JP2015063318A - Liquid agent discharger - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a simple-structure liquid agent discharger not having a hitch even if a container is opaque, and being able to discharge a liquid agent without leaving the liquid agent without needing operation to give it a tilt.SOLUTION: A liquid agent discharger includes: a longitudinal cylindrical container body 1; a lid body 2 fitted on an opening part 1a of the container body 1; a manual type discharge head 3A mounted to the lid body 2; a slidably extensible/retractable liquid suction pipe 4 hanging down into the container body 1 from the discharge head 3A; and a blocking plate 5 held in a lower end part of the liquid suction pipe 4. The blocking plate 5 gets on a liquid surface of a liquid agent L stored inside the container body 1, blocks the liquid agent L to a gas phase space 10 above the liquid agent L, and descends according to a liquid surface fall by an amount of the consumed and reduced liquid agent L.

Description

  The present invention relates to a liquid agent discharger that discharges various liquid agents such as shampoo and body soap contained in a container by manual operation of a discharge head at the top of the container.

  This type of liquid dispenser has a structure in which a push-down type or trigger type discharge head is attached to a cap portion of a container for storing a liquid agent, and a tube-like liquid absorption pipe hangs from the discharge head into the container. (Patent Documents 1 to 4). The discharge head incorporates a cylinder and piston with a check valve in the liquid introduction part, and a return spring.When the head is pushed down with the push-down type, when the trigger is pulled with the trigger type When the piston moves forward and the liquid agent in the cylinder is sent to the discharge port, when the head top or the trigger is returned to the original state by the return spring, the liquid in the container is absorbed by the return movement of the associated piston. It is introduced into the cylinder through a tube. Moreover, there are a type in which the liquid agent flows out as it is, a type in which it is sprayed in the form of a mist, and a type in which it is mixed with air and released in the form of bubbles due to the structure of the discharge port.

  As a basic problem of such a liquid agent discharge device, when the amount of liquid agent in the container is reduced to some extent, the tip opening of the liquid suction pipe comes out of the liquid, and even if the discharge head is operated, it becomes impossible to discharge, In order to use up the remaining liquid agent, it may be necessary to remove the discharge head together with the cap from the container.

  As a countermeasure, conventionally, a flexible tube having a surplus length from the discharge head as the liquid absorption pipe is used, and a means for arranging the tip opening at the peripheral portion of the inner bottom of the container by the bending is frequently used ( For example, FIG. 14 of Patent Document 3). With this means, when the remaining amount of liquid agent is low, the liquid agent can be discharged to the end by tilting the container so that the tip opening of the liquid absorption tube is at the lowest position. For this purpose, the position of the tip opening is visually recognized from the outside. It needs to be possible. Therefore, when the container is opaque, the state of the liquid suction pipe cannot be seen, and depending on the tilting direction, the user determines that discharge is impossible even if discharge is possible.

  In addition, in a liquid agent discharge device that is often used tilted forward, a flat-shaped opaque container that swells forward is used, and a front end side inner bottom portion that swells the tip opening of a liquid suction tube composed of the same flexible tube as described above (For example, FIG. 1 of Patent Document 2). In this case, even if the remaining amount of the liquid agent is reduced, it accumulates in the inner bottom portion of the front end side that is the lowest in the forward tilt state, and the liquid agent can be discharged almost to the end because the tip opening of the liquid absorption pipe is immersed, but the container is flat with a small capacity. There is a difficulty that it is limited to form.

Utility Model Registration No. 2504603 (Fig. 5) JP-A-8-332422 (FIG. 1) Japanese Patent Laid-Open No. 9-268473 (FIGS. 1 and 14) Utility Model Registration No. 3088221 (FIG. 1)

  In view of the above-mentioned circumstances, the present invention allows a liquid dispenser to discharge without leaving a contained liquid agent without any trouble even if the container is opaque without a tilting operation and with a simple structure. In addition, it aims at providing what can prevent the oxidative degradation of the liquid agent by the contact with air.

  If the means for achieving the above object is shown with reference numerals in the drawings, the liquid agent discharge device according to the invention of claim 1 is a container body 1 containing a liquid agent L in a vertically open cylindrical shape, A lid 2 fitted into the opening 1a of the container body 1, a manual discharge head (a push-down discharge head 3A, a trigger discharge head 3B) attached to the lid 2, and a lower end open. The liquid suction pipe 4 is suspended from the discharge heads 3A, 3B into the container body 1 and the sealing plate 5 is held at the lower end of the liquid suction pipe 4, and the liquid suction pipe 4 is fitted in a telescopic manner. The sealing plate 5 is mounted on the liquid surface of the liquid agent L accommodated in the container body 1 and slides the liquid agent L on the upper gas phase space. 10 and is configured to descend as the liquid level decreases due to the consumption reduction of the liquid L. It is as.

