JP2006016015A - Pump type container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To surely realize a sealing function exhibiting an unused condition by a simple structure regardless of a shape of a depressing head in a pump type container. <P>SOLUTION: The pump type container is composed of a mounting member 20 respectively hanging a bung cylinder 26 with a bottom plate 28 breakable by pushing in a container body 2 through an inward flange 24 from the upper end of a fitting cylinder 22 fitted on the outer face of an upper part of the container body, and a breakable ring 34 with a larger outer diameter than the fitting cylinder through a weakened line 30 from the lower end of the fitting cylinder 22, a longitudinal cylinder 40 whose lower end face is hooked on the upper face of the breakable ring 34, and standing from the outer face of the fitting cylinder 22, and a longitudinal pump 50 with the depressing head in which a cylinder 52 is hung in the bung cylinder 26 through a flange part 53 from the inner face side of the longitudinal cylinder 40. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a pump-type container, and more particularly to a pump-type container having a so-called sealing function.

  In recent years, a container having a sealing function has been demanded in order to maintain the quality of the contents of the container.

  In response to this request, in Patent Document 1, in order to prevent mischief such as the replacement of the contents of a pump container such as a hotel, a mounting cylinder for retaining a vertical pump suspended in the container body is used. It has been proposed that the lower end of the mounting cylinder is connected to a virgin ring fixedly fitted to the base of the mouth neck through a weakening line, while being fitted to the upper part of the container neck.

Further, in Patent Document 2, a push-down head with a nozzle having a front opening is raised from the neck of the container body, and a nozzle insertion groove is drilled upward from the lower end of the front wall of the cover of the push-down head. The cylinder is placed on the upper end surface of the mounting cylinder fitted to the container body neck of the container, and a rupture band for holding down the push-down head is provided on both sides of the insertion groove below the nozzle.
JP2003-165563 JP2003-165562 Patent No. 3024089

  The thing of the said patent document 1 guarantees the sealing state of the vertical pump with respect to a container body opening neck, and a mounting cylinder, and is not the structure which guarantees that a container is unused.

  Moreover, since the sealing mechanism is comprised by the nozzle and the nozzle insertion groove | channel, the thing of patent document 2 is applicable only to the container which has a comparatively long nozzle.

  As a result of diligent examination of these problems, the applicant of the present invention has provided an inner plug (cylinder) with a weak line that closes the opening of the container body as part of the sealing mechanism. It came to be considered that an effective solution would be to make it possible to break by lowering the vertical pump arranged higher than the normal mounting position by removing the breaking ring). Among these ideas, provision of an inner plug that can be broken by pressing is employed in, for example, a hermetic cap (for example, Patent Document 3), but these are not part of a sealing mechanism and are illegal. No measures have been taken to prevent the act of forcibly opening the container for the purpose.

  In view of the above, the object of the present invention is to reliably realize a sealing function indicating that it is in an unused state regardless of the shape of the pressing head with a simple structure. From the fitted upper end of the mounting cylinder to the inside of the container body, a stopper tube with a bottom wall that can be easily broken is suspended from the lower end of the mounting cylinder via a weak line, and the upper surface of the fracture ring is suspended. An object of the present invention is to provide a structure in which a vertical cylinder whose lower end surface is locked is raised and a cylinder is suspended from the inner surface side of the vertical cylinder into the plug cylinder via a flange.

The first means includes a container body 2 having an upper opening,
From the upper end of the mounting cylinder 22 fitted to the upper outer surface of the container body, the stopper 26 with a bottom plate 28 that can be broken by pressing is inserted into the container body 2 through the inward flange 24, and from the lower end of the mounting cylinder 22 A mounting member 20 that respectively hangs a fracture ring 34 having a larger outer diameter than the mounting cylinder via the weakening line 30;
A vertical cylinder 40 raised from the outer surface of the mounting cylinder 22 by locking the lower part to the upper surface of the breaking ring 34, and
A vertical pump 50 with a push-down head, in which a cylinder 52 is suspended from the inner surface side of the vertical cylinder 40 into the plug cylinder 26 via a flange 53;
It is characterized by comprising.

