserted into the main body cylinder, There is known a syringe container comprising:
JP 2005-103092 A

  However, in the conventional discharge container, for example, a sealing device for preventing the content liquid from leaking between the piston and the main body cylinder, or the piston unexpectedly slides in the main body cylinder during the flow of the discharge container. Therefore, it is necessary to assemble a piston fixture or the like to prevent this from being performed on the syringe container, and it may take time to assemble the discharge container.

  The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide a discharge container that can be easily assembled and has good sealing properties.

In order to solve the above-described problems and achieve such an object, the discharge container of the present invention is filled with the content liquid, squeezed deformable and reversible, and a flexible bottle. A sealing material that seals the upper end opening surface of the mouth tube portion; a discharge mechanism that is detachably attached to the mouth tube portion of the bottle; and a discharge portion that discharges the content liquid in the bottle; and the discharge portion And a cap that is detachably attached to the discharge portion, and the discharge portion is configured to be connectable to a tube having a nozzle in a state in which the cap is removed. in a state where the removal from the mouth tube portion, and a discharge valve communicating and blocking the interior and the discharge portion of the bottle, an internal intake valve for communicating and blocking the outside of the container of the bottle, the seal An inner plug that sandwiches the outer peripheral edge portion between the upper end opening edge of the mouth tube portion, a large diameter tube portion attached to the mouth tube portion of the bottle, and a coaxial connection to the upper end portion of the large diameter tube portion A mounting cylinder configured in a multi-stage cylindrical shape with a small-diameter cylindrical part, and the inner plug includes a ring-shaped bottom plate part extending in a radial direction of the mounting cylinder, and a surface of the bottom plate part A plurality of cylindrical bodies projecting coaxially upward, and an outer peripheral surface of a third cylindrical body having the largest inner diameter and outer diameter among the plurality of cylindrical bodies is formed of the large-diameter cylindrical portion. The inner peripheral surface is fitted to the portion on the small-diameter cylindrical portion side, and in the bottom plate portion, between the first cylindrical body having the smallest inner diameter and outer diameter, and between the first cylindrical body and the third cylindrical body. A through hole is formed in a portion located between the second cylinder and the intake cylinder, and the intake valve extends along a radial direction of the mounting cylinder. A ring-shaped flange portion that extends and a tubular valve portion that is suspended from the radially inner end of the flange portion, the flange portion including the second tubular body of the inner plug and the second By being sandwiched in the thickness direction between the upper ends of the three cylinders and the inner surface of the connecting portion of the large-diameter cylindrical portion and the small-diameter cylindrical portion in the mounting cylinder, A valve portion is positioned above the through hole in the inner plug, and the discharge valve is provided so as to protrude upward from an outer peripheral edge of the valve main body and the valve main body extending along the radial direction. A fitting cylinder portion fitted to the inner peripheral surface of the first cylinder, and when the bottle is squeezed to increase the internal pressure of the bottle, the valve body of the discharge valve opens and the bottle The inside of the bottle and the discharge part are communicated with each other, and the squeeze deformation is released to reduce the internal pressure of the bottle. The lower end portion of the valve portion of the intake valve is elastically deformed by the pressure difference between the internal pressure and the external pressure of the bottle, so that the intake valve opens and the inside of the bottle and the outside of the container Is communicated through the through-hole , and the valve main body of the discharge valve is closed to block communication between the inside of the bottle and the discharge portion.
According to this invention, since the upper end opening surface of the mouth tube portion of the bottle is sealed with the sealing material, and the cap is detachably attached to the discharge portion, it can be easily assembled and has good sealing performance. A discharge container having the following is obtained.
In addition, since the discharge mechanism is provided with an inner stopper that sandwiches the outer peripheral edge portion of the sealing material between the upper end opening edge of the mouth tube portion, the content is sealed after the content liquid is sealed in the bottle. Before the liquid is used, it becomes possible to ensure that the outer peripheral edge of the sealing material is in intimate contact with the upper end opening edge of the mouth tube portion, thereby further improving the sealing performance of the discharge container. it can.
Further, the discharge mechanism includes a large-diameter cylindrical portion attached to the mouth cylindrical portion of the bottle, and a small-diameter cylindrical portion coaxially connected to the upper end portion of the large-diameter cylindrical portion, and is configured in a multistage cylindrical shape. The inner plug includes a ring-shaped bottom plate portion extending along a radial direction of the mounting tube, and a plurality of cylindrical bodies projecting coaxially upward on the surface of the bottom plate portion. The outer peripheral surface of the third cylindrical body having the largest inner diameter and outer diameter among the plurality of cylindrical bodies is fitted to the portion on the small diameter cylindrical portion side on the inner peripheral surface of the large diameter cylindrical portion. In the bottom plate portion, a portion located between the first cylindrical body having the smallest inner diameter and outer diameter and the second cylindrical body provided between the first cylindrical body and the third cylindrical body. A through hole is formed, and the intake valve includes a ring-shaped flange portion extending along a radial direction of the mounting cylinder, A tubular valve portion that is suspended from the radially inner end of the lunge portion, and the flange portion includes upper ends of the second tubular body and the third tubular body of the inner plug, and the attachment By being sandwiched in the thickness direction between the inner surface of the connecting portion between the large-diameter cylindrical portion and the small-diameter cylindrical portion in the cylinder, the valve portion is provided inside the mounting cylinder, and the valve portion of the through hole in the inner plug The discharge valve is located above and extends in the radial direction from the valve main body, and protrudes upward from the outer peripheral edge of the valve main body to fit on the inner peripheral surface of the first tubular body of the inner plug. And when the bottle is squeezed to increase the internal pressure of the bottle, the valve body of the discharge valve opens to allow communication between the inside of the bottle and the discharge portion. And when the squeeze deformation is released to reduce the internal pressure of the bottle, the valve portion of the intake valve The lower end is elastically deformed by the pressure difference between the internal pressure and the external pressure of the bottle, whereby the intake valve is opened and the inside of the bottle communicates with the outside of the container through the through-hole, and the discharge valve Since the valve main body is closed and communication between the inside of the bottle and the discharge part is cut off, a discharge container capable of discharging the content liquid from the discharge part can be obtained easily and reliably.

