JP2006232327A - Dispensing container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a dispensing container for which the number of parts is reduced, and at the same time, which prevents foreign matters from entering the inside of the container from a dispensing port. <P>SOLUTION: This pouring container comprises a container body which houses a content liquid as a dispensing container and can be deformed by squeezing, an internal plug which is attached to the mouth cylindrical section of the container body, a valve member which is fitted on the internal plug and is formed of a flexible material, and an over-cap which is fitted on the container mouth cylindrical section. The internal plug is equipped with an upper wall section on which an external protruding line and an internal protruding line are raised, an internal cylinder which is vertically provided at the central section of the upper wall section and engages with the inner periphery of the mouth cylindrical section of the container body, and a dispensing cylinder which is stood at the central section of the upper wall section through a connecting piece, and in a vicinity of the center on the top wall of which a circulation hole is bored. The valve member is equipped with a cylindrical section which engages with the pouring cylinder of the internal plug, a top wall at the center of which a dispensing hole is bored, and which is fitted on the top wall of the dispensing cylinder of the internal plug, and a valve cylinder which engages with the external protruding line on the upper wall section of the internal plug. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a dispensing container, particularly a dispensing container that contains and dispenses content liquids such as eye drops.

  In a pouring container that can pour the content liquid in a dripping manner, the container body is composed of a squeezed barrel and a pouring tube provided with a pouring port on the upper part. 2. Description of the Related Art Conventionally, a pouring container in which the content liquid is poured out from the pouring outlet by pressing the body portion of the container body in an inverted state is well known.

Further, in the above-mentioned pouring container, the inner plug body (5) in which the pouring cylinder (9) having the pouring hole (11) formed in the center is assembled to the mouth portion (3) of the container body, A valve body (16) provided with a spout such as a slit (20) that closes the spout hole (11) is fitted into the spout cylinder (9) to prevent foreign matter from entering the container from the spout. Such a dispensing container has been conventionally known (see Patent Document 1).
Japanese Patent Laid-Open No. 2003-321045

  However, in the conventional dispensing container described in Patent Document 1, the valve holder (22) is required to immobilize the valve body (16) to the inner plug body (5), and the number of members increases. There was a problem that the production cost was high.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a dispensing container that reduces the number of members and prevents foreign substances from entering into the container from a spout, in order to solve the above problems.

  In order to solve the above-described problems, the present invention provides a container body that contains a liquid content and can be squeezed and deformed as a dispensing container, an inner plug that is attached to a mouth tube portion of the container body, A pouring container composed of a valve member formed of a soft material to be fitted and an overcap fitted to the container mouth tube, and the inner plug is provided with an outer protrusion and an inner protrusion standing upright. A wall portion, an inner cylinder that is suspended from the central portion of the upper wall portion and engages with the inner periphery of the mouth tube portion of the container body, and a central portion of the top wall that is erected via a connecting piece at the central portion of the upper wall portion The valve member has a cylindrical portion that engages with the outlet tube of the inner plug, and an outlet hole in the center. The structure characterized by including the top wall which fits a top wall, and the valve cylinder engaged with the outer protrusion of the upper wall part of an inner plug is employ | adopted.

  As an example of the valve member, the top wall of the valve member is deformed by the pressure of the container body, and a gap is formed between the top wall of the outlet tube of the inner plug, the flow hole in the top wall of the inner plug, and the valve member A flow path is formed between the top wall and the discharge hole of the top wall, or a space is formed by the inner periphery of the valve cylinder of the valve member, the upper wall portion of the inner plug, and the outer periphery of the extraction cylinder And the space communicates with the inside of the container body between the dispensing tube of the inner plug and the upper wall portion, and by the pressing operation of the container body, the end portion of the valve member of the valve member is connected to the upper wall portion of the inner plug. A structure characterized in that it is joined to and detached from the outer protrusion, or a part of the peripheral wall of the overcap abuts against the outer periphery of the valve cylinder of the valve member to press the end of the valve cylinder of the inner plug. The structure characterized by making it closely_contact | adhere to the inner protrusion outer periphery of an upper wall part is employ | adopted.

By simply attaching a soft valve member to the inner pipe's dispensing tube, the top wall of the valve member can be deformed by pressing the container body, and the flow path can be opened and closed. Foreign matter can be prevented from entering the container, and the valve cylinder of the valve member is joined to and disengaged from the outer protrusion on the inner wall of the inner plug against negative pressure inside the container. I was able to inhale outside air and release negative pressure.
Further, when the lid is closed, the inner periphery of the overcap presses the valve cylinder of the valve member, so that the inside of the container can be sealed.

