JP2017043397A - Knock type container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a knock type container which can control the pouring amount of a content in a small amount, prevent the content from being jetted suddenly without providing a special air bleeding mechanism, and pour out a highly viscous content without a residue.SOLUTION: A knock type container comprises: a nozzle 2; an inside plug body 3 fitted inside the nozzle; a ball valve 4 held inside the inside plug body; a spring body 5 connected to the upper part of the inside plug body; a movable rod 6 connected to the upper part of the spring body; and a flexible barrel part 1 connected to the nozzle. The inside plug body has a ball valve storage chamber 3a formed between a retaining part 3b and a projection part 3c. The movable rod has a coating part 6a and an engaging part 6b. When the barrel part is pressed and the movable rod is pushed in, a content passes a gap between the ball valve and the ball valve storage chamber and is poured out from a tip of the nozzle. When the pressing of the barrel part is released, the ball valve and the projection part engage with each other to exert a check valve function.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a knock-type container, and more particularly to a knock-type container capable of controlling the amount dispensed.

  In the conventional knock-type container shown in FIG. 7, a nozzle-shaped inner plug body 52 is fitted in a mouth portion 51 of a container 50 having resilience. A knock body 55 having a base cylinder portion 53, a spring body 54 and a movable rod 55a is inserted into the inner plug body 52. The movable rod 55a always closes the distal end opening of the inner plug body 52 by the biasing force of the spring body 54, and can be opened by pushing the movable rod 55a into the inner plug body 52. When the contents are poured out, the movable rod 55a is pressed against the application part such as the skin. There exists patent document 1 as a prior art document regarding such a knock type container.

Japanese Utility Model Publication No. 62-42551

However, the conventional knock type container has the following drawbacks.
When the user desires a small amount of contents, even if the amount of pushing of the movable rod is adjusted, a large amount of contents are poured out, and it is difficult to control the amount of dispensing.
In addition, when the contents contain volatile substances such as alcohol, the pressure in the container rises due to the volatilization of the contents, so when the movable rod is pressed, the contents suddenly spout due to the container internal pressure. there were. Furthermore, since the container has the restoring property, the volatilization of the contents was remarkable. Therefore, it is necessary to provide a special air bleeding mechanism.
In addition, when the content is a high-viscosity substance having poor fluidity, there is a drawback that a large amount of the content remains in the container.
In the present invention, even when a small amount of content is dispensed, the amount of dispensing can be controlled, and a special air venting mechanism can be provided to prevent sudden ejection of the content. An object of the present invention is to provide a knock type container that can be poured without leaving high-viscosity contents.

  In order to solve this problem, the solution means of the invention according to claim 1 includes a nozzle, an inner plug fitted in the nozzle, a ball valve held in the inner plug, and the inner plug. A knock type container comprising a spring body connected to an upper portion of the spring body, a movable rod connected to the upper portion of the spring body, and a flexible body portion connected to the nozzle. Has a ball valve storage chamber formed between the retaining portion and the protruding portion, and the movable rod has a coating portion and an engaging portion.

  According to a second aspect of the present invention, the knock type container is a tube container.

  The solving means of the invention described in claim 3 is characterized in that the knock type container is a bottle container.

  According to the knock type container according to the present invention, even when a small amount of content is poured out, the amount poured out can be controlled, and when the content contains a volatile substance such as alcohol. Without providing a special air venting mechanism, it is possible to prevent the contents from being ejected suddenly, and even if it is a high-viscosity substance with poor fluidity, it is possible to dispense without leaving any residue.

It is side surface sectional drawing which shows one Embodiment of the knock type container of this invention. It is side surface sectional drawing to which the nozzle of the knock type container of FIG. 1 was expanded. FIG. 3 is an enlarged side cross-sectional view of an inner stopper body of the knock type container of FIG. 1. It is side surface sectional drawing which shows the use condition of the knock type container of FIG. It is side surface sectional drawing which shows another embodiment of the knock type container of this invention. It is side surface sectional drawing which shows the state which decomposed | disassembled the knock type container of FIG. It is a partially expanded side sectional view which shows the conventional knock type container.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  The tube container T shown in FIGS. 1-4 has shown one Embodiment of the knock type container which concerns on this invention. The tube container T has a body 1 and a nozzle 2. The nozzle 2 has a mouth 2a, a neck 2b, and a shoulder 2c. And the front-end | tip part 1a of the trunk | drum 1 and the shoulder part 2b of the nozzle 2 are connected by welding. Moreover, the bottom part on the opposite side of the front-end | tip part 1a is closed by the flattened seal part. In addition, the trunk | drum 1a has flexibility, the member which rounded the sheet material which laminated | stacked the synthetic resin layers, such as an aluminum foil layer and polyethylene, and formed in the cylinder shape, polyethylene, ethylene vinyl alcohol copolymer A member obtained by extruding a single-layer or multilayer synthetic resin such as the above into a cylindrical shape may be used. Moreover, the nozzle 2 may be thicker than the thickness of the trunk | drum 1a, and synthetic resins, such as polyethylene, may be shape | molded by injection molding, compression molding, etc. Further, the neck portion 2b of the nozzle 2 may be formed on the outer surface thereof with a covered portion such as a male screw to which a cap (not shown) can be attached and detached.

