JP2011235899A - Sealing type liquid jetting container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to break a top wall of a cover cylinder of a sealing type liquid jetting container having a pushing-down head and to expose the pushing-down head.SOLUTION: The sealing type liquid jetting container includes: a storing container 2 having an neck part 8 standing at the upper part of a body 4; a jetting instrument 20 for stopping the upper part of a pump cylinder 22 hanging down in the neck part 8 by a mounting cylinder 28 fitted on the outer face of the neck part 8, and forming a pushing-down head 46 with the nozzle 47 on the upper half part of an operation member 36 inserted into the pump cylinder 22; and a cover cylinder 50 fitted so as to be able to descend on the storing container 2 so as to cover the operation member 36. A sealing plate 58 is made by surrounding a part of the top wall 56 of the cover cylinder by a breaking line 60, and the sealing plate 58 is provided so as to be able to push up by the jetting instrument by lowering the cover cylinder. The breaking line 60 includes one first breaking element 62A and an appropriate number of the breaking elements 62B, and the second breaking element 62B has a breaking strength lower than that of the first breaking element 62A.

Description

  The present invention relates to a sealed liquid ejection container. In the present specification, the term “liquid” includes liquid substances such as cream and mist.

  2. Description of the Related Art A liquid ejection container provided with a pressing head with a nozzle is provided with a cover cylinder (or cap) that covers the pressing head (Patent Document 1).

  In order to realize such a sealing function of the liquid ejection container, a lower outer peripheral wall of the cap is used as a large outer diameter cylinder for fixing to the container body side, and a weakening line is provided around the upper end of the lower part. (See FIG. 6, paragraph 0015 of Patent Document 2).

  Although not a push-down head type, the pouring cylinder is erected through an elastic tapered wall from the upper end side of the peripheral wall fitted to the mouth and neck of the container body to the lower inner side, and the upper end of the pouring cylinder is In addition, a container is known in which a top plate is attached via a break line, a handle is provided as a part of the top plate, the handle is picked up, the extraction tube is pulled up from the mouth and neck, and the upper end of the extraction tube is opened ( Patent Document 3).

JP-A-9-122545 JP 2006-8238 A JP-A-9-110062

  In the container of the cited document 2, a weakening line is provided around the upper end of the lower part of the cap peripheral wall, but it may be desirable in design to provide a weakening line at a place other than the peripheral wall.

  Since the cap of the container of Patent Document 3 has a structure in which the cap top plate is broken and the dispensing tube is drawn out from the mouth and neck, it cannot be applied to the cover tube of the push-down head type liquid ejection container.

  Accordingly, the present applicant attaches a push-down head type ejector to the mouth and neck of the container body, and attaches a cover cylinder covering the upper part of the container body and the ejector so as to be movable up and down relative to the container body. It was recalled that a break line was formed between the outer peripheral portion and the central portion of the top wall, the central portion was pushed up from the ejector side, and the opening was removed by removal.

  However, when the ejector pushes up the central portion of the top wall of the cover cylinder, the central portion is elastically bent, and the central portion of the top wall may fly outward at the moment when the breaking line is broken.

  A first object of the present invention is to break the top wall of a cover cylinder of a sealed liquid ejection container having a pressing head so that the pressing head can be exposed.

  A second object of the present invention is the above-described sealed liquid ejector, which can prevent a part of the cover tube from popping out when the cover tube is broken and opened.

  The third object of the present invention is to make it possible to reliably confirm that the container is still unopened by the movement during the opening operation of the sealing plate of the cover cylinder of the liquid ejection container.

The first means is a storage container 2 that erects the neck portion 8 above the body 4;
The upper part of the pump cylinder 22 that hangs down into the mouth / neck portion 8 is retained by a mounting cylinder 28 fitted on the outer surface of the mouth / neck portion 8, and is pushed down to the upper half of the operating member 36 inserted into the pump cylinder 22. An ejector 20 formed with a head 46;
A cover cylinder 50 detachably attached to the storage container 2 so as to cover the operation member 36 and having a top wall 56;
Of the top wall 56 of the cover cylinder, at least the wall portion facing the upper surface of the pressing head 46 is a sealing plate 58 surrounded by a broken line 60, and when the cover cylinder 50 is lowered, the sealing plate 58 is on the ejector side. In the liquid ejection container provided so as to be pushed up in contact with
The break line 60 is formed by a cutting line 61, one first breaker 62A and an appropriate number of breakers 62B, which are arranged at a distance from each other, and
The second breakers 62B... Are formed such that the breaking strength is set lower than that of the first breaker 62A, and the second breakers 62B can be broken by the push-up force from the ejector.