Next, an embodiment of the dispensing container of the present invention will be described with reference to the drawings.
In FIG. 1, A is a container main body for storing the content liquid, B is an inner stopper, C is a valve member attached to the upper part of the inner stopper B, and D is an overcap.

The container main body A is formed from a container body 1 that can be squeezed and a mouth tube part 2 that is erected from the upper center of the container body 1.
A screw 3 is provided on the outer peripheral surface of the mouth tube portion 2.

  As shown in FIGS. 1 and 2, the inner plug B is suspended from the ring-shaped upper wall portion 5 whose lower surface is in contact with the upper end of the mouthpiece portion 2 of the container body A, and the inner edge of the upper wall portion 5, and the outer periphery is An inner tube 6 fitted to the inner periphery of the mouth tube portion 2 and an extraction tube 8 erected from the inner edge of the upper wall portion 5 via several connecting pieces 7 are provided.

A connecting piece 7 is left between the outer periphery of the lower end of the extraction tube 8 and the inner edge of the upper wall portion 5 to form a communication port 9.
An outer ridge 10 is erected on the upper surface of the outer edge of the upper wall portion 5, and an inner ridge 11 is erected on the inner side thereof.

A dome-shaped top wall 12 is connected to the upper end of the dispensing cylinder 8, and several flow holes 13 are formed in the top wall 12 in axial symmetry.
Engagement ridges 14 are disposed on the outer periphery of the dispensing tube 8.

The valve member C is formed of a soft synthetic resin, and as shown in FIGS. 1 and 3, the valve member C is externally fitted to the dispensing tube 8 of the inner plug B, and is connected to the upper end of the tube portion 15. A dome-shaped top wall 16 fitted to the top wall 12 of the inner plug B, and a valve cylinder 17 formed in a skirt shape that is continuously provided on the outer periphery of the lower end of the cylindrical portion 15 and expands from the upper side to the lower side. Yes.
As shown in FIG. 3A, the outer periphery of the lower end of the valve cylinder 17 is in contact with the inner peripheral surface of the outer protrusion 10 of the inner plug B in a normal state after the valve member C is mounted on the inner plug B. Is formed.

On the inner periphery of the tube portion 15, an engagement recess 18 that is engaged with the engagement protrusion 14 of the dispensing tube 8 of the inner plug B and prevents the valve member C from coming off from the inner plug B is disposed. Yes.
A pouring hole 19 is formed in the center portion of the top wall 16.

As shown in FIG. 1, the overcap D includes a top wall 20, an upper side peripheral wall 21 provided continuously from the periphery of the top wall 20, and a lower part provided continuously from the lower end of the upper side peripheral wall 21 via a step portion 22. It is formed from the side peripheral wall 23.
On the inner periphery of the lower-side peripheral wall 23, a screw 24 that is screwed into the screw 3 of the mouth tube portion 2 of the container body A is provided.

  A sealing ring 25 is suspended from the lower surface of the top wall 20, and when the overcap D is attached to the container body A, the lower end of the sealing ring 25 is the top wall 16 around the pouring hole 19 of the valve member C. It abuts on the upper surface, presses the top wall 16, and comes into close contact with the top wall 12 of the inner plug B.

  When the overcap D is attached to the container body A, the upper side peripheral wall 21 is in close contact with the upper end of the outer protrusion 10 of the inner plug B and the lower end inner periphery is a valve as shown in FIG. The lower end portion of the valve cylinder 17 is brought into close contact with the outer peripheral surface of the inner protrusion 11 of the inner plug B by contacting and pressing the outer periphery of the valve cylinder 17 of the member C.

Next, usage modes and effects of the dispensing container of the present invention will be described.
First, a method for assembling the container will be described.
The valve member C is mounted from above the dispensing tube 8 of the inner plug B.
At that time, as shown in FIG. 3A, the engaging recess 18 of the valve member C engages with the engaging protrusion 14 of the outlet tube 8 of the inner plug B, and the top wall 16 of the valve member C. The lower surface and the top surface of the top wall 12 of the inner plug B abut, and the lower end of the valve cylinder 17 of the valve member C and the inner peripheral surface of the outer protrusion 10 of the upper wall portion 5 of the inner plug B abut.

  By attaching the valve member C to the inner plug B, the inner plug B communicates with the extraction tube 8 and the upper wall portion 5 of the inner plug B, the lower end of the cylinder portion 15 of the valve member C, and the inner periphery of the valve cylinder 17. A space e communicating from the mouth 9 is formed.