  Inside the nozzle 2 of the tube container T, the inner plug body 3 is fitted by a stopper or the like. As shown in FIG. 2, the inner plug body 3 is a hollow cylindrical body. A ball valve storage chamber 3a for holding the ball valve 4 is formed upward from the lower end opening of the cylindrical body, and a passage 3d is formed downward from the upper end opening of the cylindrical body. Further, a retaining portion 3b and a protruding portion 3c are formed at the upper and lower portions of the ball valve storage chamber 3a, respectively. The retaining portion 3b is provided so as to protrude in the radial direction so that the ball valve 4 does not escape upward. The retaining portions 3b may be formed at several locations in the circumferential direction, for example, at 3-4 locations. The protruding portion 3c is formed so as to protrude in the radial direction, and the ball valve 4 is engaged when the contents are not poured out (when the trunk portion 1 of the tube container T is not pressed). In other words, the protrusion 3c and the ball valve 4 have a check valve function that prevents the outside air from being sucked into the container. The ball valve 4 is driven and inserted into the ball valve storage chamber 3a from below the protrusion 3c. Therefore, it is preferable that the protrusion 3c has a shape that does not hinder the sealing performance by the ball valve or the insertion of the ball valve. Moreover, it is preferable that the inner diameter of the ball valve storage chamber 3a is slightly larger than the diameter of the ball valve 4, and that the ball valve 4 has a gap that allows the ball valve storage chamber 3a to move up and down. The vertical movement of the ball valve 4 is regulated by the retaining portion 3b and the protruding portion 3c, and the movable distance can be appropriately changed according to the viscosity of the contents. For example, if the viscosity of the contents is high, the moving distance in the direction in which the ball valve 4 moves up and down is increased. If the viscosity of the contents is low, the moving distance in the direction in which the ball valve 4 moves up and down is decreased. Can do. In addition, rotation prevention means (not shown) such as vertical ribs may be provided on the inner surface of the nozzle 2 and the outer surface of the inner plug body 3 so that the nozzle 2 and the inner plug body 3 do not rotate with each other.

  Next, the spring body 5 is connected to the upper end of the inner plug body 3 by integral molding. A movable rod 6 is coupled to the upper end of the spring body 5 by integral molding, and the movable rod 6 is urged by the spring body 5 so as to be movable up and down. The movable rod 6 has an application part 6a that can apply the contents to the application part when the contents are poured out. The movable rod 6 has an engaging portion 6b that is detachably engaged with an inward flange formed at the tip of the mouth portion 2a of the nozzle 2, and the movable rod 6 moves up and down. Thus, the mouth portion 2a can be closed and opened. In this embodiment, the spring body 5 and the movable rod 6 are integrally formed with the inner plug body 3 by injection molding or the like, but at least one of the inner plug body 3, the spring body 5 and the movable rod 6 is used. The two may be formed separately and connected by a method such as fitting or welding. Moreover, although the spring body 5 has formed several string-like bodies in the spiral shape, you may form one string-like body in the coil shape. Further, a groove 6c for liquid passage may be provided vertically on the side surface of the movable rod 6. The groove 6c may be formed at several locations in the circumferential direction, for example, at an equal interval of 2 to 3 locations.

  Next, the usage method of the tube container T is demonstrated. First, as shown in FIG. 4, the tube container T is inverted, the body 1 is pressed, and the inside of the container is pressurized. Then, the ball valve 4 moves to release the engagement with the protrusion 3c and engage with the retaining portion 3b. That is, the body 1 and the ball valve storage chamber 3a communicate with each other, and the contents in the body 1 flow into the ball valve storage chamber 3a. Subsequently, the contents pass around the ball valve 4 and flow into the passage 3d and the mouth portion 2a. Here, the application portion 6 a of the movable rod 6 is brought into contact with the application portion such as skin, and the movable rod 6 is pushed into the nozzle 2 against the urging force of the spring body 5. Then, the engagement between the engaging portion 6b and the inward flange of the mouth portion 2a is released (the mouth portion 2a is opened), and the contents are poured out from the tip of the mouth portion 2a. At this time, the contents in the body portion 1 pass through a slight gap formed by the ball valve 4, the ball valve storage chamber 3a, and the retaining portion 3b, thereby restricting the flow into the passage 3d and the mouth portion 2a. ing. Therefore, a large amount of contents are prevented from being poured out immediately after the movable rod 6 is pushed in. When the pushing force of the movable rod 6 is released, the urging force of the spring body 5 engages the engaging portion 6b with the inward flange at the tip of the mouth portion 2a, and the mouth portion 2a is closed. That is, the content dispensing stops.

