Dispensing container

Abstract

To create a dispensing container allowed to reduce the remaining amount of a content while preventing a pipe from falling out of a dispenser in refilling work by inhibiting adhesion of a press member.SOLUTION: A dispensing container comprises a container body 10 that accommodates a content, a dispenser 20 that is made up with a container lid 21 fitted to the container body 10, a cylinder 23 extending downward from the container lid 21, a pipe 24 coupled to a lower end of the cylinder 23, and a discharge head 26 provided to be movable up and down, and a press member 30 that has a slider 31 and press-plate material 32 provided slidably over an outer peripheral surface of the pipe 24 and that descends as the content decreases. A rib 14 is provided on any one of opposed surfaces of the press-plate material 32 and a bottom wall 11 of the container lid 21 so as to inhibit adhesion between the press-plate material 32 and the bottom wall 11 when the descending press-plate material 32 comes to a lower position B.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a dispensing container for high-viscosity liquids. [Background technology]

[0002] As prior art, there is known a discharge container equipped with a discharger (pump) comprising an attachment cap fitted to the mouth of the container body, a cylinder and pipe hanging down from the bottom end of the attachment cap into the container body, and a discharge head arranged above the attachment cap so as to be movable up and down while being biased upward; by moving the discharge head up and down, the highly viscous liquid contents in the container body are sucked up and discharged from the nozzle of the discharge head; and a pressure plate member is placed on the liquid surface of the contents in the container body, and the pressure plate member descends as the liquid level drops, so that the contents in the container body are sucked up from the lower end opening of the pipe (see Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Utility Model Application Publication No. 57-183283 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the above-mentioned conventional dispensing container, when the pressure plate member reaches the lower end of the container, it sticks to the bottom wall of the container body due to the adhesive force generated between it and the bottom wall, making it difficult to remove the dispenser (pump) from the mouth to refill the contents, and if an attempt is made to remove it with too much force, the pipe may fall off from the dispenser (pump).

[0005] There has also been a demand for reducing the amount of content (high viscosity liquid) that tends to remain near the bottom wall when the content is completely discharged.

[0006] The present invention aims to solve the problems of the conventional technology described above by creating a dispensing container that prevents the pipe from falling off the dispenser (pump) during refilling work and reduces the amount of remaining content by suppressing sticking of the pressing member. [Means for solving the problem]

[0007] Among the means for solving the above problems, the main means of the present invention is: a cylindrical container body with a bottom that accommodates contents; a dispenser including a container lid fitted to the container body, a cylinder suspended from the container lid, a pipe connected to the lower end of the cylinder, and a dispenser head mounted on an upper portion of the cylinder so as to be movable up and down while being biased upward; A dispensing container comprising: a slider that is fitted onto the outer peripheral surface of the pipe and is slidable in the axial direction; and a pressing member that has a pressing plate attached to the lower end of the slider and that descends as the content decreases, A rib is provided on either the opposing surface of the pressure plate material or the bottom wall of the container lid body to prevent sticking between the pressure plate material and the bottom wall when the lowered pressure plate material reaches the lower position. The main feature of the present invention is that when the container lid is removed from the container body together with the dispenser (pump) for refilling, the pipe can be prevented from falling off from the lower end of the cylinder.

[0008] Another aspect of the present invention is that the above-mentioned main aspect of the present invention is supplemented by the fact that the pressure plate material has a flow groove formed by elastic deformation of a part thereof. The above means makes it possible to reduce the adsorption force (adhesion strength), and in the final stage of the discharge operation, the contents remaining on the bottom wall pass through the circulation groove and reach the lower end opening, making it possible to further reduce the amount of remaining contents.