Here, in the sealing material, at least the surface side in contact with the upper end opening edge of the mouth tube portion and the bottle may be formed of polyethylene terephthalate.
In this case, since the surface side of the sealing material and the bottle are formed of polyethylene terephthalate which is difficult to adsorb or permeate the content liquid, after the content liquid is sealed in the bottle and before the content liquid is used. It is possible to prevent a part of the components contained in the content liquid from adsorbing to the sealing material and the bottle, etc., so that the desired function is not exhibited when using the content liquid. It can be stored in the discharge container for a long time without deteriorating.

  According to the present invention, it is possible to obtain a discharge container that can be easily assembled and has good sealing performance.

Embodiments of the present invention will be described below with reference to the drawings.
As shown in FIG. 1, the discharge container 10 according to the present embodiment is filled with the content liquid, squeezed deformable and reversibly flexible, and a mouth tube portion 12 of the bottle 11. A sealing member 13 for sealing the upper end opening surface 12a of the bottle 11 and a discharge mechanism 15 having a discharge portion 14 for discharging the liquid contents are detachably attached to the mouth tube portion 12 of the bottle 11, and removed to the discharge portion 14. And a cap 16 which is attached in a possible manner.
In addition, as a content liquid with which the bottle 11 is filled, the dyeing liquid etc. which are used for the test | inspection in a digestive tract, etc. are mentioned, for example.