Next, the inner stopper B equipped with the valve member C is attached to the mouth tube portion 2 of the container main body A filled with the content liquid.
At that time, the outer peripheral surface of the inner tube 6 of the inner plug B and the lower surface of the upper wall portion 5 are in contact with the inner peripheral surface and upper end of the mouth tube portion 2 of the container body A, and the inner tube 6 and the mouth tube portion 2 are fitted. By combining, the inner stopper B is brought into close contact with the container main body A.

Finally, the overcap D is put on the mouth tube portion 2 of the container main body A, and the container of the present invention is closed by screwing.
At that time, as shown in FIG. 3B, the lower end of the sealing ring 25 of the overcap D presses the top wall 16 of the valve member C, so that the top wall 16 is the top of the dispensing tube 8 of the inner plug B. The wall 12 is completely brought into close contact, and the space between the pouring hole 19 of the top wall 16 and the flow hole 13 of the top wall 12 is completely sealed.

Further, the inner periphery of the lower end of the upper side peripheral wall 21 of the overcap D presses the outer peripheral surface of the valve cylinder 17 of the valve member C, and the inner peripheral surface of the valve cylinder 17 is brought into close contact with the outer peripheral surface of the inner protrusion 11 of the inner plug B. Thus, the flow path from the space e to the outside is completely sealed.
As described above, a dispensing container filled with the content liquid is obtained.

In using the dispensing container, first, the overcap D and the container main body A are unscrewed, and the lid is opened as shown in FIG.
At that time, the pressure of the valve member C on the valve cylinder 17 is released, and the valve cylinder 17 is restored so that the lower end thereof is in contact with the inner peripheral surface of the outer protrusion 10 of the inner plug B.

Next, the opened container is inverted.
At that time, the content liquid in the container moves into the dispensing tube 8 of the inner stopper B.
The top surface of the top wall 12 between the flow hole 13 of the top wall 12 of the spout cylinder 8 of the inner plug B and the spout hole 19 of the top wall 16 of the valve member C is closely attached to the bottom surface of the top wall 16. Since it is sealed, the content liquid is prevented from flowing out of the container.

By pressing the container body portion 1 of the inverted container, the inside of the container is pressurized, and the content liquid that has exited the flow hole 13 of the top wall 12 of the inner plug B outwards the top wall 16 of the valve member C. Press.
When the top wall 16 is pressed, a gap is formed between the top wall 12 and the top wall 16, as shown in FIG. It is poured out of the container through the pouring hole 19 of the member C.

  At this time, the air in the space e is also pressurized, but since the inner peripheral surface of the valve cylinder 17 of the valve member C is pressed outward, the end of the valve cylinder 17 and the inner peripheral surface of the outer protrusion 10 of the inner plug B And the air is prevented from flowing out of the space e to the outside.

When the dispensing of the content liquid is finished, when the container body 1 of the container body A is released from the pressure, the container body 1 is restored, and the inside of the container becomes negative pressure.
By releasing the pressurization of the content liquid, as shown in FIG. 5, there is no force to push the top wall 16 of the valve member C outward, and the flow hole in the top wall 12 of the dispensing tube 8 of the inner plug B is removed. 13 and the top wall 16 between the top wall 16 of the valve member C and the pouring hole 19 of the valve member C are in close contact with each other, and the flow path f is blocked and sealed.

At this time, the pressure in the space e is also negative, and the inner peripheral surface of the valve cylinder 17 of the valve member C is pulled inward.
Thereby, the close contact between the end portion of the valve cylinder 17 and the inner peripheral surface of the outer protrusion 10 of the inner plug B is released, and air is introduced from the outside of the container because the inside of the container has a negative pressure using the gap as a flow path.

Air enters the space e from the gap between the end of the valve cylinder 17 and the inner peripheral surface of the outer protrusion 10 of the inner plug B, passes through the communication port 9 of the inner plug B, and is introduced into the container. The container body 1 of the container body A is completely restored, and the force that pulls the inner peripheral surface of the valve cylinder 17 of the valve member C inward is also released, so that the valve cylinder 17 of the valve member C is released. Is restored, and the end of the valve cylinder 17 and the inner peripheral surface of the outer protrusion 10 of the inner stopper B are brought into close contact with each other to seal the inside of the container.
As a result, as shown in FIG. 3A, the space between the top wall 16 of the valve member C and the top wall 12 of the inner plug B is sealed, and the content liquid is prevented from flowing out of the container. It will be.