[0009] Another aspect of the present invention is any one of the above aspects, further comprising the addition that the pressing plate material is made of silicone rubber or elastomer. In the above-described means, the presser plate material can be easily elastically deformed when placed on the rib, so that the flow grooves can be reliably formed. [Effects of the Invention]

[0010] In the present invention, when the container lid is removed from the container body together with the dispenser (pump) for refilling, the pipe can be prevented from falling off from the lower end of the cylinder. Furthermore, in the final stage of the dispensing operation, the content remaining on the bottom wall passes through the flow groove and reaches the lower end opening, so the amount of remaining content can be further reduced. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is a cross-sectional view of a discharge container for high-viscosity liquid showing an embodiment of the present invention. [Figure 2] 2 is a bottom view taken along the line II-II in FIG. 1. DETAILED DESCRIPTION OF THE INVENTION

[0012] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a cross-sectional view of a dispensing container for high-viscosity liquids showing an embodiment of the present invention, and FIG. 2 is a bottom view taken along line II-II in FIG. In the following, the direction along the container axis O will be referred to as the axial direction, the vertical direction, or the height direction, the direction perpendicular to the container axis O will be referred to as the radial direction, and the direction circumferentially around the container axis O will be referred to as the circumferential direction.

[0013] First, the configuration of the discharge container will be described. As shown in Figs. 1 and 2, a dispensing container 1 for high-viscosity liquid is used as a container for dispensing liquid contents with a relatively high viscosity, such as emulsion or shampoo. Such a discharge container 1 is configured to include a container body 10 that contains the content (high-viscosity liquid), a discharger (pump) 20 that sucks up the content and discharges it, and a pressing member 30. The container body 10 is a cylindrical member with a bottom, which is formed by erecting a cylindrical side wall 12 on the outer peripheral edge of a circular bottom wall 11, and an open end is provided around the upper part of the side wall 12. At the lower end of the side wall 12 and at one position in the circumferential direction on the inner peripheral part of the bottom wall 11, a rib 14 is provided that protrudes upward.

[0014] The dispenser (pump) 20 includes a container lid 21 having a mouth 21A extending from the center of a shoulder 21B extending from the upper portion of the peripheral wall 21C in a tapered manner, the mouth 21A being attached to the open end 13 of the container body 10; a cap 22 threadedly attached to the mouth 21A; a known cylinder 23 suspended from the container lid 21; a long, cylindrical pipe 24 connected to the lower end of the cylinder 23; and a discharge head 26 mounted on the upper end (top of the cylinder 23) of a stem (not shown) protruding from the cylinder 23 and movable up and down while biased upward. A threaded mechanism connects the outer periphery of the open end 13 to the inner periphery of the peripheral wall 21C of the container lid 21 for detachable attachment. In FIG. 1, the cylinder 23 is omitted and shown hatched, and a tubular portion 23A at the lower end of the cylinder 23 is shown in cross section.

[0015] A piston (not shown) slidably fitted on the inner periphery of the cylinder 23 is connected to the lower end of the stem (not shown), and a suction valve (not shown) is provided at the lower end of the cylinder 23, and a discharge valve (not shown) is provided inside the stem (not shown). The pipe 24 is also provided with a fitting tube 24A and a retaining ring 24B. The fitting tube 24A stands upright from the inner surface of the middle part of the pipe 24 via a wall, and covers and fixes the tube part 23A at the lower end of the cylinder 23. The retaining ring 24B is provided on the outer surface of the lower end of the pipe 24, and supports a sliding body 31 (described later).

[0016] The pressing member 30 includes a short cylindrical sliding body 31 fitted onto the outer peripheral surface of the pipe 24 and slidably mounted in the axial direction, and a disk-shaped pressing plate 32 attached to a flange 31A extending from the lower end of the sliding body 31. The outer peripheral edge of the pressing member 30 is disposed adjacent to the inner peripheral surface 12A of the container body 10 with a small gap therebetween. The sliding body 31 is supported by a retaining ring 24B formed on the outer peripheral surface of the lower end of the pipe 24. The pressing member 30 is formed of a resilient material such as silicone rubber or elastomer, or may be formed of a packing. The pressing plate 32 is configured to be movable in the axial direction together with the sliding body 31 between an upper position A indicated by a dashed line in FIG. 1 and a lower position B indicated by a solid line. At the lower position B indicated by the solid line, the lower surface of the pressing plate 32 rests on the upper end of the rib 14.

[0017] In the discharge container 1, the contents (not shown) are filled into the container body 10 from the open end 13. After filling, the container lid 21 is assembled together with the discharger (pump) 20 and the pressing member 30 by screwing the peripheral wall 21C of the container lid 21 onto the open end 13 of the container body 10.