The bottle 11 is integrally formed of a material that is difficult to adsorb or permeate the content liquid, such as polyethylene terephthalate, and has a mouth tube portion 12 having a male screw portion 12b formed on the outer peripheral surface, and is larger than the mouth tube portion 12. And a body portion 17 formed in a bottomed cylindrical shape having a diameter.
The sealing material 13 is a disc-shaped body having an outer diameter larger than the inner diameter of the upper end opening edge 12c of the mouth tube portion 12, that is, the upper end opening surface 12a, and equal to the outer diameter of the upper end opening edge 12c. . And in this embodiment, in this sealing material 13, the surface side which contact | abuts the upper end opening edge 12c of the mouth tube part 12 of the bottle 11, and the back surface side opposite to this surface side are the same as the material which forms the bottle 11, respectively. It is formed with the material. Thereby, when arranging the sealing material 13 at the upper end opening edge 12c of the mouth tube portion 12, it becomes possible to save the trouble of checking the front and back surfaces of the sealing material 13, and to increase the efficiency of the assembly of the discharge container 10. Is planned. In this embodiment, the sealing material 13 is configured by sticking sheets made of polyethylene terephthalate or the like to the front and back surfaces of the disk-shaped packing.

The discharge mechanism 15 includes a discharge valve 22 that communicates and blocks the inside of the bottle 11 and the discharge portion 14 in a state where the sealing material 13 is removed from the mouth tube portion 12, and the inside of the bottle 11 and the outside of the container 10. And an intake valve 20 that communicates and shuts off the air.
In the illustrated example, the discharge mechanism 15 further includes a large-diameter cylindrical portion 18a in which an internal thread portion 18c that engages with the external thread portion 12b of the bottle 11 is formed on the inner peripheral surface, and an upper end portion of the large-diameter cylindrical portion 18a. A mounting cylinder 18 having a small-diameter cylindrical portion 18b that is coaxially connected via a connecting portion 18d extending in the radial direction thereof, and a female thread portion on the inner peripheral surface of the large-diameter cylindrical portion 18a. An inner plug 19 fitted to a portion on the small diameter cylindrical portion 18b side which is a non-formed portion of 18c, and a joint cylindrical portion 21 fitted into the small diameter cylindrical portion 18b are provided.

 And in this embodiment, the upper end part which protruded upwards from the small diameter cylinder part 18b in the joint cylinder part 21 becomes the above-mentioned discharge part 14, This discharge part 14 has the discharge container 10 in the unopened state. When the cap 16 is attached and the cap 16 is removed and the sealing material 13 is removed from the mouth tube portion 12 to open the discharge container 10 and use the content liquid, the nozzle 24 is placed at the tip as shown in FIG. The formed tube 25 can be connected.

 In addition, between the outer peripheral surface of the joint cylinder part 21 and the inner peripheral surface of the small diameter cylinder part 18b in the attachment cylinder 18, the rotation prevention means which regulates the relative rotation of the joint cylinder part 21 and the attachment cylinder 18 or / And a circumferential positioning means and a retaining means for restricting the joint cylinder part 21 from coming off from the small diameter cylinder part 18b. Among these, the anti-rotation means and / or the circumferential positioning means includes the vertical grooves and the vertical ribs formed in the outer peripheral surface of the joint cylindrical portion 21 and the inner peripheral surface of the small diameter cylindrical portion 18b, respectively, extending in the vertical direction. It is configured by meshing with a gap (hereinafter referred to as “intake passage 10a”) in the radial direction. The intake passage 10a has an upper end opened to the outside of the discharge container 10 across the upper end opening edge of the small diameter cylindrical portion 18b in the radial direction, and a lower end opened to the inner surface of the connecting portion 18d of the mounting cylinder 18. ing.

The inner plug 19 includes a ring-shaped bottom plate portion 19b extending along the radial direction of the mounting cylinder 18, and a first cylindrical body 19c projecting upward on the surface of the bottom plate portion 19b toward the small-diameter cylindrical portion 18b. The second cylinder 19d and the third cylinder 19e are provided. Each of these cylinders 19c, 19d, and 19e is provided coaxially with the ring-shaped bottom plate portion 19b.
The outer peripheral surface of the third cylindrical body 19e having the largest inner diameter and outer diameter among these cylindrical bodies 19c, 19d, and 19e is fitted to the inner peripheral surface of the large-diameter cylindrical portion 18a of the mounting cylinder 18. Further, the bottom plate portion 19b, and a second cylindrical body 19d, the tubular body 19c of the foregoing, 19d, the portion located between the most inner and smaller outer diameter first cylindrical body 19c of 19e, a through hole 19f is Is formed. Further, the bottom plate portion 19b of the inner plug 19 sandwiches the outer peripheral edge portion of the sealing material 13 with the upper end opening edge 12c of the mouth tube portion 12 in a state where the discharge container 10 is not opened.