  Since the dispensing container of the present invention can open and close the flow path f between the valve member C and the inner plug B by pressing the container body 1 of the container body A, the dispensing container 19 can be opened from the dispensing hole 19 of the valve member C. The content liquid can be dropped.

  When the use of the container is finished, the container is returned to the upright position, the overcap D is screwed onto the mouth tube portion 2 of the container body A, and the inside of the container is closed.

  When the lid of the present invention is closed, the lower end of the sealing ring 25 of the overcap D and the inner peripheral lower end of the upper side peripheral wall 21 press the top wall 16 and the valve cylinder 17 of the valve member C. The sealing is further strengthened, and even if the container body 1 is pressed by mistake, the liquid contents are prevented from leaking out of the container.

  In addition, since the lower end of the upper peripheral wall 21 of the overcap D is in close contact with the upper end of the outer protrusion 10 of the inner plug B to seal the inside of the container, the mouth tube portion 2 of the container body A and the lower peripheral wall 23 of the overcap D The foreign matter such as moisture and dust from the outside of the container is prevented from entering the container through the gap of the screw.

  Since the dispensing container of the present invention only attaches the soft material valve member to the dispensing tube of the inner plug, the number of members can be reduced and the production cost can be reduced.

  The dispensing container of the present invention can open and close the flow path by deforming the top wall of the valve member by pressing the container body simply by attaching the soft material valve member to the dispensing tube of the inner plug. Thus, foreign matter can be prevented from entering the container through the pouring hole, and can be widely used as a pouring container capable of pouring the content liquid of chemicals such as eye drops in a dripping manner. .

It is a cross-sectional elevation view of the present invention dispensing container. It is explanatory drawing of an inside plug, (a) is a cross-sectional elevation view, (b) is a bottom view. It is explanatory drawing near a container mouth cylinder part, (a) is sectional drawing at the time of lid opening, (b) is sectional drawing at the time of lid closing. It is explanatory drawing at the time of a container trunk | drum press after a container inversion. It is explanatory drawing immediately after releasing the press of a container trunk | drum.

Explanation of symbols

A Container body B Inner plug C Valve member D Overcap e Space f Flow path 1 Container body portion 2 Mouth tube portion 3, 24 Screw 4, 18 Engaging recess 5 Upper wall portion 6 Inner tube 7 Connecting piece 8 Outlet tube 9 Communication port 10 Outer protrusion 11 Inner protrusion 12, 16, 20 Top wall 13 Flow hole 14 Engaging protrusion
DESCRIPTION OF SYMBOLS 15 Tube part 17 Valve cylinder 19 Outlet hole 21 Upper side surrounding wall 22 Step part 23 Lower side surrounding wall 25 Sealing ring

Claims (4)

A container body that stores the liquid contents and can be squeezed and deformed, an inner stopper that is attached to the mouth tube portion of the container body, a valve member that is formed of a soft material that fits into the inner stopper, and a container mouth tube portion A pouring container comprising an overcap to be fitted,
The inner plug has an upper wall portion in which an outer protrusion and an inner protrusion are erected, an inner tube that is suspended from a central portion of the upper wall portion, and engages with an inner periphery of the mouth tube portion of the container body, and an upper wall portion A pouring tube that is erected through a connecting piece at the center of the pier, and has a circulation hole formed around the center of the top wall;
The valve member includes a cylindrical portion that engages with the inner tube of the inner plug, a top wall that has an outlet hole in the center and covers the top wall of the inner tube of the inner plug, and an upper wall of the inner plug A pouring container comprising a valve cylinder engaged with an outer protrusion of the portion.   The top wall of the valve member is deformed by the pressure of the container body, and a gap is formed between the top wall of the outlet tube of the inner plug, the flow hole in the top wall of the inner plug, and the outlet hole in the top wall of the valve member A pouring container according to claim 1, wherein a flow path is formed between them.   A space is formed by the inner periphery of the valve cylinder of the valve member, the upper wall portion of the inner plug and the outer periphery of the extraction tube, and the space communicates with the inside of the container body between the extraction tube and the upper wall portion of the inner plug. The dispensing container according to claim 1, wherein the end portion of the valve member of the valve member is joined to and detached from the outer protrusion of the upper wall portion of the inner plug by a pressing operation of the container body.   The part of the peripheral wall of the overcap is in contact with the outer periphery of the valve cylinder of the valve member to press the end of the valve cylinder so as to closely contact the outer periphery of the inner protrusion of the upper wall of the inner plug. 1-3 extraction container.

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