  In this means, as shown in FIG. 1 or FIG. 6, a part of the top wall of the cover cylinder is formed on a sealing plate 58 that can be broken from the surroundings, and a first fracture that is a component of the fracture line 60 is formed. It is proposed to make a difference in design strength between the child 62A and the second breaker 62B. Thereby, it can avoid that all the fracture | rupture elements which comprise a fracture line fracture | rupture at once, and can jump out to the exterior of a sealing board.

  The “first breaker” is the largest of the breakers constituting the break line, and remains without being cut to the end. There may be one or more “second breakers”.

The second means includes the first means, and the first breaker 62A is flexible and has a longer and wider break band than the second breaker 62B.
When the sealing plate 58 is twisted after the second breaker 62B is broken by the push-up by the ejector 20 and the sealing plate 58 is rotated upward and outward about the first breaker 62A, the first breaker 62B is turned. The breaker 62A is configured to break.

  This means proposes that the first breaker 62A be a flexible break band as shown in FIG. The term “flexibility” means that it can be bent to a certain extent as shown in FIGS. It is because an opening mark remains by breaking. It is preferable that the first breaker does not break at a stage where the pressing head is completely exposed (a stage where normal liquid discharge is possible). Since the sealing plate 58 rotates upward due to the bending deformation of the first breaker, it is easy to twist the sealing plate to break the first breaker.

  The third means includes the first means, and the first breaker 62A and the second breaker 62B are configured so as to cause a difference in breaking strength by changing the thickness or the sectional area of the break.

  In this means, the breaking strength is adjusted by changing the thickness (width or thickness) of the first breaker 62A and the second breaker 62B as shown in FIG.

  The fourth means includes any one of the first means to the third means, and the lower part of the cover tube 50 covers the upper part of the body 4 of the storage container 2, and the outer peripheral surface of these upper parts of the body A substantially inclined guide groove 16 is formed on one side of the inner peripheral surface of the cover cylinder, and an engaging protrusion 54 that enters the guide groove 16 is formed on the other side so that the cover cylinder 50 is raised and lowered by rotation. Forming.

This means proposes a lifting means for the cover cylinder. As shown in FIG. 1, a part of the lifting / lowering means is composed of a substantially oblique guide groove 16 and an engaging protrusion 54 provided in the body of the storage container and the cover tube. As shown by an imaginary line in FIG. 1, the locking protrusion advances obliquely in the guide groove as S ₁ → S ₂ → S ₃ , and thereby the cover cylinder is screwed down. Pushing up can be ensured, and in particular, in combination with the third means, the sealing plate can be gradually pushed up, so that the sealing plate can be reliably prevented from popping out.

  According to the invention relating to the first means, the strength of the breaking strength of the first breaking element 62A and the second breaking element 62B of the breaking line 60 surrounding the sealing plate 58 is increased, so that the sealing plate is exposed outside during the opening operation. It can prevent jumping out.

  According to the invention relating to the second means, by pushing up from the ejector side, the sealing plate 58 is rotated around the breaking band which is the first breaker 62A, and the user twists the sealing plate to make the first Since the breaker 62A is broken, it is possible to reliably prevent the sealing plate from popping out.

  According to the third aspect of the invention, since the difference in breaking strength is caused by changing the thicknesses of the first breaker 62A and the second breaker 62B, the sealing plate 58 can be popped out with a simple structure. Can be prevented.

  According to the fourth aspect of the invention, since the sealing plate is pushed up using the guide groove 16 and the engaging protrusion 54, the sealing plate is gradually moved by moving the engaging member spirally along the guide groove. And can be pushed up reliably.

It is a longitudinal cross-sectional view of the liquid ejection container which concerns on the 1st Embodiment of this invention. It is a top view of the container of FIG. It is a side view of the principal part of the container of FIG. It is a side view which shows one step of the effect | action of the principal part of FIG. It is a side view which shows the other step of an effect | action of the principal part of FIG. It is a top view of the liquid ejection container which concerns on the 2nd Embodiment of this invention.