Here, the intake valve 20 includes a ring-shaped flange portion 20b extending along the radial direction of the mounting cylinder 18, and a cylindrical valve portion 20a suspended from the radially inner end of the flange portion 20b. These 20a and 20b are integrally formed of silicon rubber, for example. The intake valve 20 has a flange portion 20b in the thickness direction between the upper ends of the second cylinder 19d and the third cylinder 19e of the inner plug 19 and the inner surface of the connecting portion 18d of the mounting cylinder 18. By being sandwiched, it is provided inside the mounting cylinder 18.
The flange portion 20b is located on the inner surface of the connecting portion 18d of the mounting cylinder 18 on the outer side in the radial direction with respect to the lower end opening of the intake passage 10a, and the intake passage 10a is a tubular valve portion. It opens toward the inside of 20a. The valve portion 20a is positioned above the through hole 19f in the inner plug 19, and its lower end portion 20c gradually decreases in diameter toward the lower end and is elastically deformable in the radial direction of the mounting cylinder 18. .

  The discharge valve 22 includes a valve body 22a extending along the radial direction of the mounting cylinder 18 and a fitting cylinder part 22b projecting upward from the outer peripheral edge of the valve body 22a. The outer peripheral surface of 22 b is fitted into the inner peripheral surface of the first cylinder 19 c of the inner plug 19 and is provided inside the mounting cylinder 18. Here, the upper end of the fitting cylinder part 22b in the discharge valve 22 and the lower end opposite to the discharge part 14 among the upper and lower ends of the joint cylinder part 21 face each other in the vertical direction. The upper end of the combined cylinder part 22 b and the lower end of the joint cylinder part 21 are connected via a connecting cylinder part 23.

The connecting cylinder portion 23 is provided inside the mounting cylinder 18 so as to be coaxial with the large diameter cylinder section 18 a and the small diameter cylinder section 18 b, and is formed integrally with the mounting cylinder 18. In addition, annular grooves are formed at both opening edges of the connecting cylinder portion 23 in the vertical direction, and an upper end edge of the fitting cylinder portion 22b and a lower end of the joint cylinder portion 21 are separately formed in each of the annular grooves. The discharge valve 22 and the joint cylinder part 21 are connected by the edge being fitted. Furthermore, the outer diameter of the connecting cylinder part 23 is equal to the outer diameter of the first cylinder 19c of the inner plug 19, and the valve part of the intake valve 20 is formed on the outer peripheral surface of the connecting cylinder part 23 over the entire circumference. The lower end of 20a abuts in an airtight state.
Thereby, the outer peripheral surface of the first cylinder 19 c of the inner plug 19, the inner peripheral surface of the second cylinder 19 d, and the portion where the lower end of the valve portion 20 a of the intake valve 20 abuts on the outer peripheral surface of the connecting cylinder portion 23. The space B surrounded by the portion located below the upper surface of the bottom plate portion 19b of the inner plug 19 and the intake passage 10a are partitioned. A through hole 19f of the inner plug 19 is opened in the space B.

Next, the usage method of the discharge container 10 is demonstrated.
First, the discharge mechanism 15 is removed from the mouth tube portion 12 of the bottle 11, the sealing material 13 is removed from the mouth tube portion 12 of the bottle 11, and the upper end opening surface 12a is opened. Thereafter, the cap 16 is removed from the discharge portion 14, and a tube 25 as shown in FIG. 2 is attached to the discharge portion 14, and the discharge mechanism 15 is attached to the mouth tube portion 12. At this time, the bottom plate portion 19 b of the inner stopper 19 abuts on the upper end opening edge 12 c of the mouth tube portion 12 of the bottle 11 in a liquid-tight state.