  As a preferred embodiment of the liquid agent dispenser according to the first aspect, in the invention according to the second aspect, the sealing plate 5 has at least a sliding contact portion with the inner peripheral surface of the container body 1 formed of a rubber material (rubber plate portion 52). That is, the invention of claim 3 stipulates that the container body 1 has a vent 11 that can be opened and closed at the bottom.

  Next, effects of the present invention will be described with reference numerals in the drawings. According to the liquid agent discharge device according to the invention of claim 1, the liquid agent L accommodated in the container main body 1 by the manual operation of the manual discharge heads 3A and 3B is sucked through the liquid absorption pipe 4 and discharged and consumed. As the liquid level is lowered due to the consumption reduction, the sealing plate 5 on the liquid level is lowered by the vacuum suction force from the liquid agent L side while maintaining the sealed state with respect to the upper gas phase space 10, so that the liquid agent L remains little. Even in this case, the lower end opening 4a of the liquid suction pipe 4 is kept immersed in the liquid L, and finally the bottom surface of the sealing plate 5 is in close contact with the inner bottom surface of the container body 1 so that the remaining amount of the liquid L is substantially reduced. Dispensing can be reliably continued until it reaches zero. Therefore, this liquid agent dispenser does not require an operation of tilting even when the amount of the liquid agent L is low, and even if the container is opaque, the liquid agent L can be used up to the end. Further, in this liquid agent dispenser, even if the liquid agent L is liable to be oxidized and deteriorated by contact with air, the liquid agent L is always kept blocked from the upper gas phase space 10 by the sealing plate 5. Therefore, there is an advantage that high quality can be maintained over a long period of time.

  According to the invention of claim 2, since the sliding contact portion of the sealing plate 5 with the inner peripheral surface of the container body 1 is made of a rubber material, the sealing plate 5 can more reliably block the liquid agent L from the gas phase space 10. The

  According to the invention of claim 3, when the liquid agent L is used up and replenished with a new liquid agent L, the outside air can flow into the lower side of the sealing plate 5 by opening the vent hole 11 at the bottom of the container body 1. Therefore, the sealing plate 5 together with the lid 2 can be easily pulled up and removed from the container body 1.

It is a principal part vertical side view of the liquid agent discharge device which concerns on 1st Embodiment of this invention. It is a principal part vertical side view which shows the condition from the use start of the same liquid agent discharge device to the end of use in order of (a)-(f). It is a longitudinal cross-sectional view of the principal part of the liquid absorption pipe | tube in the same liquid agent discharge device. It is a side view of the upper part of the liquid agent discharger which concerns on 2nd Embodiment of this invention.

  Hereinafter, embodiments of a liquid agent dispenser according to the present invention will be specifically described with reference to the drawings. 1 to 3 show a first embodiment, and FIG. 4 shows a second embodiment.

  As shown in FIG. 1, in the liquid dispenser of the first embodiment, a substantially conical lid body 2 is fitted into an opening 1a that opens above a vertical cylindrical container body 1 containing a liquid L, A push-down type discharge head 3 </ b> A is fitted on the top of the lid 2 via a cap 6. Then, the liquid absorption tube 4 hangs down from the discharge head 3A into the container main body 1 and the disk-shaped blocking plate 5 fixed to the lower end portion of the liquid absorption tube 4 rides on the liquid surface of the liquid agent L. It is arranged with. The container main body 1, the lid 2, the discharge head 3A, the liquid absorption pipe 4, and the cap 6 are all made of a synthetic resin molded product.

  The container body 1 is formed with a vent hole 11 forming a central screw hole in the bottom wall portion 1b so as to protrude downward. A plug body 7 having a male screw section 7a is screwed into the vent hole 11, and the plug body 7 The vent hole 11 is liquid-tightly sealed through an O-ring 71 fitted to the. Further, an annular projecting edge portion 12 extends downward from the side wall 1 c on the lower end side of the container body 1 so that the head portion 7 b of the plug body 7 is higher than the lower end of the annular projecting edge portion 12. Is set to

  The lid body 2 is fitted to the container body 1 by screwing a female thread portion 21 provided on the inner periphery of the annular skirt 2a with a male thread portion 13 provided on the outer periphery of the upper end portion of the container body 1, and A packing 8 fitted in an annular groove portion 22 provided on the inner side of the skirt portion 2 a is in pressure contact with the upper edge of the container body 1. Although not shown, the top 2b of the lid 2 forms a threaded opening into which the cap 6 is screwed.