  1 to 5 show a liquid ejection container according to the first embodiment of the present invention. The liquid ejection container includes a storage container 2, an ejector 20, a cover tube 50, and a shrink film 66. Each of these members can be formed of a synthetic resin unless otherwise specified.

  The storage container 2 has the trunk | drum 4, and has stood the mouth-and-neck part 8 above the trunk | drum.

  In the illustrated example, the storage container 2 is formed of a container body 2A and an auxiliary cylinder 2B. This is because a guide groove described later is formed on the outer surface of the auxiliary cylinder. In the illustrated container body 2A, a body-corresponding portion is formed into a large-diameter trunk portion, a medium-diameter trunk portion, and a small-diameter trunk portion in order from the bottom, and the mouth-and-neck portion 8 is erected from the small-diameter trunk portion via the shoulder portion 6. is doing.

  The auxiliary cylinder 2B has a double cylinder shape in which an inner cylinder 12 having a short foot and an outer cylinder 14 having a long leg are suspended from an annular top plate 10. The auxiliary cylinder 2B has the inner peripheral part of the top plate 10 placed on the shoulder part 6, and the engaging groove 13 formed at the lower end of the inner cylinder 12 is formed in the small diameter barrel part of the container body. The container body is provided so as not to rotate with respect to the container body.

  A guide groove 16 is formed on the outer surface of the outer cylinder 14 for guiding an engaging protrusion described later as depicted by a dotted line in FIG. The guide groove 16 forms first and second stop portions 16b and 16d whose both upper and lower sides are horizontal on both upper and lower ends of the oblique groove portion 16c, and is perpendicular to the upper end surface of the outer cylinder 14 from the first stop portion 16b. The long inlet 16a is extended short. A stopper 18 is formed at each continuous portion of the introduction port 16a, the first stop portion 16b, the oblique groove portion 16c, and the second stop portion 16d.

  The ejector 20 includes a pump cylinder 22, a mounting cylinder 28, and an operating member 36.

  The pump cylinder 22 has an outward flange 24 at the upper end of the cylindrical wall suspended in the mouth-and-neck portion 8, and locks the outward flange to the upper end surface of the mouth-and-neck portion 8, and the lower end portion of the cylindrical wall. A suction valve 26 is provided. From the suction valve, a suction pipe drawn in a partially omitted manner is suspended near the bottom of the container body.

  The mounting cylinder 28 has an inward flange-like wall 30 at the upper end of the cylinder wall screwed to the outer surface of the mouth-and-neck portion, and this inward-flange-like wall is crimped to the upper surface of the outward flange 24. Yes. A guide tube 32 is raised from the inner edge of the upper surface of the inward flange-like wall 30, and a cylindrical upright wall 34 is raised from the outer side.

  The actuating member 36 includes a plunger 38 having a cylindrical piston 40 sliding on the inner surface of the pump cylinder 22 at the lower end, a valve rod 42 inserted into the plunger, and a piston guide 44 fitted to the upper outer surface of the plunger. And a push-down head 46 having a second cylinder fitted to the upper part of the piston guide on the lower surface. 47 is a nozzle. The piston guide is urged upward by a spring, and a discharge valve 48 is formed between the upper end of the plunger and the lower surface of the push-down head.

  The cover cylinder 50 is formed by a cylinder wall 52 fitted to the outer surface of the auxiliary cylinder 2B and a top wall 56 that closes the upper surface of the cylinder wall. The cover cylinder 50 is formed of a material having such a rigidity that a first breaker, which will be described later, is bent by being pushed up on the ejector side.

  The cylindrical wall 52 in the illustrated example has a small-diameter cylindrical portion 52c erected from the upper portion of the large-diameter cylindrical portion 52a through an inward flange-shaped reduced-diameter portion 52b, and the upper end portion of the small-diameter cylindrical portion is further reduced in taper. Then, it continues to the top wall 56. The reduced diameter portion 52b and the small diameter cylindrical portion 52c have shapes corresponding to the contours of the top plate 10 of the auxiliary cylinder 2B and the cylinder wall of the mounting cylinder 28. Although it is not always necessary to have such a shape, it is easy to operate because the small diameter cylindrical portion 52c can be sandwiched between the thumb and the middle finger and the indexing finger can be pressed down when operating the pressing head described later.