Then, in a state where the discharge container 10 is turned upside down as shown in FIG. 2 from the state shown in FIG. 1, the body portion 17 of the bottle 11 is squeezed to increase its internal pressure, the pressure is allowed to act on the valve body 22a of the discharge valve 22 opens the valve body 22a, the internal of the bottle 11 and the discharge portion 14, the inside of the fitting cylinder 22b and the connection tubular part 23 of the discharge valve 22 Communicate through. As a result, the content liquid in the bottle 11 flows into the tube 25 through the discharge unit 14 and is discharged from the nozzle 24 of the tube 25 to the outside. In the above process, the content liquid does not pass through the through hole 19f of the inner plug 19 due to its viscosity, and the space B is not filled with the content liquid.

Next, when the squeeze deformation of the bottle 11 is released and the internal pressure of the bottle 11 is reduced, the valve body 22a of the discharge valve 22 is closed, and the communication between the inside of the bottle 11 and the discharge portion 14 is blocked. When the discharge of the bottle 11 stops, the bottle 11 expands and deforms so as to be restored, and its internal pressure becomes lower than the external pressure.
At this time, as described above, the lower end of the valve portion 20a of the intake valve 20 contacts the outer peripheral surface of the connecting cylinder portion 23 in an airtight state, the intake passage 10a communicates with the outside of the discharge container 10, and the space B is Since it communicates with the inside of the bottle 11 through the through hole 19 f of the inner plug 19, the internal pressure is larger in the intake passage 10 a than in the space B.

Therefore, due to this pressure difference, the lower end portion 20c of the valve portion 20a of the intake valve 20 is elastically deformed outward in the radial direction so as to be separated from the outer peripheral surface of the connecting cylinder portion 23, and the intake passage 10a and the space B And communicate. As a result, the outside air passes through the intake passage 10a, the space B, and the through hole 19f of the inner plug 19 in this order, and flows into the bottle 11, whereby the internal pressure of the bottle 11 becomes equal to the external air pressure and is completely restored. Deform.

 As described above, according to the discharge container 10 according to the present embodiment, the upper end opening surface 12a of the mouth tube portion 12 of the bottle 11 is sealed with the sealing material 13, and the cap 16 is detachably attached to the discharge portion 14. Therefore, the discharge container 10 having good sealing properties can be obtained, and the container 10 can be easily assembled.

  Moreover, in this embodiment, since the said surface side of the sealing material 13 and the bottle 11 are formed with the polyethylene terephthalate which a content liquid does not adsorb | suck or permeate | transmit easily, this content liquid is sealed after the content liquid is sealed in the bottle 11. Before use, a part of the components contained in the content liquid is adsorbed by the sealing material 13 and the bottle 11 to prevent the desired function from being not exhibited when the content liquid is used. Therefore, the content liquid can be stored in the discharge container 10 for a long time without deterioration.

  Further, in the present embodiment, since the discharge mechanism 15 is provided with an inner plug 19 that sandwiches the outer peripheral edge of the sealing material 13 with the upper end opening edge 12c of the mouth tube portion 12, the content liquid is supplied to the bottle 11. Before the content liquid is used after being sealed, the outer peripheral edge portion of the sealing material 13 can be reliably brought into close contact with the upper end opening edge 12c of the mouth tube portion 12. Sealability can be further improved.

The technical scope of the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.
For example, in the present embodiment, the configuration in which the sheet is attached to the front and back surfaces of the packing as the sealing material 13 is shown, but it is attached only to the surface that contacts at least the upper end opening edge 12c of the mouth tube portion 12. Alternatively, the entire packing may be formed of a material that hardly absorbs or permeates the content liquid such as polyethylene terephthalate. Furthermore, the material forming the sealing material 13 and the bottle 11 is not limited to the material shown in the above embodiment, and may be appropriately changed according to, for example, the content liquid.
Moreover, in the said embodiment, although the discharge mechanism 15 was screwed by the port cylinder part 12, it is not restricted to this, For example, you may employ | adopt appropriate means, such as undercut fitting.

