container

Abstract

To improve the sealability of a container body.SOLUTION: A container 1 includes: a container body 10 having a body 12 that forms a liquid storage space and a body cylinder 14 that communicates with the storage space; a dispensing unit 20 that is movably engaged with the body cylinder 14 in the axial direction of the body cylinder 14 and that dispenses the liquid contained in the storage space; and a middle plug 50 that is located inside the body cylinder 14 and the body 12. The middle plug 50 has a middle plug tube 51 having a cylindrical shape and a middle plug pipe 58 that serves as a flow path for the liquid contained in the storage space, and the discharger 20 has a discharger pipe 37 with a tip inserted into the middle plug pipe 58, and a discharger tube portion 35d, which overlaps the middle plug tube 51 on the axial direction of the body cylinder 14 and moves in the axial direction of the body cylinder 14 while maintaining the contact with the inner circumference of the middle plug tube 51 when the discharger 20 is raised or lowered with respect to the container body 10.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to a container. [Background technology]

[0002] In recent years, containers having a container body that contains a liquid material and a dispenser that sucks the liquid material from the container body and dispenses it have become widely used. Patent Document 1 discloses a container that includes, in addition to the container body and the dispenser, an inner stopper that has a flow tube into which an introduction part of the dispenser is inserted. When the dispenser is removed from the container body, the dip tube remains connected to the flow tube of the inner stopper in the container body, making it difficult for the surrounding area to become dirty. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2011-31981 Summary of the Invention [Problem to be solved by the invention]

[0004] If the liquid contained in the container body has a tendency to solidify, clogging may occur if the liquid remains in the dispenser for a long period of time. In this regard, a user can, for example, remove the dispenser from the container body and have the dispenser dispense the liquid (hereinafter also referred to as suction-free dispensing), which will prevent the liquid from remaining in the dispenser. However, it is cumbersome for the user to remove the dispenser from the container body every time suction-free dispensing is performed. Furthermore, even if suction-free dispensing can be performed when the engagement between the dispenser and the container body is loosened, the seal of the container body is lost in this state, and the liquid will spill out of the container body if the container body falls over.

[0005] The present invention relates to a container that improves the sealing performance of the container body. [Means for solving the problem]

[0006] In order to solve the above-mentioned problems, one aspect of the present invention relates to a container comprising: a container body having a body portion that forms a storage space for a liquid material and a tubular main body portion that is connected to the storage space; a dispenser that engages with the tubular main body portion so as to be able to move along the axial direction of the tubular main body portion and dispenses the liquid material stored in the storage space; and a stopper located inside the tubular main body portion and the body, wherein the stopper has a tubular stopper portion and a stopper tube portion that serves as a flow path for the liquid material stored in the storage space, and the dispenser has a dispenser tube portion whose tip is inserted into the stopper tube portion, and a dispenser tube portion that overlaps the stopper tube portion in the axial direction of the tubular main body portion and moves along the axial direction of the tubular main body portion while maintaining contact with the inner periphery of the stopper tube portion as the dispenser moves up and down relative to the container body. [Effects of the Invention]

[0007] As described above, according to the container of the present invention, it is possible to improve the sealing performance of the container body. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is an explanatory diagram showing the external configuration of a container 1 according to an embodiment of the present invention. [Figure 2] 1 is a partial cross-sectional view of a trigger dispenser 20 according to one embodiment of the present invention. [Figure 3] 2 is an explanatory diagram showing the cross-sectional configuration of an inside plug 50 and a container body 10. FIG. [Figure 4] FIG. [Figure 5] 1 is a partial cross-sectional view of the container 1 in a state where the mounting cap 22 of the trigger-type dispenser 20 has been completely screwed onto the cylindrical main body portion 14. FIG. [Figure 6] 1 is a partial cross-sectional view of the container 1 in a state where the trigger-type dispenser 20 is in a position where the mounting cap 22 of the trigger-type dispenser 20 and the cylindrical main body portion 14 are no longer screwed together. [Figure 7] FIG. 10 is an explanatory view showing an inside plug 60 according to a first modified example. [Figure 8]FIG. 10 is an explanatory view showing an inside plug 70 according to a second modified example. [Figure 9] 10 is an explanatory diagram showing an inside plug 50 and a dispenser cylindrical portion 82 according to a third modified example. FIG. [Figure 10] 10 is an explanatory view showing an inside plug 90 and a dispenser cylindrical portion 35d according to a fourth modified example. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In this specification and drawings, components having substantially the same functional configurations are designated by the same reference numerals, and redundant explanations will be omitted.