  Here, the “plug tube” can be ruptured by pressing by forming a weakening line (for example, a thin break line) on the periphery of the bottom plate 28.

  The “vertical pump” is desirably provided so that the upper surface of the pressing head 60 does not fall out of the vertical cylinder 40 even when the upper surface of the pressing head 60 is pushed down beyond the lowest position with respect to the cylinder 52. For this purpose, a locking groove for fixing to the flange 53 of the cylinder 52 may be provided on the inner surface of the vertical cylinder, and when the pressing head is pressed down to the lowermost position, the nozzle of the pressing head is You may provide so that it may contact | abut to the upper end part side of the said vertical cylinder. These configurations will be described later.

  In the “cylinder”, a suction pipe is suspended from the lower end portion of the cylinder peripheral wall, and the lower end surface of the suction pipe is preferably a blade shape. When the inner solution is a liquid having a relatively high viscosity, it is desirable to make the suction pipe project short from the cylinder and make the bottom wall a movable wall in order to increase the internal volume. Of course, the bottom wall can be a fixed wall as described later with reference to FIG.

  The “vertical cylinder” functions as a support cylinder that prevents the cylinder from descending by coming into contact with the upper surface of the fracture ring 34, and functions as a cylinder mounting cylinder after the fracture ring is removed. It is desirable to form it so that it can be fitted into the head.

  The `` breaking ring '' is a part of the rupture band, and if necessary, it is desirable to break and remove a knob near the rupture band, but by pressing down on the lower surface of the vertical cylinder 40, You may provide so that the weak line 30 with the attachment cylinder 22 may fracture | rupture. The configuration will be described in the fifth means described later.

  The second means includes the first means, and the container body 2 is formed of a peripheral wall 6 having an open lower surface and a movable bottom wall 4 fitted to the inner surface of the lower portion of the peripheral wall.

  The third means has the first means or the second means, and the lower part of the pressing cap 70 is pushed against the upper part of the vertical cylinder 40 by pushing the vertical cylinder 40 through the cap. It is locked so that it can be lowered.

  Specifically, for example, the upper end portion of the vertical cylinder 40 can be provided as a small outer diameter portion so that the lower end surface of the peripheral wall of the cap is engaged with an upward step formed at the lower end of the small outer diameter portion.

  The fourth means includes the first means, the second means, or the third means, and suspends the push-down head guide cylinder 46 downward from the upper part of the vertical cylinder 40. The lower end surface of the guide cylinder is brought into contact with the upper surface of the flange portion 53 of the cylinder 52.

  The fifth means includes the first means, the second means, the third means, or the fourth means, and reduces the diameter of the upper end portion of the container body 2 through the upward stepped portion 12. As the small outer diameter portion 8, the lower end surface is engaged with the upward stepped portion 12 and the mounting cylinder 22 is fitted to the outer surface of the small outer diameter portion, and the mounting body and the container body below the upward stepped portion 12 are fitted. A weakening line 30 is formed between the outer peripheral portion of the lower end portion of the mounting tube 22 and the inner peripheral portion of the upper end portion of the fracture ring 34 with the outer surface portion having substantially the same outer diameter.

The invention according to the first means has the following effects.
○ Because the lower end of the vertical cylinder 40 that houses the vertical pump 50 is locked to the upper surface of the breaking ring 34, the bottom plate 28 of the plug cylinder 26 is broken through the lower end of the vertical pump 50 unless the breaking ring is removed. The liquid cannot be taken out, and it can be assured that the liquid is unused.
○ Since the sealing function is ensured by the vertical cylinder 40 and the breaking ring 34, it can be applied to various pump-type containers regardless of the shape of the pressing head.
○ Since the stopper tube 26 is suspended from the upper end portion of the mounting tube 22 fitted to the upper outer surface of the container body 2 toward the inside of the container, and the breaking ring 34 is suspended from the lower end portion of the mounting tube 22, the stopper tube 26 and the breaking ring 34 can be integrated into a simple configuration.