  On the other hand, when the pressure on the body 1 is stopped, the ball valve 4 moves and engages with the protrusion 3c. That is, since the check valve function is exhibited, the outside air is prevented from being sucked into the body portion 1. Therefore, every time the body part 1 is pressed, the body part 1 of the tube container T is deformed and deformed, and the space in the body part 1 is reduced, so that volatilization of the volatile substance is suppressed. Therefore, it is not necessary to provide a special air venting mechanism, and the contents can be prevented from being ejected. Moreover, even if the contents are a high-viscosity substance, the contents can be easily poured out by forming the body 1 of the tube container T from a flexible material. The timing for stopping the pressing operation of the body portion 1 may be at any stage before, after or during the pressing operation of the movable rod 6. For example, when the contents are continuously extracted, the amount of extraction may be adjusted by adjusting the pressure on the body 1 while continuing the pushing operation of the movable rod 6.

  The bottle container B shown in FIGS. 5 and 6 shows another embodiment of the knock type container according to the present invention. Although the bottle container B has the flexible trunk | drum 11 similarly to embodiment of FIGS. 1-4, FIG. 1-4 is a point by which the trunk | drum 11 and the nozzle 12 are separate bodies. Is different. Further, the bottle container B has a shoulder portion 11 a and a neck portion 11 b at the upper portion of the body portion 11. On the other hand, the nozzle 12 has a mouth portion 12a and a base tube portion 12b. When the base tube portion 12 b is fitted into the mouth portion 11 b of the bottle container B, the body portion 1 of the bottle container B and the nozzle 12 are connected. Subsequently, the inner plug 13 has the same configuration as the embodiment of FIGS. 1 to 4 and is fitted in the nozzle 12. Also in this embodiment, as shown in FIG. 4, when the body part 11 of the bottle container B is pressed, the ball valve 14 moves, and the contents in the body part 11 are moved to the ball valve 14 in the ball valve storage chamber 13a. And flows into the passage 13d and the mouth portion 12a. When the movable rod 16 is pushed in, the contents are poured out from the tip of the mouth portion 12a. At this time, a large amount of contents are prevented from being poured out. In addition, the check valve function of the ball valve 14 and the protrusion 13c can prevent ejection of contents due to volatilization of volatile substances without providing a special air venting mechanism. Furthermore, even if the contents are a high-viscosity substance, the contents can be easily poured out because the bottle container B is made of a flexible material. In the bottle container B, the body part 11, the shoulder part 11a, and the neck part 11b may be integrally formed by blow molding a single-layer or multilayer synthetic resin such as polyethylene or ethylene vinyl alcohol copolymer. And you may form to-be-covered parts, such as a male screw which can attach or detach the cap which is not shown in figure on the outer surface of the neck part 11b. Further, as shown in FIG. 5, the bottle container B may be formed with a self-supporting bottom portion having a grounding surface at the lower end of the body portion 11. However, as shown in the embodiment of FIGS. 1 to 4, a tube container in which the bottom part of the bottle container B is replaced with a flattened seal part may be used.

  The knock-type container according to the present invention can control the amount dispensed even with a small amount of content, and can prevent sudden bursting of the content, such as cosmetics, drugs, adhesives, etc. It can be widely used as a container for storing contents.

T tube container B bottle container 1, 11 body 2, 12 nozzle 2 a, 12 a mouth 2 b, 11 b neck 2 c, 11 a shoulder 3, 13 inner plug body 3 a, 13 a ball valve storage chamber 3 b, 13 b retaining part 3 c, 13 c Protrusions 3d and 13d Passages 4 and 14 Ball valves 5 and 15 Spring bodies 6 and 16 Movable rods 6a and 16a Coating portions 6b and 16b Engaging portions 6c and 16c Groove portions

Claims (3)

A nozzle, an inner plug fitted in the nozzle, a ball valve held in the inner plug, a spring connected to the upper part of the inner plug, and an upper part of the spring In a knock type container provided with a movable rod and a flexible body connected to the nozzle,
The inner plug body has a ball valve storage chamber formed between the retaining portion and the protruding portion,
The knockable container, wherein the movable rod has an application part and an engagement part.   The knock type container according to claim 1, wherein the knock type container is a tube container.   The knock type container according to claim 1, wherein the knock type container is a bottle container.

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