[0010] <Container configuration> An embodiment of the present invention relates to a container for storing and dispensing a liquid material. The external configuration of a container according to an embodiment of the present invention will be described with reference to Fig. 1 .

[0011] 1 is an explanatory diagram showing the external configuration of a container 1 according to one embodiment of the present invention. As shown in FIG. 1, the container 1 according to one embodiment of the present invention has a container body 10 and a trigger-type dispenser 20.

[0012] (Container body) The container body 10 has a body portion 12 and a tubular body portion 14. The body portion 12 forms a space for storing a liquid. The liquid stored in the body portion 12 may be a liquid, gel, or paste. Liquids, gels, and pastes all have fluidity in common, but liquids do not have a fixed shape, while gels and pastes are semi-solid and may temporarily have a fixed shape. Specifically, the liquid stored in the container body 10 may be liquid detergent, fabric softener, bleach, shampoo, rinse, conditioner, body soap, cosmetic liquid, medicine, liquid seasoning, etc.

[0013] The tubular main body portion 14 is a hollow portion that connects to the storage space formed by the barrel portion 12. The trigger-type dispenser 20 is attached to the container body 10 by engaging the trigger-type dispenser 20 with the outer periphery of the tubular main body portion 14. For example, the tubular main body portion 14 and the trigger-type dispenser 20 are engaged by screwing. Therefore, the trigger-type dispenser 20 can move along the axial direction of the tubular main body portion 14 as the screwing with the tubular main body portion 14 advances or loosens. The engagement between the tubular main body portion 14 and the trigger-type dispenser 20 may be by a stoppering method, or by other methods such as a method of fastening by driving a wedge.

[0014] Such a container body 10 may be made of, for example, PE (polyethylene), PP (polypropylene), PET (polyethylene terephthalate), ABS (acrylonitrile-butadiene-styrene copolymer synthetic resin), acrylic, polyester, PCT (polycyclohexylene-dimethylene terephthalate), or SAN (styrene-acrylonitrile copolymer), or may be a laminate of two or more of these materials.

[0015] (Trigger-type dispenser) The trigger-type dispenser 20 is an example of a dispenser that dispenses a liquid material contained in a container body 10. As shown in FIG. 1, the trigger-type dispenser 20 has an attachment cap 22, a nozzle 24, and an operating lever 26. The attachment cap 22 is a part that engages with the main body tubular portion 14 of the container body 10. The nozzle 24 dispenses the liquid material. The operating lever 26 is a part that is operated by the user.

[0016] When a user applies force toward the attachment cap 22, the operating lever 26 rotates around a rotation axis formed within the trigger-type dispenser 20 so as to approach the attachment cap 22. The movement of the operating lever 26 causes the liquid material contained in a pump chamber formed within the trigger-type dispenser 20 to be pushed out of the pump chamber and dispensed from the nozzle 24. Furthermore, when the force on the operating lever 26 is released, the operating lever 26 rotates around the rotation axis so as to move away from the attachment cap 22. The movement of the operating lever 26 causes the liquid material to be sucked from the container body 10 into the pump chamber within the trigger-type dispenser 20.

[0017] Instead of the trigger-type dispenser 20, other dispensers such as a pressure-type dispenser may be used.

[0018] In one embodiment of the present invention, an inner plug is provided between the trigger-type dispenser 20 and the container body 10. Below, the trigger-type dispenser 20 will be described in more detail, and then the configuration of the inner plug will be described.

[0019] <Detailed configuration of trigger-type dispenser> Figure 2 is a partial cross-sectional view of a trigger-type dispenser 20 according to one embodiment of the present invention. As shown in Figure 2, the trigger-type dispenser 20 generally comprises a main body 30 incorporating a pump 40 capable of sucking and pumping the liquid material in the container body 10, an operating lever 26 (trigger) provided on the front side of the main body 30 and actuating the pump 40 when pulled relative to the main body 30, and a nozzle 24 provided at the front end of the main body 30 and actuating the pump 40 to dispense the liquid material to the outside.