  According to the invention relating to the second means, since the movable bottom wall 4 for closing the lower surface of the container body 2 is provided, the suction pipe is suspended from the cylinder 52 to the lower part of the container body 2 in order to suck up all the contents. Therefore, it is not necessary to hang the inner plug for a long time corresponding to the suction pipe, so that the volume of the container body can be used effectively.

  According to the third aspect of the invention, since the lower end portion of the push-down cap 70 is locked to the upper portion of the vertical cylinder, the vertical pump can be easily pushed down by pushing down the upper surface of the cap. The pressing force can be reliably transmitted to the vertical pump.

  According to the fourth aspect of the invention, since the push-down head guide cylinder 46 suspended downward from the upper part of the vertical cylinder 40 is brought into contact with the upper surface of the flange 53 of the cylinder 52, the cylinder is interposed via the vertical cylinder 40. 52 can be pushed down reliably.

  According to the fifth aspect of the invention, the mounting cylinder 22 fitted to the small outer diameter portion 8 at the upper end of the container body 2 and the container body outer surface portion below the mounting cylinder 22 have substantially the same outer diameter. Since the connection part between the lower end outer edge part and the inner peripheral part of the upper end part of the breaking ring 34 is a weak line, the breaking ring 34 can be easily broken by abutting and pushing down the vertical cylinder 40 to the upper end surface of the breaking ring 34. Therefore, the operation of breaking the weakening line and the operation of breaking the bottom plate 28 of the plug cylinder 26 can be performed by one operation of pushing down the vertical cylinder 40, which is convenient.

  The container according to the present invention includes a container body 2, a mounting member 20, a vertical cylinder 40, a vertical pump 50, and a pressing cap 70. Each of these members can be formed of a synthetic resin.

  The container body 2 includes a cylindrical peripheral wall 6 and a movable bottom wall 4 fitted to the lower part of the peripheral wall. The movable bottom wall is configured to be able to be raised by negative pressure inside the container body, and since the structure thereof is a known one, the description thereof is omitted. The container body peripheral wall 6 has an upper wall portion in contact with a plug cylinder, which will be described later, as a small-inner-diameter thick portion 10, and an upper end portion of the peripheral wall formed in a small outer-diameter portion 8 that is reduced in diameter via an upward stepped portion 12. is doing. Further, a shallow fitting groove 14 is provided around the outer surface of the upper wall portion below the upward stepped portion 12.

  The mounting member 20 has a mounting cylinder 22 fitted to the outer surface of the small outer diameter portion 8, and the plug cylinder 26 is attached from the upper end of the mounting cylinder to the container body 2 via the inward flange 24. The fracture rings 34 are suspended from the lower ends. The mounting cylinder 22, the plug cylinder 26, and the fracture ring 34 are preferably formed integrally.

  The lower surface of the mounting cylinder 22 is locked to the upward stepped portion 12 and has substantially the same outer diameter as the peripheral wall portion of the container body 2 below the upward stepped portion 12.

  The plug cylinder 26 has a bottomed cylindrical shape and is fitted in the thick portion 10 of the container body peripheral wall 6, and the bottom plate 28 of the plug cylinder is a weak line formed by a thin portion in the peripheral portion. By forming 30 around, it can be easily broken by pressing. Further, the illustrated plug cylinder 26 has a small inner diameter portion 26a with its upper end portion protruding slightly inward.

  The fracture ring 34 is formed in a large outer diameter cylindrical shape that expands through an upwardly stepped upper surface, and a weakening line 30 is provided between the upper end inner peripheral portion of the cylindrical wall and the lower end outer peripheral portion of the mounting cylinder 22. Is forming. Further, as shown in FIG. 2, a weakening line 36 is formed in a part of the breaking ring 34, and a knob 38 for breaking the breaking band is provided in the vicinity of the breaking band as shown in FIG. However, instead of providing these break bands and knobs, the strength of the weakening line may be set so that the weakening line 36 is separated by pushing down the upper surface of the breaking ring 34 with a vertical cylinder described later. It is assumed that the breaking ring 34 has such a thickness that the vertical cylinder can be reliably locked by the upper surface thereof.