  An engaging protrusion 54 protrudes from the inner surface of the large-diameter cylindrical portion 52a of the cylindrical wall. The engagement protrusion is inserted into the guide groove 16, and is configured such that the cover cylinder is screwed down by sliding from the first stop portion 16b to the second stop portion 16d via the oblique groove portion 16c. is doing.

  However, in the present invention, it is not an essential condition that the cover cylinder 50 is screwed down with respect to the container body. For example, the oblique groove portion may be guided as a vertical groove so as to descend vertically.

  The top wall 56 of the cover cylinder 50 has a sealing plate 58. As shown in FIG. 1, the sealing plate 58 is formed thinner than the surrounding peripheral wall portion. As shown in FIG. 2, the sealing plate is formed by surrounding the outer peripheral portion of the circular top wall portion facing the upper surface of the pressing head 46 with a broken line 60. A recessed portion 57 is formed in the top wall portion adjacent to the sealing plate 58.

  The breaking line 60 is composed of a cutting line 61 and a first breaking element 62A and second breaking elements 62B and 62B which are arranged at appropriate intervals in the circumferential direction.

  The first breaker 62A is one breaker, and in the illustrated example, is a break band having a certain length (deformation allowance) extending from the outer peripheral portion of the sealing plate 58 to the outer end portion of the recessed portion 57. is there. This breaking band has flexibility and functions as a rotating shaft portion of the sealing plate.

  The first breaker 62A is not broken until the sealing plate 58 is rotated (or tilted) to some extent as shown in FIG. 5 by being pushed up from at least the ejector (pressing head in the illustrated example) side. It has flexibility. When the sealing plate 58 is further rotated, the first breaker 62A breaks.

  According to this configuration, when the cover cylinder is lowered and the sealing plate 58 is relatively pushed up by the ejector, the sealing plate 58 rotates and tilts against the bending of the first breaker 62A. It is easy to confirm that there were no frauds.

  That is, when an unauthorized opening is performed in the distribution stage, since the first breaker 62A and the second breaker 62B are cut and there is no sealing plate, the trace of opening is usually clear at first glance. It is. Even if the broken breaker is joined with an adhesive or the like, the function of the first breaker 62A for connecting the sealing plate and the surrounding top wall portion so as to be deflectable cannot be recovered. Therefore, the movement that the first breaker 62A rotates around the first breaker cannot be restored.

  Of course, it is possible to visually confirm whether or not the first breaker 62B is cut. However, there may be cases where the work place is dark or is rushed and the visual confirmation is neglected. According to the operation of the present invention, since the movement of the sealing plate is remarkably different before and after opening, it is possible to confirm opening / unopening without forcing the user to be highly careful.

  The second breaker 62B is a bridge type that has a lower breaking strength and a shorter length than the first breaker 62A. This type has almost no room for deformation (expansion and contraction and bending) as compared with the first breaker, and easily breaks when pushed up from the ejector 20 side.

  Although the number of the second breakers 62B may be one, a plurality of the second breakers 62B are provided in the illustrated example. This is to prevent breakage just by touching the sealing plate. The plurality of second breakers 62B and 62B can be formed to have the same length.

  The shrink film 66 covers the storage container 2 and the cover cylinder 50.

  In the above configuration, when the cover cylinder 50 is turned from the state shown in FIG. 1 with the shrink film 66 attached, the cover cylinder is screwed down. Thereby, as shown in FIG. 4 of the present application, the tip portion of the ejector 20 abuts against the sealing plate 58 to break the second breaker 62B. However, in this state, since the first breaker 62A is not cut, the sealing plate does not jump out.

  When the cover cylinder 50 is further rotated, the sealing plate 58 rotates as the first breaker 62A bends as shown in FIG. This is because the sealing plate 58 is moved to a position where it can be easily gripped and twisted.

  After that, the first breaker 62A may be broken by gripping and turning the sealing plate 58 by hand. Since the first breaker 62A is broken while the sealing plate 58 is gripped, the above-described sealing plate can be reliably prevented from popping out.

  Hereinafter, other embodiments of the present invention will be described. In these descriptions, the description of the same configuration as that of the first embodiment is omitted.