[0020] In this specification, the direction in which the liquid material is discharged from the nozzle 24 will be referred to as "forward," and the opposite direction will be referred to as "rearward." Furthermore, the side of the axial direction of the cylindrical main body 14 from the container body 10 toward the trigger-type dispenser 20 (the side opposite the container body 10 when viewed from the trigger-type dispenser 20) will be referred to as the "upper side," and the opposite side (the container body 10 side when viewed from the trigger-type dispenser 20) will be referred to as the "lower side," and the axial direction of the cylindrical main body 14 will sometimes be referred to as the up-down direction. However, the up-down direction referred to here is merely a direction defined for the convenience of explanation and does not necessarily coincide with the up-down direction in actual use.

[0021] As shown in Figure 2, the main body 30 comprises an attachment cap 22 configured to be attachable to the main body tube portion 14 of the container body 10, a vertical tube portion 34 extending upward from the attachment cap 22 (opposite the container body 10), a horizontal tube portion 36 extending forward (in the direction of discharging the liquid material) from the upper end of the vertical tube portion 34 (the end opposite the attachment cap 22) and connected to the nozzle 24, a cylindrical holding portion 38 extending forward from the middle of the vertical tube portion 34, a pump 40 held within the holding portion 38, and a head cover 28 covering the main body 30 (vertical tube portion 34, horizontal tube portion 36 and holding portion 38).

[0022] As shown in FIG. 2, the vertical tube portion 34 has a cylindrical neck portion 32 at its lower end, which is inserted into an upper opening (not shown) of the attachment cap 22. The neck portion 32 has a smaller width (i.e., diameter) in a direction intersecting the swing direction of the operating lever 26 than the attachment cap 22. The vertical tube portion 34 also has a cylindrical intake 35 therein. The lower end of the intake 35 is connected to a pipe 37 extending inside the container body 10, and the upper end of the intake 35 is connected to the rear end of the horizontal tube portion 36. Thus, a delivery path from the container body 10 to the nozzle 24 is formed by the pipe 37, intake 35, and horizontal tube portion 36. The pipe 37 is an example of a dispenser tube, and as shown in FIG. 2, it protrudes below the lower end of the attachment cap 22.

[0023] The intake 35 is formed with a communication hole 35a that communicates with a pump chamber 46 (described later), and is provided with a suction valve 35b and a discharge valve 35c on the upstream and downstream sides of the communication hole 35a, respectively, so that operation of the pump 40 can suck liquid from the container body 10 into the pump chamber 46 and pump it from the pump chamber 46 to the nozzle 24. The intake 35 also has a discharger tubular portion 35d with a constant outer diameter. An annular gasket 39 is provided on the outer periphery of the discharger tubular portion 35d.

[0024] As shown in FIG. 2, the pump 40 includes a cylindrical cylinder 42 fitted and held in the holder 38, and a piston 44 reciprocally accommodated inside the cylinder 42. The piston 44 has a smaller diameter than the cylinder 42, thereby forming a gap between the outer circumferential surface of the piston 44 and the inner circumferential surface of the cylinder 42. An annular seal portion 45 protrudes from the rear end of the piston 44 and slidably and liquid-tightly contacts the inner circumferential surface of the cylinder 42. The seal portion 45 seals the inside of the cylinder 42, thereby forming a pump chamber 46 behind the seal portion 45. The annular shape surrounds a certain area. The front end of the piston 44 engages with the operating lever 26, and a coil spring 47 provided inside the piston 44 biases the operating lever 26 in a direction that pushes back the operating lever 26 (in the direction of expanding the pump chamber 46). Note that instead of the coil spring 47, another elastic body such as a leaf spring may be used to bias the operating lever 26.

[0025] As shown in Figure 2, the operating lever 26 has a lever main body portion 26A whose base end is swingably supported on the horizontal tube portion 36 of the main body portion 30 so as to extend from the horizontal tube portion 36 toward the container main body 10, and a pair of guide portions 26B (only one of the guide portions 26B is shown in Figure 2) formed to protrude from the lever main body portion 26A toward the vertical tube portion 34 so as to sandwich a part of the main body portion 30 (cylinder 42 in this embodiment).

[0026] 2, the upper end (base end) of the lever main body 26A is pivotally mounted to the tip end side of the horizontal cylinder 36 of the main body 30 so as to be able to swing, and is provided hanging down from the horizontal cylinder 36 downward (towards the container body 10) so as to face the vertical cylinder 34, the holding portion 38, and the attachment cap 22. The rear surface of the lever main body 26A is engaged with the front end of the piston 44 as described above, and is configured so that the piston 44 is reciprocated by the reciprocating movement of the lever main body 26A.