  The vertical cylinder 40 is erected from the outer surface of the mounting cylinder 22 with its lower end face engaged with the upper surface of the fracture ring 34. The illustrated vertical tube 40 includes a lower portion 40a including a lower end portion that fits into the mounting tube 22, a thick intermediate portion 40b that has the same outer diameter as the lower portion and a small inner diameter, and the same inner diameter as the intermediate portion. And an upper portion 40c formed with a small outer diameter, and an upward step 42 for locking the lower end of the cap, which will be described later, is formed between the outer surfaces of the intermediate portion 40b and the upper portion 40c. From the upper end portion of the vertical cylinder 40, a guide cylinder 46 of a push-down head, which will be described later, is suspended from the upper end portion of the vertical cylinder 40 to the vicinity of the vertical cylinder intermediate portion 40b. The folded portion 44 is preferably positioned so as to be in contact with the lower surface of the nozzle cylinder when a below-described head with nozzle cylinder is pushed down to the lowest position. The illustrated folded portion 44 is formed in a tapered shape with a small diameter on the upper and inner sides, but the shape can be appropriately changed.

  The vertical pump 50 includes a cylinder 52 and a pressing head 60 with a nozzle 62 attached to the upper end of a stem that stands up from the inside of the cylinder, and a flange portion attached to the upper end of the peripheral wall 52a of the cylinder 52. 53 is fixed by being fixedly fitted to the inner surface of the wall thickness intermediate portion 40b of the vertical cylinder. The vertical pump sucks the liquid from a suction hole (not shown) with a suction valve formed in the cylinder bottom wall 52b that closes the lower surface of the peripheral wall 52a of the cylinder, and pushes down the push-down head 60. The liquid is discharged from the nozzle 62 through a discharge valve (not shown).

  The cylinder 52 is provided with the outer diameter of the peripheral wall 52a as large as possible within the range that can be inserted into the plug cylinder 26, and the large-diameter liquid suction pipe 54 is suspended from the lower peripheral edge of the cylinder bottom wall 52b. The lower end of the drooping cylinder is provided so as to abut against the weakening line 30 at the peripheral edge of the bottom wall of the plug cylinder 26 when the vertical pump 50 is pushed down. Further, it is desirable that the bottom surface of the drooping cylinder is a sharp inclined surface having a cutter shape.

  The pressing head 60 projects a short cylindrical nozzle cylinder 62 forward from the head peripheral wall.

  The push-down cap 70 has a cylindrical shape with a cap, and the lower inner surface of the cap tube wall is fitted to the upper outer surface of the vertical tube 40, and the lower end surface of the cap tube wall is connected to the upward step portion 42 of the vertical tube. It is locked.

  In the above configuration, the plug 26 of the mounting member 20 seals the opening of the container body 2 in the state of FIG. From this state, when the knob 38 is picked to remove the fracture ring 34 and the upper surface of the push-down cap 70 is pushed down, the push-down force lowers the cylinder 52 together with the vertical cylinder 40 as shown in FIG. When the blade-like lower end of the suction pipe 54 breaks through the plug cylinder 26 to release the sealed state, and when the upper surface of the push-down cap 70 is further pushed down, the lower end of the vertical cylinder 40 is fitted into the container body peripheral wall 6. The vertical pump 50 is prevented from being pulled out by fitting the upper end portion of the cylinder 52 into the small groove portion 26a of the plug cylinder in the mating groove 14 respectively.

  In this state, when the pressing cap 70 is removed and the pressing head 60 is pressed down against the upward biasing force, the liquid in the container body 2 can be discharged.

  Unlike the above correct procedure, when attempting to remove the contents illegally, for example, while holding the vertical cylinder 40 with one hand, remove the pressing cap 70 and place the upper part of the pressing head 60 on the cylinder. It is anticipated that the bottom wall portion of the plug cylinder 26 will be broken by forcibly lowering the cylinder 52 by pushing down beyond the lowest position with respect to the cylinder 52. When the nozzle 62 is pushed down to the lowest position, the nozzle 62 comes into contact with the folded portion 44 from the vertical cylinder 40. Therefore, the nozzle 62 cannot be pushed down any more and the sealed state of the container is maintained.