[0018] Next, the operation of discharging the contents using the dispensing container having the above-mentioned structure will be described. In the discharge container 1, when the discharge head 26 is moved up and down multiple times, a piston, a suction valve, a discharge valve, and the like (not shown) provided in the cylinder 23 are each operated, and the contents in the container body 10 are sucked up through the lower end opening 24C of the pipe 24 and discharged from the tip of the discharge nozzle 27 communicating with the discharge head 26. At this time, in the container body 10, as the contents decrease, the presser plate material 32 descends together with the liquid level.

[0019] When the remaining amount of contents becomes small and the pressure plate material 32 reaches the bottom wall 11 of the container body 10 at lower position B, a portion of the pressure plate material 32 rests on the rib 14, and the other portion rests on the bottom wall 11. At this time, a flow groove (not shown) is formed in a portion of the pressure plate material 32 on the rib 14 side due to elastic deformation, thereby reducing the suction force (adhesion strength) acting between the pressure plate material 32 and the bottom wall 11 and making it possible to prevent the entire surface of the pressure plate material 32 from sticking to the bottom wall 11. This prevents the pipe 24 from falling off the lower end of the cylinder 23 together with the pressure member 30 when the container lid 21 is unscrewed from the container body 10 to remove the dispenser (pump) 20 for refilling. That is, with this discharge container 1, the dispenser (pump) 20 can be easily and reliably removed without affecting the connection between the cylinder 23 and the pipe 24.

[0020] Furthermore, in the final stage of the dispensing operation, the remaining contents pass through the flow groove and reach the lower end opening 24C, so that the amount of contents that tends to remain near the bottom wall 11 can be further reduced.

[0021] The configuration and effects of the present invention have been described above in accordance with the examples, but the present invention is not limited to the above examples. For example, in the above embodiment, the rib 14 forming the flow groove in the pressure plate 32 is formed at one position in the circumferential direction of the outer periphery of the bottom wall 11, but it may be formed at one position in the circumferential direction of the outer periphery on the underside of the pressure plate 32. In other words, it is sufficient that the rib is formed at one position in the circumferential direction of the outer periphery on the opposing surface of either the bottom wall 11 or the pressure plate 32. The rib 14 is not limited to being formed in one place, but may be formed in a plurality of places as required. [Industrial Applicability]

[0022] The present invention can be used in a wider range of applications in the field of dispensing containers for high-viscosity liquids. [Explanation of symbols]

[0023] 1:Discharge container 10: Container body 11: Bottom wall 12: Side wall 12A: Inner surface 13:Open end 14: Rib 20: Discharger (pump) 21: Container lid 21A: Mouth 21B: Shoulder 21C: Peripheral wall 22: Cap 23: Cylinder 23A:Cylinder part 24: Pipe 24A: Fitting tube 24B: Retaining ring 24C: Bottom opening 26: Discharge head 27: Discharge nozzle 30: Pressing member 31: Slider 31A: Flange part 32: Pressing plate material A: Upper position B: Bottom position O: Container axis

Claims

1. a cylindrical container body (10) with a bottom for accommodating contents; a dispenser (20) comprising: a container lid (21) fitted onto the container body (10); a cylinder (23) suspended from the container lid (21); a pipe (24) connected to the lower end of the cylinder (23); and a dispenser head (26) mounted on the upper part of the cylinder (23) so as to be movable up and down while being biased upward; A dispensing container comprising: a slider (31) fitted onto the outer peripheral surface of the pipe (24) and slidable in the axial direction; and a pressing member (30) having a pressing plate (32) attached to the lower end of the slider (31) and descending as the content decreases, A discharge container characterized in that a rib (14) is provided on either the opposing surface of the pressure plate material (32) or the bottom wall (11) of the container lid body (21) to prevent sticking between the pressure plate material (32) and the bottom wall (11) when the lowered pressure plate material (32) reaches a lower position (B).

2. 2. A discharge container according to claim 1, wherein the pressure plate member (32) has a flow groove formed by elastic deformation of a part thereof.

3. 3. A discharge container according to claim 1 or 2, wherein the pressing plate material (32) is made of silicone rubber or elastomer.

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