[0027] <Inner stopper configuration> The configuration of the trigger-type dispenser 20 according to one embodiment of the present invention has been described above. Next, the configuration of the inside plug 50 according to one embodiment of the present invention will be described.

[0028] Fig. 3 is an explanatory diagram showing the cross-sectional configuration of the inside plug 50 and the container body 10. Fig. 4 is a top view of the inside plug 50. As shown in Figs. 3 and 4, the inside plug 50 is located inside the body portion 12 and the tubular main body portion 14. The inside plug 50 has a tubular inside plug portion 51, a protruding portion 55, a bottom portion 57, and an inside plug tube portion 58.

[0029] The inner plug tube portion 51 has a cylindrical shape. In the example shown in FIG. 3 , the inner plug tube portion 51 is composed of an upper tube portion 52 and a lower tube portion 53. The inner diameters of the upper tube portion 52 and the lower tube portion 53 are constant, and the inner diameter of the upper tube portion 52 is larger than the inner diameter of the lower tube portion 53. The upper tube portion 52 is an example of a first region that contacts the dispenser tube portion 35d of the trigger-type dispenser 20. The lower tube portion 53 is an example of a second region that is located between the upper tube portion 52 and the inner plug tube portion 58. The lower tube portion 53 may have a tapered shape such that the inner diameter becomes smaller on the lower side. The upper tube portion 52 may also have a slight taper within a range that maintains surface contact with the dispenser tube portion 35d.

[0030] The protruding portion 55 is an annular portion that protrudes outward from the upper end of the upper tubular portion 52. The protruding portion 55 abuts against the upper end of the tubular main body portion 14 as shown in Fig. 3, thereby supporting the inside plug 50 on the tubular main body portion 14. Note that the inner periphery of the tubular main body portion 14 and the outer periphery of the upper tubular portion 52 are in close contact with each other, and therefore the inside plug 50 is supported on the tubular main body portion 14 also by this close contact.

[0031] The bottom portion 57 extends from the lower end of the lower cylindrical portion 53 to the inside of the lower cylindrical portion 53. A plurality of openings 54 are formed across the bottom portion 57 and the lower cylindrical portion 53.

[0032] The inner plug tube portion 58 is a portion that serves as a flow path for the liquid contained in the storage space of the body portion 12. The pipe 37 of the trigger-type dispenser 20 is inserted into the inner plug tube portion 58 through an upper opening 58a, which is the opening on the upper side of the inner plug tube portion 58.

[0033] <Cross-sectional structure of the container> The configuration of the inside stopper 50 has been described above. Next, the cross-sectional configuration of the container 1 including the container body 10, the trigger-type dispenser 20, and the inside stopper 50 will be described with reference to Figures 5 and 6. Figure 5 is a partial cross-sectional view of the container 1 in a state where the attachment cap 22 of the trigger-type dispenser 20 has been completely threaded onto the tubular main body portion 14. Figure 6 is a partial cross-sectional view of the container 1 in a state where the attachment cap 22 of the trigger-type dispenser 20 is in a position where it has been unthreaded from the tubular main body portion 14.

[0034] 5, when the attachment cap 22 of the trigger-type dispenser 20 is completely threaded onto the tubular main body portion 14, the protruding portion 55 of the inner plug 50 is pressed against the gasket 39 of the trigger-type dispenser 20. Furthermore, the dispenser tubular portion 35d of the trigger-type dispenser 20 overlaps the upper tubular portion 52 of the inner plug 50 in the vertical direction, and is in surface contact with the inner circumferential surface of the upper tubular portion 52. Therefore, when the attachment cap 22 of the trigger-type dispenser 20 is completely threaded onto the tubular main body portion 14, the liquid material is prevented from leaking from the container body 10 and the trigger-type dispenser 20.

[0035] Furthermore, when the mounting cap 22 of the trigger-type dispenser 20 is completely screwed onto the tubular main body portion 14, the tip of the pipe 37 of the trigger-type dispenser 20 is inserted into the inner plug tube portion 58 of the inner plug 50. The outer circumferential surface of the pipe 37 is in surface contact with the inner circumferential surface of the inner plug tube portion 58. This makes it possible to suck the liquid into the pump chamber 46 via the inner plug tube portion 58 and the pipe 37.