  The push-down type discharge head 3A has a general existing structure as a push-down type discharge head, and a head 31 for a push-down operation protrudes upward from a base 30 in which the cap 6 is rotatably fitted. A discharge nozzle 32 protrudes more laterally. Although not shown, the base 30 has a cylinder communicating with the introduction path 40 in the liquid suction pipe 4 via a check valve, and is disposed in the cylinder for raising and lowering the head 31. It has a piston to be interlocked, a return spring that urges the head 31 in the upward direction, and a lead-out path that communicates from the cylinder to the discharge nozzle 32. Is discharged from the discharge nozzle 32, while the head 31 is lifted by the release force of the return spring due to the release of the head 31, and the piston L accompanying the return moves the liquid L in the container body 1 into the liquid absorption pipe. 4 is introduced into the cylinder.

  The liquid suction pipe 4 is configured to be slidable and extendable by an intermediate pipe body 42 and an inner pipe body 43 that are gradually reduced in diameter being fitted into an outer pipe body 41 fixed to the discharge head 3A in a nested manner. . The lower end portion of the inner tube body 43 has a lower end opening 4a communicating with the introduction path 40, and a flange portion 44 for supporting the blocking plate 5 around the lower end opening 4a. In addition, as shown in FIG. 3, the liquid absorption pipe 4 includes an engagement between an inward protruding edge 41a at the lower end of the outer tubular body 41 and an outward protruding edge 42a at the upper end of the intermediate tubular body 42, and an intermediate The intermediate tubular body 42 and the inner tubular body 43 are prevented from dropping downward due to the engagement between the inwardly projecting edge 42 b at the lower end of the tubular body 42 and the outward protruding edge 43 a at the upper end of the inner tubular body 43. ing.

  The sealing plate 5 has a rubber plate portion 52 joined and integrated on the lower surface side of the substrate portion 51 made of a synthetic resin molding, and is fixed to the lower end portion of the inner tube body 43 of the liquid absorption tube 4 by adhesion or welding. Yes. The rubber plate portion 52 is configured to be slightly larger in diameter than the substrate portion 51, and is in close contact with the inner periphery of the side wall portion 1 c of the container body 1 at its periphery.

  In the liquid dispenser having the above-described configuration, as shown in FIG. 2 (a), a lid 2 fitted with a discharge head 3A is fitted into a container body 1 containing a predetermined amount of liquid L, and FIG. 2 (b). The state before use shown in. At this time, first, when the sealing plate 5 is fitted inside the opening 1a of the container body 1, the pressing operation of the discharge head 3A is repeated, so that the sealing plate 5 is located between the sealing plate 5 and the liquid surface of the liquid L. Air is discharged from the discharge nozzle 32 through the liquid suction pipe 4, and the blocking plate 5 descends along with the discharge, and when the liquid L is discharged from the discharge nozzle 32, the blocking plate 5 is the liquid level of the liquid L Since it is in a state of being on top, the lid body 2 may then be screwed and fastened to the container body 1.

  Next, when the discharge head 3A is pushed down during use, the liquid L in the container body 1 is sucked up through the liquid suction pipe 4 and is consumed by discharge. As described above, the blocking plate 5 on the liquid surface descends by the vacuum suction force from the liquid agent L side while maintaining the sealed state with respect to the upper gas phase space 10. As shown in FIG. 2 (d), even when the liquid agent L remains, the lower end opening 4a of the liquid absorption pipe 4 maintains the state immersed in the liquid agent L. In close contact with the inner bottom surface of the main body 1, the discharge can be reliably continued until the remaining amount of the liquid L becomes substantially zero.

  Therefore, this liquid agent dispenser does not require an operation of tilting even when the liquid agent L is low, and can be used up to the end without any trouble even if the container is opaque. Further, in this liquid agent dispenser, even if the liquid agent L is liable to be oxidized and deteriorated by contact with air, the liquid agent L is always kept blocked from the upper gas phase space 10 by the sealing plate 5. Therefore, there is an advantage that high quality can be maintained over a long period of time.