  FIG. 6 shows a liquid ejection container according to the second embodiment of the present invention.

  In the present embodiment, the first breaker 62A is also a bridge type having the same length as the second breaker 62B, and the second breaker 62B is changed from the first breaker 62A by changing the thickness. Is also fragile and is configured to be cut before the first breaker 62A.

  Further, in the illustrated example, in addition to the second breaker, a third breaker 62C that is more fragile than the second breaker is provided. As a result, the breaker breaks in three stages, thereby reducing the risk of the sealing plate 58 jumping outward. Similarly, fourth and fifth breakers may be provided. Unlike the first embodiment, the breakers other than the first breaker are referred to as second and third breakers, respectively, except for the thickness, there is no structural difference between the breakers. Because.

DESCRIPTION OF SYMBOLS 2 ... Storage container 2A ... Container body 4 ... Torso 6 ... Shoulder part 8 ... Mouth neck part 2B ... Auxiliary cylinder 10 ... Top plate 12 ... Inner cylinder 13 ... Engagement protrusion 14 ... Outer cylinder 16 ... Guide groove 16a ... Introduction port 16b ... 1st stop part 16c ... Slant groove part 16d ... 2nd stop part 18 ... Stopper
DESCRIPTION OF SYMBOLS 20 ... Spout 22 ... Pump cylinder 24 ... Outward flange 26 ... Suction valve 28 ... Mounting cylinder 30 ... Inward flange-like wall 32 ... Guide cylinder 34 ... Standing wall 36 ... Actuating member 38 ... Plunger 40 ... Cylindrical piston 42 ... Valve rod 44 ... Piston guide 46 ... Pressing head 47 ... Nozzle 48 ... Discharge valve 50 ... Cover cylinder 52 ... Cylinder wall 52a ... Large diameter cylinder part 52b ... Reduced diameter part 52c ... Small diameter cylinder part 54 ... Engagement protrusion 56 ... Top wall 57 ... concave 58 ... sealing plate
60 ... Break line 61 ... Cut line 62A ... First breaker 62B ... Second breaker 62C ... Third breaker 66 ... Shrink film

Claims (4)

A storage container (2) for raising the mouth and neck (8) above the body (4);
The upper part of the pump cylinder (22) that hangs into the mouth and neck (8) is secured by the mounting cylinder (28) fitted on the outer surface of the mouth and neck (8) and inserted into the pump cylinder (22). An ejector (20) in which a pressing head (46) is formed in the upper half of the member (36);
A cover cylinder (50) attached to the storage container (2) so as to be lowered so as to cover the operating member (36) and having a top wall (56);
At least the wall portion of the top wall (56) of the cover cylinder that faces the upper surface of the pressing head (46) is a sealing plate (58) surrounded by the fracture line (60), and the cover cylinder (50 is lowered) In the liquid ejection container provided so that the sealing plate (58) is pushed up in contact with the ejector side,
The breaking line (60) is formed by a cutting line (61), and one first breaking element (62A) and an appropriate number of breaking elements (62B,...) Spaced apart from each other. With
The second breaker (62B...) Is characterized in that it has a lower breaking strength than the first breaker (62A) and can be broken by the pushing-up force from the ejector. A sealed liquid ejection container. The first breaker (62A) has flexibility and is longer and wider than the second breaker (62B).
After the second breaker (62B) is broken by the push-up by the ejector (20) and the sealing plate (58) is rotated upward and outward about the first breaker (62A), the sealing is performed. The sealed liquid ejection container according to claim 1, wherein the first breaker (62A) is broken when the plate is twisted.   2. The sealed liquid jet according to claim 1, wherein the first breaker (62 </ b> A) and the second breaker (62 </ b> B) are configured so as to cause a difference in breaking strength by changing the thickness. container. The lower part of the cover cylinder (50) covers the upper part of the body (4) of the storage container (2), and a substantially oblique guide groove (16) is formed on one of the outer peripheral surface of the upper part of the body and the inner peripheral surface of the cover cylinder. And an engaging protrusion (54) that protrudes into the guide groove (16) on the other side, so that the cover cylinder (50) is raised and lowered by rotation. The sealed liquid ejection container according to any one of claims 1 to 3.