[0036] Here, the length d1 by which the pipe 37 is inserted into the inner plug tube portion 58 is shorter than the length d2 by which the dispenser tube portion 35d of the trigger-type dispenser 20 and the upper tube portion 52 of the inner plug 50 overlap. Also, the length d3 (see FIG. 6) in the vertical direction between the position where the screw engagement between the mounting cap 22 of the trigger-type dispenser 20 and the main body tube portion 14 is released and the position where the screw engagement is completed is longer than the length d1 by which the pipe 37 is inserted into the inner plug tube portion 58.

[0037] <Action and effect> According to the embodiment of the present invention described above, a variety of effects can be achieved. For example, the dispenser tubular portion 35d of the trigger-type dispenser 20 overlaps the upper tubular portion 52 of the inside plug 50 in the vertical direction and makes surface contact with the inner circumferential surface of the upper tubular portion 52. Therefore, when the trigger-type dispenser 20 moves up and down relative to the container body 10 as the screw connection between the attachment cap 22 and the tubular body portion 14 is loosened or advanced, the dispenser tubular portion 35d moves up and down while maintaining contact with the upper tubular portion 52. Therefore, even if the screw connection between the attachment cap 22 and the tubular body portion 14 is loosened and the protruding portion 55 of the inside plug 50 and the gasket 39 of the trigger-type dispenser 20 no longer make contact, the sealability of the container 1 can be maintained due to the contact between the dispenser tubular portion 35d and the upper tubular portion 52.

[0038] Furthermore, according to one embodiment of the present invention, the length d1 by which the pipe 37 is inserted into the inner plug tube portion 58 is shorter than the length d2 by which the dispenser tubular portion 35d of the trigger-type dispenser 20 and the upper tubular portion 52 of the inner plug 50 overlap. Therefore, even when the pipe 37 is removed from the inner plug tube portion 58, the dispenser tubular portion 35d and the upper tubular portion 52 are in contact as shown in FIG. 6 , thereby maintaining the sealing of the container 1. For example, in the state shown in FIG. 6 , a user can operate the operating lever 26 to cause the trigger-type dispenser 20 to dispense the liquid material from the trigger-type dispenser 20 without suctioning the liquid material from the container body 10 (suction-free dispensing). According to one embodiment of the present invention, this suction-free dispensing can be achieved while maintaining the sealing of the container 1. Therefore, even if the container 1 falls over during suction-free dispensing, the liquid material can be prevented from spilling from the container body 10. Furthermore, by performing suction-free discharge, it is possible to prevent the liquid remaining in the trigger-type dispenser 20 from solidifying and causing clogging, as well as to prevent poor discharge caused by clogging, etc.

[0039] Furthermore, according to one embodiment of the present invention, the vertical length d3 between the position where the mounting cap 22 of the trigger-type dispenser 20 and the tubular body portion 14 are unscrewed and the position where the screwing is complete is longer than the length d1 by which the pipe 37 is inserted into the inner plug tube portion 58. Therefore, before the mounting cap 22 of the trigger-type dispenser 20 and the tubular body portion 14 are loosened to the screwing position, the pipe 37 comes out of the inner plug tube portion 58, as shown in Figure 6. This allows the user to achieve suction-free dispensing while maintaining the screwing between the mounting cap 22 of the trigger-type dispenser 20 and the tubular body portion 14, which is highly convenient.

[0040] Furthermore, according to one embodiment of the present invention, the inner plug tube portion 58 forms a flow path together with the pipe 37, so it is possible to shorten the length of the pipe 37. Therefore, when the trigger-type dispenser 20 is removed from the container body 10, liquid adhering to the pipe 37 is less likely to soil the surrounding area.

[0041] Furthermore, according to one embodiment of the present invention, a plurality of openings 54 are formed in the inside plug 50. Therefore, with the trigger-type dispenser 20 removed from the container body 10, it is possible to refill the container body 10 with a liquid refill material through the openings 54.

[0042] <Modification> An embodiment of the present invention has been described above. Below, several modified examples of the above-described embodiment will be described. Note that each modified example described below may be applied alone to the above-described embodiment, or may be applied in combination with the above-described embodiment. Furthermore, each modified example may be applied in place of the configuration of the above-described embodiment, or may be applied in addition to the configuration of the above-described embodiment.