  Thus, after the liquid agent L is used up completely, when refilling the container body 1 with a new liquid agent L, as shown in FIG. 2 (e), if the plug 7 is removed and the vent hole 11 is opened, Since outside air can flow into the lower side of the sealing plate 5, the sealing plate 5 together with the lid 2 can be easily pulled up and detached from the container body 1 as shown in FIG.

  In the liquid agent discharger of the present invention, the manual discharge head is not limited to the push-down discharge head 3A exemplified in the first embodiment, but for example, a trigger discharge head 3B shown in FIG. Various discharge methods such as a pressure-type discharge head can be employed. Further, the present invention can be applied to any of the type in which the liquid agent flows out as it is, the type in which it is sprayed in the form of a mist, and the type in which it is mixed with air and discharged in the form of bubbles due to the structure of the discharge port (discharge nozzle) .

  The liquid dispenser of the second embodiment shown in FIG. 4 is not shown on the container body side, but the first embodiment described above except that the trigger type ejection head 3B is used as the manual type ejection head. This is the same configuration as that of the liquid agent discharger. The trigger-type discharge head 3B has a general existing structure as a trigger-type discharge head, and has a discharge nozzle 32 and a trigger 34 at the front portion of the head main body 33 arranged on the cap 6. As with the push-down type discharge head 3A, the piston disposed in the cylinder provided in the head main body 33 moves in conjunction with the finger, and the liquid agent in the cylinder is discharged from the discharge nozzle 32. On the other hand, by releasing the trigger 34, the piston moves backward in conjunction with the return operation of the trigger 34 via the built-in return spring, and the liquid agent in the container body is introduced into the cylinder through the liquid suction pipe. The

  In addition, as the sealing plate 5, in the embodiment, the rubber plate 52 is joined and integrated on the lower surface side of the substrate portion 51 made of a synthetic resin molded product, but in order to exert a reliable sealing function, It is sufficient that at least the sliding contact portion with the inner peripheral surface of the container body 1 is formed of a rubber material. Therefore, for example, instead of the rubber plate portion 52 shown in the embodiment, a configuration in which a rubber layer that wraps the outer peripheral portion of the substrate portion 51 or a configuration in which an O-ring is fitted to the outer peripheral portion of the substrate portion 51 can be adopted. is there. Further, a hollow portion may be provided in the substrate portion 51 so that the blocking plate 5 can easily float on the liquid surface of the liquid agent L.

  Furthermore, in the present invention, the number of pipes that make the liquid absorption pipe 4 telescopically extend and retract is not limited to the three exemplified in the embodiment, but two or four depending on the inner height of the container body 1. You can set more than books. In addition, in the present invention, various design changes can be made in addition to the embodiment, such as the outer shape of the container main body 1 and the cover plate 2, the mounting structure of the sealing plate 5 with respect to the liquid absorption pipe 4, the opening / closing structure of the vent hole 11, and the like. .

  Liquid dispenser of the present invention is a liquid detergent, cleaning agent, disinfectant, deodorant, fragrance, disinfectant / disinfectant, bleach, in addition to liquid agents used in bathrooms such as shampoos, body soaps and rinses. It can be used as a discharger for various liquid agents such as wrinkle removing agents, liquid fertilizers, and plant activators.

DESCRIPTION OF SYMBOLS 1 Container body 10 Gas-phase space 11 Vent hole 2 Lid 3A Push-down type discharge head (manual type discharge head)
3B Trigger type discharge head (manual type discharge head)
4 Liquid absorbing pipe 41 Outer pipe body 42 Intermediate pipe body 43 Inner pipe body 5 Sealing plate 52 Rubber plate portion (rubber material)
L liquid

Claims (3)

A container body containing a liquid agent in a vertically cylindrical shape opened upward, a lid fitted to the opening of the container body, a manual discharge head attached to the lid, and a lower end opened to the A liquid suction pipe hanging from the discharge head into the container body, and a sealing plate held at the lower end of the liquid suction pipe,
The liquid absorption pipe is composed of a plurality of pipe bodies that are telescopically fitted and slidable,
The sealing plate rides on the liquid surface of the liquid agent accommodated in the container body, seals the liquid agent from the upper gas phase space, and lowers as the liquid surface decreases due to the consumption reduction of the liquid agent. A liquid dispenser configured as described above.   The liquid agent discharge device according to claim 1, wherein the sealing plate is formed of a rubber material at least in sliding contact with the inner peripheral surface of the container body.   The liquid agent dispenser according to claim 1 or 2, further comprising a vent hole that can be opened and closed at a bottom of the container body.

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