 Provided is a discharge container which can be easily assembled and has a good sealing property.

It is the decomposition | disassembly vertical half sectional view which showed the state before opening the discharge container shown as one Embodiment which concerns on this invention. It is a longitudinal half sectional view which shows the state which is using the discharge container shown in FIG. 1 upside down.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Discharge container 11 Bottle 12 Mouth part 12a Upper end opening surface 12c Upper end opening edge 13 Sealing material 14 Discharge part 15 Discharge mechanism 16 Cap 18 Installation cylinder 18a Large diameter cylinder part 18b Small diameter cylinder part 18d Connection part 19 Medium plug 19b Bottom plate part 19c 1st cylinder 19d 2nd cylinder 19e 3rd cylinder 19f Through-hole 20 Intake valve 20a Valve part 20b Flange part 22 Discharge valve 22a Valve body 22b Fitting cylinder part 24 Nozzle 25 Tube

Claims (2)

A bottle having a flexible liquid that can be squeezed and reconstructed while being filled with the content liquid;
A sealing material for sealing the upper end opening surface of the mouthpiece of the bottle;
A discharge mechanism that is detachably mounted on the mouth tube portion of the bottle and has a discharge portion for discharging the content liquid in the bottle;
A cap removably attached to the discharge part,
The discharge unit is configured such that a tube having a nozzle can be connected in a state where the cap is removed,
In the state where the seal material is removed from the mouth tube portion, the discharge mechanism communicates the inside of the bottle with the discharge portion, and communicates the inside of the bottle with the outside of the container. An intake valve that shuts off, an inner plug that sandwiches the outer peripheral edge of the sealing material between the upper end opening edge of the mouth tube portion, a large diameter tube portion attached to the mouth tube portion of the bottle, and the large diameter A mounting cylinder configured in a multi-stage cylindrical shape with a small-diameter cylindrical part connected coaxially to the upper end of the cylindrical part ; and
The inner plug includes a ring-shaped bottom plate portion extending along a radial direction of the mounting cylinder, and a plurality of cylindrical bodies protruding coaxially upward on the surface of the bottom plate portion,
An outer peripheral surface of a third cylindrical body having the largest inner diameter and outer diameter among the plurality of cylindrical bodies is fitted to a portion on the small diameter cylindrical portion side on an inner peripheral surface of the large diameter cylindrical portion, and the bottom plate In the portion, a through hole is formed in a portion located between the first cylinder having the smallest inner diameter and outer diameter and the second cylinder provided between the first cylinder and the third cylinder. And
The intake valve includes a ring-shaped flange portion that extends along a radial direction of the mounting cylinder, and a cylindrical valve portion that is suspended from the radially inner end of the flange portion,
The flange portion is sandwiched in the thickness direction between the upper ends of the second and third cylinders of the inner plug and the inner surface of the connecting portion of the large-diameter cylindrical portion and the small-diameter cylindrical portion in the mounting cylinder. Provided in the mounting cylinder, the valve portion is located above the through hole in the inner plug,
The discharge valve has a valve body extending along the radial direction, and a fitting projecting upward on the outer peripheral edge of the valve body and fitted to the inner peripheral surface of the first tubular body of the inner plug A cylindrical portion,
When the bottle is squeezed and the internal pressure of the bottle is increased, the valve body of the discharge valve opens and the inside of the bottle communicates with the discharge unit, and the squeeze deformation is released to release the bottle. When the internal pressure is reduced, the lower end portion of the valve portion of the intake valve is elastically deformed by the differential pressure between the internal pressure and the external pressure of the bottle, thereby opening the intake valve and opening the inside of the bottle and the outside of the container. dispensing container, characterized in that it is configured to cut off the communication between the preparative communicated via the through hole, and the valve body of the discharge valve is closed and the interior of the bottle the ejection unit. The discharge container according to claim 1,
The discharge container according to claim 1, wherein at least a surface side of the sealing material that is in contact with an upper end opening edge of the mouth tube portion and the bottle are formed of polyethylene terephthalate.

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