[0043] (First Modification) The first modified example relates to a device that makes it difficult for the liquid in the inner plug tube part 58 to return to the container body 10 when the pipe 37 is removed from the inner plug tube part 58. The first modified example will be described with reference to Fig. 7.

[0044] Fig. 7 is an explanatory diagram showing a first modified inside plug 60. As shown in Fig. 7, the inside plug 60 according to the first modified example has an inside plug cylindrical portion 51, a protruding portion 55, a bottom portion 57, and an inside plug tube portion 58. Unlike the inside plug 50 according to the above-described embodiment, a first protrusion 61, a ball valve 62, and a second protrusion 63 are provided inside the inside plug tube portion 58 of the inside plug 60 according to the first modified example.

[0045] The first protrusion 61 is an annular protrusion that protrudes from the inner periphery of the inner plug tube portion 58. The ball valve 62 is a ball valve formed of a sphere, and is supported by the first protrusion 61. The first protrusion 61 and the ball valve 62 function as a valve portion that restricts the movement of fluid from the upper opening 58a side to the storage space side inside the container body 10.

[0046] The second protrusion 63 is an annular protrusion that protrudes from the inner periphery of the inner plug tube portion 58, and is located closer to the upper opening 58a than the first protrusion 61 and the ball valve 62. The inner diameter of the second protrusion 63 is smaller than the maximum diameter of the ball valve 62.

[0047] According to this first modified example, when the pipe 37 is removed from the inner plug tube part 58 for dispensing without suction, for example, the function of the valve part makes it difficult for the liquid remaining in the inner plug tube part 58 to return to the container body 10. Therefore, when the pipe 37 is inserted into the inner plug tube part 58 again and the liquid is dispensed, it is possible to shorten the time required for initial priming.

[0048] Furthermore, since the second protrusion 63 restricts the movement of the ball valve 62, it is possible to prevent the ball valve 62 from coming off the inner plug 60 even if the inner plug 60 is tilted with the pipe 37 removed from the inner plug tube portion 58.

[0049] (Second Modification) Fig. 8 is an explanatory diagram showing a second modified inside plug 70. As shown in Fig. 8, the inside plug 70 according to the second modified example comprises a inside plug tubular portion 71, a protruding portion 75, a bottom portion 77, and an inside plug tube portion 78. Unlike the inside plug 50 according to the above-described embodiment, the inside plug tube portion 78 of the inside plug 70 according to the second modified example is located on the axis of the inside plug tubular portion 71 and the tubular main body portion 14. Accordingly, in the second modified example, the pipe 37 of the trigger-type dispenser 20 is also designed to be located on the axis of the tubular main body portion 14.

[0050] According to this second variant, when the user attaches the trigger-type dispenser 20 to the container body 10 and the inner stopper 70, the user does not need to be aware of the angle of the trigger-type dispenser 20 relative to the inner stopper 70, so the user can easily attach and detach the trigger-type dispenser 20.

[0051] (Third Modification) In the above embodiment, the inner periphery of the upper cylindrical portion 52 and the outer periphery of the discharger cylindrical portion 35d are in surface contact with each other, but the manner of contact is not limited to surface contact. The third modified example relates to a modified example of the contact.

[0052] FIG. 9 is an explanatory diagram showing the inside plug 50 and a dispenser tube portion 82 according to a third modified example. In the third modified example, a dispenser tube portion 82 is provided in the trigger-type dispenser 20 instead of the dispenser tube portion 35d in the above-described embodiment. The dispenser tube portion 82 has a cylindrical shape. One or more annular protrusions 84 are formed on the outer periphery of the dispenser tube portion 82. In the example shown in FIG. 9, four annular protrusions 84 are formed. These annular protrusions 84 come into contact with the inner periphery of the upper cylindrical portion 52.

[0053] Even in this third variant, when the trigger-type dispenser 20 rises relative to the container body 10, the sealing of the container 1 can be maintained as long as one of the annular protrusions 84 maintains contact with the inner circumference of the upper cylindrical portion 52.

[0054] (Fourth Modification) Fig. 10 is an explanatory diagram showing a fourth modified inner plug 90 and dispenser tube portion 35d. The fourth modified inner plug 90 has an inner plug tube portion 91 having an upper tube portion 92 and a lower tube portion 93, a protruding portion 55, a bottom portion 57, and an inner plug tube portion 58. One or more annular protrusions 94 are formed on the inner periphery of the upper tube portion 92 according to the fourth modified embodiment. In the example shown in Fig. 10, four annular protrusions 94 are formed. These annular protrusions 94 contact the outer periphery of the dispenser tube portion 35d.