  FIG. 4 is a second embodiment of the present invention. This embodiment is an example in which the bottom wall of the container body is a normal fixed wall. The same parts as those in the first embodiment are denoted by the same reference numerals and the description thereof is omitted.

  In this embodiment, a suction pipe 54 having a smaller diameter than that of the cylinder is suspended from the center of the bottom wall 52b of the cylinder to the vicinity of the bottom of the container body 2, and the plug 26 is formed in accordance with the shape of the suction pipe. The bottom wall central part is depressed to the bottom of the container body to form a bottomed drooping tube 56, and a weakening line 30 is provided around the bottom wall peripheral part of the drooping pipe instead of the peripheral edge of the bottom plate 28 of the stopper tube 26. Is.

  According to this configuration, in the container body 2 having the bottom wall as a fixed wall, it is possible to reliably suck up all the content liquid without unnecessarily reducing the internal volume.

It is a partially notched sectional view of the side surface of the container according to the first embodiment of the present invention. 1 is a front view of the container. 1 is an explanatory diagram of the use state of the container. It is a partially cutaway sectional view of a side surface of a container according to a second embodiment of the present invention.

Explanation of symbols

2 ... container body 4 ... movable bottom wall 6 ... peripheral wall 8 ... small outer diameter part 10 ... thick part
12… Upward stepped portion 14… engagement rib
20 ... Mounting member 22 ... Mounting cylinder 24 ... Inward flange 26 ... Plug cylinder 26a ... Small inner diameter part
28 ... Bottom plate 30 ... Weak line 34 ... Broken ring 38 ... Pick
40 ... Vertical tube 40a ... Lower part 40b ... Same middle part 40c ... Same upper part 42 ... Upward stepped part
44… Folding part 46… Guide tube
50 ... Vertical pump 52 ... Cylinder 52a ... Cylinder peripheral wall 52b ... Cylinder bottom wall
53 ... Buttocks 54 ... Suction pipe 56 ... Drooping pipe
60 ... Pressing head 62 ... Nozzle 70 ... Cap for pressing

Claims (5)

A container body 2 with an upper opening;
From the upper end of the mounting cylinder 22 fitted to the upper outer surface of the container body, the stopper 26 with a bottom plate 28 that can be broken by pressing is inserted into the container body 2 through the inward flange 24, and from the lower end of the mounting cylinder 22 A mounting member 20 that respectively hangs a fracture ring 34 having a larger outer diameter than the mounting cylinder via the weakening line 30;
A vertical cylinder 40 raised from the outer surface of the mounting cylinder 22 by locking the lower part to the upper surface of the breaking ring 34, and
A vertical pump 50 with a push-down head, in which a cylinder 52 is suspended from the inner surface side of the vertical cylinder 40 into the plug cylinder 26 via a flange 53;
A pump-type container comprising:   The pump-type container according to claim 1, wherein the container body (2) is formed by a peripheral wall (6) having an open lower surface and a movable bottom wall (4) fitted to an inner surface of the lower part of the peripheral wall.   The lower part of the pressing cap 70 is locked to the upper part of the vertical cylinder 40 so that the vertical cylinder 40 can be pressed down through the cap. The pump type container as described.   2. The push-down head guide tube 46 is suspended downward from the upper portion of the vertical tube 40, and the lower end surface of the guide tube is brought into contact with the upper surface of the flange portion 53 of the cylinder 52. The pump type container according to claim 2 or claim 3.   The upper end portion of the container body 2 is used as a small outer diameter portion 8 whose diameter is reduced through the upward step portion 12, and the lower end surface is locked to the upward step portion 12 to the outer surface of the small outer diameter portion. And the mounting cylinder and the outer surface of the container body below the upward stepped portion 12 have substantially the same outer diameter, and the outer peripheral portion of the lower end portion of the mounting tube 22 and the inner peripheral portion of the upper end portion of the breaking ring 34 5. A pump-type container according to claim 1, wherein a weakening line 30 is formed therebetween.

Images