[0055] Even in this fourth variant, when the trigger-type dispenser 20 rises relative to the container body 10, the sealing of the container 1 can be maintained as long as any of the annular protrusions 94 maintains contact with the outer periphery of the dispenser cylindrical portion 35d.

[0056] <Supplementary information> Although the preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, the technical scope of the present invention is not limited to these examples. It is clear that a person skilled in the art of the present invention can conceive of various modifications or alterations within the scope of the technical idea described in the claims, and it is understood that these also naturally fall within the technical scope of the present invention. [Explanation of symbols]

[0057] 1 container 10 Container body 12 Torso 14 Main body cylinder 20 Trigger-type dispenser 22 Mounting cap 24 nozzles 26 Operating lever 26A Lever body 26B Guide part 28 Headcover 30 Main body 32 Neck 34 Vertical cylinder part 35 Intake 35a Communication hole 35b Intake valve 35c Discharge valve 35d Discharge cylinder part 36 Horizontal cylinder part 37 Pipe 38 Holding part 40 Pump 42 cylinders 44 Piston 45 Seal part 46 Pump Room 47 coil spring 50, 60, 70, 90 Inner stopper 51 Inner plug cylinder 52 Upper barrel 53 Lower barrel 54 Aperture 55 Overhang 57 Bottom 58 Inner plug tube part 61 1st protrusion 62 Ball Valve 63 2nd protrusion

Claims

1. a container body having a body portion that forms a storage space for the liquid material and a main body tubular portion that is connected to the storage space; a dispenser that engages with the cylindrical main body portion so as to be movable along the axial direction of the cylindrical main body portion and dispenses the liquid material contained in the containing space; an inner plug located inside the main body tubular portion and the barrel portion; Equipped with The inside plug is a cylindrical inner plug portion having a cylindrical shape; an inner plug tube portion that serves as a flow path for the liquid contained in the containing space; and The dispenser comprises: a dispenser tube portion whose tip is inserted into the inner plug tube portion; and a dispenser cylindrical portion that overlaps with the inner plug cylindrical portion in the axial direction of the main body cylindrical portion and moves along the axial direction of the main body cylindrical portion while maintaining contact with the inner periphery of the inner plug cylindrical portion when the dispenser moves up and down relative to the container body; and a length by which the dispenser tube portion is inserted into the inner plug tube portion is shorter than a length by which the inner plug tube portion and the dispenser tube portion overlap in the axial direction of the main body tube portion.

2. The dispenser is engaged with the main body cylindrical portion by threading, 2. The container according to claim 1, wherein a length of the main body tubular portion in the axial direction between a position where the dispenser is unscrewed from the main body tubular portion and a position where the screwing is completed is longer than a length of the dispenser tube portion inserted into the inner plug tube portion.

3. The inner plug cylindrical portion is a first region where the inner plug cylindrical portion and the discharger cylindrical portion come into contact; and 3. The container according to claim 1, further comprising a second region located between the first region and the inner plug tube portion and having an opening formed therein.

4. The container according to claim 3 , wherein the dispenser cylindrical portion is in surface contact with an inner peripheral surface of the inner plug cylindrical portion.

5. One or more annular projections are formed on the outer periphery of the discharger cylindrical portion, The container according to any one of claims 1 to 3, wherein the one or more annular protrusions are in contact with the inner periphery of the inner plug cylindrical portion.

6. One or more annular projections are formed on the inner periphery of the inner plug cylindrical portion, The container according to any one of claims 1 to 3, wherein the one or more annular projections contact the outer periphery of the dispenser cylindrical portion.

7. 7. The container according to claim 1, wherein the inner plug tube portion has a valve portion that restricts fluid movement from the dispenser cylindrical portion side to the accommodation space side.

8. The valve unit is configured using a ball valve, 8. The container according to claim 7, wherein the inner plug tube portion has an annular protrusion on an inner peripheral surface thereof closer to the dispenser tube portion than the valve portion.

9. 9. The container according to claim 1, wherein the inner plug tube portion and the dispenser tube portion are positioned on the axis of the main body cylindrical portion.

Images